From 4ab6174e8cdb007cf500e484bdf454b8d14d524a Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Mon, 25 Feb 2013 14:08:37 -0800
Subject: mfd: Add ChromeOS EC implementation

This is the base EC implementation, which provides a high level
interface to the EC for use by the rest of the kernel. The actual
communcations is dealt with by a separate protocol driver which
registers itself with this interface.

Interrupts are passed on through a notifier.

A simple message structure is used to pass messages to the
protocol driver.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Jonathan Kliegman <kliegs@chromium.org>
Signed-off-by: Luigi Semenzato <semenzato@chromium.org>
Signed-off-by: Olof Johansson <olofj@chromium.org>
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/Kconfig   |   8 +++
 drivers/mfd/Makefile  |   1 +
 drivers/mfd/cros_ec.c | 189 ++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 198 insertions(+)
 create mode 100644 drivers/mfd/cros_ec.c

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index c346941a2515..a8bafb560196 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -21,6 +21,14 @@ config MFD_88PM860X
 	  select individual components like voltage regulators, RTC and
 	  battery-charger under the corresponding menus.
 
+config MFD_CROS_EC
+	tristate "Support ChromeOS Embedded Controller"
+	help
+	  If you say Y here you get support for the ChromeOS Embedded
+	  Controller (EC) providing keyboard, battery and power services.
+	  You also ned to enable the driver for the bus you are using. The
+	  protocol for talking to the EC is defined by the bus driver.
+
 config MFD_88PM800
 	tristate "Support Marvell 88PM800"
 	depends on I2C=y && GENERIC_HARDIRQS
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index b90409c23664..967767d3d759 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_MFD_88PM800)	+= 88pm800.o 88pm80x.o
 obj-$(CONFIG_MFD_88PM805)	+= 88pm805.o 88pm80x.o
 obj-$(CONFIG_MFD_SM501)		+= sm501.o
 obj-$(CONFIG_MFD_ASIC3)		+= asic3.o tmio_core.o
+obj-$(CONFIG_MFD_CROS_EC)	+= cros_ec.o
 
 rtsx_pci-objs			:= rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o
 obj-$(CONFIG_MFD_RTSX_PCI)	+= rtsx_pci.o
diff --git a/drivers/mfd/cros_ec.c b/drivers/mfd/cros_ec.c
new file mode 100644
index 000000000000..ac824ccab52a
--- /dev/null
+++ b/drivers/mfd/cros_ec.c
@@ -0,0 +1,189 @@
+/*
+ * ChromeOS EC multi-function device
+ *
+ * Copyright (C) 2012 Google, Inc
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * The ChromeOS EC multi function device is used to mux all the requests
+ * to the EC device for its multiple features: keyboard controller,
+ * battery charging and regulator control, firmware update.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/cros_ec.h>
+#include <linux/mfd/cros_ec_commands.h>
+
+int cros_ec_prepare_tx(struct cros_ec_device *ec_dev,
+		       struct cros_ec_msg *msg)
+{
+	uint8_t *out;
+	int csum, i;
+
+	BUG_ON(msg->out_len > EC_HOST_PARAM_SIZE);
+	out = ec_dev->dout;
+	out[0] = EC_CMD_VERSION0 + msg->version;
+	out[1] = msg->cmd;
+	out[2] = msg->out_len;
+	csum = out[0] + out[1] + out[2];
+	for (i = 0; i < msg->out_len; i++)
+		csum += out[EC_MSG_TX_HEADER_BYTES + i] = msg->out_buf[i];
+	out[EC_MSG_TX_HEADER_BYTES + msg->out_len] = (uint8_t)(csum & 0xff);
+
+	return EC_MSG_TX_PROTO_BYTES + msg->out_len;
+}
+
+static int cros_ec_command_sendrecv(struct cros_ec_device *ec_dev,
+		uint16_t cmd, void *out_buf, int out_len,
+		void *in_buf, int in_len)
+{
+	struct cros_ec_msg msg;
+
+	msg.version = cmd >> 8;
+	msg.cmd = cmd & 0xff;
+	msg.out_buf = out_buf;
+	msg.out_len = out_len;
+	msg.in_buf = in_buf;
+	msg.in_len = in_len;
+
+	return ec_dev->command_xfer(ec_dev, &msg);
+}
+
+static int cros_ec_command_recv(struct cros_ec_device *ec_dev,
+		uint16_t cmd, void *buf, int buf_len)
+{
+	return cros_ec_command_sendrecv(ec_dev, cmd, NULL, 0, buf, buf_len);
+}
+
+static int cros_ec_command_send(struct cros_ec_device *ec_dev,
+		uint16_t cmd, void *buf, int buf_len)
+{
+	return cros_ec_command_sendrecv(ec_dev, cmd, buf, buf_len, NULL, 0);
+}
+
+static irqreturn_t ec_irq_thread(int irq, void *data)
+{
+	struct cros_ec_device *ec_dev = data;
+
+	if (device_may_wakeup(ec_dev->dev))
+		pm_wakeup_event(ec_dev->dev, 0);
+
+	blocking_notifier_call_chain(&ec_dev->event_notifier, 1, ec_dev);
+
+	return IRQ_HANDLED;
+}
+
+static struct mfd_cell cros_devs[] = {
+	{
+		.name = "cros-ec-keyb",
+		.id = 1,
+		.of_compatible = "google,cros-ec-keyb",
+	},
+};
+
+int cros_ec_register(struct cros_ec_device *ec_dev)
+{
+	struct device *dev = ec_dev->dev;
+	int err = 0;
+
+	BLOCKING_INIT_NOTIFIER_HEAD(&ec_dev->event_notifier);
+
+	ec_dev->command_send = cros_ec_command_send;
+	ec_dev->command_recv = cros_ec_command_recv;
+	ec_dev->command_sendrecv = cros_ec_command_sendrecv;
+
+	if (ec_dev->din_size) {
+		ec_dev->din = kmalloc(ec_dev->din_size, GFP_KERNEL);
+		if (!ec_dev->din) {
+			err = -ENOMEM;
+			goto fail_din;
+		}
+	}
+	if (ec_dev->dout_size) {
+		ec_dev->dout = kmalloc(ec_dev->dout_size, GFP_KERNEL);
+		if (!ec_dev->dout) {
+			err = -ENOMEM;
+			goto fail_dout;
+		}
+	}
+
+	if (!ec_dev->irq) {
+		dev_dbg(dev, "no valid IRQ: %d\n", ec_dev->irq);
+		goto fail_irq;
+	}
+
+	err = request_threaded_irq(ec_dev->irq, NULL, ec_irq_thread,
+				   IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+				   "chromeos-ec", ec_dev);
+	if (err) {
+		dev_err(dev, "request irq %d: error %d\n", ec_dev->irq, err);
+		goto fail_irq;
+	}
+
+	err = mfd_add_devices(dev, 0, cros_devs,
+			      ARRAY_SIZE(cros_devs),
+			      NULL, ec_dev->irq, NULL);
+	if (err) {
+		dev_err(dev, "failed to add mfd devices\n");
+		goto fail_mfd;
+	}
+
+	dev_info(dev, "Chrome EC (%s)\n", ec_dev->name);
+
+	return 0;
+
+fail_mfd:
+	free_irq(ec_dev->irq, ec_dev);
+fail_irq:
+	kfree(ec_dev->dout);
+fail_dout:
+	kfree(ec_dev->din);
+fail_din:
+	return err;
+}
+
+int cros_ec_remove(struct cros_ec_device *ec_dev)
+{
+	mfd_remove_devices(ec_dev->dev);
+	free_irq(ec_dev->irq, ec_dev);
+	kfree(ec_dev->dout);
+	kfree(ec_dev->din);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+int cros_ec_suspend(struct cros_ec_device *ec_dev)
+{
+	struct device *dev = ec_dev->dev;
+
+	if (device_may_wakeup(dev))
+		ec_dev->wake_enabled = !enable_irq_wake(ec_dev->irq);
+
+	disable_irq(ec_dev->irq);
+	ec_dev->was_wake_device = ec_dev->wake_enabled;
+
+	return 0;
+}
+
+int cros_ec_resume(struct cros_ec_device *ec_dev)
+{
+	enable_irq(ec_dev->irq);
+
+	if (ec_dev->wake_enabled) {
+		disable_irq_wake(ec_dev->irq);
+		ec_dev->wake_enabled = 0;
+	}
+
+	return 0;
+}
+#endif
-- 
cgit v1.2.3


From 89969009485fa9e62814afaa438c12c45d7d2def Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Mon, 25 Feb 2013 14:08:38 -0800
Subject: mfd: Add ChromeOS EC I2C driver

This uses an I2C bus to talk to the ChromeOS EC. The protocol
is defined by the EC and is fairly simple, with a length byte,
checksum, command byte and version byte (to permit easy creation
of new commands).

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/Kconfig       |  10 +++
 drivers/mfd/Makefile      |   1 +
 drivers/mfd/cros_ec_i2c.c | 201 ++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 212 insertions(+)
 create mode 100644 drivers/mfd/cros_ec_i2c.c

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index a8bafb560196..4e54b5b01295 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -29,6 +29,16 @@ config MFD_CROS_EC
 	  You also ned to enable the driver for the bus you are using. The
 	  protocol for talking to the EC is defined by the bus driver.
 
+config MFD_CROS_EC_I2C
+	tristate "ChromeOS Embedded Controller (I2C)"
+	depends on MFD_CROS_EC && I2C
+
+	help
+	  If you say Y here, you get support for talking to the ChromeOS
+	  EC through an I2C bus. This uses a simple byte-level protocol with
+	  a checksum. Failing accesses will be retried three times to
+	  improve reliability.
+
 config MFD_88PM800
 	tristate "Support Marvell 88PM800"
 	depends on I2C=y && GENERIC_HARDIRQS
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 967767d3d759..895257bec849 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_MFD_88PM805)	+= 88pm805.o 88pm80x.o
 obj-$(CONFIG_MFD_SM501)		+= sm501.o
 obj-$(CONFIG_MFD_ASIC3)		+= asic3.o tmio_core.o
 obj-$(CONFIG_MFD_CROS_EC)	+= cros_ec.o
+obj-$(CONFIG_MFD_CROS_EC_I2C)	+= cros_ec_i2c.o
 
 rtsx_pci-objs			:= rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o
 obj-$(CONFIG_MFD_RTSX_PCI)	+= rtsx_pci.o
diff --git a/drivers/mfd/cros_ec_i2c.c b/drivers/mfd/cros_ec_i2c.c
new file mode 100644
index 000000000000..123044608b63
--- /dev/null
+++ b/drivers/mfd/cros_ec_i2c.c
@@ -0,0 +1,201 @@
+/*
+ * ChromeOS EC multi-function device (I2C)
+ *
+ * Copyright (C) 2012 Google, Inc
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/cros_ec.h>
+#include <linux/mfd/cros_ec_commands.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+static inline struct cros_ec_device *to_ec_dev(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+
+	return i2c_get_clientdata(client);
+}
+
+static int cros_ec_command_xfer(struct cros_ec_device *ec_dev,
+				struct cros_ec_msg *msg)
+{
+	struct i2c_client *client = ec_dev->priv;
+	int ret = -ENOMEM;
+	int i;
+	int packet_len;
+	u8 *out_buf = NULL;
+	u8 *in_buf = NULL;
+	u8 sum;
+	struct i2c_msg i2c_msg[2];
+
+	i2c_msg[0].addr = client->addr;
+	i2c_msg[0].flags = 0;
+	i2c_msg[1].addr = client->addr;
+	i2c_msg[1].flags = I2C_M_RD;
+
+	/*
+	 * allocate larger packet (one byte for checksum, one byte for
+	 * length, and one for result code)
+	 */
+	packet_len = msg->in_len + 3;
+	in_buf = kzalloc(packet_len, GFP_KERNEL);
+	if (!in_buf)
+		goto done;
+	i2c_msg[1].len = packet_len;
+	i2c_msg[1].buf = (char *)in_buf;
+
+	/*
+	 * allocate larger packet (one byte for checksum, one for
+	 * command code, one for length, and one for command version)
+	 */
+	packet_len = msg->out_len + 4;
+	out_buf = kzalloc(packet_len, GFP_KERNEL);
+	if (!out_buf)
+		goto done;
+	i2c_msg[0].len = packet_len;
+	i2c_msg[0].buf = (char *)out_buf;
+
+	out_buf[0] = EC_CMD_VERSION0 + msg->version;
+	out_buf[1] = msg->cmd;
+	out_buf[2] = msg->out_len;
+
+	/* copy message payload and compute checksum */
+	sum = out_buf[0] + out_buf[1] + out_buf[2];
+	for (i = 0; i < msg->out_len; i++) {
+		out_buf[3 + i] = msg->out_buf[i];
+		sum += out_buf[3 + i];
+	}
+	out_buf[3 + msg->out_len] = sum;
+
+	/* send command to EC and read answer */
+	ret = i2c_transfer(client->adapter, i2c_msg, 2);
+	if (ret < 0) {
+		dev_err(ec_dev->dev, "i2c transfer failed: %d\n", ret);
+		goto done;
+	} else if (ret != 2) {
+		dev_err(ec_dev->dev, "failed to get response: %d\n", ret);
+		ret = -EIO;
+		goto done;
+	}
+
+	/* check response error code */
+	if (i2c_msg[1].buf[0]) {
+		dev_warn(ec_dev->dev, "command 0x%02x returned an error %d\n",
+			 msg->cmd, i2c_msg[1].buf[0]);
+		ret = -EINVAL;
+		goto done;
+	}
+
+	/* copy response packet payload and compute checksum */
+	sum = in_buf[0] + in_buf[1];
+	for (i = 0; i < msg->in_len; i++) {
+		msg->in_buf[i] = in_buf[2 + i];
+		sum += in_buf[2 + i];
+	}
+	dev_dbg(ec_dev->dev, "packet: %*ph, sum = %02x\n",
+		i2c_msg[1].len, in_buf, sum);
+	if (sum != in_buf[2 + msg->in_len]) {
+		dev_err(ec_dev->dev, "bad packet checksum\n");
+		ret = -EBADMSG;
+		goto done;
+	}
+
+	ret = 0;
+ done:
+	kfree(in_buf);
+	kfree(out_buf);
+	return ret;
+}
+
+static int cros_ec_probe_i2c(struct i2c_client *client,
+			     const struct i2c_device_id *dev_id)
+{
+	struct device *dev = &client->dev;
+	struct cros_ec_device *ec_dev = NULL;
+	int err;
+
+ 	ec_dev = devm_kzalloc(dev, sizeof(*ec_dev), GFP_KERNEL);
+	if (!ec_dev)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, ec_dev);
+	ec_dev->name = "I2C";
+	ec_dev->dev = dev;
+	ec_dev->priv = client;
+	ec_dev->irq = client->irq;
+	ec_dev->command_xfer = cros_ec_command_xfer;
+	ec_dev->ec_name = client->name;
+	ec_dev->phys_name = client->adapter->name;
+	ec_dev->parent = &client->dev;
+
+	err = cros_ec_register(ec_dev);
+	if (err) {
+		dev_err(dev, "cannot register EC\n");
+		return err;
+	}
+
+	return 0;
+}
+
+static int cros_ec_remove_i2c(struct i2c_client *client)
+{
+	struct cros_ec_device *ec_dev = i2c_get_clientdata(client);
+
+	cros_ec_remove(ec_dev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int cros_ec_i2c_suspend(struct device *dev)
+{
+	struct cros_ec_device *ec_dev = to_ec_dev(dev);
+
+	return cros_ec_suspend(ec_dev);
+}
+
+static int cros_ec_i2c_resume(struct device *dev)
+{
+	struct cros_ec_device *ec_dev = to_ec_dev(dev);
+
+	return cros_ec_resume(ec_dev);
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(cros_ec_i2c_pm_ops, cros_ec_i2c_suspend,
+			  cros_ec_i2c_resume);
+
+static const struct i2c_device_id cros_ec_i2c_id[] = {
+	{ "cros-ec-i2c", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, cros_ec_i2c_id);
+
+static struct i2c_driver cros_ec_driver = {
+	.driver	= {
+		.name	= "cros-ec-i2c",
+		.owner	= THIS_MODULE,
+		.pm	= &cros_ec_i2c_pm_ops,
+	},
+	.probe		= cros_ec_probe_i2c,
+	.remove		= cros_ec_remove_i2c,
+	.id_table	= cros_ec_i2c_id,
+};
+
+module_i2c_driver(cros_ec_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ChromeOS EC multi function device");
-- 
cgit v1.2.3


From a17d94f0b6e1581391378dcb11c18ddebf6dcf8e Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Mon, 25 Feb 2013 14:08:39 -0800
Subject: mfd: Add ChromeOS EC SPI driver

This uses a SPI bus to talk to the ChromeOS EC. The protocol
is defined by the EC and is fairly simple, with a length byte,
checksum, command byte and version byte (to permit easy creation
of new commands).

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/Kconfig       |  10 ++
 drivers/mfd/Makefile      |   1 +
 drivers/mfd/cros_ec_spi.c | 375 ++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 386 insertions(+)
 create mode 100644 drivers/mfd/cros_ec_spi.c

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 4e54b5b01295..94b45476893e 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -39,6 +39,16 @@ config MFD_CROS_EC_I2C
 	  a checksum. Failing accesses will be retried three times to
 	  improve reliability.
 
+config MFD_CROS_EC_SPI
+	tristate "ChromeOS Embedded Controller (SPI)"
+	depends on MFD_CROS_EC && SPI
+
+	---help---
+	  If you say Y here, you get support for talking to the ChromeOS EC
+	  through a SPI bus, using a byte-level protocol. Since the EC's
+	  response time cannot be guaranteed, we support ignoring
+	  'pre-amble' bytes before the response actually starts.
+
 config MFD_88PM800
 	tristate "Support Marvell 88PM800"
 	depends on I2C=y && GENERIC_HARDIRQS
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 895257bec849..f62a583b5c85 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_MFD_SM501)		+= sm501.o
 obj-$(CONFIG_MFD_ASIC3)		+= asic3.o tmio_core.o
 obj-$(CONFIG_MFD_CROS_EC)	+= cros_ec.o
 obj-$(CONFIG_MFD_CROS_EC_I2C)	+= cros_ec_i2c.o
+obj-$(CONFIG_MFD_CROS_EC_SPI)	+= cros_ec_spi.o
 
 rtsx_pci-objs			:= rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o
 obj-$(CONFIG_MFD_RTSX_PCI)	+= rtsx_pci.o
diff --git a/drivers/mfd/cros_ec_spi.c b/drivers/mfd/cros_ec_spi.c
new file mode 100644
index 000000000000..da2d1b4db1b2
--- /dev/null
+++ b/drivers/mfd/cros_ec_spi.c
@@ -0,0 +1,375 @@
+/*
+ * ChromeOS EC multi-function device (SPI)
+ *
+ * Copyright (C) 2012 Google, Inc
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mfd/cros_ec.h>
+#include <linux/mfd/cros_ec_commands.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+
+
+/* The header byte, which follows the preamble */
+#define EC_MSG_HEADER			0xec
+
+/*
+ * Number of EC preamble bytes we read at a time. Since it takes
+ * about 400-500us for the EC to respond there is not a lot of
+ * point in tuning this. If the EC could respond faster then
+ * we could increase this so that might expect the preamble and
+ * message to occur in a single transaction. However, the maximum
+ * SPI transfer size is 256 bytes, so at 5MHz we need a response
+ * time of perhaps <320us (200 bytes / 1600 bits).
+ */
+#define EC_MSG_PREAMBLE_COUNT		32
+
+/*
+  * We must get a response from the EC in 5ms. This is a very long
+  * time, but the flash write command can take 2-3ms. The EC command
+  * processing is currently not very fast (about 500us). We could
+  * look at speeding this up and making the flash write command a
+  * 'slow' command, requiring a GET_STATUS wait loop, like flash
+  * erase.
+  */
+#define EC_MSG_DEADLINE_MS		5
+
+/*
+  * Time between raising the SPI chip select (for the end of a
+  * transaction) and dropping it again (for the next transaction).
+  * If we go too fast, the EC will miss the transaction. It seems
+  * that 50us is enough with the 16MHz STM32 EC.
+  */
+#define EC_SPI_RECOVERY_TIME_NS	(50 * 1000)
+
+/**
+ * struct cros_ec_spi - information about a SPI-connected EC
+ *
+ * @spi: SPI device we are connected to
+ * @last_transfer_ns: time that we last finished a transfer, or 0 if there
+ *	if no record
+ */
+struct cros_ec_spi {
+	struct spi_device *spi;
+	s64 last_transfer_ns;
+};
+
+static void debug_packet(struct device *dev, const char *name, u8 *ptr,
+			  int len)
+{
+#ifdef DEBUG
+	int i;
+
+	dev_dbg(dev, "%s: ", name);
+	for (i = 0; i < len; i++)
+		dev_cont(dev, " %02x", ptr[i]);
+#endif
+}
+
+/**
+ * cros_ec_spi_receive_response - Receive a response from the EC.
+ *
+ * This function has two phases: reading the preamble bytes (since if we read
+ * data from the EC before it is ready to send, we just get preamble) and
+ * reading the actual message.
+ *
+ * The received data is placed into ec_dev->din.
+ *
+ * @ec_dev: ChromeOS EC device
+ * @need_len: Number of message bytes we need to read
+ */
+static int cros_ec_spi_receive_response(struct cros_ec_device *ec_dev,
+					int need_len)
+{
+	struct cros_ec_spi *ec_spi = ec_dev->priv;
+	struct spi_transfer trans;
+	struct spi_message msg;
+	u8 *ptr, *end;
+	int ret;
+	unsigned long deadline;
+	int todo;
+
+	/* Receive data until we see the header byte */
+	deadline = jiffies + msecs_to_jiffies(EC_MSG_DEADLINE_MS);
+	do {
+		memset(&trans, '\0', sizeof(trans));
+		trans.cs_change = 1;
+		trans.rx_buf = ptr = ec_dev->din;
+		trans.len = EC_MSG_PREAMBLE_COUNT;
+
+		spi_message_init(&msg);
+		spi_message_add_tail(&trans, &msg);
+		ret = spi_sync(ec_spi->spi, &msg);
+		if (ret < 0) {
+			dev_err(ec_dev->dev, "spi transfer failed: %d\n", ret);
+			return ret;
+		}
+
+		for (end = ptr + EC_MSG_PREAMBLE_COUNT; ptr != end; ptr++) {
+			if (*ptr == EC_MSG_HEADER) {
+				dev_dbg(ec_dev->dev, "msg found at %d\n",
+					ptr - ec_dev->din);
+				break;
+			}
+		}
+
+		if (time_after(jiffies, deadline)) {
+			dev_warn(ec_dev->dev, "EC failed to respond in time\n");
+			return -ETIMEDOUT;
+		}
+	} while (ptr == end);
+
+	/*
+	 * ptr now points to the header byte. Copy any valid data to the
+	 * start of our buffer
+	 */
+	todo = end - ++ptr;
+	BUG_ON(todo < 0 || todo > ec_dev->din_size);
+	todo = min(todo, need_len);
+	memmove(ec_dev->din, ptr, todo);
+	ptr = ec_dev->din + todo;
+	dev_dbg(ec_dev->dev, "need %d, got %d bytes from preamble\n",
+		 need_len, todo);
+	need_len -= todo;
+
+	/* Receive data until we have it all */
+	while (need_len > 0) {
+		/*
+		 * We can't support transfers larger than the SPI FIFO size
+		 * unless we have DMA. We don't have DMA on the ISP SPI ports
+		 * for Exynos. We need a way of asking SPI driver for
+		 * maximum-supported transfer size.
+		 */
+		todo = min(need_len, 256);
+		dev_dbg(ec_dev->dev, "loop, todo=%d, need_len=%d, ptr=%d\n",
+			todo, need_len, ptr - ec_dev->din);
+
+		memset(&trans, '\0', sizeof(trans));
+		trans.cs_change = 1;
+		trans.rx_buf = ptr;
+		trans.len = todo;
+		spi_message_init(&msg);
+		spi_message_add_tail(&trans, &msg);
+
+		/* send command to EC and read answer */
+		BUG_ON((u8 *)trans.rx_buf - ec_dev->din + todo >
+				ec_dev->din_size);
+		ret = spi_sync(ec_spi->spi, &msg);
+		if (ret < 0) {
+			dev_err(ec_dev->dev, "spi transfer failed: %d\n", ret);
+			return ret;
+		}
+
+		debug_packet(ec_dev->dev, "interim", ptr, todo);
+		ptr += todo;
+		need_len -= todo;
+	}
+
+	dev_dbg(ec_dev->dev, "loop done, ptr=%d\n", ptr - ec_dev->din);
+
+	return 0;
+}
+
+/**
+ * cros_ec_command_spi_xfer - Transfer a message over SPI and receive the reply
+ *
+ * @ec_dev: ChromeOS EC device
+ * @ec_msg: Message to transfer
+ */
+static int cros_ec_command_spi_xfer(struct cros_ec_device *ec_dev,
+				    struct cros_ec_msg *ec_msg)
+{
+	struct cros_ec_spi *ec_spi = ec_dev->priv;
+	struct spi_transfer trans;
+	struct spi_message msg;
+	int i, len;
+	u8 *ptr;
+	int sum;
+	int ret = 0, final_ret;
+	struct timespec ts;
+
+	len = cros_ec_prepare_tx(ec_dev, ec_msg);
+	dev_dbg(ec_dev->dev, "prepared, len=%d\n", len);
+
+	/* If it's too soon to do another transaction, wait */
+	if (ec_spi->last_transfer_ns) {
+		struct timespec ts;
+		unsigned long delay;	/* The delay completed so far */
+
+		ktime_get_ts(&ts);
+		delay = timespec_to_ns(&ts) - ec_spi->last_transfer_ns;
+		if (delay < EC_SPI_RECOVERY_TIME_NS)
+			ndelay(delay);
+	}
+
+	/* Transmit phase - send our message */
+	debug_packet(ec_dev->dev, "out", ec_dev->dout, len);
+	memset(&trans, '\0', sizeof(trans));
+	trans.tx_buf = ec_dev->dout;
+	trans.len = len;
+	trans.cs_change = 1;
+	spi_message_init(&msg);
+	spi_message_add_tail(&trans, &msg);
+	ret = spi_sync(ec_spi->spi, &msg);
+
+	/* Get the response */
+	if (!ret) {
+		ret = cros_ec_spi_receive_response(ec_dev,
+				ec_msg->in_len + EC_MSG_TX_PROTO_BYTES);
+	} else {
+		dev_err(ec_dev->dev, "spi transfer failed: %d\n", ret);
+	}
+
+	/* turn off CS */
+	spi_message_init(&msg);
+	final_ret = spi_sync(ec_spi->spi, &msg);
+	ktime_get_ts(&ts);
+	ec_spi->last_transfer_ns = timespec_to_ns(&ts);
+	if (!ret)
+		ret = final_ret;
+	if (ret < 0) {
+		dev_err(ec_dev->dev, "spi transfer failed: %d\n", ret);
+		return ret;
+	}
+
+	/* check response error code */
+	ptr = ec_dev->din;
+	if (ptr[0]) {
+		dev_warn(ec_dev->dev, "command 0x%02x returned an error %d\n",
+			 ec_msg->cmd, ptr[0]);
+		debug_packet(ec_dev->dev, "in_err", ptr, len);
+		return -EINVAL;
+	}
+	len = ptr[1];
+	sum = ptr[0] + ptr[1];
+	if (len > ec_msg->in_len) {
+		dev_err(ec_dev->dev, "packet too long (%d bytes, expected %d)",
+			len, ec_msg->in_len);
+		return -ENOSPC;
+	}
+
+	/* copy response packet payload and compute checksum */
+	for (i = 0; i < len; i++) {
+		sum += ptr[i + 2];
+		if (ec_msg->in_len)
+			ec_msg->in_buf[i] = ptr[i + 2];
+	}
+	sum &= 0xff;
+
+	debug_packet(ec_dev->dev, "in", ptr, len + 3);
+
+	if (sum != ptr[len + 2]) {
+		dev_err(ec_dev->dev,
+			"bad packet checksum, expected %02x, got %02x\n",
+			sum, ptr[len + 2]);
+		return -EBADMSG;
+	}
+
+	return 0;
+}
+
+static int cros_ec_probe_spi(struct spi_device *spi)
+{
+	struct device *dev = &spi->dev;
+	struct cros_ec_device *ec_dev;
+	struct cros_ec_spi *ec_spi;
+	int err;
+
+	spi->bits_per_word = 8;
+	spi->mode = SPI_MODE_0;
+	err = spi_setup(spi);
+	if (err < 0)
+		return err;
+
+	ec_spi = devm_kzalloc(dev, sizeof(*ec_spi), GFP_KERNEL);
+	if (ec_spi == NULL)
+		return -ENOMEM;
+	ec_spi->spi = spi;
+	ec_dev = devm_kzalloc(dev, sizeof(*ec_dev), GFP_KERNEL);
+	if (!ec_dev)
+		return -ENOMEM;
+
+	spi_set_drvdata(spi, ec_dev);
+	ec_dev->name = "SPI";
+	ec_dev->dev = dev;
+	ec_dev->priv = ec_spi;
+	ec_dev->irq = spi->irq;
+	ec_dev->command_xfer = cros_ec_command_spi_xfer;
+	ec_dev->ec_name = ec_spi->spi->modalias;
+	ec_dev->phys_name = dev_name(&ec_spi->spi->dev);
+	ec_dev->parent = &ec_spi->spi->dev;
+	ec_dev->din_size = EC_MSG_BYTES + EC_MSG_PREAMBLE_COUNT;
+	ec_dev->dout_size = EC_MSG_BYTES;
+
+	err = cros_ec_register(ec_dev);
+	if (err) {
+		dev_err(dev, "cannot register EC\n");
+		return err;
+	}
+
+	return 0;
+}
+
+static int cros_ec_remove_spi(struct spi_device *spi)
+{
+	struct cros_ec_device *ec_dev;
+
+	ec_dev = spi_get_drvdata(spi);
+	cros_ec_remove(ec_dev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int cros_ec_spi_suspend(struct device *dev)
+{
+	struct cros_ec_device *ec_dev = dev_get_drvdata(dev);
+
+	return cros_ec_suspend(ec_dev);
+}
+
+static int cros_ec_spi_resume(struct device *dev)
+{
+	struct cros_ec_device *ec_dev = dev_get_drvdata(dev);
+
+	return cros_ec_resume(ec_dev);
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(cros_ec_spi_pm_ops, cros_ec_spi_suspend,
+			 cros_ec_spi_resume);
+
+static const struct spi_device_id cros_ec_spi_id[] = {
+	{ "cros-ec-spi", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, cros_ec_spi_id);
+
+static struct spi_driver cros_ec_driver_spi = {
+	.driver	= {
+		.name	= "cros-ec-spi",
+		.owner	= THIS_MODULE,
+		.pm	= &cros_ec_spi_pm_ops,
+	},
+	.probe		= cros_ec_probe_spi,
+	.remove		= cros_ec_remove_spi,
+	.id_table	= cros_ec_spi_id,
+};
+
+module_spi_driver(cros_ec_driver_spi);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ChromeOS EC multi function device (SPI)");
-- 
cgit v1.2.3


From 5ebeaff5c5be9f21680b91aac77ee155d935f888 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Wed, 20 Mar 2013 09:46:15 +0100
Subject: mfd: cros_ec: Export needed symbols for the i2c and spi modules

In order to fix those, when all cros code is modular:

ERROR: "cros_ec_prepare_tx" [drivers/mfd/cros_ec_spi.ko] undefined!
ERROR: "cros_ec_register" [drivers/mfd/cros_ec_spi.ko] undefined!
ERROR: "cros_ec_remove" [drivers/mfd/cros_ec_spi.ko] undefined!
ERROR: "cros_ec_suspend" [drivers/mfd/cros_ec_spi.ko] undefined!
ERROR: "cros_ec_resume" [drivers/mfd/cros_ec_spi.ko] undefined!
ERROR: "cros_ec_register" [drivers/mfd/cros_ec_i2c.ko] undefined!
ERROR: "cros_ec_remove" [drivers/mfd/cros_ec_i2c.ko] undefined!
ERROR: "cros_ec_suspend" [drivers/mfd/cros_ec_i2c.ko] undefined!
ERROR: "cros_ec_resume" [drivers/mfd/cros_ec_i2c.ko] undefined!

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/cros_ec.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/cros_ec.c b/drivers/mfd/cros_ec.c
index ac824ccab52a..10cd14e35eb0 100644
--- a/drivers/mfd/cros_ec.c
+++ b/drivers/mfd/cros_ec.c
@@ -19,6 +19,7 @@
 
 #include <linux/interrupt.h>
 #include <linux/slab.h>
+#include <linux/module.h>
 #include <linux/mfd/core.h>
 #include <linux/mfd/cros_ec.h>
 #include <linux/mfd/cros_ec_commands.h>
@@ -41,6 +42,7 @@ int cros_ec_prepare_tx(struct cros_ec_device *ec_dev,
 
 	return EC_MSG_TX_PROTO_BYTES + msg->out_len;
 }
+EXPORT_SYMBOL(cros_ec_prepare_tx);
 
 static int cros_ec_command_sendrecv(struct cros_ec_device *ec_dev,
 		uint16_t cmd, void *out_buf, int out_len,
@@ -150,6 +152,7 @@ fail_dout:
 fail_din:
 	return err;
 }
+EXPORT_SYMBOL(cros_ec_register);
 
 int cros_ec_remove(struct cros_ec_device *ec_dev)
 {
@@ -160,6 +163,7 @@ int cros_ec_remove(struct cros_ec_device *ec_dev)
 
 	return 0;
 }
+EXPORT_SYMBOL(cros_ec_remove);
 
 #ifdef CONFIG_PM_SLEEP
 int cros_ec_suspend(struct cros_ec_device *ec_dev)
@@ -174,6 +178,7 @@ int cros_ec_suspend(struct cros_ec_device *ec_dev)
 
 	return 0;
 }
+EXPORT_SYMBOL(cros_ec_suspend);
 
 int cros_ec_resume(struct cros_ec_device *ec_dev)
 {
@@ -186,4 +191,6 @@ int cros_ec_resume(struct cros_ec_device *ec_dev)
 
 	return 0;
 }
+EXPORT_SYMBOL(cros_ec_resume);
+
 #endif
-- 
cgit v1.2.3


From 5c29e47e6ac55b63c76999eb5b283a80208726c5 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Wed, 20 Mar 2013 09:49:00 +0100
Subject: mfd: cros_ec_spi: Warnings fix
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

To silent those:

 CC [M]  drivers/mfd/cros_ec_spi.o
drivers/mfd/cros_ec_spi.c: In function ‘cros_ec_spi_receive_response’:
drivers/mfd/cros_ec_spi.c:123:5: warning: format ‘%d’ expects argument of type
‘int’, but argument 4 has type ‘long int’ [-Wformat]
drivers/mfd/cros_ec_spi.c:157:3: warning: format ‘%d’ expects argument of type
‘int’, but argument 6 has type ‘long int’ [-Wformat]
drivers/mfd/cros_ec_spi.c:181:2: warning: format ‘%d’ expects argument of type
‘int’, but argument 4 has type ‘long int’ [-Wformat]

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/cros_ec_spi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/cros_ec_spi.c b/drivers/mfd/cros_ec_spi.c
index da2d1b4db1b2..19193cf1e7a1 100644
--- a/drivers/mfd/cros_ec_spi.c
+++ b/drivers/mfd/cros_ec_spi.c
@@ -120,7 +120,7 @@ static int cros_ec_spi_receive_response(struct cros_ec_device *ec_dev,
 
 		for (end = ptr + EC_MSG_PREAMBLE_COUNT; ptr != end; ptr++) {
 			if (*ptr == EC_MSG_HEADER) {
-				dev_dbg(ec_dev->dev, "msg found at %d\n",
+				dev_dbg(ec_dev->dev, "msg found at %ld\n",
 					ptr - ec_dev->din);
 				break;
 			}
@@ -154,7 +154,7 @@ static int cros_ec_spi_receive_response(struct cros_ec_device *ec_dev,
 		 * maximum-supported transfer size.
 		 */
 		todo = min(need_len, 256);
-		dev_dbg(ec_dev->dev, "loop, todo=%d, need_len=%d, ptr=%d\n",
+		dev_dbg(ec_dev->dev, "loop, todo=%d, need_len=%d, ptr=%ld\n",
 			todo, need_len, ptr - ec_dev->din);
 
 		memset(&trans, '\0', sizeof(trans));
@@ -178,7 +178,7 @@ static int cros_ec_spi_receive_response(struct cros_ec_device *ec_dev,
 		need_len -= todo;
 	}
 
-	dev_dbg(ec_dev->dev, "loop done, ptr=%d\n", ptr - ec_dev->din);
+	dev_dbg(ec_dev->dev, "loop done, ptr=%ld\n", ptr - ec_dev->din);
 
 	return 0;
 }
-- 
cgit v1.2.3


From 5a324acfce6f7f05ab2a044f7d0ece5f44e812c6 Mon Sep 17 00:00:00 2001
From: David Rientjes <rientjes@google.com>
Date: Thu, 21 Mar 2013 12:08:33 -0700
Subject: mfd: cros_ec: Add MFD_CORE dependency

CONFIG_MFD_CROS_EC requires CONFIG_MFD_CORE for a couple of functions that
are declared but not defined:

	ERROR: "mfd_remove_devices" [drivers/mfd/cros_ec.ko] undefined!
	ERROR: "mfd_add_devices" [drivers/mfd/cros_ec.ko] undefined!

Fix it by selecting CONFIG_MFD_CORE anytime CONFIG_MFD_CROS_EC is enabled.

Signed-off-by: David Rientjes <rientjes@google.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/Kconfig | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 94b45476893e..67e56dcdcbf6 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -23,6 +23,7 @@ config MFD_88PM860X
 
 config MFD_CROS_EC
 	tristate "Support ChromeOS Embedded Controller"
+	select MFD_CORE
 	help
 	  If you say Y here you get support for the ChromeOS Embedded
 	  Controller (EC) providing keyboard, battery and power services.
-- 
cgit v1.2.3


From 64710af3e2c6a223c443ff85e5db4bc4bd9174e5 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Fri, 22 Mar 2013 17:15:47 +0100
Subject: mfd: as3711: Add OF support

Add Flat Device Tree support to the AS3711 MFD driver. This patch just
allows to bind the driver to I2C devices, instantiated from the DT.
DT support for AS3711 cell drivers will be added in separate drivers.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Reviwed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 Documentation/devicetree/bindings/mfd/as3711.txt | 73 ++++++++++++++++++++++++
 drivers/mfd/as3711.c                             | 27 +++++++--
 2 files changed, 96 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mfd/as3711.txt

(limited to 'drivers/mfd')

diff --git a/Documentation/devicetree/bindings/mfd/as3711.txt b/Documentation/devicetree/bindings/mfd/as3711.txt
new file mode 100644
index 000000000000..d98cf18c721c
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/as3711.txt
@@ -0,0 +1,73 @@
+AS3711 is an I2C PMIC from Austria MicroSystems with multiple DCDC and LDO power
+supplies, a battery charger and an RTC. So far only bindings for the two stepup
+DCDC converters are defined. Other DCDC and LDO supplies are configured, using
+standard regulator properties, they must belong to a sub-node, called
+"regulators" and be called "sd1" to "sd4" and "ldo1" to "ldo8." Stepup converter
+configuration should be placed in a subnode, called "backlight."
+
+Compulsory properties:
+- compatible		: must be "ams,as3711"
+- reg			: specifies the I2C address
+
+To use the SU1 converter as a backlight source the following two properties must
+be provided:
+- su1-dev		: framebuffer phandle
+- su1-max-uA		: maximum current
+
+To use the SU2 converter as a backlight source the following two properties must
+be provided:
+- su2-dev		: framebuffer phandle
+- su1-max-uA		: maximum current
+
+Additionally one of these properties must be provided to select the type of
+feedback used:
+- su2-feedback-voltage	: voltage feedback is used
+- su2-feedback-curr1	: CURR1 input used for current feedback
+- su2-feedback-curr2	: CURR2 input used for current feedback
+- su2-feedback-curr3	: CURR3 input used for current feedback
+- su2-feedback-curr-auto: automatic current feedback selection
+
+and one of these to select the over-voltage protection pin
+- su2-fbprot-lx-sd4	: LX_SD4 is used for over-voltage protection
+- su2-fbprot-gpio2	: GPIO2 is used for over-voltage protection
+- su2-fbprot-gpio3	: GPIO3 is used for over-voltage protection
+- su2-fbprot-gpio4	: GPIO4 is used for over-voltage protection
+
+If "su2-feedback-curr-auto" is selected, one or more of the following properties
+have to be specified:
+- su2-auto-curr1	: use CURR1 input for current feedback
+- su2-auto-curr2	: use CURR2 input for current feedback
+- su2-auto-curr3	: use CURR3 input for current feedback
+
+Example:
+
+as3711@40 {
+	compatible = "ams,as3711";
+	reg = <0x40>;
+
+	regulators {
+		sd4 {
+			regulator-name = "1.215V";
+			regulator-min-microvolt = <1215000>;
+			regulator-max-microvolt = <1235000>;
+		};
+		ldo2 {
+			regulator-name = "2.8V CPU";
+			regulator-min-microvolt = <2800000>;
+			regulator-max-microvolt = <2800000>;
+			regulator-always-on;
+			regulator-boot-on;
+		};
+	};
+
+	backlight {
+		compatible = "ams,as3711-bl";
+		su2-dev = <&lcdc>;
+		su2-max-uA = <36000>;
+		su2-feedback-curr-auto;
+		su2-fbprot-gpio4;
+		su2-auto-curr1;
+		su2-auto-curr2;
+		su2-auto-curr3;
+	};
+};
diff --git a/drivers/mfd/as3711.c b/drivers/mfd/as3711.c
index e994c9691124..01e414162702 100644
--- a/drivers/mfd/as3711.c
+++ b/drivers/mfd/as3711.c
@@ -112,16 +112,34 @@ static const struct regmap_config as3711_regmap_config = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
+#ifdef CONFIG_OF
+static struct of_device_id as3711_of_match[] = {
+	{.compatible = "ams,as3711",},
+	{}
+};
+MODULE_DEVICE_TABLE(of, as3711_of_match);
+#endif
+
 static int as3711_i2c_probe(struct i2c_client *client,
 			    const struct i2c_device_id *id)
 {
 	struct as3711 *as3711;
-	struct as3711_platform_data *pdata = client->dev.platform_data;
+	struct as3711_platform_data *pdata;
 	unsigned int id1, id2;
 	int ret;
 
-	if (!pdata)
-		dev_dbg(&client->dev, "Platform data not found\n");
+	if (!client->dev.of_node) {
+		pdata = client->dev.platform_data;
+		if (!pdata)
+			dev_dbg(&client->dev, "Platform data not found\n");
+	} else {
+		pdata = devm_kzalloc(&client->dev,
+				     sizeof(*pdata), GFP_KERNEL);
+		if (!pdata) {
+			dev_err(&client->dev, "Failed to allocate pdata\n");
+			return -ENOMEM;
+		}
+	}
 
 	as3711 = devm_kzalloc(&client->dev, sizeof(struct as3711), GFP_KERNEL);
 	if (!as3711) {
@@ -193,7 +211,8 @@ static struct i2c_driver as3711_i2c_driver = {
 	.driver = {
 		   .name = "as3711",
 		   .owner = THIS_MODULE,
-		   },
+		   .of_match_table = of_match_ptr(as3711_of_match),
+	},
 	.probe = as3711_i2c_probe,
 	.remove = as3711_i2c_remove,
 	.id_table = as3711_i2c_id,
-- 
cgit v1.2.3


From 2154a2b347ca65e25ae916b9f923f0952a08e161 Mon Sep 17 00:00:00 2001
From: J Keerthy <j-keerthy@ti.com>
Date: Mon, 18 Feb 2013 10:42:44 +0530
Subject: mfd: palmas: Change the DT node property names to follow the
 convention

DT node properties should not have "_". Replacing them by "-".

Signed-off-by: J Keerthy <j-keerthy@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/palmas.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index 73bf76df1044..c01b69a5a4ee 100644
--- a/drivers/mfd/palmas.c
+++ b/drivers/mfd/palmas.c
@@ -278,20 +278,20 @@ static void palmas_dt_to_pdata(struct i2c_client *i2c,
 	int ret;
 	u32 prop;
 
-	ret = of_property_read_u32(node, "ti,mux_pad1", &prop);
+	ret = of_property_read_u32(node, "ti,mux-pad1", &prop);
 	if (!ret) {
 		pdata->mux_from_pdata = 1;
 		pdata->pad1 = prop;
 	}
 
-	ret = of_property_read_u32(node, "ti,mux_pad2", &prop);
+	ret = of_property_read_u32(node, "ti,mux-pad2", &prop);
 	if (!ret) {
 		pdata->mux_from_pdata = 1;
 		pdata->pad2 = prop;
 	}
 
 	/* The default for this register is all masked */
-	ret = of_property_read_u32(node, "ti,power_ctrl", &prop);
+	ret = of_property_read_u32(node, "ti,power-ctrl", &prop);
 	if (!ret)
 		pdata->power_ctrl = prop;
 	else
-- 
cgit v1.2.3


From ed21465a0987e5fd81d6b47349115f2dd3d8ef9c Mon Sep 17 00:00:00 2001
From: Alexander Shiyan <shc_work@mail.ru>
Date: Wed, 13 Mar 2013 21:34:19 +0400
Subject: mfd: syscon: Removed unneeded field "dev" from private driver
 structure

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/syscon.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/syscon.c b/drivers/mfd/syscon.c
index 61aea6381cdf..674af1432807 100644
--- a/drivers/mfd/syscon.c
+++ b/drivers/mfd/syscon.c
@@ -25,17 +25,15 @@
 static struct platform_driver syscon_driver;
 
 struct syscon {
-	struct device *dev;
 	void __iomem *base;
 	struct regmap *regmap;
 };
 
 static int syscon_match(struct device *dev, void *data)
 {
-	struct syscon *syscon = dev_get_drvdata(dev);
 	struct device_node *dn = data;
 
-	return (syscon->dev->of_node == dn) ? 1 : 0;
+	return (dev->of_node == dn) ? 1 : 0;
 }
 
 struct regmap *syscon_node_to_regmap(struct device_node *np)
@@ -130,7 +128,6 @@ static int syscon_probe(struct platform_device *pdev)
 		return PTR_ERR(syscon->regmap);
 	}
 
-	syscon->dev = dev;
 	platform_set_drvdata(pdev, syscon);
 
 	dev_info(dev, "syscon regmap start 0x%x end 0x%x registered\n",
-- 
cgit v1.2.3


From 5ab3a89a741fa4c331f42dec17fde59586dc59e6 Mon Sep 17 00:00:00 2001
From: Alexander Shiyan <shc_work@mail.ru>
Date: Wed, 13 Mar 2013 21:34:20 +0400
Subject: mfd: syscon: Add non-DT support

This patch allow using syscon driver from the platform data, i.e.
possibility using driver on systems without oftree support.
For search syscon device from the client drivers,
"syscon_regmap_lookup_by_pdevname" function was added.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/Kconfig        |  1 -
 drivers/mfd/syscon.c       | 75 +++++++++++++++++++++++++++-------------------
 include/linux/mfd/syscon.h |  1 +
 3 files changed, 46 insertions(+), 31 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 67e56dcdcbf6..3c50c388c78f 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1100,7 +1100,6 @@ config MFD_STA2X11
 
 config MFD_SYSCON
 	bool "System Controller Register R/W Based on Regmap"
-	depends on OF
 	select REGMAP_MMIO
 	help
 	  Select this option to enable accessing system control registers
diff --git a/drivers/mfd/syscon.c b/drivers/mfd/syscon.c
index 674af1432807..7905d36d0517 100644
--- a/drivers/mfd/syscon.c
+++ b/drivers/mfd/syscon.c
@@ -29,7 +29,7 @@ struct syscon {
 	struct regmap *regmap;
 };
 
-static int syscon_match(struct device *dev, void *data)
+static int syscon_match_node(struct device *dev, void *data)
 {
 	struct device_node *dn = data;
 
@@ -42,7 +42,7 @@ struct regmap *syscon_node_to_regmap(struct device_node *np)
 	struct device *dev;
 
 	dev = driver_find_device(&syscon_driver.driver, NULL, np,
-				 syscon_match);
+				 syscon_match_node);
 	if (!dev)
 		return ERR_PTR(-EPROBE_DEFER);
 
@@ -68,6 +68,34 @@ struct regmap *syscon_regmap_lookup_by_compatible(const char *s)
 }
 EXPORT_SYMBOL_GPL(syscon_regmap_lookup_by_compatible);
 
+static int syscon_match_pdevname(struct device *dev, void *data)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	const struct platform_device_id *id = platform_get_device_id(pdev);
+
+	if (id)
+		if (!strcmp(id->name, (const char *)data))
+			return 1;
+
+	return !strcmp(dev_name(dev), (const char *)data);
+}
+
+struct regmap *syscon_regmap_lookup_by_pdevname(const char *s)
+{
+	struct device *dev;
+	struct syscon *syscon;
+
+	dev = driver_find_device(&syscon_driver.driver, NULL, (void *)s,
+				 syscon_match_pdevname);
+	if (!dev)
+		return ERR_PTR(-EPROBE_DEFER);
+
+	syscon = dev_get_drvdata(dev);
+
+	return syscon->regmap;
+}
+EXPORT_SYMBOL_GPL(syscon_regmap_lookup_by_pdevname);
+
 struct regmap *syscon_regmap_lookup_by_phandle(struct device_node *np,
 					const char *property)
 {
@@ -99,28 +127,22 @@ static struct regmap_config syscon_regmap_config = {
 static int syscon_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct device_node *np = dev->of_node;
 	struct syscon *syscon;
-	struct resource res;
-	int ret;
-
-	if (!np)
-		return -ENOENT;
+	struct resource *res;
 
-	syscon = devm_kzalloc(dev, sizeof(struct syscon),
-			    GFP_KERNEL);
+	syscon = devm_kzalloc(dev, sizeof(*syscon), GFP_KERNEL);
 	if (!syscon)
 		return -ENOMEM;
 
-	syscon->base = of_iomap(np, 0);
-	if (!syscon->base)
-		return -EADDRNOTAVAIL;
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -ENOENT;
 
-	ret = of_address_to_resource(np, 0, &res);
-	if (ret)
-		return ret;
+	syscon->base = devm_ioremap(dev, res->start, resource_size(res));
+	if (!syscon->base)
+		return -ENOMEM;
 
-	syscon_regmap_config.max_register = res.end - res.start - 3;
+	syscon_regmap_config.max_register = res->end - res->start - 3;
 	syscon->regmap = devm_regmap_init_mmio(dev, syscon->base,
 					&syscon_regmap_config);
 	if (IS_ERR(syscon->regmap)) {
@@ -130,22 +152,15 @@ static int syscon_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, syscon);
 
-	dev_info(dev, "syscon regmap start 0x%x end 0x%x registered\n",
-		res.start, res.end);
+	dev_info(dev, "regmap 0x%x-0x%x registered\n", res->start, res->end);
 
 	return 0;
 }
 
-static int syscon_remove(struct platform_device *pdev)
-{
-	struct syscon *syscon;
-
-	syscon = platform_get_drvdata(pdev);
-	iounmap(syscon->base);
-	platform_set_drvdata(pdev, NULL);
-
-	return 0;
-}
+static const struct platform_device_id syscon_ids[] = {
+	{ "syscon", },
+	{ }
+};
 
 static struct platform_driver syscon_driver = {
 	.driver = {
@@ -154,7 +169,7 @@ static struct platform_driver syscon_driver = {
 		.of_match_table = of_syscon_match,
 	},
 	.probe		= syscon_probe,
-	.remove		= syscon_remove,
+	.id_table	= syscon_ids,
 };
 
 static int __init syscon_init(void)
diff --git a/include/linux/mfd/syscon.h b/include/linux/mfd/syscon.h
index 6aeb6b8da64d..5c9ee6ee7960 100644
--- a/include/linux/mfd/syscon.h
+++ b/include/linux/mfd/syscon.h
@@ -17,6 +17,7 @@
 
 extern struct regmap *syscon_node_to_regmap(struct device_node *np);
 extern struct regmap *syscon_regmap_lookup_by_compatible(const char *s);
+extern struct regmap *syscon_regmap_lookup_by_pdevname(const char *s);
 extern struct regmap *syscon_regmap_lookup_by_phandle(
 					struct device_node *np,
 					const char *property);
-- 
cgit v1.2.3


From a200e320f7ba7daa42e5fae3a1c67ed2f704b05c Mon Sep 17 00:00:00 2001
From: Gabriel Fernandez <gabriel.fernandez@stericsson.com>
Date: Fri, 1 Mar 2013 13:07:16 +0100
Subject: mfd: stmpe: DT: Enable no-irq mode configuration

If there is no interrupt property into stmpe node
then activate the no-irq mode by setting the irq
value to -1.

Cc: devicetree-discuss@lists.ozlabs.org
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/stmpe.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c
index 4b11202061be..e550dcb1d394 100644
--- a/drivers/mfd/stmpe.c
+++ b/drivers/mfd/stmpe.c
@@ -1057,6 +1057,9 @@ int stmpe_probe(struct stmpe_client_info *ci, int partnum)
 			return -ENOMEM;
 
 		stmpe_of_probe(pdata, np);
+
+		if (of_find_property(np, "interrupts", NULL) == NULL)
+			ci->irq = -1;
 	}
 
 	stmpe = devm_kzalloc(ci->dev, sizeof(struct stmpe), GFP_KERNEL);
-- 
cgit v1.2.3


From 408a3fa867be13844af13bcbba25e70232fd99e5 Mon Sep 17 00:00:00 2001
From: Gabriel Fernandez <gabriel.fernandez@stericsson.com>
Date: Fri, 1 Mar 2013 13:07:26 +0100
Subject: mfd: stmpe: DT: Add stmpe-i2c dt alias to get id device

This patch augments the STMP driver to read the device id
from the stmpe-i2c dt alias if present.

Cc: devicetree-discuss@lists.ozlabs.org
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/stmpe.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c
index e550dcb1d394..bc8587777993 100644
--- a/drivers/mfd/stmpe.c
+++ b/drivers/mfd/stmpe.c
@@ -1015,7 +1015,10 @@ void stmpe_of_probe(struct stmpe_platform_data *pdata, struct device_node *np)
 {
 	struct device_node *child;
 
-	pdata->id = -1;
+	pdata->id = of_alias_get_id(np, "stmpe-i2c");
+	if (pdata->id < 0)
+		pdata->id = -1;
+
 	pdata->irq_trigger = IRQF_TRIGGER_NONE;
 
 	of_property_read_u32(np, "st,autosleep-timeout",
-- 
cgit v1.2.3


From bbc48c6aaab9cff03e6e966bf752c3b7ad91d16a Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 5 Mar 2013 13:47:06 +0900
Subject: mfd: ab3100-otp: use module_platform_driver_probe()

This patch uses module_platform_driver_probe() macro which makes
the code smaller and simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/ab3100-otp.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/ab3100-otp.c b/drivers/mfd/ab3100-otp.c
index 8440010eb2b8..d7ce016029fa 100644
--- a/drivers/mfd/ab3100-otp.c
+++ b/drivers/mfd/ab3100-otp.c
@@ -248,19 +248,7 @@ static struct platform_driver ab3100_otp_driver = {
 	.remove	 = __exit_p(ab3100_otp_remove),
 };
 
-static int __init ab3100_otp_init(void)
-{
-	return platform_driver_probe(&ab3100_otp_driver,
-				     ab3100_otp_probe);
-}
-
-static void __exit ab3100_otp_exit(void)
-{
-	platform_driver_unregister(&ab3100_otp_driver);
-}
-
-module_init(ab3100_otp_init);
-module_exit(ab3100_otp_exit);
+module_platform_driver_probe(ab3100_otp_driver, ab3100_otp_probe);
 
 MODULE_AUTHOR("Linus Walleij <linus.walleij@stericsson.com>");
 MODULE_DESCRIPTION("AB3100 OTP Readout Driver");
-- 
cgit v1.2.3


From e8fe6a827939cf723a3871ff455f6346337c649a Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 5 Mar 2013 13:47:59 +0900
Subject: mfd: htc-pasic3: use module_platform_driver_probe()

This patch uses module_platform_driver_probe() macro which makes
the code smaller and simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/htc-pasic3.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/htc-pasic3.c b/drivers/mfd/htc-pasic3.c
index 9e5453d21a68..0285fceb99a6 100644
--- a/drivers/mfd/htc-pasic3.c
+++ b/drivers/mfd/htc-pasic3.c
@@ -208,18 +208,7 @@ static struct platform_driver pasic3_driver = {
 	.remove		= pasic3_remove,
 };
 
-static int __init pasic3_base_init(void)
-{
-	return platform_driver_probe(&pasic3_driver, pasic3_probe);
-}
-
-static void __exit pasic3_base_exit(void)
-{
-	platform_driver_unregister(&pasic3_driver);
-}
-
-module_init(pasic3_base_init);
-module_exit(pasic3_base_exit);
+module_platform_driver_probe(pasic3_driver, pasic3_probe);
 
 MODULE_AUTHOR("Philipp Zabel <philipp.zabel@gmail.com>");
 MODULE_DESCRIPTION("Core driver for HTC PASIC3");
-- 
cgit v1.2.3


From 3de764d4aa40109806cf7f9a9d811b970ff49374 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 5 Mar 2013 13:48:28 +0900
Subject: mfd: davinci_voicecodec: use module_platform_driver_probe()

This patch uses module_platform_driver_probe() macro which makes
the code smaller and simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/davinci_voicecodec.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/davinci_voicecodec.c b/drivers/mfd/davinci_voicecodec.c
index c0bcc872af4e..c60ab0c3c4db 100644
--- a/drivers/mfd/davinci_voicecodec.c
+++ b/drivers/mfd/davinci_voicecodec.c
@@ -177,17 +177,7 @@ static struct platform_driver davinci_vc_driver = {
 	.remove	= davinci_vc_remove,
 };
 
-static int __init davinci_vc_init(void)
-{
-	return platform_driver_probe(&davinci_vc_driver, davinci_vc_probe);
-}
-module_init(davinci_vc_init);
-
-static void __exit davinci_vc_exit(void)
-{
-	platform_driver_unregister(&davinci_vc_driver);
-}
-module_exit(davinci_vc_exit);
+module_platform_driver_probe(davinci_vc_driver, davinci_vc_probe);
 
 MODULE_AUTHOR("Miguel Aguilar");
 MODULE_DESCRIPTION("Texas Instruments DaVinci Voice Codec Core Interface");
-- 
cgit v1.2.3


From 58eb893da99815ebdeee6cb3eeac897b99a246f7 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Thu, 14 Mar 2013 15:54:24 +0100
Subject: mfd: abx500: Move the AB8500 Kconfig fragment

Move the AB8500 Kconfig fragment below the AB3100 so the
menuconfig menu gets hierarchically nested and looks nice.
Having the EZX PCAP in the middle disturbs the nice
hierarchical layout from kconfig.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/Kconfig | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 3c50c388c78f..d5b9b051ef15 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -877,13 +877,6 @@ config AB3100_OTP
 	  programmable memory) support. This exposes a sysfs file to read
 	  out OTP values.
 
