From b7e79329c4e34d63cd374e603ece91f2b2c3331e Mon Sep 17 00:00:00 2001
From: Martin Kepplinger <martink@posteo.de>
Date: Mon, 6 Jul 2015 15:52:21 -0700
Subject: Input: bma150 - use sign_extend32() for sign extending

Despite it's name, sign_extend32() is used for 16 bit values aswell.

Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/misc/bma150.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/input/misc/bma150.c b/drivers/input/misc/bma150.c
index b36831c828d3..c2780493b0ed 100644
--- a/drivers/input/misc/bma150.c
+++ b/drivers/input/misc/bma150.c
@@ -333,10 +333,9 @@ static void bma150_report_xyz(struct bma150_data *bma150)
 	y = ((0xc0 & data[2]) >> 6) | (data[3] << 2);
 	z = ((0xc0 & data[4]) >> 6) | (data[5] << 2);
 
-	/* sign extension */
-	x = (s16) (x << 6) >> 6;
-	y = (s16) (y << 6) >> 6;
-	z = (s16) (z << 6) >> 6;
+	x = sign_extend32(x, 9);
+	y = sign_extend32(y, 9);
+	z = sign_extend32(z, 9);
 
 	input_report_abs(bma150->input, ABS_X, x);
 	input_report_abs(bma150->input, ABS_Y, y);
-- 
cgit v1.2.3


From 2d53809594afaf2ae66a90a3142c1b702fd3bcea Mon Sep 17 00:00:00 2001
From: Dirk Behme <dirk.behme@de.bosch.com>
Date: Mon, 6 Jul 2015 15:57:44 -0700
Subject: Input: zforce_ts - convert to use the gpiod interface

Use the new GPIO descriptor interface to handle the zForce GPIOs.
This simplifies the code and allows transparently handle GPIO polarity, as
specified in device tree data.

Also switch to using gpio_{set|get}_value_cansleep() since none of the
callers is in atomic context and cansleep variant allows more GPIO
controllers to be used with the touchscreen.

Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/zforce_ts.c   | 58 +++++++++++++++++----------------
 include/linux/platform_data/zforce_ts.h |  3 --
 2 files changed, 30 insertions(+), 31 deletions(-)

diff --git a/drivers/input/touchscreen/zforce_ts.c b/drivers/input/touchscreen/zforce_ts.c
index f58a196521a9..c4cffcfb03d3 100644
--- a/drivers/input/touchscreen/zforce_ts.c
+++ b/drivers/input/touchscreen/zforce_ts.c
@@ -24,14 +24,13 @@
 #include <linux/interrupt.h>
 #include <linux/i2c.h>
 #include <linux/delay.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/device.h>
 #include <linux/sysfs.h>
 #include <linux/input/mt.h>
 #include <linux/platform_data/zforce_ts.h>
 #include <linux/regulator/consumer.h>
 #include <linux/of.h>
-#include <linux/of_gpio.h>
 
 #define WAIT_TIMEOUT		msecs_to_jiffies(1000)
 
@@ -120,6 +119,9 @@ struct zforce_ts {
 
 	struct regulator	*reg_vdd;
 
+	struct gpio_desc	*gpio_int;
+	struct gpio_desc	*gpio_rst;
+
 	bool			suspending;
 	bool			suspended;
 	bool			boot_complete;
@@ -161,6 +163,16 @@ static int zforce_command(struct zforce_ts *ts, u8 cmd)
 	return 0;
 }
 
+static void zforce_reset_assert(struct zforce_ts *ts)
+{
+	gpiod_set_value_cansleep(ts->gpio_rst, 1);
+}
+
+static void zforce_reset_deassert(struct zforce_ts *ts)
+{
+	gpiod_set_value_cansleep(ts->gpio_rst, 0);
+}
+
 static int zforce_send_wait(struct zforce_ts *ts, const char *buf, int len)
 {
 	struct i2c_client *client = ts->client;
@@ -479,7 +491,6 @@ static irqreturn_t zforce_irq_thread(int irq, void *dev_id)
 {
 	struct zforce_ts *ts = dev_id;
 	struct i2c_client *client = ts->client;
-	const struct zforce_ts_platdata *pdata = ts->pdata;
 	int ret;
 	u8 payload_buffer[FRAME_MAXSIZE];
 	u8 *payload;
@@ -499,7 +510,7 @@ static irqreturn_t zforce_irq_thread(int irq, void *dev_id)
 	if (!ts->suspending && device_may_wakeup(&client->dev))
 		pm_stay_awake(&client->dev);
 
-	while (!gpio_get_value(pdata->gpio_int)) {
+	while (!gpiod_get_value_cansleep(ts->gpio_int)) {
 		ret = zforce_read_packet(ts, payload_buffer);
 		if (ret < 0) {
 			dev_err(&client->dev,
@@ -690,7 +701,7 @@ static void zforce_reset(void *data)
 {
 	struct zforce_ts *ts = data;
 
-	gpio_set_value(ts->pdata->gpio_rst, 0);
+	zforce_reset_assert(ts);
 
 	udelay(10);
 
@@ -712,18 +723,6 @@ static struct zforce_ts_platdata *zforce_parse_dt(struct device *dev)
 		return ERR_PTR(-ENOMEM);
 	}
 
-	pdata->gpio_int = of_get_gpio(np, 0);
-	if (!gpio_is_valid(pdata->gpio_int)) {
-		dev_err(dev, "failed to get interrupt gpio\n");
-		return ERR_PTR(-EINVAL);
-	}
-
-	pdata->gpio_rst = of_get_gpio(np, 1);
-	if (!gpio_is_valid(pdata->gpio_rst)) {
-		dev_err(dev, "failed to get reset gpio\n");
-		return ERR_PTR(-EINVAL);
-	}
-
 	if (of_property_read_u32(np, "x-size", &pdata->x_max)) {
 		dev_err(dev, "failed to get x-size property\n");
 		return ERR_PTR(-EINVAL);
@@ -755,19 +754,22 @@ static int zforce_probe(struct i2c_client *client,
 	if (!ts)
 		return -ENOMEM;
 
-	ret = devm_gpio_request_one(&client->dev, pdata->gpio_int, GPIOF_IN,
-				    "zforce_ts_int");
-	if (ret) {
-		dev_err(&client->dev, "request of gpio %d failed, %d\n",
-			pdata->gpio_int, ret);
+	/* INT GPIO */
+	ts->gpio_int = devm_gpiod_get_index(&client->dev, NULL, 0, GPIOD_IN);
+	if (IS_ERR(ts->gpio_int)) {
+		ret = PTR_ERR(ts->gpio_int);
+		dev_err(&client->dev,
+			"failed to request interrupt GPIO: %d\n", ret);
 		return ret;
 	}
 
-	ret = devm_gpio_request_one(&client->dev, pdata->gpio_rst,
-				    GPIOF_OUT_INIT_LOW, "zforce_ts_rst");
-	if (ret) {
-		dev_err(&client->dev, "request of gpio %d failed, %d\n",
-			pdata->gpio_rst, ret);
+	/* RST GPIO */
+	ts->gpio_rst = devm_gpiod_get_index(&client->dev, NULL, 1,
+					    GPIOD_OUT_HIGH);
+	if (IS_ERR(ts->gpio_rst)) {
+		ret = PTR_ERR(ts->gpio_rst);
+		dev_err(&client->dev,
+			"failed to request reset GPIO: %d\n", ret);
 		return ret;
 	}
 
@@ -863,7 +865,7 @@ static int zforce_probe(struct i2c_client *client,
 	i2c_set_clientdata(client, ts);
 
 	/* let the controller boot */
-	gpio_set_value(pdata->gpio_rst, 1);
+	zforce_reset_deassert(ts);
 
 	ts->command_waiting = NOTIFICATION_BOOTCOMPLETE;
 	if (wait_for_completion_timeout(&ts->command_done, WAIT_TIMEOUT) == 0)
diff --git a/include/linux/platform_data/zforce_ts.h b/include/linux/platform_data/zforce_ts.h
index 0472ab2f6ede..7bdece8ef33e 100644
--- a/include/linux/platform_data/zforce_ts.h
+++ b/include/linux/platform_data/zforce_ts.h
@@ -16,9 +16,6 @@
 #define _LINUX_INPUT_ZFORCE_TS_H
 
 struct zforce_ts_platdata {
-	int gpio_int;
-	int gpio_rst;
-
 	unsigned int x_max;
 	unsigned int y_max;
 };
-- 
cgit v1.2.3


From ec0843fabe29ad44bdaaa16c8d6cda4537716de5 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Wed, 8 Jul 2015 08:25:50 -0700
Subject: Input: drv260x/drv2665/drv2667 - constify reg_default tables

These reg_default tables are not modified after initialized, so make them
const.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/misc/drv260x.c | 2 +-
 drivers/input/misc/drv2665.c | 2 +-
 drivers/input/misc/drv2667.c | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/input/misc/drv260x.c b/drivers/input/misc/drv260x.c
index e5d60ecd29a4..0e3af55d9e25 100644
--- a/drivers/input/misc/drv260x.c
+++ b/drivers/input/misc/drv260x.c
@@ -204,7 +204,7 @@ struct drv260x_data {
 	int overdrive_voltage;
 };
 
-static struct reg_default drv260x_reg_defs[] = {
+static const struct reg_default drv260x_reg_defs[] = {
 	{ DRV260X_STATUS, 0xe0 },
 	{ DRV260X_MODE, 0x40 },
 	{ DRV260X_RT_PB_IN, 0x00 },
diff --git a/drivers/input/misc/drv2665.c b/drivers/input/misc/drv2665.c
index 0afaa33de07d..e9501fdca5ef 100644
--- a/drivers/input/misc/drv2665.c
+++ b/drivers/input/misc/drv2665.c
@@ -74,7 +74,7 @@ static const u8 drv2665_sine_wave_form[] = {
 	0x9b, 0x9f, 0xa5, 0xad, 0xb8, 0xc4, 0xd2, 0xe0, 0xf0, 0x00,
 };
 
-static struct reg_default drv2665_reg_defs[] = {
+static const struct reg_default drv2665_reg_defs[] = {
 	{ DRV2665_STATUS, 0x02 },
 	{ DRV2665_CTRL_1, 0x28 },
 	{ DRV2665_CTRL_2, 0x40 },
diff --git a/drivers/input/misc/drv2667.c b/drivers/input/misc/drv2667.c
index fc0fddf0896a..a231342207f9 100644
--- a/drivers/input/misc/drv2667.c
+++ b/drivers/input/misc/drv2667.c
@@ -116,7 +116,7 @@ struct drv2667_data {
 	u32 frequency;
 };
 
-static struct reg_default drv2667_reg_defs[] = {
+static const struct reg_default drv2667_reg_defs[] = {
 	{ DRV2667_STATUS, 0x02 },
 	{ DRV2667_CTRL_1, 0x28 },
 	{ DRV2667_CTRL_2, 0x40 },
-- 
cgit v1.2.3


From f23487cdbe3bd002e99f41250143014e522c34de Mon Sep 17 00:00:00 2001
From: Anshul Garg <aksgarg1989@gmail.com>
Date: Wed, 8 Jul 2015 16:41:39 -0700
Subject: Input: joydev - use for_each_set_bit where appropriate

Use for_each_set_bit to check for set bits in bitmap as it is more
efficient than checking individual bits.

Signed-off-by: Anshul Garg <aksgarg1989@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/joydev.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
index f362883c94e3..46862602a5f7 100644
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -798,12 +798,11 @@ static int joydev_connect(struct input_handler *handler, struct input_dev *dev,
 	joydev->handle.handler = handler;
 	joydev->handle.private = joydev;
 
-	for (i = 0; i < ABS_CNT; i++)
-		if (test_bit(i, dev->absbit)) {
-			joydev->absmap[i] = joydev->nabs;
-			joydev->abspam[joydev->nabs] = i;
-			joydev->nabs++;
-		}
+	for_each_set_bit(i, dev->absbit, ABS_CNT) {
+		joydev->absmap[i] = joydev->nabs;
+		joydev->abspam[joydev->nabs] = i;
+		joydev->nabs++;
+	}
 
 	for (i = BTN_JOYSTICK - BTN_MISC; i < KEY_MAX - BTN_MISC + 1; i++)
 		if (test_bit(i + BTN_MISC, dev->keybit)) {
-- 
cgit v1.2.3


From 948cea14487af7d6e8b8007dc24a5361869f410b Mon Sep 17 00:00:00 2001
From: Anshul Garg <aksgarg1989@gmail.com>
Date: Wed, 8 Jul 2015 16:43:20 -0700
Subject: Input: ff-core - use for_each_set_bit where appropriate

Use for_each_set_bit to check for set bits in bitmap
as it is more efficient than checking individual bits.

Signed-off-by: Anshul Garg <aksgarg1989@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/ff-core.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/input/ff-core.c b/drivers/input/ff-core.c
index 8f4a30fccbb6..c64208267198 100644
--- a/drivers/input/ff-core.c
+++ b/drivers/input/ff-core.c
@@ -343,9 +343,8 @@ int input_ff_create(struct input_dev *dev, unsigned int max_effects)
 	__set_bit(EV_FF, dev->evbit);
 
 	/* Copy "true" bits into ff device bitmap */
-	for (i = 0; i <= FF_MAX; i++)
-		if (test_bit(i, dev->ffbit))
-			__set_bit(i, ff->ffbit);
+	for_each_set_bit(i, dev->ffbit, FF_CNT)
+		__set_bit(i, ff->ffbit);
 
 	/* we can emulate RUMBLE with periodic effects */
 	if (test_bit(FF_PERIODIC, ff->ffbit))
-- 
cgit v1.2.3


From b6d30968d86c45a7bb599eaca13ff048d3fa576c Mon Sep 17 00:00:00 2001
From: Anshul Garg <aksgarg1989@gmail.com>
Date: Thu, 9 Jul 2015 10:18:22 -0700
Subject: Input: uinput - switch to using for_each_set_bit()

Use for_each_set_bit to check for set bits in bitmap
as it is more efficient and compact.

Signed-off-by: Anshul Garg <aksgarg1989@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/misc/uinput.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 421e29e4cd81..345df9b03aed 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -320,10 +320,8 @@ static int uinput_validate_absbits(struct input_dev *dev)
 	 * Check if absmin/absmax/absfuzz/absflat are sane.
 	 */
 
-	for (cnt = 0; cnt < ABS_CNT; cnt++) {
+	for_each_set_bit(cnt, dev->absbit, ABS_CNT) {
 		int min, max;
-		if (!test_bit(cnt, dev->absbit))
-			continue;
 
 		min = input_abs_get_min(dev, cnt);
 		max = input_abs_get_max(dev, cnt);
@@ -416,7 +414,7 @@ static int uinput_setup_device(struct uinput_device *udev,
 	dev->id.product	= user_dev->id.product;
 	dev->id.version	= user_dev->id.version;
 
-	for (i = 0; i < ABS_CNT; i++) {
+	for_each_set_bit(i, dev->absbit, ABS_CNT) {
 		input_abs_set_max(dev, i, user_dev->absmax[i]);
 		input_abs_set_min(dev, i, user_dev->absmin[i]);
 		input_abs_set_fuzz(dev, i, user_dev->absfuzz[i]);
-- 
cgit v1.2.3


From f61fd21dea1b9b40edfab07bdcd60d6a3bd95ba1 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Mon, 6 Jul 2015 14:45:25 -0700
Subject: Input: of_touchscreen - always issue warning if axis is not set up

Do issue warning about axis that is present in device tree but not specified
by the driver even in case of multi-touch axis as callers now tell us if they
expect multi-touch data or not.

Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/of_touchscreen.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/input/touchscreen/of_touchscreen.c b/drivers/input/touchscreen/of_touchscreen.c
index 806cd0ad160f..759cf4b8ba09 100644
--- a/drivers/input/touchscreen/of_touchscreen.c
+++ b/drivers/input/touchscreen/of_touchscreen.c
@@ -39,13 +39,9 @@ static void touchscreen_set_params(struct input_dev *dev,
 	struct input_absinfo *absinfo;
 
 	if (!test_bit(axis, dev->absbit)) {
-		/*
-		 * Emit a warning only if the axis is not a multitouch
-		 * axis, which might not be set by the driver.
-		 */
-		if (!input_is_mt_axis(axis))
-			dev_warn(&dev->dev,
-				 "DT specifies parameters but the axis is not set up\n");
+		dev_warn(&dev->dev,
+			 "DT specifies parameters but the axis %lu is not set up\n",
+			 axis);
 		return;
 	}
 
-- 
cgit v1.2.3


From 517178692ccd730a95b278bd8cd67e11498a9a84 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Mon, 6 Jul 2015 14:57:54 -0700
Subject: Input: of_touchscreen - fix setting max values on X/Y axis

The binding specification says that "touchscreen-size-x" and "-y" specify
horizontal and vertical resolution of the touchscreen and therefore maximum
absolute coordinates should be reduced by 1 since we are starting with 0.

Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/of_touchscreen.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/input/touchscreen/of_touchscreen.c b/drivers/input/touchscreen/of_touchscreen.c
index 759cf4b8ba09..50bc0f219547 100644
--- a/drivers/input/touchscreen/of_touchscreen.c
+++ b/drivers/input/touchscreen/of_touchscreen.c
@@ -71,23 +71,25 @@ void touchscreen_parse_of_params(struct input_dev *dev, bool multitouch)
 
 	axis = multitouch ? ABS_MT_POSITION_X : ABS_X;
 	data_present = touchscreen_get_prop_u32(np, "touchscreen-size-x",
-						input_abs_get_max(dev, axis),
+						input_abs_get_max(dev,
+								  axis) + 1,
 						&maximum) |
 		       touchscreen_get_prop_u32(np, "touchscreen-fuzz-x",
 						input_abs_get_fuzz(dev, axis),
 						&fuzz);
 	if (data_present)
-		touchscreen_set_params(dev, axis, maximum, fuzz);
+		touchscreen_set_params(dev, axis, maximum - 1, fuzz);
 
 	axis = multitouch ? ABS_MT_POSITION_Y : ABS_Y;
 	data_present = touchscreen_get_prop_u32(np, "touchscreen-size-y",
-						input_abs_get_max(dev, axis),
+						input_abs_get_max(dev,
+								  axis) + 1,
 						&maximum) |
 		       touchscreen_get_prop_u32(np, "touchscreen-fuzz-y",
 						input_abs_get_fuzz(dev, axis),
 						&fuzz);
 	if (data_present)
-		touchscreen_set_params(dev, axis, maximum, fuzz);
+		touchscreen_set_params(dev, axis, maximum - 1, fuzz);
 
 	axis = multitouch ? ABS_MT_PRESSURE : ABS_PRESSURE;
 	data_present = touchscreen_get_prop_u32(np, "touchscreen-max-pressure",
-- 
cgit v1.2.3


From 4200e831e4a8fd09fa4e78de2e571ab270c12d06 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Mon, 6 Jul 2015 15:18:24 -0700
Subject: Input: of_touchscreen - switch to using device properties

Let's switch form OF to device properties so that common parsing code could
work not only on device tree but also on ACPI-based platforms.

Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/Kconfig          |  4 +--
 drivers/input/touchscreen/Makefile         |  2 +-
 drivers/input/touchscreen/edt-ft5x06.c     |  2 +-
 drivers/input/touchscreen/of_touchscreen.c | 56 ++++++++++++++++--------------
 drivers/input/touchscreen/tsc2005.c        |  2 +-
 include/linux/input/touchscreen.h          | 11 ++----
 6 files changed, 37 insertions(+), 40 deletions(-)

diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index aa2b5f21b89b..27035ecbd4f5 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -11,9 +11,9 @@ menuconfig INPUT_TOUCHSCREEN
 
 if INPUT_TOUCHSCREEN
 
-config OF_TOUCHSCREEN
+config TOUCHSCREEN_PROPERTIES
 	def_tristate INPUT
-	depends on INPUT && OF
+	depends on INPUT
 
 config TOUCHSCREEN_88PM860X
 	tristate "Marvell 88PM860x touchscreen"
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index fa3d33bac7fc..c85aae23e7f8 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -6,7 +6,7 @@
 
 wm97xx-ts-y := wm97xx-core.o
 
-obj-$(CONFIG_OF_TOUCHSCREEN)		+= of_touchscreen.o
+obj-$(CONFIG_TOUCHSCREEN_PROPERTIES)	+= of_touchscreen.o
 obj-$(CONFIG_TOUCHSCREEN_88PM860X)	+= 88pm860x-ts.o
 obj-$(CONFIG_TOUCHSCREEN_AD7877)	+= ad7877.o
 obj-$(CONFIG_TOUCHSCREEN_AD7879)	+= ad7879.o
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index 394b1de9a2a3..8f8f3199be39 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -1041,7 +1041,7 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client,
 			     0, tsdata->num_y * 64 - 1, 0, 0);
 
 	if (!pdata)
-		touchscreen_parse_of_params(input, true);
+		touchscreen_parse_properties(input, true);
 
 	error = input_mt_init_slots(input, MAX_SUPPORT_POINTS, INPUT_MT_DIRECT);
 	if (error) {
diff --git a/drivers/input/touchscreen/of_touchscreen.c b/drivers/input/touchscreen/of_touchscreen.c
index 50bc0f219547..bb6f2fe14667 100644
--- a/drivers/input/touchscreen/of_touchscreen.c
+++ b/drivers/input/touchscreen/of_touchscreen.c
@@ -9,12 +9,12 @@
  *
  */
 
-#include <linux/of.h>
+#include <linux/property.h>
 #include <linux/input.h>
 #include <linux/input/mt.h>
 #include <linux/input/touchscreen.h>
 
-static bool touchscreen_get_prop_u32(struct device_node *np,
+static bool touchscreen_get_prop_u32(struct device *dev,
 				     const char *property,
 				     unsigned int default_value,
 				     unsigned int *value)
@@ -22,7 +22,7 @@ static bool touchscreen_get_prop_u32(struct device_node *np,
 	u32 val;
 	int error;
 
-	error = of_property_read_u32(np, property, &val);
+	error = device_property_read_u32(dev, property, &val);
 	if (error) {
 		*value = default_value;
 		return false;
@@ -51,54 +51,58 @@ static void touchscreen_set_params(struct input_dev *dev,
 }
 
 /**
- * touchscreen_parse_of_params - parse common touchscreen DT properties
- * @dev: device that should be parsed
+ * touchscreen_parse_properties - parse common touchscreen DT properties
+ * @input: input device that should be parsed
+ * @multitouch: specifies whether parsed properties should be applied to
+ *	single-touch or multi-touch axes
  *
  * This function parses common DT properties for touchscreens and setups the
- * input device accordingly. The function keeps previously setuped default
+ * input device accordingly. The function keeps previously set up default
  * values if no value is specified via DT.
  */
-void touchscreen_parse_of_params(struct input_dev *dev, bool multitouch)
+void touchscreen_parse_properties(struct input_dev *input, bool multitouch)
 {
-	struct device_node *np = dev->dev.parent->of_node;
+	struct device *dev = input->dev.parent;
 	unsigned int axis;
 	unsigned int maximum, fuzz;
 	bool data_present;
 
-	input_alloc_absinfo(dev);
-	if (!dev->absinfo)
+	input_alloc_absinfo(input);
+	if (!input->absinfo)
 		return;
 
 	axis = multitouch ? ABS_MT_POSITION_X : ABS_X;
-	data_present = touchscreen_get_prop_u32(np, "touchscreen-size-x",
-						input_abs_get_max(dev,
+	data_present = touchscreen_get_prop_u32(dev, "touchscreen-size-x",
+						input_abs_get_max(input,
 								  axis) + 1,
 						&maximum) |
-		       touchscreen_get_prop_u32(np, "touchscreen-fuzz-x",
-						input_abs_get_fuzz(dev, axis),
+		       touchscreen_get_prop_u32(dev, "touchscreen-fuzz-x",
+						input_abs_get_fuzz(input, axis),
 						&fuzz);
 	if (data_present)
-		touchscreen_set_params(dev, axis, maximum - 1, fuzz);
+		touchscreen_set_params(input, axis, maximum - 1, fuzz);
 
 	axis = multitouch ? ABS_MT_POSITION_Y : ABS_Y;
-	data_present = touchscreen_get_prop_u32(np, "touchscreen-size-y",
-						input_abs_get_max(dev,
+	data_present = touchscreen_get_prop_u32(dev, "touchscreen-size-y",
+						input_abs_get_max(input,
 								  axis) + 1,
 						&maximum) |
-		       touchscreen_get_prop_u32(np, "touchscreen-fuzz-y",
-						input_abs_get_fuzz(dev, axis),
+		       touchscreen_get_prop_u32(dev, "touchscreen-fuzz-y",
+						input_abs_get_fuzz(input, axis),
 						&fuzz);
 	if (data_present)
-		touchscreen_set_params(dev, axis, maximum - 1, fuzz);
+		touchscreen_set_params(input, axis, maximum - 1, fuzz);
 
 	axis = multitouch ? ABS_MT_PRESSURE : ABS_PRESSURE;
-	data_present = touchscreen_get_prop_u32(np, "touchscreen-max-pressure",
-						input_abs_get_max(dev, axis),
+	data_present = touchscreen_get_prop_u32(dev,
+						"touchscreen-max-pressure",
+						input_abs_get_max(input, axis),
 						&maximum) |
-		       touchscreen_get_prop_u32(np, "touchscreen-fuzz-pressure",
-						input_abs_get_fuzz(dev, axis),
+		       touchscreen_get_prop_u32(dev,
+						"touchscreen-fuzz-pressure",
+						input_abs_get_fuzz(input, axis),
 						&fuzz);
 	if (data_present)
-		touchscreen_set_params(dev, axis, maximum, fuzz);
+		touchscreen_set_params(input, axis, maximum, fuzz);
 }
-EXPORT_SYMBOL(touchscreen_parse_of_params);
+EXPORT_SYMBOL(touchscreen_parse_properties);
diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c
index d8c025b0f88c..aaf947525cd9 100644
--- a/drivers/input/touchscreen/tsc2005.c
+++ b/drivers/input/touchscreen/tsc2005.c
@@ -709,7 +709,7 @@ static int tsc2005_probe(struct spi_device *spi)
 	input_set_abs_params(input_dev, ABS_PRESSURE, 0, max_p, fudge_p, 0);
 
 	if (np)
-		touchscreen_parse_of_params(input_dev, false);
+		touchscreen_parse_properties(input_dev, false);
 
 	input_dev->open = tsc2005_open;
 	input_dev->close = tsc2005_close;
diff --git a/include/linux/input/touchscreen.h b/include/linux/input/touchscreen.h
index eecc9ea6cd58..c91e1376132b 100644
--- a/include/linux/input/touchscreen.h
+++ b/include/linux/input/touchscreen.h
@@ -9,15 +9,8 @@
 #ifndef _TOUCHSCREEN_H
 #define _TOUCHSCREEN_H
 
-#include <linux/input.h>
+struct input_dev;
 
-#ifdef CONFIG_OF
-void touchscreen_parse_of_params(struct input_dev *dev, bool multitouch);
-#else
-static inline void touchscreen_parse_of_params(struct input_dev *dev,
-					       bool multitouch)
-{
-}
-#endif
+void touchscreen_parse_properties(struct input_dev *dev, bool multitouch);
 
 #endif
-- 
cgit v1.2.3


From 28a74c050060c17b1edaee2d60470a33be476941 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Mon, 6 Jul 2015 11:48:47 -0700
Subject: Input: pixcir_i2c_ts - move platform data

Let's move driver's platform data definitions from include/linux/input/
into include/linux/platform_data/ so that it stays with the rest of
platform data definitions.

Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/pixcir_i2c_ts.c   |  2 +-
 include/linux/input/pixcir_ts.h             | 64 -----------------------------
 include/linux/platform_data/pixcir_i2c_ts.h | 64 +++++++++++++++++++++++++++++
 3 files changed, 65 insertions(+), 65 deletions(-)
 delete mode 100644 include/linux/input/pixcir_ts.h
 create mode 100644 include/linux/platform_data/pixcir_i2c_ts.h

diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c
index 2c2107147319..f7d90997a786 100644
--- a/drivers/input/touchscreen/pixcir_i2c_ts.c
+++ b/drivers/input/touchscreen/pixcir_i2c_ts.c
@@ -24,11 +24,11 @@
 #include <linux/i2c.h>
 #include <linux/input.h>
 #include <linux/input/mt.h>
-#include <linux/input/pixcir_ts.h>
 #include <linux/gpio.h>
 #include <linux/of.h>
 #include <linux/of_gpio.h>
 #include <linux/of_device.h>
+#include <linux/platform_data/pixcir_i2c_ts.h>
 
 #define PIXCIR_MAX_SLOTS       5 /* Max fingers supported by driver */
 
diff --git a/include/linux/input/pixcir_ts.h b/include/linux/input/pixcir_ts.h
deleted file mode 100644
index 7bae83b7c396..000000000000
--- a/include/linux/input/pixcir_ts.h
+++ /dev/null
@@ -1,64 +0,0 @@
-#ifndef	_PIXCIR_I2C_TS_H
-#define	_PIXCIR_I2C_TS_H
-
-/*
- * Register map
- */
-#define PIXCIR_REG_POWER_MODE	51
-#define PIXCIR_REG_INT_MODE	52
-
-/*
- * Power modes:
- * active: max scan speed
- * idle: lower scan speed with automatic transition to active on touch
- * halt: datasheet says sleep but this is more like halt as the chip
- *       clocks are cut and it can only be brought out of this mode
- *	 using the RESET pin.
- */
-enum pixcir_power_mode {
-	PIXCIR_POWER_ACTIVE,
-	PIXCIR_POWER_IDLE,
-	PIXCIR_POWER_HALT,
-};
-
-#define PIXCIR_POWER_MODE_MASK	0x03
-#define PIXCIR_POWER_ALLOW_IDLE (1UL << 2)
-
-/*
- * Interrupt modes:
- * periodical: interrupt is asserted periodicaly
- * diff coordinates: interrupt is asserted when coordinates change
- * level on touch: interrupt level asserted during touch
- * pulse on touch: interrupt pulse asserted druing touch
- *
- */
-enum pixcir_int_mode {
-	PIXCIR_INT_PERIODICAL,
-	PIXCIR_INT_DIFF_COORD,
-	PIXCIR_INT_LEVEL_TOUCH,
-	PIXCIR_INT_PULSE_TOUCH,
-};
-
-#define PIXCIR_INT_MODE_MASK	0x03
-#define PIXCIR_INT_ENABLE	(1UL << 3)
-#define PIXCIR_INT_POL_HIGH	(1UL << 2)
-
-/**
- * struct pixcir_irc_chip_data - chip related data
- * @max_fingers:	Max number of fingers reported simultaneously by h/w
- * @has_hw_ids:		Hardware supports finger tracking IDs
- *
- */
-struct pixcir_i2c_chip_data {
-	u8 max_fingers;
-	bool has_hw_ids;
-};
-
-struct pixcir_ts_platform_data {
-	int x_max;
-	int y_max;
-	int gpio_attb;		/* GPIO connected to ATTB line */
-	struct pixcir_i2c_chip_data chip;
-};
-
-#endif
diff --git a/include/linux/platform_data/pixcir_i2c_ts.h b/include/linux/platform_data/pixcir_i2c_ts.h
new file mode 100644
index 000000000000..7bae83b7c396
--- /dev/null
+++ b/include/linux/platform_data/pixcir_i2c_ts.h
@@ -0,0 +1,64 @@
+#ifndef	_PIXCIR_I2C_TS_H
+#define	_PIXCIR_I2C_TS_H
+
+/*
+ * Register map
+ */
+#define PIXCIR_REG_POWER_MODE	51
+#define PIXCIR_REG_INT_MODE	52
+
+/*
+ * Power modes:
+ * active: max scan speed
+ * idle: lower scan speed with automatic transition to active on touch
+ * halt: datasheet says sleep but this is more like halt as the chip
+ *       clocks are cut and it can only be brought out of this mode
+ *	 using the RESET pin.
+ */
+enum pixcir_power_mode {
+	PIXCIR_POWER_ACTIVE,
+	PIXCIR_POWER_IDLE,
+	PIXCIR_POWER_HALT,
+};
+
+#define PIXCIR_POWER_MODE_MASK	0x03
+#define PIXCIR_POWER_ALLOW_IDLE (1UL << 2)
+
+/*
+ * Interrupt modes:
+ * periodical: interrupt is asserted periodicaly
+ * diff coordinates: interrupt is asserted when coordinates change
+ * level on touch: interrupt level asserted during touch
+ * pulse on touch: interrupt pulse asserted druing touch
+ *
+ */
+enum pixcir_int_mode {
+	PIXCIR_INT_PERIODICAL,
+	PIXCIR_INT_DIFF_COORD,
+	PIXCIR_INT_LEVEL_TOUCH,
+	PIXCIR_INT_PULSE_TOUCH,
+};
+
+#define PIXCIR_INT_MODE_MASK	0x03
+#define PIXCIR_INT_ENABLE	(1UL << 3)
+#define PIXCIR_INT_POL_HIGH	(1UL << 2)
+
+/**
+ * struct pixcir_irc_chip_data - chip related data
+ * @max_fingers:	Max number of fingers reported simultaneously by h/w
+ * @has_hw_ids:		Hardware supports finger tracking IDs
+ *
+ */
+struct pixcir_i2c_chip_data {
+	u8 max_fingers;
+	bool has_hw_ids;
+};
+
+struct pixcir_ts_platform_data {
+	int x_max;
+	int y_max;
+	int gpio_attb;		/* GPIO connected to ATTB line */
+	struct pixcir_i2c_chip_data chip;
+};
+
+#endif
-- 
cgit v1.2.3


From cb4a5f068096c0cea954f363e70020aabb3555f4 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Mon, 6 Jul 2015 11:56:21 -0700
Subject: Input: pixcir_i2c_ts - switch the device over to gpiod

This allows uniform parsing on legacy, DT and ACPI systems.

Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/pixcir_i2c_ts.c   | 26 +++++++++-----------------
 include/linux/platform_data/pixcir_i2c_ts.h |  1 -
 2 files changed, 9 insertions(+), 18 deletions(-)

diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c
index f7d90997a786..19732b573227 100644
--- a/drivers/input/touchscreen/pixcir_i2c_ts.c
+++ b/drivers/input/touchscreen/pixcir_i2c_ts.c
@@ -25,8 +25,8 @@
 #include <linux/input.h>
 #include <linux/input/mt.h>
 #include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/of.h>
-#include <linux/of_gpio.h>
 #include <linux/of_device.h>
 #include <linux/platform_data/pixcir_i2c_ts.h>
 
@@ -35,6 +35,7 @@
 struct pixcir_i2c_ts_data {
 	struct i2c_client *client;
 	struct input_dev *input;
+	struct gpio_desc *gpio_attb;
 	const struct pixcir_ts_platform_data *pdata;
 	bool running;
 	int max_fingers;	/* Max fingers supported in this instance */
@@ -161,7 +162,6 @@ static void pixcir_ts_report(struct pixcir_i2c_ts_data *ts,
 static irqreturn_t pixcir_ts_isr(int irq, void *dev_id)
 {
 	struct pixcir_i2c_ts_data *tsdata = dev_id;
-	const struct pixcir_ts_platform_data *pdata = tsdata->pdata;
 	struct pixcir_report_data report;
 
 	while (tsdata->running) {
@@ -171,7 +171,7 @@ static irqreturn_t pixcir_ts_isr(int irq, void *dev_id)
 		/* report it */
 		pixcir_ts_report(tsdata, &report);
 
-		if (gpio_get_value(pdata->gpio_attb)) {
+		if (gpiod_get_value(tsdata->gpio_attb)) {
 			if (report.num_touches) {
 				/*
 				 * Last report with no finger up?
@@ -427,9 +427,6 @@ static struct pixcir_ts_platform_data *pixcir_parse_dt(struct device *dev)
 
 	pdata->chip = *(const struct pixcir_i2c_chip_data *)match->data;
 
-	pdata->gpio_attb = of_get_named_gpio(np, "attb-gpio", 0);
-	/* gpio_attb validity is checked in probe */
-
 	if (of_property_read_u32(np, "touchscreen-size-x", &pdata->x_max)) {
 		dev_err(dev, "Failed to get touchscreen-size-x property\n");
 		return ERR_PTR(-EINVAL);
@@ -442,8 +439,8 @@ static struct pixcir_ts_platform_data *pixcir_parse_dt(struct device *dev)
 	}
 	pdata->y_max -= 1;
 
-	dev_dbg(dev, "%s: x %d, y %d, gpio %d\n", __func__,
-		pdata->x_max + 1, pdata->y_max + 1, pdata->gpio_attb);
+	dev_dbg(dev, "%s: x %d, y %d\n", __func__,
+		pdata->x_max + 1, pdata->y_max + 1);
 
 	return pdata;
 }
@@ -476,11 +473,6 @@ static int pixcir_i2c_ts_probe(struct i2c_client *client,
 		return -EINVAL;
 	}
 
-	if (!gpio_is_valid(pdata->gpio_attb)) {
-		dev_err(dev, "Invalid gpio_attb in pdata\n");
-		return -EINVAL;
-	}
-
 	if (!pdata->chip.max_fingers) {
 		dev_err(dev, "Invalid max_fingers in pdata\n");
 		return -EINVAL;
@@ -530,10 +522,10 @@ static int pixcir_i2c_ts_probe(struct i2c_client *client,
 
 	input_set_drvdata(input, tsdata);
 
-	error = devm_gpio_request_one(dev, pdata->gpio_attb,
-				      GPIOF_DIR_IN, "pixcir_i2c_attb");
-	if (error) {
-		dev_err(dev, "Failed to request ATTB gpio\n");
+	tsdata->gpio_attb = devm_gpiod_get(dev, "attb", GPIOD_IN);
+	if (IS_ERR(tsdata->gpio_attb)) {
+		error = PTR_ERR(tsdata->gpio_attb);
+		dev_err(dev, "Failed to request ATTB gpio: %d\n", error);
 		return error;
 	}
 
diff --git a/include/linux/platform_data/pixcir_i2c_ts.h b/include/linux/platform_data/pixcir_i2c_ts.h
index 7bae83b7c396..646af6f8b838 100644
--- a/include/linux/platform_data/pixcir_i2c_ts.h
+++ b/include/linux/platform_data/pixcir_i2c_ts.h
@@ -57,7 +57,6 @@ struct pixcir_i2c_chip_data {
 struct pixcir_ts_platform_data {
 	int x_max;
 	int y_max;
-	int gpio_attb;		/* GPIO connected to ATTB line */
 	struct pixcir_i2c_chip_data chip;
 };
 
-- 
cgit v1.2.3


From 127520caebd9ae1b77c7026bf538a81b8fcd19a8 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Mon, 6 Jul 2015 13:27:00 -0700
Subject: Input: pixcir_i2c_ts - allow using with GPIO expanders

We are using threaded interrupt handler and thus are allowed to sleep.
Let's switch over to gpiod_get_value_cansleep() so that we do not get
ugly warnings in case GPIO controller might sleep when accessing GPIO.

Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/pixcir_i2c_ts.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c
index 19732b573227..5330c0446540 100644
--- a/drivers/input/touchscreen/pixcir_i2c_ts.c
+++ b/drivers/input/touchscreen/pixcir_i2c_ts.c
@@ -171,7 +171,7 @@ static irqreturn_t pixcir_ts_isr(int irq, void *dev_id)
 		/* report it */
 		pixcir_ts_report(tsdata, &report);
 
-		if (gpiod_get_value(tsdata->gpio_attb)) {
+		if (gpiod_get_value_cansleep(tsdata->gpio_attb)) {
 			if (report.num_touches) {
 				/*
 				 * Last report with no finger up?
-- 
cgit v1.2.3


From 40929167e6e8450a06501d292c5e5c81455d1c47 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Mon, 6 Jul 2015 13:27:43 -0700
Subject: Input: pixcir_i2c_ts - add RESET gpio

The controller has a RESET pin which is usually controlled over
a GPIO line. If such a GPIO is provided, perform a RESET
during probe.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 .../bindings/input/touchscreen/pixcir_i2c_ts.txt   |  3 +++
 drivers/input/touchscreen/pixcir_i2c_ts.c          | 22 ++++++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/pixcir_i2c_ts.txt b/Documentation/devicetree/bindings/input/touchscreen/pixcir_i2c_ts.txt
index 6e551090f465..8eb240a287c8 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/pixcir_i2c_ts.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/pixcir_i2c_ts.txt
@@ -8,6 +8,9 @@ Required properties:
 - touchscreen-size-x: horizontal resolution of touchscreen (in pixels)
 - touchscreen-size-y: vertical resolution of touchscreen (in pixels)
 
+Optional properties:
+- reset-gpio: GPIO connected to the RESET line of the chip
+
 Example:
 
 	i2c@00000000 {
diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c
index 5330c0446540..a5a83139aad0 100644
--- a/drivers/input/touchscreen/pixcir_i2c_ts.c
+++ b/drivers/input/touchscreen/pixcir_i2c_ts.c
@@ -36,6 +36,7 @@ struct pixcir_i2c_ts_data {
 	struct i2c_client *client;
 	struct input_dev *input;
 	struct gpio_desc *gpio_attb;
+	struct gpio_desc *gpio_reset;
 	const struct pixcir_ts_platform_data *pdata;
 	bool running;
 	int max_fingers;	/* Max fingers supported in this instance */
@@ -189,6 +190,17 @@ static irqreturn_t pixcir_ts_isr(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
+static void pixcir_reset(struct pixcir_i2c_ts_data *tsdata)
+{
+	if (!IS_ERR_OR_NULL(tsdata->gpio_reset)) {
+		gpiod_set_value_cansleep(tsdata->gpio_reset, 1);
+		ndelay(100);	/* datasheet section 1.2.3 says 80ns min. */
+		gpiod_set_value_cansleep(tsdata->gpio_reset, 0);
+		/* wait for controller ready. 100ms guess. */
+		msleep(100);
+	}
+}
+
 static int pixcir_set_power_mode(struct pixcir_i2c_ts_data *ts,
 				 enum pixcir_power_mode mode)
 {
@@ -529,6 +541,14 @@ static int pixcir_i2c_ts_probe(struct i2c_client *client,
 		return error;
 	}
 
+	tsdata->gpio_reset = devm_gpiod_get_optional(dev, "reset",
+						     GPIOD_OUT_LOW);
+	if (IS_ERR(tsdata->gpio_reset)) {
+		error = PTR_ERR(tsdata->gpio_reset);
+		dev_err(dev, "Failed to request RESET gpio: %d\n", error);
+		return error;
+	}
+
 	error = devm_request_threaded_irq(dev, client->irq, NULL, pixcir_ts_isr,
 					  IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
 					  client->name, tsdata);
@@ -537,6 +557,8 @@ static int pixcir_i2c_ts_probe(struct i2c_client *client,
 		return error;
 	}
 
+	pixcir_reset(tsdata);
+
 	/* Always be in IDLE mode to save power, device supports auto wake */
 	error = pixcir_set_power_mode(tsdata, PIXCIR_POWER_IDLE);
 	if (error) {
-- 
cgit v1.2.3


From 69b8c2a50c59a3b1c70666059a85c646f897eb96 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Mon, 6 Jul 2015 13:43:31 -0700
Subject: Input: pixcir_i2c_ts - simplify input device initialization

input_mt_init_slots() will perform necessary settings for performing
multi-touch to single-touch emulation, we do not need to do that ourselves.

Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/pixcir_i2c_ts.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c
index a5a83139aad0..f47480e8dff8 100644
--- a/drivers/input/touchscreen/pixcir_i2c_ts.c
+++ b/drivers/input/touchscreen/pixcir_i2c_ts.c
@@ -510,11 +510,6 @@ static int pixcir_i2c_ts_probe(struct i2c_client *client,
 	input->close = pixcir_input_close;
 	input->dev.parent = &client->dev;
 
-	__set_bit(EV_KEY, input->evbit);
-	__set_bit(EV_ABS, input->evbit);
-	__set_bit(BTN_TOUCH, input->keybit);
-	input_set_abs_params(input, ABS_X, 0, pdata->x_max, 0, 0);
-	input_set_abs_params(input, ABS_Y, 0, pdata->y_max, 0, 0);
 	input_set_abs_params(input, ABS_MT_POSITION_X, 0, pdata->x_max, 0, 0);
 	input_set_abs_params(input, ABS_MT_POSITION_Y, 0, pdata->y_max, 0, 0);
 
-- 
cgit v1.2.3


From d48259a0d2c6820d26ea2077c8d330cf1b33877d Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Mon, 6 Jul 2015 14:29:29 -0700
Subject: Input: pixcir_i2c_ts - use standard OF touchscreen parsing code

Let's switch to using standard touchscreen device properties parsing module
instead of doing it by hand in the driver.

Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/pixcir_i2c_ts.c | 95 ++++++++++++++-----------------
 1 file changed, 44 insertions(+), 51 deletions(-)

diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c
index f47480e8dff8..68d0d549797c 100644
--- a/drivers/input/touchscreen/pixcir_i2c_ts.c
+++ b/drivers/input/touchscreen/pixcir_i2c_ts.c
@@ -24,9 +24,10 @@
 #include <linux/i2c.h>
 #include <linux/input.h>
 #include <linux/input/mt.h>
+#include <linux/input/touchscreen.h>
 #include <linux/gpio.h>
 #include <linux/gpio/consumer.h>
-#include <linux/of.h>
+/*#include <linux/of.h>*/
 #include <linux/of_device.h>
 #include <linux/platform_data/pixcir_i2c_ts.h>
 
@@ -37,9 +38,9 @@ struct pixcir_i2c_ts_data {
 	struct input_dev *input;
 	struct gpio_desc *gpio_attb;
 	struct gpio_desc *gpio_reset;
-	const struct pixcir_ts_platform_data *pdata;
-	bool running;
+	const struct pixcir_i2c_chip_data *chip;
 	int max_fingers;	/* Max fingers supported in this instance */
+	bool running;
 };
 
 struct pixcir_touch {
@@ -62,7 +63,7 @@ static void pixcir_ts_parse(struct pixcir_i2c_ts_data *tsdata,
 	u8 touch;
 	int ret, i;
 	int readsize;
-	const struct pixcir_i2c_chip_data *chip = &tsdata->pdata->chip;
+	const struct pixcir_i2c_chip_data *chip = tsdata->chip;
 
 	memset(report, 0, sizeof(struct pixcir_report_data));
 
@@ -115,13 +116,13 @@ static void pixcir_ts_report(struct pixcir_i2c_ts_data *ts,
 	struct pixcir_touch *touch;
 	int n, i, slot;
 	struct device *dev = &ts->client->dev;
-	const struct pixcir_i2c_chip_data *chip = &ts->pdata->chip;
+	const struct pixcir_i2c_chip_data *chip = ts->chip;
 
 	n = report->num_touches;
 	if (n > PIXCIR_MAX_SLOTS)
 		n = PIXCIR_MAX_SLOTS;
 
-	if (!chip->has_hw_ids) {
+	if (!ts->chip->has_hw_ids) {
 		for (i = 0; i < n; i++) {
 			touch = &report->touches[i];
 			pos[i].x = touch->x;
@@ -423,77 +424,59 @@ static SIMPLE_DEV_PM_OPS(pixcir_dev_pm_ops,
 #ifdef CONFIG_OF
 static const struct of_device_id pixcir_of_match[];
 
-static struct pixcir_ts_platform_data *pixcir_parse_dt(struct device *dev)
+static int pixcir_parse_dt(struct device *dev,
+			   struct pixcir_i2c_ts_data *tsdata)
 {
-	struct pixcir_ts_platform_data *pdata;
-	struct device_node *np = dev->of_node;
 	const struct of_device_id *match;
 
 	match = of_match_device(of_match_ptr(pixcir_of_match), dev);
 	if (!match)
-		return ERR_PTR(-EINVAL);
-
-	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
-	if (!pdata)
-		return ERR_PTR(-ENOMEM);
-
-	pdata->chip = *(const struct pixcir_i2c_chip_data *)match->data;
-
-	if (of_property_read_u32(np, "touchscreen-size-x", &pdata->x_max)) {
-		dev_err(dev, "Failed to get touchscreen-size-x property\n");
-		return ERR_PTR(-EINVAL);
-	}
-	pdata->x_max -= 1;
-
-	if (of_property_read_u32(np, "touchscreen-size-y", &pdata->y_max)) {
-		dev_err(dev, "Failed to get touchscreen-size-y property\n");
-		return ERR_PTR(-EINVAL);
-	}
-	pdata->y_max -= 1;
+		return -EINVAL;
 
-	dev_dbg(dev, "%s: x %d, y %d\n", __func__,
-		pdata->x_max + 1, pdata->y_max + 1);
+	tsdata->chip = (const struct pixcir_i2c_chip_data *)match->data;
+	if (!tsdata->chip)
+		return -EINVAL;
 
-	return pdata;
+	return 0;
 }
 #else
-static struct pixcir_ts_platform_data *pixcir_parse_dt(struct device *dev)
+static int pixcir_parse_dt(struct device *dev,
+			   struct pixcir_i2c_ts_data *tsdata)
 {
-	return ERR_PTR(-EINVAL);
+	return -EINVAL;
 }
 #endif
 
 static int pixcir_i2c_ts_probe(struct i2c_client *client,
-					 const struct i2c_device_id *id)
+			       const struct i2c_device_id *id)
 {
 	const struct pixcir_ts_platform_data *pdata =
 			dev_get_platdata(&client->dev);
 	struct device *dev = &client->dev;
-	struct device_node *np = dev->of_node;
 	struct pixcir_i2c_ts_data *tsdata;
 	struct input_dev *input;
 	int error;
 
-	if (np && !pdata) {
-		pdata = pixcir_parse_dt(dev);
-		if (IS_ERR(pdata))
-			return PTR_ERR(pdata);
-	}
+	tsdata = devm_kzalloc(dev, sizeof(*tsdata), GFP_KERNEL);
+	if (!tsdata)
+		return -ENOMEM;
 
-	if (!pdata) {
+	if (pdata) {
+		tsdata->chip = &pdata->chip;
+	} else if (dev->of_node) {
+		error = pixcir_parse_dt(dev, tsdata);
+		if (error)
+			return error;
+	} else {
 		dev_err(&client->dev, "platform data not defined\n");
 		return -EINVAL;
 	}
 
-	if (!pdata->chip.max_fingers) {
-		dev_err(dev, "Invalid max_fingers in pdata\n");
+	if (!tsdata->chip->max_fingers) {
+		dev_err(dev, "Invalid max_fingers in chip data\n");
 		return -EINVAL;
 	}
 
-	tsdata = devm_kzalloc(dev, sizeof(*tsdata), GFP_KERNEL);
-	if (!tsdata)
-		return -ENOMEM;
-
 	input = devm_input_allocate_device(dev);
 	if (!input) {
 		dev_err(dev, "Failed to allocate input device\n");
@@ -502,7 +485,6 @@ static int pixcir_i2c_ts_probe(struct i2c_client *client,
 
 	tsdata->client = client;
 	tsdata->input = input;
-	tsdata->pdata = pdata;
 
 	input->name = client->name;
 	input->id.bustype = BUS_I2C;
@@ -510,10 +492,21 @@ static int pixcir_i2c_ts_probe(struct i2c_client *client,
 	input->close = pixcir_input_close;
 	input->dev.parent = &client->dev;
 
-	input_set_abs_params(input, ABS_MT_POSITION_X, 0, pdata->x_max, 0, 0);
-	input_set_abs_params(input, ABS_MT_POSITION_Y, 0, pdata->y_max, 0, 0);
+	if (pdata) {
+		input_set_abs_params(input, ABS_MT_POSITION_X, 0, pdata->x_max, 0, 0);
+		input_set_abs_params(input, ABS_MT_POSITION_Y, 0, pdata->y_max, 0, 0);
+	} else {
+		input_set_capability(input, EV_ABS, ABS_MT_POSITION_X);
+		input_set_capability(input, EV_ABS, ABS_MT_POSITION_Y);
+		touchscreen_parse_properties(input, true);
+		if (!input_abs_get_max(input, ABS_MT_POSITION_X) ||
+		    !input_abs_get_max(input, ABS_MT_POSITION_Y)) {
+			dev_err(dev, "Touchscreen size is not specified\n");
+			return -EINVAL;
+		}
+	}
 
-	tsdata->max_fingers = tsdata->pdata->chip.max_fingers;
+	tsdata->max_fingers = tsdata->chip->max_fingers;
 	if (tsdata->max_fingers > PIXCIR_MAX_SLOTS) {
 		tsdata->max_fingers = PIXCIR_MAX_SLOTS;
 		dev_info(dev, "Limiting maximum fingers to %d\n",
-- 
cgit v1.2.3


From d5ebe37e8cded781bb91ac63dda2da180ecb90b6 Mon Sep 17 00:00:00 2001
From: HungNien Chen <hn.chen@weidahitech.com>
Date: Thu, 9 Jul 2015 10:27:02 -0700
Subject: Input: wdt87xx_i2c - populate vendor and product in input device

These attributes can be used to identify controllers present in the system.

Signed-off-by: HungNien Chen <hn.chen@weidahitech.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/wdt87xx_i2c.c | 46 ++++++++++++++++++++++++++++++++-
 1 file changed, 45 insertions(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/wdt87xx_i2c.c b/drivers/input/touchscreen/wdt87xx_i2c.c
index fb92ae1c5fae..764d8f28203c 100644
--- a/drivers/input/touchscreen/wdt87xx_i2c.c
+++ b/drivers/input/touchscreen/wdt87xx_i2c.c
@@ -23,7 +23,7 @@
 #include <asm/unaligned.h>
 
 #define WDT87XX_NAME		"wdt87xx_i2c"
-#define WDT87XX_DRV_VER		"0.9.6"
+#define WDT87XX_DRV_VER		"0.9.7"
 #define WDT87XX_FW_NAME		"wdt87xx_fw.bin"
 #define WDT87XX_CFG_NAME	"wdt87xx_cfg.bin"
 
@@ -85,6 +85,11 @@
 #define CTL_PARAM_OFFSET_PHY_H		24
 #define CTL_PARAM_OFFSET_FACTOR		32
 
+/* The definition of the device descriptor */
+#define WDT_GD_DEVICE			1
+#define DEV_DESC_OFFSET_VID		8
+#define DEV_DESC_OFFSET_PID		10
+
 /* Communication commands */
 #define PACKET_SIZE			56
 #define VND_REQ_READ			0x06
@@ -165,6 +170,8 @@ struct wdt87xx_sys_param {
 	u16	scaling_factor;
 	u32	max_x;
 	u32	max_y;
+	u16	vendor_id;
+	u16	product_id;
 };
 
 struct wdt87xx_data {
@@ -208,6 +215,32 @@ static int wdt87xx_i2c_xfer(struct i2c_client *client,
 	return 0;
 }
 
+static int wdt87xx_get_desc(struct i2c_client *client, u8 desc_idx,
+			    u8 *buf, size_t len)
+{
+	u8 tx_buf[] = { 0x22, 0x00, 0x10, 0x0E, 0x23, 0x00 };
+	int error;
+
+	tx_buf[2] |= desc_idx & 0xF;
+
+	error = wdt87xx_i2c_xfer(client, tx_buf, sizeof(tx_buf),
+				 buf, len);
+	if (error) {
+		dev_err(&client->dev, "get desc failed: %d\n", error);
+		return error;
+	}
+
+	if (buf[0] != len) {
+		dev_err(&client->dev, "unexpected response to get desc: %d\n",
+			buf[0]);
+		return -EINVAL;
+	}
+
+	mdelay(WDT_COMMAND_DELAY_MS);
+
+	return 0;
+}
+
 static int wdt87xx_get_string(struct i2c_client *client, u8 str_idx,
 			      u8 *buf, size_t len)
 {
@@ -403,6 +436,15 @@ static int wdt87xx_get_sysparam(struct i2c_client *client,
 	u8 buf[PKT_READ_SIZE];
 	int error;
 
+	error = wdt87xx_get_desc(client, WDT_GD_DEVICE, buf, 18);
+	if (error) {
+		dev_err(&client->dev, "failed to get device desc\n");
+		return error;
+	}
+
+	param->vendor_id = get_unaligned_le16(buf + DEV_DESC_OFFSET_VID);
+	param->product_id = get_unaligned_le16(buf + DEV_DESC_OFFSET_PID);
+
 	error = wdt87xx_get_string(client, STRIDX_PARAMETERS, buf, 34);
 	if (error) {
 		dev_err(&client->dev, "failed to get parameters\n");
@@ -994,6 +1036,8 @@ static int wdt87xx_ts_create_input_device(struct wdt87xx_data *wdt)
 
 	input->name = "WDT87xx Touchscreen";
 	input->id.bustype = BUS_I2C;
+	input->id.vendor = wdt->param.vendor_id;
+	input->id.product = wdt->param.product_id;
 	input->phys = wdt->phys;
 
 	input_set_abs_params(input, ABS_MT_POSITION_X, 0,
-- 
cgit v1.2.3


From 339d6b88e872f8369495a7224916a4d1d8376ca3 Mon Sep 17 00:00:00 2001
From: HungNien Chen <hn.chen@weidahitech.com>
Date: Sat, 11 Jul 2015 17:30:19 -0700
Subject: Input: wdt87xx_i2c - change the sleep time to 2500ms after the sw
 reset

The original wait time was 200ms which was enough for the firmware to
finish loading and boot. After that the firmware will perform
initialization and touch calibration, which will take about 1.1 second. The
touch calibration will change controller frequency to scan at the most
optimal frequency and during calibration/frequency switching process we may
run into i2c data errors. To avoid them we extend the sleep to 2500ms after
issuing the sw reset.

Signed-off-by: HungNien Chen <hn.chen@weidahitech.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/wdt87xx_i2c.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/wdt87xx_i2c.c b/drivers/input/touchscreen/wdt87xx_i2c.c
index 764d8f28203c..515c20a6e10f 100644
--- a/drivers/input/touchscreen/wdt87xx_i2c.c
+++ b/drivers/input/touchscreen/wdt87xx_i2c.c
@@ -157,6 +157,7 @@
 /* Controller requires minimum 300us between commands */
 #define WDT_COMMAND_DELAY_MS		2
 #define WDT_FLASH_WRITE_DELAY_MS	4
+#define WDT_FW_RESET_TIME		2500
 
 struct wdt87xx_sys_param {
 	u16	fw_id;
@@ -406,7 +407,7 @@ static int wdt87xx_sw_reset(struct i2c_client *client)
 	}
 
 	/* Wait the device to be ready */
-	msleep(200);
+	msleep(WDT_FW_RESET_TIME);
 
 	return 0;
 }
-- 
cgit v1.2.3


From e1443d2849b146be4ed8d4ef89ae7e215aafaa5b Mon Sep 17 00:00:00 2001
From: Stephen Chandler Paul <cpaul@redhat.com>
Date: Wed, 15 Jul 2015 10:20:17 -0700
Subject: Input: i8042 - add unmask_kbd_data option

A big problem with the current i8042 debugging option is that it outputs
data going to and from the keyboard by default. As a result, many dmesg
logs uploaded by users will unintentionally contain sensitive information
such as their password, as such it's probably a good idea not to output
data coming from the keyboard unless specifically enabled by the user.

Signed-off-by: Stephen Chandler Paul <cpaul@redhat.com>
Reviewed-by: Andreas Mohr <andim2@users.sf.net>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 Documentation/kernel-parameters.txt |  4 ++++
 drivers/input/serio/i8042.c         | 43 +++++++++++++++++++++++++++++++++----
 drivers/input/serio/i8042.h         | 13 +++++++++++
 drivers/input/serio/serio.c         |  5 ++---
 include/linux/serio.h               |  2 ++
 5 files changed, 60 insertions(+), 7 deletions(-)

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index bfcb1a62a7b4..fd0f7cd8e496 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1274,6 +1274,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			     <bus_id>,<clkrate>
 
 	i8042.debug	[HW] Toggle i8042 debug mode
+	i8042.unmask_kbd_data
+			[HW] Enable printing of interrupt data from the KBD port
+			     (disabled by default, and as a pre-condition
+			     requires that i8042.debug=1 be enabled)
 	i8042.direct	[HW] Put keyboard port into non-translated mode
 	i8042.dumbkbd	[HW] Pretend that controller can only read data from
 			     keyboard and cannot control its state
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index cb5ece77fd7d..c9c98f0ab284 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -88,6 +88,10 @@ MODULE_PARM_DESC(nopnp, "Do not use PNP to detect controller settings");
 static bool i8042_debug;
 module_param_named(debug, i8042_debug, bool, 0600);
 MODULE_PARM_DESC(debug, "Turn i8042 debugging mode on and off");
+
+static bool i8042_unmask_kbd_data;
+module_param_named(unmask_kbd_data, i8042_unmask_kbd_data, bool, 0600);
+MODULE_PARM_DESC(unmask_kbd_data, "Unconditional enable (may reveal sensitive data) of normally sanitize-filtered kbd data traffic debug log [pre-condition: i8042.debug=1 enabled]");
 #endif
 
 static bool i8042_bypass_aux_irq_test;
@@ -116,6 +120,7 @@ struct i8042_port {
 	struct serio *serio;
 	int irq;
 	bool exists;
+	bool driver_bound;
 	signed char mux;
 };
 
@@ -133,6 +138,7 @@ static bool i8042_kbd_irq_registered;
 static bool i8042_aux_irq_registered;
 static unsigned char i8042_suppress_kbd_ack;
 static struct platform_device *i8042_platform_device;
+static struct notifier_block i8042_kbd_bind_notifier_block;
 
 static irqreturn_t i8042_interrupt(int irq, void *dev_id);
 static bool (*i8042_platform_filter)(unsigned char data, unsigned char str,
@@ -528,10 +534,10 @@ static irqreturn_t i8042_interrupt(int irq, void *dev_id)
 	port = &i8042_ports[port_no];
 	serio = port->exists ? port->serio : NULL;
 
-	dbg("%02x <- i8042 (interrupt, %d, %d%s%s)\n",
-	    data, port_no, irq,
-	    dfl & SERIO_PARITY ? ", bad parity" : "",
-	    dfl & SERIO_TIMEOUT ? ", timeout" : "");
+	filter_dbg(port->driver_bound, data, "<- i8042 (interrupt, %d, %d%s%s)\n",
+		   port_no, irq,
+		   dfl & SERIO_PARITY ? ", bad parity" : "",
+		   dfl & SERIO_TIMEOUT ? ", timeout" : "");
 
 	filtered = i8042_filter(data, str, serio);
 
@@ -1438,6 +1444,29 @@ static int __init i8042_setup_kbd(void)
 	return error;
 }
 
+static int i8042_kbd_bind_notifier(struct notifier_block *nb,
+				   unsigned long action, void *data)
+{
+	struct device *dev = data;
+	struct serio *serio = to_serio_port(dev);
+	struct i8042_port *port = serio->port_data;
+
+	if (serio != i8042_ports[I8042_KBD_PORT_NO].serio)
+		return 0;
+
+	switch (action) {
+	case BUS_NOTIFY_BOUND_DRIVER:
+		port->driver_bound = true;
+		break;
+
+	case BUS_NOTIFY_UNBIND_DRIVER:
+		port->driver_bound = false;
+		break;
+	}
+
+	return 0;
+}
+
 static int __init i8042_probe(struct platform_device *dev)
 {
 	int error;
@@ -1507,6 +1536,10 @@ static struct platform_driver i8042_driver = {
 	.shutdown	= i8042_shutdown,
 };
 
+static struct notifier_block i8042_kbd_bind_notifier_block = {
+	.notifier_call = i8042_kbd_bind_notifier,
+};
+
 static int __init i8042_init(void)
 {
 	struct platform_device *pdev;
@@ -1528,6 +1561,7 @@ static int __init i8042_init(void)
 		goto err_platform_exit;
 	}
 
+	bus_register_notifier(&serio_bus, &i8042_kbd_bind_notifier_block);
 	panic_blink = i8042_panic_blink;
 
 	return 0;
@@ -1543,6 +1577,7 @@ static void __exit i8042_exit(void)
 	platform_driver_unregister(&i8042_driver);
 	i8042_platform_exit();
 
+	bus_unregister_notifier(&serio_bus, &i8042_kbd_bind_notifier_block);
 	panic_blink = NULL;
 }
 
diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h
index fc080beffedc..1db0a40c9bab 100644
--- a/drivers/input/serio/i8042.h
+++ b/drivers/input/serio/i8042.h
@@ -73,6 +73,17 @@ static unsigned long i8042_start_time;
 			printk(KERN_DEBUG KBUILD_MODNAME ": [%d] " format,	\
 			       (int) (jiffies - i8042_start_time), ##arg);	\
 	} while (0)
+
+#define filter_dbg(filter, data, format, args...)		\
+	do {							\
+		if (!i8042_debug)				\
+			break;					\
+								\
+		if (!filter || i8042_unmask_kbd_data)		\
+			dbg("%02x " format, data, ##args);	\
+		else						\
+			dbg("** " format, ##args);		\
+	} while (0)
 #else
 #define dbg_init() do { } while (0)
 #define dbg(format, arg...)							\
@@ -80,6 +91,8 @@ static unsigned long i8042_start_time;
 		if (0)								\
 			printk(KERN_DEBUG pr_fmt(format), ##arg);		\
 	} while (0)
+
+#define filter_dbg(filter, data, format, args...) do { } while (0)
 #endif
 
 #endif /* _I8042_H */
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index a05a5179da32..8f828975ab10 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -49,8 +49,6 @@ static DEFINE_MUTEX(serio_mutex);
 
 static LIST_HEAD(serio_list);
 
-static struct bus_type serio_bus;
-
 static void serio_add_port(struct serio *serio);
 static int serio_reconnect_port(struct serio *serio);
 static void serio_disconnect_port(struct serio *serio);
@@ -1017,7 +1015,7 @@ irqreturn_t serio_interrupt(struct serio *serio,
 }
 EXPORT_SYMBOL(serio_interrupt);
 
-static struct bus_type serio_bus = {
+struct bus_type serio_bus = {
 	.name		= "serio",
 	.drv_groups	= serio_driver_groups,
 	.match		= serio_bus_match,
@@ -1029,6 +1027,7 @@ static struct bus_type serio_bus = {
 	.pm		= &serio_pm_ops,
 #endif
 };
+EXPORT_SYMBOL(serio_bus);
 
 static int __init serio_init(void)
 {
diff --git a/include/linux/serio.h b/include/linux/serio.h
index 9f779c7a2da4..df4ab5de1586 100644
--- a/include/linux/serio.h
+++ b/include/linux/serio.h
@@ -18,6 +18,8 @@
 #include <linux/mod_devicetable.h>
 #include <uapi/linux/serio.h>
 
+extern struct bus_type serio_bus;
+
 struct serio {
 	void *port_data;
 
-- 
cgit v1.2.3


From cee3d8ccbecb8af6788edaaac46befca78b000dc Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Thu, 16 Jul 2015 10:32:40 -0700
Subject: Input: ambakmi - fix system PM by converting to modern callbacks

The legacy system PM support has long time ago been dropped from the
AMBA bus. Align to that by converting to the modern system PM
callbacks.

Fixes: 26825cfd90f9 (ARM: 7914/1: amba: Drop legacy PM support ...)
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/serio/ambakmi.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/input/serio/ambakmi.c b/drivers/input/serio/ambakmi.c
index 8b748d99b934..c6606cacb6a7 100644
--- a/drivers/input/serio/ambakmi.c
+++ b/drivers/input/serio/ambakmi.c
@@ -175,9 +175,9 @@ static int amba_kmi_remove(struct amba_device *dev)
 	return 0;
 }
 
-static int amba_kmi_resume(struct amba_device *dev)
+static int __maybe_unused amba_kmi_resume(struct device *dev)
 {
-	struct amba_kmi_port *kmi = amba_get_drvdata(dev);
+	struct amba_kmi_port *kmi = dev_get_drvdata(dev);
 
 	/* kick the serio layer to rescan this port */
 	serio_reconnect(kmi->io);
@@ -185,6 +185,8 @@ static int amba_kmi_resume(struct amba_device *dev)
 	return 0;
 }
 
+static SIMPLE_DEV_PM_OPS(amba_kmi_dev_pm_ops, NULL, amba_kmi_resume);
+
 static struct amba_id amba_kmi_idtable[] = {
 	{
 		.id	= 0x00041050,
@@ -199,11 +201,11 @@ static struct amba_driver ambakmi_driver = {
 	.drv		= {
 		.name	= "kmi-pl050",
 		.owner	= THIS_MODULE,
+		.pm	= &amba_kmi_dev_pm_ops,
 	},
 	.id_table	= amba_kmi_idtable,
 	.probe		= amba_kmi_probe,
 	.remove		= amba_kmi_remove,
-	.resume		= amba_kmi_resume,
 };
 
 module_amba_driver(ambakmi_driver);
-- 
cgit v1.2.3


From 800e3b9a68011c4124f380d50e2117523c41a843 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Fri, 17 Jul 2015 16:44:05 -0700
Subject: Input: drop owner assignment from i2c_driver

i2c_driver does not need to set an owner because i2c_register_driver()
will set it.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/keyboard/adp5589-keys.c       | 1 -
 drivers/input/keyboard/cap11xx.c            | 1 -
 drivers/input/keyboard/lm8333.c             | 1 -
 drivers/input/keyboard/mcs_touchkey.c       | 1 -
 drivers/input/keyboard/mpr121_touchkey.c    | 1 -
 drivers/input/keyboard/qt1070.c             | 1 -
 drivers/input/keyboard/qt2160.c             | 1 -
 drivers/input/keyboard/tca8418_keypad.c     | 1 -
 drivers/input/misc/adxl34x-i2c.c            | 1 -
 drivers/input/misc/bma150.c                 | 1 -
 drivers/input/misc/cma3000_d0x_i2c.c        | 1 -
 drivers/input/misc/drv260x.c                | 1 -
 drivers/input/misc/drv2665.c                | 1 -
 drivers/input/misc/drv2667.c                | 1 -
 drivers/input/misc/gp2ap002a00f.c           | 1 -
 drivers/input/misc/kxtj9.c                  | 1 -
 drivers/input/misc/mpu3050.c                | 1 -
 drivers/input/misc/pcf8574_keypad.c         | 1 -
 drivers/input/mouse/cyapa.c                 | 1 -
 drivers/input/mouse/elan_i2c_core.c         | 1 -
 drivers/input/mouse/synaptics_i2c.c         | 1 -
 drivers/input/touchscreen/ad7879-i2c.c      | 1 -
 drivers/input/touchscreen/ar1021_i2c.c      | 1 -
 drivers/input/touchscreen/atmel_mxt_ts.c    | 1 -
 drivers/input/touchscreen/auo-pixcir-ts.c   | 1 -
 drivers/input/touchscreen/bu21013_ts.c      | 1 -
 drivers/input/touchscreen/chipone_icn8318.c | 1 -
 drivers/input/touchscreen/cy8ctmg110_ts.c   | 1 -
 drivers/input/touchscreen/cyttsp4_i2c.c     | 1 -
 drivers/input/touchscreen/cyttsp_i2c.c      | 1 -
 drivers/input/touchscreen/edt-ft5x06.c      | 1 -
 drivers/input/touchscreen/egalax_ts.c       | 1 -
 drivers/input/touchscreen/elants_i2c.c      | 1 -
 drivers/input/touchscreen/goodix.c          | 1 -
 drivers/input/touchscreen/ili210x.c         | 1 -
 drivers/input/touchscreen/max11801_ts.c     | 1 -
 drivers/input/touchscreen/mms114.c          | 1 -
 drivers/input/touchscreen/pixcir_i2c_ts.c   | 1 -
 drivers/input/touchscreen/st1232.c          | 1 -
 drivers/input/touchscreen/tsc2007.c         | 1 -
 drivers/input/touchscreen/wacom_i2c.c       | 1 -
 drivers/input/touchscreen/zforce_ts.c       | 1 -
 42 files changed, 42 deletions(-)

diff --git a/drivers/input/keyboard/adp5589-keys.c b/drivers/input/keyboard/adp5589-keys.c
index 6ed83cf8b74e..4d446d5085aa 100644
--- a/drivers/input/keyboard/adp5589-keys.c
+++ b/drivers/input/keyboard/adp5589-keys.c
@@ -1097,7 +1097,6 @@ MODULE_DEVICE_TABLE(i2c, adp5589_id);
 static struct i2c_driver adp5589_driver = {
 	.driver = {
 		.name = KBUILD_MODNAME,
-		.owner = THIS_MODULE,
 		.pm = &adp5589_dev_pm_ops,
 	},
 	.probe = adp5589_probe,
diff --git a/drivers/input/keyboard/cap11xx.c b/drivers/input/keyboard/cap11xx.c
index f07461a64d85..b58fd9d72d92 100644
--- a/drivers/input/keyboard/cap11xx.c
+++ b/drivers/input/keyboard/cap11xx.c
@@ -361,7 +361,6 @@ MODULE_DEVICE_TABLE(i2c, cap11xx_i2c_ids);
 static struct i2c_driver cap11xx_i2c_driver = {
 	.driver = {
 		.name	= "cap11xx",
-		.owner	= THIS_MODULE,
 		.of_match_table = cap11xx_dt_ids,
 	},
 	.id_table	= cap11xx_i2c_ids,
diff --git a/drivers/input/keyboard/lm8333.c b/drivers/input/keyboard/lm8333.c
index 0ad422b8a260..c717e8f3c964 100644
--- a/drivers/input/keyboard/lm8333.c
+++ b/drivers/input/keyboard/lm8333.c
@@ -223,7 +223,6 @@ MODULE_DEVICE_TABLE(i2c, lm8333_id);
 static struct i2c_driver lm8333_driver = {
 	.driver = {
 		.name		= "lm8333",
-		.owner		= THIS_MODULE,
 	},
 	.probe		= lm8333_probe,
 	.remove		= lm8333_remove,
diff --git a/drivers/input/keyboard/mcs_touchkey.c b/drivers/input/keyboard/mcs_touchkey.c
index 375b05ca8e2a..31090d71a685 100644
--- a/drivers/input/keyboard/mcs_touchkey.c
+++ b/drivers/input/keyboard/mcs_touchkey.c
@@ -265,7 +265,6 @@ MODULE_DEVICE_TABLE(i2c, mcs_touchkey_id);
 static struct i2c_driver mcs_touchkey_driver = {
 	.driver = {
 		.name	= "mcs_touchkey",
-		.owner	= THIS_MODULE,
 		.pm	= &mcs_touchkey_pm_ops,
 	},
 	.probe		= mcs_touchkey_probe,
diff --git a/drivers/input/keyboard/mpr121_touchkey.c b/drivers/input/keyboard/mpr121_touchkey.c
index 3aa2ec45bcab..0fd612dd76ed 100644
--- a/drivers/input/keyboard/mpr121_touchkey.c
+++ b/drivers/input/keyboard/mpr121_touchkey.c
@@ -305,7 +305,6 @@ MODULE_DEVICE_TABLE(i2c, mpr121_id);
 static struct i2c_driver mpr_touchkey_driver = {
 	.driver = {
 		.name	= "mpr121",
-		.owner	= THIS_MODULE,
 		.pm	= &mpr121_touchkey_pm_ops,
 	},
 	.id_table	= mpr121_id,
diff --git a/drivers/input/keyboard/qt1070.c b/drivers/input/keyboard/qt1070.c
index 52cd6e88acd7..5a5778729e37 100644
--- a/drivers/input/keyboard/qt1070.c
+++ b/drivers/input/keyboard/qt1070.c
@@ -277,7 +277,6 @@ MODULE_DEVICE_TABLE(i2c, qt1070_id);
 static struct i2c_driver qt1070_driver = {
 	.driver	= {
 		.name	= "qt1070",
-		.owner	= THIS_MODULE,
 		.pm	= &qt1070_pm_ops,
 	},
 	.id_table	= qt1070_id,
diff --git a/drivers/input/keyboard/qt2160.c b/drivers/input/keyboard/qt2160.c
index 819b22897c13..43b86482dda0 100644
--- a/drivers/input/keyboard/qt2160.c
+++ b/drivers/input/keyboard/qt2160.c
@@ -497,7 +497,6 @@ MODULE_DEVICE_TABLE(i2c, qt2160_idtable);
 static struct i2c_driver qt2160_driver = {
 	.driver = {
 		.name	= "qt2160",
-		.owner  = THIS_MODULE,
 	},
 
 	.id_table	= qt2160_idtable,
diff --git a/drivers/input/keyboard/tca8418_keypad.c b/drivers/input/keyboard/tca8418_keypad.c
index 4e491c1762cf..9002298698fc 100644
--- a/drivers/input/keyboard/tca8418_keypad.c
+++ b/drivers/input/keyboard/tca8418_keypad.c
@@ -404,7 +404,6 @@ MODULE_ALIAS("i2c:tca8418");
 static struct i2c_driver tca8418_keypad_driver = {
 	.driver = {
 		.name	= TCA8418_NAME,
-		.owner	= THIS_MODULE,
 		.of_match_table = of_match_ptr(tca8418_dt_ids),
 	},
 	.probe		= tca8418_keypad_probe,
diff --git a/drivers/input/misc/adxl34x-i2c.c b/drivers/input/misc/adxl34x-i2c.c
index bdb5d03b296e..a8b0a2eec344 100644
--- a/drivers/input/misc/adxl34x-i2c.c
+++ b/drivers/input/misc/adxl34x-i2c.c
@@ -158,7 +158,6 @@ MODULE_DEVICE_TABLE(of, adxl34x_of_id);
 static struct i2c_driver adxl34x_driver = {
 	.driver = {
 		.name = "adxl34x",
-		.owner = THIS_MODULE,
 		.pm = &adxl34x_i2c_pm,
 		.of_match_table = of_match_ptr(adxl34x_of_id),
 	},
diff --git a/drivers/input/misc/bma150.c b/drivers/input/misc/bma150.c
index c2780493b0ed..1d0e61d7c131 100644
--- a/drivers/input/misc/bma150.c
+++ b/drivers/input/misc/bma150.c
@@ -653,7 +653,6 @@ MODULE_DEVICE_TABLE(i2c, bma150_id);
 
 static struct i2c_driver bma150_driver = {
 	.driver = {
-		.owner	= THIS_MODULE,
 		.name	= BMA150_DRIVER,
 		.pm	= &bma150_pm,
 	},
diff --git a/drivers/input/misc/cma3000_d0x_i2c.c b/drivers/input/misc/cma3000_d0x_i2c.c
index 4fdef98ceb56..c7021916b64b 100644
--- a/drivers/input/misc/cma3000_d0x_i2c.c
+++ b/drivers/input/misc/cma3000_d0x_i2c.c
@@ -118,7 +118,6 @@ static struct i2c_driver cma3000_i2c_driver = {
 	.id_table	= cma3000_i2c_id,
 	.driver = {
 		.name	= "cma3000_i2c_accl",
-		.owner	= THIS_MODULE,
 #ifdef CONFIG_PM
 		.pm	= &cma3000_i2c_pm_ops,
 #endif
diff --git a/drivers/input/misc/drv260x.c b/drivers/input/misc/drv260x.c
index 0e3af55d9e25..e65496e6463d 100644
--- a/drivers/input/misc/drv260x.c
+++ b/drivers/input/misc/drv260x.c
@@ -720,7 +720,6 @@ static struct i2c_driver drv260x_driver = {
 	.probe		= drv260x_probe,
 	.driver		= {
 		.name	= "drv260x-haptics",
-		.owner	= THIS_MODULE,
 		.of_match_table = of_match_ptr(drv260x_of_match),
 		.pm	= &drv260x_pm_ops,
 	},
diff --git a/drivers/input/misc/drv2665.c b/drivers/input/misc/drv2665.c
index e9501fdca5ef..327a63c2f07d 100644
--- a/drivers/input/misc/drv2665.c
+++ b/drivers/input/misc/drv2665.c
@@ -309,7 +309,6 @@ static struct i2c_driver drv2665_driver = {
 	.probe		= drv2665_probe,
 	.driver		= {
 		.name	= "drv2665-haptics",
-		.owner	= THIS_MODULE,
 		.of_match_table = of_match_ptr(drv2665_of_match),
 		.pm	= &drv2665_pm_ops,
 	},
diff --git a/drivers/input/misc/drv2667.c b/drivers/input/misc/drv2667.c
index a231342207f9..46a4be4e9dc3 100644
--- a/drivers/input/misc/drv2667.c
+++ b/drivers/input/misc/drv2667.c
@@ -484,7 +484,6 @@ static struct i2c_driver drv2667_driver = {
 	.probe		= drv2667_probe,
 	.driver		= {
 		.name	= "drv2667-haptics",
-		.owner	= THIS_MODULE,
 		.of_match_table = of_match_ptr(drv2667_of_match),
 		.pm	= &drv2667_pm_ops,
 	},
diff --git a/drivers/input/misc/gp2ap002a00f.c b/drivers/input/misc/gp2ap002a00f.c
index 0ac176d66a6f..ba301af91b95 100644
--- a/drivers/input/misc/gp2ap002a00f.c
+++ b/drivers/input/misc/gp2ap002a00f.c
@@ -271,7 +271,6 @@ static const struct i2c_device_id gp2a_i2c_id[] = {
 static struct i2c_driver gp2a_i2c_driver = {
 	.driver = {
 		.name	= GP2A_I2C_NAME,
-		.owner	= THIS_MODULE,
 		.pm	= &gp2a_pm,
 	},
 	.probe		= gp2a_probe,
diff --git a/drivers/input/misc/kxtj9.c b/drivers/input/misc/kxtj9.c
index 6e29349da537..e058d711256a 100644
--- a/drivers/input/misc/kxtj9.c
+++ b/drivers/input/misc/kxtj9.c
@@ -658,7 +658,6 @@ MODULE_DEVICE_TABLE(i2c, kxtj9_id);
 static struct i2c_driver kxtj9_driver = {
 	.driver = {
 		.name	= NAME,
-		.owner	= THIS_MODULE,
 		.pm	= &kxtj9_pm_ops,
 	},
 	.probe		= kxtj9_probe,
diff --git a/drivers/input/misc/mpu3050.c b/drivers/input/misc/mpu3050.c
index 5e5051351c3a..f088db31cfc7 100644
--- a/drivers/input/misc/mpu3050.c
+++ b/drivers/input/misc/mpu3050.c
@@ -466,7 +466,6 @@ MODULE_DEVICE_TABLE(of, mpu3050_of_match);
 static struct i2c_driver mpu3050_i2c_driver = {
 	.driver	= {
 		.name	= "mpu3050",
-		.owner	= THIS_MODULE,
 		.pm	= &mpu3050_pm,
 		.of_match_table = mpu3050_of_match,
 	},
diff --git a/drivers/input/misc/pcf8574_keypad.c b/drivers/input/misc/pcf8574_keypad.c
index 97f711a7bd20..4abdf1efb3e0 100644
--- a/drivers/input/misc/pcf8574_keypad.c
+++ b/drivers/input/misc/pcf8574_keypad.c
@@ -208,7 +208,6 @@ MODULE_DEVICE_TABLE(i2c, pcf8574_kp_id);
 static struct i2c_driver pcf8574_kp_driver = {
 	.driver = {
 		.name  = DRV_NAME,
-		.owner = THIS_MODULE,
 #ifdef CONFIG_PM
 		.pm = &pcf8574_kp_pm_ops,
 #endif
diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c
index efe148474e7f..dfbfd494bb1f 100644
--- a/drivers/input/mouse/cyapa.c
+++ b/drivers/input/mouse/cyapa.c
@@ -1382,7 +1382,6 @@ MODULE_DEVICE_TABLE(acpi, cyapa_acpi_id);
 static struct i2c_driver cyapa_driver = {
 	.driver = {
 		.name = "cyapa",
-		.owner = THIS_MODULE,
 		.pm = &cyapa_pm_ops,
 		.acpi_match_table = ACPI_PTR(cyapa_acpi_id),
 	},
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index 62641f2adaf7..e7ef4ab1b37d 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -1183,7 +1183,6 @@ MODULE_DEVICE_TABLE(of, elan_of_match);
 static struct i2c_driver elan_driver = {
 	.driver = {
 		.name	= DRIVER_NAME,
-		.owner	= THIS_MODULE,
 		.pm	= &elan_pm_ops,
 		.acpi_match_table = ACPI_PTR(elan_acpi_id),
 		.of_match_table = of_match_ptr(elan_of_match),
diff --git a/drivers/input/mouse/synaptics_i2c.c b/drivers/input/mouse/synaptics_i2c.c
index ffceedcaf3c8..aa7c5da60800 100644
--- a/drivers/input/mouse/synaptics_i2c.c
+++ b/drivers/input/mouse/synaptics_i2c.c
@@ -655,7 +655,6 @@ MODULE_DEVICE_TABLE(i2c, synaptics_i2c_id_table);
 static struct i2c_driver synaptics_i2c_driver = {
 	.driver = {
 		.name	= DRIVER_NAME,
-		.owner	= THIS_MODULE,
 		.pm	= &synaptics_i2c_pm,
 	},
 
diff --git a/drivers/input/touchscreen/ad7879-i2c.c b/drivers/input/touchscreen/ad7879-i2c.c
index dcf390771549..d66962c5b1c2 100644
--- a/drivers/input/touchscreen/ad7879-i2c.c
+++ b/drivers/input/touchscreen/ad7879-i2c.c
@@ -94,7 +94,6 @@ MODULE_DEVICE_TABLE(i2c, ad7879_id);
 static struct i2c_driver ad7879_i2c_driver = {
 	.driver = {
 		.name	= "ad7879",
-		.owner	= THIS_MODULE,
 		.pm	= &ad7879_pm_ops,
 	},
 	.probe		= ad7879_i2c_probe,
diff --git a/drivers/input/touchscreen/ar1021_i2c.c b/drivers/input/touchscreen/ar1021_i2c.c
index f0b954d46a25..71b5a634cf6d 100644
--- a/drivers/input/touchscreen/ar1021_i2c.c
+++ b/drivers/input/touchscreen/ar1021_i2c.c
@@ -166,7 +166,6 @@ MODULE_DEVICE_TABLE(of, ar1021_i2c_of_match);
 static struct i2c_driver ar1021_i2c_driver = {
 	.driver	= {
 		.name	= "ar1021_i2c",
-		.owner	= THIS_MODULE,
 		.pm	= &ar1021_i2c_pm,
 		.of_match_table = ar1021_i2c_of_match,
 	},
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index dfc7309e3d38..8efe7a002f1e 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -2666,7 +2666,6 @@ MODULE_DEVICE_TABLE(i2c, mxt_id);
 static struct i2c_driver mxt_driver = {
 	.driver = {
 		.name	= "atmel_mxt_ts",
-		.owner	= THIS_MODULE,
 		.of_match_table = of_match_ptr(mxt_of_match),
 		.acpi_match_table = ACPI_PTR(mxt_acpi_id),
 		.pm	= &mxt_pm_ops,
diff --git a/drivers/input/touchscreen/auo-pixcir-ts.c b/drivers/input/touchscreen/auo-pixcir-ts.c
index 40e02dd5b2f9..38c06f754acd 100644
--- a/drivers/input/touchscreen/auo-pixcir-ts.c
+++ b/drivers/input/touchscreen/auo-pixcir-ts.c
@@ -686,7 +686,6 @@ MODULE_DEVICE_TABLE(of, auo_pixcir_ts_dt_idtable);
 
 static struct i2c_driver auo_pixcir_driver = {
 	.driver = {
-		.owner	= THIS_MODULE,
 		.name	= "auo_pixcir_ts",
 		.pm	= &auo_pixcir_pm_ops,
 		.of_match_table	= of_match_ptr(auo_pixcir_ts_dt_idtable),
diff --git a/drivers/input/touchscreen/bu21013_ts.c b/drivers/input/touchscreen/bu21013_ts.c
index b9b5ddad6658..931417eb4f5a 100644
--- a/drivers/input/touchscreen/bu21013_ts.c
+++ b/drivers/input/touchscreen/bu21013_ts.c
@@ -716,7 +716,6 @@ MODULE_DEVICE_TABLE(i2c, bu21013_id);
 static struct i2c_driver bu21013_driver = {
 	.driver	= {
 		.name	=	DRIVER_TP,
-		.owner	=	THIS_MODULE,
 #ifdef CONFIG_PM
 		.pm	=	&bu21013_dev_pm_ops,
 #endif
diff --git a/drivers/input/touchscreen/chipone_icn8318.c b/drivers/input/touchscreen/chipone_icn8318.c
index 32e9db0e04bf..22a6fead8cfb 100644
--- a/drivers/input/touchscreen/chipone_icn8318.c
+++ b/drivers/input/touchscreen/chipone_icn8318.c
@@ -300,7 +300,6 @@ MODULE_DEVICE_TABLE(i2c, icn8318_i2c_id);
 
 static struct i2c_driver icn8318_driver = {
 	.driver = {
-		.owner	= THIS_MODULE,
 		.name	= "chipone_icn8318",
 		.pm	= &icn8318_pm_ops,
 		.of_match_table = icn8318_of_match,
diff --git a/drivers/input/touchscreen/cy8ctmg110_ts.c b/drivers/input/touchscreen/cy8ctmg110_ts.c
index f2119ee0e21b..cc1d1350074e 100644
--- a/drivers/input/touchscreen/cy8ctmg110_ts.c
+++ b/drivers/input/touchscreen/cy8ctmg110_ts.c
@@ -347,7 +347,6 @@ MODULE_DEVICE_TABLE(i2c, cy8ctmg110_idtable);
 
 static struct i2c_driver cy8ctmg110_driver = {
 	.driver		= {
-		.owner	= THIS_MODULE,
 		.name	= CY8CTMG110_DRIVER_NAME,
 		.pm	= &cy8ctmg110_pm,
 	},
diff --git a/drivers/input/touchscreen/cyttsp4_i2c.c b/drivers/input/touchscreen/cyttsp4_i2c.c
index 8e2012c79058..9a323dd915de 100644
--- a/drivers/input/touchscreen/cyttsp4_i2c.c
+++ b/drivers/input/touchscreen/cyttsp4_i2c.c
@@ -74,7 +74,6 @@ MODULE_DEVICE_TABLE(i2c, cyttsp4_i2c_id);
 static struct i2c_driver cyttsp4_i2c_driver = {
 	.driver = {
 		.name	= CYTTSP4_I2C_NAME,
-		.owner	= THIS_MODULE,
 		.pm	= &cyttsp4_pm_ops,
 	},
 	.probe		= cyttsp4_i2c_probe,
diff --git a/drivers/input/touchscreen/cyttsp_i2c.c b/drivers/input/touchscreen/cyttsp_i2c.c
index 63104a86a9bd..519e2de2f8df 100644
--- a/drivers/input/touchscreen/cyttsp_i2c.c
+++ b/drivers/input/touchscreen/cyttsp_i2c.c
@@ -74,7 +74,6 @@ MODULE_DEVICE_TABLE(i2c, cyttsp_i2c_id);
 static struct i2c_driver cyttsp_i2c_driver = {
 	.driver = {
 		.name	= CY_I2C_NAME,
-		.owner	= THIS_MODULE,
 		.pm	= &cyttsp_pm_ops,
 	},
 	.probe		= cyttsp_i2c_probe,
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index 8f8f3199be39..48de1e8b3c93 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -1134,7 +1134,6 @@ MODULE_DEVICE_TABLE(of, edt_ft5x06_of_match);
 
 static struct i2c_driver edt_ft5x06_ts_driver = {
 	.driver = {
-		.owner = THIS_MODULE,
 		.name = "edt_ft5x06",
 		.of_match_table = of_match_ptr(edt_ft5x06_of_match),
 		.pm = &edt_ft5x06_ts_pm_ops,
diff --git a/drivers/input/touchscreen/egalax_ts.c b/drivers/input/touchscreen/egalax_ts.c
index 4c56299284ef..7bce2d90ec74 100644
--- a/drivers/input/touchscreen/egalax_ts.c
+++ b/drivers/input/touchscreen/egalax_ts.c
@@ -268,7 +268,6 @@ static const struct of_device_id egalax_ts_dt_ids[] = {
 static struct i2c_driver egalax_ts_driver = {
 	.driver = {
 		.name	= "egalax_ts",
-		.owner	= THIS_MODULE,
 		.pm	= &egalax_ts_pm_ops,
 		.of_match_table	= egalax_ts_dt_ids,
 	},
diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c
index 0efd766a545b..746137694137 100644
--- a/drivers/input/touchscreen/elants_i2c.c
+++ b/drivers/input/touchscreen/elants_i2c.c
@@ -1261,7 +1261,6 @@ static struct i2c_driver elants_i2c_driver = {
 	.id_table = elants_i2c_id,
 	.driver = {
 		.name = DEVICE_NAME,
-		.owner = THIS_MODULE,
 		.pm = &elants_i2c_pm_ops,
 		.acpi_match_table = ACPI_PTR(elants_acpi_id),
 		.of_match_table = of_match_ptr(elants_of_match),
diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c
index b4d12e29abff..ccd9dca61195 100644
--- a/drivers/input/touchscreen/goodix.c
+++ b/drivers/input/touchscreen/goodix.c
@@ -412,7 +412,6 @@ static struct i2c_driver goodix_ts_driver = {
 	.id_table = goodix_ts_id,
 	.driver = {
 		.name = "Goodix-TS",
-		.owner = THIS_MODULE,
 		.acpi_match_table = ACPI_PTR(goodix_acpi_match),
 		.of_match_table = of_match_ptr(goodix_of_match),
 	},
diff --git a/drivers/input/touchscreen/ili210x.c b/drivers/input/touchscreen/ili210x.c
index da6dc819c846..cf0dc2f0b1be 100644
--- a/drivers/input/touchscreen/ili210x.c
+++ b/drivers/input/touchscreen/ili210x.c
@@ -343,7 +343,6 @@ MODULE_DEVICE_TABLE(i2c, ili210x_i2c_id);
 static struct i2c_driver ili210x_ts_driver = {
 	.driver = {
 		.name = "ili210x_i2c",
-		.owner = THIS_MODULE,
 		.pm = &ili210x_i2c_pm,
 	},
 	.id_table = ili210x_i2c_id,
diff --git a/drivers/input/touchscreen/max11801_ts.c b/drivers/input/touchscreen/max11801_ts.c
index a68ec142ee9a..82079cde849c 100644
--- a/drivers/input/touchscreen/max11801_ts.c
+++ b/drivers/input/touchscreen/max11801_ts.c
@@ -229,7 +229,6 @@ MODULE_DEVICE_TABLE(i2c, max11801_ts_id);
 static struct i2c_driver max11801_ts_driver = {
 	.driver = {
 		.name	= "max11801_ts",
-		.owner	= THIS_MODULE,
 	},
 	.id_table	= max11801_ts_id,
 	.probe		= max11801_ts_probe,
diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c
index 67c0d31613d8..6b69f461733c 100644
--- a/drivers/input/touchscreen/mms114.c
+++ b/drivers/input/touchscreen/mms114.c
@@ -577,7 +577,6 @@ static const struct of_device_id mms114_dt_match[] = {
 static struct i2c_driver mms114_driver = {
 	.driver = {
 		.name	= "mms114",
-		.owner	= THIS_MODULE,
 		.pm	= &mms114_pm_ops,
 		.of_match_table = of_match_ptr(mms114_dt_match),
 	},
diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c
index 68d0d549797c..4c71d631cbae 100644
--- a/drivers/input/touchscreen/pixcir_i2c_ts.c
+++ b/drivers/input/touchscreen/pixcir_i2c_ts.c
@@ -604,7 +604,6 @@ MODULE_DEVICE_TABLE(of, pixcir_of_match);
 
 static struct i2c_driver pixcir_i2c_ts_driver = {
 	.driver = {
-		.owner	= THIS_MODULE,
 		.name	= "pixcir_ts",
 		.pm	= &pixcir_dev_pm_ops,
 		.of_match_table = of_match_ptr(pixcir_of_match),
diff --git a/drivers/input/touchscreen/st1232.c b/drivers/input/touchscreen/st1232.c
index 697e26e52d54..e943678ce54c 100644
--- a/drivers/input/touchscreen/st1232.c
+++ b/drivers/input/touchscreen/st1232.c
@@ -296,7 +296,6 @@ static struct i2c_driver st1232_ts_driver = {
 	.id_table	= st1232_ts_id,
 	.driver = {
 		.name	= ST1232_TS_NAME,
-		.owner	= THIS_MODULE,
 		.of_match_table = of_match_ptr(st1232_ts_dt_ids),
 		.pm	= &st1232_ts_pm_ops,
 	},
diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c
index ccc8aa615709..5d0cd51c6f41 100644
--- a/drivers/input/touchscreen/tsc2007.c
+++ b/drivers/input/touchscreen/tsc2007.c
@@ -482,7 +482,6 @@ MODULE_DEVICE_TABLE(of, tsc2007_of_match);
 
 static struct i2c_driver tsc2007_driver = {
 	.driver = {
-		.owner	= THIS_MODULE,
 		.name	= "tsc2007",
 		.of_match_table = of_match_ptr(tsc2007_of_match),
 	},
diff --git a/drivers/input/touchscreen/wacom_i2c.c b/drivers/input/touchscreen/wacom_i2c.c
index 32f8ac003936..8d7a2852caef 100644
--- a/drivers/input/touchscreen/wacom_i2c.c
+++ b/drivers/input/touchscreen/wacom_i2c.c
@@ -271,7 +271,6 @@ MODULE_DEVICE_TABLE(i2c, wacom_i2c_id);
 static struct i2c_driver wacom_i2c_driver = {
 	.driver	= {
 		.name	= "wacom_i2c",
-		.owner	= THIS_MODULE,
 		.pm	= &wacom_i2c_pm,
 	},
 
diff --git a/drivers/input/touchscreen/zforce_ts.c b/drivers/input/touchscreen/zforce_ts.c
index c4cffcfb03d3..d00e1e33b657 100644
--- a/drivers/input/touchscreen/zforce_ts.c
+++ b/drivers/input/touchscreen/zforce_ts.c
@@ -919,7 +919,6 @@ MODULE_DEVICE_TABLE(of, zforce_dt_idtable);
 
 static struct i2c_driver zforce_driver = {
 	.driver = {
-		.owner	= THIS_MODULE,
 		.name	= "zforce-ts",
 		.pm	= &zforce_pm_ops,
 		.of_match_table	= of_match_ptr(zforce_dt_idtable),
-- 
cgit v1.2.3


From dd1b85dc446b7cfaeaa7e250d2ff2acc44a0d51d Mon Sep 17 00:00:00 2001
From: Dirk Behme <dirk.behme@de.bosch.com>
Date: Mon, 20 Jul 2015 09:50:37 -0700
Subject: Input: zforce - don't invert the interrupt GPIO

Commit 2d53809594af ("Input: zforce_ts - convert to use the gpiod
interface") converted this driver to use the gpiod functions. These
functions take the active low property into account, so we don't have
to invert the result of gpiod_get_value_cansleep(). This has been
missed in that commit. Fix it.

Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/zforce_ts.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/zforce_ts.c b/drivers/input/touchscreen/zforce_ts.c
index d00e1e33b657..0aa934c3540e 100644
--- a/drivers/input/touchscreen/zforce_ts.c
+++ b/drivers/input/touchscreen/zforce_ts.c
@@ -510,7 +510,7 @@ static irqreturn_t zforce_irq_thread(int irq, void *dev_id)
 	if (!ts->suspending && device_may_wakeup(&client->dev))
 		pm_stay_awake(&client->dev);
 
-	while (!gpiod_get_value_cansleep(ts->gpio_int)) {
+	while (gpiod_get_value_cansleep(ts->gpio_int)) {
 		ret = zforce_read_packet(ts, payload_buffer);
 		if (ret < 0) {
 			dev_err(&client->dev,
-- 
cgit v1.2.3


From 6ccfe64c770139675a080ee5029ded7d89d9ea0d Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Mon, 20 Jul 2015 09:56:18 -0700
Subject: Input: elan_i2c - enable ELAN0600 acpi panels

ELAN0600 seems to work just fine in mouse emulation mode through i2c-hid,
but to have full raw touch support we need to register it in elan_i2c.ko

Reported-and-tested-by: Alessio Treglia <alessio@debian.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/hid/hid-core.c              | 1 +
 drivers/input/mouse/elan_i2c_core.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 56ce8c2b5530..f3133e49ba0c 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2238,6 +2238,7 @@ static const struct hid_device_id hid_ignore_list[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) },
+	{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, 0x0400) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index e7ef4ab1b37d..4a5d6ee5caaf 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -1167,6 +1167,7 @@ MODULE_DEVICE_TABLE(i2c, elan_id);
 #ifdef CONFIG_ACPI
 static const struct acpi_device_id elan_acpi_id[] = {
 	{ "ELAN0000", 0 },
+	{ "ELAN0600", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, elan_acpi_id);
-- 
cgit v1.2.3


From 02b0b79c30076aaa33ee9134546130eb62b88078 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Fri, 17 Jul 2015 14:59:18 -0700
Subject: Input: pmic8xxx-pwrkey - support shutdown

On pm8xxx PMICs, shutdown and restart are signaled to the PMIC via a pin
called PS_HOLD. When this pin goes low, the PMIC performs a configurable
power sequence. Add a .shutdown hook so that we can properly configure this
power sequence for shutdown or restart depending on the system state.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/misc/pmic8xxx-pwrkey.c | 268 ++++++++++++++++++++++++++++++++++-
 1 file changed, 266 insertions(+), 2 deletions(-)

diff --git a/drivers/input/misc/pmic8xxx-pwrkey.c b/drivers/input/misc/pmic8xxx-pwrkey.c
index c4ca20e63221..3f02e0e03d12 100644
--- a/drivers/input/misc/pmic8xxx-pwrkey.c
+++ b/drivers/input/misc/pmic8xxx-pwrkey.c
@@ -20,17 +20,72 @@
 #include <linux/regmap.h>
 #include <linux/log2.h>
 #include <linux/of.h>
+#include <linux/of_device.h>
 
 #define PON_CNTL_1 0x1C
 #define PON_CNTL_PULL_UP BIT(7)
 #define PON_CNTL_TRIG_DELAY_MASK (0x7)
+#define PON_CNTL_1_PULL_UP_EN			0xe0
+#define PON_CNTL_1_USB_PWR_EN			0x10
+#define PON_CNTL_1_WD_EN_RESET			0x08
+
+#define PM8058_SLEEP_CTRL			0x02b
+#define PM8921_SLEEP_CTRL			0x10a
+
+#define SLEEP_CTRL_SMPL_EN_RESET		0x04
+
+/* Regulator master enable addresses */
+#define REG_PM8058_VREG_EN_MSM			0x018
+#define REG_PM8058_VREG_EN_GRP_5_4		0x1c8
+
+/* Regulator control registers for shutdown/reset */
+#define PM8058_S0_CTRL				0x004
+#define PM8058_S1_CTRL				0x005
+#define PM8058_S3_CTRL				0x111
+#define PM8058_L21_CTRL				0x120
+#define PM8058_L22_CTRL				0x121
+
+#define PM8058_REGULATOR_ENABLE_MASK		0x80
+#define PM8058_REGULATOR_ENABLE			0x80
+#define PM8058_REGULATOR_DISABLE		0x00
+#define PM8058_REGULATOR_PULL_DOWN_MASK		0x40
+#define PM8058_REGULATOR_PULL_DOWN_EN		0x40
+
+/* Buck CTRL register */
+#define PM8058_SMPS_LEGACY_VREF_SEL		0x20
+#define PM8058_SMPS_LEGACY_VPROG_MASK		0x1f
+#define PM8058_SMPS_ADVANCED_BAND_MASK		0xC0
+#define PM8058_SMPS_ADVANCED_BAND_SHIFT		6
+#define PM8058_SMPS_ADVANCED_VPROG_MASK		0x3f
+
+/* Buck TEST2 registers for shutdown/reset */
+#define PM8058_S0_TEST2				0x084
+#define PM8058_S1_TEST2				0x085
+#define PM8058_S3_TEST2				0x11a
+
+#define PM8058_REGULATOR_BANK_WRITE		0x80
+#define PM8058_REGULATOR_BANK_MASK		0x70
+#define PM8058_REGULATOR_BANK_SHIFT		4
+#define PM8058_REGULATOR_BANK_SEL(n)	((n) << PM8058_REGULATOR_BANK_SHIFT)
+
+/* Buck TEST2 register bank 1 */
+#define PM8058_SMPS_LEGACY_VLOW_SEL		0x01
+
+/* Buck TEST2 register bank 7 */
+#define PM8058_SMPS_ADVANCED_MODE_MASK		0x02
+#define PM8058_SMPS_ADVANCED_MODE		0x02
+#define PM8058_SMPS_LEGACY_MODE			0x00
 
 /**
  * struct pmic8xxx_pwrkey - pmic8xxx pwrkey information
  * @key_press_irq: key press irq number
+ * @regmap: device regmap
+ * @shutdown_fn: shutdown configuration function
  */
 struct pmic8xxx_pwrkey {
 	int key_press_irq;
+	struct regmap *regmap;
+	int (*shutdown_fn)(struct pmic8xxx_pwrkey *, bool);
 };
 
 static irqreturn_t pwrkey_press_irq(int irq, void *_pwr)
@@ -76,6 +131,212 @@ static int __maybe_unused pmic8xxx_pwrkey_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(pm8xxx_pwr_key_pm_ops,
 		pmic8xxx_pwrkey_suspend, pmic8xxx_pwrkey_resume);
 
+static void pmic8xxx_pwrkey_shutdown(struct platform_device *pdev)
+{
+	struct pmic8xxx_pwrkey *pwrkey = platform_get_drvdata(pdev);
+	int error;
+	u8 mask, val;
+	bool reset = system_state == SYSTEM_RESTART;
+
+	if (pwrkey->shutdown_fn) {
+		error = pwrkey->shutdown_fn(pwrkey, reset);
+		if (error)
+			return;
+	}
+
+	/*
+	 * Select action to perform (reset or shutdown) when PS_HOLD goes low.
+	 * Also ensure that KPD, CBL0, and CBL1 pull ups are enabled and that
+	 * USB charging is enabled.
+	 */
+	mask = PON_CNTL_1_PULL_UP_EN | PON_CNTL_1_USB_PWR_EN;
+	mask |= PON_CNTL_1_WD_EN_RESET;
+	val = mask;
+	if (!reset)
+		val &= ~PON_CNTL_1_WD_EN_RESET;
+
+	regmap_update_bits(pwrkey->regmap, PON_CNTL_1, mask, val);
+}
+
+/*
+ * Set an SMPS regulator to be disabled in its CTRL register, but enabled
+ * in the master enable register.  Also set it's pull down enable bit.
+ * Take care to make sure that the output voltage doesn't change if switching
+ * from advanced mode to legacy mode.
+ */
+static int pm8058_disable_smps_locally_set_pull_down(struct regmap *regmap,
+	u16 ctrl_addr, u16 test2_addr, u16 master_enable_addr,
+	u8 master_enable_bit)
+{
+	int error;
+	u8 vref_sel, vlow_sel, band, vprog, bank;
+	unsigned int reg;
+
+	bank = PM8058_REGULATOR_BANK_SEL(7);
+	error = regmap_write(regmap, test2_addr, bank);
+	if (error)
+		return error;
+
+	error = regmap_read(regmap, test2_addr, &reg);
+	if (error)
+		return error;
+
+	reg &= PM8058_SMPS_ADVANCED_MODE_MASK;
+	/* Check if in advanced mode. */
+	if (reg == PM8058_SMPS_ADVANCED_MODE) {
+		/* Determine current output voltage. */
+		error = regmap_read(regmap, ctrl_addr, &reg);
+		if (error)
+			return error;
+
+		band = reg & PM8058_SMPS_ADVANCED_BAND_MASK;
+		band >>= PM8058_SMPS_ADVANCED_BAND_SHIFT;
+		switch (band) {
+		case 3:
+			vref_sel = 0;
+			vlow_sel = 0;
+			break;
+		case 2:
+			vref_sel = PM8058_SMPS_LEGACY_VREF_SEL;
+			vlow_sel = 0;
+			break;
+		case 1:
+			vref_sel = PM8058_SMPS_LEGACY_VREF_SEL;
+			vlow_sel = PM8058_SMPS_LEGACY_VLOW_SEL;
+			break;
+		default:
+			pr_err("%s: regulator already disabled\n", __func__);
+			return -EPERM;
+		}
+		vprog = reg & PM8058_SMPS_ADVANCED_VPROG_MASK;
+		/* Round up if fine step is in use. */
+		vprog = (vprog + 1) >> 1;
+		if (vprog > PM8058_SMPS_LEGACY_VPROG_MASK)
+			vprog = PM8058_SMPS_LEGACY_VPROG_MASK;
+
+		/* Set VLOW_SEL bit. */
+		bank = PM8058_REGULATOR_BANK_SEL(1);
+		error = regmap_write(regmap, test2_addr, bank);
+		if (error)
+			return error;
+
+		error = regmap_update_bits(regmap, test2_addr,
+			PM8058_REGULATOR_BANK_WRITE | PM8058_REGULATOR_BANK_MASK
+				| PM8058_SMPS_LEGACY_VLOW_SEL,
+			PM8058_REGULATOR_BANK_WRITE |
+			PM8058_REGULATOR_BANK_SEL(1) | vlow_sel);
+		if (error)
+			return error;
+
+		/* Switch to legacy mode */
+		bank = PM8058_REGULATOR_BANK_SEL(7);
+		error = regmap_write(regmap, test2_addr, bank);
+		if (error)
+			return error;
+
+		error = regmap_update_bits(regmap, test2_addr,
+				PM8058_REGULATOR_BANK_WRITE |
+				PM8058_REGULATOR_BANK_MASK |
+				PM8058_SMPS_ADVANCED_MODE_MASK,
+				PM8058_REGULATOR_BANK_WRITE |
+				PM8058_REGULATOR_BANK_SEL(7) |
+				PM8058_SMPS_LEGACY_MODE);
+		if (error)
+			return error;
+
+		/* Enable locally, enable pull down, keep voltage the same. */
+		error = regmap_update_bits(regmap, ctrl_addr,
+			PM8058_REGULATOR_ENABLE_MASK |
+			PM8058_REGULATOR_PULL_DOWN_MASK |
+			PM8058_SMPS_LEGACY_VREF_SEL |
+			PM8058_SMPS_LEGACY_VPROG_MASK,
+			PM8058_REGULATOR_ENABLE | PM8058_REGULATOR_PULL_DOWN_EN
+				| vref_sel | vprog);
+		if (error)
+			return error;
+	}
+
+	/* Enable in master control register. */
+	error = regmap_update_bits(regmap, master_enable_addr,
+			master_enable_bit, master_enable_bit);
+	if (error)
+		return error;
+
+	/* Disable locally and enable pull down. */
+	return regmap_update_bits(regmap, ctrl_addr,
+		PM8058_REGULATOR_ENABLE_MASK | PM8058_REGULATOR_PULL_DOWN_MASK,
+		PM8058_REGULATOR_DISABLE | PM8058_REGULATOR_PULL_DOWN_EN);
+}
+
+static int pm8058_disable_ldo_locally_set_pull_down(struct regmap *regmap,
+		u16 ctrl_addr, u16 master_enable_addr, u8 master_enable_bit)
+{
+	int error;
+
+	/* Enable LDO in master control register. */
+	error = regmap_update_bits(regmap, master_enable_addr,
+			master_enable_bit, master_enable_bit);
+	if (error)
+		return error;
+
+	/* Disable LDO in CTRL register and set pull down */
+	return regmap_update_bits(regmap, ctrl_addr,
+		PM8058_REGULATOR_ENABLE_MASK | PM8058_REGULATOR_PULL_DOWN_MASK,
+		PM8058_REGULATOR_DISABLE | PM8058_REGULATOR_PULL_DOWN_EN);
+}
+
+static int pm8058_pwrkey_shutdown(struct pmic8xxx_pwrkey *pwrkey, bool reset)
+{
+	int error;
+	struct regmap *regmap = pwrkey->regmap;
+	u8 mask, val;
+
+	/* When shutting down, enable active pulldowns on important rails. */
+	if (!reset) {
+		/* Disable SMPS's 0,1,3 locally and set pulldown enable bits. */
+		pm8058_disable_smps_locally_set_pull_down(regmap,
+			PM8058_S0_CTRL, PM8058_S0_TEST2,
+			REG_PM8058_VREG_EN_MSM, BIT(7));
+		pm8058_disable_smps_locally_set_pull_down(regmap,
+			PM8058_S1_CTRL, PM8058_S1_TEST2,
+			REG_PM8058_VREG_EN_MSM, BIT(6));
+		pm8058_disable_smps_locally_set_pull_down(regmap,
+			PM8058_S3_CTRL, PM8058_S3_TEST2,
+			REG_PM8058_VREG_EN_GRP_5_4, BIT(7) | BIT(4));
+		/* Disable LDO 21 locally and set pulldown enable bit. */
+		pm8058_disable_ldo_locally_set_pull_down(regmap,
+			PM8058_L21_CTRL, REG_PM8058_VREG_EN_GRP_5_4,
+			BIT(1));
+	}
+
+	/*
+	 * Fix-up: Set regulator LDO22 to 1.225 V in high power mode. Leave its
+	 * pull-down state intact. This ensures a safe shutdown.
+	 */
+	error = regmap_update_bits(regmap, PM8058_L22_CTRL, 0xbf, 0x93);
+	if (error)
+		return error;
+
+	/* Enable SMPL if resetting is desired */
+	mask = SLEEP_CTRL_SMPL_EN_RESET;
+	val = 0;
+	if (reset)
+		val = mask;
+	return regmap_update_bits(regmap, PM8058_SLEEP_CTRL, mask, val);
+}
+
+static int pm8921_pwrkey_shutdown(struct pmic8xxx_pwrkey *pwrkey, bool reset)
+{
+	struct regmap *regmap = pwrkey->regmap;
+	u8 mask = SLEEP_CTRL_SMPL_EN_RESET;
+	u8 val = 0;
+
+	/* Enable SMPL if resetting is desired */
+	if (reset)
+		val = mask;
+	return regmap_update_bits(regmap, PM8921_SLEEP_CTRL, mask, val);
+}
+
 static int pmic8xxx_pwrkey_probe(struct platform_device *pdev)
 {
 	struct input_dev *pwr;
@@ -109,6 +370,8 @@ static int pmic8xxx_pwrkey_probe(struct platform_device *pdev)
 	if (!pwrkey)
 		return -ENOMEM;
 
+	pwrkey->shutdown_fn = of_device_get_match_data(&pdev->dev);
+	pwrkey->regmap = regmap;
 	pwrkey->key_press_irq = key_press_irq;
 
 	pwr = devm_input_allocate_device(&pdev->dev);
@@ -182,8 +445,8 @@ static int pmic8xxx_pwrkey_remove(struct platform_device *pdev)
 }
 
 static const struct of_device_id pm8xxx_pwr_key_id_table[] = {
-	{ .compatible = "qcom,pm8058-pwrkey" },
-	{ .compatible = "qcom,pm8921-pwrkey" },
+	{ .compatible = "qcom,pm8058-pwrkey", .data = &pm8058_pwrkey_shutdown },
+	{ .compatible = "qcom,pm8921-pwrkey", .data = &pm8921_pwrkey_shutdown },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, pm8xxx_pwr_key_id_table);
@@ -191,6 +454,7 @@ MODULE_DEVICE_TABLE(of, pm8xxx_pwr_key_id_table);
 static struct platform_driver pmic8xxx_pwrkey_driver = {
 	.probe		= pmic8xxx_pwrkey_probe,
 	.remove		= pmic8xxx_pwrkey_remove,
+	.shutdown	= pmic8xxx_pwrkey_shutdown,
 	.driver		= {
 		.name	= "pm8xxx-pwrkey",
 		.pm	= &pm8xxx_pwr_key_pm_ops,
-- 
cgit v1.2.3


From aeda5003d0b987085acef6ad4844f8e34851bb10 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Thu, 16 Jul 2015 11:54:14 -0700
Subject: Input: matrix_keypad - change name of wakeup property to
 "wakeup-source"
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Wakeup property of device is not Linux-specific, it describes intended
system behavior regardless of the OS being used. Therefore let's drop
"linux," prefix, and, while at it, use the same name as I2C bus does:
"wakeup-source".

We keep parsing old name to keep compatibility with old DTSes.

Cc: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 Documentation/devicetree/bindings/input/gpio-matrix-keypad.txt | 2 +-
 drivers/input/keyboard/matrix_keypad.c                         | 6 ++++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/gpio-matrix-keypad.txt b/Documentation/devicetree/bindings/input/gpio-matrix-keypad.txt
index ead641c65e0a..4d86059c370c 100644
--- a/Documentation/devicetree/bindings/input/gpio-matrix-keypad.txt
+++ b/Documentation/devicetree/bindings/input/gpio-matrix-keypad.txt
@@ -19,7 +19,7 @@ Required Properties:
 
 Optional Properties:
 - linux,no-autorepeat:	do no enable autorepeat feature.
-- linux,wakeup:		use any event on keypad as wakeup event.
+- wakeup-source:	use any event on keypad as wakeup event.
 - debounce-delay-ms:	debounce interval in milliseconds
 - col-scan-delay-us:	delay, measured in microseconds, that is needed
 			before we can scan keypad after activating column gpio
diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c
index b370a59cb759..7f12b6579f82 100644
--- a/drivers/input/keyboard/matrix_keypad.c
+++ b/drivers/input/keyboard/matrix_keypad.c
@@ -425,8 +425,10 @@ matrix_keypad_parse_dt(struct device *dev)
 
 	if (of_get_property(np, "linux,no-autorepeat", NULL))
 		pdata->no_autorepeat = true;
-	if (of_get_property(np, "linux,wakeup", NULL))
-		pdata->wakeup = true;
+
+	pdata->wakeup = of_property_read_bool(np, "wakeup-source") ||
+			of_property_read_bool(np, "linux,wakeup"); /* legacy */
+
 	if (of_get_property(np, "gpio-activelow", NULL))
 		pdata->active_low = true;
 
-- 
cgit v1.2.3


From abf77a32288d4379dfede0b50be6a04be3cd1431 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Thu, 16 Jul 2015 12:03:39 -0700
Subject: Input: ads7846 - change name of wakeup property to "wakeup-source"

Wakeup property of device is not Linux-specific, it describes intended
system behavior regardless of the OS being used. Therefore let's drop
"linux," prefix, and, while at it, use the same name as I2C bus does:
"wakeup-source".

We keep parsing old name to keep compatibility with old DTSes.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 Documentation/devicetree/bindings/input/ads7846.txt | 2 +-
 drivers/input/touchscreen/ads7846.c                 | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/ads7846.txt b/Documentation/devicetree/bindings/input/ads7846.txt
index 5f7619c22743..df8b1279491d 100644
--- a/Documentation/devicetree/bindings/input/ads7846.txt
+++ b/Documentation/devicetree/bindings/input/ads7846.txt
@@ -64,7 +64,7 @@ Optional properties:
 					pendown-gpio (u32).
 	pendown-gpio			GPIO handle describing the pin the !PENIRQ
 					line is connected to.
-	linux,wakeup			use any event on touchscreen as wakeup event.
+	wakeup-source			use any event on touchscreen as wakeup event.
 
 
 Example for a TSC2046 chip connected to an McSPI controller of an OMAP SoC::
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index e4eb8a6c658f..0f5f968592bd 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -1234,7 +1234,8 @@ static const struct ads7846_platform_data *ads7846_probe_dt(struct device *dev)
 	of_property_read_u32(node, "ti,pendown-gpio-debounce",
 			     &pdata->gpio_pendown_debounce);
 
-	pdata->wakeup = of_property_read_bool(node, "linux,wakeup");
+	pdata->wakeup = of_property_read_bool(node, "wakeup-source") ||
+			of_property_read_bool(node, "linux,wakeup");
 
 	pdata->gpio_pendown = of_get_named_gpio(dev->of_node, "pendown-gpio", 0);
 
-- 
cgit v1.2.3


From 274696521254855ba03f2d4f4575ae048a409256 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Thu, 16 Jul 2015 12:15:24 -0700
Subject: Input: pmic8xxx-keypad - change name of wakeup property

Wakeup property of device is not Linux-specific, it describes intended
system behavior regardless of the OS being used. Therefore let's drop
"linux," prefix, and, while at it, use the same name as I2C bus does:
"wakeup-source".

We keep parsing old name to keep compatibility with old DTSes.

Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt |  2 +-
 drivers/input/keyboard/pmic8xxx-keypad.c                       | 10 ++++++----
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt b/Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt
index 7d8cb92831d7..ee6215681182 100644
--- a/Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt
+++ b/Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt
@@ -33,7 +33,7 @@ PROPERTIES
 	Value type: <bool>
 	Definition: don't enable autorepeat feature.
 
-- linux,keypad-wakeup:
+- wakeup-source:
 	Usage: optional
 	Value type: <bool>
 	Definition: use any event on keypad as wakeup event.
diff --git a/drivers/input/keyboard/pmic8xxx-keypad.c b/drivers/input/keyboard/pmic8xxx-keypad.c
index 32580afecc26..5c68e3f096bc 100644
--- a/drivers/input/keyboard/pmic8xxx-keypad.c
+++ b/drivers/input/keyboard/pmic8xxx-keypad.c
@@ -507,6 +507,7 @@ static void pmic8xxx_kp_close(struct input_dev *dev)
  */
 static int pmic8xxx_kp_probe(struct platform_device *pdev)
 {
+	struct device_node *np = pdev->dev.of_node;
 	unsigned int rows, cols;
 	bool repeat;
 	bool wakeup;
@@ -524,10 +525,11 @@ static int pmic8xxx_kp_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	repeat = !of_property_read_bool(pdev->dev.of_node,
-					"linux,input-no-autorepeat");
-	wakeup = of_property_read_bool(pdev->dev.of_node,
-					"linux,keypad-wakeup");
+	repeat = !of_property_read_bool(np, "linux,input-no-autorepeat");
+
+	wakeup = of_property_read_bool(np, "wakeup-source") ||
+		 /* legacy name */
+		 of_property_read_bool(np, "linux,keypad-wakeup");
 
 	kp = devm_kzalloc(&pdev->dev, sizeof(*kp), GFP_KERNEL);
 	if (!kp)
-- 
cgit v1.2.3


From 99b4ffbd84ea4191e0b8d1709230656a1c33b848 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Thu, 16 Jul 2015 12:10:05 -0700
Subject: Input: gpio_keys[_polled] - change name of wakeup property

Wakeup property of device is not Linux-specific, it describes intended
system behavior regardless of the OS being used. Therefore let's drop
"linux," prefix, and, while at it, use the same name as I2C bus does:
"wakeup-source".

We keep parsing old name to keep compatibility with old DTSes.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 Documentation/devicetree/bindings/input/gpio-keys-polled.txt | 2 +-
 Documentation/devicetree/bindings/input/gpio-keys.txt        | 2 +-
 drivers/input/keyboard/gpio_keys.c                           | 4 +++-
 drivers/input/keyboard/gpio_keys_polled.c                    | 5 ++++-
 4 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/gpio-keys-polled.txt b/Documentation/devicetree/bindings/input/gpio-keys-polled.txt
index 313abefa37cc..5b91f5a3bd5c 100644
--- a/Documentation/devicetree/bindings/input/gpio-keys-polled.txt
+++ b/Documentation/devicetree/bindings/input/gpio-keys-polled.txt
@@ -20,7 +20,7 @@ Optional subnode-properties:
 	  If not specified defaults to <1> == EV_KEY.
 	- debounce-interval: Debouncing interval time in milliseconds.
 	  If not specified defaults to 5.
-	- gpio-key,wakeup: Boolean, button can wake-up the system.
+	- wakeup-source: Boolean, button can wake-up the system.
 
 Example nodes:
 
diff --git a/Documentation/devicetree/bindings/input/gpio-keys.txt b/Documentation/devicetree/bindings/input/gpio-keys.txt
index 44b705767aca..072bf7573c37 100644
--- a/Documentation/devicetree/bindings/input/gpio-keys.txt
+++ b/Documentation/devicetree/bindings/input/gpio-keys.txt
@@ -23,7 +23,7 @@ Optional subnode-properties:
 	  If not specified defaults to <1> == EV_KEY.
 	- debounce-interval: Debouncing interval time in milliseconds.
 	  If not specified defaults to 5.
-	- gpio-key,wakeup: Boolean, button can wake-up the system.
+	- wakeup-source: Boolean, button can wake-up the system.
 	- linux,can-disable: Boolean, indicates that button is connected
 	  to dedicated (not shared) interrupt which can be disabled to
 	  suppress events from the button.
diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index ddf4045de084..1df4507c4c0b 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -655,7 +655,9 @@ gpio_keys_get_devtree_pdata(struct device *dev)
 		if (of_property_read_u32(pp, "linux,input-type", &button->type))
 			button->type = EV_KEY;
 
-		button->wakeup = !!of_get_property(pp, "gpio-key,wakeup", NULL);
+		button->wakeup = of_property_read_bool(pp, "wakeup-source") ||
+				 /* legacy name */
+				 of_property_read_bool(pp, "gpio-key,wakeup");
 
 		button->can_disable = !!of_get_property(pp, "linux,can-disable", NULL);
 
diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c
index 097d7216d98e..5a0c99950659 100644
--- a/drivers/input/keyboard/gpio_keys_polled.c
+++ b/drivers/input/keyboard/gpio_keys_polled.c
@@ -152,7 +152,10 @@ static struct gpio_keys_platform_data *gpio_keys_polled_get_devtree_pdata(struct
 					     &button->type))
 			button->type = EV_KEY;
 
-		button->wakeup = fwnode_property_present(child, "gpio-key,wakeup");
+		button->wakeup =
+			fwnode_property_read_bool(child, "wakeup-source") ||
+			/* legacy name */
+			fwnode_property_read_bool(child, "gpio-key,wakeup");
 
 		if (fwnode_property_read_u32(child, "debounce-interval",
 					     &button->debounce_interval))
-- 
cgit v1.2.3


From 43b7be3b8c0457c35a124d8538372f82f355bd29 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Fri, 17 Jul 2015 17:04:10 -0700
Subject: Input: samsung-keypad - change name of wakeup property

Wakeup property of device is not Linux-specific, it describes intended
system behavior regardless of the OS being used. Therefore let's drop
"linux," prefix, and, while at it, use the same name as I2C bus does:
"wakeup-source".

We keep parsing old name to keep compatibility with old DTSes.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 Documentation/devicetree/bindings/input/samsung-keypad.txt | 4 +++-
 drivers/input/keyboard/samsung-keypad.c                    | 6 ++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/samsung-keypad.txt b/Documentation/devicetree/bindings/input/samsung-keypad.txt
index 942d071baaa5..863e77f619dc 100644
--- a/Documentation/devicetree/bindings/input/samsung-keypad.txt
+++ b/Documentation/devicetree/bindings/input/samsung-keypad.txt
@@ -36,9 +36,11 @@ Required Board Specific Properties:
 - pinctrl-0: Should specify pin control groups used for this controller.
 - pinctrl-names: Should contain only one value - "default".
 
+Optional Properties:
+- wakeup-source: use any event on keypad as wakeup event.
+
 Optional Properties specific to linux:
 - linux,keypad-no-autorepeat: do no enable autorepeat feature.
-- linux,keypad-wakeup: use any event on keypad as wakeup event.
 
 
 Example:
diff --git a/drivers/input/keyboard/samsung-keypad.c b/drivers/input/keyboard/samsung-keypad.c
index 43e48dac7687..4e319eb9e19d 100644
--- a/drivers/input/keyboard/samsung-keypad.c
+++ b/drivers/input/keyboard/samsung-keypad.c
@@ -299,8 +299,10 @@ samsung_keypad_parse_dt(struct device *dev)
 	if (of_get_property(np, "linux,input-no-autorepeat", NULL))
 		pdata->no_autorepeat = true;
 
-	if (of_get_property(np, "linux,input-wakeup", NULL))
-		pdata->wakeup = true;
+	pdata->wakeup = of_property_read_bool(np, "wakeup-source") ||
+			/* legacy name */
+			of_property_read_bool(np, "linux,input-wakeup");
+
 
 	return pdata;
 }
-- 
cgit v1.2.3


From e571c73ee4836640d3019ac68b008f3662087e80 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Fri, 17 Jul 2015 17:08:02 -0700
Subject: Input: tc3589x-keypad - change name of wakeup property

Wakeup property of device is not Linux-specific, it describes intended
system behavior regardless of the OS being used. Therefore let's drop
"linux," prefix, and, while at it, use the same name as I2C bus does:
"wakeup-source".

We keep parsing old name to keep compatibility with old DTSes.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 Documentation/devicetree/bindings/mfd/tc3589x.txt | 4 ++--
 drivers/input/keyboard/tc3589x-keypad.c           | 5 ++++-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/mfd/tc3589x.txt b/Documentation/devicetree/bindings/mfd/tc3589x.txt
index 6fcedba46ae9..37bf7f1aa70a 100644
--- a/Documentation/devicetree/bindings/mfd/tc3589x.txt
+++ b/Documentation/devicetree/bindings/mfd/tc3589x.txt
@@ -55,7 +55,7 @@ Optional nodes:
  - linux,keymap: the definition can be found in
    bindings/input/matrix-keymap.txt
  - linux,no-autorepeat: do no enable autorepeat feature.
- - linux,wakeup: use any event on keypad as wakeup event.
+ - wakeup-source: use any event on keypad as wakeup event.
 
 Example:
 
@@ -84,7 +84,6 @@ tc35893@44 {
 		keypad,num-columns = <8>;
 		keypad,num-rows = <8>;
 		linux,no-autorepeat;
-		linux,wakeup;
 		linux,keymap = <0x0301006b
 				0x04010066
 				0x06040072
@@ -103,5 +102,6 @@ tc35893@44 {
 				0x01030039
 				0x07060069
 				0x050500d9>;
+		wakeup-source;
 	};
 };
diff --git a/drivers/input/keyboard/tc3589x-keypad.c b/drivers/input/keyboard/tc3589x-keypad.c
index 31c606a4dd31..565805e1ff94 100644
--- a/drivers/input/keyboard/tc3589x-keypad.c
+++ b/drivers/input/keyboard/tc3589x-keypad.c
@@ -352,7 +352,10 @@ tc3589x_keypad_of_probe(struct device *dev)
 	}
 
 	plat->no_autorepeat = of_property_read_bool(np, "linux,no-autorepeat");
-	plat->enable_wakeup = of_property_read_bool(np, "linux,wakeup");
+
+	plat->enable_wakeup = of_property_read_bool(np, "wakeup-source") ||
+			      /* legacy name */
+			      of_property_read_bool(np, "linux,wakeup");
 
 	/* The custom delay format is ms/16 */
 	of_property_read_u32(np, "debounce-delay-ms", &debounce_ms);
-- 
cgit v1.2.3


From be972177797636a4c8958ff0a8feb314309850c3 Mon Sep 17 00:00:00 2001
From: Himangi Saraogi <himangi774@gmail.com>
Date: Sun, 25 May 2014 22:33:13 -0700
Subject: Input: tc3589x-keypad - switch to using managed resources

Let's switch the driver to use managed resources, this will simplify
error handling and driver unbinding logic.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/keyboard/tc3589x-keypad.c | 58 ++++++++++++---------------------
 1 file changed, 20 insertions(+), 38 deletions(-)

diff --git a/drivers/input/keyboard/tc3589x-keypad.c b/drivers/input/keyboard/tc3589x-keypad.c
index 565805e1ff94..e92dfd8889c2 100644
--- a/drivers/input/keyboard/tc3589x-keypad.c
+++ b/drivers/input/keyboard/tc3589x-keypad.c
@@ -17,6 +17,7 @@
 #include <linux/i2c.h>
 #include <linux/slab.h>
 #include <linux/mfd/tc3589x.h>
+#include <linux/device.h>
 
 /* Maximum supported keypad matrix row/columns size */
 #define TC3589x_MAX_KPROW               8
@@ -389,12 +390,15 @@ static int tc3589x_keypad_probe(struct platform_device *pdev)
 	if (irq < 0)
 		return irq;
 
-	keypad = kzalloc(sizeof(struct tc_keypad), GFP_KERNEL);
-	input = input_allocate_device();
-	if (!keypad || !input) {
-		dev_err(&pdev->dev, "failed to allocate keypad memory\n");
-		error = -ENOMEM;
-		goto err_free_mem;
+	keypad = devm_kzalloc(&pdev->dev, sizeof(struct tc_keypad),
+			      GFP_KERNEL);
+	if (!keypad)
+		return -ENOMEM;
+
+	input = devm_input_allocate_device(&pdev->dev);
+	if (!input) {
+		dev_err(&pdev->dev, "failed to allocate input device\n");
+		return -ENOMEM;
 	}
 
 	keypad->board = plat;
@@ -413,7 +417,7 @@ static int tc3589x_keypad_probe(struct platform_device *pdev)
 					   NULL, input);
 	if (error) {
 		dev_err(&pdev->dev, "Failed to build keymap\n");
-		goto err_free_mem;
+		return error;
 	}
 
 	keypad->keymap = input->keycode;
@@ -424,20 +428,23 @@ static int tc3589x_keypad_probe(struct platform_device *pdev)
 
 	input_set_drvdata(input, keypad);
 
-	error = request_threaded_irq(irq, NULL, tc3589x_keypad_irq,
-				     plat->irqtype | IRQF_ONESHOT,
-				     "tc3589x-keypad", keypad);
-	if (error < 0) {
+	tc3589x_keypad_disable(keypad);
+
+	error = devm_request_threaded_irq(&pdev->dev, irq,
+					  NULL, tc3589x_keypad_irq,
+					  plat->irqtype | IRQF_ONESHOT,
+					  "tc3589x-keypad", keypad);
+	if (error) {
 		dev_err(&pdev->dev,
 				"Could not allocate irq %d,error %d\n",
 				irq, error);
-		goto err_free_mem;
+		return error;
 	}
 
 	error = input_register_device(input);
 	if (error) {
 		dev_err(&pdev->dev, "Could not register input device\n");
-		goto err_free_irq;
+		return error;
 	}
 
 	/* let platform decide if keypad is a wakeup source or not */
@@ -446,30 +453,6 @@ static int tc3589x_keypad_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, keypad);
 
-	return 0;
-
-err_free_irq:
-	free_irq(irq, keypad);
-err_free_mem:
-	input_free_device(input);
-	kfree(keypad);
-	return error;
-}
-
-static int tc3589x_keypad_remove(struct platform_device *pdev)
-{
-	struct tc_keypad *keypad = platform_get_drvdata(pdev);
-	int irq = platform_get_irq(pdev, 0);
-
-	if (!keypad->keypad_stopped)
-		tc3589x_keypad_disable(keypad);
-
-	free_irq(irq, keypad);
-
-	input_unregister_device(keypad->input);
-
-	kfree(keypad);
-
 	return 0;
 }
 
@@ -521,7 +504,6 @@ static struct platform_driver tc3589x_keypad_driver = {
 		.pm	= &tc3589x_keypad_dev_pm_ops,
 	},
 	.probe	= tc3589x_keypad_probe,
-	.remove	= tc3589x_keypad_remove,
 };
 module_platform_driver(tc3589x_keypad_driver);
 
-- 
cgit v1.2.3


From 94897619bf24aca6b37cfa847399a56cf40eab66 Mon Sep 17 00:00:00 2001
From: Dudley Du <dudl@cypress.com>
Date: Mon, 20 Jul 2015 16:49:06 -0700
Subject: Input: cyapa - rename 'gen5' to 'pip' for chared code

Change 'gen5' to 'pip' for all macros, variables and functions that are
shared between gen5 and gen6 modules to make naming more clear and
readable.

Also fix a few spelling errors.

Signed-off-by: Dudley Du <dudl@cypress.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/mouse/cyapa.c      |   34 +-
 drivers/input/mouse/cyapa.h      |  136 ++++-
 drivers/input/mouse/cyapa_gen3.c |    4 +-
 drivers/input/mouse/cyapa_gen5.c | 1103 ++++++++++++++++++--------------------
 4 files changed, 673 insertions(+), 604 deletions(-)

diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c
index dfbfd494bb1f..4c4429598adb 100644
--- a/drivers/input/mouse/cyapa.c
+++ b/drivers/input/mouse/cyapa.c
@@ -6,7 +6,7 @@
  *   Daniel Kurtz <djkurtz@chromium.org>
  *   Benson Leung <bleung@chromium.org>
  *
- * Copyright (C) 2011-2014 Cypress Semiconductor, Inc.
+ * Copyright (C) 2011-2015 Cypress Semiconductor, Inc.
  * Copyright (C) 2011-2012 Google, Inc.
  *
  * This file is subject to the terms and conditions of the GNU General Public
@@ -39,11 +39,27 @@ const char product_id[] = "CYTRA";
 
 static int cyapa_reinitialize(struct cyapa *cyapa);
 
-static inline bool cyapa_is_bootloader_mode(struct cyapa *cyapa)
+bool cyapa_is_pip_bl_mode(struct cyapa *cyapa)
 {
 	if (cyapa->gen == CYAPA_GEN5 && cyapa->state == CYAPA_STATE_GEN5_BL)
 		return true;
 
+	return false;
+}
+
+bool cyapa_is_pip_app_mode(struct cyapa *cyapa)
+{
+	if (cyapa->gen == CYAPA_GEN5 && cyapa->state == CYAPA_STATE_GEN5_APP)
+		return true;
+
+	return false;
+}
+
+static bool cyapa_is_bootloader_mode(struct cyapa *cyapa)
+{
+	if (cyapa_is_pip_bl_mode(cyapa))
+		return true;
+
 	if (cyapa->gen == CYAPA_GEN3 &&
 		cyapa->state >= CYAPA_STATE_BL_BUSY &&
 		cyapa->state <= CYAPA_STATE_BL_ACTIVE)
@@ -54,7 +70,7 @@ static inline bool cyapa_is_bootloader_mode(struct cyapa *cyapa)
 
 static inline bool cyapa_is_operational_mode(struct cyapa *cyapa)
 {
-	if (cyapa->gen == CYAPA_GEN5 && cyapa->state == CYAPA_STATE_GEN5_APP)
+	if (cyapa_is_pip_app_mode(cyapa))
 		return true;
 
 	if (cyapa->gen == CYAPA_GEN3 && cyapa->state == CYAPA_STATE_OP)
@@ -306,7 +322,7 @@ static int cyapa_check_is_operational(struct cyapa *cyapa)
 
 /*
  * Returns 0 on device detected, negative errno on no device detected.
- * And when the device is detected and opertaional, it will be reset to
+ * And when the device is detected and operational, it will be reset to
  * full power active mode automatically.
  */
 static int cyapa_detect(struct cyapa *cyapa)
@@ -629,15 +645,15 @@ static irqreturn_t cyapa_irq(int irq, void *dev_id)
 	if (device_may_wakeup(dev))
 		pm_wakeup_event(dev, 0);
 
-	/* Interrupt event maybe cuased by host command to trackpad device. */
+	/* Interrupt event can be caused by host command to trackpad device. */
 	if (cyapa->ops->irq_cmd_handler(cyapa)) {
 		/*
 		 * Interrupt event maybe from trackpad device input reporting.
 		 */
 		if (!cyapa->input) {
 			/*
-			 * Still in probling or in firware image
-			 * udpating or reading.
+			 * Still in probing or in firmware image
+			 * updating or reading.
 			 */
 			cyapa->ops->sort_empty_output_data(cyapa,
 					NULL, NULL, NULL);
@@ -1051,12 +1067,12 @@ static ssize_t cyapa_update_fw_store(struct device *dev,
 		dev_dbg(dev, "firmware update successfully done.\n");
 
 	/*
-	 * Redetect trackpad device states because firmware update process
+	 * Re-detect trackpad device states because firmware update process
 	 * will reset trackpad device into bootloader mode.
 	 */
 	ret = cyapa_reinitialize(cyapa);
 	if (ret) {
-		dev_err(dev, "failed to redetect after updated: %d\n", ret);
+		dev_err(dev, "failed to re-detect after updated: %d\n", ret);
 		error = error ? error : ret;
 	}
 
diff --git a/drivers/input/mouse/cyapa.h b/drivers/input/mouse/cyapa.h
index adc9ed5dcb0e..d019d1d2d1e4 100644
--- a/drivers/input/mouse/cyapa.h
+++ b/drivers/input/mouse/cyapa.h
@@ -3,7 +3,7 @@
  *
  * Author: Dudley Du <dudl@cypress.com>
  *
- * Copyright (C) 2014 Cypress Semiconductor, Inc.
+ * Copyright (C) 2014-2015 Cypress Semiconductor, Inc.
  *
  * 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 archive for
@@ -25,7 +25,7 @@
 /*
  * Macros for SMBus communication
  */
-#define SMBUS_READ   0x01
+#define SMBUS_READ  0x01
 #define SMBUS_WRITE 0x00
 #define SMBUS_ENCODE_IDX(cmd, idx) ((cmd) | (((idx) & 0x03) << 1))
 #define SMBUS_ENCODE_RW(cmd, rw) ((cmd) | ((rw) & 0x01))
@@ -159,12 +159,86 @@
 
 #define AUTOSUSPEND_DELAY   2000 /* unit : ms */
 
-#define UNINIT_SLEEP_TIME 0xFFFF
-#define UNINIT_PWR_MODE   0xFF
-
 #define BTN_ONLY_MODE_NAME   "buttononly"
 #define OFF_MODE_NAME        "off"
 
+/* Common macros for PIP interface. */
+#define PIP_HID_DESCRIPTOR_ADDR		0x0001
+#define PIP_REPORT_DESCRIPTOR_ADDR	0x0002
+#define PIP_INPUT_REPORT_ADDR		0x0003
+#define PIP_OUTPUT_REPORT_ADDR		0x0004
+#define PIP_CMD_DATA_ADDR		0x0006
+
+#define PIP_RETRIEVE_DATA_STRUCTURE	0x24
+#define PIP_CMD_CALIBRATE		0x28
+#define PIP_BL_CMD_VERIFY_APP_INTEGRITY	0x31
+#define PIP_BL_CMD_GET_BL_INFO		0x38
+#define PIP_BL_CMD_PROGRAM_VERIFY_ROW	0x39
+#define PIP_BL_CMD_LAUNCH_APP		0x3b
+#define PIP_BL_CMD_INITIATE_BL		0x48
+#define PIP_INVALID_CMD			0xff
+
+#define PIP_HID_DESCRIPTOR_SIZE		32
+#define PIP_HID_APP_REPORT_ID		0xf7
+#define PIP_HID_BL_REPORT_ID		0xff
+
+#define PIP_BL_CMD_REPORT_ID		0x40
+#define PIP_BL_RESP_REPORT_ID		0x30
+#define PIP_APP_CMD_REPORT_ID		0x2f
+#define PIP_APP_RESP_REPORT_ID		0x1f
+
+#define PIP_READ_SYS_INFO_CMD_LENGTH	7
+#define PIP_BL_READ_APP_INFO_CMD_LENGTH	13
+#define PIP_MIN_BL_CMD_LENGTH		13
+#define PIP_MIN_BL_RESP_LENGTH		11
+#define PIP_MIN_APP_CMD_LENGTH		7
+#define PIP_MIN_APP_RESP_LENGTH		5
+#define PIP_UNSUPPORTED_CMD_RESP_LENGTH	6
+#define PIP_READ_SYS_INFO_RESP_LENGTH	71
+#define PIP_BL_APP_INFO_RESP_LENGTH	30
+#define PIP_BL_GET_INFO_RESP_LENGTH	19
+
+#define PIP_PRODUCT_FAMILY_MASK		0xf000
+#define PIP_PRODUCT_FAMILY_TRACKPAD	0x1000
+
+#define PIP_DEEP_SLEEP_STATE_ON		0x00
+#define PIP_DEEP_SLEEP_STATE_OFF	0x01
+#define PIP_DEEP_SLEEP_STATE_MASK	0x03
+#define PIP_APP_DEEP_SLEEP_REPORT_ID	0xf0
+#define PIP_DEEP_SLEEP_RESP_LENGTH	5
+#define PIP_DEEP_SLEEP_OPCODE		0x08
+#define PIP_DEEP_SLEEP_OPCODE_MASK	0x0f
+
+#define PIP_RESP_LENGTH_OFFSET		0
+#define	    PIP_RESP_LENGTH_SIZE	2
+#define PIP_RESP_REPORT_ID_OFFSET	2
+#define PIP_RESP_RSVD_OFFSET		3
+#define     PIP_RESP_RSVD_KEY		0x00
+#define PIP_RESP_BL_SOP_OFFSET		4
+#define     PIP_SOP_KEY			0x01  /* Start of Packet */
+#define     PIP_EOP_KEY			0x17  /* End of Packet */
+#define PIP_RESP_APP_CMD_OFFSET		4
+#define     GET_PIP_CMD_CODE(reg)	((reg) & 0x7f)
+#define PIP_RESP_STATUS_OFFSET		5
+
+#define VALID_CMD_RESP_HEADER(resp, cmd)				  \
+	(((resp)[PIP_RESP_REPORT_ID_OFFSET] == PIP_APP_RESP_REPORT_ID) && \
+	((resp)[PIP_RESP_RSVD_OFFSET] == PIP_RESP_RSVD_KEY) &&		  \
+	(GET_PIP_CMD_CODE((resp)[PIP_RESP_APP_CMD_OFFSET]) == (cmd)))
+
+#define PIP_CMD_COMPLETE_SUCCESS(resp_data) \
+	((resp_data)[PIP_RESP_STATUS_OFFSET] == 0x00)
+
+/* Variables to record latest gen5 trackpad power states. */
+#define UNINIT_SLEEP_TIME	0xffff
+#define UNINIT_PWR_MODE		0xff
+#define PIP_DEV_SET_PWR_STATE(cyapa, s)		((cyapa)->dev_pwr_mode = (s))
+#define PIP_DEV_GET_PWR_STATE(cyapa)		((cyapa)->dev_pwr_mode)
+#define PIP_DEV_SET_SLEEP_TIME(cyapa, t)	((cyapa)->dev_sleep_time = (t))
+#define PIP_DEV_GET_SLEEP_TIME(cyapa)		((cyapa)->dev_sleep_time)
+#define PIP_DEV_UNINIT_SLEEP_TIME(cyapa)	\
+		(((cyapa)->dev_sleep_time) == UNINIT_SLEEP_TIME)
+
 /* The touch.id is used as the MT slot id, thus max MT slot is 15 */
 #define CYAPA_MAX_MT_SLOTS  15
 
@@ -198,7 +272,7 @@ struct cyapa_dev_ops {
 	int (*set_power_mode)(struct cyapa *, u8, u16);
 };
 
-struct cyapa_gen5_cmd_states {
+struct cyapa_pip_cmd_states {
 	struct mutex cmd_lock;
 	struct completion cmd_ready;
 	atomic_t cmd_issued;
@@ -214,7 +288,7 @@ struct cyapa_gen5_cmd_states {
 };
 
 union cyapa_cmd_states {
-	struct cyapa_gen5_cmd_states gen5;
+	struct cyapa_pip_cmd_states pip;
 };
 
 enum cyapa_state {
@@ -259,7 +333,7 @@ struct cyapa {
 	int physical_size_y;
 
 	/* Used in ttsp and truetouch based trackpad devices. */
-	u8 x_origin;  /* X Axis Origin: 0 = left side; 1 = rigth side. */
+	u8 x_origin;  /* X Axis Origin: 0 = left side; 1 = right side. */
 	u8 y_origin;  /* Y Axis Origin: 0 = top; 1 = bottom. */
 	int electrodes_x;  /* Number of electrodes on the X Axis*/
 	int electrodes_y;  /* Number of electrodes on the Y Axis*/
@@ -282,9 +356,9 @@ struct cyapa {
 
 
 ssize_t cyapa_i2c_reg_read_block(struct cyapa *cyapa, u8 reg, size_t len,
-				u8 *values);
+				 u8 *values);
 ssize_t cyapa_smbus_read_block(struct cyapa *cyapa, u8 cmd, size_t len,
-				u8 *values);
+			       u8 *values);
 
 ssize_t cyapa_read_block(struct cyapa *cyapa, u8 cmd_idx, u8 *values);
 
@@ -293,7 +367,47 @@ int cyapa_poll_state(struct cyapa *cyapa, unsigned int timeout);
 u8 cyapa_sleep_time_to_pwr_cmd(u16 sleep_time);
 u16 cyapa_pwr_cmd_to_sleep_time(u8 pwr_mode);
 
-
+ssize_t cyapa_i2c_pip_read(struct cyapa *cyapa, u8 *buf, size_t size);
+ssize_t cyapa_i2c_pip_write(struct cyapa *cyapa, u8 *buf, size_t size);
+int cyapa_empty_pip_output_data(struct cyapa *cyapa,
+				u8 *buf, int *len, cb_sort func);
+int cyapa_i2c_pip_cmd_irq_sync(struct cyapa *cyapa,
+			       u8 *cmd, int cmd_len,
+			       u8 *resp_data, int *resp_len,
+			       unsigned long timeout,
+			       cb_sort func,
+			       bool irq_mode);
+int cyapa_pip_state_parse(struct cyapa *cyapa, u8 *reg_data, int len);
+bool cyapa_pip_sort_system_info_data(struct cyapa *cyapa, u8 *buf, int len);
+bool cyapa_sort_tsg_pip_bl_resp_data(struct cyapa *cyapa, u8 *data, int len);
+int cyapa_pip_deep_sleep(struct cyapa *cyapa, u8 state);
+bool cyapa_sort_tsg_pip_app_resp_data(struct cyapa *cyapa, u8 *data, int len);
+int cyapa_pip_bl_exit(struct cyapa *cyapa);
+int cyapa_pip_bl_enter(struct cyapa *cyapa);
+
+
+bool cyapa_is_pip_bl_mode(struct cyapa *cyapa);
+bool cyapa_is_pip_app_mode(struct cyapa *cyapa);
+int cyapa_pip_cmd_state_initialize(struct cyapa *cyapa);
+
+int cyapa_pip_resume_scanning(struct cyapa *cyapa);
+int cyapa_pip_suspend_scanning(struct cyapa *cyapa);
+
+int cyapa_pip_check_fw(struct cyapa *cyapa, const struct firmware *fw);
+int cyapa_pip_bl_initiate(struct cyapa *cyapa, const struct firmware *fw);
+int cyapa_pip_do_fw_update(struct cyapa *cyapa, const struct firmware *fw);
+int cyapa_pip_bl_activate(struct cyapa *cyapa);
+int cyapa_pip_bl_deactivate(struct cyapa *cyapa);
+ssize_t cyapa_pip_do_calibrate(struct device *dev,
+			       struct device_attribute *attr,
+			       const char *buf, size_t count);
+
+bool cyapa_pip_irq_cmd_handler(struct cyapa *cyapa);
+int cyapa_pip_irq_handler(struct cyapa *cyapa);
+
+
+extern u8 pip_read_sys_info[];
+extern u8 pip_bl_read_app_info[];
 extern const char product_id[];
 extern const struct cyapa_dev_ops cyapa_gen3_ops;
 extern const struct cyapa_dev_ops cyapa_gen5_ops;
diff --git a/drivers/input/mouse/cyapa_gen3.c b/drivers/input/mouse/cyapa_gen3.c
index 3faf01c1b191..3884311410f7 100644
--- a/drivers/input/mouse/cyapa_gen3.c
+++ b/drivers/input/mouse/cyapa_gen3.c
@@ -6,7 +6,7 @@
  *   Daniel Kurtz <djkurtz@chromium.org>
  *   Benson Leung <bleung@chromium.org>
  *
- * Copyright (C) 2011-2014 Cypress Semiconductor, Inc.
+ * Copyright (C) 2011-2015 Cypress Semiconductor, Inc.
  * Copyright (C) 2011-2012 Google, Inc.
  *
  * This file is subject to the terms and conditions of the GNU General Public
@@ -1156,7 +1156,7 @@ static bool cyapa_gen3_irq_cmd_handler(struct cyapa *cyapa)
 	 * so, stop cyapa_gen3_irq_handler to continue process to
 	 * avoid unwanted to error detecting and processing.
 	 *
-	 * And also, avoid the periodicly accerted interrupts to be processed
+	 * And also, avoid the periodically asserted interrupts to be processed
 	 * as touch inputs when gen3 failed to launch into application mode,
 	 * which will cause gen3 stays in bootloader mode.
 	 */
diff --git a/drivers/input/mouse/cyapa_gen5.c b/drivers/input/mouse/cyapa_gen5.c
index afc39e799da2..9d75c6f9f307 100644
--- a/drivers/input/mouse/cyapa_gen5.c
+++ b/drivers/input/mouse/cyapa_gen5.c
@@ -3,7 +3,7 @@
  *
  * Author: Dudley Du <dudl@cypress.com>
  *
- * Copyright (C) 2014 Cypress Semiconductor, Inc.
+ * Copyright (C) 2014-2015 Cypress Semiconductor, Inc.
  *
  * 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 archive for
@@ -22,12 +22,7 @@
 #include "cyapa.h"
 
 
-/* Macro of Gen5 */
-#define RECORD_EVENT_NONE        0
-#define RECORD_EVENT_TOUCHDOWN	 1
-#define RECORD_EVENT_DISPLACE    2
-#define RECORD_EVENT_LIFTOFF     3
-
+/* Macro of TSG firmware image */
 #define CYAPA_TSG_FLASH_MAP_BLOCK_SIZE      0x80
 #define CYAPA_TSG_IMG_FW_HDR_SIZE           13
 #define CYAPA_TSG_FW_ROW_SIZE               (CYAPA_TSG_FLASH_MAP_BLOCK_SIZE)
@@ -44,43 +39,48 @@
 
 #define CYAPA_TSG_MAX_CMD_SIZE              256
 
-#define GEN5_BL_CMD_VERIFY_APP_INTEGRITY    0x31
-#define GEN5_BL_CMD_GET_BL_INFO		    0x38
-#define GEN5_BL_CMD_PROGRAM_VERIFY_ROW      0x39
-#define GEN5_BL_CMD_LAUNCH_APP		    0x3b
-#define GEN5_BL_CMD_INITIATE_BL		    0x48
-
-#define GEN5_HID_DESCRIPTOR_ADDR	0x0001
-#define GEN5_REPORT_DESCRIPTOR_ADDR	0x0002
-#define GEN5_INPUT_REPORT_ADDR		0x0003
-#define GEN5_OUTPUT_REPORT_ADDR		0x0004
-#define GEN5_CMD_DATA_ADDR		0x0006
-
-#define GEN5_TOUCH_REPORT_HEAD_SIZE     7
-#define GEN5_TOUCH_REPORT_MAX_SIZE      127
-#define GEN5_BTN_REPORT_HEAD_SIZE       6
-#define GEN5_BTN_REPORT_MAX_SIZE        14
-#define GEN5_WAKEUP_EVENT_SIZE          4
-#define GEN5_RAW_DATA_HEAD_SIZE         24
-
-#define GEN5_BL_CMD_REPORT_ID           0x40
-#define GEN5_BL_RESP_REPORT_ID          0x30
-#define GEN5_APP_CMD_REPORT_ID          0x2f
-#define GEN5_APP_RESP_REPORT_ID         0x1f
-
-#define GEN5_APP_DEEP_SLEEP_REPORT_ID   0xf0
-#define GEN5_DEEP_SLEEP_RESP_LENGTH     5
+/* Macro of PIP interface */
+#define PIP_BL_INITIATE_RESP_LEN            11
+#define PIP_BL_FAIL_EXIT_RESP_LEN           11
+#define PIP_BL_FAIL_EXIT_STATUS_CODE        0x0c
+#define PIP_BL_VERIFY_INTEGRITY_RESP_LEN    12
+#define PIP_BL_INTEGRITY_CHEKC_PASS         0x00
+#define PIP_BL_BLOCK_WRITE_RESP_LEN         11
+
+#define PIP_TOUCH_REPORT_ID         0x01
+#define PIP_BTN_REPORT_ID           0x03
+#define PIP_WAKEUP_EVENT_REPORT_ID  0x04
+#define PIP_PUSH_BTN_REPORT_ID      0x06
+#define GEN5_OLD_PUSH_BTN_REPORT_ID 0x05  /* Special for old Gen5 TP. */
+
+#define PIP_TOUCH_REPORT_HEAD_SIZE     7
+#define PIP_TOUCH_REPORT_MAX_SIZE      127
+#define PIP_BTN_REPORT_HEAD_SIZE       6
+#define PIP_BTN_REPORT_MAX_SIZE        14
+#define PIP_WAKEUP_EVENT_SIZE          4
+
+#define PIP_NUMBER_OF_TOUCH_OFFSET  5
+#define PIP_NUMBER_OF_TOUCH_MASK    0x1f
+#define PIP_BUTTONS_OFFSET          5
+#define PIP_BUTTONS_MASK            0x0f
+#define PIP_GET_EVENT_ID(reg)       (((reg) >> 5) & 0x03)
+#define PIP_GET_TOUCH_ID(reg)       ((reg) & 0x1f)
+#define PIP_TOUCH_TYPE_FINGER	    0x00
+#define PIP_TOUCH_TYPE_PROXIMITY    0x01
+#define PIP_TOUCH_TYPE_HOVER	    0x02
+#define PIP_GET_TOUCH_TYPE(reg)     ((reg) & 0x07)
 
-#define GEN5_CMD_GET_PARAMETER		     0x05
-#define GEN5_CMD_SET_PARAMETER		     0x06
-#define GEN5_PARAMETER_ACT_INTERVL_ID        0x4d
-#define GEN5_PARAMETER_ACT_INTERVL_SIZE      1
-#define GEN5_PARAMETER_ACT_LFT_INTERVL_ID    0x4f
-#define GEN5_PARAMETER_ACT_LFT_INTERVL_SIZE  2
-#define GEN5_PARAMETER_LP_INTRVL_ID          0x4c
-#define GEN5_PARAMETER_LP_INTRVL_SIZE        2
+#define RECORD_EVENT_NONE        0
+#define RECORD_EVENT_TOUCHDOWN	 1
+#define RECORD_EVENT_DISPLACE    2
+#define RECORD_EVENT_LIFTOFF     3
 
-#define GEN5_PARAMETER_DISABLE_PIP_REPORT    0x08
+#define PIP_SENSING_MODE_MUTUAL_CAP_FINE   0x00
+#define PIP_SENSING_MODE_SELF_CAP          0x02
+
+/* Macro of Gen5 */
+#define GEN5_BL_MAX_OUTPUT_LENGTH     0x0100
+#define GEN5_APP_MAX_OUTPUT_LENGTH    0x00fe
 
 #define GEN5_POWER_STATE_ACTIVE              0x01
 #define GEN5_POWER_STATE_LOOK_FOR_TOUCH      0x02
@@ -89,46 +89,19 @@
 #define GEN5_POWER_STATE_BTN_ONLY            0x05
 #define GEN5_POWER_STATE_OFF                 0x06
 
-#define GEN5_DEEP_SLEEP_STATE_MASK  0x03
-#define GEN5_DEEP_SLEEP_STATE_ON    0x00
-#define GEN5_DEEP_SLEEP_STATE_OFF   0x01
-
-#define GEN5_DEEP_SLEEP_OPCODE      0x08
-#define GEN5_DEEP_SLEEP_OPCODE_MASK 0x0f
-
 #define GEN5_POWER_READY_MAX_INTRVL_TIME  50   /* Unit: ms */
 #define GEN5_POWER_IDLE_MAX_INTRVL_TIME   250  /* Unit: ms */
 