-config EZX_PCAP
-	bool "PCAP Support"
-	depends on GENERIC_HARDIRQS && SPI_MASTER
-	help
-	  This enables the PCAP ASIC present on EZX Phones. This is
-	  needed for MMC, TouchScreen, Sound, USB, etc..
-
 config AB8500_CORE
 	bool "ST-Ericsson AB8500 Mixed Signal Power Management chip"
 	depends on GENERIC_HARDIRQS && ABX500_CORE && MFD_DB8500_PRCMU
@@ -912,6 +905,13 @@ config AB8500_GPADC
 	help
 	  AB8500 GPADC driver used to convert Acc and battery/ac/usb voltage
 
+config EZX_PCAP
+	bool "PCAP Support"
+	depends on GENERIC_HARDIRQS && SPI_MASTER
+	help
+	  This enables the PCAP ASIC present on EZX Phones. This is
+	  needed for MMC, TouchScreen, Sound, USB, etc..
+
 config MFD_DB8500_PRCMU
 	bool "ST-Ericsson DB8500 Power Reset Control Management Unit"
 	depends on UX500_SOC_DB8500
-- 
cgit v1.2.3


From 9d66b568a215fe2da2a9db736ebf9b8d66082d88 Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jslaby@suse.cz>
Date: Thu, 4 Apr 2013 21:34:11 +0200
Subject: MFD: rtsx_pcr: Fix probe fail path

When rtsx_pci_acquire_irq fails in rtsx_pci_probe, we forget to
disable an MSI (if we enabled it). This results in this warning on the
next attempt to load the module:
WARNING: at drivers/pci/msi.c:834 pci_enable_msi_block+0x2a4/0x2b0()
Hardware name: HP EliteBook 840 G1
Modules linked in: rtsx_pci(+) ...
Pid: 4056, comm: modprobe Tainted: G          I  3.8.0-9405-gd895cb1-1-vanilla #1
Call Trace:
 [<ffffffff81045c6a>] warn_slowpath_common+0x7a/0xc0
 [<ffffffff81045cc5>] warn_slowpath_null+0x15/0x20
 [<ffffffff81302544>] pci_enable_msi_block+0x2a4/0x2b0
 [<ffffffffa05e335a>] rtsx_pci_probe+0x55a/0x720 [rtsx_pci]
...

So properly disable MSI in that case.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/rtsx_pcr.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c
index 2f12cc13489a..578a1136b6dc 100644
--- a/drivers/mfd/rtsx_pcr.c
+++ b/drivers/mfd/rtsx_pcr.c
@@ -1138,7 +1138,7 @@ static int rtsx_pci_probe(struct pci_dev *pcidev,
 
 	ret = rtsx_pci_acquire_irq(pcr);
 	if (ret < 0)
-		goto free_dma;
+		goto disable_msi;
 
 	pci_set_master(pcidev);
 	synchronize_irq(pcr->irq);
@@ -1162,7 +1162,9 @@ static int rtsx_pci_probe(struct pci_dev *pcidev,
 
 disable_irq:
 	free_irq(pcr->irq, (void *)pcr);
-free_dma:
+disable_msi:
+	if (pcr->msi_en)
+		pci_disable_msi(pcr->pci);
 	dma_free_coherent(&(pcr->pci->dev), RTSX_RESV_BUF_LEN,
 			pcr->rtsx_resv_buf, pcr->rtsx_resv_buf_addr);
 unmap:
-- 
cgit v1.2.3


From 099bb952b064aebd76b30ca25b51ff6440663195 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 15 Mar 2013 17:10:28 +0530
Subject: mfd: adp5520: Use module_i2c_driver()

module_i2c_driver() removes some boilerplate and makes the code
simple.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/adp5520.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/adp5520.c b/drivers/mfd/adp5520.c
index 210dd038bb5a..5ab021f4f6df 100644
--- a/drivers/mfd/adp5520.c
+++ b/drivers/mfd/adp5520.c
@@ -360,17 +360,7 @@ static struct i2c_driver adp5520_driver = {
 	.id_table 	= adp5520_id,
 };
 
-static int __init adp5520_init(void)
-{
-	return i2c_add_driver(&adp5520_driver);
-}
-module_init(adp5520_init);
-
-static void __exit adp5520_exit(void)
-{
-	i2c_del_driver(&adp5520_driver);
-}
-module_exit(adp5520_exit);
+module_i2c_driver(adp5520_driver);
 
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("ADP5520(01) PMIC-MFD Driver");
-- 
cgit v1.2.3


From d1ac2c092d9dbd5ef2b903eea77629929c3314f2 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 26 Mar 2013 10:13:36 +0530
Subject: mfd: max77686: Use NULL instead of 0

'data' is a pointer and hence use NULL instead of 0.
Silences the following warning:
drivers/mfd/max77686.c:49:50: warning: Using plain integer as NULL pointer

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/max77686.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/max77686.c b/drivers/mfd/max77686.c
index 4d73963cd8f0..1cbb17609c8b 100644
--- a/drivers/mfd/max77686.c
+++ b/drivers/mfd/max77686.c
@@ -46,7 +46,7 @@ static struct regmap_config max77686_regmap_config = {
 
 #ifdef CONFIG_OF
 static struct of_device_id max77686_pmic_dt_match[] = {
-	{.compatible = "maxim,max77686",        .data = 0},
+	{.compatible = "maxim,max77686", .data = NULL},
 	{},
 };
 
-- 
cgit v1.2.3


From 222bc784dcdc62d9402c580502d579914dbf07bc Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 20 Feb 2013 11:53:36 +0900
Subject: mfd: wm8994: Silence bogus warning in wm8994_device_init()

'patch_regs' cannot be used uninitialized in wm8994_device_init(),
because 'patch_regs' was already guarded by 'regmap_patch'.
Thus, that's a bogus warning.

Without this patch, the build warning happens as below:

drivers/mfd/wm8994-core.c: In function 'wm8994_i2c_probe':
drivers/mfd/wm8994-core.c:595:7: warning: 'patch_regs' may be used uninitialized in this function [-Wuninitialized]
drivers/mfd/wm8994-core.c:408:14: note: 'patch_regs' was declared here

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/wm8994-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index 803e93fae56a..97e929e76810 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -405,7 +405,7 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq)
 	struct regmap_config *regmap_config;
 	const struct reg_default *regmap_patch = NULL;
 	const char *devname;
-	int ret, i, patch_regs;
+	int ret, i, patch_regs = 0;
 	int pulls = 0;
 
 	if (dev_get_platdata(wm8994->dev)) {
-- 
cgit v1.2.3


From 1816cb3409f1f6909e25e52effc57857803c678c Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Thu, 17 Jan 2013 16:54:18 +0900
Subject: mfd: arizona: Disable all wake sources by default

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/arizona-irq.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c
index 2bec5f0db3ee..846262c59049 100644
--- a/drivers/mfd/arizona-irq.c
+++ b/drivers/mfd/arizona-irq.c
@@ -192,6 +192,9 @@ int arizona_irq_init(struct arizona *arizona)
 		return -EINVAL;
 	}
 
+	/* Disable all wake sources by default */
+	regmap_write(arizona->regmap, ARIZONA_WAKE_CONTROL, 0);
+
 	if (arizona->pdata.irq_active_high) {
 		ret = regmap_update_bits(arizona->regmap, ARIZONA_IRQ_CTRL_1,
 					 ARIZONA_IRQ_POL, 0);
-- 
cgit v1.2.3


From 4816bd1c6d5589135523b4263be2e1b8b8c97599 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Mon, 14 Jan 2013 15:50:38 +0900
Subject: mfd: arizona: Clean up on failed runtime resume

Make sure that we don't leave the device enabled needlessly.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/arizona-core.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index b562c7bf8a46..0962c558dc02 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -235,18 +235,21 @@ static int arizona_runtime_resume(struct device *dev)
 
 	ret = arizona_wait_for_boot(arizona);
 	if (ret != 0) {
-		regulator_disable(arizona->dcvdd);
-		return ret;
+		goto err;
 	}
 
 	ret = regcache_sync(arizona->regmap);
 	if (ret != 0) {
 		dev_err(arizona->dev, "Failed to restore register cache\n");
-		regulator_disable(arizona->dcvdd);
-		return ret;
+		goto err;
 	}
 
 	return 0;
+
+err:
+	regcache_cache_only(arizona->regmap, true);
+	regulator_disable(arizona->dcvdd);
+	return ret;
 }
 
 static int arizona_runtime_suspend(struct device *dev)
-- 
cgit v1.2.3


From 7994c664bdf365124a920457f9c3c9c111f89bcf Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Tue, 19 Mar 2013 09:51:14 +0000
Subject: mfd: arizona: Clarify error message for failed primary IRQ request

regmap has a very similar looking error, help identify where the error
comes from by changing the error message.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/arizona-irq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c
index 846262c59049..0aa39e2eb008 100644
--- a/drivers/mfd/arizona-irq.c
+++ b/drivers/mfd/arizona-irq.c
@@ -264,7 +264,7 @@ int arizona_irq_init(struct arizona *arizona)
 				   flags, "arizona", arizona);
 
 	if (ret != 0) {
-		dev_err(arizona->dev, "Failed to request IRQ %d: %d\n",
+		dev_err(arizona->dev, "Failed to request primary IRQ %d: %d\n",
 			arizona->irq, ret);
 		goto err_main_irq;
 	}
-- 
cgit v1.2.3


From f8a0941f1bbdbaa68441142675986501b48da8f5 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Fri, 22 Mar 2013 12:59:33 +0100
Subject: mfd: arizona: Basic support for edge triggered IRQs

Allow the user to configure edge triggered IRQs, though we do not yet
fully handle new interrupts occurring while an interrupt is being handled.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 arch/arm/mach-s3c64xx/mach-crag6410-module.c |  4 ++--
 drivers/mfd/arizona-irq.c                    | 12 +++++++-----
 include/linux/mfd/arizona/pdata.h            |  3 ++-
 3 files changed, 11 insertions(+), 8 deletions(-)

(limited to 'drivers/mfd')

diff --git a/arch/arm/mach-s3c64xx/mach-crag6410-module.c b/arch/arm/mach-s3c64xx/mach-crag6410-module.c
index bf3d1c09b085..40b0e75b1ecc 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410-module.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410-module.c
@@ -208,7 +208,7 @@ static const struct i2c_board_info wm1277_devs[] = {
 static struct arizona_pdata wm5102_reva_pdata = {
 	.ldoena = S3C64XX_GPN(7),
 	.gpio_base = CODEC_GPIO_BASE,
-	.irq_active_high = true,
+	.irq_flags = IRQF_TRIGGER_HIGH,
 	.micd_pol_gpio = CODEC_GPIO_BASE + 4,
 	.gpio_defaults = {
 		[2] = 0x10000, /* AIF3TXLRCLK */
@@ -237,7 +237,7 @@ static struct spi_board_info wm5102_reva_spi_devs[] = {
 static struct arizona_pdata wm5102_pdata = {
 	.ldoena = S3C64XX_GPN(7),
 	.gpio_base = CODEC_GPIO_BASE,
-	.irq_active_high = true,
+	.irq_flags = IRQF_TRIGGER_HIGH,
 	.micd_pol_gpio = CODEC_GPIO_BASE + 2,
 	.gpio_defaults = {
 		[2] = 0x10000, /* AIF3TXLRCLK */
diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c
index 0aa39e2eb008..aa25468d24aa 100644
--- a/drivers/mfd/arizona-irq.c
+++ b/drivers/mfd/arizona-irq.c
@@ -195,7 +195,11 @@ int arizona_irq_init(struct arizona *arizona)
 	/* Disable all wake sources by default */
 	regmap_write(arizona->regmap, ARIZONA_WAKE_CONTROL, 0);
 
-	if (arizona->pdata.irq_active_high) {
+	if (!arizona->pdata.irq_flags)
+		arizona->pdata.irq_flags = IRQF_TRIGGER_LOW;
+
+	if (arizona->pdata.irq_flags & (IRQF_TRIGGER_HIGH |
+					IRQF_TRIGGER_RISING)) {
 		ret = regmap_update_bits(arizona->regmap, ARIZONA_IRQ_CTRL_1,
 					 ARIZONA_IRQ_POL, 0);
 		if (ret != 0) {
@@ -203,12 +207,10 @@ int arizona_irq_init(struct arizona *arizona)
 				ret);
 			goto err;
 		}
-
-		flags |= IRQF_TRIGGER_HIGH;
-	} else {
-		flags |= IRQF_TRIGGER_LOW;
 	}
 
+	flags |= arizona->pdata.irq_flags;
+
 	/* Allocate a virtual IRQ domain to distribute to the regmap domains */
 	arizona->virq = irq_domain_add_linear(NULL, 2, &arizona_domain_ops,
 					      arizona);
diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h
index 455c51d22d6b..84fefede3a23 100644
--- a/include/linux/mfd/arizona/pdata.h
+++ b/include/linux/mfd/arizona/pdata.h
@@ -99,7 +99,8 @@ struct arizona_pdata {
 	/** If a direct 32kHz clock is provided on an MCLK specify it here */
 	int clk32k_src;
 
-	bool irq_active_high; /** IRQ polarity */
+	/** Mode for primary IRQ (defaults to active low) */
+	unsigned int irq_flags;
 
 	/* Base GPIO */
 	int gpio_base;
-- 
cgit v1.2.3


From 3092f8050eccce8463afe771f0910634a433e24b Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Sun, 24 Mar 2013 23:05:58 +0000
Subject: mfd: arizona: Allow GPIO to be specified for IRQ line

If a GPIO is specified for the chip IRQ line then request it. This
improves support for systems that do not put pins into input mode when
used as interrupts.

Also use this GPIO when the primary IRQ is in edge triggered mode to
detect if we have handled pending interrupts in order to improve
robustness.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/arizona-irq.c         | 66 +++++++++++++++++++++++++++++++--------
 include/linux/mfd/arizona/pdata.h |  3 ++
 2 files changed, 56 insertions(+), 13 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c
index aa25468d24aa..f761cc119c01 100644
--- a/drivers/mfd/arizona-irq.c
+++ b/drivers/mfd/arizona-irq.c
@@ -94,6 +94,7 @@ static irqreturn_t arizona_ctrlif_err(int irq, void *data)
 static irqreturn_t arizona_irq_thread(int irq, void *data)
 {
 	struct arizona *arizona = data;
+	bool poll;
 	unsigned int val;
 	int ret;
 
@@ -103,20 +104,39 @@ static irqreturn_t arizona_irq_thread(int irq, void *data)
 		return IRQ_NONE;
 	}
 
-	/* Always handle the AoD domain */
-	handle_nested_irq(irq_find_mapping(arizona->virq, 0));
+	do {
+		poll = false;
+
+		/* Always handle the AoD domain */
+		handle_nested_irq(irq_find_mapping(arizona->virq, 0));
+
+		/*
+		 * Check if one of the main interrupts is asserted and only
+		 * check that domain if it is.
+		 */
+		ret = regmap_read(arizona->regmap, ARIZONA_IRQ_PIN_STATUS,
+				  &val);
+		if (ret == 0 && val & ARIZONA_IRQ1_STS) {
+			handle_nested_irq(irq_find_mapping(arizona->virq, 1));
+		} else if (ret != 0) {
+			dev_err(arizona->dev,
+				"Failed to read main IRQ status: %d\n", ret);
+		}
 
-	/*
-	 * Check if one of the main interrupts is asserted and only
-	 * check that domain if it is.
-	 */
-	ret = regmap_read(arizona->regmap, ARIZONA_IRQ_PIN_STATUS, &val);
-	if (ret == 0 && val & ARIZONA_IRQ1_STS) {
-		handle_nested_irq(irq_find_mapping(arizona->virq, 1));
-	} else if (ret != 0) {
-		dev_err(arizona->dev, "Failed to read main IRQ status: %d\n",
-			ret);
-	}
+		/*
+		 * Poll the IRQ pin status to see if we're really done
+		 * if the interrupt controller can't do it for us.
+		 */
+		if (!arizona->pdata.irq_gpio) {
+			break;
+		} else if (arizona->pdata.irq_flags & IRQF_TRIGGER_RISING &&
+			   gpio_get_value_cansleep(arizona->pdata.irq_gpio)) {
+			poll = true;
+		} else if (arizona->pdata.irq_flags & IRQF_TRIGGER_FALLING &&
+			   !gpio_get_value_cansleep(arizona->pdata.irq_gpio)) {
+			poll = true;
+		}
+	} while (poll);
 
 	pm_runtime_mark_last_busy(arizona->dev);
 	pm_runtime_put_autosuspend(arizona->dev);
@@ -262,6 +282,26 @@ int arizona_irq_init(struct arizona *arizona)
 		}
 	}
 
+	/* Used to emulate edge trigger and to work around broken pinmux */
+	if (arizona->pdata.irq_gpio) {
+		if (gpio_to_irq(arizona->pdata.irq_gpio) != arizona->irq) {
+			dev_warn(arizona->dev, "IRQ %d is not GPIO %d (%d)\n",
+				 arizona->irq, arizona->pdata.irq_gpio,
+				 gpio_to_irq(arizona->pdata.irq_gpio));
+			arizona->irq = gpio_to_irq(arizona->pdata.irq_gpio);
+		}
+
+		ret = devm_gpio_request_one(arizona->dev,
+					    arizona->pdata.irq_gpio,
+					    GPIOF_IN, "arizona IRQ");
+		if (ret != 0) {
+			dev_err(arizona->dev,
+				"Failed to request IRQ GPIO %d:: %d\n",
+				arizona->pdata.irq_gpio, ret);
+			arizona->pdata.irq_gpio = 0;
+		}
+	}
+
 	ret = request_threaded_irq(arizona->irq, NULL, arizona_irq_thread,
 				   flags, "arizona", arizona);
 
diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h
index 84fefede3a23..8755dd05ab78 100644
--- a/include/linux/mfd/arizona/pdata.h
+++ b/include/linux/mfd/arizona/pdata.h
@@ -163,6 +163,9 @@ struct arizona_pdata {
 
 	/** Haptic actuator type */
 	unsigned int hap_act;
+
+	/** GPIO for primary IRQ (used for edge triggered emulation) */
+	int irq_gpio;
 };
 
 #endif
-- 
cgit v1.2.3


From 22c75fe7c772c4c47df47364d9e807dcf204d7c2 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Sun, 24 Mar 2013 23:16:56 +0000
Subject: mfd: arizona: Try to use interrupt flags from interrupt controller

If no irq_flags are passed in platform data then query the interrupt
controller for the trigger type and try to use that. This provides
default operation with a wider range of hardware and will be needed
for device tree support where the interrupt flags are configured on
the interrupt controller.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/arizona-irq.c | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c
index f761cc119c01..64cd9b6dac92 100644
--- a/drivers/mfd/arizona-irq.c
+++ b/drivers/mfd/arizona-irq.c
@@ -189,6 +189,7 @@ int arizona_irq_init(struct arizona *arizona)
 	int ret, i;
 	const struct regmap_irq_chip *aod, *irq;
 	bool ctrlif_error = true;
+	struct irq_data *irq_data;
 
 	switch (arizona->type) {
 #ifdef CONFIG_MFD_WM5102
@@ -215,8 +216,30 @@ int arizona_irq_init(struct arizona *arizona)
 	/* Disable all wake sources by default */
 	regmap_write(arizona->regmap, ARIZONA_WAKE_CONTROL, 0);
 
-	if (!arizona->pdata.irq_flags)
-		arizona->pdata.irq_flags = IRQF_TRIGGER_LOW;
+	/* Read the flags from the interrupt controller if not specified */
+	if (!arizona->pdata.irq_flags) {
+		irq_data = irq_get_irq_data(arizona->irq);
+		if (!irq_data) {
+			dev_err(arizona->dev, "Invalid IRQ: %d\n",
+				arizona->irq);
+			return -EINVAL;
+		}
+
+		arizona->pdata.irq_flags = irqd_get_trigger_type(irq_data);
+		switch (arizona->pdata.irq_flags) {
+		case IRQF_TRIGGER_LOW:
+		case IRQF_TRIGGER_HIGH:
+		case IRQF_TRIGGER_RISING:
+		case IRQF_TRIGGER_FALLING:
+			break;
+
+		case IRQ_TYPE_NONE:
+		default:
+			/* Device default */
+			arizona->pdata.irq_flags = IRQF_TRIGGER_LOW;
+			break;
+		}
+	}
 
 	if (arizona->pdata.irq_flags & (IRQF_TRIGGER_HIGH |
 					IRQF_TRIGGER_RISING)) {
-- 
cgit v1.2.3


From 544c7aadd7d4309ed01fcd787d393db67eb7eaea Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Tue, 29 Jan 2013 18:44:41 +0800
Subject: mfd: arizona: Support configuring MICBIASes into bypass mode

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/arizona-core.c        | 12 +++++++++++-
 include/linux/mfd/arizona/pdata.h |  1 +
 2 files changed, 12 insertions(+), 1 deletion(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 0962c558dc02..dd679e8601da 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -514,10 +514,16 @@ int arizona_dev_init(struct arizona *arizona)
 	}
 
 	for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
-		if (!arizona->pdata.micbias[i].mV)
+		if (!arizona->pdata.micbias[i].mV &&
+		    !arizona->pdata.micbias[i].bypass)
 			continue;
 
+		/* Apply default for bypass mode */
+		if (!arizona->pdata.micbias[i].mV)
+			arizona->pdata.micbias[i].mV = 2800;
+
 		val = (arizona->pdata.micbias[i].mV - 1500) / 100;
+
 		val <<= ARIZONA_MICB1_LVL_SHIFT;
 
 		if (arizona->pdata.micbias[i].ext_cap)
@@ -529,10 +535,14 @@ int arizona_dev_init(struct arizona *arizona)
 		if (arizona->pdata.micbias[i].fast_start)
 			val |= ARIZONA_MICB1_RATE;
 
+		if (arizona->pdata.micbias[i].bypass)
+			val |= ARIZONA_MICB1_BYPASS;
+
 		regmap_update_bits(arizona->regmap,
 				   ARIZONA_MIC_BIAS_CTRL_1 + i,
 				   ARIZONA_MICB1_LVL_MASK |
 				   ARIZONA_MICB1_DISCH |
+				   ARIZONA_MICB1_BYPASS |
 				   ARIZONA_MICB1_RATE, val);
 	}
 
diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h
index 8755dd05ab78..554d903cdf41 100644
--- a/include/linux/mfd/arizona/pdata.h
+++ b/include/linux/mfd/arizona/pdata.h
@@ -78,6 +78,7 @@ struct arizona_micbias {
 	unsigned int ext_cap:1;    /** External capacitor fitted */
 	unsigned int discharge:1;  /** Actively discharge */
 	unsigned int fast_start:1; /** Enable aggressive startup ramp rate */
+	unsigned int bypass:1;     /** Use bypass mode */
 };
 
 struct arizona_micd_config {
-- 
cgit v1.2.3


From 7adafc5d97c0e23f1eac1cf1ee98d514026e7915 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Tue, 8 Jan 2013 10:37:06 +0000
Subject: mfd: wm5102: Update patch for latest evaluation

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/wm5102-tables.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c
index a433f580aa4c..909e043edb6a 100644
--- a/drivers/mfd/wm5102-tables.c
+++ b/drivers/mfd/wm5102-tables.c
@@ -57,15 +57,20 @@ static const struct reg_default wm5102_reva_patch[] = {
 };
 
 static const struct reg_default wm5102_revb_patch[] = {
+	{ 0x19, 0x0001 },
 	{ 0x80, 0x0003 },
 	{ 0x081, 0xE022 },
-	{ 0x410, 0x4080 },
-	{ 0x418, 0x4080 },
-	{ 0x420, 0x4080 },
-	{ 0x428, 0xC000 },
+	{ 0x410, 0x6080 },
+	{ 0x418, 0xa080 },
+	{ 0x420, 0xa080 },
+	{ 0x428, 0xe000 },
+	{ 0x443, 0xDC1A },
 	{ 0x4B0, 0x0066 },
 	{ 0x458, 0x000b },
 	{ 0x212, 0x0000 },
+	{ 0x171, 0x0000 },
+	{ 0x35E, 0x000C },
+	{ 0x2D4, 0x0000 },
 	{ 0x80, 0x0000 },
 };
 
@@ -282,7 +287,7 @@ static const struct reg_default wm5102_reg_default[] = {
 	{ 0x00000155, 0x0000 },   /* R341   - Rate Estimator 4 */ 
 	{ 0x00000156, 0x0000 },   /* R342   - Rate Estimator 5 */ 
 	{ 0x00000161, 0x0000 },   /* R353   - Dynamic Frequency Scaling 1 */ 
-	{ 0x00000171, 0x0002 },   /* R369   - FLL1 Control 1 */
+	{ 0x00000171, 0x0000 },   /* R369   - FLL1 Control 1 */
 	{ 0x00000172, 0x0008 },   /* R370   - FLL1 Control 2 */ 
 	{ 0x00000173, 0x0018 },   /* R371   - FLL1 Control 3 */ 
 	{ 0x00000174, 0x007D },   /* R372   - FLL1 Control 4 */ 
-- 
cgit v1.2.3


From 247fa1920deeb1064e36c0a34410f4d63503b3d4 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Tue, 19 Mar 2013 14:47:47 +0100
Subject: mfd: arizona: Fully support the use of MCLK1 as the 32kHz clock
 source

MCLK1 is not in the AoD power domain so if it is used as the 32kHz clock
source we need to hold a runtime PM reference to keep the device from going
into low power mode.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/arizona-core.c | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index dd679e8601da..c2c969391291 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -39,11 +39,21 @@ int arizona_clk32k_enable(struct arizona *arizona)
 
 	arizona->clk32k_ref++;
 
-	if (arizona->clk32k_ref == 1)
+	if (arizona->clk32k_ref == 1) {
+		switch (arizona->pdata.clk32k_src) {
+		case ARIZONA_32KZ_MCLK1:
+			ret = pm_runtime_get_sync(arizona->dev);
+			if (ret != 0)
+				goto out;
+			break;
+		}
+
 		ret = regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
 					 ARIZONA_CLK_32K_ENA,
 					 ARIZONA_CLK_32K_ENA);
+	}
 
+out:
 	if (ret != 0)
 		arizona->clk32k_ref--;
 
@@ -63,10 +73,17 @@ int arizona_clk32k_disable(struct arizona *arizona)
 
 	arizona->clk32k_ref--;
 
-	if (arizona->clk32k_ref == 0)
+	if (arizona->clk32k_ref == 0) {
 		regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
 				   ARIZONA_CLK_32K_ENA, 0);
 
+		switch (arizona->pdata.clk32k_src) {
+		case ARIZONA_32KZ_MCLK1:
+			pm_runtime_put_sync(arizona->dev);
+			break;
+		}
+	}
+
 	mutex_unlock(&arizona->clk_lock);
 
 	return ret;
-- 
cgit v1.2.3


From 767c6dc032d5a28765654db20c7badf1ec6e7387 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Tue, 19 Mar 2013 19:04:46 +0100
Subject: mfd: arizona: Unconditionally enable 32kHz clock

If we have a directly provided 32kHz clock unconditionally enable it,
substantial chip functionality relies on it so dynamic management is
not worthwhile.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/arizona-core.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index c2c969391291..1eb963c5cd22 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -518,6 +518,7 @@ int arizona_dev_init(struct arizona *arizona)
 		regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
 				   ARIZONA_CLK_32K_SRC_MASK,
 				   arizona->pdata.clk32k_src - 1);
+		arizona_clk32k_enable(arizona);
 		break;
 	case ARIZONA_32KZ_NONE:
 		regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
-- 
cgit v1.2.3


From c6d6bfb186add845d3f9a7f5809bc5b302579308 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Tue, 26 Mar 2013 11:14:52 +0000
Subject: mfd: wm5102: Only use the lowest three bits of device revision

Only the lowest three bits contain device revision for WM5102, the high
bits have been repurposed.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/arizona-core.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 1eb963c5cd22..f12057145990 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -444,6 +444,7 @@ int arizona_dev_init(struct arizona *arizona)
 			arizona->type = WM5102;
 		}
 		apply_patch = wm5102_patch;
+		arizona->rev &= 0x7;
 		break;
 #endif
 #ifdef CONFIG_MFD_WM5110
-- 
cgit v1.2.3


From 4c9bb8bc352a14c9613c77bc3f1e9038cd086b9b Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Tue, 26 Mar 2013 18:01:49 +0000
Subject: mfd: wm5102: Manually apply register patch

Future updates will require us to manually apply the register patch for
wm5102.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/arizona-core.c  | 10 ++++++++++
 drivers/mfd/wm5102-tables.c | 31 +++++++++++++++++++++++++------
 2 files changed, 35 insertions(+), 6 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index f12057145990..b71bf7ba4cfa 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -255,6 +255,16 @@ static int arizona_runtime_resume(struct device *dev)
 		goto err;
 	}
 
+	switch (arizona->type) {
+	case WM5102:
+		ret = wm5102_patch(arizona);
+		if (ret != 0) {
+			dev_err(arizona->dev, "Failed to apply patch: %d\n",
+				ret);
+			goto err;
+		}
+	}
+
 	ret = regcache_sync(arizona->regmap);
 	if (ret != 0) {
 		dev_err(arizona->dev, "Failed to restore register cache\n");
diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c
index 909e043edb6a..44cb7beb24fc 100644
--- a/drivers/mfd/wm5102-tables.c
+++ b/drivers/mfd/wm5102-tables.c
@@ -10,6 +10,7 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/device.h>
 #include <linux/module.h>
 
 #include <linux/mfd/arizona/core.h>
@@ -77,16 +78,34 @@ static const struct reg_default wm5102_revb_patch[] = {
 /* We use a function so we can use ARRAY_SIZE() */
 int wm5102_patch(struct arizona *arizona)
 {
+	const struct reg_default *wm5102_patch;
+	int ret = 0;
+	int i, patch_size;
+
 	switch (arizona->rev) {
 	case 0:
-		return regmap_register_patch(arizona->regmap,
-					     wm5102_reva_patch,
-					     ARRAY_SIZE(wm5102_reva_patch));
+		wm5102_patch = wm5102_reva_patch;
+		patch_size = ARRAY_SIZE(wm5102_reva_patch);
 	default:
-		return regmap_register_patch(arizona->regmap,
-					     wm5102_revb_patch,
-					     ARRAY_SIZE(wm5102_revb_patch));
+		wm5102_patch = wm5102_revb_patch;
+		patch_size = ARRAY_SIZE(wm5102_revb_patch);
 	}
+
+	regcache_cache_bypass(arizona->regmap, true);
+
+	for (i = 0; i < patch_size; i++) {
+		ret = regmap_write(arizona->regmap, wm5102_patch[i].reg,
+				   wm5102_patch[i].def);
+		if (ret != 0) {
+			dev_err(arizona->dev, "Failed to write %x = %x: %d\n",
+				wm5102_patch[i].reg, wm5102_patch[i].def, ret);
+			goto out;
+		}
+	}
+
+out:
+	regcache_cache_bypass(arizona->regmap, false);
+	return ret;
 }
 
 static const struct regmap_irq wm5102_aod_irqs[ARIZONA_NUM_IRQ] = {
-- 
cgit v1.2.3


From 9d53dfdc82503b819f7b854e627a555cc65224e3 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Tue, 26 Mar 2013 17:38:45 +0000
Subject: mfd: arizona: Factor out register polling

Factor out the polling of the interrupt status register whilst we wait
for boot done to allow the polling to be reused in other situations.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/arizona-core.c | 52 ++++++++++++++++++++++++++--------------------
 1 file changed, 30 insertions(+), 22 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index b71bf7ba4cfa..b09b119d4966 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -196,42 +196,50 @@ static irqreturn_t arizona_overclocked(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-static int arizona_wait_for_boot(struct arizona *arizona)
+static int arizona_poll_reg(struct arizona *arizona,
+			    int timeout, unsigned int reg,
+			    unsigned int mask, unsigned int target)
 {
-	unsigned int reg;
+	unsigned int val = 0;
 	int ret, i;
 
-	/*
-	 * We can't use an interrupt as we need to runtime resume to do so,
-	 * we won't race with the interrupt handler as it'll be blocked on
-	 * runtime resume.
-	 */
-	for (i = 0; i < 5; i++) {
-		msleep(1);
-
-		ret = regmap_read(arizona->regmap,
-				  ARIZONA_INTERRUPT_RAW_STATUS_5, &reg);
+	for (i = 0; i < timeout; i++) {
+		ret = regmap_read(arizona->regmap, reg, &val);
 		if (ret != 0) {
-			dev_err(arizona->dev, "Failed to read boot state: %d\n",
-				ret);
+			dev_err(arizona->dev, "Failed to read reg %u: %d\n",
+				reg, ret);
 			continue;
 		}
 
-		if (reg & ARIZONA_BOOT_DONE_STS)
-			break;
+		if ((val & mask) == target)
+			return 0;
+
+		msleep(1);
 	}
 
-	if (reg & ARIZONA_BOOT_DONE_STS) {
+	dev_err(arizona->dev, "Polling reg %u timed out: %x\n", reg, val);
+	return -ETIMEDOUT;
+}
+
+static int arizona_wait_for_boot(struct arizona *arizona)
+{
+	int ret;
+
+	/*
+	 * We can't use an interrupt as we need to runtime resume to do so,
+	 * we won't race with the interrupt handler as it'll be blocked on
+	 * runtime resume.
+	 */
+	ret = arizona_poll_reg(arizona, 5, ARIZONA_INTERRUPT_RAW_STATUS_5,
+			       ARIZONA_BOOT_DONE_STS, ARIZONA_BOOT_DONE_STS);
+
+	if (!ret)
 		regmap_write(arizona->regmap, ARIZONA_INTERRUPT_STATUS_5,
 			     ARIZONA_BOOT_DONE_STS);
-	} else {
-		dev_err(arizona->dev, "Device boot timed out: %x\n", reg);
-		return -ETIMEDOUT;
-	}
 
 	pm_runtime_mark_last_busy(arizona->dev);
 
-	return 0;
+	return ret;
 }
 
 #ifdef CONFIG_PM_RUNTIME
-- 
cgit v1.2.3


From e80436bbb241abbf2168c65622fb98d9378432fa Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Tue, 26 Mar 2013 18:46:15 +0000
Subject: mfd: arizona: Add a hardware patch mechanism

This patch adds facilities for apply a register patch contained within
the chip using the write sequencer.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/arizona-core.c | 109 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index b09b119d4966..d6b40df64c4a 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -242,6 +242,90 @@ static int arizona_wait_for_boot(struct arizona *arizona)
 	return ret;
 }
 
+static int arizona_apply_hardware_patch(struct arizona* arizona)
+{
+	unsigned int fll, sysclk;
+	int ret, err;
+
+	regcache_cache_bypass(arizona->regmap, true);
+
+	/* Cache existing FLL and SYSCLK settings */
+	ret = regmap_read(arizona->regmap, ARIZONA_FLL1_CONTROL_1, &fll);
+	if (ret != 0) {
+		dev_err(arizona->dev, "Failed to cache FLL settings: %d\n",
+			ret);
+		return ret;
+	}
+	ret = regmap_read(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, &sysclk);
+	if (ret != 0) {
+		dev_err(arizona->dev, "Failed to cache SYSCLK settings: %d\n",
+			ret);
+		return ret;
+	}
+
+	/* Start up SYSCLK using the FLL in free running mode */
+	ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1,
+			ARIZONA_FLL1_ENA | ARIZONA_FLL1_FREERUN);
+	if (ret != 0) {
+		dev_err(arizona->dev,
+			"Failed to start FLL in freerunning mode: %d\n",
+			ret);
+		return ret;
+	}
+	ret = arizona_poll_reg(arizona, 25, ARIZONA_INTERRUPT_RAW_STATUS_5,
+			       ARIZONA_FLL1_CLOCK_OK_STS,
+			       ARIZONA_FLL1_CLOCK_OK_STS);
+	if (ret != 0) {
+		ret = -ETIMEDOUT;
+		goto err_fll;
+	}
+
+	ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0144);
+	if (ret != 0) {
+		dev_err(arizona->dev, "Failed to start SYSCLK: %d\n", ret);
+		goto err_fll;
+	}
+
+	/* Start the write sequencer and wait for it to finish */
+	ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
+			ARIZONA_WSEQ_ENA | ARIZONA_WSEQ_START | 160);
+	if (ret != 0) {
+		dev_err(arizona->dev, "Failed to start write sequencer: %d\n",
+			ret);
+		goto err_sysclk;
+	}
+	ret = arizona_poll_reg(arizona, 5, ARIZONA_WRITE_SEQUENCER_CTRL_1,
+			       ARIZONA_WSEQ_BUSY, 0);
+	if (ret != 0) {
+		regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
+				ARIZONA_WSEQ_ABORT);
+		ret = -ETIMEDOUT;
+	}
+
+err_sysclk:
+	err = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, sysclk);
+	if (err != 0) {
+		dev_err(arizona->dev,
+			"Failed to re-apply old SYSCLK settings: %d\n",
+			err);
+	}
+
+err_fll:
+	err = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, fll);
+	if (err != 0) {
+		dev_err(arizona->dev,
+			"Failed to re-apply old FLL settings: %d\n",
+			err);
+	}
+
+	regcache_cache_bypass(arizona->regmap, false);
+
+	if (ret != 0)
+		return ret;
+	else
+		return err;
+}
+
 #ifdef CONFIG_PM_RUNTIME
 static int arizona_runtime_resume(struct device *dev)
 {
@@ -271,6 +355,17 @@ static int arizona_runtime_resume(struct device *dev)
 				ret);
 			goto err;
 		}
+
+		ret = arizona_apply_hardware_patch(arizona);
+		if (ret != 0) {
+			dev_err(arizona->dev,
+				"Failed to apply hardware patch: %d\n",
+				ret);
+			goto err;
+		}
+		break;
+	default:
+		break;
 	}
 
 	ret = regcache_sync(arizona->regmap);
@@ -513,6 +608,20 @@ int arizona_dev_init(struct arizona *arizona)
 				ret);
 			goto err_reset;
 		}
+
+		switch (arizona->type) {
+		case WM5102:
+			ret = arizona_apply_hardware_patch(arizona);
+			if (ret != 0) {
+				dev_err(arizona->dev,
+					"Failed to apply hardware patch: %d\n",
+					ret);
+				goto err_reset;
+			}
+			break;
+		default:
+			break;
+		}
 	}
 
 	for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
-- 
cgit v1.2.3


From 12bb68ed459e52187c7e70cb6dd4bfcc672cc171 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Wed, 27 Mar 2013 09:49:40 +0000
Subject: mfd: wm5102: Deactivate standard boot sequence

This patch deactivates the standard, currently noop, boot sequence
because we now have facilities in place for running a custom boot
sequence.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/arizona-core.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index d6b40df64c4a..7d1abe7ce83f 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -342,11 +342,6 @@ static int arizona_runtime_resume(struct device *dev)
 
 	regcache_cache_only(arizona->regmap, false);
 
-	ret = arizona_wait_for_boot(arizona);
-	if (ret != 0) {
-		goto err;
-	}
-
 	switch (arizona->type) {
 	case WM5102:
 		ret = wm5102_patch(arizona);
@@ -365,6 +360,11 @@ static int arizona_runtime_resume(struct device *dev)
 		}
 		break;
 	default:
+		ret = arizona_wait_for_boot(arizona);
+		if (ret != 0) {
+			goto err;
+		}
+
 		break;
 	}
 
-- 
cgit v1.2.3


From 9bf7e0e83fc98642584d0edd97cc6a755b9b36f3 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Wed, 27 Mar 2013 11:13:25 +0000
Subject: mfd: wm5102: Update defaults to match patch

Registers which have defaults and are updated by the patch file should
have their defaults updated to match the value set by the patch file,
otherwise incorrect values will be read from the cache.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/wm5102-tables.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c
index 44cb7beb24fc..ad1cc3b81cd4 100644
--- a/drivers/mfd/wm5102-tables.c
+++ b/drivers/mfd/wm5102-tables.c
@@ -382,7 +382,7 @@ static const struct reg_default wm5102_reg_default[] = {
 	{ 0x00000400, 0x0000 },   /* R1024  - Output Enables 1 */ 
 	{ 0x00000408, 0x0000 },   /* R1032  - Output Rate 1 */ 
 	{ 0x00000409, 0x0022 },   /* R1033  - Output Volume Ramp */ 
-	{ 0x00000410, 0x4080 },   /* R1040  - Output Path Config 1L */
+	{ 0x00000410, 0x6080 },   /* R1040  - Output Path Config 1L */
 	{ 0x00000411, 0x0180 },   /* R1041  - DAC Digital Volume 1L */ 
 	{ 0x00000412, 0x0081 },   /* R1042  - DAC Volume Limit 1L */
 	{ 0x00000413, 0x0001 },   /* R1043  - Noise Gate Select 1L */ 
@@ -390,7 +390,7 @@ static const struct reg_default wm5102_reg_default[] = {
 	{ 0x00000415, 0x0180 },   /* R1045  - DAC Digital Volume 1R */ 
 	{ 0x00000416, 0x0081 },   /* R1046  - DAC Volume Limit 1R */
 	{ 0x00000417, 0x0002 },   /* R1047  - Noise Gate Select 1R */ 
-	{ 0x00000418, 0x4080 },   /* R1048  - Output Path Config 2L */
+	{ 0x00000418, 0xA080 },   /* R1048  - Output Path Config 2L */
 	{ 0x00000419, 0x0180 },   /* R1049  - DAC Digital Volume 2L */ 
 	{ 0x0000041A, 0x0081 },   /* R1050  - DAC Volume Limit 2L */
 	{ 0x0000041B, 0x0004 },   /* R1051  - Noise Gate Select 2L */ 
@@ -398,11 +398,11 @@ static const struct reg_default wm5102_reg_default[] = {
 	{ 0x0000041D, 0x0180 },   /* R1053  - DAC Digital Volume 2R */ 
 	{ 0x0000041E, 0x0081 },   /* R1054  - DAC Volume Limit 2R */
 	{ 0x0000041F, 0x0008 },   /* R1055  - Noise Gate Select 2R */ 
-	{ 0x00000420, 0x4080 },   /* R1056  - Output Path Config 3L */
+	{ 0x00000420, 0xA080 },   /* R1056  - Output Path Config 3L */
 	{ 0x00000421, 0x0180 },   /* R1057  - DAC Digital Volume 3L */ 
 	{ 0x00000422, 0x0081 },   /* R1058  - DAC Volume Limit 3L */
 	{ 0x00000423, 0x0010 },   /* R1059  - Noise Gate Select 3L */ 
-	{ 0x00000428, 0xC000 },   /* R1064  - Output Path Config 4L */
+	{ 0x00000428, 0xE000 },   /* R1064  - Output Path Config 4L */
 	{ 0x00000429, 0x0180 },   /* R1065  - DAC Digital Volume 4L */ 
 	{ 0x0000042A, 0x0081 },   /* R1066  - Out Volume 4L */
 	{ 0x0000042B, 0x0040 },   /* R1067  - Noise Gate Select 4L */ 
@@ -417,7 +417,7 @@ static const struct reg_default wm5102_reg_default[] = {
 	{ 0x00000436, 0x0081 },   /* R1078  - DAC Volume Limit 5R */
 	{ 0x00000437, 0x0200 },   /* R1079  - Noise Gate Select 5R */
 	{ 0x00000450, 0x0000 },   /* R1104  - DAC AEC Control 1 */ 
-	{ 0x00000458, 0x0001 },   /* R1112  - Noise Gate Control */ 
+	{ 0x00000458, 0x000B },   /* R1112  - Noise Gate Control */
 	{ 0x00000490, 0x0069 },   /* R1168  - PDM SPK1 CTRL 1 */ 
 	{ 0x00000491, 0x0000 },   /* R1169  - PDM SPK1 CTRL 2 */ 
 	{ 0x00000500, 0x000C },   /* R1280  - AIF1 BCLK Ctrl */ 
-- 
cgit v1.2.3


From 87d3af4ac0554afc2e86069d7578f74b12f3f67a Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Tue, 26 Mar 2013 12:15:26 +0000
Subject: mfd: arizona: Hold device in reset while ramping supplies

Acquire the /RESET GPIO before we enable regulators and hold the device
in reset while the regulators power up in order to improve robustness
during the initial power up.

Also fix the error path so that the device is left in reset while we're
at it.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/arizona-core.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 7d1abe7ce83f..ae10af798843 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -504,6 +504,17 @@ int arizona_dev_init(struct arizona *arizona)
 		goto err_early;
 	}
 
+	if (arizona->pdata.reset) {
+		/* Start out with /RESET low to put the chip into reset */
+		ret = gpio_request_one(arizona->pdata.reset,
+				       GPIOF_DIR_OUT | GPIOF_INIT_LOW,
+				       "arizona /RESET");
+		if (ret != 0) {
+			dev_err(dev, "Failed to request /RESET: %d\n", ret);
+			goto err_early;
+		}
+	}
+
 	ret = regulator_bulk_enable(arizona->num_core_supplies,
 				    arizona->core_supplies);
 	if (ret != 0) {
@@ -518,18 +529,8 @@ int arizona_dev_init(struct arizona *arizona)
 		goto err_enable;
 	}
 
-	if (arizona->pdata.reset) {
-		/* Start out with /RESET low to put the chip into reset */
-		ret = gpio_request_one(arizona->pdata.reset,
-				       GPIOF_DIR_OUT | GPIOF_INIT_LOW,
-				       "arizona /RESET");
-		if (ret != 0) {
-			dev_err(dev, "Failed to request /RESET: %d\n", ret);
-			goto err_dcvdd;
-		}
-
+	if (arizona->pdata.reset)
 		gpio_set_value_cansleep(arizona->pdata.reset, 1);
-	}
 
 	regcache_cache_only(arizona->regmap, false);
 
@@ -769,10 +770,9 @@ err_irq:
 	arizona_irq_exit(arizona);
 err_reset:
 	if (arizona->pdata.reset) {
-		gpio_set_value_cansleep(arizona->pdata.reset, 1);
+		gpio_set_value_cansleep(arizona->pdata.reset, 0);
 		gpio_free(arizona->pdata.reset);
 	}
-err_dcvdd:
 	regulator_disable(arizona->dcvdd);
 err_enable:
 	regulator_bulk_disable(arizona->num_core_supplies,
-- 
cgit v1.2.3


From c25feaa53cca696321540ca0f8564bf484224cac Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Wed, 3 Apr 2013 12:53:37 +0100
Subject: mfd: arizona: Wait for internal clocks to startup after reset

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/arizona-core.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index ae10af798843..41856b4c0d17 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -529,8 +529,10 @@ int arizona_dev_init(struct arizona *arizona)
 		goto err_enable;
 	}
 
-	if (arizona->pdata.reset)
+	if (arizona->pdata.reset) {
 		gpio_set_value_cansleep(arizona->pdata.reset, 1);
+		msleep(1);
+	}
 
 	regcache_cache_only(arizona->regmap, false);
 
@@ -589,6 +591,8 @@ int arizona_dev_init(struct arizona *arizona)
 			goto err_reset;
 		}
 
+		msleep(1);
+
 		ret = regcache_sync(arizona->regmap);
 		if (ret != 0) {
 			dev_err(dev, "Failed to sync device: %d\n", ret);
-- 
cgit v1.2.3


From d955cba86d32e9b4b6fe7611b4c41b7bbe286183 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Wed, 3 Apr 2013 09:45:29 +0100
Subject: mfd: wm5102: Don't wait for boot when boot sequencer is disabled

As we are using a custom boot sequence we don't need to wait for the
standard boot sequence in device init when the normal write sequence is
disabled.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/arizona-core.c | 22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 41856b4c0d17..6ab03043fd60 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -600,10 +600,24 @@ int arizona_dev_init(struct arizona *arizona)
 		}
 	}
 
-	ret = arizona_wait_for_boot(arizona);
-	if (ret != 0) {
-		dev_err(arizona->dev, "Device failed initial boot: %d\n", ret);
-		goto err_reset;
+	switch (arizona->type) {
+	case WM5102:
+		ret = regmap_read(arizona->regmap, 0x19, &val);
+		if (ret != 0)
+			dev_err(dev,
+				"Failed to check write sequencer state: %d\n",
+				ret);
+		else if (val & 0x01)
+			break;
+		/* Fall through */
+	default:
+		ret = arizona_wait_for_boot(arizona);
+		if (ret != 0) {
+			dev_err(arizona->dev,
+				"Device failed initial boot: %d\n", ret);
+			goto err_reset;
+		}
+		break;
 	}
 
 	if (apply_patch) {
-- 
cgit v1.2.3


From a5055d5d683605210f77d46614bbdb389c1e4a07 Mon Sep 17 00:00:00 2001
From: Pali Rohár <pali.rohar@gmail.com>
Date: Fri, 15 Feb 2013 23:56:49 +0100
Subject: mfd: twl4030-madc: Add support for raw value in
 twl4030_madc_conversion
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Driver twl4030-madc has hardcoded channel types (10 - battery current,
1 - battery temperature) and also conversation data in variable
twl4030_divider_ratios. These hardcoded channels are incorrect for
Nokia RX-51 board (where is channel 0 - battery temperature).

For Nokia RX-51 there is rx51_battery power_supply driver which reporting
battery information via twl4030_madc_conversion. But this driver needs
raw values (not converted via some hardcoded functions). So this patch
adding new parameter "raw" to struct twl4030_madc_request which tell
twl4030-madc driver to not convert values, but rather return raw.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Anton Vorontsov <anton@enomsg.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/twl4030-madc.c       | 14 ++++++++++----
 include/linux/i2c/twl4030-madc.h |  2 ++
 2 files changed, 12 insertions(+), 4 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/twl4030-madc.c b/drivers/mfd/twl4030-madc.c
index 942b666a2a07..42bd3ea5df3c 100644
--- a/drivers/mfd/twl4030-madc.c
+++ b/drivers/mfd/twl4030-madc.c
@@ -211,12 +211,14 @@ static int twl4030battery_current(int raw_volt)
  * @reg_base - Base address of the first channel
  * @Channels - 16 bit bitmap. If the bit is set, channel value is read
  * @buf - The channel values are stored here. if read fails error
+ * @raw - Return raw values without conversion
  * value is stored
  * Returns the number of successfully read channels.
  */
 static int twl4030_madc_read_channels(struct twl4030_madc_data *madc,
 				      u8 reg_base, unsigned
-						long channels, int *buf)
+				      long channels, int *buf,
+				      bool raw)
 {
 	int count = 0, count_req = 0, i;
 	u8 reg;
@@ -230,6 +232,10 @@ static int twl4030_madc_read_channels(struct twl4030_madc_data *madc,
 			count_req++;
 			continue;
 		}
+		if (raw) {
+			count++;
+			continue;
+		}
 		switch (i) {
 		case 10:
 			buf[i] = twl4030battery_current(buf[i]);
@@ -371,7 +377,7 @@ static irqreturn_t twl4030_madc_threaded_irq_handler(int irq, void *_madc)
 		method = &twl4030_conversion_methods[r->method];
 		/* Read results */
 		len = twl4030_madc_read_channels(madc, method->rbase,
-						 r->channels, r->rbuf);
+						 r->channels, r->rbuf, r->raw);
 		/* Return results to caller */
 		if (r->func_cb != NULL) {
 			r->func_cb(len, r->channels, r->rbuf);
@@ -397,7 +403,7 @@ err_i2c:
 		method = &twl4030_conversion_methods[r->method];
 		/* Read results */
 		len = twl4030_madc_read_channels(madc, method->rbase,
-						 r->channels, r->rbuf);
+						 r->channels, r->rbuf, r->raw);
 		/* Return results to caller */
 		if (r->func_cb != NULL) {
 			r->func_cb(len, r->channels, r->rbuf);
@@ -585,7 +591,7 @@ int twl4030_madc_conversion(struct twl4030_madc_request *req)
 		goto out;
 	}
 	ret = twl4030_madc_read_channels(twl4030_madc, method->rbase,
-					 req->channels, req->rbuf);
+					 req->channels, req->rbuf, req->raw);
 	twl4030_madc->requests[req->method].active = 0;
 
 out:
diff --git a/include/linux/i2c/twl4030-madc.h b/include/linux/i2c/twl4030-madc.h
index 530e11ba0738..01f595107048 100644
--- a/include/linux/i2c/twl4030-madc.h
+++ b/include/linux/i2c/twl4030-madc.h
@@ -39,6 +39,7 @@ struct twl4030_madc_conversion_method {
  * @do_avgP:	sample the input channel for 4 consecutive cycles
  * @method:	RT, SW1, SW2
  * @type:	Polling or interrupt based method
+ * @raw:	Return raw value, do not convert it
  */
 
 struct twl4030_madc_request {
@@ -48,6 +49,7 @@ struct twl4030_madc_request {
 	u16 type;
 	bool active;
 	bool result_pending;
+	bool raw;
 	int rbuf[TWL4030_MADC_MAX_CHANNELS];
 	void (*func_cb)(int len, int channels, int *buf);
 };
-- 
cgit v1.2.3


From c6cc25fda58da8685ecef3f179adc7b99c8253b2 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 19 Feb 2013 11:51:22 +0100
Subject: mfd: adp5520: Restore mode bits on resume

The adp5520 unfortunately also clears the BL_EN bit when the nSTNDBY bit is
cleared. So we need to make sure to restore it during resume if it was set
before suspend.

Cc: stable@vger.kernel.org
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/adp5520.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/adp5520.c b/drivers/mfd/adp5520.c
index 5ab021f4f6df..0d2eba023439 100644
--- a/drivers/mfd/adp5520.c
+++ b/drivers/mfd/adp5520.c
@@ -36,6 +36,7 @@ struct adp5520_chip {
 	struct blocking_notifier_head notifier_list;
 	int irq;
 	unsigned long id;
+	uint8_t mode;
 };
 
 static int __adp5520_read(struct i2c_client *client,
@@ -326,7 +327,10 @@ static int adp5520_suspend(struct device *dev)
 	struct i2c_client *client = to_i2c_client(dev);
 	struct adp5520_chip *chip = dev_get_drvdata(&client->dev);
 
-	adp5520_clr_bits(chip->dev, ADP5520_MODE_STATUS, ADP5520_nSTNBY);
+	adp5520_read(chip->dev, ADP5520_MODE_STATUS, &chip->mode);
+	/* All other bits are W1C */
+	chip->mode &= ADP5520_BL_EN | ADP5520_DIM_EN | ADP5520_nSTNBY;
+	adp5520_write(chip->dev, ADP5520_MODE_STATUS, 0);
 	return 0;
 }
 
@@ -335,7 +339,7 @@ static int adp5520_resume(struct device *dev)
 	struct i2c_client *client = to_i2c_client(dev);
 	struct adp5520_chip *chip = dev_get_drvdata(&client->dev);
 
-	adp5520_set_bits(chip->dev, ADP5520_MODE_STATUS, ADP5520_nSTNBY);
+	adp5520_write(chip->dev, ADP5520_MODE_STATUS, chip->mode);
 	return 0;
 }
 #endif
-- 
cgit v1.2.3


From 85529575b67c318e296ae183cc80617d79aea23b Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 20 Feb 2013 18:27:21 +0900
Subject: mfd: 88pm860x: Drop devm_kfree of devm_kzalloc'd data

devm_kfree() allocates memory that is released when a driver detaches.
Thus, there is no reason to explicitly call devm_kfree() in probe or remove
functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/88pm860x-core.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/88pm860x-core.c b/drivers/mfd/88pm860x-core.c
index 893fc1ba6ead..31ca55548ef9 100644
--- a/drivers/mfd/88pm860x-core.c
+++ b/drivers/mfd/88pm860x-core.c
@@ -1144,17 +1144,15 @@ static int pm860x_probe(struct i2c_client *client,
 			return -ENOMEM;
 		ret = pm860x_dt_init(node, &client->dev, pdata);
 		if (ret)
-			goto err;
+			return ret;
 	} else if (!pdata) {
 		pr_info("No platform data in %s!\n", __func__);
 		return -EINVAL;
 	}
 
 	chip = kzalloc(sizeof(struct pm860x_chip), GFP_KERNEL);
-	if (chip == NULL) {
-		ret = -ENOMEM;
-		goto err;
-	}
+	if (chip == NULL)
+		return -ENOMEM;
 
 	chip->id = verify_addr(client);
 	chip->regmap = regmap_init_i2c(client, &pm860x_regmap_config);
@@ -1194,10 +1192,6 @@ static int pm860x_probe(struct i2c_client *client,
 
 	pm860x_device_init(chip, pdata);
 	return 0;
-err:
-	if (node)
-		devm_kfree(&client->dev, pdata);
-	return ret;
 }
 
 static int pm860x_remove(struct i2c_client *client)
-- 
cgit v1.2.3


From bf5ea28a985f274446c5fd42f170c62eeb97ad67 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 20 Feb 2013 18:28:15 +0900
Subject: mfd: lm3533: Use devm_gpio_request_one()

Use devm_gpio_request_one() to make cleanup paths more simple.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/lm3533-core.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/lm3533-core.c b/drivers/mfd/lm3533-core.c
index ceebf2c1ea97..4b7e6dac1de8 100644
--- a/drivers/mfd/lm3533-core.c
+++ b/drivers/mfd/lm3533-core.c
@@ -496,8 +496,8 @@ static int lm3533_device_init(struct lm3533 *lm3533)
 	dev_set_drvdata(lm3533->dev, lm3533);
 
 	if (gpio_is_valid(lm3533->gpio_hwen)) {
-		ret = gpio_request_one(lm3533->gpio_hwen, GPIOF_OUT_INIT_LOW,
-								"lm3533-hwen");
+		ret = devm_gpio_request_one(lm3533->dev, lm3533->gpio_hwen,
+					GPIOF_OUT_INIT_LOW, "lm3533-hwen");
 		if (ret < 0) {
 			dev_err(lm3533->dev,
 				"failed to request HWEN GPIO %d\n",
@@ -528,8 +528,6 @@ err_unregister:
 	mfd_remove_devices(lm3533->dev);
 err_disable:
 	lm3533_disable(lm3533);
-	if (gpio_is_valid(lm3533->gpio_hwen))
-		gpio_free(lm3533->gpio_hwen);
 
 	return ret;
 }
@@ -542,8 +540,6 @@ static void lm3533_device_exit(struct lm3533 *lm3533)
 
 	mfd_remove_devices(lm3533->dev);
 	lm3533_disable(lm3533);
-	if (gpio_is_valid(lm3533->gpio_hwen))
-		gpio_free(lm3533->gpio_hwen);
 }
 
 static bool lm3533_readable_register(struct device *dev, unsigned int reg)
-- 
cgit v1.2.3


From 54d34920ff6cefab0aa404fef841f9e6d3b6b9a1 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 20 Feb 2013 18:28:49 +0900
Subject: mfd: intel_msic: Use devm_gpio_request_one()

Use devm_gpio_request_one() to make cleanup paths more simple.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/intel_msic.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/intel_msic.c b/drivers/mfd/intel_msic.c
index 1804331bd52c..5be3b5e13855 100644
--- a/drivers/mfd/intel_msic.c
+++ b/drivers/mfd/intel_msic.c
@@ -323,7 +323,8 @@ static int intel_msic_init_devices(struct intel_msic *msic)
 	if (pdata->ocd) {
 		unsigned gpio = pdata->ocd->gpio;
 
-		ret = gpio_request_one(gpio, GPIOF_IN, "ocd_gpio");
+		ret = devm_gpio_request_one(&pdev->dev, gpio,
+					GPIOF_IN, "ocd_gpio");
 		if (ret) {
 			dev_err(&pdev->dev, "failed to register OCD GPIO\n");
 			return ret;
@@ -332,7 +333,6 @@ static int intel_msic_init_devices(struct intel_msic *msic)
 		ret = gpio_to_irq(gpio);
 		if (ret < 0) {
 			dev_err(&pdev->dev, "no IRQ number for OCD GPIO\n");
-			gpio_free(gpio);
 			return ret;
 		}
 
@@ -359,8 +359,6 @@ static int intel_msic_init_devices(struct intel_msic *msic)
 
 fail:
 	mfd_remove_devices(&pdev->dev);
-	if (pdata->ocd)
-		gpio_free(pdata->ocd->gpio);
 
 	return ret;
 }
@@ -368,12 +366,8 @@ fail:
 static void intel_msic_remove_devices(struct intel_msic *msic)
 {
 	struct platform_device *pdev = msic->pdev;
-	struct intel_msic_platform_data *pdata = pdev->dev.platform_data;
 
 	mfd_remove_devices(&pdev->dev);
-
-	if (pdata->ocd)
-		gpio_free(pdata->ocd->gpio);
 }
 
 static int intel_msic_probe(struct platform_device *pdev)
-- 
cgit v1.2.3


From 71f4b9cdfccfb82cff702fe61f4ace97a1dfb0e0 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 20 Feb 2013 18:29:30 +0900
Subject: mfd: omap-usb-host: Use devm_gpio_request_one()

Use devm_gpio_request_one() to make cleanup paths more simple.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/omap-usb-host.c | 23 ++---------------------
 1 file changed, 2 insertions(+), 21 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index 4febc5c7fdee..35a96e768db0 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -437,11 +437,11 @@ static void omap_usbhs_init(struct device *dev)
 
 	if (pdata->phy_reset) {
 		if (gpio_is_valid(pdata->reset_gpio_port[0]))
-			gpio_request_one(pdata->reset_gpio_port[0],
+			devm_gpio_request_one(dev, pdata->reset_gpio_port[0],
 					 GPIOF_OUT_INIT_LOW, "USB1 PHY reset");
 
 		if (gpio_is_valid(pdata->reset_gpio_port[1]))
-			gpio_request_one(pdata->reset_gpio_port[1],
+			devm_gpio_request_one(dev, pdata->reset_gpio_port[1],
 					 GPIOF_OUT_INIT_LOW, "USB2 PHY reset");
 
 		/* Hold the PHY in RESET for enough time till DIR is high */
@@ -492,21 +492,6 @@ static void omap_usbhs_init(struct device *dev)
 	}
 }
 
-static void omap_usbhs_deinit(struct device *dev)
-{
-	struct usbhs_hcd_omap		*omap = dev_get_drvdata(dev);
-	struct usbhs_omap_platform_data	*pdata = omap->pdata;
-
-	if (pdata->phy_reset) {
-		if (gpio_is_valid(pdata->reset_gpio_port[0]))
-			gpio_free(pdata->reset_gpio_port[0]);
-
-		if (gpio_is_valid(pdata->reset_gpio_port[1]))
-			gpio_free(pdata->reset_gpio_port[1]);
-	}
-}
-
-
 /**
  * usbhs_omap_probe - initialize TI-based HCDs
  *
@@ -709,8 +694,6 @@ static int usbhs_omap_probe(struct platform_device *pdev)
 	return 0;
 
 err_alloc:
-	omap_usbhs_deinit(&pdev->dev);
-
 	for (i = 0; i < omap->nports; i++) {
 		if (!IS_ERR(omap->utmi_clk[i]))
 			clk_put(omap->utmi_clk[i]);
@@ -755,8 +738,6 @@ static int usbhs_omap_remove(struct platform_device *pdev)
 	struct usbhs_hcd_omap *omap = platform_get_drvdata(pdev);
 	int i;
 
-	omap_usbhs_deinit(&pdev->dev);
-
 	for (i = 0; i < omap->nports; i++) {
 		if (!IS_ERR(omap->utmi_clk[i]))
 			clk_put(omap->utmi_clk[i]);
-- 
cgit v1.2.3


From 0287714b45c601789401e2ce28e45ea50925e419 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 20 Feb 2013 18:29:53 +0900
Subject: mfd: aat2870: Use use devm_*() functions

Use devm_*() functions to make cleanup paths more simple.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/aat2870-core.c | 20 ++++++--------------
 1 file changed, 6 insertions(+), 14 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/aat2870-core.c b/drivers/mfd/aat2870-core.c
index f1beb4971f87..dfdb0a2b6835 100644
--- a/drivers/mfd/aat2870-core.c
+++ b/drivers/mfd/aat2870-core.c
@@ -367,12 +367,12 @@ static int aat2870_i2c_probe(struct i2c_client *client,
 	int i, j;
 	int ret = 0;
 
-	aat2870 = kzalloc(sizeof(struct aat2870_data), GFP_KERNEL);
+	aat2870 = devm_kzalloc(&client->dev, sizeof(struct aat2870_data),
+				GFP_KERNEL);
 	if (!aat2870) {
 		dev_err(&client->dev,
 			"Failed to allocate memory for aat2870\n");
-		ret = -ENOMEM;
-		goto out;
+		return -ENOMEM;
 	}
 
 	aat2870->dev = &client->dev;
@@ -400,12 +400,12 @@ static int aat2870_i2c_probe(struct i2c_client *client,
 		aat2870->init(aat2870);
 
 	if (aat2870->en_pin >= 0) {
-		ret = gpio_request_one(aat2870->en_pin, GPIOF_OUT_INIT_HIGH,
-				       "aat2870-en");
+		ret = devm_gpio_request_one(&client->dev, aat2870->en_pin,
+					GPIOF_OUT_INIT_HIGH, "aat2870-en");
 		if (ret < 0) {
 			dev_err(&client->dev,
 				"Failed to request GPIO %d\n", aat2870->en_pin);
-			goto out_kfree;
+			return ret;
 		}
 	}
 
@@ -436,11 +436,6 @@ static int aat2870_i2c_probe(struct i2c_client *client,
 
 out_disable:
 	aat2870_disable(aat2870);
-	if (aat2870->en_pin >= 0)
-		gpio_free(aat2870->en_pin);
-out_kfree:
-	kfree(aat2870);
-out:
 	return ret;
 }
 
@@ -452,11 +447,8 @@ static int aat2870_i2c_remove(struct i2c_client *client)
 
 	mfd_remove_devices(aat2870->dev);
 	aat2870_disable(aat2870);
-	if (aat2870->en_pin >= 0)
-		gpio_free(aat2870->en_pin);
 	if (aat2870->uninit)
 		aat2870->uninit(aat2870);
-	kfree(aat2870);
 
 	return 0;
 }
-- 
cgit v1.2.3


From 990810b035b6f151085595c7dadf55fe23e65bbf Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 20 Feb 2013 18:30:21 +0900
Subject: mfd: twl6040: Use devm_*() functions

Use devm_*() functions to make cleanup paths more simple.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/twl6040.c | 31 +++++++++++--------------------
 1 file changed, 11 insertions(+), 20 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c
index f361bf38a0aa..492ee2cd3400 100644
--- a/drivers/mfd/twl6040.c
+++ b/drivers/mfd/twl6040.c
@@ -554,7 +554,7 @@ static int twl6040_probe(struct i2c_client *client,
 
 	twl6040->supplies[0].supply = "vio";
 	twl6040->supplies[1].supply = "v2v1";
-	ret = regulator_bulk_get(&client->dev, TWL6040_NUM_SUPPLIES,
+	ret = devm_regulator_bulk_get(&client->dev, TWL6040_NUM_SUPPLIES,
 				 twl6040->supplies);
 	if (ret != 0) {
 		dev_err(&client->dev, "Failed to get supplies: %d\n", ret);
@@ -564,7 +564,7 @@ static int twl6040_probe(struct i2c_client *client,
 	ret = regulator_bulk_enable(TWL6040_NUM_SUPPLIES, twl6040->supplies);
 	if (ret != 0) {
 		dev_err(&client->dev, "Failed to enable supplies: %d\n", ret);
-		goto power_err;
+		goto regulator_get_err;
 	}
 
 	twl6040->dev = &client->dev;
@@ -586,8 +586,8 @@ static int twl6040_probe(struct i2c_client *client,
 		twl6040->audpwron = -EINVAL;
 
 	if (gpio_is_valid(twl6040->audpwron)) {
-		ret = gpio_request_one(twl6040->audpwron, GPIOF_OUT_INIT_LOW,
-				       "audpwron");
+		ret = devm_gpio_request_one(&client->dev, twl6040->audpwron,
+					GPIOF_OUT_INIT_LOW, "audpwron");
 		if (ret)
 			goto gpio_err;
 	}
@@ -596,14 +596,14 @@ static int twl6040_probe(struct i2c_client *client,
 			IRQF_ONESHOT, 0, &twl6040_irq_chip,
 			&twl6040->irq_data);
 	if (ret < 0)
-		goto irq_init_err;
+		goto gpio_err;
 
 	twl6040->irq_ready = regmap_irq_get_virq(twl6040->irq_data,
 					       TWL6040_IRQ_READY);
 	twl6040->irq_th = regmap_irq_get_virq(twl6040->irq_data,
 					       TWL6040_IRQ_TH);
 
-	ret = request_threaded_irq(twl6040->irq_ready, NULL,
+	ret = devm_request_threaded_irq(twl6040->dev, twl6040->irq_ready, NULL,
 				   twl6040_readyint_handler, IRQF_ONESHOT,
 				   "twl6040_irq_ready", twl6040);
 	if (ret) {
@@ -611,7 +611,7 @@ static int twl6040_probe(struct i2c_client *client,
 		goto readyirq_err;
 	}
 
-	ret = request_threaded_irq(twl6040->irq_th, NULL,
+	ret = devm_request_threaded_irq(twl6040->dev, twl6040->irq_th, NULL,
 				   twl6040_thint_handler, IRQF_ONESHOT,
 				   "twl6040_irq_th", twl6040);
 	if (ret) {
@@ -681,18 +681,13 @@ static int twl6040_probe(struct i2c_client *client,
 	return 0;
 
 mfd_err:
-	free_irq(twl6040->irq_th, twl6040);
+	devm_free_irq(&client->dev, twl6040->irq_th, twl6040);
 thirq_err:
-	free_irq(twl6040->irq_ready, twl6040);
+	devm_free_irq(&client->dev, twl6040->irq_ready, twl6040);
 readyirq_err:
 	regmap_del_irq_chip(twl6040->irq, twl6040->irq_data);
-irq_init_err:
-	if (gpio_is_valid(twl6040->audpwron))
-		gpio_free(twl6040->audpwron);
 gpio_err:
 	regulator_bulk_disable(TWL6040_NUM_SUPPLIES, twl6040->supplies);
-power_err:
-	regulator_bulk_free(TWL6040_NUM_SUPPLIES, twl6040->supplies);
 regulator_get_err:
 	i2c_set_clientdata(client, NULL);
 err:
@@ -706,18 +701,14 @@ static int twl6040_remove(struct i2c_client *client)
 	if (twl6040->power_count)
 		twl6040_power(twl6040, 0);
 
-	if (gpio_is_valid(twl6040->audpwron))
-		gpio_free(twl6040->audpwron);
-
-	free_irq(twl6040->irq_ready, twl6040);
-	free_irq(twl6040->irq_th, twl6040);
+	devm_free_irq(&client->dev, twl6040->irq_ready, twl6040);
+	devm_free_irq(&client->dev, twl6040->irq_th, twl6040);
 	regmap_del_irq_chip(twl6040->irq, twl6040->irq_data);
 
 	mfd_remove_devices(&client->dev);
 	i2c_set_clientdata(client, NULL);
 
 	regulator_bulk_disable(TWL6040_NUM_SUPPLIES, twl6040->supplies);
-	regulator_bulk_free(TWL6040_NUM_SUPPLIES, twl6040->supplies);
 
 	return 0;
 }
-- 
cgit v1.2.3


From 1ba895e0487810ee44eb08585e6810ad66159988 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 20 Feb 2013 18:30:55 +0900
Subject: mfd: ezx-pcap: Use devm_*() functions

Use devm_*() functions to make cleanup paths more simple.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/ezx-pcap.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
index b7a61f0f27a4..f83cc3da9308 100644
--- a/drivers/mfd/ezx-pcap.c
+++ b/drivers/mfd/ezx-pcap.c
@@ -403,7 +403,7 @@ static int ezx_pcap_remove(struct spi_device *spi)
 	/* cleanup ADC */
 	adc_irq = pcap_to_irq(pcap, (pdata->config & PCAP_SECOND_PORT) ?
 				PCAP_IRQ_ADCDONE2 : PCAP_IRQ_ADCDONE);
-	free_irq(adc_irq, pcap);
+	devm_free_irq(&spi->dev, adc_irq, pcap);
 	mutex_lock(&pcap->adc_mutex);
 	for (i = 0; i < PCAP_ADC_MAXQ; i++)
 		kfree(pcap->adc_queue[i]);
@@ -415,8 +415,6 @@ static int ezx_pcap_remove(struct spi_device *spi)
 
 	destroy_workqueue(pcap->workqueue);
 
-	kfree(pcap);
-
 	return 0;
 }
 
@@ -431,7 +429,7 @@ static int ezx_pcap_probe(struct spi_device *spi)
 	if (!pdata)
 		goto ret;
 
-	pcap = kzalloc(sizeof(*pcap), GFP_KERNEL);
+	pcap = devm_kzalloc(&spi->dev, sizeof(*pcap), GFP_KERNEL);
 	if (!pcap) {
 		ret = -ENOMEM;
 		goto ret;
@@ -448,7 +446,7 @@ static int ezx_pcap_probe(struct spi_device *spi)
 	spi->mode = SPI_MODE_0 | (pdata->config & PCAP_CS_AH ? SPI_CS_HIGH : 0);
 	ret = spi_setup(spi);
 	if (ret)
-		goto free_pcap;
+		goto ret;
 
 	pcap->spi = spi;
 
@@ -458,7 +456,7 @@ static int ezx_pcap_probe(struct spi_device *spi)
 	if (!pcap->workqueue) {
 		ret = -ENOMEM;
 		dev_err(&spi->dev, "can't create pcap thread\n");
-		goto free_pcap;
+		goto ret;
 	}
 
 	/* redirect interrupts to AP, except adcdone2 */
@@ -491,7 +489,8 @@ static int ezx_pcap_probe(struct spi_device *spi)
 	adc_irq = pcap_to_irq(pcap, (pdata->config & PCAP_SECOND_PORT) ?
 					PCAP_IRQ_ADCDONE2 : PCAP_IRQ_ADCDONE);
 
-	ret = request_irq(adc_irq, pcap_adc_irq, 0, "ADC", pcap);
+	ret = devm_request_irq(&spi->dev, adc_irq, pcap_adc_irq, 0, "ADC",
+				pcap);
 	if (ret)
 		goto free_irqchip;
 
@@ -511,14 +510,12 @@ static int ezx_pcap_probe(struct spi_device *spi)
 remove_subdevs:
 	device_for_each_child(&spi->dev, NULL, pcap_remove_subdev);
 /* free_adc: */
-	free_irq(adc_irq, pcap);
+	devm_free_irq(&spi->dev, adc_irq, pcap);
 free_irqchip:
 	for (i = pcap->irq_base; i < (pcap->irq_base + PCAP_NIRQS); i++)
 		irq_set_chip_and_handler(i, NULL, NULL);
 /* destroy_workqueue: */
 	destroy_workqueue(pcap->workqueue);
-free_pcap:
-	kfree(pcap);
 ret:
 	return ret;
 }
-- 
cgit v1.2.3


From aa4dcf5bec80501933c6935f50f438594823c614 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 20 Feb 2013 18:31:26 +0900
Subject: mfd: da903x: Use devm_*() functions

Use devm_*() functions to make cleanup paths more simple.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/da903x.c | 19 ++++++-------------
 1 file changed, 6 insertions(+), 13 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/da903x.c b/drivers/mfd/da903x.c
index 05176cd2862b..f1a316e0d6a6 100644
--- a/drivers/mfd/da903x.c
+++ b/drivers/mfd/da903x.c
@@ -499,7 +499,8 @@ static int da903x_probe(struct i2c_client *client,
 	unsigned int tmp;
 	int ret;
 
-	chip = kzalloc(sizeof(struct da903x_chip), GFP_KERNEL);
+	chip = devm_kzalloc(&client->dev, sizeof(struct da903x_chip),
+				GFP_KERNEL);
 	if (chip == NULL)
 		return -ENOMEM;
 
@@ -515,33 +516,27 @@ static int da903x_probe(struct i2c_client *client,
 
 	ret = chip->ops->init_chip(chip);
 	if (ret)
-		goto out_free_chip;
+		return ret;
 
 	/* mask and clear all IRQs */
 	chip->events_mask = 0xffffffff;
 	chip->ops->mask_events(chip, chip->events_mask);
 	chip->ops->read_events(chip, &tmp);
 
-	ret = request_irq(client->irq, da903x_irq_handler,
+	ret = devm_request_irq(&client->dev, client->irq, da903x_irq_handler,
 			IRQF_TRIGGER_FALLING,
 			"da903x", chip);
 	if (ret) {
 		dev_err(&client->dev, "failed to request irq %d\n",
 				client->irq);
-		goto out_free_chip;
+		return ret;
 	}
 
 	ret = da903x_add_subdevs(chip, pdata);
 	if (ret)
-		goto out_free_irq;
+		return ret;
 
 	return 0;
-
-out_free_irq:
-	free_irq(client->irq, chip);
-out_free_chip:
-	kfree(chip);
-	return ret;
 }
 
 static int da903x_remove(struct i2c_client *client)
@@ -549,8 +544,6 @@ static int da903x_remove(struct i2c_client *client)
 	struct da903x_chip *chip = i2c_get_clientdata(client);
 
 	da903x_remove_subdevs(chip);
-	free_irq(client->irq, chip);
-	kfree(chip);
 	return 0;
 }
 
-- 
cgit v1.2.3


From 1383e00f79a7bd6333083a12b43481b6bf2bdcb4 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 20 Feb 2013 18:31:52 +0900
Subject: mfd: tc3589x: Use devm_*() functions

Use devm_*() functions to make cleanup paths more simple.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/tc3589x.c | 21 ++++++---------------
 1 file changed, 6 insertions(+), 15 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/tc3589x.c b/drivers/mfd/tc3589x.c
index ecc092c7f745..4cb92bb2aea2 100644
--- a/drivers/mfd/tc3589x.c
+++ b/drivers/mfd/tc3589x.c
@@ -350,7 +350,8 @@ static int tc3589x_probe(struct i2c_client *i2c,
 				     | I2C_FUNC_SMBUS_I2C_BLOCK))
 		return -EIO;
 
-	tc3589x = kzalloc(sizeof(struct tc3589x), GFP_KERNEL);
+	tc3589x = devm_kzalloc(&i2c->dev, sizeof(struct tc3589x),
+				GFP_KERNEL);
 	if (!tc3589x)
 		return -ENOMEM;
 
@@ -366,33 +367,27 @@ static int tc3589x_probe(struct i2c_client *i2c,
 
 	ret = tc3589x_chip_init(tc3589x);
 	if (ret)
-		goto out_free;
+		return ret;
 
 	ret = tc3589x_irq_init(tc3589x, np);
 	if (ret)
-		goto out_free;
+		return ret;
 
 	ret = request_threaded_irq(tc3589x->i2c->irq, NULL, tc3589x_irq,
 				   IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
 				   "tc3589x", tc3589x);
 	if (ret) {
 		dev_err(tc3589x->dev, "failed to request IRQ: %d\n", ret);
-		goto out_free;
+		return ret;
 	}
 
 	ret = tc3589x_device_init(tc3589x);
 	if (ret) {
 		dev_err(tc3589x->dev, "failed to add child devices\n");
-		goto out_freeirq;
+		return ret;
 	}
 
 	return 0;
-
-out_freeirq:
-	free_irq(tc3589x->i2c->irq, tc3589x);
-out_free:
-	kfree(tc3589x);
-	return ret;
 }
 
 static int tc3589x_remove(struct i2c_client *client)
@@ -401,10 +396,6 @@ static int tc3589x_remove(struct i2c_client *client)
 
 	mfd_remove_devices(tc3589x->dev);
 
-	free_irq(tc3589x->i2c->irq, tc3589x);
-
-	kfree(tc3589x);
-
 	return 0;
 }
 
-- 
cgit v1.2.3


From 895ce2d891a094aeb7e9e3f3ec6a0e4c8bf038aa Mon Sep 17 00:00:00 2001
From: Alessandro Rubini <rubini@gnudd.com>
Date: Fri, 22 Feb 2013 10:39:59 +0100
Subject: mfd: sta2x11: Build warning fix

This driver cannot be a module, so "remove" is never called.  The
mishap is mine, and back then there was no warning due to __devexit().

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com>
Acked-by: Davide Ciminaghi <ciminaghi@gnudd.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/sta2x11-mfd.c | 11 -----------
 1 file changed, 11 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c
index 9bd33169a111..d70a343078fd 100644
--- a/drivers/mfd/sta2x11-mfd.c
+++ b/drivers/mfd/sta2x11-mfd.c
@@ -98,17 +98,6 @@ static int sta2x11_mfd_add(struct pci_dev *pdev, gfp_t flags)
 	return 0;
 }
 
-static int mfd_remove(struct pci_dev *pdev)
-{
-	struct sta2x11_mfd *mfd = sta2x11_mfd_find(pdev);
-
-	if (!mfd)
-		return -ENODEV;
-	list_del(&mfd->list);
-	kfree(mfd);
-	return 0;
-}
-
 /* This function is exported and is not expected to fail */
 u32 __sta2x11_mfd_mask(struct pci_dev *pdev, u32 reg, u32 mask, u32 val,
 		       enum sta2x11_mfd_plat_dev index)
-- 
cgit v1.2.3


From 36c772e31fa72006e80d12d1a94db2a326ba00a5 Mon Sep 17 00:00:00 2001
From: Rhyland Klein <rklein@nvidia.com>
Date: Tue, 12 Mar 2013 18:08:07 -0400
Subject: mfd: tps65090: Add resources for charger

Add irq resources to pass to the charger mfd sub dev so
the charger can listen for interrupts.

Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/tps65090.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/tps65090.c b/drivers/mfd/tps65090.c
index 98edb5be85c6..88846aeab74f 100644
--- a/drivers/mfd/tps65090.c
+++ b/drivers/mfd/tps65090.c
@@ -56,12 +56,22 @@
 #define TPS65090_INT2_MASK_OVERLOAD_FET6		6
 #define TPS65090_INT2_MASK_OVERLOAD_FET7		7
 
+static struct resource charger_resources[] = {
+	{
+		.start  = TPS65090_IRQ_VAC_STATUS_CHANGE,
+		.end    = TPS65090_IRQ_VAC_STATUS_CHANGE,
+		.flags  = IORESOURCE_IRQ,
+	}
+};
+
 static struct mfd_cell tps65090s[] = {
 	{
 		.name = "tps65090-pmic",
 	},
 	{
 		.name = "tps65090-charger",
+		.num_resources = ARRAY_SIZE(charger_resources),
+		.resources = &charger_resources[0],
 	},
 };
 
-- 
cgit v1.2.3


From c4fbec3c6b8d61366ce377cebd3b25ce6c41a0b0 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Tue, 19 Mar 2013 14:28:20 +0530
Subject: mfd: palmas: Initialise client->of_node for dummy created client

Palmas device have three different i2c addresses. The device creates
the two new dummy i2c clients for accessing the register by using
primary client adapter. This new dummy i2c client have their of_node
as NULL.

The dummy i2c client is used for registering interrupt and on this,
it creates irq domain handle. This created irq domain handle has
their of_node as NULL.

Now when any child of this device is registered through the DT as
follows:
         palmas: tps65913@58 {
         	::::::::::::::::::

         	#interrupt-cells = <2>;
                interrupt-controller;

                palmas_rtc {
                       compatible = "ti,palmas-rtc";
                       interrupt-parent = <&palmas>;
                       interrupts = <8 0>;
                };
                ::::::::::;;;
         };

And child driver (palam-rtc in this case) get their irq number as
	irq = platform_get_irq(pdev, 0);

The returned irq number is error in this case. The reason is that
the created irq_domain handle for the palmas interrupt does not have
valid node and so matching of node fails with palmas node.

Hence initialising the newly dummy created client->of_node with the
primary clients of_node so that irq_domain handle have proper of_node
for matching.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/palmas.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index c01b69a5a4ee..53e9fe638d32 100644
--- a/drivers/mfd/palmas.c
+++ b/drivers/mfd/palmas.c
@@ -349,6 +349,7 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
 				ret = -ENOMEM;
 				goto err;
 			}
+			palmas->i2c_clients[i]->dev.of_node = of_node_get(node);
 		}
 		palmas->regmap[i] = devm_regmap_init_i2c(palmas->i2c_clients[i],
 				&palmas_regmap_config[i]);
-- 
cgit v1.2.3


From b5bdc0463e451dff90c1f0b2f9ca560364d43d35 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Wed, 6 Mar 2013 14:28:14 +0800
Subject: mfd: wm5102: Map in additional FLL control registers

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/wm5102-tables.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c
index ad1cc3b81cd4..268664d86a26 100644
--- a/drivers/mfd/wm5102-tables.c
+++ b/drivers/mfd/wm5102-tables.c
@@ -314,12 +314,14 @@ static const struct reg_default wm5102_reg_default[] = {
 	{ 0x00000176, 0x0000 },   /* R374   - FLL1 Control 6 */ 
 	{ 0x00000177, 0x0181 },   /* R375   - FLL1 Loop Filter Test 1 */ 
 	{ 0x00000178, 0x0000 },   /* R376   - FLL1 NCO Test 0 */
+	{ 0x00000179, 0x0000 },   /* R377   - FLL1 Control 7 */
 	{ 0x00000181, 0x0000 },   /* R385   - FLL1 Synchroniser 1 */ 
 	{ 0x00000182, 0x0000 },   /* R386   - FLL1 Synchroniser 2 */ 
 	{ 0x00000183, 0x0000 },   /* R387   - FLL1 Synchroniser 3 */ 
 	{ 0x00000184, 0x0000 },   /* R388   - FLL1 Synchroniser 4 */ 
 	{ 0x00000185, 0x0000 },   /* R389   - FLL1 Synchroniser 5 */ 
 	{ 0x00000186, 0x0000 },   /* R390   - FLL1 Synchroniser 6 */ 
+	{ 0x00000187, 0x0001 },   /* R391   - FLL1 Synchroniser 7 */
 	{ 0x00000189, 0x0000 },   /* R393   - FLL1 Spread Spectrum */ 
 	{ 0x0000018A, 0x0004 },   /* R394   - FLL1 GPIO Clock */ 
 	{ 0x00000191, 0x0000 },   /* R401   - FLL2 Control 1 */ 
@@ -330,12 +332,14 @@ static const struct reg_default wm5102_reg_default[] = {
 	{ 0x00000196, 0x0000 },   /* R406   - FLL2 Control 6 */ 
 	{ 0x00000197, 0x0000 },   /* R407   - FLL2 Loop Filter Test 1 */ 
 	{ 0x00000198, 0x0000 },   /* R408   - FLL2 NCO Test 0 */
+	{ 0x00000199, 0x0000 },   /* R409   - FLL2 Control 7 */
 	{ 0x000001A1, 0x0000 },   /* R417   - FLL2 Synchroniser 1 */ 
 	{ 0x000001A2, 0x0000 },   /* R418   - FLL2 Synchroniser 2 */ 
 	{ 0x000001A3, 0x0000 },   /* R419   - FLL2 Synchroniser 3 */ 
 	{ 0x000001A4, 0x0000 },   /* R420   - FLL2 Synchroniser 4 */ 
 	{ 0x000001A5, 0x0000 },   /* R421   - FLL2 Synchroniser 5 */ 
 	{ 0x000001A6, 0x0000 },   /* R422   - FLL2 Synchroniser 6 */ 
+	{ 0x000001A7, 0x0001 },   /* R423   - FLL2 Synchroniser 7 */
 	{ 0x000001A9, 0x0000 },   /* R425   - FLL2 Spread Spectrum */ 
 	{ 0x000001AA, 0x0004 },   /* R426   - FLL2 GPIO Clock */ 
 	{ 0x00000200, 0x0006 },   /* R512   - Mic Charge Pump 1 */ 
@@ -1075,12 +1079,14 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg)
 	case ARIZONA_FLL1_CONTROL_6:
 	case ARIZONA_FLL1_LOOP_FILTER_TEST_1:
 	case ARIZONA_FLL1_NCO_TEST_0:
+	case ARIZONA_FLL1_CONTROL_7:
 	case ARIZONA_FLL1_SYNCHRONISER_1:
 	case ARIZONA_FLL1_SYNCHRONISER_2:
 	case ARIZONA_FLL1_SYNCHRONISER_3:
 	case ARIZONA_FLL1_SYNCHRONISER_4:
 	case ARIZONA_FLL1_SYNCHRONISER_5:
 	case ARIZONA_FLL1_SYNCHRONISER_6:
+	case ARIZONA_FLL1_SYNCHRONISER_7:
 	case ARIZONA_FLL1_SPREAD_SPECTRUM:
 	case ARIZONA_FLL1_GPIO_CLOCK:
 	case ARIZONA_FLL2_CONTROL_1:
@@ -1091,12 +1097,14 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg)
 	case ARIZONA_FLL2_CONTROL_6:
 	case ARIZONA_FLL2_LOOP_FILTER_TEST_1:
 	case ARIZONA_FLL2_NCO_TEST_0:
+	case ARIZONA_FLL2_CONTROL_7:
 	case ARIZONA_FLL2_SYNCHRONISER_1:
 	case ARIZONA_FLL2_SYNCHRONISER_2:
 	case ARIZONA_FLL2_SYNCHRONISER_3:
 	case ARIZONA_FLL2_SYNCHRONISER_4:
 	case ARIZONA_FLL2_SYNCHRONISER_5:
 	case ARIZONA_FLL2_SYNCHRONISER_6:
+	case ARIZONA_FLL2_SYNCHRONISER_7:
 	case ARIZONA_FLL2_SPREAD_SPECTRUM:
 	case ARIZONA_FLL2_GPIO_CLOCK:
 	case ARIZONA_MIC_CHARGE_PUMP_1:
-- 
cgit v1.2.3


From f2d614c4beb6d1588e515dd64e7e44ba5510404e Mon Sep 17 00:00:00 2001
From: Paul Bolle <pebolle@tiscali.nl>
Date: Sat, 9 Mar 2013 17:32:34 +0100
Subject: mfd: da9055: Drop "select PMIC_DA9055"

The Kconfig entry for DA9055 PMIC Support selects PMIC_DA9055. That was
probably inspired by the similar select statement in the entry for
DA9052/53 PMIC with I2C. But the DA9055 PMIC only comes in an I2C
variant and its driver doesn't need a separate Kconfig symbol for shared
code. In any case, this select can be dropped as PMIC_DA9055 doesn't
exist.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/Kconfig | 1 -
 1 file changed, 1 deletion(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index d5b9b051ef15..cc7f6a234ac8 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -516,7 +516,6 @@ config MFD_DA9055
 	bool "Dialog Semiconductor DA9055 PMIC Support"
 	select REGMAP_I2C
 	select REGMAP_IRQ
-	select PMIC_DA9055
 	select MFD_CORE
 	depends on I2C=y && GENERIC_HARDIRQS
 	help
-- 
cgit v1.2.3


From 662e469e91d85438444703aa60dc35ac27b06773 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Tue, 8 Jan 2013 16:01:52 +0200
Subject: mfd: omap-usb-host: Update nports in platform_data

EHCI driver would need to know the number of ports available
on the platform. We set the nports parameter of platform_data
based on IP version if it was not already provided.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/omap-usb-host.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index 35a96e768db0..2520facd4ccc 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -560,6 +560,7 @@ static int usbhs_omap_probe(struct platform_device *pdev)
 			 omap->usbhs_rev, omap->nports);
 			break;
 		}
+		pdata->nports = omap->nports;
 	}
 
 	i = sizeof(struct clk *) * omap->nports;
-- 
cgit v1.2.3


From 9f4a3ece05a6c2f2dc5e4967602e9927addab97e Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Tue, 29 Jan 2013 15:00:03 +0200
Subject: mfd: omap-usb-tll: Move configuration code to omap_tll_init()

This is because we want to get rid of platform_data usage from probe().
The only information we need is PORT_MODE, and this can be supplied
to us by the user (i.e. omap-usb-host.c).

We also move channel clock management from runtime PM handlers into
omap_tll_enable/disable().

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/omap-usb-host.c |   7 +-
 drivers/mfd/omap-usb-tll.c  | 204 +++++++++++++++++++++-----------------------
 drivers/mfd/omap-usb.h      |   5 +-
 3 files changed, 107 insertions(+), 109 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index 2520facd4ccc..eb5db28b3fbd 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -278,7 +278,7 @@ static int usbhs_runtime_resume(struct device *dev)
 
 	dev_dbg(dev, "usbhs_runtime_resume\n");
 
-	omap_tll_enable();
+	omap_tll_enable(pdata);
 
 	if (!IS_ERR(omap->ehci_logic_fck))
 		clk_enable(omap->ehci_logic_fck);
@@ -353,7 +353,7 @@ static int usbhs_runtime_suspend(struct device *dev)
 	if (!IS_ERR(omap->ehci_logic_fck))
 		clk_disable(omap->ehci_logic_fck);
 
-	omap_tll_disable();
+	omap_tll_disable(pdata);
 
 	return 0;
 }
@@ -527,6 +527,9 @@ static int usbhs_omap_probe(struct platform_device *pdev)
 
 	omap->pdata = pdata;
 
+	/* Initialize the TLL subsystem */
+	omap_tll_init(pdata);
+
 	pm_runtime_enable(dev);
 
 	platform_set_drvdata(pdev, omap);
diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c
index 0aef1a768880..f7d2568729c1 100644
--- a/drivers/mfd/omap-usb-tll.c
+++ b/drivers/mfd/omap-usb-tll.c
@@ -1,8 +1,9 @@
 /**
  * omap-usb-tll.c - The USB TLL driver for OMAP EHCI & OHCI
  *
- * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
+ * Copyright (C) 2012-2013 Texas Instruments Incorporated - http://www.ti.com
  * Author: Keshava Munegowda <keshava_mgowda@ti.com>
+ * Author: Roger Quadros <rogerq@ti.com>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2  of
@@ -105,8 +106,8 @@
 
 struct usbtll_omap {
 	int					nch;	/* num. of channels */
-	struct usbhs_omap_platform_data		*pdata;
 	struct clk				**ch_clk;
+	void __iomem				*base;
 };
 
 /*-------------------------------------------------------------------------*/
@@ -210,14 +211,10 @@ static unsigned ohci_omap3_fslsmode(enum usbhs_omap_port_mode mode)
 static int usbtll_omap_probe(struct platform_device *pdev)
 {
 	struct device				*dev =  &pdev->dev;
-	struct usbhs_omap_platform_data		*pdata = dev->platform_data;
-	void __iomem				*base;
 	struct resource				*res;
 	struct usbtll_omap			*tll;
-	unsigned				reg;
 	int					ret = 0;
 	int					i, ver;
-	bool needs_tll;
 
 	dev_dbg(dev, "starting TI HSUSB TLL Controller\n");
 
@@ -227,16 +224,9 @@ static int usbtll_omap_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	if (!pdata) {
-		dev_err(dev, "Platform data missing\n");
-		return -ENODEV;
-	}
-
-	tll->pdata = pdata;
-
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = devm_request_and_ioremap(dev, res);
-	if (!base) {
+	tll->base = devm_request_and_ioremap(dev, res);
+	if (!tll->base) {
 		ret = -EADDRNOTAVAIL;
 		dev_err(dev, "Resource request/ioremap failed:%d\n", ret);
 		return ret;
@@ -246,7 +236,7 @@ static int usbtll_omap_probe(struct platform_device *pdev)
 	pm_runtime_enable(dev);
 	pm_runtime_get_sync(dev);
 
-	ver =  usbtll_read(base, OMAP_USBTLL_REVISION);
+	ver =  usbtll_read(tll->base, OMAP_USBTLL_REVISION);
 	switch (ver) {
 	case OMAP_USBTLL_REV1:
 	case OMAP_USBTLL_REV4:
@@ -283,11 +273,77 @@ static int usbtll_omap_probe(struct platform_device *pdev)
 			dev_dbg(dev, "can't get clock : %s\n", clkname);
 	}
 
+	pm_runtime_put_sync(dev);
+	/* only after this can omap_tll_enable/disable work */
+	spin_lock(&tll_lock);
+	tll_dev = dev;
+	spin_unlock(&tll_lock);
+
+	return 0;
+
+err_clk_alloc:
+	pm_runtime_put_sync(dev);
+	pm_runtime_disable(dev);
+
+	return ret;
+}
+
+/**
+ * usbtll_omap_remove - shutdown processing for UHH & TLL HCDs
+ * @pdev: USB Host Controller being removed
+ *
+ * Reverses the effect of usbtll_omap_probe().
+ */
+static int usbtll_omap_remove(struct platform_device *pdev)
+{
+	struct usbtll_omap *tll = platform_get_drvdata(pdev);
+	int i;
+
+	spin_lock(&tll_lock);
+	tll_dev = NULL;
+	spin_unlock(&tll_lock);
+
+	for (i = 0; i < tll->nch; i++)
+		if (!IS_ERR(tll->ch_clk[i]))
+			clk_put(tll->ch_clk[i]);
+
+	pm_runtime_disable(&pdev->dev);
+	return 0;
+}
+
+static struct platform_driver usbtll_omap_driver = {
+	.driver = {
+		.name		= (char *)usbtll_driver_name,
+		.owner		= THIS_MODULE,
+	},
+	.probe		= usbtll_omap_probe,
+	.remove		= usbtll_omap_remove,
+};
+
+int omap_tll_init(struct usbhs_omap_platform_data *pdata)
+{
+	int i;
+	bool needs_tll;
+	unsigned reg;
+	struct usbtll_omap *tll;
+
+	spin_lock(&tll_lock);
+
+	if (!tll_dev) {
+		spin_unlock(&tll_lock);
+		return -ENODEV;
+	}
+
+	tll = dev_get_drvdata(tll_dev);
+
 	needs_tll = false;
 	for (i = 0; i < tll->nch; i++)
 		needs_tll |= omap_usb_mode_needs_tll(pdata->port_mode[i]);
 
+	pm_runtime_get_sync(tll_dev);
+
 	if (needs_tll) {
+		void __iomem *base = tll->base;
 
 		/* Program Common TLL register */
 		reg = usbtll_read(base, OMAP_TLL_SHARED_CONF);
@@ -336,51 +392,29 @@ static int usbtll_omap_probe(struct platform_device *pdev)
 		}
 	}
 
-	pm_runtime_put_sync(dev);
-	/* only after this can omap_tll_enable/disable work */
-	spin_lock(&tll_lock);
-	tll_dev = dev;
+	pm_runtime_put_sync(tll_dev);
+
 	spin_unlock(&tll_lock);
 
 	return 0;
-
-err_clk_alloc:
-	pm_runtime_put_sync(dev);
-	pm_runtime_disable(dev);
-
-	return ret;
 }
+EXPORT_SYMBOL_GPL(omap_tll_init);
 
-/**
- * usbtll_omap_remove - shutdown processing for UHH & TLL HCDs
- * @pdev: USB Host Controller being removed
- *
- * Reverses the effect of usbtll_omap_probe().
- */
-static int usbtll_omap_remove(struct platform_device *pdev)
+int omap_tll_enable(struct usbhs_omap_platform_data *pdata)
 {
-	struct usbtll_omap *tll = platform_get_drvdata(pdev);
 	int i;
+	struct usbtll_omap *tll;
 
 	spin_lock(&tll_lock);
-	tll_dev = NULL;
-	spin_unlock(&tll_lock);
-
-	for (i = 0; i < tll->nch; i++)
-		if (!IS_ERR(tll->ch_clk[i]))
-			clk_put(tll->ch_clk[i]);
 
-	pm_runtime_disable(&pdev->dev);
-	return 0;
-}
+	if (!tll_dev) {
+		spin_unlock(&tll_lock);
+		return -ENODEV;
+	}
 
-static int usbtll_runtime_resume(struct device *dev)
-{
-	struct usbtll_omap			*tll = dev_get_drvdata(dev);
-	struct usbhs_omap_platform_data		*pdata = tll->pdata;
-	int i;
+	tll = dev_get_drvdata(tll_dev);
 
-	dev_dbg(dev, "usbtll_runtime_resume\n");
+	pm_runtime_get_sync(tll_dev);
 
 	for (i = 0; i < tll->nch; i++) {
 		if (omap_usb_mode_needs_tll(pdata->port_mode[i])) {
@@ -391,22 +425,31 @@ static int usbtll_runtime_resume(struct device *dev)
 
 			r = clk_enable(tll->ch_clk[i]);
 			if (r) {
-				dev_err(dev,
+				dev_err(tll_dev,
 				 "Error enabling ch %d clock: %d\n", i, r);
 			}
 		}
 	}
 
+	spin_unlock(&tll_lock);
+
 	return 0;
 }
+EXPORT_SYMBOL_GPL(omap_tll_enable);
 
-static int usbtll_runtime_suspend(struct device *dev)
+int omap_tll_disable(struct usbhs_omap_platform_data *pdata)
 {
-	struct usbtll_omap			*tll = dev_get_drvdata(dev);
-	struct usbhs_omap_platform_data		*pdata = tll->pdata;
 	int i;
+	struct usbtll_omap *tll;
+
+	spin_lock(&tll_lock);
+
+	if (!tll_dev) {
+		spin_unlock(&tll_lock);
+		return -ENODEV;
+	}
 
-	dev_dbg(dev, "usbtll_runtime_suspend\n");
+	tll = dev_get_drvdata(tll_dev);
 
 	for (i = 0; i < tll->nch; i++) {
 		if (omap_usb_mode_needs_tll(pdata->port_mode[i])) {
@@ -415,60 +458,11 @@ static int usbtll_runtime_suspend(struct device *dev)
 		}
 	}
 
-	return 0;
-}
-
-static const struct dev_pm_ops usbtllomap_dev_pm_ops = {
-	SET_RUNTIME_PM_OPS(usbtll_runtime_suspend,
-			   usbtll_runtime_resume,
-			   NULL)
-};
-
-static struct platform_driver usbtll_omap_driver = {
-	.driver = {
-		.name		= (char *)usbtll_driver_name,
-		.owner		= THIS_MODULE,
-		.pm		= &usbtllomap_dev_pm_ops,
-	},
-	.probe		= usbtll_omap_probe,
-	.remove		= usbtll_omap_remove,
-};
-
-int omap_tll_enable(void)
-{
-	int ret;
-
-	spin_lock(&tll_lock);
-
-	if (!tll_dev) {
-		pr_err("%s: OMAP USB TLL not initialized\n", __func__);
-		ret = -ENODEV;
-	} else {
-		ret = pm_runtime_get_sync(tll_dev);
-	}
+	pm_runtime_put_sync(tll_dev);
 
 	spin_unlock(&tll_lock);
 
-	return ret;
-}
-EXPORT_SYMBOL_GPL(omap_tll_enable);
-
-int omap_tll_disable(void)
-{
-	int ret;
-
-	spin_lock(&tll_lock);
-
-	if (!tll_dev) {
-		pr_err("%s: OMAP USB TLL not initialized\n", __func__);
-		ret = -ENODEV;
-	} else {
-		ret = pm_runtime_put_sync(tll_dev);
-	}
-
-	spin_unlock(&tll_lock);
-
-	return ret;
+	return 0;
 }
 EXPORT_SYMBOL_GPL(omap_tll_disable);
 
diff --git a/drivers/mfd/omap-usb.h b/drivers/mfd/omap-usb.h
index 972aa961b064..2a508b6aeac8 100644
--- a/drivers/mfd/omap-usb.h
+++ b/drivers/mfd/omap-usb.h
@@ -1,2 +1,3 @@
-extern int omap_tll_enable(void);
-extern int omap_tll_disable(void);
+extern int omap_tll_init(struct usbhs_omap_platform_data *pdata);
+extern int omap_tll_enable(struct usbhs_omap_platform_data *pdata);
+extern int omap_tll_disable(struct usbhs_omap_platform_data *pdata);
-- 
cgit v1.2.3


From 48130b8f5c6d77608257dc50bf914bd77f0b41a0 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Tue, 29 Jan 2013 15:20:55 +0200
Subject: mfd: omap-usb-tll: Add device tree support and binding information

Allows the OMAP USB TLL module to be specified via device tree.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 Documentation/devicetree/bindings/mfd/omap-usb-tll.txt | 17 +++++++++++++++++
 drivers/mfd/omap-usb-tll.c                             | 10 ++++++++++
 2 files changed, 27 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/omap-usb-tll.txt

(limited to 'drivers/mfd')

diff --git a/Documentation/devicetree/bindings/mfd/omap-usb-tll.txt b/Documentation/devicetree/bindings/mfd/omap-usb-tll.txt
new file mode 100644
index 000000000000..62fe69724e3b
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/omap-usb-tll.txt
@@ -0,0 +1,17 @@
+OMAP HS USB Host TLL (Transceiver-Less Interface)
+
+Required properties:
+
+- compatible : should be "ti,usbhs-tll"
+- reg : should contain one register range i.e. start and length
+- interrupts : should contain the TLL module's interrupt
+- ti,hwmod : must contain "usb_tll_hs"
+
+Example:
+
+	usbhstll: usbhstll@4a062000 {
+		compatible = "ti,usbhs-tll";
+		reg = <0x4a062000 0x1000>;
+		interrupts = <78>;
+		ti,hwmods = "usb_tll_hs";
+	  };
diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c
index f7d2568729c1..8f4d5a1fcd1a 100644
--- a/drivers/mfd/omap-usb-tll.c
+++ b/drivers/mfd/omap-usb-tll.c
@@ -28,6 +28,7 @@
 #include <linux/err.h>
 #include <linux/pm_runtime.h>
 #include <linux/platform_data/usb-omap.h>
+#include <linux/of.h>
 
 #define USBTLL_DRIVER_NAME	"usbhs_tll"
 
@@ -311,10 +312,18 @@ static int usbtll_omap_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct of_device_id usbtll_omap_dt_ids[] = {
+	{ .compatible = "ti,usbhs-tll" },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(of, usbtll_omap_dt_ids);
+
 static struct platform_driver usbtll_omap_driver = {
 	.driver = {
 		.name		= (char *)usbtll_driver_name,
 		.owner		= THIS_MODULE,
+		.of_match_table = of_match_ptr(usbtll_omap_dt_ids),
 	},
 	.probe		= usbtll_omap_probe,
 	.remove		= usbtll_omap_remove,
@@ -467,6 +476,7 @@ int omap_tll_disable(struct usbhs_omap_platform_data *pdata)
 EXPORT_SYMBOL_GPL(omap_tll_disable);
 
 MODULE_AUTHOR("Keshava Munegowda <keshava_mgowda@ti.com>");
+MODULE_AUTHOR("Roger Quadros <rogerq@ti.com>");
 MODULE_ALIAS("platform:" USBHS_DRIVER_NAME);
 MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("usb tll driver for TI OMAP EHCI and OHCI controllers");
-- 
cgit v1.2.3


From 3cec5f4e7536de1c2c1e9ae6be9bf2d62c783262 Mon Sep 17 00:00:00 2001
From: Ashish Jangam <ashish.jangam@kpitcummins.com>
Date: Mon, 18 Mar 2013 14:42:38 +0530
Subject: mfd: da9055: Change irq state to default

This patch changes the irq state from high to the now default low.
Because the default PMIC irq state of DA9055 got changed from high to low.
This change should not affect any of the existing users since all of them
use active low state.

This patch has been tested on smdkv6410.

Signed-off-by: Ashish <ashish.jangam@kpitcummins.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/da9055-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/da9055-core.c b/drivers/mfd/da9055-core.c
index f56a1a9f7777..49cb23d37469 100644
--- a/drivers/mfd/da9055-core.c
+++ b/drivers/mfd/da9055-core.c
@@ -391,7 +391,7 @@ int da9055_device_init(struct da9055 *da9055)
 		da9055->irq_base = pdata->irq_base;
 
 	ret = regmap_add_irq_chip(da9055->regmap, da9055->chip_irq,
-				  IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
+				  IRQF_TRIGGER_LOW | IRQF_ONESHOT,
 				  da9055->irq_base, &da9055_regmap_irq_chip,
 				  &da9055->irq_data);
 	if (ret < 0)
-- 
cgit v1.2.3


From d95c785500f60c59e4257385af2cfee7d4044809 Mon Sep 17 00:00:00 2001
From: Paul Bolle <pebolle@tiscali.nl>
Date: Wed, 20 Mar 2013 10:09:39 +0100
Subject: mfd: Remove twelve unused Kconfig symbols

Twelve Kconfig symbols, all related to WM8350, WM8351, and WM8352, are
unused. Commit 19d57ed5a308472a02e773f33c03ad4cb2ec6a9 ("mfd: Remove
custom wm8350 cache implementation") removed all their (actual) users.
Remove these symbols too.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 arch/arm/mach-imx/Kconfig     |  2 --
 arch/arm/mach-s3c64xx/Kconfig |  3 ---
 drivers/mfd/Kconfig           | 48 -------------------------------------------
 3 files changed, 53 deletions(-)

(limited to 'drivers/mfd')

diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 4c9c6f9d2c55..6d9ae09e2494 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -481,8 +481,6 @@ config MACH_MX31ADS_WM1133_EV1
 	depends on MACH_MX31ADS
 	depends on MFD_WM8350_I2C
 	depends on REGULATOR_WM8350 = y
-	select MFD_WM8350_CONFIG_MODE_0
-	select MFD_WM8352_CONFIG_MODE_0
 	help
 	  Include support for the Wolfson Microelectronics 1133-EV1 PMU
 	  and audio module for the MX31ADS platform.
diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig
index 131c86284711..041da5172423 100644
--- a/arch/arm/mach-s3c64xx/Kconfig
+++ b/arch/arm/mach-s3c64xx/Kconfig
@@ -198,10 +198,7 @@ endchoice
 config SMDK6410_WM1190_EV1
 	bool "Support Wolfson Microelectronics 1190-EV1 PMIC card"
 	depends on MACH_SMDK6410
-	select MFD_WM8350_CONFIG_MODE_0
-	select MFD_WM8350_CONFIG_MODE_3
 	select MFD_WM8350_I2C
-	select MFD_WM8352_CONFIG_MODE_0
 	select REGULATOR
 	select REGULATOR_WM8350
 	select SAMSUNG_GPIO_EXTRA64
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index cc7f6a234ac8..533ce2c9435b 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -715,54 +715,6 @@ config MFD_WM8350
 	bool
 	depends on GENERIC_HARDIRQS
 
-config MFD_WM8350_CONFIG_MODE_0
-	bool
-	depends on MFD_WM8350
-
-config MFD_WM8350_CONFIG_MODE_1
-	bool
-	depends on MFD_WM8350
-
-config MFD_WM8350_CONFIG_MODE_2
-	bool
-	depends on MFD_WM8350
-
-config MFD_WM8350_CONFIG_MODE_3
-	bool
-	depends on MFD_WM8350
-
-config MFD_WM8351_CONFIG_MODE_0
-	bool
-	depends on MFD_WM8350
-
-config MFD_WM8351_CONFIG_MODE_1
-	bool
-	depends on MFD_WM8350
-
-config MFD_WM8351_CONFIG_MODE_2
-	bool
-	depends on MFD_WM8350
-
-config MFD_WM8351_CONFIG_MODE_3
-	bool
-	depends on MFD_WM8350
-
-config MFD_WM8352_CONFIG_MODE_0
-	bool
-	depends on MFD_WM8350
-
-config MFD_WM8352_CONFIG_MODE_1
-	bool
-	depends on MFD_WM8350
-
-config MFD_WM8352_CONFIG_MODE_2
-	bool
-	depends on MFD_WM8350
-
-config MFD_WM8352_CONFIG_MODE_3
-	bool
-	depends on MFD_WM8350
-
 config MFD_WM8350_I2C
 	bool "Support Wolfson Microelectronics WM8350 with I2C"
 	select MFD_WM8350
-- 
cgit v1.2.3


From 7a93fb375437225ee89a15652a887547450f3d2a Mon Sep 17 00:00:00 2001
From: Fabio Baltieri <fabio.baltieri@linaro.org>
Date: Thu, 21 Mar 2013 14:49:44 +0100
Subject: mfd: ab8500-core: Ignore masked out interrupts

AB8500 asserts LATCH bits for masked out interrupts.  This patch
explicitly masks those out using the cached mask value to prevent
handle_nested_irq() being called for masked IRQ on the same register as
unmasked ones.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/ab8500-core.c | 27 ++++++++++++++-------------
 1 file changed, 14 insertions(+), 13 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index f276352cc9ef..36751f37dd52 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -458,22 +458,23 @@ static void update_latch_offset(u8 *offset, int i)
 static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500,
 					int latch_offset, u8 latch_val)
 {
-	int int_bit = __ffs(latch_val);
-	int line, i;
+	int int_bit, line, i;
 
-	do {
-		int_bit = __ffs(latch_val);
+	for (i = 0; i < ab8500->mask_size; i++)
+		if (ab8500->irq_reg_offset[i] == latch_offset)
+			break;
 
-		for (i = 0; i < ab8500->mask_size; i++)
-			if (ab8500->irq_reg_offset[i] == latch_offset)
-				break;
+	if (i >= ab8500->mask_size) {
+		dev_err(ab8500->dev, "Register offset 0x%2x not declared\n",
+				latch_offset);
+		return -ENXIO;
+	}
 
-		if (i >= ab8500->mask_size) {
-			dev_err(ab8500->dev, "Register offset 0x%2x not declared\n",
-					latch_offset);
-			return -ENXIO;
-		}
+	/* ignore masked out interrupts */
+	latch_val &= ~ab8500->mask[i];
 
+	while (latch_val) {
+		int_bit = __ffs(latch_val);
 		line = (i << 3) + int_bit;
 		latch_val &= ~(1 << int_bit);
 
@@ -491,7 +492,7 @@ static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500,
 			line += 1;
 
 		handle_nested_irq(ab8500->irq_base + line);
-	} while (latch_val);
+	}
 
 	return 0;
 }
-- 
cgit v1.2.3


From 6394678e6e563b196122e911daa911973f9cf7ab Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Fri, 22 Mar 2013 12:40:22 +0100
Subject: mfd: wm8994: Don't use system PM operations

For realistic systems the power management is controlled entirely via
runtime PM - if the device is not runtime suspended then the suspend
will abort without doing anything as functionality such as accessory
detection or audio bypass will require the device to be enabled while
if the device is runtime suspended it is already in the lowest power
state. This means that system suspend is redundant and can be removed
which avoids issues with attempting to double disable the regulators.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/wm8994-core.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index 97e929e76810..cdea84e727e5 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -191,7 +191,7 @@ static const char *wm8958_main_supplies[] = {
 	"SPKVDD2",
 };
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_RUNTIME
 static int wm8994_suspend(struct device *dev)
 {
 	struct wm8994 *wm8994 = dev_get_drvdata(dev);
@@ -724,8 +724,9 @@ static const struct i2c_device_id wm8994_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, wm8994_i2c_id);
 
-static UNIVERSAL_DEV_PM_OPS(wm8994_pm_ops, wm8994_suspend, wm8994_resume,
-			    NULL);
+static const struct dev_pm_ops wm8994_pm_ops = {
+	SET_RUNTIME_PM_OPS(wm8994_suspend, wm8994_resume, NULL)
+};
 
 static struct i2c_driver wm8994_i2c_driver = {
 	.driver = {
-- 
cgit v1.2.3


From 40b0d68a8c39c6d6cb7e975c9b180e2203864556 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Tue, 9 Apr 2013 11:39:17 +0300
Subject: mfd: omap-usb-host: Remove PHY reset handling code

PHY reset GPIO handling will be done in the PHY driver

Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/omap-usb-host.c | 28 ----------------------------
 1 file changed, 28 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index eb5db28b3fbd..138ee982996c 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -430,24 +430,10 @@ static unsigned omap_usbhs_rev2_hostconfig(struct usbhs_hcd_omap *omap,
 static void omap_usbhs_init(struct device *dev)
 {
 	struct usbhs_hcd_omap		*omap = dev_get_drvdata(dev);
-	struct usbhs_omap_platform_data	*pdata = omap->pdata;
 	unsigned			reg;
 
 	dev_dbg(dev, "starting TI HSUSB Controller\n");
 
-	if (pdata->phy_reset) {
-		if (gpio_is_valid(pdata->reset_gpio_port[0]))
-			devm_gpio_request_one(dev, pdata->reset_gpio_port[0],
-					 GPIOF_OUT_INIT_LOW, "USB1 PHY reset");
-
-		if (gpio_is_valid(pdata->reset_gpio_port[1]))
-			devm_gpio_request_one(dev, pdata->reset_gpio_port[1],
-					 GPIOF_OUT_INIT_LOW, "USB2 PHY reset");
-
-		/* Hold the PHY in RESET for enough time till DIR is high */
-		udelay(10);
-	}
-
 	pm_runtime_get_sync(dev);
 
 	reg = usbhs_read(omap->uhh_base, OMAP_UHH_HOSTCONFIG);
@@ -476,20 +462,6 @@ static void omap_usbhs_init(struct device *dev)
 	dev_dbg(dev, "UHH setup done, uhh_hostconfig=%x\n", reg);
 
 	pm_runtime_put_sync(dev);
-	if (pdata->phy_reset) {
-		/* Hold the PHY in RESET for enough time till
-		 * PHY is settled and ready
-		 */
-		udelay(10);
-
-		if (gpio_is_valid(pdata->reset_gpio_port[0]))
-			gpio_set_value_cansleep
-				(pdata->reset_gpio_port[0], 1);
-
-		if (gpio_is_valid(pdata->reset_gpio_port[1]))
-			gpio_set_value_cansleep
-				(pdata->reset_gpio_port[1], 1);
-	}
 }
 
 /**
-- 
cgit v1.2.3


From 03a8f438f55c7abaaa1ddf5422a6c4abd1bdc1f6 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Tue, 9 Apr 2013 11:39:18 +0300
Subject: mfd: omap-usb-host: Add device tree support and binding information

Allows the OMAP HS USB host controller to be specified
via device tree.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 .../devicetree/bindings/mfd/omap-usb-host.txt      |  80 ++++++++++
 drivers/mfd/omap-usb-host.c                        | 161 ++++++++++++++++++++-
 2 files changed, 235 insertions(+), 6 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mfd/omap-usb-host.txt

(limited to 'drivers/mfd')

diff --git a/Documentation/devicetree/bindings/mfd/omap-usb-host.txt b/Documentation/devicetree/bindings/mfd/omap-usb-host.txt
new file mode 100644
index 000000000000..b381fa696bf9
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/omap-usb-host.txt
@@ -0,0 +1,80 @@
+OMAP HS USB Host
+
+Required properties:
+
+- compatible: should be "ti,usbhs-host"
+- reg: should contain one register range i.e. start and length
+- ti,hwmods: must contain "usb_host_hs"
+
+Optional properties:
+
+- num-ports: number of USB ports. Usually this is automatically detected
+  from the IP's revision register but can be overridden by specifying
+  this property. A maximum of 3 ports are supported at the moment.
+
+- portN-mode: String specifying the port mode for port N, where N can be
+  from 1 to 3. If the port mode is not specified, that port is treated
+  as unused. When specified, it must be one of the following.
+	"ehci-phy",
+        "ehci-tll",
+        "ehci-hsic",
+        "ohci-phy-6pin-datse0",
+        "ohci-phy-6pin-dpdm",
+        "ohci-phy-3pin-datse0",
+        "ohci-phy-4pin-dpdm",
+        "ohci-tll-6pin-datse0",
+        "ohci-tll-6pin-dpdm",
+        "ohci-tll-3pin-datse0",
+        "ohci-tll-4pin-dpdm",
+        "ohci-tll-2pin-datse0",
+        "ohci-tll-2pin-dpdm",
+
+- single-ulpi-bypass: Must be present if the controller contains a single
+  ULPI bypass control bit. e.g. OMAP3 silicon <= ES2.1
+
+Required properties if child node exists:
+
+- #address-cells: Must be 1
+- #size-cells: Must be 1
+- ranges: must be present
+
+Properties for children:
+
+The OMAP HS USB Host subsystem contains EHCI and OHCI controllers.
+See Documentation/devicetree/bindings/usb/omap-ehci.txt and
+omap3-ohci.txt
+
+Example for OMAP4:
+
+usbhshost: usbhshost@4a064000 {
+	compatible = "ti,usbhs-host";
+	reg = <0x4a064000 0x800>;
+	ti,hwmods = "usb_host_hs";
+	#address-cells = <1>;
+	#size-cells = <1>;
+	ranges;
+
+	usbhsohci: ohci@4a064800 {
+		compatible = "ti,ohci-omap3", "usb-ohci";
+		reg = <0x4a064800 0x400>;
+		interrupt-parent = <&gic>;
+		interrupts = <0 76 0x4>;
+	};
+
+	usbhsehci: ehci@4a064c00 {
+		compatible = "ti,ehci-omap", "usb-ehci";
+		reg = <0x4a064c00 0x400>;
+		interrupt-parent = <&gic>;
+		interrupts = <0 77 0x4>;
+	};
+};
+
+&usbhshost {
+	port1-mode = "ehci-phy";
+	port2-mode = "ehci-tll";
+	port3-mode = "ehci-phy";
+};
+
+&usbhsehci {
+	phys = <&hsusb1_phy 0 &hsusb3_phy>;
+};
diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index 138ee982996c..d3b6e9491b62 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -1,8 +1,9 @@
 /**
  * omap-usb-host.c - The USBHS core driver for OMAP EHCI & OHCI
  *
- * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com
+ * Copyright (C) 2011-2013 Texas Instruments Incorporated - http://www.ti.com
  * Author: Keshava Munegowda <keshava_mgowda@ti.com>
+ * Author: Roger Quadros <rogerq@ti.com>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2  of
@@ -27,6 +28,8 @@
 #include <linux/platform_device.h>
 #include <linux/platform_data/usb-omap.h>
 #include <linux/pm_runtime.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
 
 #include "omap-usb.h"
 
@@ -137,6 +140,49 @@ static inline u8 usbhs_readb(void __iomem *base, u8 reg)
 
 /*-------------------------------------------------------------------------*/
 
+/**
+ * Map 'enum usbhs_omap_port_mode' found in <linux/platform_data/usb-omap.h>
+ * to the device tree binding portN-mode found in
+ * 'Documentation/devicetree/bindings/mfd/omap-usb-host.txt'
+ */
+static const char * const port_modes[] = {
+	[OMAP_USBHS_PORT_MODE_UNUSED]	= "",
+	[OMAP_EHCI_PORT_MODE_PHY]	= "ehci-phy",
+	[OMAP_EHCI_PORT_MODE_TLL]	= "ehci-tll",
+	[OMAP_EHCI_PORT_MODE_HSIC]	= "ehci-hsic",
+	[OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0]	= "ohci-phy-6pin-datse0",
+	[OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM]	= "ohci-phy-6pin-dpdm",
+	[OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0]	= "ohci-phy-3pin-datse0",
+	[OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM]	= "ohci-phy-4pin-dpdm",
+	[OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0]	= "ohci-tll-6pin-datse0",
+	[OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM]	= "ohci-tll-6pin-dpdm",
+	[OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0]	= "ohci-tll-3pin-datse0",
+	[OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM]	= "ohci-tll-4pin-dpdm",
+	[OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0]	= "ohci-tll-2pin-datse0",
+	[OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM]	= "ohci-tll-2pin-dpdm",
+};
+
+/**
+ * omap_usbhs_get_dt_port_mode - Get the 'enum usbhs_omap_port_mode'
+ * from the port mode string.
+ * @mode: The port mode string, usually obtained from device tree.
+ *
+ * The function returns the 'enum usbhs_omap_port_mode' that matches the
+ * provided port mode string as per the port_modes table.
+ * If no match is found it returns -ENODEV
+ */
+static const int omap_usbhs_get_dt_port_mode(const char *mode)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(port_modes); i++) {
+		if (!strcmp(mode, port_modes[i]))
+			return i;
+	}
+
+	return -ENODEV;
+}
+
 static struct platform_device *omap_usbhs_alloc_child(const char *name,
 			struct resource	*res, int num_resources, void *pdata,
 			size_t pdata_size, struct device *dev)
@@ -464,6 +510,58 @@ static void omap_usbhs_init(struct device *dev)
 	pm_runtime_put_sync(dev);
 }
 
+static int usbhs_omap_get_dt_pdata(struct device *dev,
+					struct usbhs_omap_platform_data *pdata)
+{
+	int ret, i;
+	struct device_node *node = dev->of_node;
+
+	ret = of_property_read_u32(node, "num-ports", &pdata->nports);
+	if (ret)
+		pdata->nports = 0;
+
+	if (pdata->nports > OMAP3_HS_USB_PORTS) {
+		dev_warn(dev, "Too many num_ports <%d> in device tree. Max %d\n",
+				pdata->nports, OMAP3_HS_USB_PORTS);
+		return -ENODEV;
+	}
+
+	/* get port modes */
+	for (i = 0; i < OMAP3_HS_USB_PORTS; i++) {
+		char prop[11];
+		const char *mode;
+
+		pdata->port_mode[i] = OMAP_USBHS_PORT_MODE_UNUSED;
+
+		snprintf(prop, sizeof(prop), "port%d-mode", i + 1);
+		ret = of_property_read_string(node, prop, &mode);
+		if (ret < 0)
+			continue;
+
+		ret = omap_usbhs_get_dt_port_mode(mode);
+		if (ret < 0) {
+			dev_warn(dev, "Invalid port%d-mode \"%s\" in device tree\n",
+					i, mode);
+			return -ENODEV;
+		}
+
+		dev_dbg(dev, "port%d-mode: %s -> %d\n", i, mode, ret);
+		pdata->port_mode[i] = ret;
+	}
+
+	/* get flags */
+	pdata->single_ulpi_bypass = of_property_read_bool(node,
+						"single-ulpi-bypass");
+
+	return 0;
+}
+
+static struct of_device_id usbhs_child_match_table[] = {
+	{ .compatible = "ti,omap-ehci", },
+	{ .compatible = "ti,omap-ohci", },
+	{ }
+};
+
 /**
  * usbhs_omap_probe - initialize TI-based HCDs
  *
@@ -479,18 +577,37 @@ static int usbhs_omap_probe(struct platform_device *pdev)
 	int				i;
 	bool				need_logic_fck;
 
+	if (dev->of_node) {
+		/* For DT boot we populate platform data from OF node */
+		pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+		if (!pdata)
+			return -ENOMEM;
+
+		ret = usbhs_omap_get_dt_pdata(dev, pdata);
+		if (ret)
+			return ret;
+
+		dev->platform_data = pdata;
+	}
+
 	if (!pdata) {
 		dev_err(dev, "Missing platform data\n");
 		return -ENODEV;
 	}
 
+	if (pdata->nports > OMAP3_HS_USB_PORTS) {
+		dev_info(dev, "Too many num_ports <%d> in platform_data. Max %d\n",
+				pdata->nports, OMAP3_HS_USB_PORTS);
+		return -ENODEV;
+	}
+
 	omap = devm_kzalloc(dev, sizeof(*omap), GFP_KERNEL);
 	if (!omap) {
 		dev_err(dev, "Memory allocation failed\n");
 		return -ENOMEM;
 	}
 
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "uhh");
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	omap->uhh_base = devm_request_and_ioremap(dev, res);
 	if (!omap->uhh_base) {
 		dev_err(dev, "Resource request/ioremap failed\n");
@@ -661,10 +778,23 @@ static int usbhs_omap_probe(struct platform_device *pdev)
 	}
 
 	omap_usbhs_init(dev);
-	ret = omap_usbhs_alloc_children(pdev);
-	if (ret) {
-		dev_err(dev, "omap_usbhs_alloc_children failed\n");
-		goto err_alloc;
+
+	if (dev->of_node) {
+		ret = of_platform_populate(dev->of_node,
+				usbhs_child_match_table, NULL, dev);
+
+		if (ret) {
+			dev_err(dev, "Failed to create DT children: %d\n", ret);
+			goto err_alloc;
+		}
+
+	} else {
+		ret = omap_usbhs_alloc_children(pdev);
+		if (ret) {
+			dev_err(dev, "omap_usbhs_alloc_children failed: %d\n",
+						ret);
+			goto err_alloc;
+		}
 	}
 
 	return 0;
@@ -703,6 +833,13 @@ err_mem:
 	return ret;
 }
 
+static int usbhs_omap_remove_child(struct device *dev, void *data)
+{
+	dev_info(dev, "unregistering\n");
+	platform_device_unregister(to_platform_device(dev));
+	return 0;
+}
+
 /**
  * usbhs_omap_remove - shutdown processing for UHH & TLL HCDs
  * @pdev: USB Host Controller being removed
@@ -734,6 +871,8 @@ static int usbhs_omap_remove(struct platform_device *pdev)
 
 	pm_runtime_disable(&pdev->dev);
 
+	/* remove children */
+	device_for_each_child(&pdev->dev, NULL, usbhs_omap_remove_child);
 	return 0;
 }
 
@@ -742,16 +881,26 @@ static const struct dev_pm_ops usbhsomap_dev_pm_ops = {
 	.runtime_resume		= usbhs_runtime_resume,
 };
 
+static const struct of_device_id usbhs_omap_dt_ids[] = {
+	{ .compatible = "ti,usbhs-host" },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(of, usbhs_omap_dt_ids);
+
+
 static struct platform_driver usbhs_omap_driver = {
 	.driver = {
 		.name		= (char *)usbhs_driver_name,
 		.owner		= THIS_MODULE,
 		.pm		= &usbhsomap_dev_pm_ops,
+		.of_match_table = of_match_ptr(usbhs_omap_dt_ids),
 	},
 	.remove		= usbhs_omap_remove,
 };
 
 MODULE_AUTHOR("Keshava Munegowda <keshava_mgowda@ti.com>");
+MODULE_AUTHOR("Roger Quadros <rogerq@ti.com>");
 MODULE_ALIAS("platform:" USBHS_DRIVER_NAME);
 MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("usb host common core driver for omap EHCI and OHCI");
-- 
cgit v1.2.3


From f201f730b82393aa4969171d724025a82f7099da Mon Sep 17 00:00:00 2001
From: Fabio Baltieri <fabio.baltieri@linaro.org>
Date: Tue, 9 Apr 2013 10:57:21 +0200
Subject: mfd: ab8500-core: Add of_compatilbe property for ab8500-usb

Add of_comptabile string to the ab8500-usb cell to allow the driver to
grab properties from device-tree when available.

Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/ab8500-core.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index 36751f37dd52..8e8a016effe9 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -1108,6 +1108,7 @@ static struct mfd_cell ab8500_devs[] = {
 	},
 	{
 		.name = "ab8500-usb",
+		.of_compatible = "stericsson,ab8500-usb",
 		.num_resources = ARRAY_SIZE(ab8500_usb_resources),
 		.resources = ab8500_usb_resources,
 	},
-- 
cgit v1.2.3


From 741cdecfc5255085d348ccaad1d1befbd6ae9222 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 4 Apr 2013 11:39:00 +0100
Subject: mfd: db8500-prcmu: Return early if the TCPM cannot be located

Currently we check to see if we obtained the Tightly Coupled Program
Memory (TCPM) base and only execute the code within the check if we
have it. It's more traditional to return early if we don't have it.
This way we can flatten most of the function's code down to a single
tab spacing.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/db8500-prcmu.c | 40 +++++++++++++++++++++-------------------
 1 file changed, 21 insertions(+), 19 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c
index 21434beb420a..25dda8d7cb00 100644
--- a/drivers/mfd/db8500-prcmu.c
+++ b/drivers/mfd/db8500-prcmu.c
@@ -2704,6 +2704,7 @@ static void dbx500_fw_version_init(struct platform_device *pdev,
 {
 	struct resource *res;
 	void __iomem *tcpm_base;
+	u32 version;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
 					   "prcmu-tcpm");
@@ -2713,26 +2714,27 @@ static void dbx500_fw_version_init(struct platform_device *pdev,
 		return;
 	}
 	tcpm_base = ioremap(res->start, resource_size(res));
-	if (tcpm_base != NULL) {
-		u32 version;
-
-		version = readl(tcpm_base + version_offset);
-		fw_info.version.project = (version & 0xFF);
-		fw_info.version.api_version = (version >> 8) & 0xFF;
-		fw_info.version.func_version = (version >> 16) & 0xFF;
-		fw_info.version.errata = (version >> 24) & 0xFF;
-		strncpy(fw_info.version.project_name,
-			fw_project_name(fw_info.version.project),
-			PRCMU_FW_PROJECT_NAME_LEN);
-		fw_info.valid = true;
-		pr_info("PRCMU firmware: %s(%d), version %d.%d.%d\n",
-			fw_info.version.project_name,
-			fw_info.version.project,
-			fw_info.version.api_version,
-			fw_info.version.func_version,
-			fw_info.version.errata);
-		iounmap(tcpm_base);
+	if (!tcpm_base) {
+		dev_err(&pdev->dev, "no prcmu tcpm mem region provided\n");
+		return;
 	}
+
+	version = readl(tcpm_base + version_offset);
+	fw_info.version.project = (version & 0xFF);
+	fw_info.version.api_version = (version >> 8) & 0xFF;
+	fw_info.version.func_version = (version >> 16) & 0xFF;
+	fw_info.version.errata = (version >> 24) & 0xFF;
+	strncpy(fw_info.version.project_name,
+		fw_project_name(fw_info.version.project),
+		PRCMU_FW_PROJECT_NAME_LEN);
+	fw_info.valid = true;
+	pr_info("PRCMU firmware: %s(%d), version %d.%d.%d\n",
+		fw_info.version.project_name,
+		fw_info.version.project,
+		fw_info.version.api_version,
+		fw_info.version.func_version,
+		fw_info.version.errata);
+	iounmap(tcpm_base);
 }
 
 void __init db8500_prcmu_early_init(u32 phy_base, u32 size)
-- 
cgit v1.2.3


From caa62d642634e25cf4316b286abac54a70fd5a6a Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 3 Apr 2013 01:06:27 +0200
Subject: mfd: ab8500: sysctrl: Initialize driver at arch_initcall

The abx500-clk driver is initiated at arch_initcall level. Moreover it
is relying on the ab8500-sysctrl API to be available. Therefore move
ab8500-sysctrl to arch_initcall level as well. The device is already
added before the abx500 clk device, thus it will be probed before as
well, which is exactly what we want.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/ab8500-sysctrl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/ab8500-sysctrl.c b/drivers/mfd/ab8500-sysctrl.c
index 272479cdb107..fbca1ced49fa 100644
--- a/drivers/mfd/ab8500-sysctrl.c
+++ b/drivers/mfd/ab8500-sysctrl.c
@@ -242,7 +242,7 @@ static int __init ab8500_sysctrl_init(void)
 {
 	return platform_driver_register(&ab8500_sysctrl_driver);
 }
-subsys_initcall(ab8500_sysctrl_init);
+arch_initcall(ab8500_sysctrl_init);
 
 MODULE_AUTHOR("Mattias Nilsson <mattias.i.nilsson@stericsson.com");
 MODULE_DESCRIPTION("AB8500 system control driver");
-- 
cgit v1.2.3


From b99877f3f7e1c8b7e6d133b56c8bcea4e2f7be80 Mon Sep 17 00:00:00 2001
From: Pawel Moll <pawel.moll@arm.com>
Date: Wed, 3 Apr 2013 13:26:27 +0100
Subject: mfd: vexpress: Give the "leds-gpio" device a real parent

The registration of the "leds-gpio" device was using
"vexpress_sysreg_dev" as a parent before it was actually
set to something different than NULL.

Trivial fix by reordering the code.

Reported-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/vexpress-sysreg.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/vexpress-sysreg.c b/drivers/mfd/vexpress-sysreg.c
index bf75e967a1f3..96a020b1dcd1 100644
--- a/drivers/mfd/vexpress-sysreg.c
+++ b/drivers/mfd/vexpress-sysreg.c
@@ -490,12 +490,12 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
 		return err;
 	}
 
+	vexpress_sysreg_dev = &pdev->dev;
+
 	platform_device_register_data(vexpress_sysreg_dev, "leds-gpio",
 			PLATFORM_DEVID_AUTO, &vexpress_sysreg_leds_pdata,
 			sizeof(vexpress_sysreg_leds_pdata));
 
-	vexpress_sysreg_dev = &pdev->dev;
-
 	device_create_file(vexpress_sysreg_dev, &dev_attr_sys_id);
 
 	return 0;
-- 
cgit v1.2.3


From 0c0d2ab069fa668daeda4204580e359dba178169 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Sat, 6 Apr 2013 15:42:48 +0900
Subject: mfd: wm831x: Use spi_get_drvdata() and spi_set_drvdata()

Use the wrapper functions for getting and setting the driver data using
spi_device instead of using dev_{get|set}_drvdata with &spi->dev, so we
can directly pass a struct spi_device.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/wm831x-spi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/wm831x-spi.c b/drivers/mfd/wm831x-spi.c
index 4e70e157a909..e7ed14f661d8 100644
--- a/drivers/mfd/wm831x-spi.c
+++ b/drivers/mfd/wm831x-spi.c
@@ -37,7 +37,7 @@ static int wm831x_spi_probe(struct spi_device *spi)
 	spi->bits_per_word = 16;
 	spi->mode = SPI_MODE_0;
 
-	dev_set_drvdata(&spi->dev, wm831x);
+	spi_set_drvdata(spi, wm831x);
 	wm831x->dev = &spi->dev;
 
 	wm831x->regmap = devm_regmap_init_spi(spi, &wm831x_regmap_config);
@@ -53,7 +53,7 @@ static int wm831x_spi_probe(struct spi_device *spi)
 
 static int wm831x_spi_remove(struct spi_device *spi)
 {
-	struct wm831x *wm831x = dev_get_drvdata(&spi->dev);
+	struct wm831x *wm831x = spi_get_drvdata(spi);
 
 	wm831x_device_exit(wm831x);
 
@@ -69,7 +69,7 @@ static int wm831x_spi_suspend(struct device *dev)
 
 static void wm831x_spi_shutdown(struct spi_device *spi)
 {
-	struct wm831x *wm831x = dev_get_drvdata(&spi->dev);
+	struct wm831x *wm831x = spi_get_drvdata(spi);
 
 	wm831x_device_shutdown(wm831x);
 }
-- 
cgit v1.2.3


From 1b1ba09c39a7262f322290820ad8f29f964b9eee Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Sat, 6 Apr 2013 15:43:23 +0900
Subject: mfd: da9052: Use spi_get_drvdata() and spi_set_drvdata()

Use the wrapper functions for getting and setting the driver data using
spi_device instead of using dev_{get|set}_drvdata with &spi->dev, so we
can directly pass a struct spi_device.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/da9052-spi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/da9052-spi.c b/drivers/mfd/da9052-spi.c
index 61d63b93576c..0680bcbc53de 100644
--- a/drivers/mfd/da9052-spi.c
+++ b/drivers/mfd/da9052-spi.c
@@ -38,7 +38,7 @@ static int da9052_spi_probe(struct spi_device *spi)
 	da9052->dev = &spi->dev;
 	da9052->chip_irq = spi->irq;
 
-	dev_set_drvdata(&spi->dev, da9052);
+	spi_set_drvdata(spi, da9052);
 
 	da9052_regmap_config.read_flag_mask = 1;
 	da9052_regmap_config.write_flag_mask = 0;
@@ -60,7 +60,7 @@ static int da9052_spi_probe(struct spi_device *spi)
 
 static int da9052_spi_remove(struct spi_device *spi)
 {
-	struct da9052 *da9052 = dev_get_drvdata(&spi->dev);
+	struct da9052 *da9052 = spi_get_drvdata(spi);
 
 	da9052_device_exit(da9052);
 	return 0;
-- 
cgit v1.2.3


From 7c478b405837e91f68208b423acd20dad184998c Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Sat, 6 Apr 2013 15:43:48 +0900
Subject: mfd: ezx-pcap: Use spi_get_drvdata() and spi_set_drvdata()

Use the wrapper functions for getting and setting the driver data using
spi_device instead of using dev_{get|set}_drvdata with &spi->dev, so we
can directly pass a struct spi_device.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/ezx-pcap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
index f83cc3da9308..5502106ad515 100644
--- a/drivers/mfd/ezx-pcap.c
+++ b/drivers/mfd/ezx-pcap.c
@@ -393,7 +393,7 @@ static int pcap_add_subdev(struct pcap_chip *pcap,
 
 static int ezx_pcap_remove(struct spi_device *spi)
 {
-	struct pcap_chip *pcap = dev_get_drvdata(&spi->dev);
+	struct pcap_chip *pcap = spi_get_drvdata(spi);
 	struct pcap_platform_data *pdata = spi->dev.platform_data;
 	int i, adc_irq;
 
@@ -439,7 +439,7 @@ static int ezx_pcap_probe(struct spi_device *spi)
 	mutex_init(&pcap->adc_mutex);
 	INIT_WORK(&pcap->isr_work, pcap_isr_work);
 	INIT_WORK(&pcap->msr_work, pcap_msr_work);
-	dev_set_drvdata(&spi->dev, pcap);
+	spi_set_drvdata(spi, pcap);
 
 	/* setup spi */
 	spi->bits_per_word = 32;
-- 
cgit v1.2.3


From a720c3053322231d6fc6c5e7459ea1ea068904c4 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Sat, 6 Apr 2013 15:44:14 +0900
Subject: mfd: mc13xxx: Use spi_get_drvdata() and spi_set_drvdata()

Use the wrapper functions for getting and setting the driver data using
spi_device instead of using dev_{get|set}_drvdata with &spi->dev, so we
can directly pass a struct spi_device.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/mc13xxx-spi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/mc13xxx-spi.c b/drivers/mfd/mc13xxx-spi.c
index 3032bae20b62..77189daadf1e 100644
--- a/drivers/mfd/mc13xxx-spi.c
+++ b/drivers/mfd/mc13xxx-spi.c
@@ -131,7 +131,7 @@ static int mc13xxx_spi_probe(struct spi_device *spi)
 	if (!mc13xxx)
 		return -ENOMEM;
 
-	dev_set_drvdata(&spi->dev, mc13xxx);
+	spi_set_drvdata(spi, mc13xxx);
 	spi->mode = SPI_MODE_0 | SPI_CS_HIGH;
 
 	mc13xxx->dev = &spi->dev;
@@ -144,7 +144,7 @@ static int mc13xxx_spi_probe(struct spi_device *spi)
 		ret = PTR_ERR(mc13xxx->regmap);
 		dev_err(mc13xxx->dev, "Failed to initialize register map: %d\n",
 				ret);
-		dev_set_drvdata(&spi->dev, NULL);
+		spi_set_drvdata(spi, NULL);
 		return ret;
 	}
 
@@ -164,7 +164,7 @@ static int mc13xxx_spi_probe(struct spi_device *spi)
 
 static int mc13xxx_spi_remove(struct spi_device *spi)
 {
-	struct mc13xxx *mc13xxx = dev_get_drvdata(&spi->dev);
+	struct mc13xxx *mc13xxx = spi_get_drvdata(spi);
 
 	mc13xxx_common_cleanup(mc13xxx);
 
-- 
cgit v1.2.3


From e9642d5e162c2a219f770cf4a52b4c6b622879bb Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Sat, 6 Apr 2013 15:44:30 +0900
Subject: mfd: arizona: Use spi_get_drvdata()

Use the wrapper functions for getting and setting the driver data using
spi_device instead of using dev_{get|set}_drvdata with &spi->dev, so we
can directly pass a struct spi_device.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/arizona-spi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/arizona-spi.c b/drivers/mfd/arizona-spi.c
index 1b9fdd698b03..b57e642d2b4a 100644
--- a/drivers/mfd/arizona-spi.c
+++ b/drivers/mfd/arizona-spi.c
@@ -67,7 +67,7 @@ static int arizona_spi_probe(struct spi_device *spi)
 
 static int arizona_spi_remove(struct spi_device *spi)
 {
-	struct arizona *arizona = dev_get_drvdata(&spi->dev);
+	struct arizona *arizona = spi_get_drvdata(spi);
 	arizona_dev_exit(arizona);
 	return 0;
 }
-- 
cgit v1.2.3


From e65ad41e3b3f28316565ad0061b8152a3a8227ba Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Sat, 6 Apr 2013 15:44:51 +0900
Subject: mfd: stmpe: Use spi_get_drvdata()

Use the wrapper functions for getting and setting the driver data using
spi_device instead of using dev_{get|set}_drvdata with &spi->dev, so we
can directly pass a struct spi_device.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/stmpe-spi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/stmpe-spi.c b/drivers/mfd/stmpe-spi.c
index 973659f8abd9..a81badbaa917 100644
--- a/drivers/mfd/stmpe-spi.c
+++ b/drivers/mfd/stmpe-spi.c
@@ -103,7 +103,7 @@ stmpe_spi_probe(struct spi_device *spi)
 
 static int stmpe_spi_remove(struct spi_device *spi)
 {
-	struct stmpe *stmpe = dev_get_drvdata(&spi->dev);
+	struct stmpe *stmpe = spi_get_drvdata(spi);
 
 	return stmpe_remove(stmpe);
 }
-- 
cgit v1.2.3


From 230f13a5035fd4725a6623af83953623fd51173a Mon Sep 17 00:00:00 2001
From: Jean-Nicolas Graux <jean-nicolas.graux@stericsson.com>
Date: Tue, 9 Apr 2013 10:35:19 +0200
Subject: mfd: support stmpe1801 18 bits enhanced port expander

Provides support for 1801 variant of stmpe gpio port expanders.
This chip has 18 gpios configurable as GPI, GPO, keypad matrix,
special key or dedicated key function.

Note that special/dedicated key function is not supported yet.

Signed-off-by: Jean-Nicolas Graux <jean-nicolas.graux@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/Kconfig       |  1 +
 drivers/mfd/stmpe-i2c.c   |  1 +
 drivers/mfd/stmpe.c       | 97 ++++++++++++++++++++++++++++++++++++++++++++++-
 drivers/mfd/stmpe.h       | 49 ++++++++++++++++++++++++
 include/linux/mfd/stmpe.h |  3 ++
 5 files changed, 150 insertions(+), 1 deletion(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 533ce2c9435b..9d64e321e8c0 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -393,6 +393,7 @@ config MFD_STMPE
 
 		STMPE811: GPIO, Touchscreen
 		STMPE1601: GPIO, Keypad
+		STMPE1801: GPIO, Keypad
 		STMPE2401: GPIO, Keypad
 		STMPE2403: GPIO, Keypad
 
diff --git a/drivers/mfd/stmpe-i2c.c b/drivers/mfd/stmpe-i2c.c
index fd5fcb630685..0da02e11d58e 100644
--- a/drivers/mfd/stmpe-i2c.c
+++ b/drivers/mfd/stmpe-i2c.c
@@ -75,6 +75,7 @@ static const struct i2c_device_id stmpe_i2c_id[] = {
 	{ "stmpe801", STMPE801 },
 	{ "stmpe811", STMPE811 },
 	{ "stmpe1601", STMPE1601 },
+	{ "stmpe1801", STMPE1801 },
 	{ "stmpe2401", STMPE2401 },
 	{ "stmpe2403", STMPE2403 },
 	{ }
diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c
index bc8587777993..bbccd514d3ec 100644
--- a/drivers/mfd/stmpe.c
+++ b/drivers/mfd/stmpe.c
@@ -19,6 +19,7 @@
 #include <linux/pm.h>
 #include <linux/slab.h>
 #include <linux/mfd/core.h>
+#include <linux/delay.h>
 #include "stmpe.h"
 
 static int __stmpe_enable(struct stmpe *stmpe, unsigned int blocks)
@@ -642,6 +643,88 @@ static struct stmpe_variant_info stmpe1601 = {
 	.enable_autosleep	= stmpe1601_autosleep,
 };
 
+/*
+ * STMPE1801
+ */
+static const u8 stmpe1801_regs[] = {
+	[STMPE_IDX_CHIP_ID]	= STMPE1801_REG_CHIP_ID,
+	[STMPE_IDX_ICR_LSB]	= STMPE1801_REG_INT_CTRL_LOW,
+	[STMPE_IDX_IER_LSB]	= STMPE1801_REG_INT_EN_MASK_LOW,
+	[STMPE_IDX_ISR_LSB]	= STMPE1801_REG_INT_STA_LOW,
+	[STMPE_IDX_GPMR_LSB]	= STMPE1801_REG_GPIO_MP_LOW,
+	[STMPE_IDX_GPSR_LSB]	= STMPE1801_REG_GPIO_SET_LOW,
+	[STMPE_IDX_GPCR_LSB]	= STMPE1801_REG_GPIO_CLR_LOW,
+	[STMPE_IDX_GPDR_LSB]	= STMPE1801_REG_GPIO_SET_DIR_LOW,
+	[STMPE_IDX_GPRER_LSB]	= STMPE1801_REG_GPIO_RE_LOW,
+	[STMPE_IDX_GPFER_LSB]	= STMPE1801_REG_GPIO_FE_LOW,
+	[STMPE_IDX_IEGPIOR_LSB]	= STMPE1801_REG_INT_EN_GPIO_MASK_LOW,
+	[STMPE_IDX_ISGPIOR_LSB]	= STMPE1801_REG_INT_STA_GPIO_LOW,
+};
+
+static struct stmpe_variant_block stmpe1801_blocks[] = {
+	{
+		.cell	= &stmpe_gpio_cell,
+		.irq	= STMPE1801_IRQ_GPIOC,
+		.block	= STMPE_BLOCK_GPIO,
+	},
+	{
+		.cell	= &stmpe_keypad_cell,
+		.irq	= STMPE1801_IRQ_KEYPAD,
+		.block	= STMPE_BLOCK_KEYPAD,
+	},
+};
+
+static int stmpe1801_enable(struct stmpe *stmpe, unsigned int blocks,
+			    bool enable)
+{
+	unsigned int mask = 0;
+	if (blocks & STMPE_BLOCK_GPIO)
+		mask |= STMPE1801_MSK_INT_EN_GPIO;
+
+	if (blocks & STMPE_BLOCK_KEYPAD)
+		mask |= STMPE1801_MSK_INT_EN_KPC;
+
+	return __stmpe_set_bits(stmpe, STMPE1801_REG_INT_EN_MASK_LOW, mask,
+				enable ? mask : 0);
+}
+
+static int stmpe1801_reset(struct stmpe *stmpe)
+{
+	unsigned long timeout;
+	int ret = 0;
+
+	ret = __stmpe_set_bits(stmpe, STMPE1801_REG_SYS_CTRL,
+		STMPE1801_MSK_SYS_CTRL_RESET, STMPE1801_MSK_SYS_CTRL_RESET);
+	if (ret < 0)
+		return ret;
+
+	timeout = jiffies + msecs_to_jiffies(100);
+	while (time_before(jiffies, timeout)) {
+		ret = __stmpe_reg_read(stmpe, STMPE1801_REG_SYS_CTRL);
+		if (ret < 0)
+			return ret;
+		if (!(ret & STMPE1801_MSK_SYS_CTRL_RESET))
+			return 0;
+		usleep_range(100, 200);
+	};
+	return -EIO;
+}
+
+static struct stmpe_variant_info stmpe1801 = {
+	.name		= "stmpe1801",
+	.id_val		= STMPE1801_ID,
+	.id_mask	= 0xfff0,
+	.num_gpios	= 18,
+	.af_bits	= 0,
+	.regs		= stmpe1801_regs,
+	.blocks		= stmpe1801_blocks,
+	.num_blocks	= ARRAY_SIZE(stmpe1801_blocks),
+	.num_irqs	= STMPE1801_NR_INTERNAL_IRQS,
+	.enable		= stmpe1801_enable,
+	/* stmpe1801 do not have any gpio alternate function */
+	.get_altfunc	= NULL,
+};
+
 /*
  * STMPE24XX
  */
@@ -740,6 +823,7 @@ static struct stmpe_variant_info *stmpe_variant_info[STMPE_NBR_PARTS] = {
 	[STMPE801]	= &stmpe801,
 	[STMPE811]	= &stmpe811,
 	[STMPE1601]	= &stmpe1601,
+	[STMPE1801]	= &stmpe1801,
 	[STMPE2401]	= &stmpe2401,
 	[STMPE2403]	= &stmpe2403,
 };
@@ -759,7 +843,7 @@ static irqreturn_t stmpe_irq(int irq, void *data)
 	struct stmpe *stmpe = data;
 	struct stmpe_variant_info *variant = stmpe->variant;
 	int num = DIV_ROUND_UP(variant->num_irqs, 8);
-	u8 israddr = stmpe->regs[STMPE_IDX_ISR_MSB];
+	u8 israddr;
 	u8 isr[num];
 	int ret;
 	int i;
@@ -771,6 +855,11 @@ static irqreturn_t stmpe_irq(int irq, void *data)
 		return IRQ_HANDLED;
 	}
 
+	if (variant->id_val == STMPE1801_ID)
+		israddr = stmpe->regs[STMPE_IDX_ISR_LSB];
+	else
+		israddr = stmpe->regs[STMPE_IDX_ISR_MSB];
+
 	ret = stmpe_block_read(stmpe, israddr, num, isr);
 	if (ret < 0)
 		return IRQ_NONE;
@@ -938,6 +1027,12 @@ static int stmpe_chip_init(struct stmpe *stmpe)
 	if (ret)
 		return ret;
 
+	if (id == STMPE1801_ID)	{
+		ret =  stmpe1801_reset(stmpe);
+		if (ret < 0)
+			return ret;
+	}
+
 	if (stmpe->irq >= 0) {
 		if (id == STMPE801_ID)
 			icr = STMPE801_REG_SYS_CTRL_INT_EN;
diff --git a/drivers/mfd/stmpe.h b/drivers/mfd/stmpe.h
index 7b8e13f5b764..ff2b09ba8797 100644
--- a/drivers/mfd/stmpe.h
+++ b/drivers/mfd/stmpe.h
@@ -198,6 +198,55 @@ int stmpe_remove(struct stmpe *stmpe);
 #define STMPE1601_AUTOSLEEP_TIMEOUT_MASK	(0x7)
 #define STPME1601_AUTOSLEEP_ENABLE		(1 << 3)
 
+/*
+ * STMPE1801
+ */
+#define STMPE1801_ID			0xc110
+#define STMPE1801_NR_INTERNAL_IRQS	5
+#define STMPE1801_IRQ_KEYPAD_COMBI	4
+#define STMPE1801_IRQ_GPIOC		3
+#define STMPE1801_IRQ_KEYPAD_OVER	2
+#define STMPE1801_IRQ_KEYPAD		1
+#define STMPE1801_IRQ_WAKEUP		0
+
+#define STMPE1801_REG_CHIP_ID			0x00
+#define STMPE1801_REG_SYS_CTRL			0x02
+#define STMPE1801_REG_INT_CTRL_LOW		0x04
+#define STMPE1801_REG_INT_EN_MASK_LOW		0x06
+#define STMPE1801_REG_INT_STA_LOW		0x08
+#define STMPE1801_REG_INT_EN_GPIO_MASK_LOW	0x0A
+#define STMPE1801_REG_INT_EN_GPIO_MASK_MID	0x0B
+#define STMPE1801_REG_INT_EN_GPIO_MASK_HIGH	0x0C
+#define STMPE1801_REG_INT_STA_GPIO_LOW		0x0D
+#define STMPE1801_REG_INT_STA_GPIO_MID		0x0E
+#define STMPE1801_REG_INT_STA_GPIO_HIGH		0x0F
+#define STMPE1801_REG_GPIO_SET_LOW		0x10
+#define STMPE1801_REG_GPIO_SET_MID		0x11
+#define STMPE1801_REG_GPIO_SET_HIGH		0x12
+#define STMPE1801_REG_GPIO_CLR_LOW		0x13
+#define STMPE1801_REG_GPIO_CLR_MID		0x14
+#define STMPE1801_REG_GPIO_CLR_HIGH		0x15
+#define STMPE1801_REG_GPIO_MP_LOW		0x16
+#define STMPE1801_REG_GPIO_MP_MID		0x17
+#define STMPE1801_REG_GPIO_MP_HIGH		0x18
+#define STMPE1801_REG_GPIO_SET_DIR_LOW		0x19
+#define STMPE1801_REG_GPIO_SET_DIR_MID		0x1A
+#define STMPE1801_REG_GPIO_SET_DIR_HIGH		0x1B
+#define STMPE1801_REG_GPIO_RE_LOW		0x1C
+#define STMPE1801_REG_GPIO_RE_MID		0x1D
+#define STMPE1801_REG_GPIO_RE_HIGH		0x1E
+#define STMPE1801_REG_GPIO_FE_LOW		0x1F
+#define STMPE1801_REG_GPIO_FE_MID		0x20
+#define STMPE1801_REG_GPIO_FE_HIGH		0x21
+#define STMPE1801_REG_GPIO_PULL_UP_LOW		0x22
+#define STMPE1801_REG_GPIO_PULL_UP_MID		0x23
+#define STMPE1801_REG_GPIO_PULL_UP_HIGH		0x24
+
+#define STMPE1801_MSK_SYS_CTRL_RESET		(1 << 7)
+
+#define STMPE1801_MSK_INT_EN_KPC		(1 << 1)
+#define STMPE1801_MSK_INT_EN_GPIO		(1 << 3)
+
 /*
  * STMPE24xx
  */
diff --git a/include/linux/mfd/stmpe.h b/include/linux/mfd/stmpe.h
index 383ac1512a39..48395a69a7e9 100644
--- a/include/linux/mfd/stmpe.h
+++ b/include/linux/mfd/stmpe.h
@@ -26,6 +26,7 @@ enum stmpe_partnum {
 	STMPE801,
 	STMPE811,
 	STMPE1601,
+	STMPE1801,
 	STMPE2401,
 	STMPE2403,
 	STMPE_NBR_PARTS
@@ -39,6 +40,7 @@ enum {
 	STMPE_IDX_CHIP_ID,
 	STMPE_IDX_ICR_LSB,
 	STMPE_IDX_IER_LSB,
+	STMPE_IDX_ISR_LSB,
 	STMPE_IDX_ISR_MSB,
 	STMPE_IDX_GPMR_LSB,
 	STMPE_IDX_GPSR_LSB,
@@ -49,6 +51,7 @@ enum {
 	STMPE_IDX_GPFER_LSB,
 	STMPE_IDX_GPAFR_U_MSB,
 	STMPE_IDX_IEGPIOR_LSB,
+	STMPE_IDX_ISGPIOR_LSB,
 	STMPE_IDX_ISGPIOR_MSB,
 	STMPE_IDX_MAX,
 };
-- 
cgit v1.2.3


From ab85b120e6925203e4b63022166eacac19009380 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Tue, 9 Apr 2013 14:40:09 +0200
Subject: mfd: Kconfig alphabetical re-ordering

Ordering so many Kconfig alphabetically makes it a lot easier to read e.g.
from menuconfig.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/Kconfig | 1545 ++++++++++++++++++++++++++-------------------------
 1 file changed, 774 insertions(+), 771 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 9d64e321e8c0..2f3ce1836181 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -10,19 +10,45 @@ config MFD_CORE
 	select IRQ_DOMAIN
 	default n
 
-config MFD_88PM860X
-	bool "Support Marvell 88PM8606/88PM8607"
-	depends on I2C=y && GENERIC_HARDIRQS
+config MFD_CS5535
+	tristate "AMD CS5535 and CS5536 southbridge core functions"
+	select MFD_CORE
+	depends on PCI && X86
+	---help---
+	  This is the core driver for CS5535/CS5536 MFD functions.  This is
+          necessary for using the board's GPIO and MFGPT functionality.
+
+config MFD_AS3711
+	bool "AMS AS3711"
+	select MFD_CORE
 	select REGMAP_I2C
+	select REGMAP_IRQ
+	depends on I2C=y && GENERIC_HARDIRQS
+	help
+	  Support for the AS3711 PMIC from AMS
+
+config PMIC_ADP5520
+	bool "Analog Devices ADP5520/01 MFD PMIC Core Support"
+	depends on I2C=y
+	help
+	  Say yes here to add support for Analog Devices AD5520 and ADP5501,
+	  Multifunction Power Management IC. This includes
+	  the I2C driver and the core APIs _only_, you have to select
+	  individual components like LCD backlight, LEDs, GPIOs and Kepad
+	  under the corresponding menus.
+
+config MFD_AAT2870_CORE
+	bool "AnalogicTech AAT2870"
 	select MFD_CORE
+	depends on I2C=y && GPIOLIB && GENERIC_HARDIRQS
 	help
-	  This supports for Marvell 88PM8606/88PM8607 Power Management IC.
-	  This includes the I2C driver and the core APIs _only_, you have to
-	  select individual components like voltage regulators, RTC and
-	  battery-charger under the corresponding menus.
+	  If you say yes here you get support for the AAT2870.
+	  This driver provides common support for accessing the device,
+	  additional drivers must be enabled in order to use the
+	  functionality of the device.
 
 config MFD_CROS_EC
-	tristate "Support ChromeOS Embedded Controller"
+	tristate "ChromeOS Embedded Controller"
 	select MFD_CORE
 	help
 	  If you say Y here you get support for the ChromeOS Embedded
@@ -50,100 +76,98 @@ config MFD_CROS_EC_SPI
 	  response time cannot be guaranteed, we support ignoring
 	  'pre-amble' bytes before the response actually starts.
 
-config MFD_88PM800
-	tristate "Support Marvell 88PM800"
-	depends on I2C=y && GENERIC_HARDIRQS
-	select REGMAP_I2C
-	select REGMAP_IRQ
+config MFD_ASIC3
+	bool "Compaq ASIC3"
+	depends on GENERIC_HARDIRQS && GPIOLIB && ARM
 	select MFD_CORE
+	 ---help---
+	  This driver supports the ASIC3 multifunction chip found on many
+	  PDAs (mainly iPAQ and HTC based ones)
+
+config PMIC_DA903X
+	bool "Dialog Semiconductor DA9030/DA9034 PMIC Support"
+	depends on I2C=y
 	help
-	  This supports for Marvell 88PM800 Power Management IC.
-	  This includes the I2C driver and the core APIs _only_, you have to
-	  select individual components like voltage regulators, RTC and
-	  battery-charger under the corresponding menus.
+	  Say yes here to support for Dialog Semiconductor DA9030 (a.k.a
+	  ARAVA) and DA9034 (a.k.a MICCO), these are Power Management IC
+	  usually found on PXA processors-based platforms. This includes
+	  the I2C driver and the core APIs _only_, you have to select
+	  individual components like LCD backlight, voltage regulators,
+	  LEDs and battery-charger under the corresponding menus.
 
-config MFD_88PM805
-	tristate "Support Marvell 88PM805"
-	depends on I2C=y && GENERIC_HARDIRQS
-	select REGMAP_I2C
-	select REGMAP_IRQ
+config PMIC_DA9052
+	bool
 	select MFD_CORE
-	help
-	  This supports for Marvell 88PM805 Power Management IC. This includes
-	  the I2C driver and the core APIs _only_, you have to select individual
-	  components like codec device, headset/Mic device under the
-	  corresponding menus.
 
-config MFD_SM501
-	tristate "Support for Silicon Motion SM501"
-	 ---help---
-	  This is the core driver for the Silicon Motion SM501 multimedia
-	  companion chip. This device is a multifunction device which may
-	  provide numerous interfaces including USB host controller, USB gadget,
-	  asynchronous serial ports, audio functions, and a dual display video
-	  interface. The device may be connected by PCI or local bus with
-	  varying functions enabled.
+config MFD_DA9052_SPI
+	bool "Dialog Semiconductor DA9052/53 PMIC variants with SPI"
+	select REGMAP_SPI
+	select REGMAP_IRQ
+	select PMIC_DA9052
+	depends on SPI_MASTER=y && GENERIC_HARDIRQS
+	help
+	  Support for the Dialog Semiconductor DA9052 PMIC
+	  when controlled using SPI. This driver provides common support
+	  for accessing the device, additional drivers must be enabled in
+	  order to use the functionality of the device.
 
-config MFD_SM501_GPIO
-	bool "Export GPIO via GPIO layer"
-	depends on MFD_SM501 && GPIOLIB
-	 ---help---
-	 This option uses the gpio library layer to export the 64 GPIO
-	 lines on the SM501. The platform data is used to supply the
-	 base number for the first GPIO line to register.
+config MFD_DA9052_I2C
+	bool "Dialog Semiconductor DA9052/53 PMIC variants with I2C"
+	select REGMAP_I2C
+	select REGMAP_IRQ
+	select PMIC_DA9052
+	depends on I2C=y && GENERIC_HARDIRQS
+	help
+	  Support for the Dialog Semiconductor DA9052 PMIC
+	  when controlled using I2C. This driver provides common support
+	  for accessing the device, additional drivers must be enabled in
+	  order to use the functionality of the device.
 
-config MFD_RTSX_PCI
-	tristate "Support for Realtek PCI-E card reader"
-	depends on PCI && GENERIC_HARDIRQS
+config MFD_DA9055
+	bool "Dialog Semiconductor DA9055 PMIC Support"
+	select REGMAP_I2C
+	select REGMAP_IRQ
 	select MFD_CORE
+	depends on I2C=y && GENERIC_HARDIRQS
 	help
-	  This supports for Realtek PCI-Express card reader including rts5209,
-	  rts5229, rtl8411, etc. Realtek card reader supports access to many
-	  types of memory cards, such as Memory Stick, Memory Stick Pro,
-	  Secure Digital and MultiMediaCard.
+	  Say yes here for support of Dialog Semiconductor DA9055. This is
+	  a Power Management IC. This driver provides common support for
+	  accessing the device as well as the I2C interface to the chip itself.
+	  Additional drivers must be enabled in order to use the functionality
+	  of the device.
 
-config MFD_ASIC3
-	bool "Support for Compaq ASIC3"
-	depends on GENERIC_HARDIRQS && GPIOLIB && ARM
-	select MFD_CORE
-	 ---help---
-	  This driver supports the ASIC3 multifunction chip found on many
-	  PDAs (mainly iPAQ and HTC based ones)
+	  This driver can be built as a module. If built as a module it will be
+	  called "da9055"
 
-config MFD_DAVINCI_VOICECODEC
+config MFD_MC13783
 	tristate
-	select MFD_CORE
-
-config MFD_DM355EVM_MSP
-	bool "DaVinci DM355 EVM microcontroller"
-	depends on I2C=y && MACH_DAVINCI_DM355_EVM
-	help
-	  This driver supports the MSP430 microcontroller used on these
-	  boards.  MSP430 firmware manages resets and power sequencing,
-	  inputs from buttons and the IR remote, LEDs, an RTC, and more.
 
-config MFD_TI_SSP
-	tristate "TI Sequencer Serial Port support"
-	depends on ARCH_DAVINCI_TNETV107X && GENERIC_HARDIRQS
+config MFD_MC13XXX
+	tristate
+	depends on (SPI_MASTER || I2C) && GENERIC_HARDIRQS
 	select MFD_CORE
-	---help---
-	  Say Y here if you want support for the Sequencer Serial Port
-	  in a Texas Instruments TNETV107X SoC.
+	select MFD_MC13783
+	help
+	  Enable support for the Freescale MC13783 and MC13892 PMICs.
+	  This driver provides common support for accessing the device,
+	  additional drivers must be enabled in order to use the
+	  functionality of the device.
 
-	  To compile this driver as a module, choose M here: the
-	  module will be called ti-ssp.
+config MFD_MC13XXX_SPI
+	tristate "Freescale MC13783 and MC13892 SPI interface"
+	depends on SPI_MASTER && GENERIC_HARDIRQS
+	select REGMAP_SPI
+	select MFD_MC13XXX
+	help
+	  Select this if your MC13xxx is connected via an SPI bus.
 
-config MFD_TI_AM335X_TSCADC
-	tristate "TI ADC / Touch Screen chip support"
-	select MFD_CORE
-	select REGMAP
-	select REGMAP_MMIO
-	depends on GENERIC_HARDIRQS
+config MFD_MC13XXX_I2C
+	tristate "Freescale MC13892 I2C interface"
+	depends on I2C && GENERIC_HARDIRQS
+	select REGMAP_I2C
+	select MFD_MC13XXX
 	help
-	  If you say yes here you get support for Texas Instruments series
-	  of Touch Screen /ADC chips.
-	  To compile this driver as a module, choose M here: the
-	  module will be called ti_am335x_tscadc.
+	  Select this if your MC13xxx is connected via an I2C bus.
 
 config HTC_EGPIO
 	bool "HTC EGPIO support"
@@ -172,281 +196,317 @@ config HTC_I2CPLD
 	  This device provides input and output GPIOs through an I2C
 	  interface to one or more sub-chips.
 
-config UCB1400_CORE
-	tristate "Philips UCB1400 Core driver"
-	depends on AC97_BUS
-	depends on GPIOLIB
+config LPC_ICH
+	tristate "Intel ICH LPC"
+	depends on PCI && GENERIC_HARDIRQS
+	select MFD_CORE
 	help
-	  This enables support for the Philips UCB1400 core functions.
-	  The UCB1400 is an AC97 audio codec.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ucb1400_core.
+	  The LPC bridge function of the Intel ICH provides support for
+	  many functional units. This driver provides needed support for
+	  other drivers to control these functions, currently GPIO and
+	  watchdog.
 
-config MFD_LM3533
-	tristate "LM3533 Lighting Power chip"
-	depends on I2C
+config LPC_SCH
+	tristate "Intel SCH LPC"
+	depends on PCI && GENERIC_HARDIRQS
 	select MFD_CORE
-	select REGMAP_I2C
-	depends on GENERIC_HARDIRQS
 	help
-	  Say yes here to enable support for National Semiconductor / TI
-	  LM3533 Lighting Power chips.
-
-	  This driver provides common support for accessing the device;
-	  additional drivers must be enabled in order to use the LED,
-	  backlight or ambient-light-sensor functionality of the device.
+	  LPC bridge function of the Intel SCH provides support for
+	  System Management Bus and General Purpose I/O.
 
-config TPS6105X
-	tristate "TPS61050/61052 Boost Converters"
-	depends on I2C
-	select REGULATOR
+config MFD_INTEL_MSIC
+	bool "Intel MSIC"
+	depends on INTEL_SCU_IPC
 	select MFD_CORE
-	select REGULATOR_FIXED_VOLTAGE
-	depends on GENERIC_HARDIRQS
 	help
-	  This option enables a driver for the TP61050/TPS61052
-	  high-power "white LED driver". This boost converter is
-	  sometimes used for other things than white LEDs, and
-	  also contains a GPIO pin.
+	  Select this option to enable access to Intel MSIC (Avatele
+	  Passage) chip. This chip embeds audio, battery, GPIO, etc.
+	  devices used in Intel Medfield platforms.
 
-config TPS65010
-	tristate "TPS6501x Power Management chips"
-	depends on I2C && GPIOLIB
-	default y if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_OSK
+config MFD_JANZ_CMODIO
+	tristate "Janz CMOD-IO PCI MODULbus Carrier Board"
+	select MFD_CORE
+	depends on PCI && GENERIC_HARDIRQS
 	help
-	  If you say yes here you get support for the TPS6501x series of
-	  Power Management chips.  These include voltage regulators,
-	  lithium ion/polymer battery charging, and other features that
-	  are often used in portable devices like cell phones and cameras.
-
-	  This driver can also be built as a module.  If so, the module
-	  will be called tps65010.
+	  This is the core driver for the Janz CMOD-IO PCI MODULbus
+	  carrier board. This device is a PCI to MODULbus bridge which may
+	  host many different types of MODULbus daughterboards, including
+	  CAN and GPIO controllers.
 
-config TPS6507X
-	tristate "TPS6507x Power Management / Touch Screen chips"
+config MFD_JZ4740_ADC
+	bool "Janz JZ4740 ADC core"
 	select MFD_CORE
-	depends on I2C && GENERIC_HARDIRQS
+	select GENERIC_IRQ_CHIP
+	depends on MACH_JZ4740
 	help
-	  If you say yes here you get support for the TPS6507x series of
-	  Power Management / Touch Screen chips.  These include voltage
-	  regulators, lithium ion/polymer battery charging, touch screen
-	  and other features that are often used in portable devices.
-	  This driver can also be built as a module.  If so, the module
-	  will be called tps6507x.
+	  Say yes here if you want support for the ADC unit in the JZ4740 SoC.
+	  This driver is necessary for jz4740-battery and jz4740-hwmon driver.
 
-config MFD_TPS65217
-	tristate "TPS65217 Power Management / White LED chips"
-	depends on I2C && GENERIC_HARDIRQS
-	select MFD_CORE
+config MFD_88PM800
+	tristate "Marvell 88PM800"
+	depends on I2C=y && GENERIC_HARDIRQS
 	select REGMAP_I2C
+	select REGMAP_IRQ
+	select MFD_CORE
 	help
-	  If you say yes here you get support for the TPS65217 series of
-	  Power Management / White LED chips.
-	  These include voltage regulators, lithium ion/polymer battery
-	  charger, wled and other features that are often used in portable
-	  devices.
-
-	  This driver can also be built as a module.  If so, the module
-	  will be called tps65217.
+	  This supports for Marvell 88PM800 Power Management IC.
+	  This includes the I2C driver and the core APIs _only_, you have to
+	  select individual components like voltage regulators, RTC and
+	  battery-charger under the corresponding menus.
 
-config MFD_TPS6586X
-	bool "TPS6586x Power Management chips"
+config MFD_88PM805
+	tristate "Marvell 88PM805"
 	depends on I2C=y && GENERIC_HARDIRQS
-	select MFD_CORE
 	select REGMAP_I2C
+	select REGMAP_IRQ
+	select MFD_CORE
 	help
-	  If you say yes here you get support for the TPS6586X series of
-	  Power Management chips.
-	  This driver provides common support for accessing the device,
-	  additional drivers must be enabled in order to use the
-	  functionality of the device.
+	  This supports for Marvell 88PM805 Power Management IC. This includes
+	  the I2C driver and the core APIs _only_, you have to select individual
+	  components like codec device, headset/Mic device under the
+	  corresponding menus.
 
-	  This driver can also be built as a module.  If so, the module
-	  will be called tps6586x.
+config MFD_88PM860X
+	bool "Marvell 88PM8606/88PM8607"
+	depends on I2C=y && GENERIC_HARDIRQS
+	select REGMAP_I2C
+	select MFD_CORE
+	help
+	  This supports for Marvell 88PM8606/88PM8607 Power Management IC.
+	  This includes the I2C driver and the core APIs _only_, you have to
+	  select individual components like voltage regulators, RTC and
+	  battery-charger under the corresponding menus.
 
-config MFD_TPS65910
-	bool "TPS65910 Power Management chip"
-	depends on I2C=y && GPIOLIB && GENERIC_HARDIRQS
+config MFD_MAX77686
+	bool "Maxim Semiconductor MAX77686 PMIC Support"
+	depends on I2C=y && GENERIC_HARDIRQS
 	select MFD_CORE
 	select REGMAP_I2C
-	select REGMAP_IRQ
 	select IRQ_DOMAIN
 	help
-	  if you say yes here you get support for the TPS65910 series of
-	  Power Management chips.
-
-config MFD_TPS65912
-	bool
-	depends on GPIOLIB
+	  Say yes here to support for Maxim Semiconductor MAX77686.
+	  This is a Power Management IC with RTC on chip.
+	  This driver provides common support for accessing the device;
+	  additional drivers must be enabled in order to use the functionality
+	  of the device.
 
-config MFD_TPS65912_I2C
-	bool "TPS65912 Power Management chip with I2C"
+config MFD_MAX77693
+	bool "Maxim Semiconductor MAX77693 PMIC Support"
+	depends on I2C=y && GENERIC_HARDIRQS
 	select MFD_CORE
-	select MFD_TPS65912
-	depends on I2C=y && GPIOLIB && GENERIC_HARDIRQS
+	select REGMAP_I2C
 	help
-	  If you say yes here you get support for the TPS65912 series of
-	  PM chips with I2C interface.
+	  Say yes here to support for Maxim Semiconductor MAX77693.
+	  This is a companion Power Management IC with Flash, Haptic, Charger,
+	  and MUIC(Micro USB Interface Controller) controls on chip.
+	  This driver provides common support for accessing the device;
+	  additional drivers must be enabled in order to use the functionality
+	  of the device.
 
-config MFD_TPS65912_SPI
-	bool "TPS65912 Power Management chip with SPI"
+config MFD_MAX8907
+	tristate "Maxim Semiconductor MAX8907 PMIC Support"
 	select MFD_CORE
-	select MFD_TPS65912
-	depends on SPI_MASTER && GPIOLIB && GENERIC_HARDIRQS
-	help
-	  If you say yes here you get support for the TPS65912 series of
-	  PM chips with SPI interface.
-
-config MFD_TPS80031
-	bool "TI TPS80031/TPS80032 Power Management chips"
 	depends on I2C=y && GENERIC_HARDIRQS
-	select MFD_CORE
 	select REGMAP_I2C
 	select REGMAP_IRQ
 	help
-	  If you say yes here you get support for the Texas Instruments
-	  TPS80031/ TPS80032 Fully Integrated Power Management with Power
-	  Path and Battery Charger. The device provides five configurable
-	  step-down converters, 11 general purpose LDOs, USB OTG Module,
-	  ADC, RTC, 2 PWM, System Voltage Regulator/Battery Charger with
-	  Power Path from USB, 32K clock generator.
+	  Say yes here to support for Maxim Semiconductor MAX8907. This is
+	  a Power Management IC. This driver provides common support for
+	  accessing the device; additional drivers must be enabled in order
+	  to use the functionality of the device.
 
-config MENELAUS
-	bool "Texas Instruments TWL92330/Menelaus PM chip"
-	depends on I2C=y && ARCH_OMAP2
+config MFD_MAX8925
+	bool "Maxim Semiconductor MAX8925 PMIC Support"
+	depends on I2C=y && GENERIC_HARDIRQS
+	select MFD_CORE
 	help
-	  If you say yes here you get support for the Texas Instruments
-	  TWL92330/Menelaus Power Management chip. This include voltage
-	  regulators, Dual slot memory card transceivers, real-time clock
-	  and other features that are often used in portable devices like
-	  cell phones and PDAs.
+	  Say yes here to support for Maxim Semiconductor MAX8925. This is
+	  a Power Management IC. This driver provides common support for
+	  accessing the device, additional drivers must be enabled in order
+	  to use the functionality of the device.
 
-config TWL4030_CORE
-	bool "Texas Instruments TWL4030/TWL5030/TWL6030/TPS659x0 Support"
+config MFD_MAX8997
+	bool "Maxim Semiconductor MAX8997/8966 PMIC Support"
 	depends on I2C=y && GENERIC_HARDIRQS
+	select MFD_CORE
 	select IRQ_DOMAIN
-	select REGMAP_I2C
 	help
-	  Say yes here if you have TWL4030 / TWL6030 family chip on your board.
-	  This core driver provides register access and IRQ handling
-	  facilities, and registers devices for the various functions
-	  so that function-specific drivers can bind to them.
-
-	  These multi-function chips are found on many OMAP2 and OMAP3
-	  boards, providing power management, RTC, GPIO, keypad, a
-	  high speed USB OTG transceiver, an audio codec (on most
-	  versions) and many other features.
+	  Say yes here to support for Maxim Semiconductor MAX8997/8966.
+	  This is a Power Management IC with RTC, Flash, Fuel Gauge, Haptic,
+	  MUIC controls on chip.
+	  This driver provides common support for accessing the device;
+	  additional drivers must be enabled in order to use the functionality
+	  of the device.
 
-config TWL4030_MADC
-	tristate "Texas Instruments TWL4030 MADC"
-	depends on TWL4030_CORE
+config MFD_MAX8998
+	bool "Maxim Semiconductor MAX8998/National LP3974 PMIC Support"
+	depends on I2C=y && GENERIC_HARDIRQS
+	select MFD_CORE
 	help
-	This driver provides support for triton TWL4030-MADC. The
-	driver supports both RT and SW conversion methods.
-
-	This driver can be built as a module. If so it will be
-	named twl4030-madc
+	  Say yes here to support for Maxim Semiconductor MAX8998 and
+	  National Semiconductor LP3974. This is a Power Management IC.
+	  This driver provides common support for accessing the device,
+	  additional drivers must be enabled in order to use the functionality
+	  of the device.
 
-config TWL4030_POWER
-	bool "Support power resources on TWL4030 family chips"
-	depends on TWL4030_CORE && ARM
+config EZX_PCAP
+	bool "Motorola EZXPCAP Support"
+	depends on GENERIC_HARDIRQS && SPI_MASTER
 	help
-	  Say yes here if you want to use the power resources on the
-	  TWL4030 family chips.  Most of these resources are regulators,
-	  which have a separate driver; some are control signals, such
-	  as clock request handshaking.
-
-	  This driver uses board-specific data to initialize the resources
-	  and load scripts controlling which resources are switched off/on
-	  or reset when a sleep, wakeup or warm reset event occurs.
+	  This enables the PCAP ASIC present on EZX Phones. This is
+	  needed for MMC, TouchScreen, Sound, USB, etc..
 
-config MFD_TWL4030_AUDIO
-	bool
-	depends on TWL4030_CORE && GENERIC_HARDIRQS
+config MFD_VIPERBOARD
+        tristate "Nano River Technologies Viperboard"
 	select MFD_CORE
+	depends on USB && GENERIC_HARDIRQS
 	default n
+	help
+	  Say yes here if you want support for Nano River Technologies
+	  Viperboard.
+	  There are mfd cell drivers available for i2c master, adc and
+	  both gpios found on the board. The spi part does not yet
+	  have a driver.
+	  You need to select the mfd cell drivers separately.
+	  The drivers do not support all features the board exposes.
 