-#define GEN5_CMD_REPORT_ID_OFFSET       4
-
-#define GEN5_RESP_REPORT_ID_OFFSET      2
-#define GEN5_RESP_RSVD_OFFSET           3
-#define     GEN5_RESP_RSVD_KEY          0x00
-#define GEN5_RESP_BL_SOP_OFFSET         4
-#define     GEN5_SOP_KEY                0x01  /* Start of Packet */
-#define     GEN5_EOP_KEY                0x17  /* End of Packet */
-#define GEN5_RESP_APP_CMD_OFFSET        4
-#define     GET_GEN5_CMD_CODE(reg)      ((reg) & 0x7f)
-
-#define VALID_CMD_RESP_HEADER(resp, cmd)				    \
-	(((resp)[GEN5_RESP_REPORT_ID_OFFSET] == GEN5_APP_RESP_REPORT_ID) && \
-	((resp)[GEN5_RESP_RSVD_OFFSET] == GEN5_RESP_RSVD_KEY) &&	    \
-	(GET_GEN5_CMD_CODE((resp)[GEN5_RESP_APP_CMD_OFFSET]) == (cmd)))
-
-#define GEN5_MIN_BL_CMD_LENGTH           13
-#define GEN5_MIN_BL_RESP_LENGTH          11
-#define GEN5_MIN_APP_CMD_LENGTH          7
-#define GEN5_MIN_APP_RESP_LENGTH         5
-#define GEN5_UNSUPPORTED_CMD_RESP_LENGTH 6
-
-#define GEN5_RESP_LENGTH_OFFSET  0x00
-#define GEN5_RESP_LENGTH_SIZE    2
-
-#define GEN5_HID_DESCRIPTOR_SIZE      32
-#define GEN5_BL_HID_REPORT_ID         0xff
-#define GEN5_APP_HID_REPORT_ID        0xf7
-#define GEN5_BL_MAX_OUTPUT_LENGTH     0x0100
-#define GEN5_APP_MAX_OUTPUT_LENGTH    0x00fe
+#define GEN5_CMD_GET_PARAMETER		     0x05
+#define GEN5_CMD_SET_PARAMETER		     0x06
+#define GEN5_PARAMETER_ACT_INTERVL_ID        0x4d
+#define GEN5_PARAMETER_ACT_INTERVL_SIZE      1
+#define GEN5_PARAMETER_ACT_LFT_INTERVL_ID    0x4f
+#define GEN5_PARAMETER_ACT_LFT_INTERVL_SIZE  2
+#define GEN5_PARAMETER_LP_INTRVL_ID          0x4c
+#define GEN5_PARAMETER_LP_INTRVL_SIZE        2
+
+#define GEN5_PARAMETER_DISABLE_PIP_REPORT    0x08
 
 #define GEN5_BL_REPORT_DESCRIPTOR_SIZE            0x1d
 #define GEN5_BL_REPORT_DESCRIPTOR_ID              0xfe
@@ -136,26 +109,6 @@
 #define GEN5_APP_CONTRACT_REPORT_DESCRIPTOR_SIZE  0xfa
 #define GEN5_APP_REPORT_DESCRIPTOR_ID             0xf6
 
-#define GEN5_TOUCH_REPORT_ID         0x01
-#define GEN5_BTN_REPORT_ID           0x03
-#define GEN5_WAKEUP_EVENT_REPORT_ID  0x04
-#define GEN5_OLD_PUSH_BTN_REPORT_ID  0x05
-#define GEN5_PUSH_BTN_REPORT_ID      0x06
-
-#define GEN5_CMD_COMPLETE_SUCCESS(status) ((status) == 0x00)
-
-#define GEN5_BL_INITIATE_RESP_LEN            11
-#define GEN5_BL_FAIL_EXIT_RESP_LEN           11
-#define GEN5_BL_FAIL_EXIT_STATUS_CODE        0x0c
-#define GEN5_BL_VERIFY_INTEGRITY_RESP_LEN    12
-#define GEN5_BL_INTEGRITY_CHEKC_PASS         0x00
-#define GEN5_BL_BLOCK_WRITE_RESP_LEN         11
-#define GEN5_BL_READ_APP_INFO_RESP_LEN       31
-#define GEN5_CMD_CALIBRATE                   0x28
-#define CYAPA_SENSING_MODE_MUTUAL_CAP_FINE   0x00
-#define CYAPA_SENSING_MODE_SELF_CAP          0x02
-
-#define GEN5_CMD_RETRIEVE_DATA_STRUCTURE     0x24
 #define GEN5_RETRIEVE_MUTUAL_PWC_DATA        0x00
 #define GEN5_RETRIEVE_SELF_CAP_PWC_DATA      0x01
 
@@ -170,23 +123,12 @@
 #define GEN5_PANEL_SCAN_SELF_BASELINE        0x04
 #define GEN5_PANEL_SCAN_SELF_DIFFCOUNT       0x05
 
-/* The offset only valid for reterive PWC and panel scan commands */
+/* The offset only valid for retrieve PWC and panel scan commands */
 #define GEN5_RESP_DATA_STRUCTURE_OFFSET      10
 #define GEN5_PWC_DATA_ELEMENT_SIZE_MASK      0x07
 
-#define	GEN5_NUMBER_OF_TOUCH_OFFSET  5
-#define GEN5_NUMBER_OF_TOUCH_MASK    0x1f
-#define GEN5_BUTTONS_OFFSET          5
-#define GEN5_BUTTONS_MASK            0x0f
-#define GEN5_GET_EVENT_ID(reg)       (((reg) >> 5) & 0x03)
-#define GEN5_GET_TOUCH_ID(reg)       ((reg) & 0x1f)
-
-#define GEN5_PRODUCT_FAMILY_MASK        0xf000
-#define GEN5_PRODUCT_FAMILY_TRACKPAD    0x1000
-
-#define TSG_INVALID_CMD   0xff
 
-struct cyapa_gen5_touch_record {
+struct cyapa_pip_touch_record {
 	/*
 	 * Bit 7 - 3: reserved
 	 * Bit 2 - 0: touch type;
@@ -221,7 +163,11 @@ struct cyapa_gen5_touch_record {
 	/* Bit 15 - 8 of Y-axis coordinate of the touch in pixel. */
 	u8 y_hi;
 
-	/* Touch intensity in counts, pressure value. */
+	/*
+	 * The meaning of this value is different when touch_type is different.
+	 * For standard finger type:
+	 *	Touch intensity in counts, pressure value.
+	 **/
 	u8 z;
 
 	/*
@@ -260,9 +206,9 @@ struct cyapa_gen5_touch_record {
 	u8 orientation;
 } __packed;
 
-struct cyapa_gen5_report_data {
-	u8 report_head[GEN5_TOUCH_REPORT_HEAD_SIZE];
-	struct cyapa_gen5_touch_record touch_records[10];
+struct cyapa_pip_report_data {
+	u8 report_head[PIP_TOUCH_REPORT_HEAD_SIZE];
+	struct cyapa_pip_touch_record touch_records[10];
 } __packed;
 
 struct cyapa_tsg_bin_image_head {
@@ -288,36 +234,36 @@ struct cyapa_tsg_bin_image {
 	struct cyapa_tsg_bin_image_data_record records[0];
 } __packed;
 
-struct gen5_bl_packet_start {
+struct pip_bl_packet_start {
 	u8 sop;  /* Start of packet, must be 01h */
 	u8 cmd_code;
 	__le16 data_length;  /* Size of data parameter start from data[0] */
 } __packed;
 
-struct gen5_bl_packet_end {
+struct pip_bl_packet_end {
 	__le16 crc;
 	u8 eop;  /* End of packet, must be 17h */
 } __packed;
 
-struct gen5_bl_cmd_head {
+struct pip_bl_cmd_head {
 	__le16 addr;   /* Output report register address, must be 0004h */
 	/* Size of packet not including output report register address */
 	__le16 length;
 	u8 report_id;  /* Bootloader output report id, must be 40h */
 	u8 rsvd;  /* Reserved, must be 0 */
-	struct gen5_bl_packet_start packet_start;
+	struct pip_bl_packet_start packet_start;
 	u8 data[0];  /* Command data variable based on commands */
 } __packed;
 
 /* Initiate bootload command data structure. */
-struct gen5_bl_initiate_cmd_data {
+struct pip_bl_initiate_cmd_data {
 	/* Key must be "A5h 01h 02h 03h FFh FEh FDh 5Ah" */
 	u8 key[CYAPA_TSG_BL_KEY_SIZE];
 	u8 metadata_raw_parameter[CYAPA_TSG_FLASH_MAP_METADATA_SIZE];
 	__le16 metadata_crc;
 } __packed;
 
-struct gen5_bl_metadata_row_params {
+struct tsg_bl_metadata_row_params {
 	__le16 size;
 	__le16 maximum_size;
 	__le32 app_start;
@@ -332,13 +278,13 @@ struct gen5_bl_metadata_row_params {
 } __packed;
 
 /* Bootload program and verify row command data structure */
-struct gen5_bl_flash_row_head {
+struct tsg_bl_flash_row_head {
 	u8 flash_array_id;
 	__le16 flash_row_id;
 	u8 flash_data[0];
 } __packed;
 
-struct gen5_app_cmd_head {
+struct pip_app_cmd_head {
 	__le16 addr;   /* Output report register address, must be 0004h */
 	/* Size of packet not including output report register address */
 	__le16 length;
@@ -369,30 +315,26 @@ struct gen5_retrieve_panel_scan_data {
 	u8 data_id;
 } __packed;
 
-/* Variables to record latest gen5 trackpad power states. */
-#define GEN5_DEV_SET_PWR_STATE(cyapa, s)	((cyapa)->dev_pwr_mode = (s))
-#define GEN5_DEV_GET_PWR_STATE(cyapa)		((cyapa)->dev_pwr_mode)
-#define GEN5_DEV_SET_SLEEP_TIME(cyapa, t)	((cyapa)->dev_sleep_time = (t))
-#define GEN5_DEV_GET_SLEEP_TIME(cyapa)		((cyapa)->dev_sleep_time)
-#define GEN5_DEV_UNINIT_SLEEP_TIME(cyapa)	\
-		(((cyapa)->dev_sleep_time) == UNINIT_SLEEP_TIME)
-
+u8 pip_read_sys_info[] = { 0x04, 0x00, 0x05, 0x00, 0x2f, 0x00, 0x02 };
+u8 pip_bl_read_app_info[] = { 0x04, 0x00, 0x0b, 0x00, 0x40, 0x00,
+		0x01, 0x3c, 0x00, 0x00, 0xb0, 0x42, 0x17
+	};
 
-static u8 cyapa_gen5_bl_cmd_key[] = { 0xa5, 0x01, 0x02, 0x03,
+static u8 cyapa_pip_bl_cmd_key[] = { 0xa5, 0x01, 0x02, 0x03,
 	0xff, 0xfe, 0xfd, 0x5a };
 
-static int cyapa_gen5_initialize(struct cyapa *cyapa)
+int cyapa_pip_cmd_state_initialize(struct cyapa *cyapa)
 {
-	struct cyapa_gen5_cmd_states *gen5_pip = &cyapa->cmd_states.gen5;
+	struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip;
 
-	init_completion(&gen5_pip->cmd_ready);
-	atomic_set(&gen5_pip->cmd_issued, 0);
-	mutex_init(&gen5_pip->cmd_lock);
+	init_completion(&pip->cmd_ready);
+	atomic_set(&pip->cmd_issued, 0);
+	mutex_init(&pip->cmd_lock);
 
-	gen5_pip->resp_sort_func = NULL;
-	gen5_pip->in_progress_cmd = TSG_INVALID_CMD;
-	gen5_pip->resp_data = NULL;
-	gen5_pip->resp_len = NULL;
+	pip->resp_sort_func = NULL;
+	pip->in_progress_cmd = PIP_INVALID_CMD;
+	pip->resp_data = NULL;
+	pip->resp_len = NULL;
 
 	cyapa->dev_pwr_mode = UNINIT_PWR_MODE;
 	cyapa->dev_sleep_time = UNINIT_SLEEP_TIME;
@@ -401,7 +343,7 @@ static int cyapa_gen5_initialize(struct cyapa *cyapa)
 }
 
 /* Return negative errno, or else the number of bytes read. */
-static ssize_t cyapa_i2c_pip_read(struct cyapa *cyapa, u8 *buf, size_t size)
+ssize_t cyapa_i2c_pip_read(struct cyapa *cyapa, u8 *buf, size_t size)
 {
 	int ret;
 
@@ -415,14 +357,13 @@ static ssize_t cyapa_i2c_pip_read(struct cyapa *cyapa, u8 *buf, size_t size)
 
 	if (ret != size)
 		return (ret < 0) ? ret : -EIO;
-
 	return size;
 }
 
 /**
  * Return a negative errno code else zero on success.
  */
-static ssize_t cyapa_i2c_pip_write(struct cyapa *cyapa, u8 *buf, size_t size)
+ssize_t cyapa_i2c_pip_write(struct cyapa *cyapa, u8 *buf, size_t size)
 {
 	int ret;
 
@@ -441,10 +382,10 @@ static ssize_t cyapa_i2c_pip_write(struct cyapa *cyapa, u8 *buf, size_t size)
  * This function is aimed to dump all not read data in Gen5 trackpad
  * before send any command, otherwise, the interrupt line will be blocked.
  */
-static int cyapa_empty_pip_output_data(struct cyapa *cyapa,
+int cyapa_empty_pip_output_data(struct cyapa *cyapa,
 		u8 *buf, int *len, cb_sort func)
 {
-	struct cyapa_gen5_cmd_states *gen5_pip = &cyapa->cmd_states.gen5;
+	struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip;
 	int length;
 	int report_count;
 	int empty_count;
@@ -476,13 +417,13 @@ static int cyapa_empty_pip_output_data(struct cyapa *cyapa,
 		if (empty_count > 5)
 			return 0;
 
-		error = cyapa_i2c_pip_read(cyapa, gen5_pip->empty_buf,
-				GEN5_RESP_LENGTH_SIZE);
+		error = cyapa_i2c_pip_read(cyapa, pip->empty_buf,
+				PIP_RESP_LENGTH_SIZE);
 		if (error < 0)
 			return error;
 
-		length = get_unaligned_le16(gen5_pip->empty_buf);
-		if (length == GEN5_RESP_LENGTH_SIZE) {
+		length = get_unaligned_le16(pip->empty_buf);
+		if (length == PIP_RESP_LENGTH_SIZE) {
 			empty_count++;
 			continue;
 		} else if (length > CYAPA_REG_MAP_SIZE) {
@@ -490,11 +431,11 @@ static int cyapa_empty_pip_output_data(struct cyapa *cyapa,
 			return -EINVAL;
 		} else if (length == 0) {
 			/* Application or bootloader launch data polled out. */
-			length = GEN5_RESP_LENGTH_SIZE;
+			length = PIP_RESP_LENGTH_SIZE;
 			if (buf && buf_len && func &&
-				func(cyapa, gen5_pip->empty_buf, length)) {
+				func(cyapa, pip->empty_buf, length)) {
 				length = min(buf_len, length);
-				memcpy(buf, gen5_pip->empty_buf, length);
+				memcpy(buf, pip->empty_buf, length);
 				*len = length;
 				/* Response found, success. */
 				return 0;
@@ -502,19 +443,19 @@ static int cyapa_empty_pip_output_data(struct cyapa *cyapa,
 			continue;
 		}
 
-		error = cyapa_i2c_pip_read(cyapa, gen5_pip->empty_buf, length);
+		error = cyapa_i2c_pip_read(cyapa, pip->empty_buf, length);
 		if (error < 0)
 			return error;
 
 		report_count--;
 		empty_count = 0;
-		length = get_unaligned_le16(gen5_pip->empty_buf);
-		if (length <= GEN5_RESP_LENGTH_SIZE) {
+		length = get_unaligned_le16(pip->empty_buf);
+		if (length <= PIP_RESP_LENGTH_SIZE) {
 			empty_count++;
 		} else if (buf && buf_len && func &&
-			func(cyapa, gen5_pip->empty_buf, length)) {
+			func(cyapa, pip->empty_buf, length)) {
 			length = min(buf_len, length);
-			memcpy(buf, gen5_pip->empty_buf, length);
+			memcpy(buf, pip->empty_buf, length);
 			*len = length;
 			/* Response found, success. */
 			return 0;
@@ -531,24 +472,24 @@ static int cyapa_do_i2c_pip_cmd_irq_sync(
 		u8 *cmd, size_t cmd_len,
 		unsigned long timeout)
 {
-	struct cyapa_gen5_cmd_states *gen5_pip = &cyapa->cmd_states.gen5;
+	struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip;
 	int error;
 
 	/* Wait for interrupt to set ready completion */
-	init_completion(&gen5_pip->cmd_ready);
+	init_completion(&pip->cmd_ready);
 
-	atomic_inc(&gen5_pip->cmd_issued);
+	atomic_inc(&pip->cmd_issued);
 	error = cyapa_i2c_pip_write(cyapa, cmd, cmd_len);
 	if (error) {
-		atomic_dec(&gen5_pip->cmd_issued);
+		atomic_dec(&pip->cmd_issued);
 		return (error < 0) ? error : -EIO;
 	}
 
 	/* Wait for interrupt to indicate command is completed. */
-	timeout = wait_for_completion_timeout(&gen5_pip->cmd_ready,
+	timeout = wait_for_completion_timeout(&pip->cmd_ready,
 				msecs_to_jiffies(timeout));
 	if (timeout == 0) {
-		atomic_dec(&gen5_pip->cmd_issued);
+		atomic_dec(&pip->cmd_issued);
 		return -ETIMEDOUT;
 	}
 
@@ -562,15 +503,15 @@ static int cyapa_do_i2c_pip_cmd_polling(
 		unsigned long timeout,
 		cb_sort func)
 {
-	struct cyapa_gen5_cmd_states *gen5_pip = &cyapa->cmd_states.gen5;
+	struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip;
 	int tries;
 	int length;
 	int error;
 
-	atomic_inc(&gen5_pip->cmd_issued);
+	atomic_inc(&pip->cmd_issued);
 	error = cyapa_i2c_pip_write(cyapa, cmd, cmd_len);
 	if (error) {
-		atomic_dec(&gen5_pip->cmd_issued);
+		atomic_dec(&pip->cmd_issued);
 		return error < 0 ? error : -EIO;
 	}
 
@@ -591,11 +532,11 @@ static int cyapa_do_i2c_pip_cmd_polling(
 			error = error ? error : -ETIMEDOUT;
 	}
 
-	atomic_dec(&gen5_pip->cmd_issued);
+	atomic_dec(&pip->cmd_issued);
 	return error;
 }
 
-static int cyapa_i2c_pip_cmd_irq_sync(
+int cyapa_i2c_pip_cmd_irq_sync(
 		struct cyapa *cyapa,
 		u8 *cmd, int cmd_len,
 		u8 *resp_data, int *resp_len,
@@ -603,34 +544,34 @@ static int cyapa_i2c_pip_cmd_irq_sync(
 		cb_sort func,
 		bool irq_mode)
 {
-	struct cyapa_gen5_cmd_states *gen5_pip = &cyapa->cmd_states.gen5;
+	struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip;
 	int error;
 
 	if (!cmd || !cmd_len)
 		return -EINVAL;
 
 	/* Commands must be serialized. */
-	error = mutex_lock_interruptible(&gen5_pip->cmd_lock);
+	error = mutex_lock_interruptible(&pip->cmd_lock);
 	if (error)
 		return error;
 
-	gen5_pip->resp_sort_func = func;
-	gen5_pip->resp_data = resp_data;
-	gen5_pip->resp_len = resp_len;
+	pip->resp_sort_func = func;
+	pip->resp_data = resp_data;
+	pip->resp_len = resp_len;
 
-	if (cmd_len >= GEN5_MIN_APP_CMD_LENGTH &&
-			cmd[4] == GEN5_APP_CMD_REPORT_ID) {
+	if (cmd_len >= PIP_MIN_APP_CMD_LENGTH &&
+			cmd[4] == PIP_APP_CMD_REPORT_ID) {
 		/* Application command */
-		gen5_pip->in_progress_cmd = cmd[6] & 0x7f;
-	} else if (cmd_len >= GEN5_MIN_BL_CMD_LENGTH &&
-			cmd[4] == GEN5_BL_CMD_REPORT_ID) {
+		pip->in_progress_cmd = cmd[6] & 0x7f;
+	} else if (cmd_len >= PIP_MIN_BL_CMD_LENGTH &&
+			cmd[4] == PIP_BL_CMD_REPORT_ID) {
 		/* Bootloader command */
-		gen5_pip->in_progress_cmd = cmd[7];
+		pip->in_progress_cmd = cmd[7];
 	}
 
 	/* Send command data, wait and read output response data's length. */
 	if (irq_mode) {
-		gen5_pip->is_irq_mode = true;
+		pip->is_irq_mode = true;
 		error = cyapa_do_i2c_pip_cmd_irq_sync(cyapa, cmd, cmd_len,
 							timeout);
 		if (error == -ETIMEDOUT && resp_data &&
@@ -646,54 +587,54 @@ static int cyapa_i2c_pip_cmd_irq_sync(
 				error = error ? error : -ETIMEDOUT;
 		}
 	} else {
-		gen5_pip->is_irq_mode = false;
+		pip->is_irq_mode = false;
 		error = cyapa_do_i2c_pip_cmd_polling(cyapa, cmd, cmd_len,
 				resp_data, resp_len, timeout, func);
 	}
 
-	gen5_pip->resp_sort_func = NULL;
-	gen5_pip->resp_data = NULL;
-	gen5_pip->resp_len = NULL;
-	gen5_pip->in_progress_cmd = TSG_INVALID_CMD;
+	pip->resp_sort_func = NULL;
+	pip->resp_data = NULL;
+	pip->resp_len = NULL;
+	pip->in_progress_cmd = PIP_INVALID_CMD;
 
-	mutex_unlock(&gen5_pip->cmd_lock);
+	mutex_unlock(&pip->cmd_lock);
 	return error;
 }
 
-static bool cyapa_gen5_sort_tsg_pip_bl_resp_data(struct cyapa *cyapa,
+bool cyapa_sort_tsg_pip_bl_resp_data(struct cyapa *cyapa,
 		u8 *data, int len)
 {
-	if (!data || len < GEN5_MIN_BL_RESP_LENGTH)
+	if (!data || len < PIP_MIN_BL_RESP_LENGTH)
 		return false;
 
 	/* Bootloader input report id 30h */
-	if (data[GEN5_RESP_REPORT_ID_OFFSET] == GEN5_BL_RESP_REPORT_ID &&
-			data[GEN5_RESP_RSVD_OFFSET] == GEN5_RESP_RSVD_KEY &&
-			data[GEN5_RESP_BL_SOP_OFFSET] == GEN5_SOP_KEY)
+	if (data[PIP_RESP_REPORT_ID_OFFSET] == PIP_BL_RESP_REPORT_ID &&
+			data[PIP_RESP_RSVD_OFFSET] == PIP_RESP_RSVD_KEY &&
+			data[PIP_RESP_BL_SOP_OFFSET] == PIP_SOP_KEY)
 		return true;
 
 	return false;
 }
 
-static bool cyapa_gen5_sort_tsg_pip_app_resp_data(struct cyapa *cyapa,
+bool cyapa_sort_tsg_pip_app_resp_data(struct cyapa *cyapa,
 		u8 *data, int len)
 {
-	struct cyapa_gen5_cmd_states *gen5_pip = &cyapa->cmd_states.gen5;
+	struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip;
 	int resp_len;
 
-	if (!data || len < GEN5_MIN_APP_RESP_LENGTH)
+	if (!data || len < PIP_MIN_APP_RESP_LENGTH)
 		return false;
 
-	if (data[GEN5_RESP_REPORT_ID_OFFSET] == GEN5_APP_RESP_REPORT_ID &&
-			data[GEN5_RESP_RSVD_OFFSET] == GEN5_RESP_RSVD_KEY) {
-		resp_len = get_unaligned_le16(&data[GEN5_RESP_LENGTH_OFFSET]);
-		if (GET_GEN5_CMD_CODE(data[GEN5_RESP_APP_CMD_OFFSET]) == 0x00 &&
-			resp_len == GEN5_UNSUPPORTED_CMD_RESP_LENGTH &&
-			data[5] == gen5_pip->in_progress_cmd) {
+	if (data[PIP_RESP_REPORT_ID_OFFSET] == PIP_APP_RESP_REPORT_ID &&
+			data[PIP_RESP_RSVD_OFFSET] == PIP_RESP_RSVD_KEY) {
+		resp_len = get_unaligned_le16(&data[PIP_RESP_LENGTH_OFFSET]);
+		if (GET_PIP_CMD_CODE(data[PIP_RESP_APP_CMD_OFFSET]) == 0x00 &&
+			resp_len == PIP_UNSUPPORTED_CMD_RESP_LENGTH &&
+			data[5] == pip->in_progress_cmd) {
 			/* Unsupported command code */
 			return false;
-		} else if (GET_GEN5_CMD_CODE(data[GEN5_RESP_APP_CMD_OFFSET]) ==
-				gen5_pip->in_progress_cmd) {
+		} else if (GET_PIP_CMD_CODE(data[PIP_RESP_APP_CMD_OFFSET]) ==
+				pip->in_progress_cmd) {
 			/* Correct command response received */
 			return true;
 		}
@@ -702,10 +643,10 @@ static bool cyapa_gen5_sort_tsg_pip_app_resp_data(struct cyapa *cyapa,
 	return false;
 }
 
-static bool cyapa_gen5_sort_application_launch_data(struct cyapa *cyapa,
+static bool cyapa_sort_pip_application_launch_data(struct cyapa *cyapa,
 		u8 *buf, int len)
 {
-	if (buf == NULL || len < GEN5_RESP_LENGTH_SIZE)
+	if (buf == NULL || len < PIP_RESP_LENGTH_SIZE)
 		return false;
 
 	/*
@@ -718,25 +659,25 @@ static bool cyapa_gen5_sort_application_launch_data(struct cyapa *cyapa,
 	return false;
 }
 
-static bool cyapa_gen5_sort_hid_descriptor_data(struct cyapa *cyapa,
+static bool cyapa_sort_gen5_hid_descriptor_data(struct cyapa *cyapa,
 		u8 *buf, int len)
 {
 	int resp_len;
 	int max_output_len;
 
 	/* Check hid descriptor. */
-	if (len != GEN5_HID_DESCRIPTOR_SIZE)
+	if (len != PIP_HID_DESCRIPTOR_SIZE)
 		return false;
 
-	resp_len = get_unaligned_le16(&buf[GEN5_RESP_LENGTH_OFFSET]);
+	resp_len = get_unaligned_le16(&buf[PIP_RESP_LENGTH_OFFSET]);
 	max_output_len = get_unaligned_le16(&buf[16]);
-	if (resp_len == GEN5_HID_DESCRIPTOR_SIZE) {
-		if (buf[GEN5_RESP_REPORT_ID_OFFSET] == GEN5_BL_HID_REPORT_ID &&
+	if (resp_len == PIP_HID_DESCRIPTOR_SIZE) {
+		if (buf[PIP_RESP_REPORT_ID_OFFSET] == PIP_HID_BL_REPORT_ID &&
 				max_output_len == GEN5_BL_MAX_OUTPUT_LENGTH) {
 			/* BL mode HID Descriptor */
 			return true;
-		} else if ((buf[GEN5_RESP_REPORT_ID_OFFSET] ==
-				GEN5_APP_HID_REPORT_ID) &&
+		} else if ((buf[PIP_RESP_REPORT_ID_OFFSET] ==
+				PIP_HID_APP_REPORT_ID) &&
 				max_output_len == GEN5_APP_MAX_OUTPUT_LENGTH) {
 			/* APP mode HID Descriptor */
 			return true;
@@ -746,21 +687,21 @@ static bool cyapa_gen5_sort_hid_descriptor_data(struct cyapa *cyapa,
 	return false;
 }
 
-static bool cyapa_gen5_sort_deep_sleep_data(struct cyapa *cyapa,
+static bool cyapa_sort_pip_deep_sleep_data(struct cyapa *cyapa,
 		u8 *buf, int len)
 {
-	if (len == GEN5_DEEP_SLEEP_RESP_LENGTH &&
-		buf[GEN5_RESP_REPORT_ID_OFFSET] ==
-			GEN5_APP_DEEP_SLEEP_REPORT_ID &&
-		(buf[4] & GEN5_DEEP_SLEEP_OPCODE_MASK) ==
-			GEN5_DEEP_SLEEP_OPCODE)
+	if (len == PIP_DEEP_SLEEP_RESP_LENGTH &&
+		buf[PIP_RESP_REPORT_ID_OFFSET] ==
+			PIP_APP_DEEP_SLEEP_REPORT_ID &&
+		(buf[4] & PIP_DEEP_SLEEP_OPCODE_MASK) ==
+			PIP_DEEP_SLEEP_OPCODE)
 		return true;
 	return false;
 }
 
 static int gen5_idle_state_parse(struct cyapa *cyapa)
 {
-	u8 resp_data[GEN5_HID_DESCRIPTOR_SIZE];
+	u8 resp_data[PIP_HID_DESCRIPTOR_SIZE];
 	int max_output_len;
 	int length;
 	u8 cmd[2];
@@ -778,9 +719,9 @@ static int gen5_idle_state_parse(struct cyapa *cyapa)
 	if (ret != 3)
 		return ret < 0 ? ret : -EIO;
 
-	length = get_unaligned_le16(&resp_data[GEN5_RESP_LENGTH_OFFSET]);
-	if (length == GEN5_RESP_LENGTH_SIZE) {
-		/* Normal state of Gen5 with no data to respose */
+	length = get_unaligned_le16(&resp_data[PIP_RESP_LENGTH_OFFSET]);
+	if (length == PIP_RESP_LENGTH_SIZE) {
+		/* Normal state of Gen5 with no data to response */
 		cyapa->gen = CYAPA_GEN5;
 
 		cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
@@ -788,30 +729,30 @@ static int gen5_idle_state_parse(struct cyapa *cyapa)
 		/* Read description from trackpad device */
 		cmd[0] = 0x01;
 		cmd[1] = 0x00;
-		length = GEN5_HID_DESCRIPTOR_SIZE;
+		length = PIP_HID_DESCRIPTOR_SIZE;
 		error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
-				cmd, GEN5_RESP_LENGTH_SIZE,
+				cmd, PIP_RESP_LENGTH_SIZE,
 				resp_data, &length,
 				300,
-				cyapa_gen5_sort_hid_descriptor_data,
+				cyapa_sort_gen5_hid_descriptor_data,
 				false);
 		if (error)
 			return error;
 
 		length = get_unaligned_le16(
-				&resp_data[GEN5_RESP_LENGTH_OFFSET]);
+				&resp_data[PIP_RESP_LENGTH_OFFSET]);
 		max_output_len = get_unaligned_le16(&resp_data[16]);
-		if ((length == GEN5_HID_DESCRIPTOR_SIZE ||
-				length == GEN5_RESP_LENGTH_SIZE) &&
-			(resp_data[GEN5_RESP_REPORT_ID_OFFSET] ==
-				GEN5_BL_HID_REPORT_ID) &&
+		if ((length == PIP_HID_DESCRIPTOR_SIZE ||
+				length == PIP_RESP_LENGTH_SIZE) &&
+			(resp_data[PIP_RESP_REPORT_ID_OFFSET] ==
+				PIP_HID_BL_REPORT_ID) &&
 			max_output_len == GEN5_BL_MAX_OUTPUT_LENGTH) {
 			/* BL mode HID Description read */
 			cyapa->state = CYAPA_STATE_GEN5_BL;
-		} else if ((length == GEN5_HID_DESCRIPTOR_SIZE ||
-				length == GEN5_RESP_LENGTH_SIZE) &&
-			(resp_data[GEN5_RESP_REPORT_ID_OFFSET] ==
-				GEN5_APP_HID_REPORT_ID) &&
+		} else if ((length == PIP_HID_DESCRIPTOR_SIZE ||
+				length == PIP_RESP_LENGTH_SIZE) &&
+			(resp_data[PIP_RESP_REPORT_ID_OFFSET] ==
+				PIP_HID_APP_REPORT_ID) &&
 			max_output_len == GEN5_APP_MAX_OUTPUT_LENGTH) {
 			/* APP mode HID Description read */
 			cyapa->state = CYAPA_STATE_GEN5_APP;
@@ -839,14 +780,14 @@ static int gen5_hid_description_header_parse(struct cyapa *cyapa, u8 *reg_data)
 	 * or report any touch or button data.
 	 */
 	ret = cyapa_i2c_pip_read(cyapa, resp_data,
-			GEN5_HID_DESCRIPTOR_SIZE);
-	if (ret != GEN5_HID_DESCRIPTOR_SIZE)
+			PIP_HID_DESCRIPTOR_SIZE);
+	if (ret != PIP_HID_DESCRIPTOR_SIZE)
 		return ret < 0 ? ret : -EIO;
-	length = get_unaligned_le16(&resp_data[GEN5_RESP_LENGTH_OFFSET]);
+	length = get_unaligned_le16(&resp_data[PIP_RESP_LENGTH_OFFSET]);
 	max_output_len = get_unaligned_le16(&resp_data[16]);
-	if (length == GEN5_RESP_LENGTH_SIZE) {
-		if (reg_data[GEN5_RESP_REPORT_ID_OFFSET] ==
-				GEN5_BL_HID_REPORT_ID) {
+	if (length == PIP_RESP_LENGTH_SIZE) {
+		if (reg_data[PIP_RESP_REPORT_ID_OFFSET] ==
+				PIP_HID_BL_REPORT_ID) {
 			/*
 			 * BL mode HID Description has been previously
 			 * read out.
@@ -861,15 +802,15 @@ static int gen5_hid_description_header_parse(struct cyapa *cyapa, u8 *reg_data)
 			cyapa->gen = CYAPA_GEN5;
 			cyapa->state = CYAPA_STATE_GEN5_APP;
 		}
-	} else if (length == GEN5_HID_DESCRIPTOR_SIZE &&
-			resp_data[2] == GEN5_BL_HID_REPORT_ID &&
+	} else if (length == PIP_HID_DESCRIPTOR_SIZE &&
+			resp_data[2] == PIP_HID_BL_REPORT_ID &&
 			max_output_len == GEN5_BL_MAX_OUTPUT_LENGTH) {
 		/* BL mode HID Description read. */
 		cyapa->gen = CYAPA_GEN5;
 		cyapa->state = CYAPA_STATE_GEN5_BL;
-	} else if (length == GEN5_HID_DESCRIPTOR_SIZE &&
-			(resp_data[GEN5_RESP_REPORT_ID_OFFSET] ==
-				GEN5_APP_HID_REPORT_ID) &&
+	} else if (length == PIP_HID_DESCRIPTOR_SIZE &&
+			(resp_data[PIP_RESP_REPORT_ID_OFFSET] ==
+				PIP_HID_APP_REPORT_ID) &&
 			max_output_len == GEN5_APP_MAX_OUTPUT_LENGTH) {
 		/* APP mode HID Description read. */
 		cyapa->gen = CYAPA_GEN5;
@@ -886,22 +827,22 @@ static int gen5_report_data_header_parse(struct cyapa *cyapa, u8 *reg_data)
 {
 	int length;
 
-	length = get_unaligned_le16(&reg_data[GEN5_RESP_LENGTH_OFFSET]);
-	switch (reg_data[GEN5_RESP_REPORT_ID_OFFSET]) {
-	case GEN5_TOUCH_REPORT_ID:
-		if (length < GEN5_TOUCH_REPORT_HEAD_SIZE ||
-			length > GEN5_TOUCH_REPORT_MAX_SIZE)
+	length = get_unaligned_le16(&reg_data[PIP_RESP_LENGTH_OFFSET]);
+	switch (reg_data[PIP_RESP_REPORT_ID_OFFSET]) {
+	case PIP_TOUCH_REPORT_ID:
+		if (length < PIP_TOUCH_REPORT_HEAD_SIZE ||
+			length > PIP_TOUCH_REPORT_MAX_SIZE)
 			return -EINVAL;
 		break;
-	case GEN5_BTN_REPORT_ID:
+	case PIP_BTN_REPORT_ID:
 	case GEN5_OLD_PUSH_BTN_REPORT_ID:
-	case GEN5_PUSH_BTN_REPORT_ID:
-		if (length < GEN5_BTN_REPORT_HEAD_SIZE ||
-			length > GEN5_BTN_REPORT_MAX_SIZE)
+	case PIP_PUSH_BTN_REPORT_ID:
+		if (length < PIP_BTN_REPORT_HEAD_SIZE ||
+			length > PIP_BTN_REPORT_MAX_SIZE)
 			return -EINVAL;
 		break;
-	case GEN5_WAKEUP_EVENT_REPORT_ID:
-		if (length != GEN5_WAKEUP_EVENT_SIZE)
+	case PIP_WAKEUP_EVENT_REPORT_ID:
+		if (length != PIP_WAKEUP_EVENT_SIZE)
 			return -EINVAL;
 		break;
 	default:
@@ -915,7 +856,7 @@ static int gen5_report_data_header_parse(struct cyapa *cyapa, u8 *reg_data)
 
 static int gen5_cmd_resp_header_parse(struct cyapa *cyapa, u8 *reg_data)
 {
-	struct cyapa_gen5_cmd_states *gen5_pip = &cyapa->cmd_states.gen5;
+	struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip;
 	int length;
 	int ret;
 
@@ -924,15 +865,15 @@ static int gen5_cmd_resp_header_parse(struct cyapa *cyapa, u8 *reg_data)
 	 * otherwise Gen5 trackpad cannot response next command
 	 * or report any touch or button data.
 	 */
-	length = get_unaligned_le16(&reg_data[GEN5_RESP_LENGTH_OFFSET]);
-	ret = cyapa_i2c_pip_read(cyapa, gen5_pip->empty_buf, length);
+	length = get_unaligned_le16(&reg_data[PIP_RESP_LENGTH_OFFSET]);
+	ret = cyapa_i2c_pip_read(cyapa, pip->empty_buf, length);
 	if (ret != length)
 		return ret < 0 ? ret : -EIO;
 
-	if (length == GEN5_RESP_LENGTH_SIZE) {
+	if (length == PIP_RESP_LENGTH_SIZE) {
 		/* Previous command has read the data through out. */
-		if (reg_data[GEN5_RESP_REPORT_ID_OFFSET] ==
-				GEN5_BL_RESP_REPORT_ID) {
+		if (reg_data[PIP_RESP_REPORT_ID_OFFSET] ==
+				PIP_BL_RESP_REPORT_ID) {
 			/* Gen5 BL command response data detected */
 			cyapa->gen = CYAPA_GEN5;
 			cyapa->state = CYAPA_STATE_GEN5_BL;
@@ -941,21 +882,21 @@ static int gen5_cmd_resp_header_parse(struct cyapa *cyapa, u8 *reg_data)
 			cyapa->gen = CYAPA_GEN5;
 			cyapa->state = CYAPA_STATE_GEN5_APP;
 		}
-	} else if ((gen5_pip->empty_buf[GEN5_RESP_REPORT_ID_OFFSET] ==
-				GEN5_BL_RESP_REPORT_ID) &&
-			(gen5_pip->empty_buf[GEN5_RESP_RSVD_OFFSET] ==
-				GEN5_RESP_RSVD_KEY) &&
-			(gen5_pip->empty_buf[GEN5_RESP_BL_SOP_OFFSET] ==
-				GEN5_SOP_KEY) &&
-			(gen5_pip->empty_buf[length - 1] ==
-				GEN5_EOP_KEY)) {
+	} else if ((pip->empty_buf[PIP_RESP_REPORT_ID_OFFSET] ==
+				PIP_BL_RESP_REPORT_ID) &&
+			(pip->empty_buf[PIP_RESP_RSVD_OFFSET] ==
+				PIP_RESP_RSVD_KEY) &&
+			(pip->empty_buf[PIP_RESP_BL_SOP_OFFSET] ==
+				PIP_SOP_KEY) &&
+			(pip->empty_buf[length - 1] ==
+				PIP_EOP_KEY)) {
 		/* Gen5 BL command response data detected */
 		cyapa->gen = CYAPA_GEN5;
 		cyapa->state = CYAPA_STATE_GEN5_BL;
-	} else if (gen5_pip->empty_buf[GEN5_RESP_REPORT_ID_OFFSET] ==
-				GEN5_APP_RESP_REPORT_ID &&
-			gen5_pip->empty_buf[GEN5_RESP_RSVD_OFFSET] ==
-				GEN5_RESP_RSVD_KEY) {
+	} else if (pip->empty_buf[PIP_RESP_REPORT_ID_OFFSET] ==
+				PIP_APP_RESP_REPORT_ID &&
+			pip->empty_buf[PIP_RESP_RSVD_OFFSET] ==
+				PIP_RESP_RSVD_KEY) {
 		/* Gen5 APP command response data detected */
 		cyapa->gen = CYAPA_GEN5;
 		cyapa->state = CYAPA_STATE_GEN5_APP;
@@ -977,12 +918,12 @@ static int cyapa_gen5_state_parse(struct cyapa *cyapa, u8 *reg_data, int len)
 	cyapa->state = CYAPA_STATE_NO_DEVICE;
 
 	/* Parse based on Gen5 characteristic registers and bits */
-	length = get_unaligned_le16(&reg_data[GEN5_RESP_LENGTH_OFFSET]);
-	if (length == 0 || length == GEN5_RESP_LENGTH_SIZE) {
+	length = get_unaligned_le16(&reg_data[PIP_RESP_LENGTH_OFFSET]);
+	if (length == 0 || length == PIP_RESP_LENGTH_SIZE) {
 		gen5_idle_state_parse(cyapa);
-	} else if (length == GEN5_HID_DESCRIPTOR_SIZE &&
-			(reg_data[2] == GEN5_BL_HID_REPORT_ID ||
-				reg_data[2] == GEN5_APP_HID_REPORT_ID)) {
+	} else if (length == PIP_HID_DESCRIPTOR_SIZE &&
+			(reg_data[2] == PIP_HID_BL_REPORT_ID ||
+				reg_data[2] == PIP_HID_APP_REPORT_ID)) {
 		gen5_hid_description_header_parse(cyapa, reg_data);
 	} else if ((length == GEN5_APP_REPORT_DESCRIPTOR_SIZE ||
 			length == GEN5_APP_CONTRACT_REPORT_DESCRIPTOR_SIZE) &&
@@ -992,17 +933,17 @@ static int cyapa_gen5_state_parse(struct cyapa *cyapa, u8 *reg_data, int len)
 		cyapa->state = CYAPA_STATE_GEN5_APP;
 	} else if (length == GEN5_BL_REPORT_DESCRIPTOR_SIZE &&
 			reg_data[2] == GEN5_BL_REPORT_DESCRIPTOR_ID) {
-		/* 0x1D 0x00 0xFE is Gen5 BL report descriptior header. */
+		/* 0x1D 0x00 0xFE is Gen5 BL report descriptor header. */
 		cyapa->gen = CYAPA_GEN5;
 		cyapa->state = CYAPA_STATE_GEN5_BL;
-	} else if (reg_data[2] == GEN5_TOUCH_REPORT_ID ||
-			reg_data[2] == GEN5_BTN_REPORT_ID ||
+	} else if (reg_data[2] == PIP_TOUCH_REPORT_ID ||
+			reg_data[2] == PIP_BTN_REPORT_ID ||
 			reg_data[2] == GEN5_OLD_PUSH_BTN_REPORT_ID ||
-			reg_data[2] == GEN5_PUSH_BTN_REPORT_ID ||
-			reg_data[2] == GEN5_WAKEUP_EVENT_REPORT_ID) {
+			reg_data[2] == PIP_PUSH_BTN_REPORT_ID ||
+			reg_data[2] == PIP_WAKEUP_EVENT_REPORT_ID) {
 		gen5_report_data_header_parse(cyapa, reg_data);
-	} else if (reg_data[2] == GEN5_BL_RESP_REPORT_ID ||
-			reg_data[2] == GEN5_APP_RESP_REPORT_ID) {
+	} else if (reg_data[2] == PIP_BL_RESP_REPORT_ID ||
+			reg_data[2] == PIP_APP_RESP_REPORT_ID) {
 		gen5_cmd_resp_header_parse(cyapa, reg_data);
 	}
 
@@ -1023,14 +964,25 @@ static int cyapa_gen5_state_parse(struct cyapa *cyapa, u8 *reg_data, int len)
 	return -EAGAIN;
 }
 
-static int cyapa_gen5_bl_initiate(struct cyapa *cyapa,
-		const struct firmware *fw)
+static struct cyapa_tsg_bin_image_data_record *
+cyapa_get_image_record_data_num(const struct firmware *fw,
+		int *record_num)
+{
+	int head_size;
+
+	head_size = fw->data[0] + 1;
+	*record_num = (fw->size - head_size) /
+			sizeof(struct cyapa_tsg_bin_image_data_record);
+	return (struct cyapa_tsg_bin_image_data_record *)&fw->data[head_size];
+}
+
+int cyapa_pip_bl_initiate(struct cyapa *cyapa, const struct firmware *fw)
 {
-	struct cyapa_tsg_bin_image *image;
-	struct gen5_bl_cmd_head *bl_cmd_head;
-	struct gen5_bl_packet_start *bl_packet_start;
-	struct gen5_bl_initiate_cmd_data *cmd_data;
-	struct gen5_bl_packet_end *bl_packet_end;
+	struct cyapa_tsg_bin_image_data_record *image_records;
+	struct pip_bl_cmd_head *bl_cmd_head;
+	struct pip_bl_packet_start *bl_packet_start;
+	struct pip_bl_initiate_cmd_data *cmd_data;
+	struct pip_bl_packet_end *bl_packet_end;
 	u8 cmd[CYAPA_TSG_MAX_CMD_SIZE];
 	int cmd_len;
 	u16 cmd_data_len;
@@ -1046,30 +998,28 @@ static int cyapa_gen5_bl_initiate(struct cyapa *cyapa,
 	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
 
 	memset(cmd, 0, CYAPA_TSG_MAX_CMD_SIZE);
-	bl_cmd_head = (struct gen5_bl_cmd_head *)cmd;
+	bl_cmd_head = (struct pip_bl_cmd_head *)cmd;
 	cmd_data_len = CYAPA_TSG_BL_KEY_SIZE + CYAPA_TSG_FLASH_MAP_BLOCK_SIZE;
-	cmd_len = sizeof(struct gen5_bl_cmd_head) + cmd_data_len +
-		  sizeof(struct gen5_bl_packet_end);
+	cmd_len = sizeof(struct pip_bl_cmd_head) + cmd_data_len +
+		  sizeof(struct pip_bl_packet_end);
 
-	put_unaligned_le16(GEN5_OUTPUT_REPORT_ADDR, &bl_cmd_head->addr);
+	put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &bl_cmd_head->addr);
 	put_unaligned_le16(cmd_len - 2, &bl_cmd_head->length);
-	bl_cmd_head->report_id = GEN5_BL_CMD_REPORT_ID;
+	bl_cmd_head->report_id = PIP_BL_CMD_REPORT_ID;
 
 	bl_packet_start = &bl_cmd_head->packet_start;
-	bl_packet_start->sop = GEN5_SOP_KEY;
-	bl_packet_start->cmd_code = GEN5_BL_CMD_INITIATE_BL;
+	bl_packet_start->sop = PIP_SOP_KEY;
+	bl_packet_start->cmd_code = PIP_BL_CMD_INITIATE_BL;
 	/* 8 key bytes and 128 bytes block size */
 	put_unaligned_le16(cmd_data_len, &bl_packet_start->data_length);
 
-	cmd_data = (struct gen5_bl_initiate_cmd_data *)bl_cmd_head->data;
-	memcpy(cmd_data->key, cyapa_gen5_bl_cmd_key, CYAPA_TSG_BL_KEY_SIZE);
+	cmd_data = (struct pip_bl_initiate_cmd_data *)bl_cmd_head->data;
+	memcpy(cmd_data->key, cyapa_pip_bl_cmd_key, CYAPA_TSG_BL_KEY_SIZE);
+
+	image_records = cyapa_get_image_record_data_num(fw, &records_num);
 
-	/* Copy 60 bytes Meta Data Row Parameters */
-	image = (struct cyapa_tsg_bin_image *)fw->data;
-	records_num = (fw->size - sizeof(struct cyapa_tsg_bin_image_head)) /
-				sizeof(struct cyapa_tsg_bin_image_data_record);
 	/* APP_INTEGRITY row is always the last row block */
-	data = image->records[records_num - 1].record_data;
+	data = image_records[records_num - 1].record_data;
 	memcpy(cmd_data->metadata_raw_parameter, data,
 		CYAPA_TSG_FLASH_MAP_METADATA_SIZE);
 
@@ -1077,47 +1027,47 @@ static int cyapa_gen5_bl_initiate(struct cyapa *cyapa,
 				CYAPA_TSG_FLASH_MAP_METADATA_SIZE);
 	put_unaligned_le16(meta_data_crc, &cmd_data->metadata_crc);
 
-	bl_packet_end = (struct gen5_bl_packet_end *)(bl_cmd_head->data +
+	bl_packet_end = (struct pip_bl_packet_end *)(bl_cmd_head->data +
 				cmd_data_len);
 	cmd_crc = crc_itu_t(0xffff, (u8 *)bl_packet_start,
-		sizeof(struct gen5_bl_packet_start) + cmd_data_len);
+		sizeof(struct pip_bl_packet_start) + cmd_data_len);
 	put_unaligned_le16(cmd_crc, &bl_packet_end->crc);
-	bl_packet_end->eop = GEN5_EOP_KEY;
+	bl_packet_end->eop = PIP_EOP_KEY;
 
 	resp_len = sizeof(resp_data);
 	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
 			cmd, cmd_len,
 			resp_data, &resp_len, 12000,
-			cyapa_gen5_sort_tsg_pip_bl_resp_data, true);
-	if (error || resp_len != GEN5_BL_INITIATE_RESP_LEN ||
-			resp_data[2] != GEN5_BL_RESP_REPORT_ID ||
-			!GEN5_CMD_COMPLETE_SUCCESS(resp_data[5]))
+			cyapa_sort_tsg_pip_bl_resp_data, true);
+	if (error || resp_len != PIP_BL_INITIATE_RESP_LEN ||
+			resp_data[2] != PIP_BL_RESP_REPORT_ID ||
+			!PIP_CMD_COMPLETE_SUCCESS(resp_data))
 		return error ? error : -EAGAIN;
 
 	return 0;
 }
 
-static bool cyapa_gen5_sort_bl_exit_data(struct cyapa *cyapa, u8 *buf, int len)
+static bool cyapa_sort_pip_bl_exit_data(struct cyapa *cyapa, u8 *buf, int len)
 {
-	if (buf == NULL || len < GEN5_RESP_LENGTH_SIZE)
+	if (buf == NULL || len < PIP_RESP_LENGTH_SIZE)
 		return false;
 
 	if (buf[0] == 0 && buf[1] == 0)
 		return true;
 
 	/* Exit bootloader failed for some reason. */
-	if (len == GEN5_BL_FAIL_EXIT_RESP_LEN &&
-			buf[GEN5_RESP_REPORT_ID_OFFSET] ==
-				GEN5_BL_RESP_REPORT_ID &&
-			buf[GEN5_RESP_RSVD_OFFSET] == GEN5_RESP_RSVD_KEY &&
-			buf[GEN5_RESP_BL_SOP_OFFSET] == GEN5_SOP_KEY &&
-			buf[10] == GEN5_EOP_KEY)
+	if (len == PIP_BL_FAIL_EXIT_RESP_LEN &&
+			buf[PIP_RESP_REPORT_ID_OFFSET] ==
+				PIP_BL_RESP_REPORT_ID &&
+			buf[PIP_RESP_RSVD_OFFSET] == PIP_RESP_RSVD_KEY &&
+			buf[PIP_RESP_BL_SOP_OFFSET] == PIP_SOP_KEY &&
+			buf[10] == PIP_EOP_KEY)
 		return true;
 
 	return false;
 }
 
-static int cyapa_gen5_bl_exit(struct cyapa *cyapa)
+int cyapa_pip_bl_exit(struct cyapa *cyapa)
 {
 
 	u8 bl_gen5_bl_exit[] = { 0x04, 0x00,
@@ -1132,13 +1082,13 @@ static int cyapa_gen5_bl_exit(struct cyapa *cyapa)
 	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
 			bl_gen5_bl_exit, sizeof(bl_gen5_bl_exit),
 			resp_data, &resp_len,
-			5000, cyapa_gen5_sort_bl_exit_data, false);
+			5000, cyapa_sort_pip_bl_exit_data, false);
 	if (error)
 		return error;
 
-	if (resp_len == GEN5_BL_FAIL_EXIT_RESP_LEN ||
-			resp_data[GEN5_RESP_REPORT_ID_OFFSET] ==
-				GEN5_BL_RESP_REPORT_ID)
+	if (resp_len == PIP_BL_FAIL_EXIT_RESP_LEN ||
+			resp_data[PIP_RESP_REPORT_ID_OFFSET] ==
+				PIP_BL_RESP_REPORT_ID)
 		return -EAGAIN;
 
 	if (resp_data[0] == 0x00 && resp_data[1] == 0x00)
@@ -1147,7 +1097,7 @@ static int cyapa_gen5_bl_exit(struct cyapa *cyapa)
 	return -ENODEV;
 }
 
-static int cyapa_gen5_bl_enter(struct cyapa *cyapa)
+int cyapa_pip_bl_enter(struct cyapa *cyapa)
 {
 	u8 cmd[] = { 0x04, 0x00, 0x05, 0x00, 0x2F, 0x00, 0x01 };
 	u8 resp_data[2];
@@ -1157,15 +1107,12 @@ static int cyapa_gen5_bl_enter(struct cyapa *cyapa)
 	error = cyapa_poll_state(cyapa, 500);
 	if (error < 0)
 		return error;
-	if (cyapa->gen != CYAPA_GEN5)
-		return -EINVAL;
 