-config TWL6040_CORE
-	bool "Support for TWL6040 audio codec"
-	depends on I2C=y && GENERIC_HARDIRQS
+config MFD_RETU
+	tristate "Nokia Retu multi-function device"
 	select MFD_CORE
-	select REGMAP_I2C
+	depends on I2C && GENERIC_HARDIRQS
 	select REGMAP_IRQ
-	default n
 	help
-	  Say yes here if you want support for Texas Instruments TWL6040 audio
-	  codec.
-	  This driver provides common support for accessing the device,
-	  additional drivers must be enabled in order to use the
-	  functionality of the device (audio, vibra).
+	  Retu is a multi-function device found on Nokia Internet Tablets
+	  (770, N800 and N810).
 
-config MFD_STMPE
-	bool "Support STMicroelectronics STMPE"
-	depends on (I2C=y || SPI_MASTER=y) && GENERIC_HARDIRQS
-	select MFD_CORE
+config MFD_PCF50633
+	tristate "NXP PCF50633"
+	depends on I2C
+	select REGMAP_I2C
 	help
-	  Support for the STMPE family of I/O Expanders from
-	  STMicroelectronics.
-
-	  Currently supported devices are:
-
-		STMPE811: GPIO, Touchscreen
-		STMPE1601: GPIO, Keypad
-		STMPE1801: GPIO, Keypad
-		STMPE2401: GPIO, Keypad
-		STMPE2403: GPIO, Keypad
-
-	  This driver provides common support for accessing the device,
-	  additional drivers must be enabled in order to use the functionality
-	  of the device.  Currently available sub drivers are:
-
-		GPIO: stmpe-gpio
-		Keypad: stmpe-keypad
-		Touchscreen: stmpe-ts
-
-menu "STMPE Interface Drivers"
-depends on MFD_STMPE
+	  Say yes here if you have NXP PCF50633 chip on your board.
+	  This core driver provides register access and IRQ handling
+	  facilities, and registers devices for the various functions
+	  so that function-specific drivers can bind to them.
 
-config STMPE_I2C
-	bool "STMPE I2C Inteface"
-	depends on I2C=y
-	default y
+config PCF50633_ADC
+	tristate "NXP PCF50633 ADC"
+	depends on MFD_PCF50633
 	help
-	  This is used to enable I2C interface of STMPE
+	 Say yes here if you want to include support for ADC in the
+	 NXP PCF50633 chip.
 
-config STMPE_SPI
-	bool "STMPE SPI Inteface"
-	depends on SPI_MASTER
+config PCF50633_GPIO
+	tristate "NXP PCF50633 GPIO"
+	depends on MFD_PCF50633
 	help
-	  This is used to enable SPI interface of STMPE
-endmenu
+	 Say yes here if you want to include support GPIO for pins on
+	 the PCF50633 chip.
 
-config MFD_TC3589X
-	bool "Support Toshiba TC35892 and variants"
-	depends on I2C=y && GENERIC_HARDIRQS
-	select MFD_CORE
+config UCB1400_CORE
+	tristate "Philips UCB1400 Core driver"
+	depends on AC97_BUS
+	depends on GPIOLIB
 	help
-	  Support for the Toshiba TC35892 and variants I/O Expander.
+	  This enables support for the Philips UCB1400 core functions.
+	  The UCB1400 is an AC97 audio codec.
 
-	  This driver provides common support for accessing the device,
-	  additional drivers must be enabled in order to use the
-	  functionality of the device.
+	  To compile this driver as a module, choose M here: the
+	  module will be called ucb1400_core.
 
-config MFD_TMIO
-	bool
-	default n
+config MFD_PM8XXX
+	tristate
 
-config MFD_T7L66XB
-	bool "Support Toshiba T7L66XB"
-	depends on ARM && HAVE_CLK && GENERIC_HARDIRQS
+config MFD_PM8921_CORE
+	tristate "Qualcomm PM8921 PMIC chip"
+	depends on MSM_SSBI
 	select MFD_CORE
-	select MFD_TMIO
+	select MFD_PM8XXX
 	help
-	  Support for Toshiba Mobile IO Controller T7L66XB
+	  If you say yes to this option, support will be included for the
+	  built-in PM8921 PMIC chip.
+
+	  This is required if your board has a PM8921 and uses its features,
+	  such as: MPPs, GPIOs, regulators, interrupts, and PWM.
+
+	  Say M here if you want to include support for PM8921 chip as a module.
+	  This will build a module called "pm8921-core".
+
+config MFD_PM8XXX_IRQ
+	bool "Qualcomm PM8xxx IRQ features"
+	depends on MFD_PM8XXX
+	default y if MFD_PM8XXX
+	help
+	  This is the IRQ driver for Qualcomm PM 8xxx PMIC chips.
+
+	  This is required to use certain other PM 8xxx features, such as GPIO
+	  and MPP.
+
+config MFD_RDC321X
+	tristate "RDC R-321x southbridge"
+	select MFD_CORE
+	depends on PCI && GENERIC_HARDIRQS
+	help
+	  Say yes here if you want to have support for the RDC R-321x SoC
+	  southbridge which provides access to GPIOs and Watchdog using the
+	  southbridge PCI device configuration space.
+
+config MFD_RTSX_PCI
+	tristate "Realtek PCI-E card reader"
+	depends on PCI && GENERIC_HARDIRQS
+	select MFD_CORE
+	help
+	  This supports for Realtek PCI-Express card reader including rts5209,
+	  rts5229, rtl8411, etc. Realtek card reader supports access to many
+	  types of memory cards, such as Memory Stick, Memory Stick Pro,
+	  Secure Digital and MultiMediaCard.
+
+config MFD_RC5T583
+	bool "Ricoh RC5T583 Power Management system device"
+	depends on I2C=y && GENERIC_HARDIRQS
+	select MFD_CORE
+	select REGMAP_I2C
+	help
+	  Select this option to get support for the RICOH583 Power
+	  Management system device.
+	  This driver provides common support for accessing the device
+	  through i2c interface. The device supports multiple sub-devices
+	  like GPIO, interrupts, RTC, LDO and DCDC regulators, onkey.
+	  Additional drivers must be enabled in order to use the
+	  different functionality of the device.
+
+config MFD_SEC_CORE
+	bool "SAMSUNG Electronics PMIC Series Support"
+	depends on I2C=y && GENERIC_HARDIRQS
+	select MFD_CORE
+	select REGMAP_I2C
+	select REGMAP_IRQ
+	help
+	 Support for the Samsung Electronics MFD series.
+	 This driver provides common support for accessing the device,
+	 additional drivers must be enabled in order to use the functionality
+	 of the device
+
+config MFD_SM501
+	tristate "Silicon Motion SM501"
+	 ---help---
+	  This is the core driver for the Silicon Motion SM501 multimedia
+	  companion chip. This device is a multifunction device which may
+	  provide numerous interfaces including USB host controller, USB gadget,
+	  asynchronous serial ports, audio functions, and a dual display video
+	  interface. The device may be connected by PCI or local bus with
+	  varying functions enabled.
+
+config MFD_SM501_GPIO
+	bool "Export GPIO via GPIO layer"
+	depends on MFD_SM501 && GPIOLIB
+	 ---help---
+	 This option uses the gpio library layer to export the 64 GPIO
+	 lines on the SM501. The platform data is used to supply the
+	 base number for the first GPIO line to register.
 
 config MFD_SMSC
-       bool "Support for the SMSC ECE1099 series chips"
+       bool "SMSC ECE1099 series chips"
        depends on I2C=y && GENERIC_HARDIRQS
        select MFD_CORE
        select REGMAP_I2C
@@ -457,433 +517,425 @@ config MFD_SMSC
         To compile this driver as a module, choose M here: the
         module will be called smsc.
 
-config MFD_TC6387XB
-	bool "Support Toshiba TC6387XB"
-	depends on ARM && HAVE_CLK
-	select MFD_CORE
-	select MFD_TMIO
+config ABX500_CORE
+	bool "ST-Ericsson ABX500 Mixed Signal Circuit register functions"
+	default y if ARCH_U300 || ARCH_U8500
 	help
-	  Support for Toshiba Mobile IO Controller TC6387XB
+	  Say yes here if you have the ABX500 Mixed Signal IC family
+	  chips. This core driver expose register access functions.
+	  Functionality specific drivers using these functions can
+	  remain unchanged when IC changes. Binding of the functions to
+	  actual register access is done by the IC core driver.
 
-config MFD_TC6393XB
-	bool "Support Toshiba TC6393XB"
-	depends on ARM && HAVE_CLK
-	select GPIOLIB
+config AB3100_CORE
+	bool "ST-Ericsson AB3100 Mixed Signal Circuit core functions"
+	depends on I2C=y && ABX500_CORE && GENERIC_HARDIRQS
 	select MFD_CORE
-	select MFD_TMIO
+	default y if ARCH_U300
 	help
-	  Support for Toshiba Mobile IO Controller TC6393XB
+	  Select this to enable the AB3100 Mixed Signal IC core
+	  functionality. This connects to a AB3100 on the I2C bus
+	  and expose a number of symbols needed for dependent devices
+	  to read and write registers and subscribe to events from
+	  this multi-functional IC. This is needed to use other features
+	  of the AB3100 such as battery-backed RTC, charging control,
+	  LEDs, vibrator, system power and temperature, power management
+	  and ALSA sound.
 
-config PMIC_DA903X
-	bool "Dialog Semiconductor DA9030/DA9034 PMIC Support"
-	depends on I2C=y
+config AB3100_OTP
+	tristate "ST-Ericsson AB3100 OTP functions"
+	depends on AB3100_CORE
+	default y if AB3100_CORE
 	help
-	  Say yes here to support for Dialog Semiconductor DA9030 (a.k.a
-	  ARAVA) and DA9034 (a.k.a MICCO), these are Power Management IC
-	  usually found on PXA processors-based platforms. This includes
-	  the I2C driver and the core APIs _only_, you have to select
-	  individual components like LCD backlight, voltage regulators,
-	  LEDs and battery-charger under the corresponding menus.
+	  Select this to enable the AB3100 Mixed Signal IC OTP (one-time
+	  programmable memory) support. This exposes a sysfs file to read
+	  out OTP values.
 
-config PMIC_DA9052
-	bool
+config AB8500_CORE
+	bool "ST-Ericsson AB8500 Mixed Signal Power Management chip"
+	depends on GENERIC_HARDIRQS && ABX500_CORE && MFD_DB8500_PRCMU
+	select POWER_SUPPLY
 	select MFD_CORE
+	select IRQ_DOMAIN
+	help
+	  Select this option to enable access to AB8500 power management
+	  chip. This connects to U8500 either on the SSP/SPI bus (deprecated
+	  since hardware version v1.0) or the I2C bus via PRCMU. It also adds
+	  the irq_chip parts for handling the Mixed Signal chip events.
+	  This chip embeds various other multimedia funtionalities as well.
 
-config MFD_DA9052_SPI
-	bool "Support Dialog Semiconductor DA9052/53 PMIC variants with SPI"
-	select REGMAP_SPI
-	select REGMAP_IRQ
-	select PMIC_DA9052
-	depends on SPI_MASTER=y && GENERIC_HARDIRQS
+config AB8500_DEBUG
+       bool "Enable debug info via debugfs"
+       depends on AB8500_CORE && DEBUG_FS
+       default y if DEBUG_FS
+       help
+         Select this option if you want debug information using the debug
+         filesystem, debugfs.
+
+config AB8500_GPADC
+	bool "ST-Ericsson AB8500 GPADC driver"
+	depends on AB8500_CORE && REGULATOR_AB8500
+	default y
 	help
-	  Support for the Dialog Semiconductor DA9052 PMIC
-	  when controlled using SPI. This driver provides common support
-	  for accessing the device, additional drivers must be enabled in
-	  order to use the functionality of the device.
+	  AB8500 GPADC driver used to convert Acc and battery/ac/usb voltage
 
-config MFD_DA9052_I2C
-	bool "Support Dialog Semiconductor DA9052/53 PMIC variants with I2C"
-	select REGMAP_I2C
-	select REGMAP_IRQ
-	select PMIC_DA9052
-	depends on I2C=y && GENERIC_HARDIRQS
+config MFD_DB8500_PRCMU
+	bool "ST-Ericsson DB8500 Power Reset Control Management Unit"
+	depends on UX500_SOC_DB8500
+	select MFD_CORE
 	help
-	  Support for the Dialog Semiconductor DA9052 PMIC
-	  when controlled using I2C. This driver provides common support
-	  for accessing the device, additional drivers must be enabled in
-	  order to use the functionality of the device.
+	  Select this option to enable support for the DB8500 Power Reset
+	  and Control Management Unit. This is basically an autonomous
+	  system controller running an XP70 microprocessor, which is accessed
+	  through a register map.
 
-config MFD_DA9055
-	bool "Dialog Semiconductor DA9055 PMIC Support"
-	select REGMAP_I2C
-	select REGMAP_IRQ
+config MFD_STMPE
+	bool "STMicroelectronics STMPE"
+	depends on (I2C=y || SPI_MASTER=y) && GENERIC_HARDIRQS
 	select MFD_CORE
-	depends on I2C=y && GENERIC_HARDIRQS
 	help
-	  Say yes here for support of Dialog Semiconductor DA9055. This is
-	  a Power Management IC. This driver provides common support for
-	  accessing the device as well as the I2C interface to the chip itself.
-	  Additional drivers must be enabled in order to use the functionality
-	  of the device.
+	  Support for the STMPE family of I/O Expanders from
+	  STMicroelectronics.
 
-	  This driver can be built as a module. If built as a module it will be
-	  called "da9055"
+	  Currently supported devices are:
 
-config PMIC_ADP5520
-	bool "Analog Devices ADP5520/01 MFD PMIC Core Support"
+		STMPE811: GPIO, Touchscreen
+		STMPE1601: GPIO, Keypad
+		STMPE1801: GPIO, Keypad
+		STMPE2401: GPIO, Keypad
+		STMPE2403: GPIO, Keypad
+
+	  This driver provides common support for accessing the device,
+	  additional drivers must be enabled in order to use the functionality
+	  of the device.  Currently available sub drivers are:
+
+		GPIO: stmpe-gpio
+		Keypad: stmpe-keypad
+		Touchscreen: stmpe-ts
+
+menu "STMicroelectronics STMPE Interface Drivers"
+depends on MFD_STMPE
+
+config STMPE_I2C
+	bool "STMicroelectronics STMPE I2C Inteface"
 	depends on I2C=y
+	default y
 	help
-	  Say yes here to add support for Analog Devices AD5520 and ADP5501,
-	  Multifunction Power Management IC. This includes
-	  the I2C driver and the core APIs _only_, you have to select
-	  individual components like LCD backlight, LEDs, GPIOs and Kepad
-	  under the corresponding menus.
+	  This is used to enable I2C interface of STMPE
 
-config MFD_LP8788
-	bool "Texas Instruments LP8788 Power Management Unit Driver"
-	depends on I2C=y && GENERIC_HARDIRQS
-	select MFD_CORE
-	select REGMAP_I2C
-	select IRQ_DOMAIN
+config STMPE_SPI
+	bool "STMicroelectronics STMPE SPI Inteface"
+	depends on SPI_MASTER
 	help
-	  TI LP8788 PMU supports regulators, battery charger, RTC,
-	  ADC, backlight driver and current sinks.
+	  This is used to enable SPI interface of STMPE
+endmenu
 
-config MFD_MAX77686
-	bool "Maxim Semiconductor MAX77686 PMIC Support"
-	depends on I2C=y && GENERIC_HARDIRQS
+config MFD_STA2X11
+	bool "STMicroelectronics STA2X11"
+	depends on STA2X11 && GENERIC_HARDIRQS
 	select MFD_CORE
-	select REGMAP_I2C
-	select IRQ_DOMAIN
+	select REGMAP_MMIO
+
+config MFD_SYSCON
+	bool "System Controller Register R/W Based on Regmap"
+	select REGMAP_MMIO
 	help
-	  Say yes here to support for Maxim Semiconductor MAX77686.
-	  This is a Power Management IC with RTC on chip.
-	  This driver provides common support for accessing the device;
-	  additional drivers must be enabled in order to use the functionality
-	  of the device.
+	  Select this option to enable accessing system control registers
+	  via regmap.
 
-config MFD_MAX77693
-	bool "Maxim Semiconductor MAX77693 PMIC Support"
-	depends on I2C=y && GENERIC_HARDIRQS
+config MFD_DAVINCI_VOICECODEC
+	tristate
 	select MFD_CORE
-	select REGMAP_I2C
-	help
-	  Say yes here to support for Maxim Semiconductor MAX77693.
-	  This is a companion Power Management IC with Flash, Haptic, Charger,
-	  and MUIC(Micro USB Interface Controller) controls on chip.
-	  This driver provides common support for accessing the device;
-	  additional drivers must be enabled in order to use the functionality
-	  of the device.
 
-config MFD_MAX8907
-	tristate "Maxim Semiconductor MAX8907 PMIC Support"
+config MFD_TI_AM335X_TSCADC
+	tristate "TI ADC / Touch Screen chip support"
 	select MFD_CORE
-	depends on I2C=y && GENERIC_HARDIRQS
-	select REGMAP_I2C
-	select REGMAP_IRQ
+	select REGMAP
+	select REGMAP_MMIO
+	depends on GENERIC_HARDIRQS
 	help
-	  Say yes here to support for Maxim Semiconductor MAX8907. This is
-	  a Power Management IC. This driver provides common support for
-	  accessing the device; additional drivers must be enabled in order
-	  to use the functionality of the device.
+	  If you say yes here you get support for Texas Instruments series
+	  of Touch Screen /ADC chips.
+	  To compile this driver as a module, choose M here: the
+	  module will be called ti_am335x_tscadc.
 
-config MFD_MAX8925
-	bool "Maxim Semiconductor MAX8925 PMIC Support"
-	depends on I2C=y && GENERIC_HARDIRQS
-	select MFD_CORE
+config MFD_DM355EVM_MSP
+	bool "TI DaVinci DM355 EVM microcontroller"
+	depends on I2C=y && MACH_DAVINCI_DM355_EVM
 	help
-	  Say yes here to support for Maxim Semiconductor MAX8925. This is
-	  a Power Management IC. This driver provides common support for
-	  accessing the device, additional drivers must be enabled in order
-	  to use the functionality of the device.
+	  This driver supports the MSP430 microcontroller used on these
+	  boards.  MSP430 firmware manages resets and power sequencing,
+	  inputs from buttons and the IR remote, LEDs, an RTC, and more.
 
-config MFD_MAX8997
-	bool "Maxim Semiconductor MAX8997/8966 PMIC Support"
+config MFD_LP8788
+	bool "TI LP8788 Power Management Unit Driver"
 	depends on I2C=y && GENERIC_HARDIRQS
 	select MFD_CORE
+	select REGMAP_I2C
 	select IRQ_DOMAIN
 	help
-	  Say yes here to support for Maxim Semiconductor MAX8997/8966.
-	  This is a Power Management IC with RTC, Flash, Fuel Gauge, Haptic,
-	  MUIC controls on chip.
-	  This driver provides common support for accessing the device;
-	  additional drivers must be enabled in order to use the functionality
-	  of the device.
+	  TI LP8788 PMU supports regulators, battery charger, RTC,
+	  ADC, backlight driver and current sinks.
 
-config MFD_MAX8998
-	bool "Maxim Semiconductor MAX8998/National LP3974 PMIC Support"
-	depends on I2C=y && GENERIC_HARDIRQS
-	select MFD_CORE
+config MFD_OMAP_USB_HOST
+	bool "TI OMAP USBHS core and TLL driver"
+	depends on USB_EHCI_HCD_OMAP || USB_OHCI_HCD_OMAP3
+	default y
 	help
-	  Say yes here to support for Maxim Semiconductor MAX8998 and
-	  National Semiconductor LP3974. This is a Power Management IC.
-	  This driver provides common support for accessing the device,
-	  additional drivers must be enabled in order to use the functionality
-	  of the device.
+	  This is the core driver for the OAMP EHCI and OHCI drivers.
+	  This MFD driver does the required setup functionalities for
+	  OMAP USB Host drivers.
 
-config MFD_SEC_CORE
-	bool "SAMSUNG Electronics PMIC Series Support"
-	depends on I2C=y && GENERIC_HARDIRQS
+config MFD_PALMAS
+	bool "TI Palmas series chips"
 	select MFD_CORE
 	select REGMAP_I2C
 	select REGMAP_IRQ
+	depends on I2C=y && GENERIC_HARDIRQS
 	help
-	 Support for the Samsung Electronics MFD series.
-	 This driver provides common support for accessing the device,
-	 additional drivers must be enabled in order to use the functionality
-	 of the device
+	  If you say yes here you get support for the Palmas
+	  series of PMIC chips from Texas Instruments.
 
-config MFD_ARIZONA
-	select REGMAP
-	select REGMAP_IRQ
+config MFD_TI_SSP
+	tristate "TI Sequencer Serial Port support"
+	depends on ARCH_DAVINCI_TNETV107X && GENERIC_HARDIRQS
 	select MFD_CORE
-	bool
+	---help---
+	  Say Y here if you want support for the Sequencer Serial Port
+	  in a Texas Instruments TNETV107X SoC.
 
-config MFD_ARIZONA_I2C
-	tristate "Support Wolfson Microelectronics Arizona platform with I2C"
-	select MFD_ARIZONA
+	  To compile this driver as a module, choose M here: the
+	  module will be called ti-ssp.
+
+config TPS6105X
+	tristate "TI TPS61050/61052 Boost Converters"
+	depends on I2C
+	select REGULATOR
+	select MFD_CORE
+	select REGULATOR_FIXED_VOLTAGE
+	depends on GENERIC_HARDIRQS
+	help
+	  This option enables a driver for the TP61050/TPS61052
+	  high-power "white LED driver". This boost converter is
+	  sometimes used for other things than white LEDs, and
+	  also contains a GPIO pin.
+
+config TPS65010
+	tristate "TI TPS6501x Power Management chips"
+	depends on I2C && GPIOLIB
+	default y if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_OSK
+	help
+	  If you say yes here you get support for the TPS6501x series of
+	  Power Management chips.  These include voltage regulators,
+	  lithium ion/polymer battery charging, and other features that
+	  are often used in portable devices like cell phones and cameras.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called tps65010.
+
+config TPS6507X
+	tristate "TI TPS6507x Power Management / Touch Screen chips"
 	select MFD_CORE
-	select REGMAP_I2C
 	depends on I2C && GENERIC_HARDIRQS
 	help
-	  Support for the Wolfson Microelectronics Arizona platform audio SoC
-	  core functionality controlled via I2C.
+	  If you say yes here you get support for the TPS6507x series of
+	  Power Management / Touch Screen chips.  These include voltage
+	  regulators, lithium ion/polymer battery charging, touch screen
+	  and other features that are often used in portable devices.
+	  This driver can also be built as a module.  If so, the module
+	  will be called tps6507x.
 
-config MFD_ARIZONA_SPI
-	tristate "Support Wolfson Microelectronics Arizona platform with SPI"
-	select MFD_ARIZONA
+config TPS65911_COMPARATOR
+	tristate
+
+config MFD_TPS65090
+	bool "TI TPS65090 Power Management chips"
+	depends on I2C=y && GENERIC_HARDIRQS
 	select MFD_CORE
-	select REGMAP_SPI
-	depends on SPI_MASTER && GENERIC_HARDIRQS
+	select REGMAP_I2C
+	select REGMAP_IRQ
 	help
-	  Support for the Wolfson Microelectronics Arizona platform audio SoC
-	  core functionality controlled via I2C.
+	  If you say yes here you get support for the TPS65090 series of
+	  Power Management chips.
+	  This driver provides common support for accessing the device,
+	  additional drivers must be enabled in order to use the
+	  functionality of the device.
 
-config MFD_WM5102
-	bool "Support Wolfson Microelectronics WM5102"
-	depends on MFD_ARIZONA
+config MFD_TPS65217
+	tristate "TI TPS65217 Power Management / White LED chips"
+	depends on I2C && GENERIC_HARDIRQS
+	select MFD_CORE
+	select REGMAP_I2C
 	help
-	  Support for Wolfson Microelectronics WM5102 low power audio SoC
+	  If you say yes here you get support for the TPS65217 series of
+	  Power Management / White LED chips.
+	  These include voltage regulators, lithium ion/polymer battery
+	  charger, wled and other features that are often used in portable
+	  devices.
 
-config MFD_WM5110
-	bool "Support Wolfson Microelectronics WM5110"
-	depends on MFD_ARIZONA
-	help
-	  Support for Wolfson Microelectronics WM5110 low power audio SoC
+	  This driver can also be built as a module.  If so, the module
+	  will be called tps65217.
 
-config MFD_WM8400
-	bool "Support Wolfson Microelectronics WM8400"
-	select MFD_CORE
+config MFD_TPS6586X
+	bool "TI TPS6586x Power Management chips"
 	depends on I2C=y && GENERIC_HARDIRQS
+	select MFD_CORE
 	select REGMAP_I2C
 	help
-	  Support for the Wolfson Microelecronics WM8400 PMIC and audio
-	  CODEC.  This driver provides common support for accessing
-	  the device, additional drivers must be enabled in order to use
-	  the functionality of the device.
+	  If you say yes here you get support for the TPS6586X series of
+	  Power Management chips.
+	  This driver provides common support for accessing the device,
+	  additional drivers must be enabled in order to use the
+	  functionality of the device.
 
-config MFD_WM831X
-	bool
-	depends on GENERIC_HARDIRQS
+	  This driver can also be built as a module.  If so, the module
+	  will be called tps6586x.
 
-config MFD_WM831X_I2C
-	bool "Support Wolfson Microelectronics WM831x/2x PMICs with I2C"
+config MFD_TPS65910
+	bool "TI TPS65910 Power Management chip"
+	depends on I2C=y && GPIOLIB && GENERIC_HARDIRQS
 	select MFD_CORE
-	select MFD_WM831X
 	select REGMAP_I2C
+	select REGMAP_IRQ
 	select IRQ_DOMAIN
-	depends on I2C=y && GENERIC_HARDIRQS
 	help
-	  Support for the Wolfson Microelecronics WM831x and WM832x PMICs
-	  when controlled using I2C.  This driver provides common support
-	  for accessing the device, additional drivers must be enabled in
-	  order to use the functionality of the device.
+	  if you say yes here you get support for the TPS65910 series of
+	  Power Management chips.
 
-config MFD_WM831X_SPI
-	bool "Support Wolfson Microelectronics WM831x/2x PMICs with SPI"
-	select MFD_CORE
-	select MFD_WM831X
-	select REGMAP_SPI
-	select IRQ_DOMAIN
-	depends on SPI_MASTER && GENERIC_HARDIRQS
+config MFD_TPS65912
+	bool "TI TPS65912 Power Management chip"
+	depends on GPIOLIB
 	help
-	  Support for the Wolfson Microelecronics WM831x and WM832x PMICs
-	  when controlled using SPI.  This driver provides common support
-	  for accessing the device, additional drivers must be enabled in
-	  order to use the functionality of the device.
+	  If you say yes here you get support for the TPS65912 series of
+	  PM chips.
 
-config MFD_WM8350
-	bool
-	depends on GENERIC_HARDIRQS
+config MFD_TPS65912_I2C
+	bool "TI TPS65912 Power Management chip with I2C"
+	select MFD_CORE
+	select MFD_TPS65912
+	depends on I2C=y && GPIOLIB && GENERIC_HARDIRQS
+	help
+	  If you say yes here you get support for the TPS65912 series of
+	  PM chips with I2C interface.
 
-config MFD_WM8350_I2C
-	bool "Support Wolfson Microelectronics WM8350 with I2C"
-	select MFD_WM8350
-	depends on I2C=y && GENERIC_HARDIRQS
+config MFD_TPS65912_SPI
+	bool "TI TPS65912 Power Management chip with SPI"
+	select MFD_CORE
+	select MFD_TPS65912
+	depends on SPI_MASTER && GPIOLIB && GENERIC_HARDIRQS
 	help
-	  The WM8350 is an integrated audio and power management
-	  subsystem with watchdog and RTC functionality for embedded
-	  systems.  This option enables core support for the WM8350 with
-	  I2C as the control interface.  Additional options must be
-	  selected to enable support for the functionality of the chip.
+	  If you say yes here you get support for the TPS65912 series of
+	  PM chips with SPI interface.
 
-config MFD_WM8994
-	bool "Support Wolfson Microelectronics WM8994"
+config MFD_TPS80031
+	bool "TI TPS80031/TPS80032 Power Management chips"
+	depends on I2C=y && GENERIC_HARDIRQS
 	select MFD_CORE
 	select REGMAP_I2C
 	select REGMAP_IRQ
-	depends on I2C=y && GENERIC_HARDIRQS
 	help
-	  The WM8994 is a highly integrated hi-fi CODEC designed for
-	  smartphone applicatiosn.  As well as audio functionality it
-	  has on board GPIO and regulator functionality which is
-	  supported via the relevant subsystems.  This driver provides
-	  core support for the WM8994, in order to use the actual
-	  functionaltiy of the device other drivers must be enabled.
+	  If you say yes here you get support for the Texas Instruments
+	  TPS80031/ TPS80032 Fully Integrated Power Management with Power
+	  Path and Battery Charger. The device provides five configurable
+	  step-down converters, 11 general purpose LDOs, USB OTG Module,
+	  ADC, RTC, 2 PWM, System Voltage Regulator/Battery Charger with
+	  Power Path from USB, 32K clock generator.
 
-config MFD_PCF50633
-	tristate "Support for NXP PCF50633"
-	depends on I2C
+config TWL4030_CORE
+	bool "TI TWL4030/TWL5030/TWL6030/TPS659x0 Support"
+	depends on I2C=y && GENERIC_HARDIRQS
+	select IRQ_DOMAIN
 	select REGMAP_I2C
 	help
-	  Say yes here if you have NXP PCF50633 chip on your board.
+	  Say yes here if you have TWL4030 / TWL6030 family chip on your board.
 	  This core driver provides register access and IRQ handling
 	  facilities, and registers devices for the various functions
 	  so that function-specific drivers can bind to them.
 
-config PCF50633_ADC
-	tristate "Support for NXP PCF50633 ADC"
-	depends on MFD_PCF50633
-	help
-	 Say yes here if you want to include support for ADC in the
-	 NXP PCF50633 chip.
-
-config PCF50633_GPIO
-	tristate "Support for NXP PCF50633 GPIO"
-	depends on MFD_PCF50633
-	help
-	 Say yes here if you want to include support GPIO for pins on
-	 the PCF50633 chip.
-
-config MFD_MC13783
-	tristate
+	  These multi-function chips are found on many OMAP2 and OMAP3
+	  boards, providing power management, RTC, GPIO, keypad, a
+	  high speed USB OTG transceiver, an audio codec (on most
+	  versions) and many other features.
 
-config MFD_MC13XXX
-	tristate
-	depends on (SPI_MASTER || I2C) && GENERIC_HARDIRQS
-	select MFD_CORE
-	select MFD_MC13783
+config TWL4030_MADC
+	tristate "TI TWL4030 MADC"
+	depends on TWL4030_CORE
 	help
-	  Enable support for the Freescale MC13783 and MC13892 PMICs.
-	  This driver provides common support for accessing the device,
-	  additional drivers must be enabled in order to use the
-	  functionality of the device.
+	This driver provides support for triton TWL4030-MADC. The
+	driver supports both RT and SW conversion methods.
 
-config MFD_MC13XXX_SPI
-	tristate "Freescale MC13783 and MC13892 SPI interface"
-	depends on SPI_MASTER && GENERIC_HARDIRQS
-	select REGMAP_SPI
-	select MFD_MC13XXX
-	help
-	  Select this if your MC13xxx is connected via an SPI bus.
+	This driver can be built as a module. If so it will be
+	named twl4030-madc
 
-config MFD_MC13XXX_I2C
-	tristate "Freescale MC13892 I2C interface"
-	depends on I2C && GENERIC_HARDIRQS
-	select REGMAP_I2C
-	select MFD_MC13XXX
+config TWL4030_POWER
+	bool "TI TWL4030 power resources"
+	depends on TWL4030_CORE && ARM
 	help
-	  Select this if your MC13xxx is connected via an I2C bus.
+	  Say yes here if you want to use the power resources on the
+	  TWL4030 family chips.  Most of these resources are regulators,
+	  which have a separate driver; some are control signals, such
+	  as clock request handshaking.
 
-config ABX500_CORE
-	bool "ST-Ericsson ABX500 Mixed Signal Circuit register functions"
-	default y if ARCH_U300 || ARCH_U8500
-	help
-	  Say yes here if you have the ABX500 Mixed Signal IC family
-	  chips. This core driver expose register access functions.
-	  Functionality specific drivers using these functions can
-	  remain unchanged when IC changes. Binding of the functions to
-	  actual register access is done by the IC core driver.
+	  This driver uses board-specific data to initialize the resources
+	  and load scripts controlling which resources are switched off/on
+	  or reset when a sleep, wakeup or warm reset event occurs.
 
-config AB3100_CORE
-	bool "ST-Ericsson AB3100 Mixed Signal Circuit core functions"
-	depends on I2C=y && ABX500_CORE && GENERIC_HARDIRQS
+config MFD_TWL4030_AUDIO
+	bool "TI TWL4030 Audio"
+	depends on TWL4030_CORE && GENERIC_HARDIRQS
 	select MFD_CORE
-	default y if ARCH_U300
-	help
-	  Select this to enable the AB3100 Mixed Signal IC core
-	  functionality. This connects to a AB3100 on the I2C bus
-	  and expose a number of symbols needed for dependent devices
-	  to read and write registers and subscribe to events from
-	  this multi-functional IC. This is needed to use other features
-	  of the AB3100 such as battery-backed RTC, charging control,
-	  LEDs, vibrator, system power and temperature, power management
-	  and ALSA sound.
-
-config AB3100_OTP
-	tristate "ST-Ericsson AB3100 OTP functions"
-	depends on AB3100_CORE
-	default y if AB3100_CORE
-	help
-	  Select this to enable the AB3100 Mixed Signal IC OTP (one-time
-	  programmable memory) support. This exposes a sysfs file to read
-	  out OTP values.
+	default n
 
-config AB8500_CORE
-	bool "ST-Ericsson AB8500 Mixed Signal Power Management chip"
-	depends on GENERIC_HARDIRQS && ABX500_CORE && MFD_DB8500_PRCMU
-	select POWER_SUPPLY
+config TWL6040_CORE
+	bool "TI TWL6040 audio codec"
+	depends on I2C=y && GENERIC_HARDIRQS
 	select MFD_CORE
-	select IRQ_DOMAIN
-	help
-	  Select this option to enable access to AB8500 power management
-	  chip. This connects to U8500 either on the SSP/SPI bus (deprecated
-	  since hardware version v1.0) or the I2C bus via PRCMU. It also adds
-	  the irq_chip parts for handling the Mixed Signal chip events.
-	  This chip embeds various other multimedia funtionalities as well.
-
-config AB8500_DEBUG
-       bool "Enable debug info via debugfs"
-       depends on AB8500_CORE && DEBUG_FS
-       default y if DEBUG_FS
-       help
-         Select this option if you want debug information using the debug
-         filesystem, debugfs.
-
-config AB8500_GPADC
-	bool "AB8500 GPADC driver"
-	depends on AB8500_CORE && REGULATOR_AB8500
-	default y
+	select REGMAP_I2C
+	select REGMAP_IRQ
+	default n
 	help
-	  AB8500 GPADC driver used to convert Acc and battery/ac/usb voltage
+	  Say yes here if you want support for Texas Instruments TWL6040 audio
+	  codec.
+	  This driver provides common support for accessing the device,
+	  additional drivers must be enabled in order to use the
+	  functionality of the device (audio, vibra).
 
-config EZX_PCAP
-	bool "PCAP Support"
-	depends on GENERIC_HARDIRQS && SPI_MASTER
+config MENELAUS
+	bool "TI TWL92330/Menelaus PM chip"
+	depends on I2C=y && ARCH_OMAP2
 	help
-	  This enables the PCAP ASIC present on EZX Phones. This is
-	  needed for MMC, TouchScreen, Sound, USB, etc..
+	  If you say yes here you get support for the Texas Instruments
+	  TWL92330/Menelaus Power Management chip. This include voltage
+	  regulators, Dual slot memory card transceivers, real-time clock
+	  and other features that are often used in portable devices like
+	  cell phones and PDAs.
 
-config MFD_DB8500_PRCMU
-	bool "ST-Ericsson DB8500 Power Reset Control Management Unit"
-	depends on UX500_SOC_DB8500
+config MFD_WL1273_CORE
+	tristate "TI WL1273 FM radio"
+	depends on I2C && GENERIC_HARDIRQS
 	select MFD_CORE
+	default n
 	help
-	  Select this option to enable support for the DB8500 Power Reset
-	  and Control Management Unit. This is basically an autonomous
-	  system controller running an XP70 microprocessor, which is accessed
-	  through a register map.
+	  This is the core driver for the TI WL1273 FM radio. This MFD
+	  driver connects the radio-wl1273 V4L2 module and the wl1273
+	  audio codec.
 
-config MFD_CS5535
-	tristate "Support for CS5535 and CS5536 southbridge core functions"
+config MFD_LM3533
+	tristate "TI/National Semiconductor LM3533 Lighting Power chip"
+	depends on I2C
 	select MFD_CORE
-	depends on PCI && X86
-	---help---
-	  This is the core driver for CS5535/CS5536 MFD functions.  This is
-          necessary for using the board's GPIO and MFGPT functionality.
+	select REGMAP_I2C
+	depends on GENERIC_HARDIRQS
+	help
+	  Say yes here to enable support for National Semiconductor / TI
+	  LM3533 Lighting Power chips.
+
+	  This driver provides common support for accessing the device;
+	  additional drivers must be enabled in order to use the LED,
+	  backlight or ambient-light-sensor functionality of the device.
 
 config MFD_TIMBERDALE
-	tristate "Support for the Timberdale FPGA"
+	tristate "Timberdale FPGA"
 	select MFD_CORE
 	depends on PCI && GPIOLIB
 	---help---
@@ -893,54 +945,48 @@ config MFD_TIMBERDALE
 	The timberdale FPGA can be found on the Intel Atom development board
 	for in-vehicle infontainment, called Russellville.
 
-config LPC_SCH
-	tristate "Intel SCH LPC"
-	depends on PCI && GENERIC_HARDIRQS
+config MFD_TC3589X
+	bool "Toshiba TC35892 and variants"
+	depends on I2C=y && GENERIC_HARDIRQS
 	select MFD_CORE
 	help
-	  LPC bridge function of the Intel SCH provides support for
-	  System Management Bus and General Purpose I/O.
+	  Support for the Toshiba TC35892 and variants I/O Expander.
 
-config LPC_ICH
-	tristate "Intel ICH LPC"
-	depends on PCI && GENERIC_HARDIRQS
-	select MFD_CORE
-	help
-	  The LPC bridge function of the Intel ICH provides support for
-	  many functional units. This driver provides needed support for
-	  other drivers to control these functions, currently GPIO and
-	  watchdog.
+	  This driver provides common support for accessing the device,
+	  additional drivers must be enabled in order to use the
+	  functionality of the device.
 
-config MFD_RDC321X
-	tristate "Support for RDC-R321x southbridge"
+config MFD_TMIO
+	bool
+	default n
+
+config MFD_T7L66XB
+	bool "Toshiba T7L66XB"
+	depends on ARM && HAVE_CLK && GENERIC_HARDIRQS
 	select MFD_CORE
-	depends on PCI && GENERIC_HARDIRQS
+	select MFD_TMIO
 	help
-	  Say yes here if you want to have support for the RDC R-321x SoC
-	  southbridge which provides access to GPIOs and Watchdog using the
-	  southbridge PCI device configuration space.
+	  Support for Toshiba Mobile IO Controller T7L66XB
 
-config MFD_JANZ_CMODIO
-	tristate "Support for Janz CMOD-IO PCI MODULbus Carrier Board"
+config MFD_TC6387XB
+	bool "Toshiba TC6387XB"
+	depends on ARM && HAVE_CLK
 	select MFD_CORE
-	depends on PCI && GENERIC_HARDIRQS
+	select MFD_TMIO
 	help
-	  This is the core driver for the Janz CMOD-IO PCI MODULbus
-	  carrier board. This device is a PCI to MODULbus bridge which may
-	  host many different types of MODULbus daughterboards, including
-	  CAN and GPIO controllers.
+	  Support for Toshiba Mobile IO Controller TC6387XB
 
-config MFD_JZ4740_ADC
-	bool "Support for the JZ4740 SoC ADC core"
+config MFD_TC6393XB
+	bool "Toshiba TC6393XB"
+	depends on ARM && HAVE_CLK
+	select GPIOLIB
 	select MFD_CORE
-	select GENERIC_IRQ_CHIP
-	depends on MACH_JZ4740
+	select MFD_TMIO
 	help
-	  Say yes here if you want support for the ADC unit in the JZ4740 SoC.
-	  This driver is necessary for jz4740-battery and jz4740-hwmon driver.
+	  Support for Toshiba Mobile IO Controller TC6393XB
 
 config MFD_VX855
-	tristate "Support for VIA VX855/VX875 integrated south bridge"
+	tristate "VIA VX855/VX875 integrated south bridge"
 	depends on PCI && GENERIC_HARDIRQS
 	select MFD_CORE
 	help
@@ -948,156 +994,113 @@ config MFD_VX855
 	  VIA VX855/VX875 south bridge. You will need to enable the vx855_spi
 	  and/or vx855_gpio drivers for this to do anything useful.
 
-config MFD_WL1273_CORE
-	tristate "Support for TI WL1273 FM radio."
-	depends on I2C && GENERIC_HARDIRQS
+config MFD_ARIZONA
+	select REGMAP
+	select REGMAP_IRQ
 	select MFD_CORE
-	default n
-	help
-	  This is the core driver for the TI WL1273 FM radio. This MFD
-	  driver connects the radio-wl1273 V4L2 module and the wl1273
-	  audio codec.
-
-config MFD_OMAP_USB_HOST
-	bool "Support OMAP USBHS core and TLL driver"
-	depends on USB_EHCI_HCD_OMAP || USB_OHCI_HCD_OMAP3
-	default y
-	help
-	  This is the core driver for the OAMP EHCI and OHCI drivers.
-	  This MFD driver does the required setup functionalities for
-	  OMAP USB Host drivers.
-
-config MFD_PM8XXX
-	tristate
+	bool
 
-config MFD_PM8921_CORE
-	tristate "Qualcomm PM8921 PMIC chip"
-	depends on MSM_SSBI
+config MFD_ARIZONA_I2C
+	tristate "Wolfson Microelectronics Arizona platform with I2C"
+	select MFD_ARIZONA
 	select MFD_CORE
-	select MFD_PM8XXX
-	help
-	  If you say yes to this option, support will be included for the
-	  built-in PM8921 PMIC chip.
-
-	  This is required if your board has a PM8921 and uses its features,
-	  such as: MPPs, GPIOs, regulators, interrupts, and PWM.
-
-	  Say M here if you want to include support for PM8921 chip as a module.
-	  This will build a module called "pm8921-core".
-
-config MFD_PM8XXX_IRQ
-	bool "Support for Qualcomm PM8xxx IRQ features"
-	depends on MFD_PM8XXX
-	default y if MFD_PM8XXX
+	select REGMAP_I2C
+	depends on I2C && GENERIC_HARDIRQS
 	help
-	  This is the IRQ driver for Qualcomm PM 8xxx PMIC chips.
-
-	  This is required to use certain other PM 8xxx features, such as GPIO
-	  and MPP.
-
-config TPS65911_COMPARATOR
-	tristate
+	  Support for the Wolfson Microelectronics Arizona platform audio SoC
+	  core functionality controlled via I2C.
 
-config MFD_TPS65090
-	bool "TPS65090 Power Management chips"
-	depends on I2C=y && GENERIC_HARDIRQS
+config MFD_ARIZONA_SPI
+	tristate "Wolfson Microelectronics Arizona platform with SPI"
+	select MFD_ARIZONA
 	select MFD_CORE
-	select REGMAP_I2C
-	select REGMAP_IRQ
+	select REGMAP_SPI
+	depends on SPI_MASTER && GENERIC_HARDIRQS
 	help
-	  If you say yes here you get support for the TPS65090 series of
-	  Power Management chips.
-	  This driver provides common support for accessing the device,
-	  additional drivers must be enabled in order to use the
-	  functionality of the device.
+	  Support for the Wolfson Microelectronics Arizona platform audio SoC
+	  core functionality controlled via I2C.
 
-config MFD_AAT2870_CORE
-	bool "Support for the AnalogicTech AAT2870"
-	select MFD_CORE
-	depends on I2C=y && GPIOLIB && GENERIC_HARDIRQS
+config MFD_WM5102
+	bool "Wolfson Microelectronics WM5102"
+	depends on MFD_ARIZONA
 	help
-	  If you say yes here you get support for the AAT2870.
-	  This driver provides common support for accessing the device,
-	  additional drivers must be enabled in order to use the
-	  functionality of the device.
+	  Support for Wolfson Microelectronics WM5102 low power audio SoC
 
-config MFD_INTEL_MSIC
-	bool "Support for Intel MSIC"
-	depends on INTEL_SCU_IPC
-	select MFD_CORE
+config MFD_WM5110
+	bool "Wolfson Microelectronics WM5110"
+	depends on MFD_ARIZONA
 	help
-	  Select this option to enable access to Intel MSIC (Avatele
-	  Passage) chip. This chip embeds audio, battery, GPIO, etc.
-	  devices used in Intel Medfield platforms.
+	  Support for Wolfson Microelectronics WM5110 low power audio SoC
 
-config MFD_RC5T583
-	bool "Ricoh RC5T583 Power Management system device"
-	depends on I2C=y && GENERIC_HARDIRQS
+config MFD_WM8400
+	bool "Wolfson Microelectronics WM8400"
 	select MFD_CORE
+	depends on I2C=y && GENERIC_HARDIRQS
 	select REGMAP_I2C
 	help
-	  Select this option to get support for the RICOH583 Power
-	  Management system device.
-	  This driver provides common support for accessing the device
-	  through i2c interface. The device supports multiple sub-devices
-	  like GPIO, interrupts, RTC, LDO and DCDC regulators, onkey.
-	  Additional drivers must be enabled in order to use the
-	  different functionality of the device.
-
-config MFD_STA2X11
-	bool "STA2X11 multi function device support"
-	depends on STA2X11 && GENERIC_HARDIRQS
-	select MFD_CORE
-	select REGMAP_MMIO
+	  Support for the Wolfson Microelecronics WM8400 PMIC and audio
+	  CODEC.  This driver provides common support for accessing
+	  the device, additional drivers must be enabled in order to use
+	  the functionality of the device.
 
-config MFD_SYSCON
-	bool "System Controller Register R/W Based on Regmap"
-	select REGMAP_MMIO
-	help
-	  Select this option to enable accessing system control registers
-	  via regmap.
+config MFD_WM831X
+	bool
+	depends on GENERIC_HARDIRQS
 
-config MFD_PALMAS
-	bool "Support for the TI Palmas series chips"
+config MFD_WM831X_I2C
+	bool "Wolfson Microelectronics WM831x/2x PMICs with I2C"
 	select MFD_CORE
+	select MFD_WM831X
 	select REGMAP_I2C
-	select REGMAP_IRQ
+	select IRQ_DOMAIN
 	depends on I2C=y && GENERIC_HARDIRQS
 	help
-	  If you say yes here you get support for the Palmas
-	  series of PMIC chips from Texas Instruments.
+	  Support for the Wolfson Microelecronics WM831x and WM832x PMICs
+	  when controlled using I2C.  This driver provides common support
+	  for accessing the device, additional drivers must be enabled in
+	  order to use the functionality of the device.
 
-config MFD_VIPERBOARD
-        tristate "Support for Nano River Technologies Viperboard"
+config MFD_WM831X_SPI
+	bool "Wolfson Microelectronics WM831x/2x PMICs with SPI"
 	select MFD_CORE
-	depends on USB && GENERIC_HARDIRQS
-	default n
+	select MFD_WM831X
+	select REGMAP_SPI
+	select IRQ_DOMAIN
+	depends on SPI_MASTER && GENERIC_HARDIRQS
 	help
-	  Say yes here if you want support for Nano River Technologies
-	  Viperboard.
-	  There are mfd cell drivers available for i2c master, adc and
-	  both gpios found on the board. The spi part does not yet
-	  have a driver.
-	  You need to select the mfd cell drivers separately.
-	  The drivers do not support all features the board exposes.
+	  Support for the Wolfson Microelecronics WM831x and WM832x PMICs
+	  when controlled using SPI.  This driver provides common support
+	  for accessing the device, additional drivers must be enabled in
+	  order to use the functionality of the device.
 
-config MFD_RETU
-	tristate "Support for Retu multi-function device"
-	select MFD_CORE
-	depends on I2C && GENERIC_HARDIRQS
-	select REGMAP_IRQ
+config MFD_WM8350
+	bool
+	depends on GENERIC_HARDIRQS
+
+config MFD_WM8350_I2C
+	bool "Wolfson Microelectronics WM8350 with I2C"
+	select MFD_WM8350
+	depends on I2C=y && GENERIC_HARDIRQS
 	help
-	  Retu is a multi-function device found on Nokia Internet Tablets
-	  (770, N800 and N810).
+	  The WM8350 is an integrated audio and power management
+	  subsystem with watchdog and RTC functionality for embedded
+	  systems.  This option enables core support for the WM8350 with
+	  I2C as the control interface.  Additional options must be
+	  selected to enable support for the functionality of the chip.
 
-config MFD_AS3711
-	bool "Support for AS3711"
+config MFD_WM8994
+	bool "Wolfson Microelectronics WM8994"
 	select MFD_CORE
 	select REGMAP_I2C
 	select REGMAP_IRQ
 	depends on I2C=y && GENERIC_HARDIRQS
 	help
-	  Support for the AS3711 PMIC from AMS
+	  The WM8994 is a highly integrated hi-fi CODEC designed for
+	  smartphone applicatiosn.  As well as audio functionality it
+	  has on board GPIO and regulator functionality which is
+	  supported via the relevant subsystems.  This driver provides
+	  core support for the WM8994, in order to use the actual
+	  functionaltiy of the device other drivers must be enabled.
 
 endmenu
 endif
-- 
cgit v1.2.3


From d011c450814eb6b5418c84dd0cac8b6eb99c42dc Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 9 Apr 2013 16:16:36 +0530
Subject: mfd: omap-usb-host: Convert to devm_ioremap_resource()

Use the newly introduced devm_ioremap_resource() instead of
devm_request_and_ioremap() which provides more consistent error handling.

devm_ioremap_resource() provides its own error messages; so all explicit
error messages can be removed from the failure code paths.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/omap-usb-host.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index d3b6e9491b62..759fae3ca7fb 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -30,6 +30,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
+#include <linux/err.h>
 
 #include "omap-usb.h"
 
@@ -608,11 +609,9 @@ static int usbhs_omap_probe(struct platform_device *pdev)
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	omap->uhh_base = devm_request_and_ioremap(dev, res);
-	if (!omap->uhh_base) {
-		dev_err(dev, "Resource request/ioremap failed\n");
-		return -EADDRNOTAVAIL;
-	}
+	omap->uhh_base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(omap->uhh_base))
+		return PTR_ERR(omap->uhh_base);
 
 	omap->pdata = pdata;
 
-- 
cgit v1.2.3


From 651da3d4026ece555853694f51dbad566f113793 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 9 Apr 2013 16:16:37 +0530
Subject: mfd: omap-usb-tll: Convert to devm_ioremap_resource()

Use the newly introduced devm_ioremap_resource() instead of
devm_request_and_ioremap() which provides more consistent error handling.

devm_ioremap_resource() provides its own error messages; so all explicit
error messages can be removed from the failure code paths.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/omap-usb-tll.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c
index 8f4d5a1fcd1a..e59ac4cbac96 100644
--- a/drivers/mfd/omap-usb-tll.c
+++ b/drivers/mfd/omap-usb-tll.c
@@ -226,12 +226,9 @@ static int usbtll_omap_probe(struct platform_device *pdev)
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	tll->base = devm_request_and_ioremap(dev, res);
-	if (!tll->base) {
-		ret = -EADDRNOTAVAIL;
-		dev_err(dev, "Resource request/ioremap failed:%d\n", ret);
-		return ret;
-	}
+	tll->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(tll->base))
+		return PTR_ERR(tll->base);
 
 	platform_set_drvdata(pdev, tll);
 	pm_runtime_enable(dev);
-- 
cgit v1.2.3


From daba96d6f38601552d08d52c15ef3c5660f1275f Mon Sep 17 00:00:00 2001
From: Alexander Shiyan <shc_work@mail.ru>
Date: Tue, 9 Apr 2013 21:50:02 +0400
Subject: mfd: syscon: Fix warnings when printing resource_size_t

Gets rid of these warnings when compile module for 64 bit targets:
  CC      drivers/mfd/syscon.o
  drivers/mfd/syscon.c: In function 'syscon_probe':
  drivers/mfd/syscon.c:155:2: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'resource_size_t' [-Wformat]
  drivers/mfd/syscon.c:155:2: warning: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'resource_size_t' [-Wformat]

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/syscon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/syscon.c b/drivers/mfd/syscon.c
index 7905d36d0517..962a6e17a01a 100644
--- a/drivers/mfd/syscon.c
+++ b/drivers/mfd/syscon.c
@@ -152,7 +152,7 @@ static int syscon_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, syscon);
 
-	dev_info(dev, "regmap 0x%x-0x%x registered\n", res->start, res->end);
+	dev_info(dev, "regmap %pR registered\n", res);
 
 	return 0;
 }
-- 
cgit v1.2.3


From d98a5384d7dbe47b8673eb281aaf339173376245 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 9 Apr 2013 20:52:58 +0100
Subject: mfd: db8500-prcmu: Support platform dependant device selection

The main aim for this cycle is to have the u8540 booting to a
console. However, the u8540 doesn't support all of the u8500
platform devices yet. After this stage is complete we can then
fill in the inadequacies, such as specific clock support at a
later date. To achieve this we're placing devices supported by
all platforms into a common device structure and the remaining
ones into a platform specific one.

Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/db8500-prcmu.c | 32 ++++++++++++++++++++++++--------
 1 file changed, 24 insertions(+), 8 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c
index 25dda8d7cb00..319b8abe742b 100644
--- a/drivers/mfd/db8500-prcmu.c
+++ b/drivers/mfd/db8500-prcmu.c
@@ -24,6 +24,7 @@
 #include <linux/jiffies.h>
 #include <linux/bitops.h>
 #include <linux/fs.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/uaccess.h>
 #include <linux/mfd/core.h>
@@ -3067,6 +3068,15 @@ static struct db8500_thsens_platform_data db8500_thsens_data = {
 	.num_trips = 4,
 };
 
+static struct mfd_cell common_prcmu_devs[] = {
+	{
+		.name = "ux500_wdt",
+		.platform_data = &db8500_wdt_pdata,
+		.pdata_size = sizeof(db8500_wdt_pdata),
+		.id = -1,
+	},
+};
+
 static struct mfd_cell db8500_prcmu_devs[] = {
 	{
 		.name = "db8500-prcmu-regulators",
@@ -3080,12 +3090,6 @@ static struct mfd_cell db8500_prcmu_devs[] = {
 		.platform_data = &db8500_cpufreq_table,
 		.pdata_size = sizeof(db8500_cpufreq_table),
 	},
-	{
-		.name = "ux500_wdt",
-		.platform_data = &db8500_wdt_pdata,
-		.pdata_size = sizeof(db8500_wdt_pdata),
-		.id = -1,
-	},
 	{
 		.name = "db8500-thermal",
 		.num_resources = ARRAY_SIZE(db8500_thsens_resources),
@@ -3175,13 +3179,25 @@ static int db8500_prcmu_probe(struct platform_device *pdev)
 
 	db8500_prcmu_update_cpufreq();
 
-	err = mfd_add_devices(&pdev->dev, 0, db8500_prcmu_devs,
-			      ARRAY_SIZE(db8500_prcmu_devs), NULL, 0, db8500_irq_domain);
+	err = mfd_add_devices(&pdev->dev, 0, common_prcmu_devs,
+			      ARRAY_SIZE(common_prcmu_devs), NULL, 0, db8500_irq_domain);
 	if (err) {
 		pr_err("prcmu: Failed to add subdevices\n");
 		return err;
 	}
 
+	/* TODO: Remove restriction when clk definitions are available. */
+	if (!of_machine_is_compatible("st-ericsson,u8540")) {
+		err = mfd_add_devices(&pdev->dev, 0, db8500_prcmu_devs,
+				      ARRAY_SIZE(db8500_prcmu_devs), NULL, 0,
+				      db8500_irq_domain);
+		if (err) {
+			mfd_remove_devices(&pdev->dev);
+			pr_err("prcmu: Failed to add subdevices\n");
+			goto no_irq_return;
+		}
+	}
+
 	err = db8500_prcmu_register_ab8500(&pdev->dev, pdata->ab_platdata,
 					   pdata->ab_irq);
 	if (err) {
-- 
cgit v1.2.3


From b50cf35bf41f8aa451667d8ff01e13b9ab17dc86 Mon Sep 17 00:00:00 2001
From: Rhyland Klein <rklein@nvidia.com>
Date: Wed, 10 Apr 2013 13:14:55 -0400
Subject: mfd: tps65090: Add compatible string for charger subnode

This patch adds the of_compatible value for the tps65090 charger
subnode used when loading the driver to find its properties
and of_node.

Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/tps65090.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/tps65090.c b/drivers/mfd/tps65090.c
index 88846aeab74f..fbd6ee67b5a5 100644
--- a/drivers/mfd/tps65090.c
+++ b/drivers/mfd/tps65090.c
@@ -72,6 +72,7 @@ static struct mfd_cell tps65090s[] = {
 		.name = "tps65090-charger",
 		.num_resources = ARRAY_SIZE(charger_resources),
 		.resources = &charger_resources[0],
+		.of_compatible = "ti,tps65090-charger",
 	},
 };
 
-- 
cgit v1.2.3


From 39aa3b5a59ab1baff809821ed1db9682a8245656 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Thu, 11 Apr 2013 18:11:50 +0100
Subject: mfd: wm8994: Add device ID data to WM8994 OF device IDs

We can actually read this back from the device but we use this when
registered using standard I2C board data registration so make sure
it's there for OF too.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Tested-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/wm8994-core.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index cdea84e727e5..3f8d591e9fe2 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -673,9 +673,9 @@ static void wm8994_device_exit(struct wm8994 *wm8994)
 }
 
 static const struct of_device_id wm8994_of_match[] = {
-	{ .compatible = "wlf,wm1811", },
-	{ .compatible = "wlf,wm8994", },
-	{ .compatible = "wlf,wm8958", },
+	{ .compatible = "wlf,wm1811", .data = (void *)WM1811 },
+	{ .compatible = "wlf,wm8994", .data = (void *)WM8994 },
+	{ .compatible = "wlf,wm8958", .data = (void *)WM8958 },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, wm8994_of_match);
-- 
cgit v1.2.3


From 20fb277250816d6c3ff326552be0fea4173fd8ca Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Thu, 11 Apr 2013 18:11:51 +0100
Subject: mfd: wm8994: Add some OF properties

Add properties for some of the more important bits of platform data and
fill out the binding document.

Not all of the current platform data is suitable for the sort of fixed
configuration that is done using DT, some of it should have runtime
mechanisms added instead and some is unlikely to ever be used in practical
systems.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 Documentation/devicetree/bindings/sound/wm8994.txt | 58 ++++++++++++++++-
 drivers/mfd/wm8994-core.c                          | 73 +++++++++++++++++++++-
 2 files changed, 128 insertions(+), 3 deletions(-)

(limited to 'drivers/mfd')

diff --git a/Documentation/devicetree/bindings/sound/wm8994.txt b/Documentation/devicetree/bindings/sound/wm8994.txt
index 7a7eb1e7bda6..f2f3e80934d2 100644
--- a/Documentation/devicetree/bindings/sound/wm8994.txt
+++ b/Documentation/devicetree/bindings/sound/wm8994.txt
@@ -5,14 +5,70 @@ on the board).
 
 Required properties:
 
-  - compatible : "wlf,wm1811", "wlf,wm8994", "wlf,wm8958"
+  - compatible : One of "wlf,wm1811", "wlf,wm8994" or "wlf,wm8958".
 
   - reg : the I2C address of the device for I2C, the chip select
           number for SPI.
 
+  - gpio-controller : Indicates this device is a GPIO controller.
+  - #gpio-cells : Must be 2. The first cell is the pin number and the
+    second cell is used to specify optional parameters (currently unused).
+
+  - AVDD2-supply, DBVDD1-supply, DBVDD2-supply, DBVDD3-supply, CPVDD-supply,
+    SPKVDD1-supply, SPKVDD2-supply : power supplies for the device, as covered
+    in Documentation/devicetree/bindings/regulator/regulator.txt
+
+Optional properties:
+
+  - interrupts : The interrupt line the IRQ signal for the device is
+    connected to.  This is optional, if it is not connected then none
+    of the interrupt related properties should be specified.
+  - interrupt-controller : These devices contain interrupt controllers
+    and may provide interrupt services to other devices if they have an
+    interrupt line connected.
+  - interrupt-parent : The parent interrupt controller.
+  - #interrupt-cells: the number of cells to describe an IRQ, this should be 2.
+    The first cell is the IRQ number.
+    The second cell is the flags, encoded as the trigger masks from
+    Documentation/devicetree/bindings/interrupts.txt
+
+  - wlf,gpio-cfg : A list of GPIO configuration register values. If absent,
+    no configuration of these registers is performed. If any value is
+    over 0xffff then the register will be left as default. If present 11
+    values must be supplied.
+
+  - wlf,micbias-cfg : Two MICBIAS register values for WM1811 or
+    WM8958.  If absent the register defaults will be used.
+
+  - wlf,ldo1ena : GPIO specifier for control of LDO1ENA input to device.
+  - wlf,ldo2ena : GPIO specifier for control of LDO2ENA input to device.
+
+  - wlf,lineout1-se : If present LINEOUT1 is in single ended mode.
+  - wlf,lineout2-se : If present LINEOUT2 is in single ended mode.
+
+  - wlf,lineout1-feedback : If present LINEOUT1 has common mode feedback
+    connected.
+  - wlf,lineout2-feedback : If present LINEOUT2 has common mode feedback
+    connected.
+
+  - wlf,ldoena-always-driven : If present LDOENA is always driven.
+
 Example:
 
 codec: wm8994@1a {
 	compatible = "wlf,wm8994";
 	reg = <0x1a>;
+
+	gpio-controller;
+	#gpio-cells = <2>;
+
+	lineout1-se;
+
+	AVDD2-supply = <&regulator>;
+	CPVDD-supply = <&regulator>;
+	DBVDD1-supply = <&regulator>;
+	DBVDD2-supply = <&regulator>;
+	DBVDD3-supply = <&regulator>;
+	SPKVDD1-supply = <&regulator>;
+	SPKVDD2-supply = <&regulator>;
 };
diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index 3f8d591e9fe2..00e4fe2f3c75 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -19,6 +19,9 @@
 #include <linux/err.h>
 #include <linux/delay.h>
 #include <linux/mfd/core.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
 #include <linux/pm_runtime.h>
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
@@ -396,6 +399,60 @@ static const struct reg_default wm1811_reva_patch[] = {
 	{ 0x102, 0x0 },
 };
 
+#ifdef CONFIG_OF
+static int wm8994_set_pdata_from_of(struct wm8994 *wm8994)
+{
+	struct device_node *np = wm8994->dev->of_node;
+	struct wm8994_pdata *pdata = &wm8994->pdata;
+	int i;
+
+	if (!np)
+		return 0;
+
+	if (of_property_read_u32_array(np, "wlf,gpio-cfg", pdata->gpio_defaults,
+				       ARRAY_SIZE(pdata->gpio_defaults)) >= 0) {
+		for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
+			if (wm8994->pdata.gpio_defaults[i] == 0)
+				pdata->gpio_defaults[i]
+					= WM8994_CONFIGURE_GPIO;
+		}
+	}
+
+	of_property_read_u32_array(np, "wlf,micbias-cfg", pdata->micbias,
+				   ARRAY_SIZE(pdata->micbias));
+
+	pdata->lineout1_diff = true;
+	pdata->lineout2_diff = true;
+	if (of_find_property(np, "wlf,lineout1-se", NULL))
+		pdata->lineout1_diff = false;
+	if (of_find_property(np, "wlf,lineout2-se", NULL))
+		pdata->lineout2_diff = false;
+
+	if (of_find_property(np, "wlf,lineout1-feedback", NULL))
+		pdata->lineout1fb = true;
+	if (of_find_property(np, "wlf,lineout2-feedback", NULL))
+		pdata->lineout2fb = true;
+
+	if (of_find_property(np, "wlf,ldoena-always-driven", NULL))
+		pdata->lineout2fb = true;
+
+	pdata->ldo[0].enable = of_get_named_gpio(np, "wlf,ldo1ena", 0);
+	if (pdata->ldo[0].enable < 0)
+		pdata->ldo[0].enable = 0;
+
+	pdata->ldo[1].enable = of_get_named_gpio(np, "wlf,ldo2ena", 0);
+	if (pdata->ldo[1].enable < 0)
+		pdata->ldo[1].enable = 0;
+
+	return 0;
+}
+#else
+static int wm8994_set_pdata_from_of(struct wm8994 *wm8994)
+{
+	return 0;
+}
+#endif
+
 /*
  * Instantiate the generic non-control parts of the device.
  */
@@ -414,6 +471,10 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq)
 	}
 	pdata = &wm8994->pdata;
 
+	ret = wm8994_set_pdata_from_of(wm8994);
+	if (ret != 0)
+		return ret;
+
 	dev_set_drvdata(wm8994->dev, wm8994);
 
 	/* Add the on-chip regulators first for bootstrapping */
@@ -683,6 +744,7 @@ MODULE_DEVICE_TABLE(of, wm8994_of_match);
 static int wm8994_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
+	const struct of_device_id *of_id;
 	struct wm8994 *wm8994;
 	int ret;
 
@@ -693,7 +755,14 @@ static int wm8994_i2c_probe(struct i2c_client *i2c,
 	i2c_set_clientdata(i2c, wm8994);
 	wm8994->dev = &i2c->dev;
 	wm8994->irq = i2c->irq;
-	wm8994->type = id->driver_data;
+
+	if (i2c->dev.of_node) {
+		of_id = of_match_device(wm8994_of_match, &i2c->dev);
+		if (of_id)
+			wm8994->type = (int)of_id->data;
+	} else {
+		wm8994->type = id->driver_data;
+	}
 
 	wm8994->regmap = devm_regmap_init_i2c(i2c, &wm8994_base_regmap_config);
 	if (IS_ERR(wm8994->regmap)) {
@@ -733,7 +802,7 @@ static struct i2c_driver wm8994_i2c_driver = {
 		.name = "wm8994",
 		.owner = THIS_MODULE,
 		.pm = &wm8994_pm_ops,
-		.of_match_table = wm8994_of_match,
+		.of_match_table = of_match_ptr(wm8994_of_match),
 	},
 	.probe = wm8994_i2c_probe,
 	.remove = wm8994_i2c_remove,
-- 
cgit v1.2.3


From 360e64d8bbe7c78784d769a60d152804f5079577 Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Sun, 14 Apr 2013 20:35:48 +0200
Subject: mfd: ucb1400: Pass ucb1400-gpio data through ac97 bus

Cc: Jean Delvare <jdelvare@suse.de>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/gpio/gpio-ucb1400.c | 19 ++++++-------------
 drivers/mfd/ucb1400_core.c  |  5 +++++
 include/linux/ucb1400.h     | 18 ++++++------------
 3 files changed, 17 insertions(+), 25 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/gpio/gpio-ucb1400.c b/drivers/gpio/gpio-ucb1400.c
index 26405efe0f9f..6d0feb234d3c 100644
--- a/drivers/gpio/gpio-ucb1400.c
+++ b/drivers/gpio/gpio-ucb1400.c
@@ -12,8 +12,6 @@
 #include <linux/module.h>
 #include <linux/ucb1400.h>
 
-struct ucb1400_gpio_data *ucbdata;
-
 static int ucb1400_gpio_dir_in(struct gpio_chip *gc, unsigned off)
 {
 	struct ucb1400_gpio *gpio;
@@ -50,7 +48,7 @@ static int ucb1400_gpio_probe(struct platform_device *dev)
 	struct ucb1400_gpio *ucb = dev->dev.platform_data;
 	int err = 0;
 
-	if (!(ucbdata && ucbdata->gpio_offset)) {
+	if (!(ucb && ucb->gpio_offset)) {
 		err = -EINVAL;
 		goto err;
 	}
@@ -58,7 +56,7 @@ static int ucb1400_gpio_probe(struct platform_device *dev)
 	platform_set_drvdata(dev, ucb);
 
 	ucb->gc.label = "ucb1400_gpio";
-	ucb->gc.base = ucbdata->gpio_offset;
+	ucb->gc.base = ucb->gpio_offset;
 	ucb->gc.ngpio = 10;
 	ucb->gc.owner = THIS_MODULE;
 
@@ -72,8 +70,8 @@ static int ucb1400_gpio_probe(struct platform_device *dev)
 	if (err)
 		goto err;
 
-	if (ucbdata && ucbdata->gpio_setup)
-		err = ucbdata->gpio_setup(&dev->dev, ucb->gc.ngpio);
+	if (ucb && ucb->gpio_setup)
+		err = ucb->gpio_setup(&dev->dev, ucb->gc.ngpio);
 
 err:
 	return err;
@@ -85,8 +83,8 @@ static int ucb1400_gpio_remove(struct platform_device *dev)
 	int err = 0;
 	struct ucb1400_gpio *ucb = platform_get_drvdata(dev);
 
-	if (ucbdata && ucbdata->gpio_teardown) {
-		err = ucbdata->gpio_teardown(&dev->dev, ucb->gc.ngpio);
+	if (ucb && ucb->gpio_teardown) {
+		err = ucb->gpio_teardown(&dev->dev, ucb->gc.ngpio);
 		if (err)
 			return err;
 	}
@@ -103,11 +101,6 @@ static struct platform_driver ucb1400_gpio_driver = {
 	},
 };
 
-void __init ucb1400_gpio_set_data(struct ucb1400_gpio_data *data)
-{
-	ucbdata = data;
-}
-
 module_platform_driver(ucb1400_gpio_driver);
 
 MODULE_DESCRIPTION("Philips UCB1400 GPIO driver");
diff --git a/drivers/mfd/ucb1400_core.c b/drivers/mfd/ucb1400_core.c
index daf69527ed83..e9031fa9d53d 100644
--- a/drivers/mfd/ucb1400_core.c
+++ b/drivers/mfd/ucb1400_core.c
@@ -75,6 +75,11 @@ static int ucb1400_core_probe(struct device *dev)
 
 	/* GPIO */
 	ucb_gpio.ac97 = ac97;
+	if (pdata) {
+		ucb_gpio.gpio_setup = pdata->gpio_setup;
+		ucb_gpio.gpio_teardown = pdata->gpio_teardown;
+		ucb_gpio.gpio_offset = pdata->gpio_offset;
+	}
 	ucb->ucb1400_gpio = platform_device_alloc("ucb1400_gpio", -1);
 	if (!ucb->ucb1400_gpio) {
 		err = -ENOMEM;
diff --git a/include/linux/ucb1400.h b/include/linux/ucb1400.h
index d21b33c4c6ca..2e9ee4d1c676 100644
--- a/include/linux/ucb1400.h
+++ b/include/linux/ucb1400.h
@@ -83,15 +83,12 @@
 #define UCB_ID			0x7e
 #define UCB_ID_1400             0x4304
 
-struct ucb1400_gpio_data {
-	int gpio_offset;
-	int (*gpio_setup)(struct device *dev, int ngpio);
-	int (*gpio_teardown)(struct device *dev, int ngpio);
-};
-
 struct ucb1400_gpio {
 	struct gpio_chip	gc;
 	struct snd_ac97		*ac97;
+	int			gpio_offset;
+	int			(*gpio_setup)(struct device *dev, int ngpio);
+	int			(*gpio_teardown)(struct device *dev, int ngpio);
 };
 
 struct ucb1400_ts {
@@ -110,6 +107,9 @@ struct ucb1400 {
 
 struct ucb1400_pdata {
 	int	irq;
+	int	gpio_offset;
+	int	(*gpio_setup)(struct device *dev, int ngpio);
+	int	(*gpio_teardown)(struct device *dev, int ngpio);
 };
 
 static inline u16 ucb1400_reg_read(struct snd_ac97 *ac97, u16 reg)
@@ -162,10 +162,4 @@ static inline void ucb1400_adc_disable(struct snd_ac97 *ac97)
 unsigned int ucb1400_adc_read(struct snd_ac97 *ac97, u16 adc_channel,
 			      int adcsync);
 
-#ifdef CONFIG_GPIO_UCB1400
-void __init ucb1400_gpio_set_data(struct ucb1400_gpio_data *data);
-#else
-static inline void ucb1400_gpio_set_data(struct ucb1400_gpio_data *data) {}
-#endif
-
 #endif
-- 
cgit v1.2.3


From 95e50f6a2fe9ece6503e355400c171e0f5de61be Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Tue, 9 Apr 2013 22:51:25 +0300
Subject: mfd: retu: Add Tahvo support

Tahvo is a multi-function device on Nokia 770, implementing USB
transceiver and charge/battery control.

It's so close to Retu that a single driver can support both.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/Kconfig      |  6 ++--
 drivers/mfd/retu-mfd.c   | 85 ++++++++++++++++++++++++++++++++++++++++++------
 include/linux/mfd/retu.h |  8 ++++-
 3 files changed, 85 insertions(+), 14 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 2f3ce1836181..9de05020c660 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -371,13 +371,13 @@ config MFD_VIPERBOARD
 	  The drivers do not support all features the board exposes.
 
 config MFD_RETU
-	tristate "Nokia Retu multi-function device"
+	tristate "Nokia Retu and Tahvo multi-function device"
 	select MFD_CORE
 	depends on I2C && GENERIC_HARDIRQS
 	select REGMAP_IRQ
 	help
-	  Retu is a multi-function device found on Nokia Internet Tablets
-	  (770, N800 and N810).
+	  Retu and Tahvo are a multi-function devices found on Nokia
+	  Internet Tablets (770, N800 and N810).
 
 config MFD_PCF50633
 	tristate "NXP PCF50633"
diff --git a/drivers/mfd/retu-mfd.c b/drivers/mfd/retu-mfd.c
index 3ba048655bf3..a1830986eeb7 100644
--- a/drivers/mfd/retu-mfd.c
+++ b/drivers/mfd/retu-mfd.c
@@ -1,5 +1,5 @@
 /*
- * Retu MFD driver
+ * Retu/Tahvo MFD driver
  *
  * Copyright (C) 2004, 2005 Nokia Corporation
  *
@@ -33,7 +33,8 @@
 #define RETU_REG_ASICR		0x00		/* ASIC ID and revision */
 #define RETU_REG_ASICR_VILMA	(1 << 7)	/* Bit indicating Vilma */
 #define RETU_REG_IDR		0x01		/* Interrupt ID */
-#define RETU_REG_IMR		0x02		/* Interrupt mask */
+#define RETU_REG_IMR		0x02		/* Interrupt mask (Retu) */
+#define TAHVO_REG_IMR		0x03		/* Interrupt mask (Tahvo) */
 
 /* Interrupt sources */
 #define RETU_INT_PWR		0		/* Power button */
@@ -84,6 +85,62 @@ static struct regmap_irq_chip retu_irq_chip = {
 /* Retu device registered for the power off. */
 static struct retu_dev *retu_pm_power_off;
 
+static struct resource tahvo_usb_res[] = {
+	{
+		.name	= "tahvo-usb",
+		.start	= TAHVO_INT_VBUS,
+		.end	= TAHVO_INT_VBUS,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct mfd_cell tahvo_devs[] = {
+	{
+		.name		= "tahvo-usb",
+		.resources	= tahvo_usb_res,
+		.num_resources	= ARRAY_SIZE(tahvo_usb_res),
+	},
+};
+
+static struct regmap_irq tahvo_irqs[] = {
+	[TAHVO_INT_VBUS] = {
+		.mask = 1 << TAHVO_INT_VBUS,
+	}
+};
+
+static struct regmap_irq_chip tahvo_irq_chip = {
+	.name		= "TAHVO",
+	.irqs		= tahvo_irqs,
+	.num_irqs	= ARRAY_SIZE(tahvo_irqs),
+	.num_regs	= 1,
+	.status_base	= RETU_REG_IDR,
+	.mask_base	= TAHVO_REG_IMR,
+	.ack_base	= RETU_REG_IDR,
+};
+
+static const struct retu_data {
+	char			*chip_name;
+	char			*companion_name;
+	struct regmap_irq_chip	*irq_chip;
+	struct mfd_cell		*children;
+	int			nchildren;
+} retu_data[] = {
+	[0] = {
+		.chip_name	= "Retu",
+		.companion_name	= "Vilma",
+		.irq_chip	= &retu_irq_chip,
+		.children	= retu_devs,
+		.nchildren	= ARRAY_SIZE(retu_devs),
+	},
+	[1] = {
+		.chip_name	= "Tahvo",
+		.companion_name	= "Betty",
+		.irq_chip	= &tahvo_irq_chip,
+		.children	= tahvo_devs,
+		.nchildren	= ARRAY_SIZE(tahvo_devs),
+	}
+};
+
 int retu_read(struct retu_dev *rdev, u8 reg)
 {
 	int ret;
@@ -173,9 +230,14 @@ static struct regmap_config retu_config = {
 
 static int retu_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
 {
+	struct retu_data const *rdat;
 	struct retu_dev *rdev;
 	int ret;
 
+	if (i2c->addr > ARRAY_SIZE(retu_data))
+		return -ENODEV;
+	rdat = &retu_data[i2c->addr - 1];
+
 	rdev = devm_kzalloc(&i2c->dev, sizeof(*rdev), GFP_KERNEL);
 	if (rdev == NULL)
 		return -ENOMEM;
@@ -190,25 +252,27 @@ static int retu_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
 
 	ret = retu_read(rdev, RETU_REG_ASICR);
 	if (ret < 0) {
-		dev_err(rdev->dev, "could not read Retu revision: %d\n", ret);
+		dev_err(rdev->dev, "could not read %s revision: %d\n",
+			rdat->chip_name, ret);
 		return ret;
 	}
 
-	dev_info(rdev->dev, "Retu%s v%d.%d found\n",
-		 (ret & RETU_REG_ASICR_VILMA) ? " & Vilma" : "",
+	dev_info(rdev->dev, "%s%s%s v%d.%d found\n", rdat->chip_name,
+		 (ret & RETU_REG_ASICR_VILMA) ? " & " : "",
+		 (ret & RETU_REG_ASICR_VILMA) ? rdat->companion_name : "",
 		 (ret >> 4) & 0x7, ret & 0xf);
 
-	/* Mask all RETU interrupts. */
-	ret = retu_write(rdev, RETU_REG_IMR, 0xffff);
+	/* Mask all interrupts. */
+	ret = retu_write(rdev, rdat->irq_chip->mask_base, 0xffff);
 	if (ret < 0)
 		return ret;
 
 	ret = regmap_add_irq_chip(rdev->regmap, i2c->irq, IRQF_ONESHOT, -1,
-				  &retu_irq_chip, &rdev->irq_data);
+				  rdat->irq_chip, &rdev->irq_data);
 	if (ret < 0)
 		return ret;
 
-	ret = mfd_add_devices(rdev->dev, -1, retu_devs, ARRAY_SIZE(retu_devs),
+	ret = mfd_add_devices(rdev->dev, -1, rdat->children, rdat->nchildren,
 			      NULL, regmap_irq_chip_get_base(rdev->irq_data),
 			      NULL);
 	if (ret < 0) {
@@ -216,7 +280,7 @@ static int retu_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
 		return ret;
 	}
 
-	if (!pm_power_off) {
+	if (i2c->addr == 1 && !pm_power_off) {
 		retu_pm_power_off = rdev;
 		pm_power_off	  = retu_power_off;
 	}
@@ -240,6 +304,7 @@ static int retu_remove(struct i2c_client *i2c)
 
 static const struct i2c_device_id retu_id[] = {
 	{ "retu-mfd", 0 },
+	{ "tahvo-mfd", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, retu_id);
diff --git a/include/linux/mfd/retu.h b/include/linux/mfd/retu.h
index 1e2715d5b836..65471c4a3926 100644
--- a/include/linux/mfd/retu.h
+++ b/include/linux/mfd/retu.h
@@ -1,5 +1,5 @@
 /*
- * Retu MFD driver interface
+ * Retu/Tahvo MFD driver interface
  *
  * This file is subject to the terms and conditions of the GNU General
  * Public License. See the file "COPYING" in the main directory of this
@@ -19,4 +19,10 @@ int retu_write(struct retu_dev *, u8, u16);
 #define RETU_REG_CC1		0x0d		/* Common control register 1 */
 #define RETU_REG_STATUS		0x16		/* Status register */
 
+/* Interrupt sources */
+#define TAHVO_INT_VBUS		0		/* VBUS state */
+
+/* Interrupt status */
+#define TAHVO_STAT_VBUS		(1 << TAHVO_INT_VBUS)
+
 #endif /* __LINUX_MFD_RETU_H */
-- 
cgit v1.2.3


From 4c4b8c105a7bbd4a8d41ab4458f01174fdf3fcbb Mon Sep 17 00:00:00 2001
From: Wei WANG <wei_wang@realsil.com.cn>
Date: Thu, 11 Apr 2013 10:43:40 +0800
Subject: mfd: rtsx: Support RTS5249
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

RTS5249 supports SD UHS-II interface.

In order to support SD UHS-II，the definitions of some internal
registers of RTS5249 have to be modified and are different from its
predecessors. So we need this patch to ensure RTS5249 can work, even
SD/MMC stack doesn't support UHS-II interface.

Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/Makefile         |   2 +-
 drivers/mfd/rts5249.c        | 241 +++++++++++++++++++++++++++++++++++++++++++
 drivers/mfd/rtsx_pcr.c       |   5 +
 drivers/mfd/rtsx_pcr.h       |   1 +
 include/linux/mfd/rtsx_pci.h |  36 +++++++
 5 files changed, 284 insertions(+), 1 deletion(-)
 create mode 100644 drivers/mfd/rts5249.c

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index f62a583b5c85..067656651b02 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -12,7 +12,7 @@ obj-$(CONFIG_MFD_CROS_EC)	+= cros_ec.o
 obj-$(CONFIG_MFD_CROS_EC_I2C)	+= cros_ec_i2c.o
 obj-$(CONFIG_MFD_CROS_EC_SPI)	+= cros_ec_spi.o
 
-rtsx_pci-objs			:= rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o
+rtsx_pci-objs			:= rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o rts5249.o
 obj-$(CONFIG_MFD_RTSX_PCI)	+= rtsx_pci.o
 
 obj-$(CONFIG_HTC_EGPIO)		+= htc-egpio.o
diff --git a/drivers/mfd/rts5249.c b/drivers/mfd/rts5249.c
new file mode 100644
index 000000000000..15dc848bc081
--- /dev/null
+++ b/drivers/mfd/rts5249.c
@@ -0,0 +1,241 @@
+/* Driver for Realtek PCI-Express card reader
+ *
+ * Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author:
+ *   Wei WANG <wei_wang@realsil.com.cn>
+ *   No. 128, West Shenhu Road, Suzhou Industry Park, Suzhou, China
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/mfd/rtsx_pci.h>
+
+#include "rtsx_pcr.h"
+
+static u8 rts5249_get_ic_version(struct rtsx_pcr *pcr)
+{
+	u8 val;
+
+	rtsx_pci_read_register(pcr, DUMMY_REG_RESET_0, &val);
+	return val & 0x0F;
+}
+
+static int rts5249_extra_init_hw(struct rtsx_pcr *pcr)
+{
+	rtsx_pci_init_cmd(pcr);
+
+	/* Configure GPIO as output */
+	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, GPIO_CTL, 0x02, 0x02);
+	/* Switch LDO3318 source from DV33 to card_3v3 */
+	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x00);
+	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x01);
+	/* LED shine disabled, set initial shine cycle period */
+	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, OLT_LED_CTL, 0x0F, 0x02);
+	/* Correct driving */
+	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
+			SD30_CLK_DRIVE_SEL, 0xFF, 0x99);
+	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
+			SD30_CMD_DRIVE_SEL, 0xFF, 0x99);
+	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
+			SD30_DAT_DRIVE_SEL, 0xFF, 0x92);
+
+	return rtsx_pci_send_cmd(pcr, 100);
+}
+
+static int rts5249_optimize_phy(struct rtsx_pcr *pcr)
+{
+	int err;
+
+	err = rtsx_pci_write_phy_register(pcr, PHY_REG_REV, 0xFE46);
+	if (err < 0)
+		return err;
+
+	msleep(1);
+
+	return rtsx_pci_write_phy_register(pcr, PHY_BPCR, 0x05C0);
+}
+
+static int rts5249_turn_on_led(struct rtsx_pcr *pcr)
+{
+	return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x02);
+}
+
+static int rts5249_turn_off_led(struct rtsx_pcr *pcr)
+{
+	return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x00);
+}
+
+static int rts5249_enable_auto_blink(struct rtsx_pcr *pcr)
+{
+	return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x08);
+}
+
+static int rts5249_disable_auto_blink(struct rtsx_pcr *pcr)
+{
+	return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x00);
+}
+
+static int rts5249_card_power_on(struct rtsx_pcr *pcr, int card)
+{
+	int err;
+
+	rtsx_pci_init_cmd(pcr);
+	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
+			SD_POWER_MASK, SD_VCC_PARTIAL_POWER_ON);
+	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
+			LDO3318_PWR_MASK, 0x02);
+	err = rtsx_pci_send_cmd(pcr, 100);
+	if (err < 0)
+		return err;
+
+	msleep(5);
+
+	rtsx_pci_init_cmd(pcr);
+	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
+			SD_POWER_MASK, SD_VCC_POWER_ON);
+	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
+			LDO3318_PWR_MASK, 0x06);
+	err = rtsx_pci_send_cmd(pcr, 100);
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+
+static int rts5249_card_power_off(struct rtsx_pcr *pcr, int card)
+{
+	rtsx_pci_init_cmd(pcr);
+	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
+			SD_POWER_MASK, SD_POWER_OFF);
+	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
+			LDO3318_PWR_MASK, 0x00);
+	return rtsx_pci_send_cmd(pcr, 100);
+}
+
+static int rts5249_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
+{
+	int err;
+	u8 clk_drive, cmd_drive, dat_drive;
+
+	if (voltage == OUTPUT_3V3) {
+		err = rtsx_pci_write_phy_register(pcr, PHY_TUNE, 0x4FC0 | 0x24);
+		if (err < 0)
+			return err;
+		clk_drive = 0x99;
+		cmd_drive = 0x99;
+		dat_drive = 0x92;
+	} else if (voltage == OUTPUT_1V8) {
+		err = rtsx_pci_write_phy_register(pcr, PHY_BACR, 0x3C02);
+		if (err < 0)
+			return err;
+		err = rtsx_pci_write_phy_register(pcr, PHY_TUNE, 0x4C40 | 0x24);
+		if (err < 0)
+			return err;
+		clk_drive = 0xb3;
+		cmd_drive = 0xb3;
+		dat_drive = 0xb3;
+	} else {
+		return -EINVAL;
+	}
+
+	/* set pad drive */
+	rtsx_pci_init_cmd(pcr);
+	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CLK_DRIVE_SEL,
+			0xFF, clk_drive);
+	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CMD_DRIVE_SEL,
+			0xFF, cmd_drive);
+	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_DAT_DRIVE_SEL,
+			0xFF, dat_drive);
+	return rtsx_pci_send_cmd(pcr, 100);
+}
+
+static const struct pcr_ops rts5249_pcr_ops = {
+	.extra_init_hw = rts5249_extra_init_hw,
+	.optimize_phy = rts5249_optimize_phy,
+	.turn_on_led = rts5249_turn_on_led,
+	.turn_off_led = rts5249_turn_off_led,
+	.enable_auto_blink = rts5249_enable_auto_blink,
+	.disable_auto_blink = rts5249_disable_auto_blink,
+	.card_power_on = rts5249_card_power_on,
+	.card_power_off = rts5249_card_power_off,
+	.switch_output_voltage = rts5249_switch_output_voltage,
+};
+
+/* SD Pull Control Enable:
+ *     SD_DAT[3:0] ==> pull up
+ *     SD_CD       ==> pull up
+ *     SD_WP       ==> pull up
+ *     SD_CMD      ==> pull up
+ *     SD_CLK      ==> pull down
+ */
+static const u32 rts5249_sd_pull_ctl_enable_tbl[] = {
+	RTSX_REG_PAIR(CARD_PULL_CTL1, 0x66),
+	RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA),
+	RTSX_REG_PAIR(CARD_PULL_CTL3, 0xE9),
+	RTSX_REG_PAIR(CARD_PULL_CTL4, 0xAA),
+	0,
+};
+
+/* SD Pull Control Disable:
+ *     SD_DAT[3:0] ==> pull down
+ *     SD_CD       ==> pull up
+ *     SD_WP       ==> pull down
+ *     SD_CMD      ==> pull down
+ *     SD_CLK      ==> pull down
+ */
+static const u32 rts5249_sd_pull_ctl_disable_tbl[] = {
+	RTSX_REG_PAIR(CARD_PULL_CTL1, 0x66),
+	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
+	RTSX_REG_PAIR(CARD_PULL_CTL3, 0xD5),
+	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55),
+	0,
+};
+
+/* MS Pull Control Enable:
+ *     MS CD       ==> pull up
+ *     others      ==> pull down
+ */
+static const u32 rts5249_ms_pull_ctl_enable_tbl[] = {
+	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55),
+	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
+	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
+	0,
+};
+
+/* MS Pull Control Disable:
+ *     MS CD       ==> pull up
+ *     others      ==> pull down
+ */
+static const u32 rts5249_ms_pull_ctl_disable_tbl[] = {
+	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55),
+	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
+	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
+	0,
+};
+
+void rts5249_init_params(struct rtsx_pcr *pcr)
+{
+	pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104;
+	pcr->num_slots = 2;
+	pcr->ops = &rts5249_pcr_ops;
+
+	pcr->ic_version = rts5249_get_ic_version(pcr);
+	pcr->sd_pull_ctl_enable_tbl = rts5249_sd_pull_ctl_enable_tbl;
+	pcr->sd_pull_ctl_disable_tbl = rts5249_sd_pull_ctl_disable_tbl;
+	pcr->ms_pull_ctl_enable_tbl = rts5249_ms_pull_ctl_enable_tbl;
+	pcr->ms_pull_ctl_disable_tbl = rts5249_ms_pull_ctl_disable_tbl;
+}
diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c
index 578a1136b6dc..e968c01ca2ac 100644
--- a/drivers/mfd/rtsx_pcr.c
+++ b/drivers/mfd/rtsx_pcr.c
@@ -56,6 +56,7 @@ static DEFINE_PCI_DEVICE_TABLE(rtsx_pci_ids) = {
 	{ PCI_DEVICE(0x10EC, 0x5229), PCI_CLASS_OTHERS << 16, 0xFF0000 },
 	{ PCI_DEVICE(0x10EC, 0x5289), PCI_CLASS_OTHERS << 16, 0xFF0000 },
 	{ PCI_DEVICE(0x10EC, 0x5227), PCI_CLASS_OTHERS << 16, 0xFF0000 },
+	{ PCI_DEVICE(0x10EC, 0x5249), PCI_CLASS_OTHERS << 16, 0xFF0000 },
 	{ 0, }
 };
 
@@ -1033,6 +1034,10 @@ static int rtsx_pci_init_chip(struct rtsx_pcr *pcr)
 	case 0x5227:
 		rts5227_init_params(pcr);
 		break;
+
+	case 0x5249:
+		rts5249_init_params(pcr);
+		break;
 	}
 
 	dev_dbg(&(pcr->pci->dev), "PID: 0x%04x, IC version: 0x%02x\n",
diff --git a/drivers/mfd/rtsx_pcr.h b/drivers/mfd/rtsx_pcr.h
index 2b3ab8a04823..55fcfc25c4e4 100644
--- a/drivers/mfd/rtsx_pcr.h
+++ b/drivers/mfd/rtsx_pcr.h
@@ -32,5 +32,6 @@ void rts5209_init_params(struct rtsx_pcr *pcr);
 void rts5229_init_params(struct rtsx_pcr *pcr);
 void rtl8411_init_params(struct rtsx_pcr *pcr);
 void rts5227_init_params(struct rtsx_pcr *pcr);
+void rts5249_init_params(struct rtsx_pcr *pcr);
 
 #endif
diff --git a/include/linux/mfd/rtsx_pci.h b/include/linux/mfd/rtsx_pci.h
index 26ea7f1b7caf..86bc635f8385 100644
--- a/include/linux/mfd/rtsx_pci.h
+++ b/include/linux/mfd/rtsx_pci.h
@@ -500,6 +500,8 @@
 #define BPP_POWER_15_PERCENT_ON		0x08
 #define BPP_POWER_ON			0x00
 #define BPP_POWER_MASK			0x0F
+#define SD_VCC_PARTIAL_POWER_ON		0x02
+#define SD_VCC_POWER_ON			0x00
 
 /* PWR_GATE_CTRL */
 #define PWR_GATE_EN			0x01
@@ -689,6 +691,40 @@
 #define IMAGE_FLAG_ADDR0		0xCE80
 #define IMAGE_FLAG_ADDR1		0xCE81
 
+/* Phy register */
+#define PHY_PCR				0x00
+#define PHY_RCR0			0x01
+#define PHY_RCR1			0x02
+#define PHY_RCR2			0x03
+#define PHY_RTCR			0x04
+#define PHY_RDR				0x05
+#define PHY_TCR0			0x06
+#define PHY_TCR1			0x07
+#define PHY_TUNE			0x08
+#define PHY_IMR				0x09
+#define PHY_BPCR			0x0A
+#define PHY_BIST			0x0B
+#define PHY_RAW_L			0x0C
+#define PHY_RAW_H			0x0D
+#define PHY_RAW_DATA			0x0E
+#define PHY_HOST_CLK_CTRL		0x0F
+#define PHY_DMR				0x10
+#define PHY_BACR			0x11
+#define PHY_IER				0x12
+#define PHY_BCSR			0x13
+#define PHY_BPR				0x14
+#define PHY_BPNR2			0x15
+#define PHY_BPNR			0x16
+#define PHY_BRNR2			0x17
+#define PHY_BENR			0x18
+#define PHY_REG_REV			0x19
+#define PHY_FLD0			0x1A
+#define PHY_FLD1			0x1B
+#define PHY_FLD2			0x1C
+#define PHY_FLD3			0x1D
+#define PHY_FLD4			0x1E
+#define PHY_DUM_REG			0x1F
+
 #define rtsx_pci_init_cmd(pcr)		((pcr)->ci = 0)
 
 struct rtsx_pcr;
-- 
cgit v1.2.3


From ed4a8fe892ccbeb75a2ab380ef6ef5ef6d9d2636 Mon Sep 17 00:00:00 2001
From: Andrey Smirnov <andreysm@charmander.(none)>
Date: Thu, 18 Apr 2013 09:58:27 -0700
Subject: mfd: si476x: Add commands abstraction layer

This patch adds all the functions used for exchanging commands with
the chip.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/si476x-cmd.c | 1553 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 1553 insertions(+)
 create mode 100644 drivers/mfd/si476x-cmd.c