-	/* Already in Gen5 BL. Skipping exit. */
-	if (cyapa->state == CYAPA_STATE_GEN5_BL)
+	/* Already in bootloader mode, Skipping exit. */
+	if (cyapa_is_pip_bl_mode(cyapa))
 		return 0;
-
-	if (cyapa->state != CYAPA_STATE_GEN5_APP)
-		return -EAGAIN;
+	else if (!cyapa_is_pip_app_mode(cyapa))
+		return -EINVAL;
 
 	/* Try to dump all buffered report data before any send command. */
 	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
@@ -1179,39 +1126,38 @@ static int cyapa_gen5_bl_enter(struct cyapa *cyapa)
 	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
 			cmd, sizeof(cmd),
 			resp_data, &resp_len,
-			5000, cyapa_gen5_sort_application_launch_data,
+			5000, cyapa_sort_pip_application_launch_data,
 			true);
 	if (error || resp_data[0] != 0x00 || resp_data[1] != 0x00)
 		return error < 0 ? error : -EAGAIN;
 
 	cyapa->operational = false;
-	cyapa->state = CYAPA_STATE_GEN5_BL;
+	if (cyapa->gen == CYAPA_GEN5)
+		cyapa->state = CYAPA_STATE_GEN5_BL;
 	return 0;
 }
 
-static int cyapa_gen5_check_fw(struct cyapa *cyapa, const struct firmware *fw)
+int cyapa_pip_check_fw(struct cyapa *cyapa, const struct firmware *fw)
 {
 	struct device *dev = &cyapa->client->dev;
-	const struct cyapa_tsg_bin_image *image = (const void *)fw->data;
+	struct cyapa_tsg_bin_image_data_record *image_records;
 	const struct cyapa_tsg_bin_image_data_record *app_integrity;
-	const struct gen5_bl_metadata_row_params *metadata;
-	size_t flash_records_count;
+	const struct tsg_bl_metadata_row_params *metadata;
+	int flash_records_count;
 	u32 fw_app_start, fw_upgrade_start;
 	u16 fw_app_len, fw_upgrade_len;
 	u16 app_crc;
 	u16 app_integrity_crc;
-	int record_index;
 	int i;
 
-	flash_records_count = (fw->size -
-			sizeof(struct cyapa_tsg_bin_image_head)) /
-			sizeof(struct cyapa_tsg_bin_image_data_record);
+	image_records =
+		cyapa_get_image_record_data_num(fw, &flash_records_count);
 
 	/*
 	 * APP_INTEGRITY row is always the last row block,
 	 * and the row id must be 0x01ff.
 	 */
-	app_integrity = &image->records[flash_records_count - 1];
+	app_integrity = &image_records[flash_records_count - 1];
 
 	if (app_integrity->flash_array_id != 0x00 ||
 	    get_unaligned_be16(&app_integrity->row_number) != 0x01ff) {
@@ -1242,14 +1188,11 @@ static int cyapa_gen5_check_fw(struct cyapa *cyapa, const struct firmware *fw)
 		return -EINVAL;
 	}
 
-	/*
-	 * Verify application image CRC
-	 */
-	record_index = fw_app_start / CYAPA_TSG_FW_ROW_SIZE -
-				CYAPA_TSG_IMG_START_ROW_NUM;
+	/* Verify application image CRC. */
 	app_crc = 0xffffU;
 	for (i = 0; i < fw_app_len / CYAPA_TSG_FW_ROW_SIZE; i++) {
-		const u8 *data = image->records[record_index + i].record_data;
+		const u8 *data = image_records[i].record_data;
+
 		app_crc = crc_itu_t(app_crc, data, CYAPA_TSG_FW_ROW_SIZE);
 	}
 
@@ -1261,13 +1204,13 @@ static int cyapa_gen5_check_fw(struct cyapa *cyapa, const struct firmware *fw)
 	return 0;
 }
 
-static int cyapa_gen5_write_fw_block(struct cyapa *cyapa,
+static int cyapa_pip_write_fw_block(struct cyapa *cyapa,
 		struct cyapa_tsg_bin_image_data_record *flash_record)
 {
-	struct gen5_bl_cmd_head *bl_cmd_head;
-	struct gen5_bl_packet_start *bl_packet_start;
-	struct gen5_bl_flash_row_head *flash_row_head;
-	struct gen5_bl_packet_end *bl_packet_end;
+	struct pip_bl_cmd_head *bl_cmd_head;
+	struct pip_bl_packet_start *bl_packet_start;
+	struct tsg_bl_flash_row_head *flash_row_head;
+	struct pip_bl_packet_end *bl_packet_end;
 	u8 cmd[CYAPA_TSG_MAX_CMD_SIZE];
 	u16 cmd_len;
 	u8 flash_array_id;
@@ -1286,71 +1229,68 @@ static int cyapa_gen5_write_fw_block(struct cyapa *cyapa,
 	record_data = flash_record->record_data;
 
 	memset(cmd, 0, CYAPA_TSG_MAX_CMD_SIZE);
-	bl_cmd_head = (struct gen5_bl_cmd_head *)cmd;
+	bl_cmd_head = (struct pip_bl_cmd_head *)cmd;
 	bl_packet_start = &bl_cmd_head->packet_start;
-	cmd_len = sizeof(struct gen5_bl_cmd_head) +
-		  sizeof(struct gen5_bl_flash_row_head) +
+	cmd_len = sizeof(struct pip_bl_cmd_head) +
+		  sizeof(struct tsg_bl_flash_row_head) +
 		  CYAPA_TSG_FLASH_MAP_BLOCK_SIZE +
-		  sizeof(struct gen5_bl_packet_end);
+		  sizeof(struct pip_bl_packet_end);
 
-	put_unaligned_le16(GEN5_OUTPUT_REPORT_ADDR, &bl_cmd_head->addr);
+	put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &bl_cmd_head->addr);
 	/* Don't include 2 bytes register address */
 	put_unaligned_le16(cmd_len - 2, &bl_cmd_head->length);
-	bl_cmd_head->report_id = GEN5_BL_CMD_REPORT_ID;
-	bl_packet_start->sop = GEN5_SOP_KEY;
-	bl_packet_start->cmd_code = GEN5_BL_CMD_PROGRAM_VERIFY_ROW;
+	bl_cmd_head->report_id = PIP_BL_CMD_REPORT_ID;
+	bl_packet_start->sop = PIP_SOP_KEY;
+	bl_packet_start->cmd_code = PIP_BL_CMD_PROGRAM_VERIFY_ROW;
 
 	/* 1 (Flash Array ID) + 2 (Flash Row ID) + 128 (flash data) */
-	data_len = sizeof(struct gen5_bl_flash_row_head) + record_len;
+	data_len = sizeof(struct tsg_bl_flash_row_head) + record_len;
 	put_unaligned_le16(data_len, &bl_packet_start->data_length);
 
-	flash_row_head = (struct gen5_bl_flash_row_head *)bl_cmd_head->data;
+	flash_row_head = (struct tsg_bl_flash_row_head *)bl_cmd_head->data;
 	flash_row_head->flash_array_id = flash_array_id;
 	put_unaligned_le16(flash_row_id, &flash_row_head->flash_row_id);
 	memcpy(flash_row_head->flash_data, record_data, record_len);
 
-	bl_packet_end = (struct gen5_bl_packet_end *)(bl_cmd_head->data +
+	bl_packet_end = (struct pip_bl_packet_end *)(bl_cmd_head->data +
 						      data_len);
 	crc = crc_itu_t(0xffff, (u8 *)bl_packet_start,
-		sizeof(struct gen5_bl_packet_start) + data_len);
+		sizeof(struct pip_bl_packet_start) + data_len);
 	put_unaligned_le16(crc, &bl_packet_end->crc);
-	bl_packet_end->eop = GEN5_EOP_KEY;
+	bl_packet_end->eop = PIP_EOP_KEY;
 
 	resp_len = sizeof(resp_data);
 	error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, cmd_len,
 			resp_data, &resp_len,
-			500, cyapa_gen5_sort_tsg_pip_bl_resp_data, true);
-	if (error || resp_len != GEN5_BL_BLOCK_WRITE_RESP_LEN ||
-			resp_data[2] != GEN5_BL_RESP_REPORT_ID ||
-			!GEN5_CMD_COMPLETE_SUCCESS(resp_data[5]))
+			500, cyapa_sort_tsg_pip_bl_resp_data, true);
+	if (error || resp_len != PIP_BL_BLOCK_WRITE_RESP_LEN ||
+			resp_data[2] != PIP_BL_RESP_REPORT_ID ||
+			!PIP_CMD_COMPLETE_SUCCESS(resp_data))
 		return error < 0 ? error : -EAGAIN;
 
 	return 0;
 }
 
-static int cyapa_gen5_do_fw_update(struct cyapa *cyapa,
+int cyapa_pip_do_fw_update(struct cyapa *cyapa,
 		const struct firmware *fw)
 {
 	struct device *dev = &cyapa->client->dev;
-	struct cyapa_tsg_bin_image_data_record *flash_record;
-	struct cyapa_tsg_bin_image *image =
-		(struct cyapa_tsg_bin_image *)fw->data;
+	struct cyapa_tsg_bin_image_data_record *image_records;
 	int flash_records_count;
 	int i;
 	int error;
 
 	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
 
-	flash_records_count =
-		(fw->size - sizeof(struct cyapa_tsg_bin_image_head)) /
-			sizeof(struct cyapa_tsg_bin_image_data_record);
+	image_records =
+		cyapa_get_image_record_data_num(fw, &flash_records_count);
+
 	/*
 	 * The last flash row 0x01ff has been written through bl_initiate
 	 * command, so DO NOT write flash 0x01ff to trackpad device.
 	 */
 	for (i = 0; i < (flash_records_count - 1); i++) {
-		flash_record = &image->records[i];
-		error = cyapa_gen5_write_fw_block(cyapa, flash_record);
+		error = cyapa_pip_write_fw_block(cyapa, &image_records[i]);
 		if (error) {
 			dev_err(dev, "%s: Gen5 FW update aborted: %d\n",
 				__func__, error);
@@ -1372,9 +1312,9 @@ static int cyapa_gen5_change_power_state(struct cyapa *cyapa, u8 power_state)
 	resp_len = sizeof(resp_data);
 	error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd),
 			resp_data, &resp_len,
-			500, cyapa_gen5_sort_tsg_pip_app_resp_data, false);
+			500, cyapa_sort_tsg_pip_app_resp_data, false);
 	if (error || !VALID_CMD_RESP_HEADER(resp_data, 0x08) ||
-			!GEN5_CMD_COMPLETE_SUCCESS(resp_data[5]))
+			!PIP_CMD_COMPLETE_SUCCESS(resp_data))
 		return error < 0 ? error : -EINVAL;
 
 	return 0;
@@ -1383,7 +1323,7 @@ static int cyapa_gen5_change_power_state(struct cyapa *cyapa, u8 power_state)
 static int cyapa_gen5_set_interval_time(struct cyapa *cyapa,
 		u8 parameter_id, u16 interval_time)
 {
-	struct gen5_app_cmd_head *app_cmd_head;
+	struct pip_app_cmd_head *app_cmd_head;
 	struct gen5_app_set_parameter_data *parameter_data;
 	u8 cmd[CYAPA_TSG_MAX_CMD_SIZE];
 	int cmd_len;
@@ -1393,10 +1333,10 @@ static int cyapa_gen5_set_interval_time(struct cyapa *cyapa,
 	int error;
 
 	memset(cmd, 0, CYAPA_TSG_MAX_CMD_SIZE);
-	app_cmd_head = (struct gen5_app_cmd_head *)cmd;
+	app_cmd_head = (struct pip_app_cmd_head *)cmd;
 	parameter_data = (struct gen5_app_set_parameter_data *)
 			 app_cmd_head->parameter_data;
-	cmd_len = sizeof(struct gen5_app_cmd_head) +
+	cmd_len = sizeof(struct pip_app_cmd_head) +
 		  sizeof(struct gen5_app_set_parameter_data);
 
 	switch (parameter_id) {
@@ -1413,14 +1353,14 @@ static int cyapa_gen5_set_interval_time(struct cyapa *cyapa,
 		return -EINVAL;
 	}
 
-	put_unaligned_le16(GEN5_OUTPUT_REPORT_ADDR, &app_cmd_head->addr);
+	put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &app_cmd_head->addr);
 	/*
 	 * Don't include unused parameter value bytes and
 	 * 2 bytes register address.
 	 */
 	put_unaligned_le16(cmd_len - (4 - parameter_size) - 2,
 			   &app_cmd_head->length);
-	app_cmd_head->report_id = GEN5_APP_CMD_REPORT_ID;
+	app_cmd_head->report_id = PIP_APP_CMD_REPORT_ID;
 	app_cmd_head->cmd_code = GEN5_CMD_SET_PARAMETER;
 	parameter_data->parameter_id = parameter_id;
 	parameter_data->parameter_size = parameter_size;
@@ -1428,7 +1368,7 @@ static int cyapa_gen5_set_interval_time(struct cyapa *cyapa,
 	resp_len = sizeof(resp_data);
 	error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, cmd_len,
 			resp_data, &resp_len,
-			500, cyapa_gen5_sort_tsg_pip_app_resp_data, false);
+			500, cyapa_sort_tsg_pip_app_resp_data, false);
 	if (error || resp_data[5] != parameter_id ||
 		resp_data[6] != parameter_size ||
 		!VALID_CMD_RESP_HEADER(resp_data, GEN5_CMD_SET_PARAMETER))
@@ -1440,7 +1380,7 @@ static int cyapa_gen5_set_interval_time(struct cyapa *cyapa,
 static int cyapa_gen5_get_interval_time(struct cyapa *cyapa,
 		u8 parameter_id, u16 *interval_time)
 {
-	struct gen5_app_cmd_head *app_cmd_head;
+	struct pip_app_cmd_head *app_cmd_head;
 	struct gen5_app_get_parameter_data *parameter_data;
 	u8 cmd[CYAPA_TSG_MAX_CMD_SIZE];
 	int cmd_len;
@@ -1451,10 +1391,10 @@ static int cyapa_gen5_get_interval_time(struct cyapa *cyapa,
 	int error;
 
 	memset(cmd, 0, CYAPA_TSG_MAX_CMD_SIZE);
-	app_cmd_head = (struct gen5_app_cmd_head *)cmd;
+	app_cmd_head = (struct pip_app_cmd_head *)cmd;
 	parameter_data = (struct gen5_app_get_parameter_data *)
 			 app_cmd_head->parameter_data;
-	cmd_len = sizeof(struct gen5_app_cmd_head) +
+	cmd_len = sizeof(struct pip_app_cmd_head) +
 		  sizeof(struct gen5_app_get_parameter_data);
 
 	*interval_time = 0;
@@ -1472,17 +1412,17 @@ static int cyapa_gen5_get_interval_time(struct cyapa *cyapa,
 		return -EINVAL;
 	}
 
-	put_unaligned_le16(GEN5_HID_DESCRIPTOR_ADDR, &app_cmd_head->addr);
+	put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &app_cmd_head->addr);
 	/* Don't include 2 bytes register address */
 	put_unaligned_le16(cmd_len - 2, &app_cmd_head->length);
-	app_cmd_head->report_id = GEN5_APP_CMD_REPORT_ID;
+	app_cmd_head->report_id = PIP_APP_CMD_REPORT_ID;
 	app_cmd_head->cmd_code = GEN5_CMD_GET_PARAMETER;
 	parameter_data->parameter_id = parameter_id;
 
 	resp_len = sizeof(resp_data);
 	error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, cmd_len,
 			resp_data, &resp_len,
-			500, cyapa_gen5_sort_tsg_pip_app_resp_data, false);
+			500, cyapa_sort_tsg_pip_app_resp_data, false);
 	if (error || resp_data[5] != parameter_id || resp_data[6] == 0 ||
 		!VALID_CMD_RESP_HEADER(resp_data, GEN5_CMD_GET_PARAMETER))
 		return error < 0 ? error : -EINVAL;
@@ -1497,18 +1437,18 @@ static int cyapa_gen5_get_interval_time(struct cyapa *cyapa,
 
 static int cyapa_gen5_disable_pip_report(struct cyapa *cyapa)
 {
-	struct gen5_app_cmd_head *app_cmd_head;
+	struct pip_app_cmd_head *app_cmd_head;
 	u8 cmd[10];
 	u8 resp_data[7];
 	int resp_len;
 	int error;
 
 	memset(cmd, 0, sizeof(cmd));
-	app_cmd_head = (struct gen5_app_cmd_head *)cmd;
+	app_cmd_head = (struct pip_app_cmd_head *)cmd;
 
-	put_unaligned_le16(GEN5_HID_DESCRIPTOR_ADDR, &app_cmd_head->addr);
+	put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &app_cmd_head->addr);
 	put_unaligned_le16(sizeof(cmd) - 2, &app_cmd_head->length);
-	app_cmd_head->report_id = GEN5_APP_CMD_REPORT_ID;
+	app_cmd_head->report_id = PIP_APP_CMD_REPORT_ID;
 	app_cmd_head->cmd_code = GEN5_CMD_SET_PARAMETER;
 	app_cmd_head->parameter_data[0] = GEN5_PARAMETER_DISABLE_PIP_REPORT;
 	app_cmd_head->parameter_data[1] = 0x01;
@@ -1516,7 +1456,7 @@ static int cyapa_gen5_disable_pip_report(struct cyapa *cyapa)
 	resp_len = sizeof(resp_data);
 	error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd),
 			resp_data, &resp_len,
-			500, cyapa_gen5_sort_tsg_pip_app_resp_data, false);
+			500, cyapa_sort_tsg_pip_app_resp_data, false);
 	if (error || resp_data[5] != GEN5_PARAMETER_DISABLE_PIP_REPORT ||
 		!VALID_CMD_RESP_HEADER(resp_data, GEN5_CMD_SET_PARAMETER) ||
 		resp_data[6] != 0x01)
@@ -1525,19 +1465,19 @@ static int cyapa_gen5_disable_pip_report(struct cyapa *cyapa)
 	return 0;
 }
 
-static int cyapa_gen5_deep_sleep(struct cyapa *cyapa, u8 state)
+int cyapa_pip_deep_sleep(struct cyapa *cyapa, u8 state)
 {
 	u8 cmd[] = { 0x05, 0x00, 0x00, 0x08};
 	u8 resp_data[5];
 	int resp_len;
 	int error;
 
-	cmd[2] = state & GEN5_DEEP_SLEEP_STATE_MASK;
+	cmd[2] = state & PIP_DEEP_SLEEP_STATE_MASK;
 	resp_len = sizeof(resp_data);
 	error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd),
 			resp_data, &resp_len,
-			500, cyapa_gen5_sort_deep_sleep_data, false);
-	if (error || ((resp_data[3] & GEN5_DEEP_SLEEP_STATE_MASK) != state))
+			500, cyapa_sort_pip_deep_sleep_data, false);
+	if (error || ((resp_data[3] & PIP_DEEP_SLEEP_STATE_MASK) != state))
 		return -EINVAL;
 
 	return 0;
@@ -1556,40 +1496,40 @@ static int cyapa_gen5_set_power_mode(struct cyapa *cyapa,
 	/* Dump all the report data before do power mode commmands. */
 	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
 
-	if (GEN5_DEV_GET_PWR_STATE(cyapa) == UNINIT_PWR_MODE) {
+	if (PIP_DEV_GET_PWR_STATE(cyapa) == UNINIT_PWR_MODE) {
 		/*
 		 * Assume TP in deep sleep mode when driver is loaded,
 		 * avoid driver unload and reload command IO issue caused by TP
 		 * has been set into deep sleep mode when unloading.
 		 */
-		GEN5_DEV_SET_PWR_STATE(cyapa, PWR_MODE_OFF);
+		PIP_DEV_SET_PWR_STATE(cyapa, PWR_MODE_OFF);
 	}
 
-	if (GEN5_DEV_UNINIT_SLEEP_TIME(cyapa) &&
-			GEN5_DEV_GET_PWR_STATE(cyapa) != PWR_MODE_OFF)
+	if (PIP_DEV_UNINIT_SLEEP_TIME(cyapa) &&
+			PIP_DEV_GET_PWR_STATE(cyapa) != PWR_MODE_OFF)
 		if (cyapa_gen5_get_interval_time(cyapa,
 				GEN5_PARAMETER_LP_INTRVL_ID,
 				&cyapa->dev_sleep_time) != 0)
-			GEN5_DEV_SET_SLEEP_TIME(cyapa, UNINIT_SLEEP_TIME);
+			PIP_DEV_SET_SLEEP_TIME(cyapa, UNINIT_SLEEP_TIME);
 
-	if (GEN5_DEV_GET_PWR_STATE(cyapa) == power_mode) {
+	if (PIP_DEV_GET_PWR_STATE(cyapa) == power_mode) {
 		if (power_mode == PWR_MODE_OFF ||
 			power_mode == PWR_MODE_FULL_ACTIVE ||
 			power_mode == PWR_MODE_BTN_ONLY ||
-			GEN5_DEV_GET_SLEEP_TIME(cyapa) == sleep_time) {
+			PIP_DEV_GET_SLEEP_TIME(cyapa) == sleep_time) {
 			/* Has in correct power mode state, early return. */
 			return 0;
 		}
 	}
 
 	if (power_mode == PWR_MODE_OFF) {
-		error = cyapa_gen5_deep_sleep(cyapa, GEN5_DEEP_SLEEP_STATE_OFF);
+		error = cyapa_pip_deep_sleep(cyapa, PIP_DEEP_SLEEP_STATE_OFF);
 		if (error) {
 			dev_err(dev, "enter deep sleep fail: %d\n", error);
 			return error;
 		}
 
-		GEN5_DEV_SET_PWR_STATE(cyapa, PWR_MODE_OFF);
+		PIP_DEV_SET_PWR_STATE(cyapa, PWR_MODE_OFF);
 		return 0;
 	}
 
@@ -1598,8 +1538,8 @@ static int cyapa_gen5_set_power_mode(struct cyapa *cyapa,
 	 * state directly, must be wake up from sleep firstly, then
 	 * continue to do next power sate change.
 	 */
-	if (GEN5_DEV_GET_PWR_STATE(cyapa) == PWR_MODE_OFF) {
-		error = cyapa_gen5_deep_sleep(cyapa, GEN5_DEEP_SLEEP_STATE_ON);
+	if (PIP_DEV_GET_PWR_STATE(cyapa) == PWR_MODE_OFF) {
+		error = cyapa_pip_deep_sleep(cyapa, PIP_DEEP_SLEEP_STATE_ON);
 		if (error) {
 			dev_err(dev, "deep sleep wake fail: %d\n", error);
 			return error;
@@ -1614,7 +1554,7 @@ static int cyapa_gen5_set_power_mode(struct cyapa *cyapa,
 			return error;
 		}
 
-		GEN5_DEV_SET_PWR_STATE(cyapa, PWR_MODE_FULL_ACTIVE);
+		PIP_DEV_SET_PWR_STATE(cyapa, PWR_MODE_FULL_ACTIVE);
 	} else if (power_mode == PWR_MODE_BTN_ONLY) {
 		error = cyapa_gen5_change_power_state(cyapa,
 				GEN5_POWER_STATE_BTN_ONLY);
@@ -1623,19 +1563,19 @@ static int cyapa_gen5_set_power_mode(struct cyapa *cyapa,
 			return error;
 		}
 
-		GEN5_DEV_SET_PWR_STATE(cyapa, PWR_MODE_BTN_ONLY);
+		PIP_DEV_SET_PWR_STATE(cyapa, PWR_MODE_BTN_ONLY);
 	} else {
 		/*
 		 * Continue to change power mode even failed to set
 		 * interval time, it won't affect the power mode change.
 		 * except the sleep interval time is not correct.
 		 */
-		if (GEN5_DEV_UNINIT_SLEEP_TIME(cyapa) ||
-				sleep_time != GEN5_DEV_GET_SLEEP_TIME(cyapa))
+		if (PIP_DEV_UNINIT_SLEEP_TIME(cyapa) ||
+				sleep_time != PIP_DEV_GET_SLEEP_TIME(cyapa))
 			if (cyapa_gen5_set_interval_time(cyapa,
 					GEN5_PARAMETER_LP_INTRVL_ID,
 					sleep_time) == 0)
-				GEN5_DEV_SET_SLEEP_TIME(cyapa, sleep_time);
+				PIP_DEV_SET_SLEEP_TIME(cyapa, sleep_time);
 
 		if (sleep_time <= GEN5_POWER_READY_MAX_INTRVL_TIME)
 			power_state = GEN5_POWER_STATE_READY;
@@ -1661,14 +1601,14 @@ static int cyapa_gen5_set_power_mode(struct cyapa *cyapa,
 		cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
 		cyapa_gen5_disable_pip_report(cyapa);
 
-		GEN5_DEV_SET_PWR_STATE(cyapa,
+		PIP_DEV_SET_PWR_STATE(cyapa,
 			cyapa_sleep_time_to_pwr_cmd(sleep_time));
 	}
 
 	return 0;
 }
 
-static int cyapa_gen5_resume_scanning(struct cyapa *cyapa)
+int cyapa_pip_resume_scanning(struct cyapa *cyapa)
 {
 	u8 cmd[] = { 0x04, 0x00, 0x05, 0x00, 0x2f, 0x00, 0x04 };
 	u8 resp_data[6];
@@ -1682,7 +1622,7 @@ static int cyapa_gen5_resume_scanning(struct cyapa *cyapa)
 	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
 			cmd, sizeof(cmd),
 			resp_data, &resp_len,
-			500, cyapa_gen5_sort_tsg_pip_app_resp_data, true);
+			500, cyapa_sort_tsg_pip_app_resp_data, true);
 	if (error || !VALID_CMD_RESP_HEADER(resp_data, 0x04))
 		return -EINVAL;
 
@@ -1692,7 +1632,7 @@ static int cyapa_gen5_resume_scanning(struct cyapa *cyapa)
 	return 0;
 }
 
-static int cyapa_gen5_suspend_scanning(struct cyapa *cyapa)
+int cyapa_pip_suspend_scanning(struct cyapa *cyapa)
 {
 	u8 cmd[] = { 0x04, 0x00, 0x05, 0x00, 0x2f, 0x00, 0x03 };
 	u8 resp_data[6];
@@ -1706,7 +1646,7 @@ static int cyapa_gen5_suspend_scanning(struct cyapa *cyapa)
 	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
 			cmd, sizeof(cmd),
 			resp_data, &resp_len,
-			500, cyapa_gen5_sort_tsg_pip_app_resp_data, true);
+			500, cyapa_sort_tsg_pip_app_resp_data, true);
 	if (error || !VALID_CMD_RESP_HEADER(resp_data, 0x03))
 		return -EINVAL;
 
@@ -1716,10 +1656,10 @@ static int cyapa_gen5_suspend_scanning(struct cyapa *cyapa)
 	return 0;
 }
 
-static int cyapa_gen5_calibrate_pwcs(struct cyapa *cyapa,
+static int cyapa_pip_calibrate_pwcs(struct cyapa *cyapa,
 		u8 calibrate_sensing_mode_type)
 {
-	struct gen5_app_cmd_head *app_cmd_head;
+	struct pip_app_cmd_head *app_cmd_head;
 	u8 cmd[8];
 	u8 resp_data[6];
 	int resp_len;
@@ -1729,25 +1669,25 @@ static int cyapa_gen5_calibrate_pwcs(struct cyapa *cyapa,
 	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
 
 	memset(cmd, 0, sizeof(cmd));
-	app_cmd_head = (struct gen5_app_cmd_head *)cmd;
-	put_unaligned_le16(GEN5_OUTPUT_REPORT_ADDR, &app_cmd_head->addr);
+	app_cmd_head = (struct pip_app_cmd_head *)cmd;
+	put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &app_cmd_head->addr);
 	put_unaligned_le16(sizeof(cmd) - 2, &app_cmd_head->length);
-	app_cmd_head->report_id = GEN5_APP_CMD_REPORT_ID;
-	app_cmd_head->cmd_code = GEN5_CMD_CALIBRATE;
+	app_cmd_head->report_id = PIP_APP_CMD_REPORT_ID;
+	app_cmd_head->cmd_code = PIP_CMD_CALIBRATE;
 	app_cmd_head->parameter_data[0] = calibrate_sensing_mode_type;
 	resp_len = sizeof(resp_data);
 	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
 			cmd, sizeof(cmd),
 			resp_data, &resp_len,
-			5000, cyapa_gen5_sort_tsg_pip_app_resp_data, true);
-	if (error || !VALID_CMD_RESP_HEADER(resp_data, GEN5_CMD_CALIBRATE) ||
-			!GEN5_CMD_COMPLETE_SUCCESS(resp_data[5]))
+			5000, cyapa_sort_tsg_pip_app_resp_data, true);
+	if (error || !VALID_CMD_RESP_HEADER(resp_data, PIP_CMD_CALIBRATE) ||
+			!PIP_CMD_COMPLETE_SUCCESS(resp_data))
 		return error < 0 ? error : -EAGAIN;
 
 	return 0;
 }
 
-static ssize_t cyapa_gen5_do_calibrate(struct device *dev,
+ssize_t cyapa_pip_do_calibrate(struct device *dev,
 				     struct device_attribute *attr,
 				     const char *buf, size_t count)
 {
@@ -1755,25 +1695,25 @@ static ssize_t cyapa_gen5_do_calibrate(struct device *dev,
 	int error, calibrate_error;
 
 	/* 1. Suspend Scanning*/
-	error = cyapa_gen5_suspend_scanning(cyapa);
+	error = cyapa_pip_suspend_scanning(cyapa);
 	if (error)
 		return error;
 
 	/* 2. Do mutual capacitance fine calibrate. */
-	calibrate_error = cyapa_gen5_calibrate_pwcs(cyapa,
-				CYAPA_SENSING_MODE_MUTUAL_CAP_FINE);
+	calibrate_error = cyapa_pip_calibrate_pwcs(cyapa,
+				PIP_SENSING_MODE_MUTUAL_CAP_FINE);
 	if (calibrate_error)
 		goto resume_scanning;
 
 	/* 3. Do self capacitance calibrate. */
-	calibrate_error = cyapa_gen5_calibrate_pwcs(cyapa,
-				CYAPA_SENSING_MODE_SELF_CAP);
+	calibrate_error = cyapa_pip_calibrate_pwcs(cyapa,
+				PIP_SENSING_MODE_SELF_CAP);
 	if (calibrate_error)
 		goto resume_scanning;
 
 resume_scanning:
 	/* 4. Resume Scanning*/
-	error = cyapa_gen5_resume_scanning(cyapa);
+	error = cyapa_pip_resume_scanning(cyapa);
 	if (error || calibrate_error)
 		return error ? error : calibrate_error;
 
@@ -1856,7 +1796,7 @@ static void cyapa_gen5_guess_electrodes(struct cyapa *cyapa,
  * If the input value of @data_size is not 0, than means read the mutual or
  * self local PWC data. The @idac_max, @idac_min and @idac_ave are used to
  * return the max, min and average value of the mutual or self local PWC data.
- * Note, in order to raed mutual local PWC data, must read invoke this function
+ * Note, in order to read mutual local PWC data, must read invoke this function
  * to read the mutual global idac data firstly to set the correct Rx number
  * value, otherwise, the read mutual idac and PWC data may not correct.
  */
@@ -1864,7 +1804,7 @@ static int cyapa_gen5_read_idac_data(struct cyapa *cyapa,
 		u8 cmd_code, u8 idac_data_type, int *data_size,
 		int *idac_max, int *idac_min, int *idac_ave)
 {
-	struct gen5_app_cmd_head *cmd_head;
+	struct pip_app_cmd_head *cmd_head;
 	u8 cmd[12];
 	u8 resp_data[256];
 	int resp_len;
@@ -1879,7 +1819,7 @@ static int cyapa_gen5_read_idac_data(struct cyapa *cyapa,
 	int i;
 	int error;
 
-	if (cmd_code != GEN5_CMD_RETRIEVE_DATA_STRUCTURE ||
+	if (cmd_code != PIP_RETRIEVE_DATA_STRUCTURE ||
 		(idac_data_type != GEN5_RETRIEVE_MUTUAL_PWC_DATA &&
 		idac_data_type != GEN5_RETRIEVE_SELF_CAP_PWC_DATA) ||
 		!data_size || !idac_max || !idac_min || !idac_ave)
@@ -1935,10 +1875,10 @@ static int cyapa_gen5_read_idac_data(struct cyapa *cyapa,
 	}
 
 	memset(cmd, 0, sizeof(cmd));
-	cmd_head = (struct gen5_app_cmd_head *)cmd;
-	put_unaligned_le16(GEN5_OUTPUT_REPORT_ADDR, &cmd_head->addr);
+	cmd_head = (struct pip_app_cmd_head *)cmd;
+	put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &cmd_head->addr);
 	put_unaligned_le16(sizeof(cmd) - 2, &cmd_head->length);
-	cmd_head->report_id = GEN5_APP_CMD_REPORT_ID;
+	cmd_head->report_id = PIP_APP_CMD_REPORT_ID;
 	cmd_head->cmd_code = cmd_code;
 	do {
 		read_elements = (256 - GEN5_RESP_DATA_STRUCTURE_OFFSET) /
@@ -1953,11 +1893,11 @@ static int cyapa_gen5_read_idac_data(struct cyapa *cyapa,
 		error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
 				cmd, sizeof(cmd),
 				resp_data, &resp_len,
-				500, cyapa_gen5_sort_tsg_pip_app_resp_data,
+				500, cyapa_sort_tsg_pip_app_resp_data,
 				true);
 		if (error || resp_len < GEN5_RESP_DATA_STRUCTURE_OFFSET ||
 				!VALID_CMD_RESP_HEADER(resp_data, cmd_code) ||
-				!GEN5_CMD_COMPLETE_SUCCESS(resp_data[5]) ||
+				!PIP_CMD_COMPLETE_SUCCESS(resp_data) ||
 				resp_data[6] != idac_data_type)
 			return (error < 0) ? error : -EAGAIN;
 		read_len = get_unaligned_le16(&resp_data[7]);
@@ -1997,7 +1937,7 @@ static int cyapa_gen5_read_idac_data(struct cyapa *cyapa,
 				tmp_count < cyapa->aligned_electrodes_rx &&
 				read_global_idac) {
 				/*
-				 * The value gap betwen global and local mutual
+				 * The value gap between global and local mutual
 				 * idac data must bigger than 50%.
 				 * Normally, global value bigger than 50,
 				 * local values less than 10.
@@ -2061,7 +2001,7 @@ static int cyapa_gen5_read_mutual_idac_data(struct cyapa *cyapa,
 
 	data_size = 0;
 	error = cyapa_gen5_read_idac_data(cyapa,
-		GEN5_CMD_RETRIEVE_DATA_STRUCTURE,
+		PIP_RETRIEVE_DATA_STRUCTURE,
 		GEN5_RETRIEVE_MUTUAL_PWC_DATA,
 		&data_size,
 		gidac_mutual_max, gidac_mutual_min, gidac_mutual_ave);
@@ -2069,7 +2009,7 @@ static int cyapa_gen5_read_mutual_idac_data(struct cyapa *cyapa,
 		return error;
 
 	error = cyapa_gen5_read_idac_data(cyapa,
-		GEN5_CMD_RETRIEVE_DATA_STRUCTURE,
+		PIP_RETRIEVE_DATA_STRUCTURE,
 		GEN5_RETRIEVE_MUTUAL_PWC_DATA,
 		&data_size,
 		lidac_mutual_max, lidac_mutual_min, lidac_mutual_ave);
@@ -2088,7 +2028,7 @@ static int cyapa_gen5_read_self_idac_data(struct cyapa *cyapa,
 
 	data_size = 0;
 	error = cyapa_gen5_read_idac_data(cyapa,
-		GEN5_CMD_RETRIEVE_DATA_STRUCTURE,
+		PIP_RETRIEVE_DATA_STRUCTURE,
 		GEN5_RETRIEVE_SELF_CAP_PWC_DATA,
 		&data_size,
 		lidac_self_max, lidac_self_min, lidac_self_ave);
@@ -2098,7 +2038,7 @@ static int cyapa_gen5_read_self_idac_data(struct cyapa *cyapa,
 	*gidac_self_tx = *lidac_self_min;
 
 	error = cyapa_gen5_read_idac_data(cyapa,
-		GEN5_CMD_RETRIEVE_DATA_STRUCTURE,
+		PIP_RETRIEVE_DATA_STRUCTURE,
 		GEN5_RETRIEVE_SELF_CAP_PWC_DATA,
 		&data_size,
 		lidac_self_max, lidac_self_min, lidac_self_ave);
@@ -2107,27 +2047,27 @@ static int cyapa_gen5_read_self_idac_data(struct cyapa *cyapa,
 
 static ssize_t cyapa_gen5_execute_panel_scan(struct cyapa *cyapa)
 {
-	struct gen5_app_cmd_head *app_cmd_head;
+	struct pip_app_cmd_head *app_cmd_head;
 	u8 cmd[7];
 	u8 resp_data[6];
 	int resp_len;
 	int error;
 
 	memset(cmd, 0, sizeof(cmd));
-	app_cmd_head = (struct gen5_app_cmd_head *)cmd;
-	put_unaligned_le16(GEN5_OUTPUT_REPORT_ADDR, &app_cmd_head->addr);
+	app_cmd_head = (struct pip_app_cmd_head *)cmd;
+	put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &app_cmd_head->addr);
 	put_unaligned_le16(sizeof(cmd) - 2, &app_cmd_head->length);
-	app_cmd_head->report_id = GEN5_APP_CMD_REPORT_ID;
+	app_cmd_head->report_id = PIP_APP_CMD_REPORT_ID;
 	app_cmd_head->cmd_code = GEN5_CMD_EXECUTE_PANEL_SCAN;
 	resp_len = sizeof(resp_data);
 	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
 			cmd, sizeof(cmd),
 			resp_data, &resp_len,
-			500, cyapa_gen5_sort_tsg_pip_app_resp_data, true);
+			500, cyapa_sort_tsg_pip_app_resp_data, true);
 	if (error || resp_len != sizeof(resp_data) ||
 			!VALID_CMD_RESP_HEADER(resp_data,
 				GEN5_CMD_EXECUTE_PANEL_SCAN) ||
-			!GEN5_CMD_COMPLETE_SUCCESS(resp_data[5]))
+			!PIP_CMD_COMPLETE_SUCCESS(resp_data))
 		return error ? error : -EAGAIN;
 
 	return 0;
@@ -2138,7 +2078,7 @@ static int cyapa_gen5_read_panel_scan_raw_data(struct cyapa *cyapa,
 		int *raw_data_max, int *raw_data_min, int *raw_data_ave,
 		u8 *buffer)
 {
-	struct gen5_app_cmd_head *app_cmd_head;
+	struct pip_app_cmd_head *app_cmd_head;
 	struct gen5_retrieve_panel_scan_data *panel_sacn_data;
 	u8 cmd[12];
 	u8 resp_data[256];  /* Max bytes can transfer one time. */
@@ -2166,10 +2106,10 @@ static int cyapa_gen5_read_panel_scan_raw_data(struct cyapa *cyapa,
 	/* Assume max element size is 4 currently. */
 	read_elements = (256 - GEN5_RESP_DATA_STRUCTURE_OFFSET) / 4;
 	read_len = read_elements * 4;
-	app_cmd_head = (struct gen5_app_cmd_head *)cmd;
-	put_unaligned_le16(GEN5_OUTPUT_REPORT_ADDR, &app_cmd_head->addr);
+	app_cmd_head = (struct pip_app_cmd_head *)cmd;
+	put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &app_cmd_head->addr);
 	put_unaligned_le16(sizeof(cmd) - 2, &app_cmd_head->length);
-	app_cmd_head->report_id = GEN5_APP_CMD_REPORT_ID;
+	app_cmd_head->report_id = PIP_APP_CMD_REPORT_ID;
 	app_cmd_head->cmd_code = cmd_code;
 	panel_sacn_data = (struct gen5_retrieve_panel_scan_data *)
 			app_cmd_head->parameter_data;
@@ -2183,10 +2123,10 @@ static int cyapa_gen5_read_panel_scan_raw_data(struct cyapa *cyapa,
 		error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
 			cmd, sizeof(cmd),
 			resp_data, &resp_len,
-			500, cyapa_gen5_sort_tsg_pip_app_resp_data, true);
+			500, cyapa_sort_tsg_pip_app_resp_data, true);
 		if (error || resp_len < GEN5_RESP_DATA_STRUCTURE_OFFSET ||
 				!VALID_CMD_RESP_HEADER(resp_data, cmd_code) ||
-				!GEN5_CMD_COMPLETE_SUCCESS(resp_data[5]) ||
+				!PIP_CMD_COMPLETE_SUCCESS(resp_data) ||
 				resp_data[6] != raw_data_type)
 			return error ? error : -EAGAIN;
 
@@ -2245,11 +2185,11 @@ static ssize_t cyapa_gen5_show_baseline(struct device *dev,
 	int error, resume_error;
 	int size;
 
-	if (cyapa->state != CYAPA_STATE_GEN5_APP)
+	if (!cyapa_is_pip_app_mode(cyapa))
 		return -EBUSY;
 
 	/* 1. Suspend Scanning*/
-	error = cyapa_gen5_suspend_scanning(cyapa);
+	error = cyapa_pip_suspend_scanning(cyapa);
 	if (error)
 		return error;
 
@@ -2270,7 +2210,7 @@ static ssize_t cyapa_gen5_show_baseline(struct device *dev,
 	if (error)
 		goto resume_scanning;
 
-	/* 4. Execuate panel scan. It must be executed before read data. */
+	/* 4. Execute panel scan. It must be executed before read data. */
 	error = cyapa_gen5_execute_panel_scan(cyapa);
 	if (error)
 		goto resume_scanning;
@@ -2343,7 +2283,7 @@ static ssize_t cyapa_gen5_show_baseline(struct device *dev,
 
 resume_scanning:
 	/* 11. Resume Scanning*/
-	resume_error = cyapa_gen5_resume_scanning(cyapa);
+	resume_error = cyapa_pip_resume_scanning(cyapa);
 	if (resume_error || error)
 		return resume_error ? resume_error : error;
 
@@ -2364,7 +2304,7 @@ resume_scanning:
 	return size;
 }
 
-static bool cyapa_gen5_sort_system_info_data(struct cyapa *cyapa,
+bool cyapa_pip_sort_system_info_data(struct cyapa *cyapa,
 		u8 *buf, int len)
 {
 	/* Check the report id and command code */
@@ -2376,20 +2316,17 @@ static bool cyapa_gen5_sort_system_info_data(struct cyapa *cyapa,
 
 static int cyapa_gen5_bl_query_data(struct cyapa *cyapa)
 {
-	u8 bl_query_data_cmd[] = { 0x04, 0x00, 0x0b, 0x00, 0x40, 0x00,
-		0x01, 0x3c, 0x00, 0x00, 0xb0, 0x42, 0x17
-	};
-	u8 resp_data[GEN5_BL_READ_APP_INFO_RESP_LEN];
+	u8 resp_data[PIP_BL_APP_INFO_RESP_LENGTH];
 	int resp_len;
 	int error;
 
-	resp_len = GEN5_BL_READ_APP_INFO_RESP_LEN;
+	resp_len = sizeof(resp_data);
 	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
-			bl_query_data_cmd, sizeof(bl_query_data_cmd),
+			pip_bl_read_app_info, PIP_BL_READ_APP_INFO_CMD_LENGTH,
 			resp_data, &resp_len,
-			500, cyapa_gen5_sort_tsg_pip_bl_resp_data, false);
-	if (error || resp_len != GEN5_BL_READ_APP_INFO_RESP_LEN ||
-		!GEN5_CMD_COMPLETE_SUCCESS(resp_data[5]))
+			500, cyapa_sort_tsg_pip_bl_resp_data, false);
+	if (error || resp_len < PIP_BL_APP_INFO_RESP_LENGTH ||
+		!PIP_CMD_COMPLETE_SUCCESS(resp_data))
 		return error ? error : -EIO;
 
 	memcpy(&cyapa->product_id[0], &resp_data[8], 5);
@@ -2407,25 +2344,22 @@ static int cyapa_gen5_bl_query_data(struct cyapa *cyapa)
 
 static int cyapa_gen5_get_query_data(struct cyapa *cyapa)
 {
-	u8 get_system_information[] = {
-		0x04, 0x00, 0x05, 0x00, 0x2f, 0x00, 0x02
-	};
-	u8 resp_data[71];
+	u8 resp_data[PIP_READ_SYS_INFO_RESP_LENGTH];
 	int resp_len;
 	u16 product_family;
 	int error;
 
 	resp_len = sizeof(resp_data);
 	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
-			get_system_information, sizeof(get_system_information),
+			pip_read_sys_info, PIP_READ_SYS_INFO_CMD_LENGTH,
 			resp_data, &resp_len,
-			2000, cyapa_gen5_sort_system_info_data, false);
+			2000, cyapa_pip_sort_system_info_data, false);
 	if (error || resp_len < sizeof(resp_data))
 		return error ? error : -EIO;
 
 	product_family = get_unaligned_le16(&resp_data[7]);
-	if ((product_family & GEN5_PRODUCT_FAMILY_MASK) !=
-		GEN5_PRODUCT_FAMILY_TRACKPAD)
+	if ((product_family & PIP_PRODUCT_FAMILY_MASK) !=
+		PIP_PRODUCT_FAMILY_TRACKPAD)
 		return -EINVAL;
 
 	cyapa->fw_maj_ver = resp_data[15];
@@ -2472,9 +2406,9 @@ static int cyapa_gen5_do_operational_check(struct cyapa *cyapa)
 
 	switch (cyapa->state) {
 	case CYAPA_STATE_GEN5_BL:
-		error = cyapa_gen5_bl_exit(cyapa);
+		error = cyapa_pip_bl_exit(cyapa);
 		if (error) {
-			/* Rry to update trackpad product information. */
+			/* Try to update trackpad product information. */
 			cyapa_gen5_bl_query_data(cyapa);
 			goto out;
 		}
@@ -2486,7 +2420,7 @@ static int cyapa_gen5_do_operational_check(struct cyapa *cyapa)
 		 * If trackpad device in deep sleep mode,
 		 * the app command will fail.
 		 * So always try to reset trackpad device to full active when
-		 * the device state is requeried.
+		 * the device state is required.
 		 */
 		error = cyapa_gen5_set_power_mode(cyapa,
 				PWR_MODE_FULL_ACTIVE, 0);
@@ -2518,14 +2452,14 @@ out:
  * Return false, do not continue process
  * Return true, continue process.
  */
-static bool cyapa_gen5_irq_cmd_handler(struct cyapa *cyapa)
+bool cyapa_pip_irq_cmd_handler(struct cyapa *cyapa)
 {
-	struct cyapa_gen5_cmd_states *gen5_pip = &cyapa->cmd_states.gen5;
+	struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip;
 	int length;
 
-	if (atomic_read(&gen5_pip->cmd_issued)) {
+	if (atomic_read(&pip->cmd_issued)) {
 		/* Polling command response data. */
-		if (gen5_pip->is_irq_mode == false)
+		if (pip->is_irq_mode == false)
 			return false;
 
 		/*
@@ -2533,59 +2467,64 @@ static bool cyapa_gen5_irq_cmd_handler(struct cyapa *cyapa)
 		 * these output data may caused by user put finger on
 		 * trackpad when host waiting the command response.
 		 */
-		cyapa_i2c_pip_read(cyapa, gen5_pip->irq_cmd_buf,
-			GEN5_RESP_LENGTH_SIZE);
-		length = get_unaligned_le16(gen5_pip->irq_cmd_buf);
-		length = (length <= GEN5_RESP_LENGTH_SIZE) ?
-				GEN5_RESP_LENGTH_SIZE : length;
-		if (length > GEN5_RESP_LENGTH_SIZE)
+		cyapa_i2c_pip_read(cyapa, pip->irq_cmd_buf,
+			PIP_RESP_LENGTH_SIZE);
+		length = get_unaligned_le16(pip->irq_cmd_buf);
+		length = (length <= PIP_RESP_LENGTH_SIZE) ?
+				PIP_RESP_LENGTH_SIZE : length;
+		if (length > PIP_RESP_LENGTH_SIZE)
 			cyapa_i2c_pip_read(cyapa,
-				gen5_pip->irq_cmd_buf, length);
-
-		if (!(gen5_pip->resp_sort_func &&
-			gen5_pip->resp_sort_func(cyapa,
-				gen5_pip->irq_cmd_buf, length))) {
+				pip->irq_cmd_buf, length);
+		if (!(pip->resp_sort_func &&
+			pip->resp_sort_func(cyapa,
+				pip->irq_cmd_buf, length))) {
 			/*
-			 * Work around the Gen5 V1 firmware
-			 * that does not assert interrupt signalling
-			 * that command response is ready if user
-			 * keeps touching the trackpad while command
-			 * is sent to the device.
+			 * Cover the Gen5 V1 firmware issue.
+			 * The issue is no interrupt would be asserted from
+			 * trackpad device to host for the command response
+			 * ready event. Because when there was a finger touch
+			 * on trackpad device, and the firmware output queue
+			 * won't be empty (always with touch report data), so
+			 * the interrupt signal won't be asserted again until
+			 * the output queue was previous emptied.
+			 * This issue would happen in the scenario that
+			 * user always has his/her fingers touched on the
+			 * trackpad device during system booting/rebooting.
 			 */
 			length = 0;
-			if (gen5_pip->resp_len)
-				length = *gen5_pip->resp_len;
+			if (pip->resp_len)
+				length = *pip->resp_len;
 			cyapa_empty_pip_output_data(cyapa,
-					gen5_pip->resp_data,
+					pip->resp_data,
 					&length,
-					gen5_pip->resp_sort_func);
-			if (gen5_pip->resp_len && length != 0) {
-				*gen5_pip->resp_len = length;
-				atomic_dec(&gen5_pip->cmd_issued);
-				complete(&gen5_pip->cmd_ready);
+					pip->resp_sort_func);
+			if (pip->resp_len && length != 0) {
+				*pip->resp_len = length;
+				atomic_dec(&pip->cmd_issued);
+				complete(&pip->cmd_ready);
 			}
 			return false;
 		}
 
-		if (gen5_pip->resp_data && gen5_pip->resp_len) {
-			*gen5_pip->resp_len = (*gen5_pip->resp_len < length) ?
-				*gen5_pip->resp_len : length;
-			memcpy(gen5_pip->resp_data, gen5_pip->irq_cmd_buf,
-				*gen5_pip->resp_len);
+		if (pip->resp_data && pip->resp_len) {
+			*pip->resp_len = (*pip->resp_len < length) ?
+				*pip->resp_len : length;
+			memcpy(pip->resp_data, pip->irq_cmd_buf,
+				*pip->resp_len);
 		}
-		atomic_dec(&gen5_pip->cmd_issued);
-		complete(&gen5_pip->cmd_ready);
+		atomic_dec(&pip->cmd_issued);
+		complete(&pip->cmd_ready);
 		return false;
 	}
 
 	return true;
 }
 
-static void cyapa_gen5_report_buttons(struct cyapa *cyapa,
-		const struct cyapa_gen5_report_data *report_data)
+static void cyapa_pip_report_buttons(struct cyapa *cyapa,
+		const struct cyapa_pip_report_data *report_data)
 {
 	struct input_dev *input = cyapa->input;
-	u8 buttons = report_data->report_head[GEN5_BUTTONS_OFFSET];
+	u8 buttons = report_data->report_head[PIP_BUTTONS_OFFSET];
 
 	buttons = (buttons << CAPABILITY_BTN_SHIFT) & CAPABILITY_BTN_MASK;
 
@@ -2605,12 +2544,12 @@ static void cyapa_gen5_report_buttons(struct cyapa *cyapa,
 	input_sync(input);
 }
 
-static void cyapa_gen5_report_slot_data(struct cyapa *cyapa,
-		const struct cyapa_gen5_touch_record *touch)
+static void cyapa_pip_report_slot_data(struct cyapa *cyapa,
+		const struct cyapa_pip_touch_record *touch)
 {
 	struct input_dev *input = cyapa->input;
-	u8 event_id = GEN5_GET_EVENT_ID(touch->touch_tip_event_id);
-	int slot = GEN5_GET_TOUCH_ID(touch->touch_tip_event_id);
+	u8 event_id = PIP_GET_EVENT_ID(touch->touch_tip_event_id);
+	int slot = PIP_GET_TOUCH_ID(touch->touch_tip_event_id);
 	int x, y;
 
 	if (event_id == RECORD_EVENT_LIFTOFF)
@@ -2621,10 +2560,10 @@ static void cyapa_gen5_report_slot_data(struct cyapa *cyapa,
 	x = (touch->x_hi << 8) | touch->x_lo;
 	if (cyapa->x_origin)
 		x = cyapa->max_abs_x - x;
-	input_report_abs(input, ABS_MT_POSITION_X, x);
 	y = (touch->y_hi << 8) | touch->y_lo;
 	if (cyapa->y_origin)
 		y = cyapa->max_abs_y - y;
+	input_report_abs(input, ABS_MT_POSITION_X, x);
 	input_report_abs(input, ABS_MT_POSITION_Y, y);
 	input_report_abs(input, ABS_MT_PRESSURE,
 		touch->z);
@@ -2642,50 +2581,49 @@ static void cyapa_gen5_report_slot_data(struct cyapa *cyapa,
 		touch->orientation);
 }
 
-static void cyapa_gen5_report_touches(struct cyapa *cyapa,
-		const struct cyapa_gen5_report_data *report_data)
+static void cyapa_pip_report_touches(struct cyapa *cyapa,
+		const struct cyapa_pip_report_data *report_data)
 {
 	struct input_dev *input = cyapa->input;
 	unsigned int touch_num;
 	int i;
 
-	touch_num = report_data->report_head[GEN5_NUMBER_OF_TOUCH_OFFSET] &
-			GEN5_NUMBER_OF_TOUCH_MASK;
+	touch_num = report_data->report_head[PIP_NUMBER_OF_TOUCH_OFFSET] &
+			PIP_NUMBER_OF_TOUCH_MASK;
 
 	for (i = 0; i < touch_num; i++)
-		cyapa_gen5_report_slot_data(cyapa,
+		cyapa_pip_report_slot_data(cyapa,
 			&report_data->touch_records[i]);
 
 	input_mt_sync_frame(input);
 	input_sync(input);
 }
 
-static int cyapa_gen5_irq_handler(struct cyapa *cyapa)
+int cyapa_pip_irq_handler(struct cyapa *cyapa)
 {
 	struct device *dev = &cyapa->client->dev;
-	struct cyapa_gen5_report_data report_data;
-	int ret;
-	u8 report_id;
+	struct cyapa_pip_report_data report_data;
 	unsigned int report_len;
+	u8 report_id;
+	int ret;
 
-	if (cyapa->gen != CYAPA_GEN5 ||
-		cyapa->state != CYAPA_STATE_GEN5_APP) {
+	if (!cyapa_is_pip_app_mode(cyapa)) {
 		dev_err(dev, "invalid device state, gen=%d, state=0x%02x\n",
 			cyapa->gen, cyapa->state);
 		return -EINVAL;
 	}
 
 	ret = cyapa_i2c_pip_read(cyapa, (u8 *)&report_data,
-			GEN5_RESP_LENGTH_SIZE);
-	if (ret != GEN5_RESP_LENGTH_SIZE) {
+			PIP_RESP_LENGTH_SIZE);
+	if (ret != PIP_RESP_LENGTH_SIZE) {
 		dev_err(dev, "failed to read length bytes, (%d)\n", ret);
 		return -EINVAL;
 	}
 
 	report_len = get_unaligned_le16(
-			&report_data.report_head[GEN5_RESP_LENGTH_OFFSET]);
-	if (report_len < GEN5_RESP_LENGTH_SIZE) {
-		/* Invliad length or internal reset happened. */
+			&report_data.report_head[PIP_RESP_LENGTH_OFFSET]);
+	if (report_len < PIP_RESP_LENGTH_SIZE) {
+		/* Invalid length or internal reset happened. */
 		dev_err(dev, "invalid report_len=%d. bytes: %02x %02x\n",
 			report_len, report_data.report_head[0],
 			report_data.report_head[1]);
@@ -2693,7 +2631,7 @@ static int cyapa_gen5_irq_handler(struct cyapa *cyapa)
 	}
 
 	/* Idle, no data for report. */
-	if (report_len == GEN5_RESP_LENGTH_SIZE)
+	if (report_len == PIP_RESP_LENGTH_SIZE)
 		return 0;
 
 	ret = cyapa_i2c_pip_read(cyapa, (u8 *)&report_data, report_len);
@@ -2703,70 +2641,71 @@ static int cyapa_gen5_irq_handler(struct cyapa *cyapa)
 		return -EINVAL;
 	}
 
-	report_id = report_data.report_head[GEN5_RESP_REPORT_ID_OFFSET];
-	if (report_id == GEN5_WAKEUP_EVENT_REPORT_ID &&
-			report_len == GEN5_WAKEUP_EVENT_SIZE) {
+	report_id = report_data.report_head[PIP_RESP_REPORT_ID_OFFSET];
+	if (report_id == PIP_WAKEUP_EVENT_REPORT_ID &&
+			report_len == PIP_WAKEUP_EVENT_SIZE) {
 		/*
 		 * Device wake event from deep sleep mode for touch.
 		 * This interrupt event is used to wake system up.
 		 */
 		return 0;
-	} else if (report_id != GEN5_TOUCH_REPORT_ID &&
-			report_id != GEN5_BTN_REPORT_ID &&
+	} else if (report_id != PIP_TOUCH_REPORT_ID &&
+			report_id != PIP_BTN_REPORT_ID &&
 			report_id != GEN5_OLD_PUSH_BTN_REPORT_ID &&
-			report_id != GEN5_PUSH_BTN_REPORT_ID) {
+			report_id != PIP_PUSH_BTN_REPORT_ID) {
 		/* Running in BL mode or unknown response data read. */
 		dev_err(dev, "invalid report_id=0x%02x\n", report_id);
 		return -EINVAL;
 	}
 
-	if (report_id == GEN5_TOUCH_REPORT_ID &&
-		(report_len < GEN5_TOUCH_REPORT_HEAD_SIZE ||
-			report_len > GEN5_TOUCH_REPORT_MAX_SIZE)) {
+	if (report_id == PIP_TOUCH_REPORT_ID &&
+		(report_len < PIP_TOUCH_REPORT_HEAD_SIZE ||
+			report_len > PIP_TOUCH_REPORT_MAX_SIZE)) {
 		/* Invalid report data length for finger packet. */
 		dev_err(dev, "invalid touch packet length=%d\n", report_len);
 		return 0;
 	}
 
-	if ((report_id == GEN5_BTN_REPORT_ID ||
+	if ((report_id == PIP_BTN_REPORT_ID ||
 			report_id == GEN5_OLD_PUSH_BTN_REPORT_ID ||
-			report_id == GEN5_PUSH_BTN_REPORT_ID) &&
-		(report_len < GEN5_BTN_REPORT_HEAD_SIZE ||
-			report_len > GEN5_BTN_REPORT_MAX_SIZE)) {
+			report_id == PIP_PUSH_BTN_REPORT_ID) &&
+		(report_len < PIP_BTN_REPORT_HEAD_SIZE ||
+			report_len > PIP_BTN_REPORT_MAX_SIZE)) {
 		/* Invalid report data length of button packet. */
 		dev_err(dev, "invalid button packet length=%d\n", report_len);
 		return 0;
 	}
 
-	if (report_id == GEN5_TOUCH_REPORT_ID)
-		cyapa_gen5_report_touches(cyapa, &report_data);
+	if (report_id == PIP_TOUCH_REPORT_ID)
+		cyapa_pip_report_touches(cyapa, &report_data);
 	else
-		cyapa_gen5_report_buttons(cyapa, &report_data);
+		cyapa_pip_report_buttons(cyapa, &report_data);
 
 	return 0;
 }
 
-static int cyapa_gen5_bl_activate(struct cyapa *cyapa) { return 0; }
-static int cyapa_gen5_bl_deactivate(struct cyapa *cyapa) { return 0; }
+int cyapa_pip_bl_activate(struct cyapa *cyapa) { return 0; }
+int cyapa_pip_bl_deactivate(struct cyapa *cyapa) { return 0; }
+
 
 const struct cyapa_dev_ops cyapa_gen5_ops = {
-	.check_fw = cyapa_gen5_check_fw,
-	.bl_enter = cyapa_gen5_bl_enter,
-	.bl_initiate = cyapa_gen5_bl_initiate,
-	.update_fw = cyapa_gen5_do_fw_update,
-	.bl_activate = cyapa_gen5_bl_activate,
-	.bl_deactivate = cyapa_gen5_bl_deactivate,
+	.check_fw = cyapa_pip_check_fw,
+	.bl_enter = cyapa_pip_bl_enter,
+	.bl_initiate = cyapa_pip_bl_initiate,
+	.update_fw = cyapa_pip_do_fw_update,
+	.bl_activate = cyapa_pip_bl_activate,
+	.bl_deactivate = cyapa_pip_bl_deactivate,
 
 	.show_baseline = cyapa_gen5_show_baseline,
-	.calibrate_store = cyapa_gen5_do_calibrate,
+	.calibrate_store = cyapa_pip_do_calibrate,
 
-	.initialize = cyapa_gen5_initialize,
+	.initialize = cyapa_pip_cmd_state_initialize,
 
 	.state_parse = cyapa_gen5_state_parse,
 	.operational_check = cyapa_gen5_do_operational_check,
 
-	.irq_handler = cyapa_gen5_irq_handler,
-	.irq_cmd_handler = cyapa_gen5_irq_cmd_handler,
+	.irq_handler = cyapa_pip_irq_handler,
+	.irq_cmd_handler = cyapa_pip_irq_cmd_handler,
 	.sort_empty_output_data = cyapa_empty_pip_output_data,
 	.set_power_mode = cyapa_gen5_set_power_mode,
 };
-- 
cgit v1.2.3


From c2c06c41f700b544c9331caf71c67edb5d131257 Mon Sep 17 00:00:00 2001
From: Dudley Du <dudl@cypress.com>
Date: Mon, 20 Jul 2015 16:53:30 -0700
Subject: Input: cyapa - add gen6 device module support

Based on the cyapa core, add support for basic functionality of the gen6
trackpad devices. The driver can automatically determine what protocol
(gen3, gen5, or gen6) should be used with the attached trackpad device.

Signed-off-by: Dudley Du <dudl@cypress.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/mouse/Makefile     |   2 +-
 drivers/input/mouse/cyapa.c      |  22 ++
 drivers/input/mouse/cyapa.h      |  15 +
 drivers/input/mouse/cyapa_gen5.c |  69 +++-
 drivers/input/mouse/cyapa_gen6.c | 730 +++++++++++++++++++++++++++++++++++++++
 5 files changed, 834 insertions(+), 4 deletions(-)
 create mode 100644 drivers/input/mouse/cyapa_gen6.c

diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile
index 793300bfbddd..ee6a6e9563d4 100644
--- a/drivers/input/mouse/Makefile
+++ b/drivers/input/mouse/Makefile
@@ -24,7 +24,7 @@ obj-$(CONFIG_MOUSE_SYNAPTICS_I2C)	+= synaptics_i2c.o
 obj-$(CONFIG_MOUSE_SYNAPTICS_USB)	+= synaptics_usb.o
 obj-$(CONFIG_MOUSE_VSXXXAA)		+= vsxxxaa.o
 
-cyapatp-objs := cyapa.o cyapa_gen3.o cyapa_gen5.o
+cyapatp-objs := cyapa.o cyapa_gen3.o cyapa_gen5.o cyapa_gen6.o
 psmouse-objs := psmouse-base.o synaptics.o focaltech.o
 
 psmouse-$(CONFIG_MOUSE_PS2_ALPS)	+= alps.o
diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c
index 4c4429598adb..6952ed1c92c7 100644
--- a/drivers/input/mouse/cyapa.c
+++ b/drivers/input/mouse/cyapa.c
@@ -41,6 +41,9 @@ static int cyapa_reinitialize(struct cyapa *cyapa);
 
 bool cyapa_is_pip_bl_mode(struct cyapa *cyapa)
 {
+	if (cyapa->gen == CYAPA_GEN6 && cyapa->state == CYAPA_STATE_GEN6_BL)
+		return true;
+
 	if (cyapa->gen == CYAPA_GEN5 && cyapa->state == CYAPA_STATE_GEN5_BL)
 		return true;
 
@@ -49,6 +52,9 @@ bool cyapa_is_pip_bl_mode(struct cyapa *cyapa)
 
 bool cyapa_is_pip_app_mode(struct cyapa *cyapa)
 {
+	if (cyapa->gen == CYAPA_GEN6 && cyapa->state == CYAPA_STATE_GEN6_APP)
+		return true;
+
 	if (cyapa->gen == CYAPA_GEN5 && cyapa->state == CYAPA_STATE_GEN5_APP)
 		return true;
 
@@ -204,6 +210,15 @@ static int cyapa_get_state(struct cyapa *cyapa)
 			if (!error)
 				goto out_detected;
 		}
+		if (cyapa->gen == CYAPA_GEN_UNKNOWN ||
+				cyapa->gen == CYAPA_GEN6 ||
+				cyapa->gen == CYAPA_GEN5) {
+			error = cyapa_pip_state_parse(cyapa,
+					status, BL_STATUS_SIZE);
+			if (!error)
+				goto out_detected;
+		}
+		/* For old Gen5 trackpads detecting. */
 		if ((cyapa->gen == CYAPA_GEN_UNKNOWN ||
 				cyapa->gen == CYAPA_GEN5) &&
 			!smbus && even_addr) {
@@ -300,6 +315,9 @@ static int cyapa_check_is_operational(struct cyapa *cyapa)
 		return error;
 
 	switch (cyapa->gen) {
+	case CYAPA_GEN6:
+		cyapa->ops = &cyapa_gen6_ops;
+		break;
 	case CYAPA_GEN5:
 		cyapa->ops = &cyapa_gen5_ops;
 		break;
@@ -579,6 +597,8 @@ static int cyapa_initialize(struct cyapa *cyapa)
 	error = cyapa_gen3_ops.initialize(cyapa);
 	if (!error)
 		error = cyapa_gen5_ops.initialize(cyapa);
+	if (!error)
+		error = cyapa_gen6_ops.initialize(cyapa);
 	if (error)
 		return error;
 
@@ -1136,9 +1156,11 @@ static char *cyapa_state_to_string(struct cyapa *cyapa)
 	case CYAPA_STATE_BL_ACTIVE:
 		return "bootloader active";
 	case CYAPA_STATE_GEN5_BL:
+	case CYAPA_STATE_GEN6_BL:
 		return "bootloader";
 	case CYAPA_STATE_OP:
 	case CYAPA_STATE_GEN5_APP:
+	case CYAPA_STATE_GEN6_APP:
 		return "operational";  /* Normal valid state. */
 	default:
 		return "invalid mode";
diff --git a/drivers/input/mouse/cyapa.h b/drivers/input/mouse/cyapa.h
index d019d1d2d1e4..3a211c0769e9 100644
--- a/drivers/input/mouse/cyapa.h
+++ b/drivers/input/mouse/cyapa.h
@@ -19,6 +19,7 @@
 #define CYAPA_GEN_UNKNOWN   0x00   /* unknown protocol. */
 #define CYAPA_GEN3   0x03   /* support MT-protocol B with tracking ID. */
 #define CYAPA_GEN5   0x05   /* support TrueTouch GEN5 trackpad device. */
+#define CYAPA_GEN6   0x06   /* support TrueTouch GEN6 trackpad device. */
 
 #define CYAPA_NAME   "Cypress APA Trackpad (cyapa)"
 
@@ -198,6 +199,9 @@
 #define PIP_BL_APP_INFO_RESP_LENGTH	30
 #define PIP_BL_GET_INFO_RESP_LENGTH	19
 
+#define PIP_BL_PLATFORM_VER_SHIFT	4
+#define PIP_BL_PLATFORM_VER_MASK	0x0f
+
 #define PIP_PRODUCT_FAMILY_MASK		0xf000
 #define PIP_PRODUCT_FAMILY_TRACKPAD	0x1000
 
@@ -299,6 +303,14 @@ enum cyapa_state {
 	CYAPA_STATE_OP,
 	CYAPA_STATE_GEN5_BL,
 	CYAPA_STATE_GEN5_APP,
+	CYAPA_STATE_GEN6_BL,
+	CYAPA_STATE_GEN6_APP,
+};
+
+struct gen6_interval_setting {
+	u16 active_interval;
+	u16 lp1_interval;
+	u16 lp2_interval;
 };
 
 /* The main device structure */
@@ -320,9 +332,11 @@ struct cyapa {
 	u16 runtime_suspend_sleep_time;
 	u8 dev_pwr_mode;
 	u16 dev_sleep_time;
+	struct gen6_interval_setting gen6_interval_setting;
 
 	/* Read from query data region. */
 	char product_id[16];
+	u8 platform_ver;  /* Platform version. */
 	u8 fw_maj_ver;  /* Firmware major version. */
 	u8 fw_min_ver;  /* Firmware minor version. */
 	u8 btn_capability;
@@ -411,5 +425,6 @@ extern u8 pip_bl_read_app_info[];
 extern const char product_id[];
 extern const struct cyapa_dev_ops cyapa_gen3_ops;
 extern const struct cyapa_dev_ops cyapa_gen5_ops;
+extern const struct cyapa_dev_ops cyapa_gen6_ops;
 
 #endif
diff --git a/drivers/input/mouse/cyapa_gen5.c b/drivers/input/mouse/cyapa_gen5.c
index 9d75c6f9f307..4e19dce1dd62 100644
--- a/drivers/input/mouse/cyapa_gen5.c
+++ b/drivers/input/mouse/cyapa_gen5.c
@@ -133,7 +133,9 @@ struct cyapa_pip_touch_record {
 	 * Bit 7 - 3: reserved
 	 * Bit 2 - 0: touch type;
 	 *            0 : standard finger;
-	 *            1 - 15 : reserved.
+	 *            1 : proximity (Start supported in Gen5 TP).
+	 *            2 : finger hover (defined, but not used yet.)
+	 *            3 - 15 : reserved.
 	 */
 	u8 touch_type;
 
@@ -167,6 +169,9 @@ struct cyapa_pip_touch_record {
 	 * The meaning of this value is different when touch_type is different.
 	 * For standard finger type:
 	 *	Touch intensity in counts, pressure value.
+	 * For proximity type (Start supported in Gen5 TP):
+	 *	The distance, in surface units, between the contact and
+	 *	the surface.
 	 **/
 	u8 z;
 
@@ -218,6 +223,12 @@ struct cyapa_tsg_bin_image_head {
 	u8 fw_major_version;
 	u8 fw_minor_version;
 	u8 fw_revision_control_number[8];
+	u8 silicon_id_hi;
+	u8 silicon_id_lo;
+	u8 chip_revision;
+	u8 family_id;
+	u8 bl_ver_maj;
+	u8 bl_ver_min;
 } __packed;
 
 struct cyapa_tsg_bin_image_data_record {
@@ -1134,6 +1145,39 @@ int cyapa_pip_bl_enter(struct cyapa *cyapa)
 	cyapa->operational = false;
 	if (cyapa->gen == CYAPA_GEN5)
 		cyapa->state = CYAPA_STATE_GEN5_BL;
+	else if (cyapa->gen == CYAPA_GEN6)
+		cyapa->state = CYAPA_STATE_GEN6_BL;
+	return 0;
+}
+
+static int cyapa_pip_fw_head_check(struct cyapa *cyapa,
+		struct cyapa_tsg_bin_image_head *image_head)
+{
+	if (image_head->head_size != 0x0C && image_head->head_size != 0x12)
+		return -EINVAL;
+
+	switch (cyapa->gen) {
+	case CYAPA_GEN6:
+		if (image_head->family_id != 0x9B ||
+		    image_head->silicon_id_hi != 0x0B)
+			return -EINVAL;
+		break;
+	case CYAPA_GEN5:
+		/* Gen5 without proximity support. */
+		if (cyapa->platform_ver < 2) {
+			if (image_head->head_size == 0x0C)
+				break;
+			return -EINVAL;
+		}
+
+		if (image_head->family_id != 0x91 ||
+		    image_head->silicon_id_hi != 0x02)
+			return -EINVAL;
+		break;
+	default:
+		return -EINVAL;
+	}
+
 	return 0;
 }
 
@@ -1150,6 +1194,14 @@ int cyapa_pip_check_fw(struct cyapa *cyapa, const struct firmware *fw)
 	u16 app_integrity_crc;
 	int i;
 
+	/* Verify the firmware image not miss-used for Gen5 and Gen6. */
+	if (cyapa_pip_fw_head_check(cyapa,
+		(struct cyapa_tsg_bin_image_head *)fw->data)) {
+		dev_err(dev, "%s: firmware image not match TP device.\n",
+			     __func__);
+		return -EINVAL;
+	}
+
 	image_records =
 		cyapa_get_image_record_data_num(fw, &flash_records_count);
 
@@ -2339,6 +2391,9 @@ static int cyapa_gen5_bl_query_data(struct cyapa *cyapa)
 	cyapa->fw_maj_ver = resp_data[22];
 	cyapa->fw_min_ver = resp_data[23];
 
+	cyapa->platform_ver = (resp_data[26] >> PIP_BL_PLATFORM_VER_SHIFT) &
+			      PIP_BL_PLATFORM_VER_MASK;
+
 	return 0;
 }
 
@@ -2362,8 +2417,16 @@ static int cyapa_gen5_get_query_data(struct cyapa *cyapa)
 		PIP_PRODUCT_FAMILY_TRACKPAD)
 		return -EINVAL;
 
-	cyapa->fw_maj_ver = resp_data[15];
-	cyapa->fw_min_ver = resp_data[16];
+	cyapa->platform_ver = (resp_data[49] >> PIP_BL_PLATFORM_VER_SHIFT) &
+			      PIP_BL_PLATFORM_VER_MASK;
+	if (cyapa->gen == CYAPA_GEN5 && cyapa->platform_ver < 2) {
+		/* Gen5 firmware that does not support proximity. */
+		cyapa->fw_maj_ver = resp_data[15];
+		cyapa->fw_min_ver = resp_data[16];
+	} else {
+		cyapa->fw_maj_ver = resp_data[9];
+		cyapa->fw_min_ver = resp_data[10];
+	}
 
 	cyapa->electrodes_x = resp_data[52];
 	cyapa->electrodes_y = resp_data[53];
diff --git a/drivers/input/mouse/cyapa_gen6.c b/drivers/input/mouse/cyapa_gen6.c
new file mode 100644
index 000000000000..8a6aa73b5373
--- /dev/null
+++ b/drivers/input/mouse/cyapa_gen6.c
@@ -0,0 +1,730 @@
+/*
+ * Cypress APA trackpad with I2C interface
+ *
+ * Author: Dudley Du <dudl@cypress.com>
+ *
+ * Copyright (C) 2015 Cypress Semiconductor, Inc.
+ *
+ * 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 archive for
+ * more details.
+ */
+
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/input/mt.h>
+#include <linux/mutex.h>
+#include <linux/completion.h>
+#include <linux/slab.h>
+#include <asm/unaligned.h>
+#include <linux/crc-itu-t.h>
+#include "cyapa.h"
+
+
+#define GEN6_ENABLE_CMD_IRQ	0x41
+#define GEN6_DISABLE_CMD_IRQ	0x42
+#define GEN6_ENABLE_DEV_IRQ	0x43
+#define GEN6_DISABLE_DEV_IRQ	0x44
+
+#define GEN6_POWER_MODE_ACTIVE		0x01
+#define GEN6_POWER_MODE_LP_MODE1	0x02
+#define GEN6_POWER_MODE_LP_MODE2	0x03
+#define GEN6_POWER_MODE_BTN_ONLY	0x04
+
+#define GEN6_SET_POWER_MODE_INTERVAL	0x47
+#define GEN6_GET_POWER_MODE_INTERVAL	0x48
+
+#define GEN6_MAX_RX_NUM 14
+#define GEN6_RETRIEVE_DATA_ID_RX_ATTENURATOR_IDAC	0x00
+#define GEN6_RETRIEVE_DATA_ID_ATTENURATOR_TRIM		0x12
+
+
+struct pip_app_cmd_head {
+	__le16 addr;
+	__le16 length;
+	u8 report_id;
+	u8 resv;  /* Reserved, must be 0 */
+	u8 cmd_code;  /* bit7: resv, set to 0; bit6~0: command code.*/
+} __packed;
+
+struct pip_app_resp_head {
+	__le16 length;
+	u8 report_id;
+	u8 resv;  /* Reserved, must be 0 */
+	u8 cmd_code;  /* bit7: TGL; bit6~0: command code.*/
+	/*
+	 * The value of data_status can be the first byte of data or
+	 * the command status or the unsupported command code depending on the
+	 * requested command code.
+	*/
+	u8 data_status;
+} __packed;
+
+struct pip_fixed_info {
+	u8 silicon_id_high;
+	u8 silicon_id_low;
+	u8 family_id;
+};
+
+static u8 pip_get_bl_info[] = {
+	0x04, 0x00, 0x0B, 0x00, 0x40, 0x00, 0x01, 0x38,
+	0x00, 0x00, 0x70, 0x9E, 0x17
+};
+
+static bool cyapa_sort_pip_hid_descriptor_data(struct cyapa *cyapa,
+		u8 *buf, int len)
+{
+	if (len != PIP_HID_DESCRIPTOR_SIZE)
+		return false;
+
+	if (buf[PIP_RESP_REPORT_ID_OFFSET] == PIP_HID_APP_REPORT_ID ||
+		buf[PIP_RESP_REPORT_ID_OFFSET] == PIP_HID_BL_REPORT_ID)
+		return true;
+
+	return false;
+}
+
+static int cyapa_get_pip_fixed_info(struct cyapa *cyapa,
+		struct pip_fixed_info *pip_info, bool is_bootloader)
+{
+	u8 resp_data[PIP_READ_SYS_INFO_RESP_LENGTH];
+	int resp_len;
+	u16 product_family;
+	int error;
+
+	if (is_bootloader) {
+		/* Read Bootloader Information to determine Gen5 or Gen6. */
+		resp_len = sizeof(resp_data);
+		error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+				pip_get_bl_info, sizeof(pip_get_bl_info),
+				resp_data, &resp_len,
+				2000, cyapa_sort_tsg_pip_bl_resp_data,
+				false);
+		if (error || resp_len < PIP_BL_GET_INFO_RESP_LENGTH)
+			return error ? error : -EIO;
+
+		pip_info->family_id = resp_data[8];
+		pip_info->silicon_id_low = resp_data[10];
+		pip_info->silicon_id_high = resp_data[11];
+
+		return 0;
+	}
+
+	/* Get App System Information to determine Gen5 or Gen6. */
+	resp_len = sizeof(resp_data);
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+			pip_read_sys_info, PIP_READ_SYS_INFO_CMD_LENGTH,
+			resp_data, &resp_len,
+			2000, cyapa_pip_sort_system_info_data, false);
+	if (error || resp_len < PIP_READ_SYS_INFO_RESP_LENGTH)
+		return error ? error : -EIO;
+
+	product_family = get_unaligned_le16(&resp_data[7]);
+	if ((product_family & PIP_PRODUCT_FAMILY_MASK) !=
+		PIP_PRODUCT_FAMILY_TRACKPAD)
+		return -EINVAL;
+
+	pip_info->family_id = resp_data[19];
+	pip_info->silicon_id_low = resp_data[21];
+	pip_info->silicon_id_high = resp_data[22];
+
+	return 0;
+
+}
+
+int cyapa_pip_state_parse(struct cyapa *cyapa, u8 *reg_data, int len)
+{
+	u8 cmd[] = { 0x01, 0x00};
+	struct pip_fixed_info pip_info;
+	u8 resp_data[PIP_HID_DESCRIPTOR_SIZE];
+	int resp_len;
+	bool is_bootloader;
+	int error;
+
+	cyapa->state = CYAPA_STATE_NO_DEVICE;
+
+	/* Try to wake from it deep sleep state if it is. */
+	cyapa_pip_deep_sleep(cyapa, PIP_DEEP_SLEEP_STATE_ON);
+
+	/* Empty the buffer queue to get fresh data with later commands. */
+	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
+
+	/*
+	 * Read description info from trackpad device to determine running in
+	 * APP mode or Bootloader mode.
+	 */
+	resp_len = PIP_HID_DESCRIPTOR_SIZE;
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+			cmd, sizeof(cmd),
+			resp_data, &resp_len,
+			300,
+			cyapa_sort_pip_hid_descriptor_data,
+			false);
+	if (error)
+		return error;
+
+	if (resp_data[PIP_RESP_REPORT_ID_OFFSET] == PIP_HID_BL_REPORT_ID)
+		is_bootloader = true;
+	else if (resp_data[PIP_RESP_REPORT_ID_OFFSET] == PIP_HID_APP_REPORT_ID)
+		is_bootloader = false;
+	else
+		return -EAGAIN;
+
+	/* Get PIP fixed information to determine Gen5 or Gen6. */
+	memset(&pip_info, 0, sizeof(struct pip_fixed_info));
+	error = cyapa_get_pip_fixed_info(cyapa, &pip_info, is_bootloader);
+	if (error)
+		return error;
+
+	if (pip_info.family_id == 0x9B && pip_info.silicon_id_high == 0x0B) {
+		cyapa->gen = CYAPA_GEN6;
+		cyapa->state = is_bootloader ? CYAPA_STATE_GEN6_BL
+					     : CYAPA_STATE_GEN6_APP;
+	} else if (pip_info.family_id == 0x91 &&
+		   pip_info.silicon_id_high == 0x02) {
+		cyapa->gen = CYAPA_GEN5;
+		cyapa->state = is_bootloader ? CYAPA_STATE_GEN5_BL
+					     : CYAPA_STATE_GEN5_APP;
+	}
+
+	return 0;
+}
+
+static int cyapa_gen6_read_sys_info(struct cyapa *cyapa)
+{
+	u8 resp_data[PIP_READ_SYS_INFO_RESP_LENGTH];
+	int resp_len;
+	u16 product_family;
+	u8 rotat_align;
+	int error;
+
+	/* Get App System Information to determine Gen5 or Gen6. */
+	resp_len = sizeof(resp_data);
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+			pip_read_sys_info, PIP_READ_SYS_INFO_CMD_LENGTH,
+			resp_data, &resp_len,
+			2000, cyapa_pip_sort_system_info_data, false);
+	if (error || resp_len < sizeof(resp_data))
+		return error ? error : -EIO;
+
+	product_family = get_unaligned_le16(&resp_data[7]);
+	if ((product_family & PIP_PRODUCT_FAMILY_MASK) !=
+		PIP_PRODUCT_FAMILY_TRACKPAD)
+		return -EINVAL;
+
+	cyapa->platform_ver = (resp_data[67] >> PIP_BL_PLATFORM_VER_SHIFT) &
+			      PIP_BL_PLATFORM_VER_MASK;
+	cyapa->fw_maj_ver = resp_data[9];
+	cyapa->fw_min_ver = resp_data[10];
+
+	cyapa->electrodes_x = resp_data[33];
+	cyapa->electrodes_y = resp_data[34];
+
+	cyapa->physical_size_x =  get_unaligned_le16(&resp_data[35]) / 100;
+	cyapa->physical_size_y = get_unaligned_le16(&resp_data[37]) / 100;
+
+	cyapa->max_abs_x = get_unaligned_le16(&resp_data[39]);
+	cyapa->max_abs_y = get_unaligned_le16(&resp_data[41]);
+
+	cyapa->max_z = get_unaligned_le16(&resp_data[43]);
+
+	cyapa->x_origin = resp_data[45] & 0x01;
+	cyapa->y_origin = resp_data[46] & 0x01;
+
+	cyapa->btn_capability = (resp_data[70] << 3) & CAPABILITY_BTN_MASK;
+
+	memcpy(&cyapa->product_id[0], &resp_data[51], 5);
+	cyapa->product_id[5] = '-';
+	memcpy(&cyapa->product_id[6], &resp_data[56], 6);
+	cyapa->product_id[12] = '-';
+	memcpy(&cyapa->product_id[13], &resp_data[62], 2);
+	cyapa->product_id[15] = '\0';
+
+	rotat_align = resp_data[68];
+	if (rotat_align) {
+		cyapa->electrodes_rx = cyapa->electrodes_y;
+		cyapa->electrodes_rx = cyapa->electrodes_y;
+	} else {
+		cyapa->electrodes_rx = cyapa->electrodes_x;
+		cyapa->electrodes_rx = cyapa->electrodes_y;
+	}
+	cyapa->aligned_electrodes_rx = (cyapa->electrodes_rx + 3) & ~3u;
+
+	if (!cyapa->electrodes_x || !cyapa->electrodes_y ||
+		!cyapa->physical_size_x || !cyapa->physical_size_y ||
+		!cyapa->max_abs_x || !cyapa->max_abs_y || !cyapa->max_z)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int cyapa_gen6_bl_read_app_info(struct cyapa *cyapa)
+{
+	u8 resp_data[PIP_BL_APP_INFO_RESP_LENGTH];
+	int resp_len;
+	int error;
+
+	resp_len = sizeof(resp_data);
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+			pip_bl_read_app_info, PIP_BL_READ_APP_INFO_CMD_LENGTH,
+			resp_data, &resp_len,
+			500, cyapa_sort_tsg_pip_bl_resp_data, false);
+	if (error || resp_len < PIP_BL_APP_INFO_RESP_LENGTH ||
+		!PIP_CMD_COMPLETE_SUCCESS(resp_data))
+		return error ? error : -EIO;
+
+	cyapa->fw_maj_ver = resp_data[8];
+	cyapa->fw_min_ver = resp_data[9];
+
+	cyapa->platform_ver = (resp_data[12] >> PIP_BL_PLATFORM_VER_SHIFT) &
+			      PIP_BL_PLATFORM_VER_MASK;
+
+	memcpy(&cyapa->product_id[0], &resp_data[13], 5);
+	cyapa->product_id[5] = '-';
+	memcpy(&cyapa->product_id[6], &resp_data[18], 6);
+	cyapa->product_id[12] = '-';
+	memcpy(&cyapa->product_id[13], &resp_data[24], 2);
+	cyapa->product_id[15] = '\0';
+
+	return 0;
+
+}
+
+static int cyapa_gen6_config_dev_irq(struct cyapa *cyapa, u8 cmd_code)
+{
+	u8 cmd[] = { 0x04, 0x00, 0x05, 0x00, 0x2f, 0x00, cmd_code };
+	u8 resp_data[6];
+	int resp_len;
+	int error;
+
+	resp_len = sizeof(resp_data);
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd),
+			resp_data, &resp_len,
+			500, cyapa_sort_tsg_pip_app_resp_data, false);
+	if (error || !VALID_CMD_RESP_HEADER(resp_data, cmd_code) ||
+			!PIP_CMD_COMPLETE_SUCCESS(resp_data)
+			)
+		return error < 0 ? error : -EINVAL;
+
+	return 0;
+}
+
+static int cyapa_gen6_change_power_state(struct cyapa *cyapa, u8 power_mode)
+{
+	u8 cmd[] = { 0x04, 0x00, 0x06, 0x00, 0x2f, 0x00, 0x46, power_mode };
+	u8 resp_data[6];
+	int resp_len;
+	int error;
+
+	resp_len = sizeof(resp_data);
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd),
+			resp_data, &resp_len,
+			500, cyapa_sort_tsg_pip_app_resp_data, false);
+	if (error || !VALID_CMD_RESP_HEADER(resp_data, 0x46))
+		return error < 0 ? error : -EINVAL;
+
+	/* New power state applied in device not match the set power state. */
+	if (resp_data[5] != power_mode)
+		return -EAGAIN;
+
+	return 0;
+}
+
+static int cyapa_gen6_set_interval_setting(struct cyapa *cyapa,
+		struct gen6_interval_setting *interval_setting)
+{
+	struct gen6_set_interval_cmd {
+		__le16 addr;
+		__le16 length;
+		u8 report_id;
+		u8 rsvd;  /* Reserved, must be 0 */
+		u8 cmd_code;
+		__le16 active_interval;
+		__le16 lp1_interval;
+		__le16 lp2_interval;
+	} __packed set_interval_cmd;
+	u8 resp_data[11];
+	int resp_len;
+	int error;
+
+	memset(&set_interval_cmd, 0, sizeof(set_interval_cmd));
+	put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &set_interval_cmd.addr);
+	put_unaligned_le16(sizeof(set_interval_cmd) - 2,
+			   &set_interval_cmd.length);
+	set_interval_cmd.report_id = PIP_APP_CMD_REPORT_ID;
+	set_interval_cmd.cmd_code = GEN6_SET_POWER_MODE_INTERVAL;
+	put_unaligned_le16(interval_setting->active_interval,
+			   &set_interval_cmd.active_interval);
+	put_unaligned_le16(interval_setting->lp1_interval,
+			   &set_interval_cmd.lp1_interval);
+	put_unaligned_le16(interval_setting->lp2_interval,
+			   &set_interval_cmd.lp2_interval);
+
+	resp_len = sizeof(resp_data);
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+			(u8 *)&set_interval_cmd, sizeof(set_interval_cmd),
+			resp_data, &resp_len,
+			500, cyapa_sort_tsg_pip_app_resp_data, false);
+	if (error ||
+		!VALID_CMD_RESP_HEADER(resp_data, GEN6_SET_POWER_MODE_INTERVAL))
+		return error < 0 ? error : -EINVAL;
+
+	/* Get the real set intervals from response. */
+	interval_setting->active_interval = get_unaligned_le16(&resp_data[5]);
+	interval_setting->lp1_interval = get_unaligned_le16(&resp_data[7]);
+	interval_setting->lp2_interval = get_unaligned_le16(&resp_data[9]);
+
+	return 0;
+}
+
+static int cyapa_gen6_get_interval_setting(struct cyapa *cyapa,
+		struct gen6_interval_setting *interval_setting)
+{
+	u8 cmd[] = { 0x04, 0x00, 0x05, 0x00, 0x2f, 0x00,
+		     GEN6_GET_POWER_MODE_INTERVAL };
+	u8 resp_data[11];
+	int resp_len;
+	int error;
+
+	resp_len = sizeof(resp_data);
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd),
+			resp_data, &resp_len,
+			500, cyapa_sort_tsg_pip_app_resp_data, false);
+	if (error ||
+		!VALID_CMD_RESP_HEADER(resp_data, GEN6_GET_POWER_MODE_INTERVAL))
+		return error < 0 ? error : -EINVAL;
+
+	interval_setting->active_interval = get_unaligned_le16(&resp_data[5]);
+	interval_setting->lp1_interval = get_unaligned_le16(&resp_data[7]);
+	interval_setting->lp2_interval = get_unaligned_le16(&resp_data[9]);
+
+	return 0;
+}
+
+static int cyapa_gen6_deep_sleep(struct cyapa *cyapa, u8 state)
+{
+	u8 ping[] = { 0x04, 0x00, 0x05, 0x00, 0x2f, 0x00, 0x00 };
+
+	if (state == PIP_DEEP_SLEEP_STATE_ON)
+		/*
+		 * Send ping command to notify device prepare for wake up
+		 * when it's in deep sleep mode. At this time, device will
+		 * response nothing except an I2C NAK.
+		 */
+		cyapa_i2c_pip_write(cyapa, ping, sizeof(ping));
+
+	return cyapa_pip_deep_sleep(cyapa, state);
+}
+
+static int cyapa_gen6_set_power_mode(struct cyapa *cyapa,
+		u8 power_mode, u16 sleep_time)
+{
+	struct device *dev = &cyapa->client->dev;
+	struct gen6_interval_setting *interval_setting =
+			&cyapa->gen6_interval_setting;
+	u8 lp_mode;
+	int error;
+
+	if (cyapa->state != CYAPA_STATE_GEN6_APP)
+		return 0;
+
+	if (PIP_DEV_GET_PWR_STATE(cyapa) == UNINIT_PWR_MODE) {
+		/*
+		 * Assume TP in deep sleep mode when driver is loaded,
+		 * avoid driver unload and reload command IO issue caused by TP
+		 * has been set into deep sleep mode when unloading.
+		 */
+		PIP_DEV_SET_PWR_STATE(cyapa, PWR_MODE_OFF);
+	}
+
+	if (PIP_DEV_UNINIT_SLEEP_TIME(cyapa) &&
+		PIP_DEV_GET_PWR_STATE(cyapa) != PWR_MODE_OFF)
+		PIP_DEV_SET_SLEEP_TIME(cyapa, UNINIT_SLEEP_TIME);
+
+	if (PIP_DEV_GET_PWR_STATE(cyapa) == power_mode) {
+		if (power_mode == PWR_MODE_OFF ||
+			power_mode == PWR_MODE_FULL_ACTIVE ||
+			power_mode == PWR_MODE_BTN_ONLY ||
+			PIP_DEV_GET_SLEEP_TIME(cyapa) == sleep_time) {
+			/* Has in correct power mode state, early return. */
+			return 0;
+		}
+	}
+
+	if (power_mode == PWR_MODE_OFF) {
+		cyapa_gen6_config_dev_irq(cyapa, GEN6_DISABLE_CMD_IRQ);
+
+		error = cyapa_gen6_deep_sleep(cyapa, PIP_DEEP_SLEEP_STATE_OFF);
+		if (error) {
+			dev_err(dev, "enter deep sleep fail: %d\n", error);
+			return error;
+		}
+
+		PIP_DEV_SET_PWR_STATE(cyapa, PWR_MODE_OFF);
+		return 0;
+	}
+
+	/*
+	 * When trackpad in power off mode, it cannot change to other power
+	 * state directly, must be wake up from sleep firstly, then
+	 * continue to do next power sate change.
+	 */
+	if (PIP_DEV_GET_PWR_STATE(cyapa) == PWR_MODE_OFF) {
+		error = cyapa_gen6_deep_sleep(cyapa, PIP_DEEP_SLEEP_STATE_ON);
+		if (error) {
+			dev_err(dev, "deep sleep wake fail: %d\n", error);
+			return error;
+		}
+	}
+
+	/*
+	 * Disable device assert interrupts for command response to avoid
+	 * disturbing system suspending or hibernating process.
+	 */
+	cyapa_gen6_config_dev_irq(cyapa, GEN6_DISABLE_CMD_IRQ);
+
+	if (power_mode == PWR_MODE_FULL_ACTIVE) {
+		error = cyapa_gen6_change_power_state(cyapa,
+				GEN6_POWER_MODE_ACTIVE);
+		if (error) {
+			dev_err(dev, "change to active fail: %d\n", error);
+			goto out;
+		}
+
+		PIP_DEV_SET_PWR_STATE(cyapa, PWR_MODE_FULL_ACTIVE);
+
+		/* Sync the interval setting from device. */
+		cyapa_gen6_get_interval_setting(cyapa, interval_setting);
+
+	} else if (power_mode == PWR_MODE_BTN_ONLY) {
+		error = cyapa_gen6_change_power_state(cyapa,
+				GEN6_POWER_MODE_BTN_ONLY);
+		if (error) {
+			dev_err(dev, "fail to button only mode: %d\n", error);
+			goto out;
+		}
+
+		PIP_DEV_SET_PWR_STATE(cyapa, PWR_MODE_BTN_ONLY);
+	} else {
+		/*
+		 * Gen6 internally supports to 2 low power scan interval time,
+		 * so can help to switch power mode quickly.
+		 * such as runtime suspend and system suspend.
+		 */
+		if (interval_setting->lp1_interval == sleep_time) {
+			lp_mode = GEN6_POWER_MODE_LP_MODE1;
+		} else if (interval_setting->lp2_interval == sleep_time) {
+			lp_mode = GEN6_POWER_MODE_LP_MODE2;
+		} else {
+			if (interval_setting->lp1_interval == 0) {
+				interval_setting->lp1_interval = sleep_time;
+				lp_mode = GEN6_POWER_MODE_LP_MODE1;
+			} else {
+				interval_setting->lp2_interval = sleep_time;
+				lp_mode = GEN6_POWER_MODE_LP_MODE2;
+			}
+			cyapa_gen6_set_interval_setting(cyapa,
+							interval_setting);
+		}
+
+		error = cyapa_gen6_change_power_state(cyapa, lp_mode);
+		if (error) {
+			dev_err(dev, "set power state to 0x%02x failed: %d\n",
+				lp_mode, error);
+			goto out;
+		}
+
+		PIP_DEV_SET_SLEEP_TIME(cyapa, sleep_time);
+		PIP_DEV_SET_PWR_STATE(cyapa,
+			cyapa_sleep_time_to_pwr_cmd(sleep_time));
+	}
+
+out:
+	cyapa_gen6_config_dev_irq(cyapa, GEN6_ENABLE_CMD_IRQ);
+	return error;
+}
+
+static int cyapa_gen6_initialize(struct cyapa *cyapa)
+{
+	return 0;
+}
+
+static int cyapa_pip_retrieve_data_structure(struct cyapa *cyapa,
+		u16 read_offset, u16 read_len, u8 data_id,
+		u8 *data, int *data_buf_lens)
+{
+	struct retrieve_data_struct_cmd {
+		struct pip_app_cmd_head head;
+		__le16 read_offset;
+		__le16 read_length;
+		u8 data_id;
+	} __packed cmd;
+	u8 resp_data[GEN6_MAX_RX_NUM + 10];
+	int resp_len;
+	int error;
+
+	memset(&cmd, 0, sizeof(cmd));
+	put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &cmd.head.addr);
+	put_unaligned_le16(sizeof(cmd), &cmd.head.length - 2);
+	cmd.head.report_id = PIP_APP_CMD_REPORT_ID;
+	cmd.head.cmd_code = PIP_RETRIEVE_DATA_STRUCTURE;
+	put_unaligned_le16(read_offset, &cmd.read_offset);
+	put_unaligned_le16(read_len, &cmd.read_length);
+	cmd.data_id = data_id;
+
+	resp_len = sizeof(resp_data);
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+				(u8 *)&cmd, sizeof(cmd),
+				resp_data, &resp_len,
+				500, cyapa_sort_tsg_pip_app_resp_data,
+				true);
+	if (error || !PIP_CMD_COMPLETE_SUCCESS(resp_data) ||
+		resp_data[6] != data_id ||
+		!VALID_CMD_RESP_HEADER(resp_data, PIP_RETRIEVE_DATA_STRUCTURE))
+		return (error < 0) ? error : -EAGAIN;
+
+	read_len = get_unaligned_le16(&resp_data[7]);
+	if (*data_buf_lens < read_len) {
+		*data_buf_lens = read_len;
+		return -ENOBUFS;
+	}
+
+	memcpy(data, &resp_data[10], read_len);
+	*data_buf_lens = read_len;
+	return 0;
+}
+
+static ssize_t cyapa_gen6_show_baseline(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct cyapa *cyapa = dev_get_drvdata(dev);
+	u8 data[GEN6_MAX_RX_NUM];
+	int data_len;
+	int size = 0;
+	int i;
+	int error;
+	int resume_error;
+
+	if (!cyapa_is_pip_app_mode(cyapa))
+		return -EBUSY;
+
+	/* 1. Suspend Scanning*/
+	error = cyapa_pip_suspend_scanning(cyapa);
+	if (error)
+		return error;
+
+	/* 2. IDAC and RX Attenuator Calibration Data (Center Frequency). */
+	data_len = sizeof(data);
+	error = cyapa_pip_retrieve_data_structure(cyapa, 0, data_len,
+			GEN6_RETRIEVE_DATA_ID_RX_ATTENURATOR_IDAC,
+			data, &data_len);
+	if (error)
+		goto resume_scanning;
+
+	size = scnprintf(buf, PAGE_SIZE, "%d %d %d %d %d %d ",
+			data[0],  /* RX Attenuator Mutual */
+			data[1],  /* IDAC Mutual */
+			data[2],  /* RX Attenuator Self RX */
+			data[3],  /* IDAC Self RX */
+			data[4],  /* RX Attenuator Self TX */
+			data[5]	  /* IDAC Self TX */
+			);
+
+	/* 3. Read Attenuator Trim. */
+	data_len = sizeof(data);
+	error = cyapa_pip_retrieve_data_structure(cyapa, 0, data_len,
+			GEN6_RETRIEVE_DATA_ID_ATTENURATOR_TRIM,
+			data, &data_len);
+	if (error)
+		goto resume_scanning;
+
+	/* set attenuator trim values. */
+	for (i = 0; i < data_len; i++)
+		size += scnprintf(buf + size, PAGE_SIZE - size,	"%d ", data[i]);
+	size += scnprintf(buf + size, PAGE_SIZE - size, "\n");
+
+resume_scanning:
+	/* 4. Resume Scanning*/
+	resume_error = cyapa_pip_resume_scanning(cyapa);
+	if (resume_error || error) {
+		memset(buf, 0, PAGE_SIZE);
+		return resume_error ? resume_error : error;
+	}
+
+	return size;
+}
+
+static int cyapa_gen6_operational_check(struct cyapa *cyapa)
+{
+	struct device *dev = &cyapa->client->dev;
+	int error;
+
+	if (cyapa->gen != CYAPA_GEN6)
+		return -ENODEV;
+
+	switch (cyapa->state) {
+	case CYAPA_STATE_GEN6_BL:
+		error = cyapa_pip_bl_exit(cyapa);
+		if (error) {
+			/* Try to update trackpad product information. */
+			cyapa_gen6_bl_read_app_info(cyapa);
+			goto out;
+		}
+
+		cyapa->state = CYAPA_STATE_GEN6_APP;
+
+	case CYAPA_STATE_GEN6_APP:
+		/*
+		 * If trackpad device in deep sleep mode,
+		 * the app command will fail.
+		 * So always try to reset trackpad device to full active when
+		 * the device state is required.
+		 */
+		error = cyapa_gen6_set_power_mode(cyapa,
+				PWR_MODE_FULL_ACTIVE, 0);
+		if (error)
+			dev_warn(dev, "%s: failed to set power active mode.\n",
+				__func__);
+
+		/* Get trackpad product information. */
+		error = cyapa_gen6_read_sys_info(cyapa);
+		if (error)
+			goto out;
+		/* Only support product ID starting with CYTRA */
+		if (memcmp(cyapa->product_id, product_id,
+				strlen(product_id)) != 0) {
+			dev_err(dev, "%s: unknown product ID (%s)\n",
+				__func__, cyapa->product_id);
+			error = -EINVAL;
+		}
+		break;
+	default:
+		error = -EINVAL;
+	}
+
+out:
+	return error;
+}
+
+const struct cyapa_dev_ops cyapa_gen6_ops = {
+	.check_fw = cyapa_pip_check_fw,
+	.bl_enter = cyapa_pip_bl_enter,
+	.bl_initiate = cyapa_pip_bl_initiate,
+	.update_fw = cyapa_pip_do_fw_update,
+	.bl_activate = cyapa_pip_bl_activate,
+	.bl_deactivate = cyapa_pip_bl_deactivate,
+
+	.show_baseline = cyapa_gen6_show_baseline,
+	.calibrate_store = cyapa_pip_do_calibrate,
+
+	.initialize = cyapa_gen6_initialize,
+
+	.state_parse = cyapa_pip_state_parse,
+	.operational_check = cyapa_gen6_operational_check,
+
+	.irq_handler = cyapa_pip_irq_handler,
+	.irq_cmd_handler = cyapa_pip_irq_cmd_handler,
+	.sort_empty_output_data = cyapa_empty_pip_output_data,
+	.set_power_mode = cyapa_gen6_set_power_mode,
+};
-- 
cgit v1.2.3


From 945525ee607471630d07c309e036ae4a53abe37f Mon Sep 17 00:00:00 2001
From: Dudley Du <dudl@cypress.com>
Date: Mon, 20 Jul 2015 16:57:53 -0700
Subject: Input: cyapa - add proximity support for gen5 and gen6 modules

Gen5 and Gen6 trackpad devices are able to detect and report object
proximity data/events, add this function support in the cyapa driver
through the ABS_DISTANCE event.