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/si476x-cmd.c b/drivers/mfd/si476x-cmd.c
new file mode 100644
index 000000000000..de48b4e88450
--- /dev/null
+++ b/drivers/mfd/si476x-cmd.c
@@ -0,0 +1,1553 @@
+/*
+ * drivers/mfd/si476x-cmd.c -- Subroutines implementing command
+ * protocol of si476x series of chips
+ *
+ * Copyright (C) 2012 Innovative Converged Devices(ICD)
+ * Copyright (C) 2013 Andrey Smirnov
+ *
+ * Author: Andrey Smirnov <andrew.smirnov@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/atomic.h>
+#include <linux/i2c.h>
+#include <linux/device.h>
+#include <linux/gpio.h>
+#include <linux/videodev2.h>
+
+#include <linux/mfd/si476x-core.h>
+
+#define msb(x)                  ((u8)((u16) x >> 8))
+#define lsb(x)                  ((u8)((u16) x &  0x00FF))
+
+
+
+#define CMD_POWER_UP				0x01
+#define CMD_POWER_UP_A10_NRESP			1
+#define CMD_POWER_UP_A10_NARGS			5
+
+#define CMD_POWER_UP_A20_NRESP			1
+#define CMD_POWER_UP_A20_NARGS			5
+
+#define POWER_UP_DELAY_MS			110
+
+#define CMD_POWER_DOWN				0x11
+#define CMD_POWER_DOWN_A10_NRESP		1
+
+#define CMD_POWER_DOWN_A20_NRESP		1
+#define CMD_POWER_DOWN_A20_NARGS		1
+
+#define CMD_FUNC_INFO				0x12
+#define CMD_FUNC_INFO_NRESP			7
+
+#define CMD_SET_PROPERTY			0x13
+#define CMD_SET_PROPERTY_NARGS			5
+#define CMD_SET_PROPERTY_NRESP			1
+
+#define CMD_GET_PROPERTY			0x14
+#define CMD_GET_PROPERTY_NARGS			3
+#define CMD_GET_PROPERTY_NRESP			4
+
+#define CMD_AGC_STATUS				0x17
+#define CMD_AGC_STATUS_NRESP_A10		2
+#define CMD_AGC_STATUS_NRESP_A20                6
+
+#define PIN_CFG_BYTE(x) (0x7F & (x))
+#define CMD_DIG_AUDIO_PIN_CFG			0x18
+#define CMD_DIG_AUDIO_PIN_CFG_NARGS		4
+#define CMD_DIG_AUDIO_PIN_CFG_NRESP		5
+
+#define CMD_ZIF_PIN_CFG				0x19
+#define CMD_ZIF_PIN_CFG_NARGS			4
+#define CMD_ZIF_PIN_CFG_NRESP			5
+
+#define CMD_IC_LINK_GPO_CTL_PIN_CFG		0x1A
+#define CMD_IC_LINK_GPO_CTL_PIN_CFG_NARGS	4
+#define CMD_IC_LINK_GPO_CTL_PIN_CFG_NRESP	5
+
+#define CMD_ANA_AUDIO_PIN_CFG			0x1B
+#define CMD_ANA_AUDIO_PIN_CFG_NARGS		1
+#define CMD_ANA_AUDIO_PIN_CFG_NRESP		2
+
+#define CMD_INTB_PIN_CFG			0x1C
+#define CMD_INTB_PIN_CFG_NARGS			2
+#define CMD_INTB_PIN_CFG_A10_NRESP		6
+#define CMD_INTB_PIN_CFG_A20_NRESP		3
+
+#define CMD_FM_TUNE_FREQ			0x30
+#define CMD_FM_TUNE_FREQ_A10_NARGS		5
+#define CMD_FM_TUNE_FREQ_A20_NARGS		3
+#define CMD_FM_TUNE_FREQ_NRESP			1
+
+#define CMD_FM_RSQ_STATUS			0x32
+
+#define CMD_FM_RSQ_STATUS_A10_NARGS		1
+#define CMD_FM_RSQ_STATUS_A10_NRESP		17
+#define CMD_FM_RSQ_STATUS_A30_NARGS		1
+#define CMD_FM_RSQ_STATUS_A30_NRESP		23
+
+
+#define CMD_FM_SEEK_START			0x31
+#define CMD_FM_SEEK_START_NARGS			1
+#define CMD_FM_SEEK_START_NRESP			1
+
+#define CMD_FM_RDS_STATUS			0x36
+#define CMD_FM_RDS_STATUS_NARGS			1
+#define CMD_FM_RDS_STATUS_NRESP			16
+
+#define CMD_FM_RDS_BLOCKCOUNT			0x37
+#define CMD_FM_RDS_BLOCKCOUNT_NARGS		1
+#define CMD_FM_RDS_BLOCKCOUNT_NRESP		8
+
+#define CMD_FM_PHASE_DIVERSITY			0x38
+#define CMD_FM_PHASE_DIVERSITY_NARGS		1
+#define CMD_FM_PHASE_DIVERSITY_NRESP		1
+
+#define CMD_FM_PHASE_DIV_STATUS			0x39
+#define CMD_FM_PHASE_DIV_STATUS_NRESP		2
+
+#define CMD_AM_TUNE_FREQ			0x40
+#define CMD_AM_TUNE_FREQ_NARGS			3
+#define CMD_AM_TUNE_FREQ_NRESP			1
+
+#define CMD_AM_RSQ_STATUS			0x42
+#define CMD_AM_RSQ_STATUS_NARGS			1
+#define CMD_AM_RSQ_STATUS_NRESP			13
+
+#define CMD_AM_SEEK_START			0x41
+#define CMD_AM_SEEK_START_NARGS			1
+#define CMD_AM_SEEK_START_NRESP			1
+
+
+#define CMD_AM_ACF_STATUS			0x45
+#define CMD_AM_ACF_STATUS_NRESP			6
+#define CMD_AM_ACF_STATUS_NARGS			1
+
+#define CMD_FM_ACF_STATUS			0x35
+#define CMD_FM_ACF_STATUS_NRESP			8
+#define CMD_FM_ACF_STATUS_NARGS			1
+
+#define CMD_MAX_ARGS_COUNT			(10)
+
+
+enum si476x_acf_status_report_bits {
+	SI476X_ACF_BLEND_INT	= (1 << 4),
+	SI476X_ACF_HIBLEND_INT	= (1 << 3),
+	SI476X_ACF_HICUT_INT	= (1 << 2),
+	SI476X_ACF_CHBW_INT	= (1 << 1),
+	SI476X_ACF_SOFTMUTE_INT	= (1 << 0),
+
+	SI476X_ACF_SMUTE	= (1 << 0),
+	SI476X_ACF_SMATTN	= 0b11111,
+	SI476X_ACF_PILOT	= (1 << 7),
+	SI476X_ACF_STBLEND	= ~SI476X_ACF_PILOT,
+};
+
+enum si476x_agc_status_report_bits {
+	SI476X_AGC_MXHI		= (1 << 5),
+	SI476X_AGC_MXLO		= (1 << 4),
+	SI476X_AGC_LNAHI	= (1 << 3),
+	SI476X_AGC_LNALO	= (1 << 2),
+};
+
+enum si476x_errors {
+	SI476X_ERR_BAD_COMMAND		= 0x10,
+	SI476X_ERR_BAD_ARG1		= 0x11,
+	SI476X_ERR_BAD_ARG2		= 0x12,
+	SI476X_ERR_BAD_ARG3		= 0x13,
+	SI476X_ERR_BAD_ARG4		= 0x14,
+	SI476X_ERR_BUSY			= 0x18,
+	SI476X_ERR_BAD_INTERNAL_MEMORY  = 0x20,
+	SI476X_ERR_BAD_PATCH		= 0x30,
+	SI476X_ERR_BAD_BOOT_MODE	= 0x31,
+	SI476X_ERR_BAD_PROPERTY		= 0x40,
+};
+
+static int si476x_core_parse_and_nag_about_error(struct si476x_core *core)
+{
+	int err;
+	char *cause;
+	u8 buffer[2];
+
+	if (core->revision != SI476X_REVISION_A10) {
+		err = si476x_core_i2c_xfer(core, SI476X_I2C_RECV,
+					   buffer, sizeof(buffer));
+		if (err == sizeof(buffer)) {
+			switch (buffer[1]) {
+			case SI476X_ERR_BAD_COMMAND:
+				cause = "Bad command";
+				err = -EINVAL;
+				break;
+			case SI476X_ERR_BAD_ARG1:
+				cause = "Bad argument #1";
+				err = -EINVAL;
+				break;
+			case SI476X_ERR_BAD_ARG2:
+				cause = "Bad argument #2";
+				err = -EINVAL;
+				break;
+			case SI476X_ERR_BAD_ARG3:
+				cause = "Bad argument #3";
+				err = -EINVAL;
+				break;
+			case SI476X_ERR_BAD_ARG4:
+				cause = "Bad argument #4";
+				err = -EINVAL;
+				break;
+			case SI476X_ERR_BUSY:
+				cause = "Chip is busy";
+				err = -EBUSY;
+				break;
+			case SI476X_ERR_BAD_INTERNAL_MEMORY:
+				cause = "Bad internal memory";
+				err = -EIO;
+				break;
+			case SI476X_ERR_BAD_PATCH:
+				cause = "Bad patch";
+				err = -EINVAL;
+				break;
+			case SI476X_ERR_BAD_BOOT_MODE:
+				cause = "Bad boot mode";
+				err = -EINVAL;
+				break;
+			case SI476X_ERR_BAD_PROPERTY:
+				cause = "Bad property";
+				err = -EINVAL;
+				break;
+			default:
+				cause = "Unknown";
+				err = -EIO;
+			}
+
+			dev_err(&core->client->dev,
+				"[Chip error status]: %s\n", cause);
+		} else {
+			dev_err(&core->client->dev,
+				"Failed to fetch error code\n");
+			err = (err >= 0) ? -EIO : err;
+		}
+	} else {
+		err = -EIO;
+	}
+
+	return err;
+}
+
+/**
+ * si476x_core_send_command() - sends a command to si476x and waits its
+ * response
+ * @core:    si476x_device structure for the device we are
+ *            communicating with
+ * @command:  command id
+ * @args:     command arguments we are sending
+ * @argn:     actual size of @args
+ * @response: buffer to place the expected response from the device
+ * @respn:    actual size of @response
+ * @usecs:    amount of time to wait before reading the response (in
+ *            usecs)
+ *
+ * Function returns 0 on succsess and negative error code on
+ * failure
+ */
+static int si476x_core_send_command(struct si476x_core *core,
+				    const u8 command,
+				    const u8 args[],
+				    const int argn,
+				    u8 resp[],
+				    const int respn,
+				    const int usecs)
+{
+	struct i2c_client *client = core->client;
+	int err;
+	u8  data[CMD_MAX_ARGS_COUNT + 1];
+
+	if (argn > CMD_MAX_ARGS_COUNT) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	if (!client->adapter) {
+		err = -ENODEV;
+		goto exit;
+	}
+
+	/* First send the command and its arguments */
+	data[0] = command;
+	memcpy(&data[1], args, argn);
+	dev_dbg(&client->dev, "Command:\n %*ph\n", argn + 1, data);
+
+	err = si476x_core_i2c_xfer(core, SI476X_I2C_SEND,
+				   (char *) data, argn + 1);
+	if (err != argn + 1) {
+		dev_err(&core->client->dev,
+			"Error while sending command 0x%02x\n",
+			command);
+		err = (err >= 0) ? -EIO : err;
+		goto exit;
+	}
+	/* Set CTS to zero only after the command is send to avoid
+	 * possible racing conditions when working in polling mode */
+	atomic_set(&core->cts, 0);
+
+	/* if (unlikely(command == CMD_POWER_DOWN) */
+	if (!wait_event_timeout(core->command,
+				atomic_read(&core->cts),
+				usecs_to_jiffies(usecs) + 1))
+		dev_warn(&core->client->dev,
+			 "(%s) [CMD 0x%02x] Answer timeout.\n",
+			 __func__, command);
+
+	/*
+	  When working in polling mode, for some reason the tuner will
+	  report CTS bit as being set in the first status byte read,
+	  but all the consequtive ones will return zeros until the
+	  tuner is actually completed the POWER_UP command. To
+	  workaround that we wait for second CTS to be reported
+	 */
+	if (unlikely(!core->client->irq && command == CMD_POWER_UP)) {
+		if (!wait_event_timeout(core->command,
+					atomic_read(&core->cts),
+					usecs_to_jiffies(usecs) + 1))
+			dev_warn(&core->client->dev,
+				 "(%s) Power up took too much time.\n",
+				 __func__);
+	}
+
+	/* Then get the response */
+	err = si476x_core_i2c_xfer(core, SI476X_I2C_RECV, resp, respn);
+	if (err != respn) {
+		dev_err(&core->client->dev,
+			"Error while reading response for command 0x%02x\n",
+			command);
+		err = (err >= 0) ? -EIO : err;
+		goto exit;
+	}
+	dev_dbg(&client->dev, "Response:\n %*ph\n", respn, resp);
+
+	err = 0;
+
+	if (resp[0] & SI476X_ERR) {
+		dev_err(&core->client->dev,
+			"[CMD 0x%02x] Chip set error flag\n", command);
+		err = si476x_core_parse_and_nag_about_error(core);
+		goto exit;
+	}
+
+	if (!(resp[0] & SI476X_CTS))
+		err = -EBUSY;
+exit:
+	return err;
+}
+
+static int si476x_cmd_clear_stc(struct si476x_core *core)
+{
+	int err;
+	struct si476x_rsq_status_args args = {
+		.primary	= false,
+		.rsqack		= false,
+		.attune		= false,
+		.cancel		= false,
+		.stcack		= true,
+	};
+
+	switch (core->power_up_parameters.func) {
+	case SI476X_FUNC_FM_RECEIVER:
+		err = si476x_core_cmd_fm_rsq_status(core, &args, NULL);
+		break;
+	case SI476X_FUNC_AM_RECEIVER:
+		err = si476x_core_cmd_am_rsq_status(core, &args, NULL);
+		break;
+	default:
+		err = -EINVAL;
+	}
+
+	return err;
+}
+
+static int si476x_cmd_tune_seek_freq(struct si476x_core *core,
+				     uint8_t cmd,
+				     const uint8_t args[], size_t argn,
+				     uint8_t *resp, size_t respn)
+{
+	int err;
+
+
+	atomic_set(&core->stc, 0);
+	err = si476x_core_send_command(core, cmd, args, argn, resp, respn,
+				       SI476X_TIMEOUT_TUNE);
+	if (!err) {
+		wait_event_killable(core->tuning,
+				    atomic_read(&core->stc));
+		si476x_cmd_clear_stc(core);
+	}
+
+	return err;
+}
+
+/**
+ * si476x_cmd_func_info() - send 'FUNC_INFO' command to the device
+ * @core: device to send the command to
+ * @info:  struct si476x_func_info to fill all the information
+ *         returned by the command
+ *
+ * The command requests the firmware and patch version for currently
+ * loaded firmware (dependent on the function of the device FM/AM/WB)
+ *
+ * Function returns 0 on succsess and negative error code on
+ * failure
+ */
+int si476x_core_cmd_func_info(struct si476x_core *core,
+			      struct si476x_func_info *info)
+{
+	int err;
+	u8  resp[CMD_FUNC_INFO_NRESP];
+
+	err = si476x_core_send_command(core, CMD_FUNC_INFO,
+				       NULL, 0,
+				       resp, ARRAY_SIZE(resp),
+				       SI476X_DEFAULT_TIMEOUT);
+
+	info->firmware.major    = resp[1];
+	info->firmware.minor[0] = resp[2];
+	info->firmware.minor[1] = resp[3];
+
+	info->patch_id = ((u16) resp[4] << 8) | resp[5];
+	info->func     = resp[6];
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_func_info);
+
+/**
+ * si476x_cmd_set_property() - send 'SET_PROPERTY' command to the device
+ * @core:    device to send the command to
+ * @property: property address
+ * @value:    property value
+ *
+ * Function returns 0 on succsess and negative error code on
+ * failure
+ */
+int si476x_core_cmd_set_property(struct si476x_core *core,
+				 u16 property, u16 value)
+{
+	u8       resp[CMD_SET_PROPERTY_NRESP];
+	const u8 args[CMD_SET_PROPERTY_NARGS] = {
+		0x00,
+		msb(property),
+		lsb(property),
+		msb(value),
+		lsb(value),
+	};
+
+	return si476x_core_send_command(core, CMD_SET_PROPERTY,
+					args, ARRAY_SIZE(args),
+					resp, ARRAY_SIZE(resp),
+					SI476X_DEFAULT_TIMEOUT);
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_set_property);
+
+/**
+ * si476x_cmd_get_property() - send 'GET_PROPERTY' command to the device
+ * @core:    device to send the command to
+ * @property: property address
+ *
+ * Function return the value of property as u16 on success or a
+ * negative error on failure
+ */
+int si476x_core_cmd_get_property(struct si476x_core *core, u16 property)
+{
+	int err;
+	u8       resp[CMD_GET_PROPERTY_NRESP];
+	const u8 args[CMD_GET_PROPERTY_NARGS] = {
+		0x00,
+		msb(property),
+		lsb(property),
+	};
+
+	err = si476x_core_send_command(core, CMD_GET_PROPERTY,
+				       args, ARRAY_SIZE(args),
+				       resp, ARRAY_SIZE(resp),
+				       SI476X_DEFAULT_TIMEOUT);
+	if (err < 0)
+		return err;
+	else
+		return be16_to_cpup((__be16 *)(resp + 2));
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_get_property);
+
+/**
+ * si476x_cmd_dig_audio_pin_cfg() - send 'DIG_AUDIO_PIN_CFG' command to
+ * the device
+ * @core: device to send the command to
+ * @dclk:  DCLK pin function configuration:
+ *	   #SI476X_DCLK_NOOP     - do not modify the behaviour
+ *         #SI476X_DCLK_TRISTATE - put the pin in tristate condition,
+ *                                 enable 1MOhm pulldown
+ *         #SI476X_DCLK_DAUDIO   - set the pin to be a part of digital
+ *                                 audio interface
+ * @dfs:   DFS pin function configuration:
+ *         #SI476X_DFS_NOOP      - do not modify the behaviour
+ *         #SI476X_DFS_TRISTATE  - put the pin in tristate condition,
+ *                             enable 1MOhm pulldown
+ *      SI476X_DFS_DAUDIO    - set the pin to be a part of digital
+ *                             audio interface
+ * @dout - DOUT pin function configuration:
+ *      SI476X_DOUT_NOOP       - do not modify the behaviour
+ *      SI476X_DOUT_TRISTATE   - put the pin in tristate condition,
+ *                               enable 1MOhm pulldown
+ *      SI476X_DOUT_I2S_OUTPUT - set this pin to be digital out on I2S
+ *                               port 1
+ *      SI476X_DOUT_I2S_INPUT  - set this pin to be digital in on I2S
+ *                               port 1
+ * @xout - XOUT pin function configuration:
+ *	SI476X_XOUT_NOOP        - do not modify the behaviour
+ *      SI476X_XOUT_TRISTATE    - put the pin in tristate condition,
+ *                                enable 1MOhm pulldown
+ *      SI476X_XOUT_I2S_INPUT   - set this pin to be digital in on I2S
+ *                                port 1
+ *      SI476X_XOUT_MODE_SELECT - set this pin to be the input that
+ *                                selects the mode of the I2S audio
+ *                                combiner (analog or HD)
+ *                                [SI4761/63/65/67 Only]
+ *
+ * Function returns 0 on success and negative error code on failure
+ */
+int si476x_core_cmd_dig_audio_pin_cfg(struct  si476x_core *core,
+				      enum si476x_dclk_config dclk,
+				      enum si476x_dfs_config  dfs,
+				      enum si476x_dout_config dout,
+				      enum si476x_xout_config xout)
+{
+	u8       resp[CMD_DIG_AUDIO_PIN_CFG_NRESP];
+	const u8 args[CMD_DIG_AUDIO_PIN_CFG_NARGS] = {
+		PIN_CFG_BYTE(dclk),
+		PIN_CFG_BYTE(dfs),
+		PIN_CFG_BYTE(dout),
+		PIN_CFG_BYTE(xout),
+	};
+
+	return si476x_core_send_command(core, CMD_DIG_AUDIO_PIN_CFG,
+					args, ARRAY_SIZE(args),
+					resp, ARRAY_SIZE(resp),
+					SI476X_DEFAULT_TIMEOUT);
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_dig_audio_pin_cfg);
+
+/**
+ * si476x_cmd_zif_pin_cfg - send 'ZIF_PIN_CFG_COMMAND'
+ * @core - device to send the command to
+ * @iqclk - IQCL pin function configuration:
+ *       SI476X_IQCLK_NOOP     - do not modify the behaviour
+ *       SI476X_IQCLK_TRISTATE - put the pin in tristate condition,
+ *                               enable 1MOhm pulldown
+ *       SI476X_IQCLK_IQ       - set pin to be a part of I/Q interace
+ *                               in master mode
+ * @iqfs - IQFS pin function configuration:
+ *       SI476X_IQFS_NOOP     - do not modify the behaviour
+ *       SI476X_IQFS_TRISTATE - put the pin in tristate condition,
+ *                              enable 1MOhm pulldown
+ *       SI476X_IQFS_IQ       - set pin to be a part of I/Q interace
+ *                              in master mode
+ * @iout - IOUT pin function configuration:
+ *       SI476X_IOUT_NOOP     - do not modify the behaviour
+ *       SI476X_IOUT_TRISTATE - put the pin in tristate condition,
+ *                              enable 1MOhm pulldown
+ *       SI476X_IOUT_OUTPUT   - set pin to be I out
+ * @qout - QOUT pin function configuration:
+ *       SI476X_QOUT_NOOP     - do not modify the behaviour
+ *       SI476X_QOUT_TRISTATE - put the pin in tristate condition,
+ *                              enable 1MOhm pulldown
+ *       SI476X_QOUT_OUTPUT   - set pin to be Q out
+ *
+ * Function returns 0 on success and negative error code on failure
+ */
+int si476x_core_cmd_zif_pin_cfg(struct si476x_core *core,
+				enum si476x_iqclk_config iqclk,
+				enum si476x_iqfs_config iqfs,
+				enum si476x_iout_config iout,
+				enum si476x_qout_config qout)
+{
+	u8       resp[CMD_ZIF_PIN_CFG_NRESP];
+	const u8 args[CMD_ZIF_PIN_CFG_NARGS] = {
+		PIN_CFG_BYTE(iqclk),
+		PIN_CFG_BYTE(iqfs),
+		PIN_CFG_BYTE(iout),
+		PIN_CFG_BYTE(qout),
+	};
+
+	return si476x_core_send_command(core, CMD_ZIF_PIN_CFG,
+					args, ARRAY_SIZE(args),
+					resp, ARRAY_SIZE(resp),
+					SI476X_DEFAULT_TIMEOUT);
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_zif_pin_cfg);
+
+/**
+ * si476x_cmd_ic_link_gpo_ctl_pin_cfg - send
+ * 'IC_LINK_GPIO_CTL_PIN_CFG' comand to the device
+ * @core - device to send the command to
+ * @icin - ICIN pin function configuration:
+ *      SI476X_ICIN_NOOP      - do not modify the behaviour
+ *      SI476X_ICIN_TRISTATE  - put the pin in tristate condition,
+ *                              enable 1MOhm pulldown
+ *      SI476X_ICIN_GPO1_HIGH - set pin to be an output, drive it high
+ *      SI476X_ICIN_GPO1_LOW  - set pin to be an output, drive it low
+ *      SI476X_ICIN_IC_LINK   - set the pin to be a part of Inter-Chip link
+ * @icip - ICIP pin function configuration:
+ *      SI476X_ICIP_NOOP      - do not modify the behaviour
+ *      SI476X_ICIP_TRISTATE  - put the pin in tristate condition,
+ *                              enable 1MOhm pulldown
+ *      SI476X_ICIP_GPO1_HIGH - set pin to be an output, drive it high
+ *      SI476X_ICIP_GPO1_LOW  - set pin to be an output, drive it low
+ *      SI476X_ICIP_IC_LINK   - set the pin to be a part of Inter-Chip link
+ * @icon - ICON pin function configuration:
+ *      SI476X_ICON_NOOP     - do not modify the behaviour
+ *      SI476X_ICON_TRISTATE - put the pin in tristate condition,
+ *                             enable 1MOhm pulldown
+ *      SI476X_ICON_I2S      - set the pin to be a part of audio
+ *                             interface in slave mode (DCLK)
+ *      SI476X_ICON_IC_LINK  - set the pin to be a part of Inter-Chip link
+ * @icop - ICOP pin function configuration:
+ *      SI476X_ICOP_NOOP     - do not modify the behaviour
+ *      SI476X_ICOP_TRISTATE - put the pin in tristate condition,
+ *                             enable 1MOhm pulldown
+ *      SI476X_ICOP_I2S      - set the pin to be a part of audio
+ *                             interface in slave mode (DOUT)
+ *                             [Si4761/63/65/67 Only]
+ *      SI476X_ICOP_IC_LINK  - set the pin to be a part of Inter-Chip link
+ *
+ * Function returns 0 on success and negative error code on failure
+ */
+int si476x_core_cmd_ic_link_gpo_ctl_pin_cfg(struct si476x_core *core,
+					    enum si476x_icin_config icin,
+					    enum si476x_icip_config icip,
+					    enum si476x_icon_config icon,
+					    enum si476x_icop_config icop)
+{
+	u8       resp[CMD_IC_LINK_GPO_CTL_PIN_CFG_NRESP];
+	const u8 args[CMD_IC_LINK_GPO_CTL_PIN_CFG_NARGS] = {
+		PIN_CFG_BYTE(icin),
+		PIN_CFG_BYTE(icip),
+		PIN_CFG_BYTE(icon),
+		PIN_CFG_BYTE(icop),
+	};
+
+	return si476x_core_send_command(core, CMD_IC_LINK_GPO_CTL_PIN_CFG,
+					args, ARRAY_SIZE(args),
+					resp, ARRAY_SIZE(resp),
+					SI476X_DEFAULT_TIMEOUT);
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_ic_link_gpo_ctl_pin_cfg);
+
+/**
+ * si476x_cmd_ana_audio_pin_cfg - send 'ANA_AUDIO_PIN_CFG' to the
+ * device
+ * @core - device to send the command to
+ * @lrout - LROUT pin function configuration:
+ *       SI476X_LROUT_NOOP     - do not modify the behaviour
+ *       SI476X_LROUT_TRISTATE - put the pin in tristate condition,
+ *                               enable 1MOhm pulldown
+ *       SI476X_LROUT_AUDIO    - set pin to be audio output
+ *       SI476X_LROUT_MPX      - set pin to be MPX output
+ *
+ * Function returns 0 on success and negative error code on failure
+ */
+int si476x_core_cmd_ana_audio_pin_cfg(struct si476x_core *core,
+				      enum si476x_lrout_config lrout)
+{
+	u8       resp[CMD_ANA_AUDIO_PIN_CFG_NRESP];
+	const u8 args[CMD_ANA_AUDIO_PIN_CFG_NARGS] = {
+		PIN_CFG_BYTE(lrout),
+	};
+
+	return si476x_core_send_command(core, CMD_ANA_AUDIO_PIN_CFG,
+					args, ARRAY_SIZE(args),
+					resp, ARRAY_SIZE(resp),
+					SI476X_DEFAULT_TIMEOUT);
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_ana_audio_pin_cfg);
+
+
+/**
+ * si476x_cmd_intb_pin_cfg - send 'INTB_PIN_CFG' command to the device
+ * @core - device to send the command to
+ * @intb - INTB pin function configuration:
+ *      SI476X_INTB_NOOP     - do not modify the behaviour
+ *      SI476X_INTB_TRISTATE - put the pin in tristate condition,
+ *                             enable 1MOhm pulldown
+ *      SI476X_INTB_DAUDIO   - set pin to be a part of digital
+ *                             audio interface in slave mode
+ *      SI476X_INTB_IRQ      - set pin to be an interrupt request line
+ * @a1 - A1 pin function configuration:
+ *      SI476X_A1_NOOP     - do not modify the behaviour
+ *      SI476X_A1_TRISTATE - put the pin in tristate condition,
+ *                           enable 1MOhm pulldown
+ *      SI476X_A1_IRQ      - set pin to be an interrupt request line
+ *
+ * Function returns 0 on success and negative error code on failure
+ */
+static int si476x_core_cmd_intb_pin_cfg_a10(struct si476x_core *core,
+					    enum si476x_intb_config intb,
+					    enum si476x_a1_config a1)
+{
+	u8       resp[CMD_INTB_PIN_CFG_A10_NRESP];
+	const u8 args[CMD_INTB_PIN_CFG_NARGS] = {
+		PIN_CFG_BYTE(intb),
+		PIN_CFG_BYTE(a1),
+	};
+
+	return si476x_core_send_command(core, CMD_INTB_PIN_CFG,
+					args, ARRAY_SIZE(args),
+					resp, ARRAY_SIZE(resp),
+					SI476X_DEFAULT_TIMEOUT);
+}
+
+static int si476x_core_cmd_intb_pin_cfg_a20(struct si476x_core *core,
+					    enum si476x_intb_config intb,
+					    enum si476x_a1_config a1)
+{
+	u8       resp[CMD_INTB_PIN_CFG_A20_NRESP];
+	const u8 args[CMD_INTB_PIN_CFG_NARGS] = {
+		PIN_CFG_BYTE(intb),
+		PIN_CFG_BYTE(a1),
+	};
+
+	return si476x_core_send_command(core, CMD_INTB_PIN_CFG,
+					args, ARRAY_SIZE(args),
+					resp, ARRAY_SIZE(resp),
+					SI476X_DEFAULT_TIMEOUT);
+}
+
+
+
+/**
+ * si476x_cmd_am_rsq_status - send 'AM_RSQ_STATUS' command to the
+ * device
+ * @core  - device to send the command to
+ * @rsqack - if set command clears RSQINT, SNRINT, SNRLINT, RSSIHINT,
+ *           RSSSILINT, BLENDINT, MULTHINT and MULTLINT
+ * @attune - when set the values in the status report are the values
+ *           that were calculated at tune
+ * @cancel - abort ongoing seek/tune opertation
+ * @stcack - clear the STCINT bin in status register
+ * @report - all signal quality information retured by the command
+ *           (if NULL then the output of the command is ignored)
+ *
+ * Function returns 0 on success and negative error code on failure
+ */
+int si476x_core_cmd_am_rsq_status(struct si476x_core *core,
+				  struct si476x_rsq_status_args *rsqargs,
+				  struct si476x_rsq_status_report *report)
+{
+	int err;
+	u8       resp[CMD_AM_RSQ_STATUS_NRESP];
+	const u8 args[CMD_AM_RSQ_STATUS_NARGS] = {
+		rsqargs->rsqack << 3 | rsqargs->attune << 2 |
+		rsqargs->cancel << 1 | rsqargs->stcack,
+	};
+
+	err = si476x_core_send_command(core, CMD_AM_RSQ_STATUS,
+				       args, ARRAY_SIZE(args),
+				       resp, ARRAY_SIZE(resp),
+				       SI476X_DEFAULT_TIMEOUT);
+	/*
+	 * Besides getting received signal quality information this
+	 * command can be used to just acknowledge different interrupt
+	 * flags in those cases it is useless to copy and parse
+	 * received data so user can pass NULL, and thus avoid
+	 * unnecessary copying.
+	 */
+	if (!report)
+		return err;
+
+	report->snrhint		= 0b00001000 & resp[1];
+	report->snrlint		= 0b00000100 & resp[1];
+	report->rssihint	= 0b00000010 & resp[1];
+	report->rssilint	= 0b00000001 & resp[1];
+
+	report->bltf		= 0b10000000 & resp[2];
+	report->snr_ready	= 0b00100000 & resp[2];
+	report->rssiready	= 0b00001000 & resp[2];
+	report->afcrl		= 0b00000010 & resp[2];
+	report->valid		= 0b00000001 & resp[2];
+
+	report->readfreq	= be16_to_cpup((__be16 *)(resp + 3));
+	report->freqoff		= resp[5];
+	report->rssi		= resp[6];
+	report->snr		= resp[7];
+	report->lassi		= resp[9];
+	report->hassi		= resp[10];
+	report->mult		= resp[11];
+	report->dev		= resp[12];
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_am_rsq_status);
+
+int si476x_core_cmd_fm_acf_status(struct si476x_core *core,
+			     struct si476x_acf_status_report *report)
+{
+	int err;
+	u8       resp[CMD_FM_ACF_STATUS_NRESP];
+	const u8 args[CMD_FM_ACF_STATUS_NARGS] = {
+		0x0,
+	};
+
+	if (!report)
+		return -EINVAL;
+
+	err = si476x_core_send_command(core, CMD_FM_ACF_STATUS,
+				       args, ARRAY_SIZE(args),
+				       resp, ARRAY_SIZE(resp),
+				       SI476X_DEFAULT_TIMEOUT);
+	if (err < 0)
+		return err;
+
+	report->blend_int	= resp[1] & SI476X_ACF_BLEND_INT;
+	report->hblend_int	= resp[1] & SI476X_ACF_HIBLEND_INT;
+	report->hicut_int	= resp[1] & SI476X_ACF_HICUT_INT;
+	report->chbw_int	= resp[1] & SI476X_ACF_CHBW_INT;
+	report->softmute_int	= resp[1] & SI476X_ACF_SOFTMUTE_INT;
+	report->smute		= resp[2] & SI476X_ACF_SMUTE;
+	report->smattn		= resp[3] & SI476X_ACF_SMATTN;
+	report->chbw		= resp[4];
+	report->hicut		= resp[5];
+	report->hiblend		= resp[6];
+	report->pilot		= resp[7] & SI476X_ACF_PILOT;
+	report->stblend		= resp[7] & SI476X_ACF_STBLEND;
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_acf_status);
+
+int si476x_core_cmd_am_acf_status(struct si476x_core *core,
+				  struct si476x_acf_status_report *report)
+{
+	int err;
+	u8       resp[CMD_AM_ACF_STATUS_NRESP];
+	const u8 args[CMD_AM_ACF_STATUS_NARGS] = {
+		0x0,
+	};
+
+	if (!report)
+		return -EINVAL;
+
+	err = si476x_core_send_command(core, CMD_AM_ACF_STATUS,
+				       args, ARRAY_SIZE(args),
+				       resp, ARRAY_SIZE(resp),
+				       SI476X_DEFAULT_TIMEOUT);
+	if (err < 0)
+		return err;
+
+	report->blend_int	= resp[1] & SI476X_ACF_BLEND_INT;
+	report->hblend_int	= resp[1] & SI476X_ACF_HIBLEND_INT;
+	report->hicut_int	= resp[1] & SI476X_ACF_HICUT_INT;
+	report->chbw_int	= resp[1] & SI476X_ACF_CHBW_INT;
+	report->softmute_int	= resp[1] & SI476X_ACF_SOFTMUTE_INT;
+	report->smute		= resp[2] & SI476X_ACF_SMUTE;
+	report->smattn		= resp[3] & SI476X_ACF_SMATTN;
+	report->chbw		= resp[4];
+	report->hicut		= resp[5];
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_am_acf_status);
+
+
+/**
+ * si476x_cmd_fm_seek_start - send 'FM_SEEK_START' command to the
+ * device
+ * @core  - device to send the command to
+ * @seekup - if set the direction of the search is 'up'
+ * @wrap   - if set seek wraps when hitting band limit
+ *
+ * This function begins search for a valid station. The station is
+ * considered valid when 'FM_VALID_SNR_THRESHOLD' and
+ * 'FM_VALID_RSSI_THRESHOLD' and 'FM_VALID_MAX_TUNE_ERROR' criteria
+ * are met.
+} *
+ * Function returns 0 on success and negative error code on failure
+ */
+int si476x_core_cmd_fm_seek_start(struct si476x_core *core,
+				  bool seekup, bool wrap)
+{
+	u8       resp[CMD_FM_SEEK_START_NRESP];
+	const u8 args[CMD_FM_SEEK_START_NARGS] = {
+		seekup << 3 | wrap << 2,
+	};
+
+	return si476x_cmd_tune_seek_freq(core, CMD_FM_SEEK_START,
+					 args, sizeof(args),
+					 resp, sizeof(resp));
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_seek_start);
+
+/**
+ * si476x_cmd_fm_rds_status - send 'FM_RDS_STATUS' command to the
+ * device
+ * @core - device to send the command to
+ * @status_only - if set the data is not removed from RDSFIFO,
+ *                RDSFIFOUSED is not decremented and data in all the
+ *                rest RDS data contains the last valid info received
+ * @mtfifo if set the command clears RDS receive FIFO
+ * @intack if set the command clards the RDSINT bit.
+ *
+ * Function returns 0 on success and negative error code on failure
+ */
+int si476x_core_cmd_fm_rds_status(struct si476x_core *core,
+				  bool status_only,
+				  bool mtfifo,
+				  bool intack,
+				  struct si476x_rds_status_report *report)
+{
+	int err;
+	u8       resp[CMD_FM_RDS_STATUS_NRESP];
+	const u8 args[CMD_FM_RDS_STATUS_NARGS] = {
+		status_only << 2 | mtfifo << 1 | intack,
+	};
+
+	err = si476x_core_send_command(core, CMD_FM_RDS_STATUS,
+				       args, ARRAY_SIZE(args),
+				       resp, ARRAY_SIZE(resp),
+				       SI476X_DEFAULT_TIMEOUT);
+	/*
+	 * Besides getting RDS status information this command can be
+	 * used to just acknowledge different interrupt flags in those
+	 * cases it is useless to copy and parse received data so user
+	 * can pass NULL, and thus avoid unnecessary copying.
+	 */
+	if (err < 0 || report == NULL)
+		return err;
+
+	report->rdstpptyint	= 0b00010000 & resp[1];
+	report->rdspiint	= 0b00001000 & resp[1];
+	report->rdssyncint	= 0b00000010 & resp[1];
+	report->rdsfifoint	= 0b00000001 & resp[1];
+
+	report->tpptyvalid	= 0b00010000 & resp[2];
+	report->pivalid		= 0b00001000 & resp[2];
+	report->rdssync		= 0b00000010 & resp[2];
+	report->rdsfifolost	= 0b00000001 & resp[2];
+
+	report->tp		= 0b00100000 & resp[3];
+	report->pty		= 0b00011111 & resp[3];
+
+	report->pi		= be16_to_cpup((__be16 *)(resp + 4));
+	report->rdsfifoused	= resp[6];
+
+	report->ble[V4L2_RDS_BLOCK_A]	= 0b11000000 & resp[7];
+	report->ble[V4L2_RDS_BLOCK_B]	= 0b00110000 & resp[7];
+	report->ble[V4L2_RDS_BLOCK_C]	= 0b00001100 & resp[7];
+	report->ble[V4L2_RDS_BLOCK_D]	= 0b00000011 & resp[7];
+
+	report->rds[V4L2_RDS_BLOCK_A].block = V4L2_RDS_BLOCK_A;
+	report->rds[V4L2_RDS_BLOCK_A].msb = resp[8];
+	report->rds[V4L2_RDS_BLOCK_A].lsb = resp[9];
+
+	report->rds[V4L2_RDS_BLOCK_B].block = V4L2_RDS_BLOCK_B;
+	report->rds[V4L2_RDS_BLOCK_B].msb = resp[10];
+	report->rds[V4L2_RDS_BLOCK_B].lsb = resp[11];
+
+	report->rds[V4L2_RDS_BLOCK_C].block = V4L2_RDS_BLOCK_C;
+	report->rds[V4L2_RDS_BLOCK_C].msb = resp[12];
+	report->rds[V4L2_RDS_BLOCK_C].lsb = resp[13];
+
+	report->rds[V4L2_RDS_BLOCK_D].block = V4L2_RDS_BLOCK_D;
+	report->rds[V4L2_RDS_BLOCK_D].msb = resp[14];
+	report->rds[V4L2_RDS_BLOCK_D].lsb = resp[15];
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_rds_status);
+
+int si476x_core_cmd_fm_rds_blockcount(struct si476x_core *core,
+				bool clear,
+				struct si476x_rds_blockcount_report *report)
+{
+	int err;
+	u8       resp[CMD_FM_RDS_BLOCKCOUNT_NRESP];
+	const u8 args[CMD_FM_RDS_BLOCKCOUNT_NARGS] = {
+		clear,
+	};
+
+	if (!report)
+		return -EINVAL;
+
+	err = si476x_core_send_command(core, CMD_FM_RDS_BLOCKCOUNT,
+				       args, ARRAY_SIZE(args),
+				       resp, ARRAY_SIZE(resp),
+				       SI476X_DEFAULT_TIMEOUT);
+
+	if (!err) {
+		report->expected	= be16_to_cpup((__be16 *)(resp + 2));
+		report->received	= be16_to_cpup((__be16 *)(resp + 4));
+		report->uncorrectable	= be16_to_cpup((__be16 *)(resp + 6));
+	}
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_rds_blockcount);
+
+int si476x_core_cmd_fm_phase_diversity(struct si476x_core *core,
+				       enum si476x_phase_diversity_mode mode)
+{
+	u8       resp[CMD_FM_PHASE_DIVERSITY_NRESP];
+	const u8 args[CMD_FM_PHASE_DIVERSITY_NARGS] = {
+		mode & 0b111,
+	};
+
+	return si476x_core_send_command(core, CMD_FM_PHASE_DIVERSITY,
+					args, ARRAY_SIZE(args),
+					resp, ARRAY_SIZE(resp),
+					SI476X_DEFAULT_TIMEOUT);
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_phase_diversity);
+/**
+ * si476x_core_cmd_fm_phase_div_status() - get the phase diversity
+ * status
+ *
+ * @core: si476x device
+ *
+ * NOTE caller must hold core lock
+ *
+ * Function returns the value of the status bit in case of success and
+ * negative error code in case of failre.
+ */
+int si476x_core_cmd_fm_phase_div_status(struct si476x_core *core)
+{
+	int err;
+	u8 resp[CMD_FM_PHASE_DIV_STATUS_NRESP];
+
+	err = si476x_core_send_command(core, CMD_FM_PHASE_DIV_STATUS,
+				       NULL, 0,
+				       resp, ARRAY_SIZE(resp),
+				       SI476X_DEFAULT_TIMEOUT);
+
+	return (err < 0) ? err : resp[1];
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_phase_div_status);
+
+
+/**
+ * si476x_cmd_am_seek_start - send 'FM_SEEK_START' command to the
+ * device
+ * @core  - device to send the command to
+ * @seekup - if set the direction of the search is 'up'
+ * @wrap   - if set seek wraps when hitting band limit
+ *
+ * This function begins search for a valid station. The station is
+ * considered valid when 'FM_VALID_SNR_THRESHOLD' and
+ * 'FM_VALID_RSSI_THRESHOLD' and 'FM_VALID_MAX_TUNE_ERROR' criteria
+ * are met.
+ *
+ * Function returns 0 on success and negative error code on failure
+ */
+int si476x_core_cmd_am_seek_start(struct si476x_core *core,
+				  bool seekup, bool wrap)
+{
+	u8       resp[CMD_AM_SEEK_START_NRESP];
+	const u8 args[CMD_AM_SEEK_START_NARGS] = {
+		seekup << 3 | wrap << 2,
+	};
+
+	return si476x_cmd_tune_seek_freq(core,  CMD_AM_SEEK_START,
+					 args, sizeof(args),
+					 resp, sizeof(resp));
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_am_seek_start);
+
+
+
+static int si476x_core_cmd_power_up_a10(struct si476x_core *core,
+					struct si476x_power_up_args *puargs)
+{
+	u8       resp[CMD_POWER_UP_A10_NRESP];
+	const bool intsel = (core->pinmux.a1 == SI476X_A1_IRQ);
+	const bool ctsen  = (core->client->irq != 0);
+	const u8 args[CMD_POWER_UP_A10_NARGS] = {
+		0xF7,		/* Reserved, always 0xF7 */
+		0x3F & puargs->xcload,	/* First two bits are reserved to be
+				 * zeros */
+		ctsen << 7 | intsel << 6 | 0x07, /* Last five bits
+						   * are reserved to
+						   * be written as 0x7 */
+		puargs->func << 4 | puargs->freq,
+		0x11,		/* Reserved, always 0x11 */
+	};
+
+	return si476x_core_send_command(core, CMD_POWER_UP,
+					args, ARRAY_SIZE(args),
+					resp, ARRAY_SIZE(resp),
+					SI476X_TIMEOUT_POWER_UP);
+}
+
+static int si476x_core_cmd_power_up_a20(struct si476x_core *core,
+				 struct si476x_power_up_args *puargs)
+{
+	u8       resp[CMD_POWER_UP_A20_NRESP];
+	const bool intsel = (core->pinmux.a1 == SI476X_A1_IRQ);
+	const bool ctsen  = (core->client->irq != 0);
+	const u8 args[CMD_POWER_UP_A20_NARGS] = {
+		puargs->ibias6x << 7 | puargs->xstart,
+		0x3F & puargs->xcload,	/* First two bits are reserved to be
+					 * zeros */
+		ctsen << 7 | intsel << 6 | puargs->fastboot << 5 |
+		puargs->xbiashc << 3 | puargs->xbias,
+		puargs->func << 4 | puargs->freq,
+		0x10 | puargs->xmode,
+	};
+
+	return si476x_core_send_command(core, CMD_POWER_UP,
+					args, ARRAY_SIZE(args),
+					resp, ARRAY_SIZE(resp),
+					SI476X_TIMEOUT_POWER_UP);
+}
+
+static int si476x_core_cmd_power_down_a10(struct si476x_core *core,
+					  struct si476x_power_down_args *pdargs)
+{
+	u8 resp[CMD_POWER_DOWN_A10_NRESP];
+
+	return si476x_core_send_command(core, CMD_POWER_DOWN,
+					NULL, 0,
+					resp, ARRAY_SIZE(resp),
+					SI476X_DEFAULT_TIMEOUT);
+}
+
+static int si476x_core_cmd_power_down_a20(struct si476x_core *core,
+					  struct si476x_power_down_args *pdargs)
+{
+	u8 resp[CMD_POWER_DOWN_A20_NRESP];
+	const u8 args[CMD_POWER_DOWN_A20_NARGS] = {
+		pdargs->xosc,
+	};
+	return si476x_core_send_command(core, CMD_POWER_DOWN,
+					args, ARRAY_SIZE(args),
+					resp, ARRAY_SIZE(resp),
+					SI476X_DEFAULT_TIMEOUT);
+}
+
+static int si476x_core_cmd_am_tune_freq_a10(struct si476x_core *core,
+					struct si476x_tune_freq_args *tuneargs)
+{
+
+	const int am_freq = tuneargs->freq;
+	u8       resp[CMD_AM_TUNE_FREQ_NRESP];
+	const u8 args[CMD_AM_TUNE_FREQ_NARGS] = {
+		(tuneargs->hd << 6),
+		msb(am_freq),
+		lsb(am_freq),
+	};
+
+	return si476x_cmd_tune_seek_freq(core, CMD_AM_TUNE_FREQ, args,
+					 sizeof(args),
+					 resp, sizeof(resp));
+}
+
+static int si476x_core_cmd_am_tune_freq_a20(struct si476x_core *core,
+					struct si476x_tune_freq_args *tuneargs)
+{
+	const int am_freq = tuneargs->freq;
+	u8       resp[CMD_AM_TUNE_FREQ_NRESP];
+	const u8 args[CMD_AM_TUNE_FREQ_NARGS] = {
+		(tuneargs->zifsr << 6) | (tuneargs->injside & 0b11),
+		msb(am_freq),
+		lsb(am_freq),
+	};
+
+	return si476x_cmd_tune_seek_freq(core, CMD_AM_TUNE_FREQ,
+					 args, sizeof(args),
+					 resp, sizeof(resp));
+}
+
+static int si476x_core_cmd_fm_rsq_status_a10(struct si476x_core *core,
+					struct si476x_rsq_status_args *rsqargs,
+					struct si476x_rsq_status_report *report)
+{
+	int err;
+	u8       resp[CMD_FM_RSQ_STATUS_A10_NRESP];
+	const u8 args[CMD_FM_RSQ_STATUS_A10_NARGS] = {
+		rsqargs->rsqack << 3 | rsqargs->attune << 2 |
+		rsqargs->cancel << 1 | rsqargs->stcack,
+	};
+
+	err = si476x_core_send_command(core, CMD_FM_RSQ_STATUS,
+				       args, ARRAY_SIZE(args),
+				       resp, ARRAY_SIZE(resp),
+				       SI476X_DEFAULT_TIMEOUT);
+	/*
+	 * Besides getting received signal quality information this
+	 * command can be used to just acknowledge different interrupt
+	 * flags in those cases it is useless to copy and parse
+	 * received data so user can pass NULL, and thus avoid
+	 * unnecessary copying.
+	 */
+	if (err < 0 || report == NULL)
+		return err;
+
+	report->multhint	= 0b10000000 & resp[1];
+	report->multlint	= 0b01000000 & resp[1];
+	report->snrhint		= 0b00001000 & resp[1];
+	report->snrlint		= 0b00000100 & resp[1];
+	report->rssihint	= 0b00000010 & resp[1];
+	report->rssilint	= 0b00000001 & resp[1];
+
+	report->bltf		= 0b10000000 & resp[2];
+	report->snr_ready	= 0b00100000 & resp[2];
+	report->rssiready	= 0b00001000 & resp[2];
+	report->afcrl		= 0b00000010 & resp[2];
+	report->valid		= 0b00000001 & resp[2];
+
+	report->readfreq	= be16_to_cpup((__be16 *)(resp + 3));
+	report->freqoff		= resp[5];
+	report->rssi		= resp[6];
+	report->snr		= resp[7];
+	report->lassi		= resp[9];
+	report->hassi		= resp[10];
+	report->mult		= resp[11];
+	report->dev		= resp[12];
+	report->readantcap	= be16_to_cpup((__be16 *)(resp + 13));
+	report->assi		= resp[15];
+	report->usn		= resp[16];
+
+	return err;
+}
+
+static int si476x_core_cmd_fm_rsq_status_a20(struct si476x_core *core,
+					     struct si476x_rsq_status_args *rsqargs,
+					     struct si476x_rsq_status_report *report)
+{
+	int err;
+	u8       resp[CMD_FM_RSQ_STATUS_A10_NRESP];
+	const u8 args[CMD_FM_RSQ_STATUS_A30_NARGS] = {
+		rsqargs->primary << 4 | rsqargs->rsqack << 3 |
+		rsqargs->attune  << 2 | rsqargs->cancel << 1 |
+		rsqargs->stcack,
+	};
+
+	err = si476x_core_send_command(core, CMD_FM_RSQ_STATUS,
+				       args, ARRAY_SIZE(args),
+				       resp, ARRAY_SIZE(resp),
+				       SI476X_DEFAULT_TIMEOUT);
+	/*
+	 * Besides getting received signal quality information this
+	 * command can be used to just acknowledge different interrupt
+	 * flags in those cases it is useless to copy and parse
+	 * received data so user can pass NULL, and thus avoid
+	 * unnecessary copying.
+	 */
+	if (err < 0 || report == NULL)
+		return err;
+
+	report->multhint	= 0b10000000 & resp[1];
+	report->multlint	= 0b01000000 & resp[1];
+	report->snrhint		= 0b00001000 & resp[1];
+	report->snrlint		= 0b00000100 & resp[1];
+	report->rssihint	= 0b00000010 & resp[1];
+	report->rssilint	= 0b00000001 & resp[1];
+
+	report->bltf		= 0b10000000 & resp[2];
+	report->snr_ready	= 0b00100000 & resp[2];
+	report->rssiready	= 0b00001000 & resp[2];
+	report->afcrl		= 0b00000010 & resp[2];
+	report->valid		= 0b00000001 & resp[2];
+
+	report->readfreq	= be16_to_cpup((__be16 *)(resp + 3));
+	report->freqoff		= resp[5];
+	report->rssi		= resp[6];
+	report->snr		= resp[7];
+	report->lassi		= resp[9];
+	report->hassi		= resp[10];
+	report->mult		= resp[11];
+	report->dev		= resp[12];
+	report->readantcap	= be16_to_cpup((__be16 *)(resp + 13));
+	report->assi		= resp[15];
+	report->usn		= resp[16];
+
+	return err;
+}
+
+
+static int si476x_core_cmd_fm_rsq_status_a30(struct si476x_core *core,
+					struct si476x_rsq_status_args *rsqargs,
+					struct si476x_rsq_status_report *report)
+{
+	int err;
+	u8       resp[CMD_FM_RSQ_STATUS_A30_NRESP];
+	const u8 args[CMD_FM_RSQ_STATUS_A30_NARGS] = {
+		rsqargs->primary << 4 | rsqargs->rsqack << 3 |
+		rsqargs->attune << 2 | rsqargs->cancel << 1 |
+		rsqargs->stcack,
+	};
+
+	err = si476x_core_send_command(core, CMD_FM_RSQ_STATUS,
+				       args, ARRAY_SIZE(args),
+				       resp, ARRAY_SIZE(resp),
+				       SI476X_DEFAULT_TIMEOUT);
+	/*
+	 * Besides getting received signal quality information this
+	 * command can be used to just acknowledge different interrupt
+	 * flags in those cases it is useless to copy and parse
+	 * received data so user can pass NULL, and thus avoid
+	 * unnecessary copying.
+	 */
+	if (err < 0 || report == NULL)
+		return err;
+
+	report->multhint	= 0b10000000 & resp[1];
+	report->multlint	= 0b01000000 & resp[1];
+	report->snrhint		= 0b00001000 & resp[1];
+	report->snrlint		= 0b00000100 & resp[1];
+	report->rssihint	= 0b00000010 & resp[1];
+	report->rssilint	= 0b00000001 & resp[1];
+
+	report->bltf		= 0b10000000 & resp[2];
+	report->snr_ready	= 0b00100000 & resp[2];
+	report->rssiready	= 0b00001000 & resp[2];
+	report->injside         = 0b00000100 & resp[2];
+	report->afcrl		= 0b00000010 & resp[2];
+	report->valid		= 0b00000001 & resp[2];
+
+	report->readfreq	= be16_to_cpup((__be16 *)(resp + 3));
+	report->freqoff		= resp[5];
+	report->rssi		= resp[6];
+	report->snr		= resp[7];
+	report->issi		= resp[8];
+	report->lassi		= resp[9];
+	report->hassi		= resp[10];
+	report->mult		= resp[11];
+	report->dev		= resp[12];
+	report->readantcap	= be16_to_cpup((__be16 *)(resp + 13));
+	report->assi		= resp[15];
+	report->usn		= resp[16];
+
+	report->pilotdev	= resp[17];
+	report->rdsdev		= resp[18];
+	report->assidev		= resp[19];
+	report->strongdev	= resp[20];
+	report->rdspi		= be16_to_cpup((__be16 *)(resp + 21));
+
+	return err;
+}
+
+static int si476x_core_cmd_fm_tune_freq_a10(struct si476x_core *core,
+					struct si476x_tune_freq_args *tuneargs)
+{
+	u8       resp[CMD_FM_TUNE_FREQ_NRESP];
+	const u8 args[CMD_FM_TUNE_FREQ_A10_NARGS] = {
+		(tuneargs->hd << 6) | (tuneargs->tunemode << 4)
+		| (tuneargs->smoothmetrics << 2),
+		msb(tuneargs->freq),
+		lsb(tuneargs->freq),
+		msb(tuneargs->antcap),
+		lsb(tuneargs->antcap)
+	};
+
+	return si476x_cmd_tune_seek_freq(core, CMD_FM_TUNE_FREQ,
+					 args, sizeof(args),
+					 resp, sizeof(resp));
+}
+
+static int si476x_core_cmd_fm_tune_freq_a20(struct si476x_core *core,
+					struct si476x_tune_freq_args *tuneargs)
+{
+	u8       resp[CMD_FM_TUNE_FREQ_NRESP];
+	const u8 args[CMD_FM_TUNE_FREQ_A20_NARGS] = {
+		(tuneargs->hd << 6) | (tuneargs->tunemode << 4)
+		|  (tuneargs->smoothmetrics << 2) | (tuneargs->injside),
+		msb(tuneargs->freq),
+		lsb(tuneargs->freq),
+	};
+
+	return si476x_cmd_tune_seek_freq(core, CMD_FM_TUNE_FREQ,
+					 args, sizeof(args),
+					 resp, sizeof(resp));
+}
+
+static int si476x_core_cmd_agc_status_a20(struct si476x_core *core,
+					struct si476x_agc_status_report *report)
+{
+	int err;
+	u8 resp[CMD_AGC_STATUS_NRESP_A20];
+
+	if (!report)
+		return -EINVAL;
+
+	err = si476x_core_send_command(core, CMD_AGC_STATUS,
+				       NULL, 0,
+				       resp, ARRAY_SIZE(resp),
+				       SI476X_DEFAULT_TIMEOUT);
+	if (err < 0)
+		return err;
+
+	report->mxhi		= resp[1] & SI476X_AGC_MXHI;
+	report->mxlo		= resp[1] & SI476X_AGC_MXLO;
+	report->lnahi		= resp[1] & SI476X_AGC_LNAHI;
+	report->lnalo		= resp[1] & SI476X_AGC_LNALO;
+	report->fmagc1		= resp[2];
+	report->fmagc2		= resp[3];
+	report->pgagain		= resp[4];
+	report->fmwblang	= resp[5];
+
+	return err;
+}
+
+static int si476x_core_cmd_agc_status_a10(struct si476x_core *core,
+					struct si476x_agc_status_report *report)
+{
+	int err;
+	u8 resp[CMD_AGC_STATUS_NRESP_A10];
+
+	if (!report)
+		return -EINVAL;
+
+	err = si476x_core_send_command(core, CMD_AGC_STATUS,
+				       NULL, 0,
+				       resp, ARRAY_SIZE(resp),
+				       SI476X_DEFAULT_TIMEOUT);
+	if (err < 0)
+		return err;
+
+	report->mxhi	= resp[1] & SI476X_AGC_MXHI;
+	report->mxlo	= resp[1] & SI476X_AGC_MXLO;
+	report->lnahi	= resp[1] & SI476X_AGC_LNAHI;
+	report->lnalo	= resp[1] & SI476X_AGC_LNALO;
+
+	return err;
+}
+
+typedef int (*tune_freq_func_t) (struct si476x_core *core,
+				 struct si476x_tune_freq_args *tuneargs);
+
+static struct {
+	int (*power_up) (struct si476x_core *,
+			 struct si476x_power_up_args *);
+	int (*power_down) (struct si476x_core *,
+			   struct si476x_power_down_args *);
+
+	tune_freq_func_t fm_tune_freq;
+	tune_freq_func_t am_tune_freq;
+
+	int (*fm_rsq_status)(struct si476x_core *,
+			     struct si476x_rsq_status_args *,
+			     struct si476x_rsq_status_report *);
+
+	int (*agc_status)(struct si476x_core *,
+			  struct si476x_agc_status_report *);
+	int (*intb_pin_cfg)(struct si476x_core *core,
+			    enum si476x_intb_config intb,
+			    enum si476x_a1_config a1);
+} si476x_cmds_vtable[] = {
+	[SI476X_REVISION_A10] = {
+		.power_up	= si476x_core_cmd_power_up_a10,
+		.power_down	= si476x_core_cmd_power_down_a10,
+		.fm_tune_freq	= si476x_core_cmd_fm_tune_freq_a10,
+		.am_tune_freq	= si476x_core_cmd_am_tune_freq_a10,
+		.fm_rsq_status	= si476x_core_cmd_fm_rsq_status_a10,
+		.agc_status	= si476x_core_cmd_agc_status_a10,
+		.intb_pin_cfg   = si476x_core_cmd_intb_pin_cfg_a10,
+	},
+	[SI476X_REVISION_A20] = {
+		.power_up	= si476x_core_cmd_power_up_a20,
+		.power_down	= si476x_core_cmd_power_down_a20,
+		.fm_tune_freq	= si476x_core_cmd_fm_tune_freq_a20,
+		.am_tune_freq	= si476x_core_cmd_am_tune_freq_a20,
+		.fm_rsq_status	= si476x_core_cmd_fm_rsq_status_a20,
+		.agc_status	= si476x_core_cmd_agc_status_a20,
+		.intb_pin_cfg   = si476x_core_cmd_intb_pin_cfg_a20,
+	},
+	[SI476X_REVISION_A30] = {
+		.power_up	= si476x_core_cmd_power_up_a20,
+		.power_down	= si476x_core_cmd_power_down_a20,
+		.fm_tune_freq	= si476x_core_cmd_fm_tune_freq_a20,
+		.am_tune_freq	= si476x_core_cmd_am_tune_freq_a20,
+		.fm_rsq_status	= si476x_core_cmd_fm_rsq_status_a30,
+		.agc_status	= si476x_core_cmd_agc_status_a20,
+		.intb_pin_cfg   = si476x_core_cmd_intb_pin_cfg_a20,
+	},
+};
+
+int si476x_core_cmd_power_up(struct si476x_core *core,
+			     struct si476x_power_up_args *args)
+{
+	BUG_ON(core->revision > SI476X_REVISION_A30 ||
+	       core->revision == -1);
+	return si476x_cmds_vtable[core->revision].power_up(core, args);
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_power_up);
+
+int si476x_core_cmd_power_down(struct si476x_core *core,
+			       struct si476x_power_down_args *args)
+{
+	BUG_ON(core->revision > SI476X_REVISION_A30 ||
+	       core->revision == -1);
+	return si476x_cmds_vtable[core->revision].power_down(core, args);
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_power_down);
+
+int si476x_core_cmd_fm_tune_freq(struct si476x_core *core,
+				 struct si476x_tune_freq_args *args)
+{
+	BUG_ON(core->revision > SI476X_REVISION_A30 ||
+	       core->revision == -1);
+	return si476x_cmds_vtable[core->revision].fm_tune_freq(core, args);
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_tune_freq);
+
+int si476x_core_cmd_am_tune_freq(struct si476x_core *core,
+				 struct si476x_tune_freq_args *args)
+{
+	BUG_ON(core->revision > SI476X_REVISION_A30 ||
+	       core->revision == -1);
+	return si476x_cmds_vtable[core->revision].am_tune_freq(core, args);
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_am_tune_freq);
+
+int si476x_core_cmd_fm_rsq_status(struct si476x_core *core,
+				  struct si476x_rsq_status_args *args,
+				  struct si476x_rsq_status_report *report)
+
+{
+	BUG_ON(core->revision > SI476X_REVISION_A30 ||
+	       core->revision == -1);
+	return si476x_cmds_vtable[core->revision].fm_rsq_status(core, args,
+								report);
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_rsq_status);
+
+int si476x_core_cmd_agc_status(struct si476x_core *core,
+				  struct si476x_agc_status_report *report)
+
+{
+	BUG_ON(core->revision > SI476X_REVISION_A30 ||
+	       core->revision == -1);
+	return si476x_cmds_vtable[core->revision].agc_status(core, report);
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_agc_status);
+
+int si476x_core_cmd_intb_pin_cfg(struct si476x_core *core,
+			    enum si476x_intb_config intb,
+			    enum si476x_a1_config a1)
+{
+	BUG_ON(core->revision > SI476X_REVISION_A30 ||
+	       core->revision == -1);
+
+	return si476x_cmds_vtable[core->revision].intb_pin_cfg(core, intb, a1);
+}
+EXPORT_SYMBOL_GPL(si476x_core_cmd_intb_pin_cfg);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Andrey Smirnov <andrew.smirnov@gmail.com>");
+MODULE_DESCRIPTION("API for command exchange for si476x");
-- 
cgit v1.2.3


From 730a30ab7fba60c986e0e4a362bb21d2ed196a29 Mon Sep 17 00:00:00 2001
From: Andrey Smirnov <andreysm@charmander.(none)>
Date: Thu, 18 Apr 2013 09:58:28 -0700
Subject: mfd: si476x: Add the bulk of the core driver

This patch adds main part(out of three) of the I2C driver for the
"core" of MFD device.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/si476x-i2c.c | 886 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 886 insertions(+)
 create mode 100644 drivers/mfd/si476x-i2c.c

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/si476x-i2c.c b/drivers/mfd/si476x-i2c.c
new file mode 100644
index 000000000000..118c6b13d8cb
--- /dev/null
+++ b/drivers/mfd/si476x-i2c.c
@@ -0,0 +1,886 @@
+/*
+ * drivers/mfd/si476x-i2c.c -- Core device driver for si476x MFD
+ * device
+ *
+ * Copyright (C) 2012 Innovative Converged Devices(ICD)
+ * Copyright (C) 2013 Andrey Smirnov
+ *
+ * Author: Andrey Smirnov <andrew.smirnov@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ */
+#include <linux/module.h>
+
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/regulator/consumer.h>
+#include <linux/i2c.h>
+#include <linux/err.h>
+
+#include <linux/mfd/si476x-core.h>
+
+#define SI476X_MAX_IO_ERRORS		10
+#define SI476X_DRIVER_RDS_FIFO_DEPTH	128
+
+/**
+ * si476x_core_config_pinmux() - pin function configuration function
+ *
+ * @core: Core device structure
+ *
+ * Configure the functions of the pins of the radio chip.
+ *
+ * The function returns zero in case of succes or negative error code
+ * otherwise.
+ */
+static int si476x_core_config_pinmux(struct si476x_core *core)
+{
+	int err;
+	dev_dbg(&core->client->dev, "Configuring pinmux\n");
+	err = si476x_core_cmd_dig_audio_pin_cfg(core,
+						core->pinmux.dclk,
+						core->pinmux.dfs,
+						core->pinmux.dout,
+						core->pinmux.xout);
+	if (err < 0) {
+		dev_err(&core->client->dev,
+			"Failed to configure digital audio pins(err = %d)\n",
+			err);
+		return err;
+	}
+
+	err = si476x_core_cmd_zif_pin_cfg(core,
+					  core->pinmux.iqclk,
+					  core->pinmux.iqfs,
+					  core->pinmux.iout,
+					  core->pinmux.qout);
+	if (err < 0) {
+		dev_err(&core->client->dev,
+			"Failed to configure ZIF pins(err = %d)\n",
+			err);
+		return err;
+	}
+
+	err = si476x_core_cmd_ic_link_gpo_ctl_pin_cfg(core,
+						      core->pinmux.icin,
+						      core->pinmux.icip,
+						      core->pinmux.icon,
+						      core->pinmux.icop);
+	if (err < 0) {
+		dev_err(&core->client->dev,
+			"Failed to configure IC-Link/GPO pins(err = %d)\n",
+			err);
+		return err;
+	}
+
+	err = si476x_core_cmd_ana_audio_pin_cfg(core,
+						core->pinmux.lrout);
+	if (err < 0) {
+		dev_err(&core->client->dev,
+			"Failed to configure analog audio pins(err = %d)\n",
+			err);
+		return err;
+	}
+
+	err = si476x_core_cmd_intb_pin_cfg(core,
+					   core->pinmux.intb,
+					   core->pinmux.a1);
+	if (err < 0) {
+		dev_err(&core->client->dev,
+			"Failed to configure interrupt pins(err = %d)\n",
+			err);
+		return err;
+	}
+
+	return 0;
+}
+
+static inline void si476x_core_schedule_polling_work(struct si476x_core *core)
+{
+	schedule_delayed_work(&core->status_monitor,
+			      usecs_to_jiffies(SI476X_STATUS_POLL_US));
+}
+
+/**
+ * si476x_core_start() - early chip startup function
+ * @core: Core device structure
+ * @soft: When set, this flag forces "soft" startup, where "soft"
+ * power down is the one done by sending appropriate command instead
+ * of using reset pin of the tuner
+ *
+ * Perform required startup sequence to correctly power
+ * up the chip and perform initial configuration. It does the
+ * following sequence of actions:
+ *       1. Claims and enables the power supplies VD and VIO1 required
+ *          for I2C interface of the chip operation.
+ *       2. Waits for 100us, pulls the reset line up, enables irq,
+ *          waits for another 100us as it is specified by the
+ *          datasheet.
+ *       3. Sends 'POWER_UP' command to the device with all provided
+ *          information about power-up parameters.
+ *       4. Configures, pin multiplexor, disables digital audio and
+ *          configures interrupt sources.
+ *
+ * The function returns zero in case of succes or negative error code
+ * otherwise.
+ */
+int si476x_core_start(struct si476x_core *core, bool soft)
+{
+	struct i2c_client *client = core->client;
+	int err;
+
+	if (!soft) {
+		if (gpio_is_valid(core->gpio_reset))
+			gpio_set_value_cansleep(core->gpio_reset, 1);
+
+		if (client->irq)
+			enable_irq(client->irq);
+
+		udelay(100);
+
+		if (!client->irq) {
+			atomic_set(&core->is_alive, 1);
+			si476x_core_schedule_polling_work(core);
+		}
+	} else {
+		if (client->irq)
+			enable_irq(client->irq);
+		else {
+			atomic_set(&core->is_alive, 1);
+			si476x_core_schedule_polling_work(core);
+		}
+	}
+
+	err = si476x_core_cmd_power_up(core,
+				       &core->power_up_parameters);
+
+	if (err < 0) {
+		dev_err(&core->client->dev,
+			"Power up failure(err = %d)\n",
+			err);
+		goto disable_irq;
+	}
+
+	if (client->irq)
+		atomic_set(&core->is_alive, 1);
+
+	err = si476x_core_config_pinmux(core);
+	if (err < 0) {
+		dev_err(&core->client->dev,
+			"Failed to configure pinmux(err = %d)\n",
+			err);
+		goto disable_irq;
+	}
+
+	if (client->irq) {
+		err = regmap_write(core->regmap,
+				   SI476X_PROP_INT_CTL_ENABLE,
+				   SI476X_RDSIEN |
+				   SI476X_STCIEN |
+				   SI476X_CTSIEN);
+		if (err < 0) {
+			dev_err(&core->client->dev,
+				"Failed to configure interrupt sources"
+				"(err = %d)\n", err);
+			goto disable_irq;
+		}
+	}
+
+	return 0;
+
+disable_irq:
+	if (err == -ENODEV)
+		atomic_set(&core->is_alive, 0);
+
+	if (client->irq)
+		disable_irq(client->irq);
+	else
+		cancel_delayed_work_sync(&core->status_monitor);
+
+	if (gpio_is_valid(core->gpio_reset))
+		gpio_set_value_cansleep(core->gpio_reset, 0);
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(si476x_core_start);
+
+/**
+ * si476x_core_stop() - chip power-down function
+ * @core: Core device structure
+ * @soft: When set, function sends a POWER_DOWN command instead of
+ * bringing reset line low
+ *
+ * Power down the chip by performing following actions:
+ * 1. Disable IRQ or stop the polling worker
+ * 2. Send the POWER_DOWN command if the power down is soft or bring
+ *    reset line low if not.
+ *
+ * The function returns zero in case of succes or negative error code
+ * otherwise.
+ */
+int si476x_core_stop(struct si476x_core *core, bool soft)
+{
+	int err = 0;
+	atomic_set(&core->is_alive, 0);
+
+	if (soft) {
+		/* TODO: This probably shoud be a configurable option,
+		 * so it is possible to have the chips keep their
+		 * oscillators running
+		 */
+		struct si476x_power_down_args args = {
+			.xosc = false,
+		};
+		err = si476x_core_cmd_power_down(core, &args);
+	}
+
+	/* We couldn't disable those before
+	 * 'si476x_core_cmd_power_down' since we expect to get CTS
+	 * interrupt */
+	if (core->client->irq)
+		disable_irq(core->client->irq);
+	else
+		cancel_delayed_work_sync(&core->status_monitor);
+
+	if (!soft) {
+		if (gpio_is_valid(core->gpio_reset))
+			gpio_set_value_cansleep(core->gpio_reset, 0);
+	}
+	return err;
+}
+EXPORT_SYMBOL_GPL(si476x_core_stop);
+
+/**
+ * si476x_core_set_power_state() - set the level at which the power is
+ * supplied for the chip.
+ * @core: Core device structure
+ * @next_state: enum si476x_power_state describing power state to
+ *              switch to.
+ *
+ * Switch on all the required power supplies
+ *
+ * This function returns 0 in case of suvccess and negative error code
+ * otherwise.
+ */
+int si476x_core_set_power_state(struct si476x_core *core,
+				enum si476x_power_state next_state)
+{
+	/*
+	   It is not clear form the datasheet if it is possible to
+	   work with device if not all power domains are operational.
+	   So for now the power-up policy is "power-up all the things!"
+	 */
+	int err = 0;
+
+	if (core->power_state == SI476X_POWER_INCONSISTENT) {
+		dev_err(&core->client->dev,
+			"The device in inconsistent power state\n");
+		return -EINVAL;
+	}
+
+	if (next_state != core->power_state) {
+		switch (next_state) {
+		case SI476X_POWER_UP_FULL:
+			err = regulator_bulk_enable(ARRAY_SIZE(core->supplies),
+						    core->supplies);
+			if (err < 0) {
+				core->power_state = SI476X_POWER_INCONSISTENT;
+				break;
+			}
+			/*
+			 * Startup timing diagram recommends to have a
+			 * 100 us delay between enabling of the power
+			 * supplies and turning the tuner on.
+			 */
+			udelay(100);
+
+			err = si476x_core_start(core, false);
+			if (err < 0)
+				goto disable_regulators;
+
+			core->power_state = next_state;
+			break;
+
+		case SI476X_POWER_DOWN:
+			core->power_state = next_state;
+			err = si476x_core_stop(core, false);
+			if (err < 0)
+				core->power_state = SI476X_POWER_INCONSISTENT;
+disable_regulators:
+			err = regulator_bulk_disable(ARRAY_SIZE(core->supplies),
+						     core->supplies);
+			if (err < 0)
+				core->power_state = SI476X_POWER_INCONSISTENT;
+			break;
+		default:
+			BUG();
+		}
+	}
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(si476x_core_set_power_state);
+
+/**
+ * si476x_core_report_drainer_stop() - mark the completion of the RDS
+ * buffer drain porcess by the worker.
+ *
+ * @core: Core device structure
+ */
+static inline void si476x_core_report_drainer_stop(struct si476x_core *core)
+{
+	mutex_lock(&core->rds_drainer_status_lock);
+	core->rds_drainer_is_working = false;
+	mutex_unlock(&core->rds_drainer_status_lock);
+}
+
+/**
+ * si476x_core_start_rds_drainer_once() - start RDS drainer worker if
+ * ther is none working, do nothing otherwise
+ *
+ * @core: Datastructure corresponding to the chip.
+ */
+static inline void si476x_core_start_rds_drainer_once(struct si476x_core *core)
+{
+	mutex_lock(&core->rds_drainer_status_lock);
+	if (!core->rds_drainer_is_working) {
+		core->rds_drainer_is_working = true;
+		schedule_work(&core->rds_fifo_drainer);
+	}
+	mutex_unlock(&core->rds_drainer_status_lock);
+}
+/**
+ * si476x_drain_rds_fifo() - RDS buffer drainer.
+ * @work: struct work_struct being ppassed to the function by the
+ * kernel.
+ *
+ * Drain the contents of the RDS FIFO of
+ */
+static void si476x_core_drain_rds_fifo(struct work_struct *work)
+{
+	int err;
+
+	struct si476x_core *core = container_of(work, struct si476x_core,
+						rds_fifo_drainer);
+
+	struct si476x_rds_status_report report;
+
+	si476x_core_lock(core);
+	err = si476x_core_cmd_fm_rds_status(core, true, false, false, &report);
+	if (!err) {
+		int i = report.rdsfifoused;
+		dev_dbg(&core->client->dev,
+			"%d elements in RDS FIFO. Draining.\n", i);
+		for (; i > 0; --i) {
+			err = si476x_core_cmd_fm_rds_status(core, false, false,
+							    (i == 1), &report);
+			if (err < 0)
+				goto unlock;
+
+			kfifo_in(&core->rds_fifo, report.rds,
+				 sizeof(report.rds));
+			dev_dbg(&core->client->dev, "RDS data:\n %*ph\n",
+				sizeof(report.rds), report.rds);
+		}
+		dev_dbg(&core->client->dev, "Drrrrained!\n");
+		wake_up_interruptible(&core->rds_read_queue);
+	}
+
+unlock:
+	si476x_core_unlock(core);
+	si476x_core_report_drainer_stop(core);
+}
+
+/**
+ * si476x_core_pronounce_dead()
+ *
+ * @core: Core device structure
+ *
+ * Mark the device as being dead and wake up all potentially waiting
+ * threads of execution.
+ *
+ */
+static void si476x_core_pronounce_dead(struct si476x_core *core)
+{
+	dev_info(&core->client->dev, "Core device is dead.\n");
+
+	atomic_set(&core->is_alive, 0);
+
+	/* Wake up al possible waiting processes */
+	wake_up_interruptible(&core->rds_read_queue);
+
+	atomic_set(&core->cts, 1);
+	wake_up(&core->command);
+
+	atomic_set(&core->stc, 1);
+	wake_up(&core->tuning);
+}
+
+/**
+ * si476x_core_i2c_xfer()
+ *
+ * @core: Core device structure
+ * @type: Transfer type
+ * @buf: Transfer buffer for/with data
+ * @count: Transfer buffer size
+ *
+ * Perfrom and I2C transfer(either read or write) and keep a counter
+ * of I/O errors. If the error counter rises above the threshold
+ * pronounce device dead.
+ *
+ * The function returns zero on succes or negative error code on
+ * failure.
+ */
+int si476x_core_i2c_xfer(struct si476x_core *core,
+		    enum si476x_i2c_type type,
+		    char *buf, int count)
+{
+	static int io_errors_count;
+	int err;
+	if (type == SI476X_I2C_SEND)
+		err = i2c_master_send(core->client, buf, count);
+	else
+		err = i2c_master_recv(core->client, buf, count);
+
+	if (err < 0) {
+		if (io_errors_count++ > SI476X_MAX_IO_ERRORS)
+			si476x_core_pronounce_dead(core);
+	} else {
+		io_errors_count = 0;
+	}
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(si476x_core_i2c_xfer);
+
+/**
+ * si476x_get_status()
+ * @core: Core device structure
+ *
+ * Get the status byte of the core device by berforming one byte I2C
+ * read.
+ *
+ * The function returns a status value or a negative error code on
+ * error.
+ */
+static int si476x_core_get_status(struct si476x_core *core)
+{
+	u8 response;
+	int err = si476x_core_i2c_xfer(core, SI476X_I2C_RECV,
+				  &response, sizeof(response));
+
+	return (err < 0) ? err : response;
+}
+
+/**
+ * si476x_get_and_signal_status() - IRQ dispatcher
+ * @core: Core device structure
+ *
+ * Dispatch the arrived interrupt request based on the value of the
+ * status byte reported by the tuner.
+ *
+ */
+static void si476x_core_get_and_signal_status(struct si476x_core *core)
+{
+	int status = si476x_core_get_status(core);
+	if (status < 0) {
+		dev_err(&core->client->dev, "Failed to get status\n");
+		return;
+	}
+
+	if (status & SI476X_CTS) {
+		/* Unfortunately completions could not be used for
+		 * signalling CTS since this flag cannot be cleared
+		 * in status byte, and therefore once it becomes true
+		 * multiple calls to 'complete' would cause the
+		 * commands following the current one to be completed
+		 * before they actually are */
+		dev_dbg(&core->client->dev, "[interrupt] CTSINT\n");
+		atomic_set(&core->cts, 1);
+		wake_up(&core->command);
+	}
+
+	if (status & SI476X_FM_RDS_INT) {
+		dev_dbg(&core->client->dev, "[interrupt] RDSINT\n");
+		si476x_core_start_rds_drainer_once(core);
+	}
+
+	if (status & SI476X_STC_INT) {
+		dev_dbg(&core->client->dev, "[interrupt] STCINT\n");
+		atomic_set(&core->stc, 1);
+		wake_up(&core->tuning);
+	}
+}
+
+static void si476x_core_poll_loop(struct work_struct *work)
+{
+	struct si476x_core *core = SI476X_WORK_TO_CORE(work);
+
+	si476x_core_get_and_signal_status(core);
+
+	if (atomic_read(&core->is_alive))
+		si476x_core_schedule_polling_work(core);
+}
+
+static irqreturn_t si476x_core_interrupt(int irq, void *dev)
+{
+	struct si476x_core *core = dev;
+
+	si476x_core_get_and_signal_status(core);
+
+	return IRQ_HANDLED;
+}
+
+/**
+ * si476x_firmware_version_to_revision()
+ * @core: Core device structure
+ * @major:  Firmware major number
+ * @minor1: Firmware first minor number
+ * @minor2: Firmware second minor number
+ *
+ * Convert a chip's firmware version number into an offset that later
+ * will be used to as offset in "vtable" of tuner functions
+ *
+ * This function returns a positive offset in case of success and a -1
+ * in case of failure.
+ */
+static int si476x_core_fwver_to_revision(struct si476x_core *core,
+					 int func, int major,
+					 int minor1, int minor2)
+{
+	switch (func) {
+	case SI476X_FUNC_FM_RECEIVER:
+		switch (major) {
+		case 5:
+			return SI476X_REVISION_A10;
+		case 8:
+			return SI476X_REVISION_A20;
+		case 10:
+			return SI476X_REVISION_A30;
+		default:
+			goto unknown_revision;
+		}
+	case SI476X_FUNC_AM_RECEIVER:
+		switch (major) {
+		case 5:
+			return SI476X_REVISION_A10;
+		case 7:
+			return SI476X_REVISION_A20;
+		case 9:
+			return SI476X_REVISION_A30;
+		default:
+			goto unknown_revision;
+		}
+	case SI476X_FUNC_WB_RECEIVER:
+		switch (major) {
+		case 3:
+			return SI476X_REVISION_A10;
+		case 5:
+			return SI476X_REVISION_A20;
+		case 7:
+			return SI476X_REVISION_A30;
+		default:
+			goto unknown_revision;
+		}
+	case SI476X_FUNC_BOOTLOADER:
+	default:		/* FALLTHROUG */
+		BUG();
+		return -1;
+	}
+
+unknown_revision:
+	dev_err(&core->client->dev,
+		"Unsupported version of the firmware: %d.%d.%d, "
+		"reverting to A10 comptible functions\n",
+		major, minor1, minor2);
+
+	return SI476X_REVISION_A10;
+}
+
+/**
+ * si476x_get_revision_info()
+ * @core: Core device structure
+ *
+ * Get the firmware version number of the device. It is done in
+ * following three steps:
+ *    1. Power-up the device
+ *    2. Send the 'FUNC_INFO' command
+ *    3. Powering the device down.
+ *
+ * The function return zero on success and a negative error code on
+ * failure.
+ */
+static int si476x_core_get_revision_info(struct si476x_core *core)
+{
+	int rval;
+	struct si476x_func_info info;
+
+	si476x_core_lock(core);
+	rval = si476x_core_set_power_state(core, SI476X_POWER_UP_FULL);
+	if (rval < 0)
+		goto exit;
+
+	rval = si476x_core_cmd_func_info(core, &info);
+	if (rval < 0)
+		goto power_down;
+
+	core->revision = si476x_core_fwver_to_revision(core, info.func,
+						       info.firmware.major,
+						       info.firmware.minor[0],
+						       info.firmware.minor[1]);
+power_down:
+	si476x_core_set_power_state(core, SI476X_POWER_DOWN);
+exit:
+	si476x_core_unlock(core);
+
+	return rval;
+}
+
+bool si476x_core_has_am(struct si476x_core *core)
+{
+	return core->chip_id == SI476X_CHIP_SI4761 ||
+		core->chip_id == SI476X_CHIP_SI4764;
+}
+EXPORT_SYMBOL_GPL(si476x_core_has_am);
+
+bool si476x_core_has_diversity(struct si476x_core *core)
+{
+	return core->chip_id == SI476X_CHIP_SI4764;
+}
+EXPORT_SYMBOL_GPL(si476x_core_has_diversity);
+
+bool si476x_core_is_a_secondary_tuner(struct si476x_core *core)
+{
+	return si476x_core_has_diversity(core) &&
+		(core->diversity_mode == SI476X_PHDIV_SECONDARY_ANTENNA ||
+		 core->diversity_mode == SI476X_PHDIV_SECONDARY_COMBINING);
+}
+EXPORT_SYMBOL_GPL(si476x_core_is_a_secondary_tuner);
+
+bool si476x_core_is_a_primary_tuner(struct si476x_core *core)
+{
+	return si476x_core_has_diversity(core) &&
+		(core->diversity_mode == SI476X_PHDIV_PRIMARY_ANTENNA ||
+		 core->diversity_mode == SI476X_PHDIV_PRIMARY_COMBINING);
+}
+EXPORT_SYMBOL_GPL(si476x_core_is_a_primary_tuner);
+
+bool si476x_core_is_in_am_receiver_mode(struct si476x_core *core)
+{
+	return si476x_core_has_am(core) &&
+		(core->power_up_parameters.func == SI476X_FUNC_AM_RECEIVER);
+}
+EXPORT_SYMBOL_GPL(si476x_core_is_in_am_receiver_mode);
+
+bool si476x_core_is_powered_up(struct si476x_core *core)
+{
+	return core->power_state == SI476X_POWER_UP_FULL;
+}
+EXPORT_SYMBOL_GPL(si476x_core_is_powered_up);
+
+static int si476x_core_probe(struct i2c_client *client,
+			     const struct i2c_device_id *id)
+{
+	int rval;
+	struct si476x_core          *core;
+	struct si476x_platform_data *pdata;
+	struct mfd_cell *cell;
+	int              cell_num;
+
+	core = devm_kzalloc(&client->dev, sizeof(*core), GFP_KERNEL);
+	if (!core) {
+		dev_err(&client->dev,
+			"failed to allocate 'struct si476x_core'\n");
+		return -ENOMEM;
+	}
+	core->client = client;
+
+	core->regmap = devm_regmap_init_si476x(core);
+	if (IS_ERR(core->regmap)) {
+		rval = PTR_ERR(core->regmap);
+		dev_err(&client->dev,
+			"Failed to allocate register map: %d\n",
+			rval);
+		return rval;
+	}
+
+	i2c_set_clientdata(client, core);
+
+	atomic_set(&core->is_alive, 0);
+	core->power_state = SI476X_POWER_DOWN;
+
+	pdata = client->dev.platform_data;
+	if (pdata) {
+		memcpy(&core->power_up_parameters,
+		       &pdata->power_up_parameters,
+		       sizeof(core->power_up_parameters));
+
+		core->gpio_reset = -1;
+		if (gpio_is_valid(pdata->gpio_reset)) {
+			rval = gpio_request(pdata->gpio_reset, "si476x reset");
+			if (rval) {
+				dev_err(&client->dev,
+					"Failed to request gpio: %d\n", rval);
+				return rval;
+			}
+			core->gpio_reset = pdata->gpio_reset;
+			gpio_direction_output(core->gpio_reset, 0);
+		}
+
+		core->diversity_mode = pdata->diversity_mode;
+		memcpy(&core->pinmux, &pdata->pinmux,
+		       sizeof(struct si476x_pinmux));
+	} else {
+		dev_err(&client->dev, "No platform data provided\n");
+		return -EINVAL;
+	}
+
+	core->supplies[0].supply = "vd";
+	core->supplies[1].supply = "va";
+	core->supplies[2].supply = "vio1";
+	core->supplies[3].supply = "vio2";
+
+	rval = devm_regulator_bulk_get(&client->dev,
+				       ARRAY_SIZE(core->supplies),
+				       core->supplies);
+	if (rval) {
+		dev_err(&client->dev, "Failet to gett all of the regulators\n");
+		goto free_gpio;
+	}
+
+	mutex_init(&core->cmd_lock);
+	init_waitqueue_head(&core->command);
+	init_waitqueue_head(&core->tuning);
+
+	rval = kfifo_alloc(&core->rds_fifo,
+			   SI476X_DRIVER_RDS_FIFO_DEPTH *
+			   sizeof(struct v4l2_rds_data),
+			   GFP_KERNEL);
+	if (rval) {
+		dev_err(&client->dev, "Could not alloate the FIFO\n");
+		goto free_gpio;
+	}
+	mutex_init(&core->rds_drainer_status_lock);
+	init_waitqueue_head(&core->rds_read_queue);
+	INIT_WORK(&core->rds_fifo_drainer, si476x_core_drain_rds_fifo);
+
+	if (client->irq) {
+		rval = devm_request_threaded_irq(&client->dev,
+						 client->irq, NULL,
+						 si476x_core_interrupt,
+						 IRQF_TRIGGER_FALLING,
+						 client->name, core);
+		if (rval < 0) {
+			dev_err(&client->dev, "Could not request IRQ %d\n",
+				client->irq);
+			goto free_kfifo;
+		}
+		disable_irq(client->irq);
+		dev_dbg(&client->dev, "IRQ requested.\n");
+
+		core->rds_fifo_depth = 20;
+	} else {
+		INIT_DELAYED_WORK(&core->status_monitor,
+				  si476x_core_poll_loop);
+		dev_info(&client->dev,
+			 "No IRQ number specified, will use polling\n");
+
+		core->rds_fifo_depth = 5;
+	}
+
+	core->chip_id = id->driver_data;
+
+	rval = si476x_core_get_revision_info(core);
+	if (rval < 0) {
+		rval = -ENODEV;
+		goto free_kfifo;
+	}
+
+	cell_num = 0;
+
+	cell = &core->cells[SI476X_RADIO_CELL];
+	cell->name = "si476x-radio";
+	cell_num++;
+
+#ifdef CONFIG_SND_SOC_SI476X
+	if ((core->chip_id == SI476X_CHIP_SI4761 ||
+	     core->chip_id == SI476X_CHIP_SI4764)	&&
+	    core->pinmux.dclk == SI476X_DCLK_DAUDIO     &&
+	    core->pinmux.dfs  == SI476X_DFS_DAUDIO      &&
+	    core->pinmux.dout == SI476X_DOUT_I2S_OUTPUT &&
+	    core->pinmux.xout == SI476X_XOUT_TRISTATE) {
+		cell = &core->cells[SI476X_CODEC_CELL];
+		cell->name          = "si476x-codec";
+		cell_num++;
+	}
+#endif
+	rval = mfd_add_devices(&client->dev,
+			       (client->adapter->nr << 8) + client->addr,
+			       core->cells, cell_num,
+			       NULL, 0, NULL);
+	if (!rval)
+		return 0;
+
+free_kfifo:
+	kfifo_free(&core->rds_fifo);
+
+free_gpio:
+	if (gpio_is_valid(core->gpio_reset))
+		gpio_free(core->gpio_reset);
+
+	return rval;
+}
+
+static int si476x_core_remove(struct i2c_client *client)
+{
+	struct si476x_core *core = i2c_get_clientdata(client);
+
+	si476x_core_pronounce_dead(core);
+	mfd_remove_devices(&client->dev);
+
+	if (client->irq)
+		disable_irq(client->irq);
+	else
+		cancel_delayed_work_sync(&core->status_monitor);
+
+	kfifo_free(&core->rds_fifo);
+
+	if (gpio_is_valid(core->gpio_reset))
+		gpio_free(core->gpio_reset);
+
+	return 0;
+}
+
+
+static const struct i2c_device_id si476x_id[] = {
+	{ "si4761", SI476X_CHIP_SI4761 },
+	{ "si4764", SI476X_CHIP_SI4764 },
+	{ "si4768", SI476X_CHIP_SI4768 },
+	{ },
+};
+MODULE_DEVICE_TABLE(i2c, si476x_id);
+
+static struct i2c_driver si476x_core_driver = {
+	.driver		= {
+		.name	= "si476x-core",
+		.owner  = THIS_MODULE,
+	},
+	.probe		= si476x_core_probe,
+	.remove         = si476x_core_remove,
+	.id_table       = si476x_id,
+};
+module_i2c_driver(si476x_core_driver);
+
+
+MODULE_AUTHOR("Andrey Smirnov <andrew.smirnov@gmail.com>");
+MODULE_DESCRIPTION("Si4761/64/68 AM/FM MFD core device driver");
+MODULE_LICENSE("GPL");
-- 
cgit v1.2.3


From 379550698c1583db63ac62e62f465782f10418c2 Mon Sep 17 00:00:00 2001
From: Andrey Smirnov <andreysm@charmander.(none)>
Date: Thu, 18 Apr 2013 09:58:29 -0700
Subject: mfd: si476x: Add chip properties handling code

This patch adds code related to manipulation of the properties of
SI476X chips.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/si476x-prop.c | 241 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 241 insertions(+)
 create mode 100644 drivers/mfd/si476x-prop.c

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/si476x-prop.c b/drivers/mfd/si476x-prop.c
new file mode 100644
index 000000000000..cfeffa6e15d9
--- /dev/null
+++ b/drivers/mfd/si476x-prop.c
@@ -0,0 +1,241 @@
+/*
+ * drivers/mfd/si476x-prop.c -- Subroutines to access
+ * properties of si476x chips
+ *
+ * Copyright (C) 2012 Innovative Converged Devices(ICD)
+ * Copyright (C) 2013 Andrey Smirnov
+ *
+ * Author: Andrey Smirnov <andrew.smirnov@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+#include <linux/module.h>
+
+#include <linux/mfd/si476x-core.h>
+
+struct si476x_property_range {
+	u16 low, high;
+};
+
+static bool si476x_core_element_is_in_array(u16 element,
+					    const u16 array[],
+					    size_t size)
+{
+	int i;
+
+	for (i = 0; i < size; i++)
+		if (element == array[i])
+			return true;
+
+	return false;
+}
+
+static bool si476x_core_element_is_in_range(u16 element,
+					    const struct si476x_property_range range[],
+					    size_t size)
+{
+	int i;
+
+	for (i = 0; i < size; i++)
+		if (element <= range[i].high && element >= range[i].low)
+			return true;
+
+	return false;
+}
+
+static bool si476x_core_is_valid_property_a10(struct si476x_core *core,
+					      u16 property)
+{
+	static const u16 valid_properties[] = {
+		0x0000,
+		0x0500, 0x0501,
+		0x0600,
+		0x0709, 0x070C, 0x070D, 0x70E, 0x710,
+		0x0718,
+		0x1207, 0x1208,
+		0x2007,
+		0x2300,
+	};
+
+	static const struct si476x_property_range valid_ranges[] = {
+		{ 0x0200, 0x0203 },
+		{ 0x0300, 0x0303 },
+		{ 0x0400, 0x0404 },
+		{ 0x0700, 0x0707 },
+		{ 0x1100, 0x1102 },
+		{ 0x1200, 0x1204 },
+		{ 0x1300, 0x1306 },
+		{ 0x2000, 0x2005 },
+		{ 0x2100, 0x2104 },
+		{ 0x2106, 0x2106 },
+		{ 0x2200, 0x220E },
+		{ 0x3100, 0x3104 },
+		{ 0x3207, 0x320F },
+		{ 0x3300, 0x3304 },
+		{ 0x3500, 0x3517 },
+		{ 0x3600, 0x3617 },
+		{ 0x3700, 0x3717 },
+		{ 0x4000, 0x4003 },
+	};
+
+	return	si476x_core_element_is_in_range(property, valid_ranges,
+						ARRAY_SIZE(valid_ranges)) ||
+		si476x_core_element_is_in_array(property, valid_properties,
+						ARRAY_SIZE(valid_properties));
+}
+
+static bool si476x_core_is_valid_property_a20(struct si476x_core *core,
+					      u16 property)
+{
+	static const u16 valid_properties[] = {
+		0x071B,
+		0x1006,
+		0x2210,
+		0x3401,
+	};
+
+	static const struct si476x_property_range valid_ranges[] = {
+		{ 0x2215, 0x2219 },
+	};
+
+	return	si476x_core_is_valid_property_a10(core, property) ||
+		si476x_core_element_is_in_range(property, valid_ranges,
+						ARRAY_SIZE(valid_ranges))  ||
+		si476x_core_element_is_in_array(property, valid_properties,
+						ARRAY_SIZE(valid_properties));
+}
+
+static bool si476x_core_is_valid_property_a30(struct si476x_core *core,
+					      u16 property)
+{
+	static const u16 valid_properties[] = {
+		0x071C, 0x071D,
+		0x1007, 0x1008,
+		0x220F, 0x2214,
+		0x2301,
+		0x3105, 0x3106,
+		0x3402,
+	};
+
+	static const struct si476x_property_range valid_ranges[] = {
+		{ 0x0405, 0x0411 },
+		{ 0x2008, 0x200B },
+		{ 0x2220, 0x2223 },
+		{ 0x3100, 0x3106 },
+	};
+
+	return	si476x_core_is_valid_property_a20(core, property) ||
+		si476x_core_element_is_in_range(property, valid_ranges,
+						ARRAY_SIZE(valid_ranges)) ||
+		si476x_core_element_is_in_array(property, valid_properties,
+						ARRAY_SIZE(valid_properties));
+}
+
+typedef bool (*valid_property_pred_t) (struct si476x_core *, u16);
+
+static bool si476x_core_is_valid_property(struct si476x_core *core,
+					  u16 property)
+{
+	static const valid_property_pred_t is_valid_property[] = {
+		[SI476X_REVISION_A10] = si476x_core_is_valid_property_a10,
+		[SI476X_REVISION_A20] = si476x_core_is_valid_property_a20,
+		[SI476X_REVISION_A30] = si476x_core_is_valid_property_a30,
+	};
+
+	BUG_ON(core->revision > SI476X_REVISION_A30 ||
+	       core->revision == -1);
+	return is_valid_property[core->revision](core, property);
+}
+
+
+static bool si476x_core_is_readonly_property(struct si476x_core *core,
+					     u16 property)
+{
+	BUG_ON(core->revision > SI476X_REVISION_A30 ||
+	       core->revision == -1);
+
+	switch (core->revision) {
+	case SI476X_REVISION_A10:
+		return (property == 0x3200);
+	case SI476X_REVISION_A20:
+		return (property == 0x1006 ||
+			property == 0x2210 ||
+			property == 0x3200);
+	case SI476X_REVISION_A30:
+		return false;
+	}
+
+	return false;
+}
+
+static bool si476x_core_regmap_readable_register(struct device *dev,
+						 unsigned int reg)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct si476x_core *core = i2c_get_clientdata(client);
+
+	return si476x_core_is_valid_property(core, (u16) reg);
+
+}
+
+static bool si476x_core_regmap_writable_register(struct device *dev,
+						 unsigned int reg)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct si476x_core *core = i2c_get_clientdata(client);
+
+	return si476x_core_is_valid_property(core, (u16) reg) &&
+		!si476x_core_is_readonly_property(core, (u16) reg);
+}
+
+
+static int si476x_core_regmap_write(void *context, unsigned int reg,
+				    unsigned int val)
+{
+	return si476x_core_cmd_set_property(context, reg, val);
+}
+
+static int si476x_core_regmap_read(void *context, unsigned int reg,
+				   unsigned *val)
+{
+	struct si476x_core *core = context;
+	int err;
+
+	err = si476x_core_cmd_get_property(core, reg);
+	if (err < 0)
+		return err;
+
+	*val = err;
+
+	return 0;
+}
+
+
+static const struct regmap_config si476x_regmap_config = {
+	.reg_bits = 16,
+	.val_bits = 16,
+
+	.max_register = 0x4003,
+
+	.writeable_reg = si476x_core_regmap_writable_register,
+	.readable_reg = si476x_core_regmap_readable_register,
+
+	.reg_read = si476x_core_regmap_read,
+	.reg_write = si476x_core_regmap_write,
+
+	.cache_type = REGCACHE_RBTREE,
+};
+
+struct regmap *devm_regmap_init_si476x(struct si476x_core *core)
+{
+	return devm_regmap_init(&core->client->dev, NULL,
+				core, &si476x_regmap_config);
+}
+EXPORT_SYMBOL_GPL(devm_regmap_init_si476x);
-- 
cgit v1.2.3


From 9b8e1a5e4670b3b24c0e35c0884b4185f17fceab Mon Sep 17 00:00:00 2001
From: Andrey Smirnov <andreysm@charmander.(none)>
Date: Thu, 18 Apr 2013 09:58:30 -0700
Subject: mfd: si476x: Add header files and Kbuild plumbing

This patch adds all necessary header files and Kbuild plumbing for the
core driver for Silicon Laboratories Si476x series of AM/FM tuner
chips.

The driver as a whole is implemented as an MFD device and this patch
adds a core portion of it that provides all the necessary
functionality to the two other drivers that represent radio and audio
codec subsystems of the chip.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/Kconfig                 |  13 +
 drivers/mfd/Makefile                |   4 +
 include/linux/mfd/si476x-core.h     | 533 ++++++++++++++++++++++++++++++++++++
 include/linux/mfd/si476x-platform.h | 267 ++++++++++++++++++
 include/linux/mfd/si476x-reports.h  | 163 +++++++++++
 5 files changed, 980 insertions(+)
 create mode 100644 include/linux/mfd/si476x-core.h
 create mode 100644 include/linux/mfd/si476x-platform.h
 create mode 100644 include/linux/mfd/si476x-reports.h

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 9de05020c660..7acd863287d1 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -487,6 +487,19 @@ config MFD_SEC_CORE
 	 additional drivers must be enabled in order to use the functionality
 	 of the device
 
+config MFD_SI476X_CORE
+	tristate "Silicon Laboratories 4761/64/68 AM/FM radio."
+	depends on I2C
+	select MFD_CORE
+	select REGMAP_I2C
+	help
+	  This is the core driver for the SI476x series of AM/FM
+	  radio. This MFD driver connects the radio-si476x V4L2 module
+	  and the si476x audio codec.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called si476x-core.
+
 config MFD_SM501
 	tristate "Silicon Motion SM501"
 	 ---help---
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 067656651b02..718e94a2a9a7 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -134,6 +134,10 @@ obj-$(CONFIG_MFD_JZ4740_ADC)	+= jz4740-adc.o
 obj-$(CONFIG_MFD_TPS6586X)	+= tps6586x.o
 obj-$(CONFIG_MFD_VX855)		+= vx855.o
 obj-$(CONFIG_MFD_WL1273_CORE)	+= wl1273-core.o
+
+si476x-core-y := si476x-cmd.o si476x-prop.o si476x-i2c.o
+obj-$(CONFIG_MFD_SI476X_CORE)	+= si476x-core.o
+
 obj-$(CONFIG_MFD_CS5535)	+= cs5535-mfd.o
 obj-$(CONFIG_MFD_OMAP_USB_HOST)	+= omap-usb-host.o omap-usb-tll.o
 obj-$(CONFIG_MFD_PM8921_CORE) 	+= pm8921-core.o
diff --git a/include/linux/mfd/si476x-core.h b/include/linux/mfd/si476x-core.h
new file mode 100644
index 000000000000..ede3022c03c4
--- /dev/null
+++ b/include/linux/mfd/si476x-core.h
@@ -0,0 +1,533 @@
+/*
+ * include/media/si476x-core.h -- Common definitions for si476x core
+ * device
+ *
+ * Copyright (C) 2012 Innovative Converged Devices(ICD)
+ * Copyright (C) 2013 Andrey Smirnov
+ *
+ * Author: Andrey Smirnov <andrew.smirnov@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ */
+
+#ifndef SI476X_CORE_H
+#define SI476X_CORE_H
+
+#include <linux/kfifo.h>
+#include <linux/atomic.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+#include <linux/mutex.h>
+#include <linux/mfd/core.h>
+#include <linux/videodev2.h>
+#include <linux/regulator/consumer.h>
+
+#include <linux/mfd/si476x-platform.h>
+#include <linux/mfd/si476x-reports.h>
+
+/* Command Timeouts */
+#define SI476X_DEFAULT_TIMEOUT	100000
+#define SI476X_TIMEOUT_TUNE	700000
+#define SI476X_TIMEOUT_POWER_UP	330000
+#define SI476X_STATUS_POLL_US	0
+
+/* -------------------- si476x-i2c.c ----------------------- */
+
+enum si476x_freq_supported_chips {
+	SI476X_CHIP_SI4761 = 1,
+	SI476X_CHIP_SI4764,
+	SI476X_CHIP_SI4768,
+};
+
+enum si476x_part_revisions {
+	SI476X_REVISION_A10 = 0,
+	SI476X_REVISION_A20 = 1,
+	SI476X_REVISION_A30 = 2,
+};
+
+enum si476x_mfd_cells {
+	SI476X_RADIO_CELL = 0,
+	SI476X_CODEC_CELL,
+	SI476X_MFD_CELLS,
+};
+
+/**
+ * enum si476x_power_state - possible power state of the si476x
+ * device.
+ *
+ * @SI476X_POWER_DOWN: In this state all regulators are turned off
+ * and the reset line is pulled low. The device is completely
+ * inactive.
+ * @SI476X_POWER_UP_FULL: In this state all the power regualtors are
+ * turned on, reset line pulled high, IRQ line is enabled(polling is
+ * active for polling use scenario) and device is turned on with
+ * POWER_UP command. The device is ready to be used.
+ * @SI476X_POWER_INCONSISTENT: This state indicates that previous
+ * power down was inconsistent, meaning some of the regulators were
+ * not turned down and thus use of the device, without power-cycling
+ * is impossible.
+ */
+enum si476x_power_state {
+	SI476X_POWER_DOWN		= 0,
+	SI476X_POWER_UP_FULL		= 1,
+	SI476X_POWER_INCONSISTENT	= 2,
+};
+
+/**
+ * struct si476x_core - internal data structure representing the
+ * underlying "core" device which all the MFD cell-devices use.
+ *
+ * @client: Actual I2C client used to transfer commands to the chip.
+ * @chip_id: Last digit of the chip model(E.g. "1" for SI4761)
+ * @cells: MFD cell devices created by this driver.
+ * @cmd_lock: Mutex used to serialize all the requests to the core
+ * device. This filed should not be used directly. Instead
+ * si476x_core_lock()/si476x_core_unlock() should be used to get
+ * exclusive access to the "core" device.
+ * @users: Active users counter(Used by the radio cell)
+ * @rds_read_queue: Wait queue used to wait for RDS data.
+ * @rds_fifo: FIFO in which all the RDS data received from the chip is
+ * placed.
+ * @rds_fifo_drainer: Worker that drains on-chip RDS FIFO.
+ * @rds_drainer_is_working: Flag used for launching only one instance
+ * of the @rds_fifo_drainer.
+ * @rds_drainer_status_lock: Lock used to guard access to the
+ * @rds_drainer_is_working variable.
+ * @command: Wait queue for wainting on the command comapletion.
+ * @cts: Clear To Send flag set upon receiving first status with CTS
+ * set.
+ * @tuning: Wait queue used for wainting for tune/seek comand
+ * completion.
+ * @stc: Similar to @cts, but for the STC bit of the status value.
+ * @power_up_parameters: Parameters used as argument for POWER_UP
+ * command when the device is started.
+ * @state: Current power state of the device.
+ * @supplues: Structure containing handles to all power supplies used
+ * by the device (NULL ones are ignored).
+ * @gpio_reset: GPIO pin connectet to the RSTB pin of the chip.
+ * @pinmux: Chip's configurable pins configuration.
+ * @diversity_mode: Chips role when functioning in diversity mode.
+ * @status_monitor: Polling worker used in polling use case scenarion
+ * (when IRQ is not avalible).
+ * @revision: Chip's running firmware revision number(Used for correct
+ * command set support).
+ */
+
+struct si476x_core {
+	struct i2c_client *client;
+	struct regmap *regmap;
+	int chip_id;
+	struct mfd_cell cells[SI476X_MFD_CELLS];
+
+	struct mutex cmd_lock; /* for serializing fm radio operations */
+	atomic_t users;
+
+	wait_queue_head_t  rds_read_queue;
+	struct kfifo       rds_fifo;
+	struct work_struct rds_fifo_drainer;
+	bool               rds_drainer_is_working;
+	struct mutex       rds_drainer_status_lock;
+
+	wait_queue_head_t command;
+	atomic_t          cts;
+
+	wait_queue_head_t tuning;
+	atomic_t          stc;
+
+	struct si476x_power_up_args power_up_parameters;
+
+	enum si476x_power_state power_state;
+
+	struct regulator_bulk_data supplies[4];
+
+	int gpio_reset;
+
+	struct si476x_pinmux pinmux;
+	enum si476x_phase_diversity_mode diversity_mode;
+
+	atomic_t is_alive;
+
+	struct delayed_work status_monitor;
+#define SI476X_WORK_TO_CORE(w) container_of(to_delayed_work(w),	\
+					    struct si476x_core,	\
+					    status_monitor)
+
+	int revision;
+
+	int rds_fifo_depth;
+};
+
+static inline struct si476x_core *i2c_mfd_cell_to_core(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev->parent);
+	return i2c_get_clientdata(client);
+}
+
+
+/**
+ * si476x_core_lock() - lock the core device to get an exclusive access
+ * to it.
+ */
+static inline void si476x_core_lock(struct si476x_core *core)
+{
+	mutex_lock(&core->cmd_lock);
+}
+
+/**
+ * si476x_core_unlock() - unlock the core device to relinquish an
+ * exclusive access to it.
+ */
+static inline void si476x_core_unlock(struct si476x_core *core)
+{
+	mutex_unlock(&core->cmd_lock);
+}
+
+/* *_TUNE_FREQ family of commands accept frequency in multiples of
+    10kHz */
+static inline u16 hz_to_si476x(struct si476x_core *core, int freq)
+{
+	u16 result;
+
+	switch (core->power_up_parameters.func) {
+	default:
+	case SI476X_FUNC_FM_RECEIVER:
+		result = freq / 10000;
+		break;
+	case SI476X_FUNC_AM_RECEIVER:
+		result = freq / 1000;
+		break;
+	}
+
+	return result;
+}
+
+static inline int si476x_to_hz(struct si476x_core *core, u16 freq)
+{
+	int result;
+
+	switch (core->power_up_parameters.func) {
+	default:
+	case SI476X_FUNC_FM_RECEIVER:
+		result = freq * 10000;
+		break;
+	case SI476X_FUNC_AM_RECEIVER:
+		result = freq * 1000;
+		break;
+	}
+
+	return result;
+}
+
+/* Since the V4L2_TUNER_CAP_LOW flag is supplied, V4L2 subsystem
+ * mesures frequency in 62.5 Hz units */
+
+static inline int hz_to_v4l2(int freq)
+{
+	return (freq * 10) / 625;
+}
+
+static inline int v4l2_to_hz(int freq)
+{
+	return (freq * 625) / 10;
+}
+
+static inline u16 v4l2_to_si476x(struct si476x_core *core, int freq)
+{
+	return hz_to_si476x(core, v4l2_to_hz(freq));
+}
+
+static inline int si476x_to_v4l2(struct si476x_core *core, u16 freq)
+{
+	return hz_to_v4l2(si476x_to_hz(core, freq));
+}
+
+
+
+/**
+ * struct si476x_func_info - structure containing result of the
+ * FUNC_INFO command.
+ *
+ * @firmware.major: Firmware major number.
+ * @firmware.minor[...]: Firmware minor numbers.
+ * @patch_id:
+ * @func: Mode tuner is working in.
+ */
+struct si476x_func_info {
+	struct {
+		u8 major, minor[2];
+	} firmware;
+	u16 patch_id;
+	enum si476x_func func;
+};
+
+/**
+ * struct si476x_power_down_args - structure used to pass parameters
+ * to POWER_DOWN command
+ *
+ * @xosc: true - Power down, but leav oscillator running.
+ *        false - Full power down.
+ */
+struct si476x_power_down_args {
+	bool xosc;
+};
+
+/**
+ * enum si476x_tunemode - enum representing possible tune modes for
+ * the chip.
+ * @SI476X_TM_VALIDATED_NORMAL_TUNE: Unconditionally stay on the new
+ * channel after tune, tune status is valid.
+ * @SI476X_TM_INVALIDATED_FAST_TUNE: Unconditionally stay in the new
+ * channel after tune, tune status invalid.
+ * @SI476X_TM_VALIDATED_AF_TUNE: Jump back to previous channel if
+ * metric thresholds are not met.
+ * @SI476X_TM_VALIDATED_AF_CHECK: Unconditionally jump back to the
+ * previous channel.
+ */
+enum si476x_tunemode {
+	SI476X_TM_VALIDATED_NORMAL_TUNE = 0,
+	SI476X_TM_INVALIDATED_FAST_TUNE = 1,
+	SI476X_TM_VALIDATED_AF_TUNE     = 2,
+	SI476X_TM_VALIDATED_AF_CHECK    = 3,
+};
+
+/**
+ * enum si476x_smoothmetrics - enum containing the possible setting fo
+ * audio transitioning of the chip
+ * @SI476X_SM_INITIALIZE_AUDIO: Initialize audio state to match this
+ * new channel
+ * @SI476X_SM_TRANSITION_AUDIO: Transition audio state from previous
+ * channel values to the new values
+ */
+enum si476x_smoothmetrics {
+	SI476X_SM_INITIALIZE_AUDIO = 0,
+	SI476X_SM_TRANSITION_AUDIO = 1,
+};
+
+/**
+ * struct si476x_rds_status_report - the structure representing the
+ * response to 'FM_RD_STATUS' command
+ * @rdstpptyint: Traffic program flag(TP) and/or program type(PTY)
+ * code has changed.
+ * @rdspiint: Program indentifiaction(PI) code has changed.
+ * @rdssyncint: RDS synchronization has changed.
+ * @rdsfifoint: RDS was received and the RDS FIFO has at least
+ * 'FM_RDS_INTERRUPT_FIFO_COUNT' elements in it.
+ * @tpptyvalid: TP flag and PTY code are valid falg.
+ * @pivalid: PI code is valid flag.
+ * @rdssync: RDS is currently synchronized.
+ * @rdsfifolost: On or more RDS groups have been lost/discarded flag.
+ * @tp: Current channel's TP flag.
+ * @pty: Current channel's PTY code.
+ * @pi: Current channel's PI code.
+ * @rdsfifoused: Number of blocks remaining in the RDS FIFO (0 if
+ * empty).
+ */
+struct si476x_rds_status_report {
+	bool rdstpptyint, rdspiint, rdssyncint, rdsfifoint;
+	bool tpptyvalid, pivalid, rdssync, rdsfifolost;
+	bool tp;
+
+	u8 pty;
+	u16 pi;
+
+	u8 rdsfifoused;
+	u8 ble[4];
+
+	struct v4l2_rds_data rds[4];
+};
+
+struct si476x_rsq_status_args {
+	bool primary;
+	bool rsqack;
+	bool attune;
+	bool cancel;
+	bool stcack;
+};
+
+enum si476x_injside {
+	SI476X_INJSIDE_AUTO	= 0,
+	SI476X_INJSIDE_LOW	= 1,
+	SI476X_INJSIDE_HIGH	= 2,
+};
+
+struct si476x_tune_freq_args {
+	bool zifsr;
+	bool hd;
+	enum si476x_injside injside;
+	int freq;
+	enum si476x_tunemode tunemode;
+	enum si476x_smoothmetrics smoothmetrics;
+	int antcap;
+};
+
+int  si476x_core_stop(struct si476x_core *, bool);
+int  si476x_core_start(struct si476x_core *, bool);
+int  si476x_core_set_power_state(struct si476x_core *, enum si476x_power_state);
+bool si476x_core_has_am(struct si476x_core *);
+bool si476x_core_has_diversity(struct si476x_core *);
+bool si476x_core_is_a_secondary_tuner(struct si476x_core *);
+bool si476x_core_is_a_primary_tuner(struct si476x_core *);
+bool si476x_core_is_in_am_receiver_mode(struct si476x_core *core);
+bool si476x_core_is_powered_up(struct si476x_core *core);
+
+enum si476x_i2c_type {
+	SI476X_I2C_SEND,
+	SI476X_I2C_RECV
+};
+
+int si476x_core_i2c_xfer(struct si476x_core *,
+			 enum si476x_i2c_type,
+			 char *, int);
+
+
+/* -------------------- si476x-cmd.c ----------------------- */
+
+int si476x_core_cmd_func_info(struct si476x_core *, struct si476x_func_info *);
+int si476x_core_cmd_set_property(struct si476x_core *, u16, u16);
+int si476x_core_cmd_get_property(struct si476x_core *, u16);
+int si476x_core_cmd_dig_audio_pin_cfg(struct si476x_core *,
+				      enum si476x_dclk_config,
+				      enum si476x_dfs_config,
+				      enum si476x_dout_config,
+				      enum si476x_xout_config);
+int si476x_core_cmd_zif_pin_cfg(struct si476x_core *,
+				enum si476x_iqclk_config,
+				enum si476x_iqfs_config,
+				enum si476x_iout_config,
+				enum si476x_qout_config);
+int si476x_core_cmd_ic_link_gpo_ctl_pin_cfg(struct si476x_core *,
+					    enum si476x_icin_config,
+					    enum si476x_icip_config,
+					    enum si476x_icon_config,
+					    enum si476x_icop_config);
+int si476x_core_cmd_ana_audio_pin_cfg(struct si476x_core *,
+				      enum si476x_lrout_config);
+int si476x_core_cmd_intb_pin_cfg(struct si476x_core *, enum si476x_intb_config,
+				 enum si476x_a1_config);
+int si476x_core_cmd_fm_seek_start(struct si476x_core *, bool, bool);
+int si476x_core_cmd_am_seek_start(struct si476x_core *, bool, bool);
+int si476x_core_cmd_fm_rds_status(struct si476x_core *, bool, bool, bool,
+				  struct si476x_rds_status_report *);
+int si476x_core_cmd_fm_rds_blockcount(struct si476x_core *, bool,
+				      struct si476x_rds_blockcount_report *);
+int si476x_core_cmd_fm_tune_freq(struct si476x_core *,
+				 struct si476x_tune_freq_args *);
+int si476x_core_cmd_am_tune_freq(struct si476x_core *,
+				 struct si476x_tune_freq_args *);
+int si476x_core_cmd_am_rsq_status(struct si476x_core *,
+				  struct si476x_rsq_status_args *,
+				  struct si476x_rsq_status_report *);
+int si476x_core_cmd_fm_rsq_status(struct si476x_core *,
+				  struct si476x_rsq_status_args *,
+				  struct si476x_rsq_status_report *);
+int si476x_core_cmd_power_up(struct si476x_core *,
+			     struct si476x_power_up_args *);
+int si476x_core_cmd_power_down(struct si476x_core *,
+			       struct si476x_power_down_args *);
+int si476x_core_cmd_fm_phase_div_status(struct si476x_core *);
+int si476x_core_cmd_fm_phase_diversity(struct si476x_core *,
+				       enum si476x_phase_diversity_mode);
+
+int si476x_core_cmd_fm_acf_status(struct si476x_core *,
+				  struct si476x_acf_status_report *);
+int si476x_core_cmd_am_acf_status(struct si476x_core *,
+				  struct si476x_acf_status_report *);
+int si476x_core_cmd_agc_status(struct si476x_core *,
+			       struct si476x_agc_status_report *);
+
+enum si476x_power_grid_type {
+	SI476X_POWER_GRID_50HZ = 0,
+	SI476X_POWER_GRID_60HZ,
+};
+
+/* Properties  */
+
+enum si476x_interrupt_flags {
+	SI476X_STCIEN = (1 << 0),
+	SI476X_ACFIEN = (1 << 1),
+	SI476X_RDSIEN = (1 << 2),
+	SI476X_RSQIEN = (1 << 3),
+
+	SI476X_ERRIEN = (1 << 6),
+	SI476X_CTSIEN = (1 << 7),
+
+	SI476X_STCREP = (1 << 8),
+	SI476X_ACFREP = (1 << 9),
+	SI476X_RDSREP = (1 << 10),
+	SI476X_RSQREP = (1 << 11),
+};
+
+enum si476x_rdsint_sources {
+	SI476X_RDSTPPTY = (1 << 4),
+	SI476X_RDSPI    = (1 << 3),
+	SI476X_RDSSYNC	= (1 << 1),
+	SI476X_RDSRECV	= (1 << 0),
+};
+
+enum si476x_status_response_bits {
+	SI476X_CTS	  = (1 << 7),
+	SI476X_ERR	  = (1 << 6),
+	/* Status response for WB receiver */
+	SI476X_WB_ASQ_INT = (1 << 4),
+	SI476X_RSQ_INT    = (1 << 3),
+	/* Status response for FM receiver */
+	SI476X_FM_RDS_INT = (1 << 2),
+	SI476X_ACF_INT    = (1 << 1),
+	SI476X_STC_INT    = (1 << 0),
+};
+
+/* -------------------- si476x-prop.c ----------------------- */
+
+enum si476x_common_receiver_properties {
+	SI476X_PROP_INT_CTL_ENABLE			= 0x0000,
+	SI476X_PROP_DIGITAL_IO_INPUT_SAMPLE_RATE	= 0x0200,
+	SI476X_PROP_DIGITAL_IO_INPUT_FORMAT		= 0x0201,
+	SI476X_PROP_DIGITAL_IO_OUTPUT_SAMPLE_RATE	= 0x0202,
+	SI476X_PROP_DIGITAL_IO_OUTPUT_FORMAT		= 0x0203,
+
+	SI476X_PROP_SEEK_BAND_BOTTOM			= 0x1100,
+	SI476X_PROP_SEEK_BAND_TOP			= 0x1101,
+	SI476X_PROP_SEEK_FREQUENCY_SPACING		= 0x1102,
+
+	SI476X_PROP_VALID_MAX_TUNE_ERROR		= 0x2000,
+	SI476X_PROP_VALID_SNR_THRESHOLD			= 0x2003,
+	SI476X_PROP_VALID_RSSI_THRESHOLD		= 0x2004,
+};
+
+enum si476x_am_receiver_properties {
+	SI476X_PROP_AUDIO_PWR_LINE_FILTER		= 0x0303,
+};
+
+enum si476x_fm_receiver_properties {
+	SI476X_PROP_AUDIO_DEEMPHASIS			= 0x0302,
+
+	SI476X_PROP_FM_RDS_INTERRUPT_SOURCE		= 0x4000,
+	SI476X_PROP_FM_RDS_INTERRUPT_FIFO_COUNT		= 0x4001,
+	SI476X_PROP_FM_RDS_CONFIG			= 0x4002,
+};
+
+enum si476x_prop_audio_pwr_line_filter_bits {
+	SI476X_PROP_PWR_HARMONICS_MASK	= 0b0000000000011111,
+	SI476X_PROP_PWR_GRID_MASK	= 0b0000000100000000,
+	SI476X_PROP_PWR_ENABLE_MASK	= 0b0000001000000000,
+	SI476X_PROP_PWR_GRID_50HZ	= 0b0000000000000000,
+	SI476X_PROP_PWR_GRID_60HZ	= 0b0000000100000000,
+};
+
+enum si476x_prop_fm_rds_config_bits {
+	SI476X_PROP_RDSEN_MASK	= 0x1,
+	SI476X_PROP_RDSEN	= 0x1,
+};
+
+
+struct regmap *devm_regmap_init_si476x(struct si476x_core *);
+
+#endif	/* SI476X_CORE_H */
diff --git a/include/linux/mfd/si476x-platform.h b/include/linux/mfd/si476x-platform.h
new file mode 100644
index 000000000000..88bb93b7a9d5
--- /dev/null
+++ b/include/linux/mfd/si476x-platform.h
@@ -0,0 +1,267 @@
+/*
+ * include/media/si476x-platform.h -- Platform data specific definitions
+ *
+ * Copyright (C) 2013 Andrey Smirnov
+ *
+ * Author: Andrey Smirnov <andrew.smirnov@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ */
+
+#ifndef __SI476X_PLATFORM_H__
+#define __SI476X_PLATFORM_H__
+
+/* It is possible to select one of the four adresses using pins A0
+ * and A1 on SI476x */
+#define SI476X_I2C_ADDR_1	0x60
+#define SI476X_I2C_ADDR_2	0x61
+#define SI476X_I2C_ADDR_3	0x62
+#define SI476X_I2C_ADDR_4	0x63
+
+enum si476x_iqclk_config {
+	SI476X_IQCLK_NOOP = 0,
+	SI476X_IQCLK_TRISTATE = 1,
+	SI476X_IQCLK_IQ = 21,
+};
+enum si476x_iqfs_config {
+	SI476X_IQFS_NOOP = 0,
+	SI476X_IQFS_TRISTATE = 1,
+	SI476X_IQFS_IQ = 21,
+};
+enum si476x_iout_config {
+	SI476X_IOUT_NOOP = 0,
+	SI476X_IOUT_TRISTATE = 1,
+	SI476X_IOUT_OUTPUT = 22,
+};
+enum si476x_qout_config {
+	SI476X_QOUT_NOOP = 0,
+	SI476X_QOUT_TRISTATE = 1,
+	SI476X_QOUT_OUTPUT = 22,
+};
+
+enum si476x_dclk_config {
+	SI476X_DCLK_NOOP      = 0,
+	SI476X_DCLK_TRISTATE  = 1,
+	SI476X_DCLK_DAUDIO    = 10,
+};
+
+enum si476x_dfs_config {
+	SI476X_DFS_NOOP      = 0,
+	SI476X_DFS_TRISTATE  = 1,
+	SI476X_DFS_DAUDIO    = 10,
+};
+
+enum si476x_dout_config {
+	SI476X_DOUT_NOOP       = 0,
+	SI476X_DOUT_TRISTATE   = 1,
+	SI476X_DOUT_I2S_OUTPUT = 12,
+	SI476X_DOUT_I2S_INPUT  = 13,
+};
+
+enum si476x_xout_config {
+	SI476X_XOUT_NOOP        = 0,
+	SI476X_XOUT_TRISTATE    = 1,
+	SI476X_XOUT_I2S_INPUT   = 13,
+	SI476X_XOUT_MODE_SELECT = 23,
+};
+
+enum si476x_icin_config {
+	SI476X_ICIN_NOOP	= 0,
+	SI476X_ICIN_TRISTATE	= 1,
+	SI476X_ICIN_GPO1_HIGH	= 2,
+	SI476X_ICIN_GPO1_LOW	= 3,
+	SI476X_ICIN_IC_LINK	= 30,
+};
+
+enum si476x_icip_config {
+	SI476X_ICIP_NOOP	= 0,
+	SI476X_ICIP_TRISTATE	= 1,
+	SI476X_ICIP_GPO2_HIGH	= 2,
+	SI476X_ICIP_GPO2_LOW	= 3,
+	SI476X_ICIP_IC_LINK	= 30,
+};
+
+enum si476x_icon_config {
+	SI476X_ICON_NOOP	= 0,
+	SI476X_ICON_TRISTATE	= 1,
+	SI476X_ICON_I2S		= 10,
+	SI476X_ICON_IC_LINK	= 30,
+};
+
+enum si476x_icop_config {
+	SI476X_ICOP_NOOP	= 0,
+	SI476X_ICOP_TRISTATE	= 1,
+	SI476X_ICOP_I2S		= 10,
+	SI476X_ICOP_IC_LINK	= 30,
+};
+
+
+enum si476x_lrout_config {
+	SI476X_LROUT_NOOP	= 0,
+	SI476X_LROUT_TRISTATE	= 1,
+	SI476X_LROUT_AUDIO	= 2,
+	SI476X_LROUT_MPX	= 3,
+};
+
+
+enum si476x_intb_config {
+	SI476X_INTB_NOOP     = 0,
+	SI476X_INTB_TRISTATE = 1,
+	SI476X_INTB_DAUDIO   = 10,
+	SI476X_INTB_IRQ      = 40,
+};
+
+enum si476x_a1_config {
+	SI476X_A1_NOOP     = 0,
+	SI476X_A1_TRISTATE = 1,
+	SI476X_A1_IRQ      = 40,
+};
+
+
+struct si476x_pinmux {
+	enum si476x_dclk_config  dclk;
+	enum si476x_dfs_config   dfs;
+	enum si476x_dout_config  dout;
+	enum si476x_xout_config  xout;
+
+	enum si476x_iqclk_config iqclk;
+	enum si476x_iqfs_config  iqfs;
+	enum si476x_iout_config  iout;
+	enum si476x_qout_config  qout;
+
+	enum si476x_icin_config  icin;
+	enum si476x_icip_config  icip;
+	enum si476x_icon_config  icon;
+	enum si476x_icop_config  icop;
+
+	enum si476x_lrout_config lrout;
+
+	enum si476x_intb_config  intb;
+	enum si476x_a1_config    a1;
+};
+
+enum si476x_ibias6x {
+	SI476X_IBIAS6X_OTHER			= 0,
+	SI476X_IBIAS6X_RCVR1_NON_4MHZ_CLK	= 1,
+};
+
+enum si476x_xstart {
+	SI476X_XSTART_MULTIPLE_TUNER	= 0x11,
+	SI476X_XSTART_NORMAL		= 0x77,
+};
+
+enum si476x_freq {
+	SI476X_FREQ_4_MHZ		= 0,
+	SI476X_FREQ_37P209375_MHZ	= 1,
+	SI476X_FREQ_36P4_MHZ		= 2,
+	SI476X_FREQ_37P8_MHZ		=  3,
+};
+
+enum si476x_xmode {
+	SI476X_XMODE_CRYSTAL_RCVR1	= 1,
+	SI476X_XMODE_EXT_CLOCK		= 2,
+	SI476X_XMODE_CRYSTAL_RCVR2_3	= 3,
+};
+
+enum si476x_xbiashc {
+	SI476X_XBIASHC_SINGLE_RECEIVER = 0,
+	SI476X_XBIASHC_MULTIPLE_RECEIVER = 1,
+};
+
+enum si476x_xbias {
+	SI476X_XBIAS_RCVR2_3	= 0,
+	SI476X_XBIAS_4MHZ_RCVR1 = 3,
+	SI476X_XBIAS_RCVR1	= 7,
+};
+
+enum si476x_func {
+	SI476X_FUNC_BOOTLOADER	= 0,
+	SI476X_FUNC_FM_RECEIVER = 1,
+	SI476X_FUNC_AM_RECEIVER = 2,
+	SI476X_FUNC_WB_RECEIVER = 3,
+};
+
+
+/**
+ * @xcload: Selects the amount of additional on-chip capacitance to
+ *          be connected between XTAL1 and gnd and between XTAL2 and
+ *          GND. One half of the capacitance value shown here is the
+ *          additional load capacitance presented to the xtal. The
+ *          minimum step size is 0.277 pF. Recommended value is 0x28
+ *          but it will be layout dependent. Range is 0–0x3F i.e.
+ *          (0–16.33 pF)
+ * @ctsien: enable CTSINT(interrupt request when CTS condition
+ *          arises) when set
+ * @intsel: when set A1 pin becomes the interrupt pin; otherwise,
+ *          INTB is the interrupt pin
+ * @func:   selects the boot function of the device. I.e.
+ *          SI476X_BOOTLOADER  - Boot loader
+ *          SI476X_FM_RECEIVER - FM receiver
+ *          SI476X_AM_RECEIVER - AM receiver
+ *          SI476X_WB_RECEIVER - Weatherband receiver
+ * @freq:   oscillator's crystal frequency:
+ *          SI476X_XTAL_37P209375_MHZ - 37.209375 Mhz
+ *          SI476X_XTAL_36P4_MHZ      - 36.4 Mhz
+ *          SI476X_XTAL_37P8_MHZ      - 37.8 Mhz
+ */
+struct si476x_power_up_args {
+	enum si476x_ibias6x ibias6x;
+	enum si476x_xstart  xstart;
+	u8   xcload;
+	bool fastboot;
+	enum si476x_xbiashc xbiashc;
+	enum si476x_xbias   xbias;
+	enum si476x_func    func;
+	enum si476x_freq    freq;
+	enum si476x_xmode   xmode;
+};
+
+
+/**
+ * enum si476x_phase_diversity_mode - possbile phase diversity modes
+ * for SI4764/5/6/7 chips.
+ *
+ * @SI476X_PHDIV_DISABLED:		Phase diversity feature is
+ *					disabled.
+ * @SI476X_PHDIV_PRIMARY_COMBINING:	Tuner works as a primary tuner
+ *					in combination with a
+ *					secondary one.
+ * @SI476X_PHDIV_PRIMARY_ANTENNA:	Tuner works as a primary tuner
+ *					using only its own antenna.
+ * @SI476X_PHDIV_SECONDARY_ANTENNA:	Tuner works as a primary tuner
+ *					usning seconary tuner's antenna.
+ * @SI476X_PHDIV_SECONDARY_COMBINING:	Tuner works as a secondary
+ *					tuner in combination with the
+ *					primary one.
+ */
+enum si476x_phase_diversity_mode {
+	SI476X_PHDIV_DISABLED			= 0,
+	SI476X_PHDIV_PRIMARY_COMBINING		= 1,
+	SI476X_PHDIV_PRIMARY_ANTENNA		= 2,
+	SI476X_PHDIV_SECONDARY_ANTENNA		= 3,
+	SI476X_PHDIV_SECONDARY_COMBINING	= 5,
+};
+
+
+/*
+ * Platform dependent definition
+ */
+struct si476x_platform_data {
+	int gpio_reset; /* < 0 if not used */
+
+	struct si476x_power_up_args power_up_parameters;
+	enum si476x_phase_diversity_mode diversity_mode;
+
+	struct si476x_pinmux pinmux;
+};
+
+
+#endif /* __SI476X_PLATFORM_H__ */
diff --git a/include/linux/mfd/si476x-reports.h b/include/linux/mfd/si476x-reports.h
new file mode 100644
index 000000000000..e0b9455a79c0
--- /dev/null
+++ b/include/linux/mfd/si476x-reports.h
@@ -0,0 +1,163 @@
+/*
+ * include/media/si476x-platform.h -- Definitions of the data formats
+ * returned by debugfs hooks
+ *
+ * Copyright (C) 2013 Andrey Smirnov
+ *
+ * Author: Andrey Smirnov <andrew.smirnov@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ */
+
+#ifndef __SI476X_REPORTS_H__
+#define __SI476X_REPORTS_H__
+
+/**
+ * struct si476x_rsq_status - structure containing received signal
+ * quality
+ * @multhint:   Multipath Detect High.
+ *              true  - Indicatedes that the value is below
+ *                      FM_RSQ_MULTIPATH_HIGH_THRESHOLD
+ *              false - Indicatedes that the value is above
+ *                      FM_RSQ_MULTIPATH_HIGH_THRESHOLD
+ * @multlint:   Multipath Detect Low.
+ *              true  - Indicatedes that the value is below
+ *                      FM_RSQ_MULTIPATH_LOW_THRESHOLD
+ *              false - Indicatedes that the value is above
+ *                      FM_RSQ_MULTIPATH_LOW_THRESHOLD
+ * @snrhint:    SNR Detect High.
+ *              true  - Indicatedes that the value is below
+ *                      FM_RSQ_SNR_HIGH_THRESHOLD
+ *              false - Indicatedes that the value is above
+ *                      FM_RSQ_SNR_HIGH_THRESHOLD
+ * @snrlint:    SNR Detect Low.
+ *              true  - Indicatedes that the value is below
+ *                      FM_RSQ_SNR_LOW_THRESHOLD
+ *              false - Indicatedes that the value is above
+ *                      FM_RSQ_SNR_LOW_THRESHOLD
+ * @rssihint:   RSSI Detect High.
+ *              true  - Indicatedes that the value is below
+ *                      FM_RSQ_RSSI_HIGH_THRESHOLD
+ *              false - Indicatedes that the value is above
+ *                      FM_RSQ_RSSI_HIGH_THRESHOLD
+ * @rssilint:   RSSI Detect Low.
+ *              true  - Indicatedes that the value is below
+ *                      FM_RSQ_RSSI_LOW_THRESHOLD
+ *              false - Indicatedes that the value is above
+ *                      FM_RSQ_RSSI_LOW_THRESHOLD
+ * @bltf:       Band Limit.
+ *              Set if seek command hits the band limit or wrapped to
+ *              the original frequency.
+ * @snr_ready:  SNR measurement in progress.
+ * @rssiready:  RSSI measurement in progress.
+ * @afcrl:      Set if FREQOFF >= MAX_TUNE_ERROR
+ * @valid:      Set if the channel is valid
+ *               rssi < FM_VALID_RSSI_THRESHOLD
+ *               snr  < FM_VALID_SNR_THRESHOLD
+ *               tune_error < FM_VALID_MAX_TUNE_ERROR
+ * @readfreq:   Current tuned frequency.
+ * @freqoff:    Signed frequency offset.
+ * @rssi:       Received Signal Strength Indicator(dBuV).
+ * @snr:        RF SNR Indicator(dB).
+ * @lassi:
+ * @hassi:      Low/High side Adjacent(100 kHz) Channel Strength Indicator
+ * @mult:       Multipath indicator
+ * @dev:        Who knows? But values may vary.
+ * @readantcap: Antenna tuning capacity value.
+ * @assi:       Adjacent Channel(+/- 200kHz) Strength Indicator
+ * @usn:        Ultrasonic Noise Inticator in -DBFS
+ */
+struct si476x_rsq_status_report {
+	__u8 multhint, multlint;
+	__u8 snrhint,  snrlint;
+	__u8 rssihint, rssilint;
+	__u8 bltf;
+	__u8 snr_ready;
+	__u8 rssiready;
+	__u8 injside;
+	__u8 afcrl;
+	__u8 valid;
+
+	__u16 readfreq;
+	__s8  freqoff;
+	__s8  rssi;
+	__s8  snr;
+	__s8  issi;
+	__s8  lassi, hassi;
+	__s8  mult;
+	__u8  dev;
+	__u16 readantcap;
+	__s8  assi;
+	__s8  usn;
+
+	__u8 pilotdev;
+	__u8 rdsdev;
+	__u8 assidev;
+	__u8 strongdev;
+	__u16 rdspi;
+} __packed;
+
+/**
+ * si476x_acf_status_report - ACF report results
+ *
+ * @blend_int: If set, indicates that stereo separation has crossed
+ * below the blend threshold as set by FM_ACF_BLEND_THRESHOLD
+ * @hblend_int: If set, indicates that HiBlend cutoff frequency is
+ * lower than threshold as set by FM_ACF_HBLEND_THRESHOLD
+ * @hicut_int:  If set, indicates that HiCut cutoff frequency is lower
+ * than the threshold set by ACF_
+
+ */
+struct si476x_acf_status_report {
+	__u8 blend_int;
+	__u8 hblend_int;
+	__u8 hicut_int;
+	__u8 chbw_int;
+	__u8 softmute_int;
+	__u8 smute;
+	__u8 smattn;
+	__u8 chbw;
+	__u8 hicut;
+	__u8 hiblend;
+	__u8 pilot;
+	__u8 stblend;
+} __packed;
+
+enum si476x_fmagc {
+	SI476X_FMAGC_10K_OHM	= 0,
+	SI476X_FMAGC_800_OHM	= 1,
+	SI476X_FMAGC_400_OHM	= 2,
+	SI476X_FMAGC_200_OHM	= 4,
+	SI476X_FMAGC_100_OHM	= 8,
+	SI476X_FMAGC_50_OHM	= 16,
+	SI476X_FMAGC_25_OHM	= 32,
+	SI476X_FMAGC_12P5_OHM	= 64,
+	SI476X_FMAGC_6P25_OHM	= 128,
+};
+
+struct si476x_agc_status_report {
+	__u8 mxhi;
+	__u8 mxlo;
+	__u8 lnahi;
+	__u8 lnalo;
+	__u8 fmagc1;
+	__u8 fmagc2;
+	__u8 pgagain;
+	__u8 fmwblang;
+} __packed;
+
+struct si476x_rds_blockcount_report {
+	__u16 expected;
+	__u16 received;
+	__u16 uncorrectable;
+} __packed;
+
+#endif  /* __SI476X_REPORTS_H__ */
-- 
cgit v1.2.3


From 4adedc57e0fd2a6efa6a7d84405b8d5c2a956c3d Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Fri, 19 Apr 2013 18:40:05 +0200
Subject: mfd: si476x: Fix i2c warning
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

drivers/mfd/si476x-i2c.c: In function ‘si476x_core_drain_rds_fifo’:
drivers/mfd/si476x-i2c.c:391:4: warning: field width specifier ‘*’ expects
+argument of type ‘int’, but argument 4 has type ‘long unsigned int’ [-Wformat]

Acked-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/si476x-i2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/si476x-i2c.c b/drivers/mfd/si476x-i2c.c
index 118c6b13d8cb..f5bc8e4bd4bf 100644
--- a/drivers/mfd/si476x-i2c.c
+++ b/drivers/mfd/si476x-i2c.c
@@ -389,7 +389,7 @@ static void si476x_core_drain_rds_fifo(struct work_struct *work)
 			kfifo_in(&core->rds_fifo, report.rds,
 				 sizeof(report.rds));
 			dev_dbg(&core->client->dev, "RDS data:\n %*ph\n",
-				sizeof(report.rds), report.rds);
+				(int)sizeof(report.rds), report.rds);
 		}
 		dev_dbg(&core->client->dev, "Drrrrained!\n");
 		wake_up_interruptible(&core->rds_read_queue);
-- 
cgit v1.2.3


From 8bf874a474f17e2d0fca13456e773a11fa4715ca Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Tue, 23 Apr 2013 18:30:52 +0200
Subject: mfd: ab8500: Export ab8500_gpadc_sw_hw_convert properly

Apparently the ab8500_gpadc_sw_hw_convert function got renamed
from ab8500_gpadc_convert to ab8500_gpadc_sw_hw_convert in
commit 734823462 "mfd: ab8500-gpadc: Add gpadc hw conversion",
but the export for this function did not get changed at the
same time, causing this allyesconfig error:

ERROR: "ab8500_gpadc_sw_hw_convert" [drivers/hwmon/ab8500.ko] undefined!

This patch fixes the export.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: M'boumba Cedric Madianga <cedric.madianga@stericsson.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Mattias WALLIN <mattias.wallin@stericsson.com>
Cc: Michel JAOUEN <michel.jaouen@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/ab8500-gpadc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/ab8500-gpadc.c b/drivers/mfd/ab8500-gpadc.c
index 65f72284185d..5e65b28a5d09 100644
--- a/drivers/mfd/ab8500-gpadc.c
+++ b/drivers/mfd/ab8500-gpadc.c
@@ -332,7 +332,7 @@ if (ad_value < 0) {
 
 	return voltage;
 }
-EXPORT_SYMBOL(ab8500_gpadc_convert);
+EXPORT_SYMBOL(ab8500_gpadc_sw_hw_convert);
 
 /**
  * ab8500_gpadc_read_raw() - gpadc read
-- 
cgit v1.2.3


From 367764a4d1c8dfbf3e24bb0ffbc5eb8c5d5bf6eb Mon Sep 17 00:00:00 2001
From: Pawel Moll <pawel.moll@arm.com>
Date: Thu, 25 Apr 2013 18:14:51 +0100
Subject: mfd: vexpress: Handle pending config transactions

The config transactions "scheduler" was hopelessly broken,
repeating completed transaction instead of picking up
next pending one.

Fixed now. Also improved debug messages.

Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Reviewed-by: Jon Medhurst <tixy@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/vexpress-config.c | 35 +++++++++++++++++++++--------------
 1 file changed, 21 insertions(+), 14 deletions(-)

(limited to 'drivers/mfd')

diff --git a/drivers/mfd/vexpress-config.c b/drivers/mfd/vexpress-config.c
index 3c1723aa6225..84ce6b9daa3d 100644
--- a/drivers/mfd/vexpress-config.c
+++ b/drivers/mfd/vexpress-config.c
@@ -184,13 +184,14 @@ static int vexpress_config_schedule(struct vexpress_config_trans *trans)
 
 	spin_lock_irqsave(&bridge->transactions_lock, flags);
 
-	vexpress_config_dump_trans("Executing", trans);
-
-	if (list_empty(&bridge->transactions))
+	if (list_empty(&bridge->transactions)) {
+		vexpress_config_dump_trans("Executing", trans);
 		status = bridge->info->func_exec(trans->func->func,
 				trans->offset, trans->write, trans->data);
-	else
+	} else {
+		vexpress_config_dump_trans("Queuing", trans);
 		status = VEXPRESS_CONFIG_STATUS_WAIT;
+	}
 
 	switch (status) {
 	case VEXPRESS_CONFIG_STATUS_DONE:
@@ -212,25 +213,31 @@ void vexpress_config_complete(struct vexpress_config_bridge *bridge,
 {
 	struct vexpress_config_trans *trans;
 	unsigned long flags;
+	const char *message = "Completed";
 
 	spin_lock_irqsave(&bridge->transactions_lock, flags);
 
 	trans = list_first_entry(&bridge->transactions,
 			struct vexpress_config_trans, list);
-	vexpress_config_dump_trans("Completed", trans);
-
 	trans->status = status;
-	list_del(&trans->list);
 
-	if (!list_empty(&bridge->transactions)) {
-		vexpress_config_dump_trans("Pending", trans);
+	do {
+		vexpress_config_dump_trans(message, trans);
+		list_del(&trans->list);
+		complete(&trans->completion);
 
-		bridge->info->func_exec(trans->func->func, trans->offset,
-				trans->write, trans->data);
-	}
-	spin_unlock_irqrestore(&bridge->transactions_lock, flags);
+		if (list_empty(&bridge->transactions))
+			break;
+
+		trans = list_first_entry(&bridge->transactions,
+				struct vexpress_config_trans, list);
+		vexpress_config_dump_trans("Executing pending", trans);
+		trans->status = bridge->info->func_exec(trans->func->func,
+				trans->offset, trans->write, trans->data);
+		message = "Finished pending";
+	} while (trans->status == VEXPRESS_CONFIG_STATUS_DONE);
 
-	complete(&trans->completion);
+	spin_unlock_irqrestore(&bridge->transactions_lock, flags);
 }
 EXPORT_SYMBOL(vexpress_config_complete);
 
-- 
cgit v1.2.3