Signed-off-by: Dudley Du <dudl@cypress.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/mouse/cyapa.c      | 13 ++++++++-
 drivers/input/mouse/cyapa.h      |  3 ++
 drivers/input/mouse/cyapa_gen3.c |  7 +++++
 drivers/input/mouse/cyapa_gen5.c | 61 +++++++++++++++++++++++++++++++++++++++-
 drivers/input/mouse/cyapa_gen6.c | 19 +++++++++++++
 5 files changed, 101 insertions(+), 2 deletions(-)

diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c
index 6952ed1c92c7..2541fbb43533 100644
--- a/drivers/input/mouse/cyapa.c
+++ b/drivers/input/mouse/cyapa.c
@@ -477,6 +477,7 @@ static int cyapa_create_input_dev(struct cyapa *cyapa)
 	if (cyapa->gen >= CYAPA_GEN5) {
 		input_set_abs_params(input, ABS_MT_WIDTH_MAJOR, 0, 255, 0, 0);
 		input_set_abs_params(input, ABS_MT_WIDTH_MINOR, 0, 255, 0, 0);
+		input_set_abs_params(input, ABS_DISTANCE, 0, 1, 0, 0);
 	}
 
 	input_abs_set_res(input, ABS_MT_POSITION_X,
@@ -1340,6 +1341,13 @@ static int __maybe_unused cyapa_suspend(struct device *dev)
 					error);
 	}
 
+	/*
+	 * Disable proximity interrupt when system idle, want true touch to
+	 * wake the system.
+	 */
+	if (cyapa->dev_pwr_mode != PWR_MODE_OFF)
+		cyapa->ops->set_proximity(cyapa, false);
+
 	if (device_may_wakeup(dev))
 		cyapa->irq_wake = (enable_irq_wake(client->irq) == 0);
 
@@ -1360,7 +1368,10 @@ static int __maybe_unused cyapa_resume(struct device *dev)
 		cyapa->irq_wake = false;
 	}
 
-	/* Update device states and runtime PM states. */
+	/*
+	 * Update device states and runtime PM states.
+	 * Re-Enable proximity interrupt after enter operational mode.
+	 */
 	error = cyapa_reinitialize(cyapa);
 	if (error)
 		dev_warn(dev, "failed to reinitialize TP device: %d\n", error);
diff --git a/drivers/input/mouse/cyapa.h b/drivers/input/mouse/cyapa.h
index 3a211c0769e9..f51deb69c370 100644
--- a/drivers/input/mouse/cyapa.h
+++ b/drivers/input/mouse/cyapa.h
@@ -274,6 +274,8 @@ struct cyapa_dev_ops {
 			u8 *, int *, cb_sort);
 
 	int (*set_power_mode)(struct cyapa *, u8, u16);
+
+	int (*set_proximity)(struct cyapa *, bool);
 };
 
 struct cyapa_pip_cmd_states {
@@ -415,6 +417,7 @@ int cyapa_pip_bl_deactivate(struct cyapa *cyapa);
 ssize_t cyapa_pip_do_calibrate(struct device *dev,
 			       struct device_attribute *attr,
 			       const char *buf, size_t count);
+int cyapa_pip_set_proximity(struct cyapa *cyapa, bool enable);
 
 bool cyapa_pip_irq_cmd_handler(struct cyapa *cyapa);
 int cyapa_pip_irq_handler(struct cyapa *cyapa);
diff --git a/drivers/input/mouse/cyapa_gen3.c b/drivers/input/mouse/cyapa_gen3.c
index 3884311410f7..e7bbfee8b5d6 100644
--- a/drivers/input/mouse/cyapa_gen3.c
+++ b/drivers/input/mouse/cyapa_gen3.c
@@ -999,6 +999,11 @@ static int cyapa_gen3_set_power_mode(struct cyapa *cyapa, u8 power_mode,
 	return ret;
 }
 
+static int cyapa_gen3_set_proximity(struct cyapa *cyapa, bool enable)
+{
+	return -EOPNOTSUPP;
+}
+
 static int cyapa_gen3_get_query_data(struct cyapa *cyapa)
 {
 	u8 query_data[QUERY_DATA_SIZE];
@@ -1243,4 +1248,6 @@ const struct cyapa_dev_ops cyapa_gen3_ops = {
 	.irq_cmd_handler = cyapa_gen3_irq_cmd_handler,
 	.sort_empty_output_data = cyapa_gen3_empty_output_data,
 	.set_power_mode = cyapa_gen3_set_power_mode,
+
+	.set_proximity = cyapa_gen3_set_proximity,
 };
diff --git a/drivers/input/mouse/cyapa_gen5.c b/drivers/input/mouse/cyapa_gen5.c
index 4e19dce1dd62..fa135f855f34 100644
--- a/drivers/input/mouse/cyapa_gen5.c
+++ b/drivers/input/mouse/cyapa_gen5.c
@@ -52,6 +52,11 @@
 #define PIP_WAKEUP_EVENT_REPORT_ID  0x04
 #define PIP_PUSH_BTN_REPORT_ID      0x06
 #define GEN5_OLD_PUSH_BTN_REPORT_ID 0x05  /* Special for old Gen5 TP. */
+#define PIP_PROXIMITY_REPORT_ID     0x07
+
+#define PIP_PROXIMITY_REPORT_SIZE	6
+#define PIP_PROXIMITY_DISTANCE_OFFSET	0x05
+#define PIP_PROXIMITY_DISTANCE_MASK	0x01
 
 #define PIP_TOUCH_REPORT_HEAD_SIZE     7
 #define PIP_TOUCH_REPORT_MAX_SIZE      127
@@ -78,6 +83,8 @@
 #define PIP_SENSING_MODE_MUTUAL_CAP_FINE   0x00
 #define PIP_SENSING_MODE_SELF_CAP          0x02
 
+#define PIP_SET_PROXIMITY	0x49
+
 /* Macro of Gen5 */
 #define GEN5_BL_MAX_OUTPUT_LENGTH     0x0100
 #define GEN5_APP_MAX_OUTPUT_LENGTH    0x00fe
@@ -1517,6 +1524,28 @@ static int cyapa_gen5_disable_pip_report(struct cyapa *cyapa)
 	return 0;
 }
 
+int cyapa_pip_set_proximity(struct cyapa *cyapa, bool enable)
+{
+	u8 cmd[] = { 0x04, 0x00, 0x06, 0x00, 0x2f, 0x00, PIP_SET_PROXIMITY,
+		     (u8)!!enable
+	};
+	u8 resp_data[6];
+	int resp_len;
+	int error;
+
+	resp_len = sizeof(resp_data);
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd),
+			resp_data, &resp_len,
+			500, cyapa_sort_tsg_pip_app_resp_data, false);
+	if (error || !VALID_CMD_RESP_HEADER(resp_data, PIP_SET_PROXIMITY) ||
+			!PIP_CMD_COMPLETE_SUCCESS(resp_data)) {
+		error = (error == -ETIMEDOUT) ? -EOPNOTSUPP : error;
+		return error < 0 ? error : -EINVAL;
+	}
+
+	return 0;
+}
+
 int cyapa_pip_deep_sleep(struct cyapa *cyapa, u8 state)
 {
 	u8 cmd[] = { 0x05, 0x00, 0x00, 0x08};
@@ -2491,6 +2520,12 @@ static int cyapa_gen5_do_operational_check(struct cyapa *cyapa)
 			dev_warn(dev, "%s: failed to set power active mode.\n",
 				__func__);
 
+		/* By default, the trackpad proximity function is enabled. */
+		error = cyapa_pip_set_proximity(cyapa, true);
+		if (error)
+			dev_warn(dev, "%s: failed to enable proximity.\n",
+				__func__);
+
 		/* Get trackpad product information. */
 		error = cyapa_gen5_get_query_data(cyapa);
 		if (error)
@@ -2607,6 +2642,17 @@ static void cyapa_pip_report_buttons(struct cyapa *cyapa,
 	input_sync(input);
 }
 
+static void cyapa_pip_report_proximity(struct cyapa *cyapa,
+		const struct cyapa_pip_report_data *report_data)
+{
+	struct input_dev *input = cyapa->input;
+	u8 distance = report_data->report_head[PIP_PROXIMITY_DISTANCE_OFFSET] &
+			PIP_PROXIMITY_DISTANCE_MASK;
+
+	input_report_abs(input, ABS_DISTANCE, distance);
+	input_sync(input);
+}
+
 static void cyapa_pip_report_slot_data(struct cyapa *cyapa,
 		const struct cyapa_pip_touch_record *touch)
 {
@@ -2628,6 +2674,7 @@ static void cyapa_pip_report_slot_data(struct cyapa *cyapa,
 		y = cyapa->max_abs_y - y;
 	input_report_abs(input, ABS_MT_POSITION_X, x);
 	input_report_abs(input, ABS_MT_POSITION_Y, y);
+	input_report_abs(input, ABS_DISTANCE, 0);
 	input_report_abs(input, ABS_MT_PRESSURE,
 		touch->z);
 	input_report_abs(input, ABS_MT_TOUCH_MAJOR,
@@ -2715,7 +2762,8 @@ int cyapa_pip_irq_handler(struct cyapa *cyapa)
 	} else if (report_id != PIP_TOUCH_REPORT_ID &&
 			report_id != PIP_BTN_REPORT_ID &&
 			report_id != GEN5_OLD_PUSH_BTN_REPORT_ID &&
-			report_id != PIP_PUSH_BTN_REPORT_ID) {
+			report_id != PIP_PUSH_BTN_REPORT_ID &&
+			report_id != PIP_PROXIMITY_REPORT_ID) {
 		/* Running in BL mode or unknown response data read. */
 		dev_err(dev, "invalid report_id=0x%02x\n", report_id);
 		return -EINVAL;
@@ -2739,8 +2787,17 @@ int cyapa_pip_irq_handler(struct cyapa *cyapa)
 		return 0;
 	}
 
+	if (report_id == PIP_PROXIMITY_REPORT_ID &&
+			report_len != PIP_PROXIMITY_REPORT_SIZE) {
+		/* Invalid report data length of proximity packet. */
+		dev_err(dev, "invalid proximity data, length=%d\n", report_len);
+		return 0;
+	}
+
 	if (report_id == PIP_TOUCH_REPORT_ID)
 		cyapa_pip_report_touches(cyapa, &report_data);
+	else if (report_id == PIP_PROXIMITY_REPORT_ID)
+		cyapa_pip_report_proximity(cyapa, &report_data);
 	else
 		cyapa_pip_report_buttons(cyapa, &report_data);
 
@@ -2771,4 +2828,6 @@ const struct cyapa_dev_ops cyapa_gen5_ops = {
 	.irq_cmd_handler = cyapa_pip_irq_cmd_handler,
 	.sort_empty_output_data = cyapa_empty_pip_output_data,
 	.set_power_mode = cyapa_gen5_set_power_mode,
+
+	.set_proximity = cyapa_pip_set_proximity,
 };
diff --git a/drivers/input/mouse/cyapa_gen6.c b/drivers/input/mouse/cyapa_gen6.c
index 8a6aa73b5373..61f04132eb65 100644
--- a/drivers/input/mouse/cyapa_gen6.c
+++ b/drivers/input/mouse/cyapa_gen6.c
@@ -310,6 +310,17 @@ static int cyapa_gen6_config_dev_irq(struct cyapa *cyapa, u8 cmd_code)
 	return 0;
 }
 
+static int cyapa_gen6_set_proximity(struct cyapa *cyapa, bool enable)
+{
+	int error;
+
+	cyapa_gen6_config_dev_irq(cyapa, GEN6_DISABLE_CMD_IRQ);
+	error = cyapa_pip_set_proximity(cyapa, enable);
+	cyapa_gen6_config_dev_irq(cyapa, GEN6_ENABLE_CMD_IRQ);
+
+	return error;
+}
+
 static int cyapa_gen6_change_power_state(struct cyapa *cyapa, u8 power_mode)
 {
 	u8 cmd[] = { 0x04, 0x00, 0x06, 0x00, 0x2f, 0x00, 0x46, power_mode };
@@ -687,6 +698,12 @@ static int cyapa_gen6_operational_check(struct cyapa *cyapa)
 			dev_warn(dev, "%s: failed to set power active mode.\n",
 				__func__);
 
+		/* By default, the trackpad proximity function is enabled. */
+		error = cyapa_pip_set_proximity(cyapa, true);
+		if (error)
+			dev_warn(dev, "%s: failed to enable proximity.\n",
+				__func__);
+
 		/* Get trackpad product information. */
 		error = cyapa_gen6_read_sys_info(cyapa);
 		if (error)
@@ -727,4 +744,6 @@ const struct cyapa_dev_ops cyapa_gen6_ops = {
 	.irq_cmd_handler = cyapa_pip_irq_cmd_handler,
 	.sort_empty_output_data = cyapa_empty_pip_output_data,
 	.set_power_mode = cyapa_gen6_set_power_mode,
+
+	.set_proximity = cyapa_gen6_set_proximity,
 };
-- 
cgit v1.2.3


From 757cae5a6f0ac1c61ce149a066377a15d1ed881f Mon Sep 17 00:00:00 2001
From: Dudley Du <dudl@cypress.com>
Date: Mon, 20 Jul 2015 17:09:59 -0700
Subject: Input: cyapa - fully support runtime suspend power management

Fix the the runtime suspend power management not working issue when system
starts up and before user touches the trackpad device.
TEST=test on Chromebook.

Signed-off-by: Dudley Du <dudl@cypress.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/mouse/cyapa.c      | 73 ++++++++++++++++++++++++++++------------
 drivers/input/mouse/cyapa.h      |  2 +-
 drivers/input/mouse/cyapa_gen3.c |  4 +--
 drivers/input/mouse/cyapa_gen5.c | 21 ++++++++----
 drivers/input/mouse/cyapa_gen6.c |  4 +--
 5 files changed, 70 insertions(+), 34 deletions(-)

diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c
index 2541fbb43533..5c08eeba6162 100644
--- a/drivers/input/mouse/cyapa.c
+++ b/drivers/input/mouse/cyapa.c
@@ -367,6 +367,7 @@ static int cyapa_open(struct input_dev *input)
 {
 	struct cyapa *cyapa = input_get_drvdata(input);
 	struct i2c_client *client = cyapa->client;
+	struct device *dev = &client->dev;
 	int error;
 
 	error = mutex_lock_interruptible(&cyapa->state_sync_lock);
@@ -380,10 +381,9 @@ static int cyapa_open(struct input_dev *input)
 		 * when in operational mode.
 		 */
 		error = cyapa->ops->set_power_mode(cyapa,
-				PWR_MODE_FULL_ACTIVE, 0);
+				PWR_MODE_FULL_ACTIVE, 0, false);
 		if (error) {
-			dev_warn(&client->dev,
-				"set active power failed: %d\n", error);
+			dev_warn(dev, "set active power failed: %d\n", error);
 			goto out;
 		}
 	} else {
@@ -395,10 +395,14 @@ static int cyapa_open(struct input_dev *input)
 	}
 
 	enable_irq(client->irq);
-	if (!pm_runtime_enabled(&client->dev)) {
-		pm_runtime_set_active(&client->dev);
-		pm_runtime_enable(&client->dev);
+	if (!pm_runtime_enabled(dev)) {
+		pm_runtime_set_active(dev);
+		pm_runtime_enable(dev);
 	}
+
+	pm_runtime_get_sync(dev);
+	pm_runtime_mark_last_busy(dev);
+	pm_runtime_put_sync_autosuspend(dev);
 out:
 	mutex_unlock(&cyapa->state_sync_lock);
 	return error;
@@ -408,16 +412,17 @@ static void cyapa_close(struct input_dev *input)
 {
 	struct cyapa *cyapa = input_get_drvdata(input);
 	struct i2c_client *client = cyapa->client;
+	struct device *dev = &cyapa->client->dev;
 
 	mutex_lock(&cyapa->state_sync_lock);
 
 	disable_irq(client->irq);
-	if (pm_runtime_enabled(&client->dev))
-		pm_runtime_disable(&client->dev);
-	pm_runtime_set_suspended(&client->dev);
+	if (pm_runtime_enabled(dev))
+		pm_runtime_disable(dev);
+	pm_runtime_set_suspended(dev);
 
 	if (cyapa->operational)
-		cyapa->ops->set_power_mode(cyapa, PWR_MODE_OFF, 0);
+		cyapa->ops->set_power_mode(cyapa, PWR_MODE_OFF, 0, false);
 
 	mutex_unlock(&cyapa->state_sync_lock);
 }
@@ -527,7 +532,7 @@ static void cyapa_enable_irq_for_cmd(struct cyapa *cyapa)
 		 */
 		if (!input || cyapa->operational)
 			cyapa->ops->set_power_mode(cyapa,
-				PWR_MODE_FULL_ACTIVE, 0);
+				PWR_MODE_FULL_ACTIVE, 0, false);
 		/* Gen3 always using polling mode for command. */
 		if (cyapa->gen >= CYAPA_GEN5)
 			enable_irq(cyapa->client->irq);
@@ -542,7 +547,8 @@ static void cyapa_disable_irq_for_cmd(struct cyapa *cyapa)
 		if (cyapa->gen >= CYAPA_GEN5)
 			disable_irq(cyapa->client->irq);
 		if (!input || cyapa->operational)
-			cyapa->ops->set_power_mode(cyapa, PWR_MODE_OFF, 0);
+			cyapa->ops->set_power_mode(cyapa,
+						   PWR_MODE_OFF, 0, false);
 	}
 }
 
@@ -609,7 +615,7 @@ static int cyapa_initialize(struct cyapa *cyapa)
 
 	/* Power down the device until we need it. */
 	if (cyapa->operational)
-		cyapa->ops->set_power_mode(cyapa, PWR_MODE_OFF, 0);
+		cyapa->ops->set_power_mode(cyapa, PWR_MODE_OFF, 0, false);
 
 	return 0;
 }
@@ -625,7 +631,8 @@ static int cyapa_reinitialize(struct cyapa *cyapa)
 
 	/* Avoid command failures when TP was in OFF state. */
 	if (cyapa->operational)
-		cyapa->ops->set_power_mode(cyapa, PWR_MODE_FULL_ACTIVE, 0);
+		cyapa->ops->set_power_mode(cyapa,
+					   PWR_MODE_FULL_ACTIVE, 0, false);
 
 	error = cyapa_detect(cyapa);
 	if (error)
@@ -644,7 +651,8 @@ out:
 	if (!input || !input->users) {
 		/* Reset to power OFF state to save power when no user open. */
 		if (cyapa->operational)
-			cyapa->ops->set_power_mode(cyapa, PWR_MODE_OFF, 0);
+			cyapa->ops->set_power_mode(cyapa,
+						   PWR_MODE_OFF, 0, false);
 	} else if (!error && cyapa->operational) {
 		/*
 		 * Make sure only enable runtime PM when device is
@@ -652,6 +660,10 @@ out:
 		 */
 		pm_runtime_set_active(dev);
 		pm_runtime_enable(dev);
+
+		pm_runtime_get_sync(dev);
+		pm_runtime_mark_last_busy(dev);
+		pm_runtime_put_sync_autosuspend(dev);
 	}
 
 	return error;
@@ -661,8 +673,8 @@ static irqreturn_t cyapa_irq(int irq, void *dev_id)
 {
 	struct cyapa *cyapa = dev_id;
 	struct device *dev = &cyapa->client->dev;
+	int error;
 
-	pm_runtime_get_sync(dev);
 	if (device_may_wakeup(dev))
 		pm_wakeup_event(dev, 0);
 
@@ -681,7 +693,24 @@ static irqreturn_t cyapa_irq(int irq, void *dev_id)
 			goto out;
 		}
 
-		if (!cyapa->operational || cyapa->ops->irq_handler(cyapa)) {
+		if (cyapa->operational) {
+			error = cyapa->ops->irq_handler(cyapa);
+
+			/*
+			 * Apply runtime power management to touch report event
+			 * except the events caused by the command responses.
+			 * Note:
+			 * It will introduce about 20~40 ms additional delay
+			 * time in receiving for first valid touch report data.
+			 * The time is used to execute device runtime resume
+			 * process.
+			 */
+			pm_runtime_get_sync(dev);
+			pm_runtime_mark_last_busy(dev);
+			pm_runtime_put_sync_autosuspend(dev);
+		}
+
+		if (!cyapa->operational || error) {
 			if (!mutex_trylock(&cyapa->state_sync_lock)) {
 				cyapa->ops->sort_empty_output_data(cyapa,
 					NULL, NULL, NULL);
@@ -693,8 +722,6 @@ static irqreturn_t cyapa_irq(int irq, void *dev_id)
 	}
 
 out:
-	pm_runtime_mark_last_busy(dev);
-	pm_runtime_put_sync_autosuspend(dev);
 	return IRQ_HANDLED;
 }
 
@@ -1335,7 +1362,7 @@ static int __maybe_unused cyapa_suspend(struct device *dev)
 		power_mode = device_may_wakeup(dev) ? cyapa->suspend_power_mode
 						    : PWR_MODE_OFF;
 		error = cyapa->ops->set_power_mode(cyapa, power_mode,
-				cyapa->suspend_sleep_time);
+				cyapa->suspend_sleep_time, true);
 		if (error)
 			dev_err(dev, "suspend set power mode failed: %d\n",
 					error);
@@ -1389,7 +1416,8 @@ static int __maybe_unused cyapa_runtime_suspend(struct device *dev)
 
 	error = cyapa->ops->set_power_mode(cyapa,
 			cyapa->runtime_suspend_power_mode,
-			cyapa->runtime_suspend_sleep_time);
+			cyapa->runtime_suspend_sleep_time,
+			false);
 	if (error)
 		dev_warn(dev, "runtime suspend failed: %d\n", error);
 
@@ -1401,7 +1429,8 @@ static int __maybe_unused cyapa_runtime_resume(struct device *dev)
 	struct cyapa *cyapa = dev_get_drvdata(dev);
 	int error;
 
-	error = cyapa->ops->set_power_mode(cyapa, PWR_MODE_FULL_ACTIVE, 0);
+	error = cyapa->ops->set_power_mode(cyapa,
+					   PWR_MODE_FULL_ACTIVE, 0, false);
 	if (error)
 		dev_warn(dev, "runtime resume failed: %d\n", error);
 
diff --git a/drivers/input/mouse/cyapa.h b/drivers/input/mouse/cyapa.h
index f51deb69c370..af1253640590 100644
--- a/drivers/input/mouse/cyapa.h
+++ b/drivers/input/mouse/cyapa.h
@@ -273,7 +273,7 @@ struct cyapa_dev_ops {
 	int (*sort_empty_output_data)(struct cyapa *,
 			u8 *, int *, cb_sort);
 
-	int (*set_power_mode)(struct cyapa *, u8, u16);
+	int (*set_power_mode)(struct cyapa *, u8, u16, bool);
 
 	int (*set_proximity)(struct cyapa *, bool);
 };
diff --git a/drivers/input/mouse/cyapa_gen3.c b/drivers/input/mouse/cyapa_gen3.c
index e7bbfee8b5d6..1a9d12ae7538 100644
--- a/drivers/input/mouse/cyapa_gen3.c
+++ b/drivers/input/mouse/cyapa_gen3.c
@@ -950,7 +950,7 @@ static u16 cyapa_get_wait_time_for_pwr_cmd(u8 pwr_mode)
  * Device power mode can only be set when device is in operational mode.
  */
 static int cyapa_gen3_set_power_mode(struct cyapa *cyapa, u8 power_mode,
-				     u16 always_unused)
+		u16 always_unused, bool is_suspend_unused)
 {
 	int ret;
 	u8 power;
@@ -1112,7 +1112,7 @@ static int cyapa_gen3_do_operational_check(struct cyapa *cyapa)
 		 * may cause problems, so we set the power mode first here.
 		 */
 		error = cyapa_gen3_set_power_mode(cyapa,
-				PWR_MODE_FULL_ACTIVE, 0);
+				PWR_MODE_FULL_ACTIVE, 0, false);
 		if (error)
 			dev_err(dev, "%s: set full power mode failed: %d\n",
 				__func__, error);
diff --git a/drivers/input/mouse/cyapa_gen5.c b/drivers/input/mouse/cyapa_gen5.c
index fa135f855f34..6d7abbed67e4 100644
--- a/drivers/input/mouse/cyapa_gen5.c
+++ b/drivers/input/mouse/cyapa_gen5.c
@@ -19,6 +19,7 @@
 #include <linux/slab.h>
 #include <asm/unaligned.h>
 #include <linux/crc-itu-t.h>
+#include <linux/pm_runtime.h>
 #include "cyapa.h"
 
 
@@ -1565,7 +1566,7 @@ int cyapa_pip_deep_sleep(struct cyapa *cyapa, u8 state)
 }
 
 static int cyapa_gen5_set_power_mode(struct cyapa *cyapa,
-		u8 power_mode, u16 sleep_time)
+		u8 power_mode, u16 sleep_time, bool is_suspend)
 {
 	struct device *dev = &cyapa->client->dev;
 	u8 power_state;
@@ -1574,9 +1575,6 @@ static int cyapa_gen5_set_power_mode(struct cyapa *cyapa,
 	if (cyapa->state != CYAPA_STATE_GEN5_APP)
 		return 0;
 
-	/* Dump all the report data before do power mode commmands. */
-	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
-
 	if (PIP_DEV_GET_PWR_STATE(cyapa) == UNINIT_PWR_MODE) {
 		/*
 		 * Assume TP in deep sleep mode when driver is loaded,
@@ -1679,8 +1677,8 @@ static int cyapa_gen5_set_power_mode(struct cyapa *cyapa,
 		 * is suspending which may cause interrupt line unable to be
 		 * asserted again.
 		 */
-		cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
-		cyapa_gen5_disable_pip_report(cyapa);
+		if (is_suspend)
+			cyapa_gen5_disable_pip_report(cyapa);
 
 		PIP_DEV_SET_PWR_STATE(cyapa,
 			cyapa_sleep_time_to_pwr_cmd(sleep_time));
@@ -2515,7 +2513,7 @@ static int cyapa_gen5_do_operational_check(struct cyapa *cyapa)
 		 * the device state is required.
 		 */
 		error = cyapa_gen5_set_power_mode(cyapa,
-				PWR_MODE_FULL_ACTIVE, 0);
+				PWR_MODE_FULL_ACTIVE, 0, false);
 		if (error)
 			dev_warn(dev, "%s: failed to set power active mode.\n",
 				__func__);
@@ -2757,7 +2755,16 @@ int cyapa_pip_irq_handler(struct cyapa *cyapa)
 		/*
 		 * Device wake event from deep sleep mode for touch.
 		 * This interrupt event is used to wake system up.
+		 *
+		 * Note:
+		 * It will introduce about 20~40 ms additional delay
+		 * time in receiving for first valid touch report data.
+		 * The time is used to execute device runtime resume
+		 * process.
 		 */
+		pm_runtime_get_sync(dev);
+		pm_runtime_mark_last_busy(dev);
+		pm_runtime_put_sync_autosuspend(dev);
 		return 0;
 	} else if (report_id != PIP_TOUCH_REPORT_ID &&
 			report_id != PIP_BTN_REPORT_ID &&
diff --git a/drivers/input/mouse/cyapa_gen6.c b/drivers/input/mouse/cyapa_gen6.c
index 61f04132eb65..5f191071d44a 100644
--- a/drivers/input/mouse/cyapa_gen6.c
+++ b/drivers/input/mouse/cyapa_gen6.c
@@ -429,7 +429,7 @@ static int cyapa_gen6_deep_sleep(struct cyapa *cyapa, u8 state)
 }
 
 static int cyapa_gen6_set_power_mode(struct cyapa *cyapa,
-		u8 power_mode, u16 sleep_time)
+		u8 power_mode, u16 sleep_time, bool is_suspend)
 {
 	struct device *dev = &cyapa->client->dev;
 	struct gen6_interval_setting *interval_setting =
@@ -693,7 +693,7 @@ static int cyapa_gen6_operational_check(struct cyapa *cyapa)
 		 * the device state is required.
 		 */
 		error = cyapa_gen6_set_power_mode(cyapa,
-				PWR_MODE_FULL_ACTIVE, 0);
+				PWR_MODE_FULL_ACTIVE, 0, false);
 		if (error)
 			dev_warn(dev, "%s: failed to set power active mode.\n",
 				__func__);
-- 
cgit v1.2.3


From ce2ae9e3e6a152866a33972c966f8315aab2cb1d Mon Sep 17 00:00:00 2001
From: Dudley Du <dudl@cypress.com>
Date: Mon, 20 Jul 2015 17:15:46 -0700
Subject: Input: cyapa - add ACPI HID CYAP0002 for Gen6 devices

Add CYTP0002 to the list of ACPI HIDs recognized by the driver.

Signed-off-by: Dudley Du <dudl@cypress.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/mouse/cyapa.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c
index 5c08eeba6162..6195ccb3cfde 100644
--- a/drivers/input/mouse/cyapa.c
+++ b/drivers/input/mouse/cyapa.c
@@ -1452,6 +1452,7 @@ MODULE_DEVICE_TABLE(i2c, cyapa_id_table);
 static const struct acpi_device_id cyapa_acpi_id[] = {
 	{ "CYAP0000", 0 },  /* Gen3 trackpad with 0x67 I2C address. */
 	{ "CYAP0001", 0 },  /* Gen5 trackpad with 0x24 I2C address. */
+	{ "CYAP0002", 0 },  /* Gen6 trackpad with 0x24 I2C address. */
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, cyapa_acpi_id);
-- 
cgit v1.2.3


From e75ed3c47a2082fad87dd6d726ff7275d35e197c Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Mon, 6 Jul 2015 10:32:27 -0700
Subject: Input: arizona-haptic - convert to use managed input devices

Using managed input device (via devm_input_allocate_device) simplifies
error handling and driver removal paths and also silences CID# 712569.

Reviewed-by: Joshua Clayton <stillcompiling@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/misc/arizona-haptics.c | 26 ++++----------------------
 1 file changed, 4 insertions(+), 22 deletions(-)

diff --git a/drivers/input/misc/arizona-haptics.c b/drivers/input/misc/arizona-haptics.c
index 4dbbed74c9e4..4bf678541496 100644
--- a/drivers/input/misc/arizona-haptics.c
+++ b/drivers/input/misc/arizona-haptics.c
@@ -170,8 +170,8 @@ static int arizona_haptics_probe(struct platform_device *pdev)
 
 	INIT_WORK(&haptics->work, arizona_haptics_work);
 
-	haptics->input_dev = input_allocate_device();
-	if (haptics->input_dev == NULL) {
+	haptics->input_dev = devm_input_allocate_device(&pdev->dev);
+	if (!haptics->input_dev) {
 		dev_err(arizona->dev, "Failed to allocate input device\n");
 		return -ENOMEM;
 	}
@@ -188,41 +188,23 @@ static int arizona_haptics_probe(struct platform_device *pdev)
 	if (ret < 0) {
 		dev_err(arizona->dev, "input_ff_create_memless() failed: %d\n",
 			ret);
-		goto err_ialloc;
+		return ret;
 	}
 
 	ret = input_register_device(haptics->input_dev);
 	if (ret < 0) {
 		dev_err(arizona->dev, "couldn't register input device: %d\n",
 			ret);
-		goto err_iff;
+		return ret;
 	}
 
 	platform_set_drvdata(pdev, haptics);
 
-	return 0;
-
-err_iff:
-	if (haptics->input_dev)
-		input_ff_destroy(haptics->input_dev);
-err_ialloc:
-	input_free_device(haptics->input_dev);
-
-	return ret;
-}
-
-static int arizona_haptics_remove(struct platform_device *pdev)
-{
-	struct arizona_haptics *haptics = platform_get_drvdata(pdev);
-
-	input_unregister_device(haptics->input_dev);
-
 	return 0;
 }
 
 static struct platform_driver arizona_haptics_driver = {
 	.probe		= arizona_haptics_probe,
-	.remove		= arizona_haptics_remove,
 	.driver		= {
 		.name	= "arizona-haptics",
 	},
-- 
cgit v1.2.3


From a636df9673e1e4627722777fe6075943372e76be Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@kernel.org>
Date: Mon, 27 Jul 2015 17:26:38 -0700
Subject: Input: tsc2005 - improve readability of register defines

Improve defines for first control byte by removing 0x00 prefix (the defines
are for 8 bit values and not for 16 bit values) and expose register
structure by exposing the shift.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/tsc2005.c | 28 ++++++++++++++++++----------
 1 file changed, 18 insertions(+), 10 deletions(-)

diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c
index aaf947525cd9..2a27a1f77bcb 100644
--- a/drivers/input/touchscreen/tsc2005.c
+++ b/drivers/input/touchscreen/tsc2005.c
@@ -61,16 +61,24 @@
 #define TSC2005_CMD_12BIT		0x04
 
 /* control byte 0 */
-#define TSC2005_REG_READ		0x0001
-#define TSC2005_REG_PND0		0x0002
-#define TSC2005_REG_X			0x0000
-#define TSC2005_REG_Y			0x0008
-#define TSC2005_REG_Z1			0x0010
-#define TSC2005_REG_Z2			0x0018
-#define TSC2005_REG_TEMP_HIGH		0x0050
-#define TSC2005_REG_CFR0		0x0060
-#define TSC2005_REG_CFR1		0x0068
-#define TSC2005_REG_CFR2		0x0070
+#define TSC2005_REG_READ		0x01 /* R/W access */
+#define TSC2005_REG_PND0		0x02 /* Power Not Down Control */
+#define TSC2005_REG_X			(0x0 << 3)
+#define TSC2005_REG_Y			(0x1 << 3)
+#define TSC2005_REG_Z1			(0x2 << 3)
+#define TSC2005_REG_Z2			(0x3 << 3)
+#define TSC2005_REG_AUX			(0x4 << 3)
+#define TSC2005_REG_TEMP1		(0x5 << 3)
+#define TSC2005_REG_TEMP2		(0x6 << 3)
+#define TSC2005_REG_STATUS		(0x7 << 3)
+#define TSC2005_REG_AUX_HIGH		(0x8 << 3)
+#define TSC2005_REG_AUX_LOW		(0x9 << 3)
+#define TSC2005_REG_TEMP_HIGH		(0xA << 3)
+#define TSC2005_REG_TEMP_LOW		(0xB << 3)
+#define TSC2005_REG_CFR0		(0xC << 3)
+#define TSC2005_REG_CFR1		(0xD << 3)
+#define TSC2005_REG_CFR2		(0xE << 3)
+#define TSC2005_REG_CONV_FUNC		(0xF << 3)
 
 /* configuration register 0 */
 #define TSC2005_CFR0_PRECHARGE_276US	0x0040
-- 
cgit v1.2.3


From f00d1f8f1d9720dcf9ec7911916b685e6f92729f Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@kernel.org>
Date: Mon, 27 Jul 2015 17:27:09 -0700
Subject: Input: tsc2005 - fix Kconfig indentation

Replace spaces with tab, so that the tsc2005 Kconfig entry matches the
other entries in drivers/input/touchscreen/Kconfig.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/Kconfig | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 5b272ba091ab..cb8405d40506 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -915,10 +915,10 @@ config TOUCHSCREEN_TSC_SERIO
 	  module will be called tsc40.
 
 config TOUCHSCREEN_TSC2005
-        tristate "TSC2005 based touchscreens"
-        depends on SPI_MASTER
-        help
-          Say Y here if you have a TSC2005 based touchscreen.
+	tristate "TSC2005 based touchscreens"
+	depends on SPI_MASTER
+	help
+	  Say Y here if you have a TSC2005 based touchscreen.
 
 	  If unsure, say N.
 
-- 
cgit v1.2.3


From 273cf48aa95a86ee368a10b9a2a6b0c62544ffe5 Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@kernel.org>
Date: Mon, 27 Jul 2015 17:27:25 -0700
Subject: Input: tsc2005 - convert to regmap

Convert driver so that it uses regmap instead of directly using
spi_transfer for all register accesses.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/Kconfig   |   1 +
 drivers/input/touchscreen/tsc2005.c | 171 +++++++++++++-----------------------
 2 files changed, 60 insertions(+), 112 deletions(-)

diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index cb8405d40506..860d426c480e 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -917,6 +917,7 @@ config TOUCHSCREEN_TSC_SERIO
 config TOUCHSCREEN_TSC2005
 	tristate "TSC2005 based touchscreens"
 	depends on SPI_MASTER
+	select REGMAP_SPI
 	help
 	  Say Y here if you have a TSC2005 based touchscreen.
 
diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c
index 2a27a1f77bcb..b116ee9069ca 100644
--- a/drivers/input/touchscreen/tsc2005.c
+++ b/drivers/input/touchscreen/tsc2005.c
@@ -34,6 +34,7 @@
 #include <linux/spi/spi.h>
 #include <linux/spi/tsc2005.h>
 #include <linux/regulator/consumer.h>
+#include <linux/regmap.h>
 
 /*
  * The touchscreen interface operates as follows:
@@ -120,20 +121,37 @@
 #define TSC2005_SPI_MAX_SPEED_HZ	10000000
 #define TSC2005_PENUP_TIME_MS		40
 
-struct tsc2005_spi_rd {
-	struct spi_transfer	spi_xfer;
-	u32			spi_tx;
-	u32			spi_rx;
+static const struct regmap_range tsc2005_writable_ranges[] = {
+	regmap_reg_range(TSC2005_REG_AUX_HIGH, TSC2005_REG_CFR2),
 };
 
+static const struct regmap_access_table tsc2005_writable_table = {
+	.yes_ranges = tsc2005_writable_ranges,
+	.n_yes_ranges = ARRAY_SIZE(tsc2005_writable_ranges),
+};
+
+static struct regmap_config tsc2005_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 16,
+	.reg_stride = 0x08,
+	.max_register = 0x78,
+	.read_flag_mask = TSC2005_REG_READ,
+	.write_flag_mask = TSC2005_REG_PND0,
+	.wr_table = &tsc2005_writable_table,
+	.use_single_rw = true,
+};
+
+struct tsc2005_data {
+	u16 x;
+	u16 y;
+	u16 z1;
+	u16 z2;
+} __packed;
+#define TSC2005_DATA_REGS 4
+
 struct tsc2005 {
 	struct spi_device	*spi;
-
-	struct spi_message      spi_read_msg;
-	struct tsc2005_spi_rd	spi_x;
-	struct tsc2005_spi_rd	spi_y;
-	struct tsc2005_spi_rd	spi_z1;
-	struct tsc2005_spi_rd	spi_z2;
+	struct regmap		*regmap;
 
 	struct input_dev	*idev;
 	char			phys[32];
@@ -190,62 +208,6 @@ static int tsc2005_cmd(struct tsc2005 *ts, u8 cmd)
 	return 0;
 }
 
-static int tsc2005_write(struct tsc2005 *ts, u8 reg, u16 value)
-{
-	u32 tx = ((reg | TSC2005_REG_PND0) << 16) | value;
-	struct spi_transfer xfer = {
-		.tx_buf		= &tx,
-		.len		= 4,
-		.bits_per_word	= 24,
-	};
-	struct spi_message msg;
-	int error;
-
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-
-	error = spi_sync(ts->spi, &msg);
-	if (error) {
-		dev_err(&ts->spi->dev,
-			"%s: failed, register: %x, value: %x, error: %d\n",
-			__func__, reg, value, error);
-		return error;
-	}
-
-	return 0;
-}
-
-static void tsc2005_setup_read(struct tsc2005_spi_rd *rd, u8 reg, bool last)
-{
-	memset(rd, 0, sizeof(*rd));
-
-	rd->spi_tx		   = (reg | TSC2005_REG_READ) << 16;
-	rd->spi_xfer.tx_buf	   = &rd->spi_tx;
-	rd->spi_xfer.rx_buf	   = &rd->spi_rx;
-	rd->spi_xfer.len	   = 4;
-	rd->spi_xfer.bits_per_word = 24;
-	rd->spi_xfer.cs_change	   = !last;
-}
-
-static int tsc2005_read(struct tsc2005 *ts, u8 reg, u16 *value)
-{
-	struct tsc2005_spi_rd spi_rd;
-	struct spi_message msg;
-	int error;
-
-	tsc2005_setup_read(&spi_rd, reg, true);
-
-	spi_message_init(&msg);
-	spi_message_add_tail(&spi_rd.spi_xfer, &msg);
-
-	error = spi_sync(ts->spi, &msg);
-	if (error)
-		return error;
-
-	*value = spi_rd.spi_rx;
-	return 0;
-}
-
 static void tsc2005_update_pen_state(struct tsc2005 *ts,
 				     int x, int y, int pressure)
 {
@@ -274,26 +236,23 @@ static irqreturn_t tsc2005_irq_thread(int irq, void *_ts)
 	struct tsc2005 *ts = _ts;
 	unsigned long flags;
 	unsigned int pressure;
-	u32 x, y;
-	u32 z1, z2;
+	struct tsc2005_data tsdata;
 	int error;
 
 	/* read the coordinates */
-	error = spi_sync(ts->spi, &ts->spi_read_msg);
+	error = regmap_bulk_read(ts->regmap, TSC2005_REG_X, &tsdata,
+				 TSC2005_DATA_REGS);
 	if (unlikely(error))
 		goto out;
 
-	x = ts->spi_x.spi_rx;
-	y = ts->spi_y.spi_rx;
-	z1 = ts->spi_z1.spi_rx;
-	z2 = ts->spi_z2.spi_rx;
-
 	/* validate position */
-	if (unlikely(x > MAX_12BIT || y > MAX_12BIT))
+	if (unlikely(tsdata.x > MAX_12BIT || tsdata.y > MAX_12BIT))
 		goto out;
 
 	/* Skip reading if the pressure components are out of range */
-	if (unlikely(z1 == 0 || z2 > MAX_12BIT || z1 >= z2))
+	if (unlikely(tsdata.z1 == 0 || tsdata.z2 > MAX_12BIT))
+		goto out;
+	if (unlikely(tsdata.z1 >= tsdata.z2))
 		goto out;
 
        /*
@@ -301,8 +260,8 @@ static irqreturn_t tsc2005_irq_thread(int irq, void *_ts)
 	* the value before pen-up - that implies SPI fed us stale data
 	*/
 	if (!ts->pen_down &&
-	    ts->in_x == x && ts->in_y == y &&
-	    ts->in_z1 == z1 && ts->in_z2 == z2) {
+	    ts->in_x == tsdata.x && ts->in_y == tsdata.y &&
+	    ts->in_z1 == tsdata.z1 && ts->in_z2 == tsdata.z2) {
 		goto out;
 	}
 
@@ -310,20 +269,20 @@ static irqreturn_t tsc2005_irq_thread(int irq, void *_ts)
 	 * At this point we are happy we have a valid and useful reading.
 	 * Remember it for later comparisons. We may now begin downsampling.
 	 */
-	ts->in_x = x;
-	ts->in_y = y;
-	ts->in_z1 = z1;
-	ts->in_z2 = z2;
+	ts->in_x = tsdata.x;
+	ts->in_y = tsdata.y;
+	ts->in_z1 = tsdata.z1;
+	ts->in_z2 = tsdata.z2;
 
 	/* Compute touch pressure resistance using equation #1 */
-	pressure = x * (z2 - z1) / z1;
+	pressure = tsdata.x * (tsdata.z2 - tsdata.z1) / tsdata.z1;
 	pressure = pressure * ts->x_plate_ohm / 4096;
 	if (unlikely(pressure > MAX_12BIT))
 		goto out;
 
 	spin_lock_irqsave(&ts->lock, flags);
 
-	tsc2005_update_pen_state(ts, x, y, pressure);
+	tsc2005_update_pen_state(ts, tsdata.x, tsdata.y, pressure);
 	mod_timer(&ts->penup_timer,
 		  jiffies + msecs_to_jiffies(TSC2005_PENUP_TIME_MS));
 
@@ -346,9 +305,9 @@ static void tsc2005_penup_timer(unsigned long data)
 
 static void tsc2005_start_scan(struct tsc2005 *ts)
 {
-	tsc2005_write(ts, TSC2005_REG_CFR0, TSC2005_CFR0_INITVALUE);
-	tsc2005_write(ts, TSC2005_REG_CFR1, TSC2005_CFR1_INITVALUE);
-	tsc2005_write(ts, TSC2005_REG_CFR2, TSC2005_CFR2_INITVALUE);
+	regmap_write(ts->regmap, TSC2005_REG_CFR0, TSC2005_CFR0_INITVALUE);
+	regmap_write(ts->regmap, TSC2005_REG_CFR1, TSC2005_CFR1_INITVALUE);
+	regmap_write(ts->regmap, TSC2005_REG_CFR2, TSC2005_CFR2_INITVALUE);
 	tsc2005_cmd(ts, TSC2005_CMD_NORMAL);
 }
 
@@ -398,9 +357,9 @@ static ssize_t tsc2005_selftest_show(struct device *dev,
 {
 	struct spi_device *spi = to_spi_device(dev);
 	struct tsc2005 *ts = spi_get_drvdata(spi);
-	u16 temp_high;
-	u16 temp_high_orig;
-	u16 temp_high_test;
+	unsigned int temp_high;
+	unsigned int temp_high_orig;
+	unsigned int temp_high_test;
 	bool success = true;
 	int error;
 
@@ -411,7 +370,7 @@ static ssize_t tsc2005_selftest_show(struct device *dev,
 	 */
 	__tsc2005_disable(ts);
 
-	error = tsc2005_read(ts, TSC2005_REG_TEMP_HIGH, &temp_high_orig);
+	error = regmap_read(ts->regmap, TSC2005_REG_TEMP_HIGH, &temp_high_orig);
 	if (error) {
 		dev_warn(dev, "selftest failed: read error %d\n", error);
 		success = false;
@@ -420,14 +379,14 @@ static ssize_t tsc2005_selftest_show(struct device *dev,
 
 	temp_high_test = (temp_high_orig - 1) & MAX_12BIT;
 
-	error = tsc2005_write(ts, TSC2005_REG_TEMP_HIGH, temp_high_test);
+	error = regmap_write(ts->regmap, TSC2005_REG_TEMP_HIGH, temp_high_test);
 	if (error) {
 		dev_warn(dev, "selftest failed: write error %d\n", error);
 		success = false;
 		goto out;
 	}
 
-	error = tsc2005_read(ts, TSC2005_REG_TEMP_HIGH, &temp_high);
+	error = regmap_read(ts->regmap, TSC2005_REG_TEMP_HIGH, &temp_high);
 	if (error) {
 		dev_warn(dev, "selftest failed: read error %d after write\n",
 			 error);
@@ -450,7 +409,7 @@ static ssize_t tsc2005_selftest_show(struct device *dev,
 		goto out;
 
 	/* test that the reset really happened */
-	error = tsc2005_read(ts, TSC2005_REG_TEMP_HIGH, &temp_high);
+	error = regmap_read(ts->regmap, TSC2005_REG_TEMP_HIGH, &temp_high);
 	if (error) {
 		dev_warn(dev, "selftest failed: read error %d after reset\n",
 			 error);
@@ -503,7 +462,7 @@ static void tsc2005_esd_work(struct work_struct *work)
 {
 	struct tsc2005 *ts = container_of(work, struct tsc2005, esd_work.work);
 	int error;
-	u16 r;
+	unsigned int r;
 
 	if (!mutex_trylock(&ts->mutex)) {
 		/*
@@ -519,7 +478,7 @@ static void tsc2005_esd_work(struct work_struct *work)
 		goto out;
 
 	/* We should be able to read register without disabling interrupts. */
-	error = tsc2005_read(ts, TSC2005_REG_CFR0, &r);
+	error = regmap_read(ts->regmap, TSC2005_REG_CFR0, &r);
 	if (!error &&
 	    !((r ^ TSC2005_CFR0_INITVALUE) & TSC2005_CFR0_RW_MASK)) {
 		goto out;
@@ -583,20 +542,6 @@ static void tsc2005_close(struct input_dev *input)
 	mutex_unlock(&ts->mutex);
 }
 
-static void tsc2005_setup_spi_xfer(struct tsc2005 *ts)
-{
-	tsc2005_setup_read(&ts->spi_x, TSC2005_REG_X, false);
-	tsc2005_setup_read(&ts->spi_y, TSC2005_REG_Y, false);
-	tsc2005_setup_read(&ts->spi_z1, TSC2005_REG_Z1, false);
-	tsc2005_setup_read(&ts->spi_z2, TSC2005_REG_Z2, true);
-
-	spi_message_init(&ts->spi_read_msg);
-	spi_message_add_tail(&ts->spi_x.spi_xfer, &ts->spi_read_msg);
-	spi_message_add_tail(&ts->spi_y.spi_xfer, &ts->spi_read_msg);
-	spi_message_add_tail(&ts->spi_z1.spi_xfer, &ts->spi_read_msg);
-	spi_message_add_tail(&ts->spi_z2.spi_xfer, &ts->spi_read_msg);
-}
-
 static int tsc2005_probe(struct spi_device *spi)
 {
 	const struct tsc2005_platform_data *pdata = dev_get_platdata(&spi->dev);
@@ -661,6 +606,10 @@ static int tsc2005_probe(struct spi_device *spi)
 	ts->spi = spi;
 	ts->idev = input_dev;
 
+	ts->regmap = devm_regmap_init_spi(spi, &tsc2005_regmap_config);
+	if (IS_ERR(ts->regmap))
+		return PTR_ERR(ts->regmap);
+
 	ts->x_plate_ohm = x_plate_ohm;
 	ts->esd_timeout = esd_timeout;
 
@@ -700,8 +649,6 @@ static int tsc2005_probe(struct spi_device *spi)
 
 	INIT_DELAYED_WORK(&ts->esd_work, tsc2005_esd_work);
 
-	tsc2005_setup_spi_xfer(ts);
-
 	snprintf(ts->phys, sizeof(ts->phys),
 		 "%s/input-ts", dev_name(&spi->dev));
 
-- 
cgit v1.2.3


From 80b46aa69e543939e39eca5ae96fe508a1da2230 Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@kernel.org>
Date: Mon, 27 Jul 2015 17:28:37 -0700
Subject: Input: tsc2005 - simplify drvdata acquisition

Using dev_*_drvdata() instead of spi_*_drvdata() reduces lines of code and
prepares the driver for possible tsc2004 support, which is i2c based.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/tsc2005.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c
index b116ee9069ca..4d3f3ee37d6d 100644
--- a/drivers/input/touchscreen/tsc2005.c
+++ b/drivers/input/touchscreen/tsc2005.c
@@ -355,8 +355,7 @@ static ssize_t tsc2005_selftest_show(struct device *dev,
 				     struct device_attribute *attr,
 				     char *buf)
 {
-	struct spi_device *spi = to_spi_device(dev);
-	struct tsc2005 *ts = spi_get_drvdata(spi);
+	struct tsc2005 *ts = dev_get_drvdata(dev);
 	unsigned int temp_high;
 	unsigned int temp_high_orig;
 	unsigned int temp_high_test;
@@ -441,8 +440,7 @@ static umode_t tsc2005_attr_is_visible(struct kobject *kobj,
 				      struct attribute *attr, int n)
 {
 	struct device *dev = container_of(kobj, struct device, kobj);
-	struct spi_device *spi = to_spi_device(dev);
-	struct tsc2005 *ts = spi_get_drvdata(spi);
+	struct tsc2005 *ts = dev_get_drvdata(dev);
 	umode_t mode = attr->mode;
 
 	if (attr == &dev_attr_selftest.attr) {
@@ -690,7 +688,7 @@ static int tsc2005_probe(struct spi_device *spi)
 			return error;
 	}
 
-	spi_set_drvdata(spi, ts);
+	dev_set_drvdata(&spi->dev, ts);
 	error = sysfs_create_group(&spi->dev.kobj, &tsc2005_attr_group);
 	if (error) {
 		dev_err(&spi->dev,
@@ -718,7 +716,7 @@ disable_regulator:
 
 static int tsc2005_remove(struct spi_device *spi)
 {
-	struct tsc2005 *ts = spi_get_drvdata(spi);
+	struct tsc2005 *ts = dev_get_drvdata(&spi->dev);
 
 	sysfs_remove_group(&spi->dev.kobj, &tsc2005_attr_group);
 
@@ -730,8 +728,7 @@ static int tsc2005_remove(struct spi_device *spi)
 
 static int __maybe_unused tsc2005_suspend(struct device *dev)
 {
-	struct spi_device *spi = to_spi_device(dev);
-	struct tsc2005 *ts = spi_get_drvdata(spi);
+	struct tsc2005 *ts = dev_get_drvdata(dev);
 
 	mutex_lock(&ts->mutex);
 
@@ -747,8 +744,7 @@ static int __maybe_unused tsc2005_suspend(struct device *dev)
 
 static int __maybe_unused tsc2005_resume(struct device *dev)
 {
-	struct spi_device *spi = to_spi_device(dev);
-	struct tsc2005 *ts = spi_get_drvdata(spi);
+	struct tsc2005 *ts = dev_get_drvdata(dev);
 
 	mutex_lock(&ts->mutex);
 
-- 
cgit v1.2.3


From d257f2980feb431ac7f0ffa1978fb694f56c7782 Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@kernel.org>
Date: Mon, 27 Jul 2015 17:28:58 -0700
Subject: Input: tsc2005 - convert to gpiod

The GPIOD API can be used from boardcode, so that the DT check can be
removed. To avoid breaking existing boardcode, _optional() variant has been
chosen. For completely removing the DT check, the regulator has also been
made optional, so that it could be supplied from boardcode.

As a side-effect the patch fixes the after-probe reset GPIO state, so that
the device is not kept in reset state.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/tsc2005.c | 47 ++++++++++++++-----------------------
 1 file changed, 18 insertions(+), 29 deletions(-)

diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c
index 4d3f3ee37d6d..0f65d02eeb26 100644
--- a/drivers/input/touchscreen/tsc2005.c
+++ b/drivers/input/touchscreen/tsc2005.c
@@ -30,11 +30,11 @@
 #include <linux/delay.h>
 #include <linux/pm.h>
 #include <linux/of.h>
-#include <linux/of_gpio.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/tsc2005.h>
 #include <linux/regulator/consumer.h>
 #include <linux/regmap.h>
+#include <linux/gpio/consumer.h>
 
 /*
  * The touchscreen interface operates as follows:
@@ -180,7 +180,7 @@ struct tsc2005 {
 
 	struct regulator	*vio;
 
-	int			reset_gpio;
+	struct gpio_desc	*reset_gpio;
 	void			(*set_reset)(bool enable);
 };
 
@@ -318,8 +318,8 @@ static void tsc2005_stop_scan(struct tsc2005 *ts)
 
 static void tsc2005_set_reset(struct tsc2005 *ts, bool enable)
 {
-	if (ts->reset_gpio >= 0)
-		gpio_set_value(ts->reset_gpio, enable);
+	if (ts->reset_gpio)
+		gpiod_set_value_cansleep(ts->reset_gpio, enable);
 	else if (ts->set_reset)
 		ts->set_reset(enable);
 }
@@ -611,34 +611,23 @@ static int tsc2005_probe(struct spi_device *spi)
 	ts->x_plate_ohm = x_plate_ohm;
 	ts->esd_timeout = esd_timeout;
 
-	if (np) {
-		ts->reset_gpio = of_get_named_gpio(np, "reset-gpios", 0);
-		if (ts->reset_gpio == -EPROBE_DEFER)
-			return ts->reset_gpio;
-		if (ts->reset_gpio < 0) {
-			dev_err(&spi->dev, "error acquiring reset gpio: %d\n",
-				ts->reset_gpio);
-			return ts->reset_gpio;
-		}
+	ts->reset_gpio = devm_gpiod_get_optional(&spi->dev, "reset",
+						 GPIOD_OUT_HIGH);
+	if (IS_ERR(ts->reset_gpio)) {
+		error = PTR_ERR(ts->reset_gpio);
+		dev_err(&spi->dev, "error acquiring reset gpio: %d\n", error);
+		return error;
+	}
 
-		error = devm_gpio_request_one(&spi->dev, ts->reset_gpio, 0,
-					      "reset-gpios");
-		if (error) {
-			dev_err(&spi->dev, "error requesting reset gpio: %d\n",
-				error);
-			return error;
-		}
+	ts->vio = devm_regulator_get_optional(&spi->dev, "vio");
+	if (IS_ERR(ts->vio)) {
+		error = PTR_ERR(ts->vio);
+		dev_err(&spi->dev, "vio regulator missing (%d)", error);
+		return error;
+	}
 
-		ts->vio = devm_regulator_get(&spi->dev, "vio");
-		if (IS_ERR(ts->vio)) {
-			error = PTR_ERR(ts->vio);
-			dev_err(&spi->dev, "vio regulator missing (%d)", error);
-			return error;
-		}
-	} else {
-		ts->reset_gpio = -1;
+	if (!ts->reset_gpio && pdata)
 		ts->set_reset = pdata->set_reset;
-	}
 
 	mutex_init(&ts->mutex);
 
-- 
cgit v1.2.3


From 2e9e910e8a4626d1217b6887c74a456d2835be2a Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier@osg.samsung.com>
Date: Thu, 30 Jul 2015 10:38:52 -0700
Subject: Input: export I2C module alias information in missing drivers

The I2C core always reports the MODALIAS uevent as "i2c:<client name"
regardless if the driver was matched using the I2C id_table or the
of_match_table. So the driver needs to export the I2C table and this
be built into the module or udev won't have the necessary information
to auto load the correct module when the device is added.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/misc/gp2ap002a00f.c  | 1 +
 drivers/input/touchscreen/goodix.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/input/misc/gp2ap002a00f.c b/drivers/input/misc/gp2ap002a00f.c
index ba301af91b95..3bfdfcc20485 100644
--- a/drivers/input/misc/gp2ap002a00f.c
+++ b/drivers/input/misc/gp2ap002a00f.c
@@ -267,6 +267,7 @@ static const struct i2c_device_id gp2a_i2c_id[] = {
 	{ GP2A_I2C_NAME, 0 },
 	{ }
 };
+MODULE_DEVICE_TABLE(i2c, gp2a_i2c_id);
 
 static struct i2c_driver gp2a_i2c_driver = {
 	.driver = {
diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c
index ccd9dca61195..d3f44a8577f5 100644
--- a/drivers/input/touchscreen/goodix.c
+++ b/drivers/input/touchscreen/goodix.c
@@ -384,6 +384,7 @@ static const struct i2c_device_id goodix_ts_id[] = {
 	{ "GDIX1001:00", 0 },
 	{ }
 };
+MODULE_DEVICE_TABLE(i2c, goodix_ts_id);
 
 #ifdef CONFIG_ACPI
 static const struct acpi_device_id goodix_acpi_match[] = {
-- 
cgit v1.2.3


From 02d9bd05dcf77bed954ed21b2d4c330879fa3103 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier@osg.samsung.com>
Date: Thu, 30 Jul 2015 10:39:28 -0700
Subject: Input: touchscreen - export OF module alias information

The I2C core always reports the MODALIAS uevent as "i2c:<client name"
regardless if the driver was matched using the I2C id_table or the
of_match_table. So technically there's no need for a driver to export
the OF table since currently it's not used.

In fact, the I2C device ID table is mandatory for I2C drivers since
a i2c_device_id is passed to the driver's probe function even if the
I2C core used the OF table to match the driver.

And since the I2C core uses different tables, OF-only drivers needs to
have duplicated data that has to be kept in sync and also the dev node
compatible manufacturer prefix is stripped when reporting the MODALIAS.

To avoid the above, the I2C core behavior may be changed in the future
to not require an I2C device table for OF-only drivers and report the
OF module alias. So, it's better to also export the OF table to prevent
breaking module autoloading if that happens.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/egalax_ts.c | 1 +
 drivers/input/touchscreen/mms114.c    | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/input/touchscreen/egalax_ts.c b/drivers/input/touchscreen/egalax_ts.c
index 7bce2d90ec74..1afc08b08155 100644
--- a/drivers/input/touchscreen/egalax_ts.c
+++ b/drivers/input/touchscreen/egalax_ts.c
@@ -264,6 +264,7 @@ static const struct of_device_id egalax_ts_dt_ids[] = {
 	{ .compatible = "eeti,egalax_ts" },
 	{ /* sentinel */ }
 };
+MODULE_DEVICE_TABLE(of, egalax_ts_dt_ids);
 
 static struct i2c_driver egalax_ts_driver = {
 	.driver = {
diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c
index 6b69f461733c..7cce87650fc8 100644
--- a/drivers/input/touchscreen/mms114.c
+++ b/drivers/input/touchscreen/mms114.c
@@ -572,6 +572,7 @@ static const struct of_device_id mms114_dt_match[] = {
 	{ .compatible = "melfas,mms114" },
 	{ }
 };
+MODULE_DEVICE_TABLE(of, mms114_dt_match);
 #endif
 
 static struct i2c_driver mms114_driver = {
-- 
cgit v1.2.3


From 36e9615bd70dc8cd5d7d4831943f788f5231350f Mon Sep 17 00:00:00 2001
From: Dudley Du <dudl@cypress.com>
Date: Thu, 30 Jul 2015 11:19:18 -0700
Subject: Input: cyapa - add regulator vcc support

We need to power up the chip before we can initialize it.

On systems that delegate task of powering up regulators to firmware we
assume that we'll be simply given a dummy regulator.

Signed-off-by: Dudley Du <dudl@cypress.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/mouse/cyapa.c | 29 +++++++++++++++++++++++++++++
 drivers/input/mouse/cyapa.h |  1 +
 2 files changed, 30 insertions(+)

diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c
index 6195ccb3cfde..1479ca996647 100644
--- a/drivers/input/mouse/cyapa.c
+++ b/drivers/input/mouse/cyapa.c
@@ -21,6 +21,7 @@
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
+#include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 #include <linux/uaccess.h>
 #include <linux/pm_runtime.h>
@@ -1241,6 +1242,13 @@ static void cyapa_remove_sysfs_group(void *data)
 	sysfs_remove_group(&cyapa->client->dev.kobj, &cyapa_sysfs_group);
 }
 
+static void cyapa_disable_regulator(void *data)
+{
+	struct cyapa *cyapa = data;
+
+	regulator_disable(cyapa->vcc);
+}
+
 static int cyapa_probe(struct i2c_client *client,
 		       const struct i2c_device_id *dev_id)
 {
@@ -1274,6 +1282,27 @@ static int cyapa_probe(struct i2c_client *client,
 	sprintf(cyapa->phys, "i2c-%d-%04x/input0", client->adapter->nr,
 		client->addr);
 
+	cyapa->vcc = devm_regulator_get(dev, "vcc");
+	if (IS_ERR(cyapa->vcc)) {
+		error = PTR_ERR(cyapa->vcc);
+		dev_err(dev, "failed to get vcc regulator: %d\n", error);
+		return error;
+	}
+
+	error = regulator_enable(cyapa->vcc);
+	if (error) {
+		dev_err(dev, "failed to enable regulator: %d\n", error);
+		return error;
+	}
+
+	error = devm_add_action(dev, cyapa_disable_regulator, cyapa);
+	if (error) {
+		cyapa_disable_regulator(cyapa);
+		dev_err(dev, "failed to add disable regulator action: %d\n",
+			error);
+		return error;
+	}
+
 	error = cyapa_initialize(cyapa);
 	if (error) {
 		dev_err(dev, "failed to detect and initialize tp device.\n");
diff --git a/drivers/input/mouse/cyapa.h b/drivers/input/mouse/cyapa.h
index af1253640590..b812bba8cdd7 100644
--- a/drivers/input/mouse/cyapa.h
+++ b/drivers/input/mouse/cyapa.h
@@ -321,6 +321,7 @@ struct cyapa {
 	u8 status[BL_STATUS_SIZE];
 	bool operational; /* true: ready for data reporting; false: not. */
 
+	struct regulator *vcc;
 	struct i2c_client *client;
 	struct input_dev *input;
 	char phys[32];	/* Device physical location */
-- 
cgit v1.2.3


From ddbb299db0e040aca8e26361ab778224eeacf9d3 Mon Sep 17 00:00:00 2001
From: Dudley Du <dudl@cypress.com>
Date: Thu, 30 Jul 2015 11:24:16 -0700
Subject: Input: cyapa - introduce device tree binding

Add device tree support for  Cypress trackpad devices.

Signed-off-by: Dudley Du <dudl@cypress.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 .../devicetree/bindings/input/cypress,cyapa.txt    | 44 ++++++++++++++++++++++
 .../devicetree/bindings/vendor-prefixes.txt        |  1 +
 drivers/input/mouse/cyapa.c                        | 10 +++++
 3 files changed, 55 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/cypress,cyapa.txt

diff --git a/Documentation/devicetree/bindings/input/cypress,cyapa.txt b/Documentation/devicetree/bindings/input/cypress,cyapa.txt
new file mode 100644
index 000000000000..635a3b036630
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/cypress,cyapa.txt
@@ -0,0 +1,44 @@
+Cypress I2C Touchpad
+
+Required properties:
+- compatible: must be "cypress,cyapa".
+- reg: I2C address of the chip.
+- interrupt-parent: a phandle for the interrupt controller (see interrupt
+	binding[0]).
+- interrupts: interrupt to which the chip is connected (see interrupt
+	binding[0]).
+
+Optional properties:
+- wakeup-source: touchpad can be used as a wakeup source.
+- pinctrl-names: should be "default" (see pinctrl binding [1]).
+- pinctrl-0: a phandle pointing to the pin settings for the device (see
+	pinctrl binding [1]).
+- vcc-supply: a phandle for the regulator supplying 3.3V power.
+
+[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+[1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
+
+Example:
+	&i2c0 {
+		/* ... */
+
+		/* Cypress Gen3 touchpad */
+		touchpad@67 {
+			compatible = "cypress,cyapa";
+			reg = <0x24>;
+			interrupt-parent = <&gpio>;
+			interrupts = <2 IRQ_TYPE_EDGE_FALLING>;	/* GPIO 2 */
+			wakeup-source;
+		};
+
+		/* Cypress Gen5 and later touchpad */
+		touchpad@24 {
+			compatible = "cypress,cyapa";
+			reg = <0x24>;
+			interrupt-parent = <&gpio>;
+			interrupts = <2 IRQ_TYPE_EDGE_FALLING>;	/* GPIO 2 */
+			wakeup-source;
+		};
+
+		/* ... */
+	};
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index d444757c4d9e..57c0f5f8839c 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -54,6 +54,7 @@ cortina	Cortina Systems, Inc.
 cosmic	Cosmic Circuits
 crystalfontz	Crystalfontz America, Inc.
 cubietech	Cubietech, Ltd.
+cypress	Cypress Semiconductor Corporation
 dallas	Maxim Integrated Products (formerly Dallas Semiconductor)
 davicom	DAVICOM Semiconductor, Inc.
 delta	Delta Electronics, Inc.
diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c
index 1479ca996647..eb76b61418f3 100644
--- a/drivers/input/mouse/cyapa.c
+++ b/drivers/input/mouse/cyapa.c
@@ -26,6 +26,7 @@
 #include <linux/uaccess.h>
 #include <linux/pm_runtime.h>
 #include <linux/acpi.h>
+#include <linux/of.h>
 #include "cyapa.h"
 
 
@@ -1487,11 +1488,20 @@ static const struct acpi_device_id cyapa_acpi_id[] = {
 MODULE_DEVICE_TABLE(acpi, cyapa_acpi_id);
 #endif
 
+#ifdef CONFIG_OF
+static const struct of_device_id cyapa_of_match[] = {
+	{ .compatible = "cypress,cyapa" },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, cyapa_of_match);
+#endif
+
 static struct i2c_driver cyapa_driver = {
 	.driver = {
 		.name = "cyapa",
 		.pm = &cyapa_pm_ops,
 		.acpi_match_table = ACPI_PTR(cyapa_acpi_id),
+		.of_match_table = of_match_ptr(cyapa_of_match),
 	},
 
 	.probe = cyapa_probe,
-- 
cgit v1.2.3


From 0642ffd6a864629c12a4cd7528782ed5b68ac69c Mon Sep 17 00:00:00 2001
From: Dudley Du <dudl@cypress.com>
Date: Thu, 30 Jul 2015 11:26:39 -0700
Subject: Input: cyapa - do not try to enable proximity reporting on older
 devices

Avoid the driver generate warning message when the cyapa driver working
with the old Gen5 trackpad device which does not support the proximity
function.  Those old Gen5 trackpad device all have the platform version
less than 2.

Signed-off-by: Dudley Du <dudl@cypress.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/mouse/cyapa_gen5.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/input/mouse/cyapa_gen5.c b/drivers/input/mouse/cyapa_gen5.c
index 6d7abbed67e4..118ba977181e 100644
--- a/drivers/input/mouse/cyapa_gen5.c
+++ b/drivers/input/mouse/cyapa_gen5.c
@@ -2519,10 +2519,13 @@ static int cyapa_gen5_do_operational_check(struct cyapa *cyapa)
 				__func__);
 
 		/* By default, the trackpad proximity function is enabled. */
-		error = cyapa_pip_set_proximity(cyapa, true);
-		if (error)
-			dev_warn(dev, "%s: failed to enable proximity.\n",
-				__func__);
+		if (cyapa->platform_ver >= 2) {
+			error = cyapa_pip_set_proximity(cyapa, true);
+			if (error)
+				dev_warn(dev,
+					"%s: failed to enable proximity.\n",
+					__func__);
+		}
 
 		/* Get trackpad product information. */
 		error = cyapa_gen5_get_query_data(cyapa);
-- 
cgit v1.2.3


From 62f46669688bf13643b91bbc30f19da1095a5ed6 Mon Sep 17 00:00:00 2001
From: Dirk Behme <dirk.behme@de.bosch.com>
Date: Mon, 3 Aug 2015 13:03:09 -0700
Subject: Input: zforce - make the interrupt GPIO optional

Add support for hardware which uses an I2C Serializer / Deserializer
(SerDes) to communicate with the zFroce touch driver. In this case the
SerDes will be configured as an interrupt controller and the zForce driver
will have no access to poll the GPIO line.

To support this, we add two dedicated new GPIOs in the device tree:
reset-gpios and irq-gpios, with the irq-gpios being optional.

To not break the existing device trees, the index based 'gpios' entries
are still supported, but marked as deprecated.

With this, if the interrupt GPIO is available, either via the old or new
device tree style, the while loop will read and handle the packets as long
as the GPIO indicates that the interrupt is asserted (existing, unchanged
driver behavior).

If the interrupt GPIO isn't available, i.e. not configured via the new
device tree style, we are falling back to one read per ISR invocation
(new behavior to support the SerDes).

Note that the gpiod functions help to handle the optional GPIO:
devm_gpiod_get_index_optional() will return NULL in case the interrupt
GPIO isn't available. And gpiod_get_value_cansleep() does cover this, too,
by returning 0 in this case.

Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Reviewed-by: Heiko Stuebner <heiko.stuebner@bq.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 .../bindings/input/touchscreen/zforce_ts.txt       |  8 +--
 drivers/input/touchscreen/zforce_ts.c              | 63 +++++++++++++++++-----
 2 files changed, 53 insertions(+), 18 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/zforce_ts.txt b/Documentation/devicetree/bindings/input/touchscreen/zforce_ts.txt
index 80c37df940a7..e3c27c4fd9c8 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/zforce_ts.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/zforce_ts.txt
@@ -4,12 +4,12 @@ Required properties:
 - compatible: must be "neonode,zforce"
 - reg: I2C address of the chip
 - interrupts: interrupt to which the chip is connected
-- gpios: gpios the chip is connected to
-  first one is the interrupt gpio and second one the reset gpio
+- reset-gpios: reset gpio the chip is connected to
 - x-size: horizontal resolution of touchscreen
 - y-size: vertical resolution of touchscreen
 
 Optional properties:
+- irq-gpios : interrupt gpio the chip is connected to
 - vdd-supply: Regulator controlling the controller supply
 
 Example:
@@ -23,8 +23,8 @@ Example:
 			interrupts = <2 0>;
 			vdd-supply = <&reg_zforce_vdd>;
 
-			gpios = <&gpio5 6 0>, /* INT */
-				<&gpio5 9 0>; /* RST */
+			reset-gpios = <&gpio5 9 0>; /* RST */
+			irq-gpios = <&gpio5 6 0>; /* IRQ, optional */
 
 			x-size = <800>;
 			y-size = <600>;
diff --git a/drivers/input/touchscreen/zforce_ts.c b/drivers/input/touchscreen/zforce_ts.c
index 0aa934c3540e..781d0f83050a 100644
--- a/drivers/input/touchscreen/zforce_ts.c
+++ b/drivers/input/touchscreen/zforce_ts.c
@@ -510,7 +510,16 @@ static irqreturn_t zforce_irq_thread(int irq, void *dev_id)
 	if (!ts->suspending && device_may_wakeup(&client->dev))
 		pm_stay_awake(&client->dev);
 
-	while (gpiod_get_value_cansleep(ts->gpio_int)) {
+	/*
+	 * Run at least once and exit the loop if
+	 * - the optional interrupt GPIO isn't specified
+	 *   (there is only one packet read per ISR invocation, then)
+	 * or
+	 * - the GPIO isn't active any more
+	 *   (packet read until the level GPIO indicates that there is
+	 *    no IRQ any more)
+	 */
+	do {
 		ret = zforce_read_packet(ts, payload_buffer);
 		if (ret < 0) {
 			dev_err(&client->dev,
@@ -577,7 +586,7 @@ static irqreturn_t zforce_irq_thread(int irq, void *dev_id)
 				payload[RESPONSE_ID]);
 			break;
 		}
-	}
+	} while (gpiod_get_value_cansleep(ts->gpio_int));
 
 	if (!ts->suspending && device_may_wakeup(&client->dev))
 		pm_relax(&client->dev);
@@ -754,18 +763,8 @@ static int zforce_probe(struct i2c_client *client,
 	if (!ts)
 		return -ENOMEM;
 
-	/* INT GPIO */
-	ts->gpio_int = devm_gpiod_get_index(&client->dev, NULL, 0, GPIOD_IN);
-	if (IS_ERR(ts->gpio_int)) {
-		ret = PTR_ERR(ts->gpio_int);
-		dev_err(&client->dev,
-			"failed to request interrupt GPIO: %d\n", ret);
-		return ret;
-	}
-
-	/* RST GPIO */
-	ts->gpio_rst = devm_gpiod_get_index(&client->dev, NULL, 1,
-					    GPIOD_OUT_HIGH);
+	ts->gpio_rst = devm_gpiod_get_optional(&client->dev, "reset",
+					       GPIOD_OUT_HIGH);
 	if (IS_ERR(ts->gpio_rst)) {
 		ret = PTR_ERR(ts->gpio_rst);
 		dev_err(&client->dev,
@@ -773,6 +772,42 @@ static int zforce_probe(struct i2c_client *client,
 		return ret;
 	}
 
+	if (ts->gpio_rst) {
+		ts->gpio_int = devm_gpiod_get_optional(&client->dev, "irq",
+						       GPIOD_IN);
+		if (IS_ERR(ts->gpio_int)) {
+			ret = PTR_ERR(ts->gpio_int);
+			dev_err(&client->dev,
+				"failed to request interrupt GPIO: %d\n", ret);
+			return ret;
+		}
+	} else {
+		/*
+		 * Deprecated GPIO handling for compatibility
+		 * with legacy binding.
+		 */
+
+		/* INT GPIO */
+		ts->gpio_int = devm_gpiod_get_index(&client->dev, NULL, 0,
+						    GPIOD_IN);
+		if (IS_ERR(ts->gpio_int)) {
+			ret = PTR_ERR(ts->gpio_int);
+			dev_err(&client->dev,
+				"failed to request interrupt GPIO: %d\n", ret);
+			return ret;
+		}
+
+		/* RST GPIO */
+		ts->gpio_rst = devm_gpiod_get_index(&client->dev, NULL, 1,
+					    GPIOD_OUT_HIGH);
+		if (IS_ERR(ts->gpio_rst)) {
+			ret = PTR_ERR(ts->gpio_rst);
+			dev_err(&client->dev,
+				"failed to request reset GPIO: %d\n", ret);
+			return ret;
+		}
+	}
+
 	ts->reg_vdd = devm_regulator_get_optional(&client->dev, "vdd");
 	if (IS_ERR(ts->reg_vdd)) {
 		ret = PTR_ERR(ts->reg_vdd);
-- 
cgit v1.2.3


From 7d6548abcf4ea4845db8a62a5875d93e2c1bf882 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 4 Aug 2015 11:43:40 -0700
Subject: Input: Allow compile test of GPIO consumers if !GPIOLIB

The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is
not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer
functionality only, can still be compiled if GPIOLIB is not enabled.

Relax the dependency on GPIOLIB if COMPILE_TEST is enabled, where
appropriate.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/keyboard/Kconfig    |  4 ++--
 drivers/input/misc/Kconfig        | 11 ++++++-----
 drivers/input/mouse/Kconfig       |  2 +-
 drivers/input/touchscreen/Kconfig |  8 ++++----
 4 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 4cd94fd6cbad..10dfa23b11a8 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -187,7 +187,7 @@ config KEYBOARD_EP93XX
 
 config KEYBOARD_GPIO
 	tristate "GPIO Buttons"
-	depends on GPIOLIB
+	depends on GPIOLIB || COMPILE_TEST
 	help
 	  This driver implements support for buttons connected
 	  to GPIO pins of various CPUs (and some other chips).
@@ -253,7 +253,7 @@ config KEYBOARD_TCA8418
 
 config KEYBOARD_MATRIX
 	tristate "GPIO driven matrix keypad support"
-	depends on GPIOLIB
+	depends on GPIOLIB || COMPILE_TEST
 	select INPUT_MATRIXKMAP
 	help
 	  Enable support for GPIO driven matrix keypad.
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index d4f0a817e858..dade381c7da8 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -259,7 +259,7 @@ config INPUT_APANEL
 config INPUT_GP2A
 	tristate "Sharp GP2AP002A00F I2C Proximity/Opto sensor driver"
 	depends on I2C
-	depends on GPIOLIB
+	depends on GPIOLIB || COMPILE_TEST
 	help
 	  Say Y here if you have a Sharp GP2AP002A00F proximity/als combo-chip
 	  hooked to an I2C bus.
@@ -269,7 +269,7 @@ config INPUT_GP2A
 
 config INPUT_GPIO_BEEPER
 	tristate "Generic GPIO Beeper support"
-	depends on GPIOLIB
+	depends on GPIOLIB || COMPILE_TEST
 	help
 	  Say Y here if you have a beeper connected to a GPIO pin.
 
@@ -278,7 +278,7 @@ config INPUT_GPIO_BEEPER
 
 config INPUT_GPIO_TILT_POLLED
 	tristate "Polled GPIO tilt switch"
-	depends on GPIOLIB
+	depends on GPIOLIB || COMPILE_TEST
 	select INPUT_POLLDEV
 	help
 	  This driver implements support for tilt switches connected
@@ -569,7 +569,7 @@ config INPUT_PWM_BEEPER
 
 config INPUT_GPIO_ROTARY_ENCODER
 	tristate "Rotary encoders connected to GPIO pins"
-	depends on GPIOLIB
+	depends on GPIOLIB || COMPILE_TEST
 	help
 	  Say Y here to add support for rotary encoders connected to GPIO lines.
 	  Check file:Documentation/input/rotary-encoder.txt for more
@@ -776,7 +776,8 @@ config INPUT_SOC_BUTTON_ARRAY
 
 config INPUT_DRV260X_HAPTICS
 	tristate "TI DRV260X haptics support"
-	depends on INPUT && I2C && GPIOLIB
+	depends on INPUT && I2C
+	depends on GPIOLIB || COMPILE_TEST
 	select INPUT_FF_MEMLESS
 	select REGMAP_I2C
 	help
diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
index d7820d1152d2..17f97e5e11e7 100644
--- a/drivers/input/mouse/Kconfig
+++ b/drivers/input/mouse/Kconfig
@@ -341,7 +341,7 @@ config MOUSE_VSXXXAA
 
 config MOUSE_GPIO
 	tristate "GPIO mouse"
-	depends on GPIOLIB
+	depends on GPIOLIB || COMPILE_TEST
 	select INPUT_POLLDEV
 	help
 	  This driver simulates a mouse on GPIO lines of various CPUs (and some
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 860d426c480e..059edeb7f04a 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -118,7 +118,7 @@ config TOUCHSCREEN_ATMEL_MXT
 config TOUCHSCREEN_AUO_PIXCIR
 	tristate "AUO in-cell touchscreen using Pixcir ICs"
 	depends on I2C
-	depends on GPIOLIB
+	depends on GPIOLIB || COMPILE_TEST
 	help
 	  Say Y here if you have a AUO display with in-cell touchscreen
 	  using Pixcir ICs.
@@ -142,7 +142,7 @@ config TOUCHSCREEN_BU21013
 
 config TOUCHSCREEN_CHIPONE_ICN8318
 	tristate "chipone icn8318 touchscreen controller"
-	depends on GPIOLIB
+	depends on GPIOLIB || COMPILE_TEST
 	depends on I2C
 	depends on OF
 	help
@@ -156,7 +156,7 @@ config TOUCHSCREEN_CHIPONE_ICN8318
 config TOUCHSCREEN_CY8CTMG110
 	tristate "cy8ctmg110 touchscreen"
 	depends on I2C
-	depends on GPIOLIB
+	depends on GPIOLIB || COMPILE_TEST
 	help
 	  Say Y here if you have a cy8ctmg110 capacitive touchscreen on
 	  an AAVA device.
@@ -1030,7 +1030,7 @@ config TOUCHSCREEN_TPS6507X
 config TOUCHSCREEN_ZFORCE
 	tristate "Neonode zForce infrared touchscreens"
 	depends on I2C
-	depends on GPIOLIB
+	depends on GPIOLIB || COMPILE_TEST
 	help
 	  Say Y here if you have a touchscreen using the zforce
 	  infraread technology from Neonode.
-- 
cgit v1.2.3


From 7f3884f7de89c49439fdaa115f6d1caec3256cc3 Mon Sep 17 00:00:00 2001
From: Nick Dyer <nick.dyer@itdev.co.uk>
Date: Tue, 4 Aug 2015 16:36:29 -0700
Subject: Input: atmel_mxt_ts - use deep sleep mode when stopped

The hardcoded 0x83 CTRL setting overrides other settings in that byte,
enabling extra reporting that may not be useful on a particular platform.

Implement improved suspend mechanism via deep sleep. By writing zero to
both the active and idle cycle times the maXTouch device can be put into a
deep sleep mode, using minimal power. It is necessary to issue a calibrate
command after the chip has spent any time in deep sleep, however a soft
reset is unnecessary.

Use the old method on Chromebook Pixel via platform data option.

This patch also deals with the situation where the power configuration is
zero on probe, which would mean that the device never wakes up to execute
commands.

After a config download, the T7 power configuration may have changed so it
is necessary to re-read it.

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Acked-by: Benson Leung <bleung@chromium.org>
Acked-by: Yufeng Shen <miletus@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/atmel_mxt_ts.c   | 119 ++++++++++++++++++++++++++---
 drivers/platform/chrome/chromeos_laptop.c  |   4 +-
 include/linux/i2c/atmel_mxt_ts.h           |  25 ------
 include/linux/platform_data/atmel_mxt_ts.h |  31 ++++++++
 4 files changed, 142 insertions(+), 37 deletions(-)
 delete mode 100644 include/linux/i2c/atmel_mxt_ts.h
 create mode 100644 include/linux/platform_data/atmel_mxt_ts.h

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 8efe7a002f1e..0e743b3a691b 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -22,7 +22,7 @@
 #include <linux/delay.h>
 #include <linux/firmware.h>
 #include <linux/i2c.h>
-#include <linux/i2c/atmel_mxt_ts.h>
+#include <linux/platform_data/atmel_mxt_ts.h>
 #include <linux/input/mt.h>
 #include <linux/interrupt.h>
 #include <linux/of.h>
@@ -103,9 +103,13 @@
 #define MXT_T6_STATUS_COMSERR	(1 << 2)
 
 /* MXT_GEN_POWER_T7 field */
-#define MXT_POWER_IDLEACQINT	0
-#define MXT_POWER_ACTVACQINT	1
-#define MXT_POWER_ACTV2IDLETO	2
+struct t7_config {
+	u8 idle;
+	u8 active;
+} __packed;
+
+#define MXT_POWER_CFG_RUN		0
+#define MXT_POWER_CFG_DEEPSLEEP		1
 
 /* MXT_GEN_ACQUIRE_T8 field */
 #define MXT_ACQUIRE_CHRGTIME	0
@@ -117,7 +121,7 @@
 #define MXT_ACQUIRE_ATCHCALSTHR	7
 
 /* MXT_TOUCH_MULTI_T9 field */
-#define MXT_TOUCH_CTRL		0
+#define MXT_T9_CTRL		0
 #define MXT_T9_ORIENT		9
 #define MXT_T9_RANGE		18
 
@@ -291,6 +295,7 @@ struct mxt_data {
 	u8 last_message_count;
 	u8 num_touchids;
 	u8 multitouch;
+	struct t7_config t7_cfg;
 
 	/* Cached parameters from object table */
 	u16 T5_address;
@@ -1361,6 +1366,8 @@ static int mxt_upload_cfg_mem(struct mxt_data *data, unsigned int cfg_start,
 	return 0;
 }
 
+static int mxt_init_t7_power_cfg(struct mxt_data *data);
+
 /*
  * mxt_update_cfg - download configuration to chip
  *
@@ -1508,6 +1515,9 @@ static int mxt_update_cfg(struct mxt_data *data, const struct firmware *cfg)
 
 	dev_info(dev, "Config successfully updated\n");
 
+	/* T7 config may have changed */
+	mxt_init_t7_power_cfg(data);
+
 release_mem:
 	kfree(config_mem);
 	return ret;
@@ -2051,6 +2061,60 @@ err_free_object_table:
 	return error;
 }
 
+static int mxt_set_t7_power_cfg(struct mxt_data *data, u8 sleep)
+{
+	struct device *dev = &data->client->dev;
+	int error;
+	struct t7_config *new_config;
+	struct t7_config deepsleep = { .active = 0, .idle = 0 };
+
+	if (sleep == MXT_POWER_CFG_DEEPSLEEP)
+		new_config = &deepsleep;
+	else
+		new_config = &data->t7_cfg;
+
+	error = __mxt_write_reg(data->client, data->T7_address,
+				sizeof(data->t7_cfg), new_config);
+	if (error)
+		return error;
+
+	dev_dbg(dev, "Set T7 ACTV:%d IDLE:%d\n",
+		new_config->active, new_config->idle);
+
+	return 0;
+}
+
+static int mxt_init_t7_power_cfg(struct mxt_data *data)
+{
+	struct device *dev = &data->client->dev;
+	int error;
+	bool retry = false;
+
+recheck:
+	error = __mxt_read_reg(data->client, data->T7_address,
+				sizeof(data->t7_cfg), &data->t7_cfg);
+	if (error)
+		return error;
+
+	if (data->t7_cfg.active == 0 || data->t7_cfg.idle == 0) {
+		if (!retry) {
+			dev_dbg(dev, "T7 cfg zero, resetting\n");
+			mxt_soft_reset(data);
+			retry = true;
+			goto recheck;
+		} else {
+			dev_dbg(dev, "T7 cfg zero after reset, overriding\n");
+			data->t7_cfg.active = 20;
+			data->t7_cfg.idle = 100;
+			return mxt_set_t7_power_cfg(data, MXT_POWER_CFG_RUN);
+		}
+	}
+
+	dev_dbg(dev, "Initialized power cfg: ACTV %d, IDLE %d\n",
+		data->t7_cfg.active, data->t7_cfg.idle);
+	return 0;
+}
+
 static int mxt_configure_objects(struct mxt_data *data,
 				 const struct firmware *cfg)
 {
@@ -2058,6 +2122,12 @@ static int mxt_configure_objects(struct mxt_data *data,
 	struct mxt_info *info = &data->info;
 	int error;
 
+	error = mxt_init_t7_power_cfg(data);
+	if (error) {
+		dev_err(dev, "Failed to initialize power cfg\n");
+		return error;
+	}
+
 	if (cfg) {
 		error = mxt_update_cfg(data, cfg);
 		if (error)
@@ -2346,14 +2416,41 @@ static const struct attribute_group mxt_attr_group = {
 
 static void mxt_start(struct mxt_data *data)
 {
-	/* Touch enable */
-	mxt_write_object(data, data->multitouch, MXT_TOUCH_CTRL, 0x83);
+	switch (data->pdata->suspend_mode) {
+	case MXT_SUSPEND_T9_CTRL:
+		mxt_soft_reset(data);
+
+		/* Touch enable */
+		/* 0x83 = SCANEN | RPTEN | ENABLE */
+		mxt_write_object(data,
+				MXT_TOUCH_MULTI_T9, MXT_T9_CTRL, 0x83);
+		break;
+
+	case MXT_SUSPEND_DEEP_SLEEP:
+	default:
+		mxt_set_t7_power_cfg(data, MXT_POWER_CFG_RUN);
+
+		/* Recalibrate since chip has been in deep sleep */
+		mxt_t6_command(data, MXT_COMMAND_CALIBRATE, 1, false);
+		break;
+	}
+
 }
 
 static void mxt_stop(struct mxt_data *data)
 {
-	/* Touch disable */
-	mxt_write_object(data, data->multitouch, MXT_TOUCH_CTRL, 0);
+	switch (data->pdata->suspend_mode) {
+	case MXT_SUSPEND_T9_CTRL:
+		/* Touch disable */
+		mxt_write_object(data,
+				MXT_TOUCH_MULTI_T9, MXT_T9_CTRL, 0);
+		break;
+
+	case MXT_SUSPEND_DEEP_SLEEP:
+	default:
+		mxt_set_t7_power_cfg(data, MXT_POWER_CFG_DEEPSLEEP);
+		break;
+	}
 }
 
 static int mxt_input_open(struct input_dev *dev)
@@ -2409,6 +2506,8 @@ static const struct mxt_platform_data *mxt_parse_dt(struct i2c_client *client)
 		pdata->t19_keymap = keymap;
 	}
 
+	pdata->suspend_mode = MXT_SUSPEND_DEEP_SLEEP;
+
 	return pdata;
 }
 #else
@@ -2625,8 +2724,6 @@ static int __maybe_unused mxt_resume(struct device *dev)
 	struct mxt_data *data = i2c_get_clientdata(client);
 	struct input_dev *input_dev = data->input_dev;
 
-	mxt_soft_reset(data);
-
 	mutex_lock(&input_dev->mutex);
 
 	if (input_dev->users)
diff --git a/drivers/platform/chrome/chromeos_laptop.c b/drivers/platform/chrome/chromeos_laptop.c
index a04019ab9feb..02072749fff3 100644
--- a/drivers/platform/chrome/chromeos_laptop.c
+++ b/drivers/platform/chrome/chromeos_laptop.c
@@ -23,7 +23,7 @@
 
 #include <linux/dmi.h>
 #include <linux/i2c.h>
-#include <linux/i2c/atmel_mxt_ts.h>
+#include <linux/platform_data/atmel_mxt_ts.h>
 #include <linux/input.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
@@ -111,6 +111,7 @@ static struct mxt_platform_data atmel_224s_tp_platform_data = {
 	.irqflags		= IRQF_TRIGGER_FALLING,
 	.t19_num_keys		= ARRAY_SIZE(mxt_t19_keys),
 	.t19_keymap		= mxt_t19_keys,
+	.suspend_mode		= MXT_SUSPEND_T9_CTRL,
 };
 
 static struct i2c_board_info atmel_224s_tp_device = {
@@ -121,6 +122,7 @@ static struct i2c_board_info atmel_224s_tp_device = {
 
 static struct mxt_platform_data atmel_1664s_platform_data = {
 	.irqflags		= IRQF_TRIGGER_FALLING,
+	.suspend_mode		= MXT_SUSPEND_T9_CTRL,
 };
 
 static struct i2c_board_info atmel_1664s_device = {
diff --git a/include/linux/i2c/atmel_mxt_ts.h b/include/linux/i2c/atmel_mxt_ts.h
deleted file mode 100644
index 02bf6ea31701..000000000000
--- a/include/linux/i2c/atmel_mxt_ts.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Atmel maXTouch Touchscreen driver
- *
- * Copyright (C) 2010 Samsung Electronics Co.Ltd
- * Author: Joonyoung Shim <jy0922.shim@samsung.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;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-
-#ifndef __LINUX_ATMEL_MXT_TS_H
-#define __LINUX_ATMEL_MXT_TS_H
-
-#include <linux/types.h>
-
-/* The platform data for the Atmel maXTouch touchscreen driver */
-struct mxt_platform_data {
-	unsigned long irqflags;
-	u8 t19_num_keys;
-	const unsigned int *t19_keymap;
-};
-
-#endif /* __LINUX_ATMEL_MXT_TS_H */
diff --git a/include/linux/platform_data/atmel_mxt_ts.h b/include/linux/platform_data/atmel_mxt_ts.h
new file mode 100644
index 000000000000..695035a8d7fb
--- /dev/null
+++ b/include/linux/platform_data/atmel_mxt_ts.h
@@ -0,0 +1,31 @@
+/*
+ * Atmel maXTouch Touchscreen driver
+ *
+ * Copyright (C) 2010 Samsung Electronics Co.Ltd
+ * Author: Joonyoung Shim <jy0922.shim@samsung.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;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __LINUX_PLATFORM_DATA_ATMEL_MXT_TS_H
+#define __LINUX_PLATFORM_DATA_ATMEL_MXT_TS_H
+
+#include <linux/types.h>
+
+enum mxt_suspend_mode {
+	MXT_SUSPEND_DEEP_SLEEP	= 0,
+	MXT_SUSPEND_T9_CTRL	= 1,
+};
+
+/* The platform data for the Atmel maXTouch touchscreen driver */
+struct mxt_platform_data {
+	unsigned long irqflags;
+	u8 t19_num_keys;
+	const unsigned int *t19_keymap;
+	enum mxt_suspend_mode suspend_mode;
+};
+
+#endif /* __LINUX_PLATFORM_DATA_ATMEL_MXT_TS_H */
-- 
cgit v1.2.3


From 146c6a662f6b16536581afc8ed4c11460301a82d Mon Sep 17 00:00:00 2001
From: Nick Dyer <nick.dyer@itdev.co.uk>
Date: Tue, 4 Aug 2015 16:49:34 -0700
Subject: Input: atmel_mxt_ts - remove unused defines

Many of these values are out of date and they aren't used in the driver
- all they do is increase the size of the kernel source.

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Acked-by: Benson Leung <bleung@chromium.org>
Acked-by: Yufeng Shen <miletus@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/atmel_mxt_ts.c | 66 +-------------------------------
 1 file changed, 1 insertion(+), 65 deletions(-)

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 0e743b3a691b..d53d4ac57f33 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -29,27 +29,13 @@
 #include <linux/slab.h>
 #include <asm/unaligned.h>
 
-/* Version */
-#define MXT_VER_20		20
-#define MXT_VER_21		21
-#define MXT_VER_22		22
-
 /* Firmware files */
 #define MXT_FW_NAME		"maxtouch.fw"
 #define MXT_CFG_NAME		"maxtouch.cfg"
 #define MXT_CFG_MAGIC		"OBP_RAW V1"
 
 /* Registers */
-#define MXT_INFO		0x00
-#define MXT_FAMILY_ID		0x00
-#define MXT_VARIANT_ID		0x01
-#define MXT_VERSION		0x02
-#define MXT_BUILD		0x03
-#define MXT_MATRIX_X_SIZE	0x04
-#define MXT_MATRIX_Y_SIZE	0x05
-#define MXT_OBJECT_NUM		0x06
 #define MXT_OBJECT_START	0x07
-
 #define MXT_OBJECT_SIZE		6
 #define MXT_INFO_CHECKSUM_SIZE	3
 #define MXT_MAX_BLOCK_WRITE	256
@@ -111,15 +97,6 @@ struct t7_config {
 #define MXT_POWER_CFG_RUN		0
 #define MXT_POWER_CFG_DEEPSLEEP		1
 
-/* MXT_GEN_ACQUIRE_T8 field */
-#define MXT_ACQUIRE_CHRGTIME	0
-#define MXT_ACQUIRE_TCHDRIFT	2
-#define MXT_ACQUIRE_DRIFTST	3
-#define MXT_ACQUIRE_TCHAUTOCAL	4
-#define MXT_ACQUIRE_SYNC	5
-#define MXT_ACQUIRE_ATCHCALST	6
-#define MXT_ACQUIRE_ATCHCALSTHR	7
-
 /* MXT_TOUCH_MULTI_T9 field */
 #define MXT_T9_CTRL		0
 #define MXT_T9_ORIENT		9
@@ -143,51 +120,10 @@ struct t9_range {
 /* MXT_TOUCH_MULTI_T9 orient */
 #define MXT_T9_ORIENT_SWITCH	(1 << 0)
 
-/* MXT_PROCI_GRIPFACE_T20 field */
-#define MXT_GRIPFACE_CTRL	0
-#define MXT_GRIPFACE_XLOGRIP	1
-#define MXT_GRIPFACE_XHIGRIP	2
-#define MXT_GRIPFACE_YLOGRIP	3
-#define MXT_GRIPFACE_YHIGRIP	4
-#define MXT_GRIPFACE_MAXTCHS	5
-#define MXT_GRIPFACE_SZTHR1	7
-#define MXT_GRIPFACE_SZTHR2	8
-#define MXT_GRIPFACE_SHPTHR1	9
-#define MXT_GRIPFACE_SHPTHR2	10
-#define MXT_GRIPFACE_SUPEXTTO	11
-
-/* MXT_PROCI_NOISE field */
-#define MXT_NOISE_CTRL		0
-#define MXT_NOISE_OUTFLEN	1
-#define MXT_NOISE_GCAFUL_LSB	3
-#define MXT_NOISE_GCAFUL_MSB	4
-#define MXT_NOISE_GCAFLL_LSB	5
-#define MXT_NOISE_GCAFLL_MSB	6
-#define MXT_NOISE_ACTVGCAFVALID	7
-#define MXT_NOISE_NOISETHR	8
-#define MXT_NOISE_FREQHOPSCALE	10
-#define MXT_NOISE_FREQ0		11
-#define MXT_NOISE_FREQ1		12
-#define MXT_NOISE_FREQ2		13
-#define MXT_NOISE_FREQ3		14
-#define MXT_NOISE_FREQ4		15
-#define MXT_NOISE_IDLEGCAFVALID	16
-
 /* MXT_SPT_COMMSCONFIG_T18 */
 #define MXT_COMMS_CTRL		0
 #define MXT_COMMS_CMD		1
 
-/* MXT_SPT_CTECONFIG_T28 field */
-#define MXT_CTE_CTRL		0
-#define MXT_CTE_CMD		1
-#define MXT_CTE_MODE		2
-#define MXT_CTE_IDLEGCAFDEPTH	3
-#define MXT_CTE_ACTVGCAFDEPTH	4
-#define MXT_CTE_VOLTAGE		5
-
-#define MXT_VOLTAGE_DEFAULT	2700000
-#define MXT_VOLTAGE_STEP	10000
-
 /* Define for MXT_GEN_COMMAND_T6 */
 #define MXT_BOOT_VALUE		0xa5
 #define MXT_RESET_VALUE		0x01
@@ -1543,7 +1479,7 @@ static int mxt_get_info(struct mxt_data *data)
 	int error;
 
 	/* Read 7-byte info block starting at address 0 */
-	error = __mxt_read_reg(client, MXT_INFO, sizeof(*info), info);
+	error = __mxt_read_reg(client, 0, sizeof(*info), info);
 	if (error)
 		return error;
 
-- 
cgit v1.2.3


From 50fabb02c7c08dace3562c05797a3c92591a9803 Mon Sep 17 00:00:00 2001
From: Pan Xinhui <xinhuix.pan@intel.com>
Date: Tue, 4 Aug 2015 16:53:04 -0700
Subject: Input: atmel_mxt_ts - suspend/resume causes panic if input_dev fails
 to init

input_dev may be NULL if mxt_initialize_input_device fails. But pm ops is
still available and suspend/resume assume
input_dev is not NULL. To fix this issue, we add a check if (!input_dev).

Signed-off-by: Pan Xinhui <xinhuix.pan@intel.com>
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/atmel_mxt_ts.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index d53d4ac57f33..cf66ba1bbf0c 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -2644,6 +2644,9 @@ static int __maybe_unused mxt_suspend(struct device *dev)
 	struct mxt_data *data = i2c_get_clientdata(client);
 	struct input_dev *input_dev = data->input_dev;
 
+	if (!input_dev)
+		return 0;
+
 	mutex_lock(&input_dev->mutex);
 
 	if (input_dev->users)
@@ -2660,6 +2663,9 @@ static int __maybe_unused mxt_resume(struct device *dev)
 	struct mxt_data *data = i2c_get_clientdata(client);
 	struct input_dev *input_dev = data->input_dev;
 
+	if (!input_dev)
+		return 0;
+
 	mutex_lock(&input_dev->mutex);
 
 	if (input_dev->users)
-- 
cgit v1.2.3


From 204476642db2ca3cd2e9b8380b58dc9f21a1e773 Mon Sep 17 00:00:00 2001
From: Nick Dyer <nick.dyer@itdev.co.uk>
Date: Tue, 4 Aug 2015 16:53:16 -0700
Subject: Input: atmel_mxt_ts - improve device tree parsing

Use function rather than loop, define np to reduce wrapping.

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/atmel_mxt_ts.c | 22 +++++++++-------------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index cf66ba1bbf0c..08d9a0921798 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -2409,19 +2409,18 @@ static void mxt_input_close(struct input_dev *dev)
 static const struct mxt_platform_data *mxt_parse_dt(struct i2c_client *client)
 {
 	struct mxt_platform_data *pdata;
+	struct device_node *np = client->dev.of_node;
 	u32 *keymap;
-	u32 keycode;
-	int proplen, i, ret;
+	int proplen, ret;
 
-	if (!client->dev.of_node)
+	if (!np)
 		return ERR_PTR(-ENOENT);
 
 	pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
 	if (!pdata)
 		return ERR_PTR(-ENOMEM);
 
-	if (of_find_property(client->dev.of_node, "linux,gpio-keymap",
-			     &proplen)) {
+	if (of_find_property(np, "linux,gpio-keymap", &proplen)) {
 		pdata->t19_num_keys = proplen / sizeof(u32);
 
 		keymap = devm_kzalloc(&client->dev,
@@ -2430,14 +2429,11 @@ static const struct mxt_platform_data *mxt_parse_dt(struct i2c_client *client)
 		if (!keymap)
 			return ERR_PTR(-ENOMEM);
 
-		for (i = 0; i < pdata->t19_num_keys; i++) {
-			ret = of_property_read_u32_index(client->dev.of_node,
-					"linux,gpio-keymap", i, &keycode);
-			if (ret)
-				keycode = KEY_RESERVED;
-
-			keymap[i] = keycode;
-		}
+		ret = of_property_read_u32_array(np, "linux,gpio-keymap",
+						 keymap, pdata->t19_num_keys);
+		if (ret)
+			dev_warn(&client->dev,
+				 "Couldn't read linux,gpio-keymap: %d\n", ret);
 
 		pdata->t19_keymap = keymap;
 	}
-- 
cgit v1.2.3


From 885f3fb9fa1f9e185e8a4e905157087495734349 Mon Sep 17 00:00:00 2001
From: Nick Dyer <nick.dyer@itdev.co.uk>
Date: Tue, 4 Aug 2015 16:57:25 -0700
Subject: Input: atmel_mxt_ts - disable interrupt for 50ms after reset

The CHG/interrupt line is momentarily set (approximately 100 ms) as an
input after power-up or reset for diagnostic purposes. This may cause
spurious interrupts, so disable interrupt handler during this period.

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/atmel_mxt_ts.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 08d9a0921798..d36da65f8c72 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -1098,7 +1098,9 @@ static int mxt_soft_reset(struct mxt_data *data)
 	struct device *dev = &data->client->dev;
 	int ret = 0;
 
-	dev_info(dev, "Resetting chip\n");
+	dev_info(dev, "Resetting device\n");
+
+	disable_irq(data->irq);
 
 	reinit_completion(&data->reset_completion);
 
@@ -1106,6 +1108,11 @@ static int mxt_soft_reset(struct mxt_data *data)
 	if (ret)
 		return ret;
 
+	/* Ignore CHG line for 100ms after reset */
+	msleep(100);
+
+	enable_irq(data->irq);
+
 	ret = mxt_wait_for_completion(data, &data->reset_completion,
 				      MXT_RESET_TIMEOUT);
 	if (ret)
-- 
cgit v1.2.3


From eafc0c8783f091ae9426fc8288054a99eb39207f Mon Sep 17 00:00:00 2001
From: Nick Dyer <nick.dyer@itdev.co.uk>
Date: Tue, 4 Aug 2015 16:57:40 -0700
Subject: Input: atmel_mxt_ts - initialise input slots with INPUT_MT_DIRECT

This indicates the device coordinates should be directly mapped to screen.
This is valid since scaling/flipping/rotation should be done by configuring
the MXT device.

It also flags to Android using INPUT_PROP_DIRECT that the device should be
treated as a touch screen by default, and removes the necessity for a
default IDC file.

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/atmel_mxt_ts.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index d36da65f8c72..0ea9903dde27 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -1858,6 +1858,8 @@ static int mxt_initialize_input_device(struct mxt_data *data)
 	if (pdata->t19_num_keys) {
 		mxt_set_up_as_touchpad(input_dev, data);
 		mt_flags |= INPUT_MT_POINTER;
+	} else {
+		mt_flags |= INPUT_MT_DIRECT;
 	}
 
 	/* For multi touch */
-- 
cgit v1.2.3


From 507584e202c598b5ba2c3cf5fa283ebbda9edc26 Mon Sep 17 00:00:00 2001
From: Nick Dyer <nick.dyer@itdev.co.uk>
Date: Tue, 4 Aug 2015 16:58:05 -0700
Subject: Input: atmel_mxt_ts - remove warning on zero T44 count

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/atmel_mxt_ts.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 0ea9903dde27..c5622058c22b 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -938,16 +938,15 @@ static irqreturn_t mxt_process_messages_t44(struct mxt_data *data)
 
 	count = data->msg_buf[0];
 
-	if (count == 0) {
-		/*
-		 * This condition is caused by the CHG line being configured
-		 * in Mode 0. It results in unnecessary I2C operations but it
-		 * is benign.
-		 */
-		dev_dbg(dev, "Interrupt triggered but zero messages\n");
+	/*
+	 * This condition may be caused by the CHG line being configured in
+	 * Mode 0. It results in unnecessary I2C operations but it is benign.
+	 */
+	if (count == 0)
 		return IRQ_NONE;
-	} else if (count > data->max_reportid) {
-		dev_err(dev, "T44 count %d exceeded max report id\n", count);
+
+	if (count > data->max_reportid) {
+		dev_warn(dev, "T44 count %d exceeded max report id\n", count);
 		count = data->max_reportid;
 	}
 
-- 
cgit v1.2.3


From a14c0f8fefcb95847fe3a94a4085a7ceb88f19e5 Mon Sep 17 00:00:00 2001
From: Nick Dyer <nick.dyer@itdev.co.uk>
Date: Tue, 4 Aug 2015 16:22:54 -0700
Subject: MAINTAINERS: Add maintainer for atmel_mxt_ts

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 MAINTAINERS | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index a2264167791a..cc3651b282bc 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1915,6 +1915,14 @@ W:	http://atmelwlandriver.sourceforge.net/
 S:	Maintained
 F:	drivers/net/wireless/atmel*
 
+ATMEL MAXTOUCH DRIVER
+M:	Nick Dyer <nick.dyer@itdev.co.uk>
+T:	git git://github.com/atmel-maxtouch/linux.git
+S:	Supported
+F:	Documentation/devicetree/bindings/input/atmel,maxtouch.txt
+F:	drivers/input/touchscreen/atmel_mxt_ts.c
+F:	include/linux/platform_data/atmel_mxt_ts.h
+
 ATTO EXPRESSSAS SAS/SATA RAID SCSI DRIVER
 M:	Bradley Grove <linuxdrivers@attotech.com>
 L:	linux-scsi@vger.kernel.org
-- 
cgit v1.2.3


From 6fd3850227961d70594acd45d146ad28367415b5 Mon Sep 17 00:00:00 2001
From: James Chen <james.chen@emc.com.tw>
Date: Mon, 20 Jul 2015 11:16:36 -0700
Subject: Input: elants_i2c - disable idle mode before updating firmware

If the device is in idle mode and is in the middle of a scan it may not
have a chance to react to the reset and then IAP commands within required
time interval and firmware update may fail. Let's bring the device out of
idle mode before attempting to reset it so that the scan period is smaller
and thus it can react to the command quicker.

Signed-off-by: James Chen <james.chen@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/elants_i2c.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c
index 746137694137..42e43f14602e 100644
--- a/drivers/input/touchscreen/elants_i2c.c
+++ b/drivers/input/touchscreen/elants_i2c.c
@@ -605,6 +605,7 @@ static int elants_i2c_do_update_firmware(struct i2c_client *client,
 	const u8 enter_iap[] = { 0x45, 0x49, 0x41, 0x50 };
 	const u8 enter_iap2[] = { 0x54, 0x00, 0x12, 0x34 };
 	const u8 iap_ack[] = { 0x55, 0xaa, 0x33, 0xcc };
+	const u8 close_idle[] = {0x54, 0x2c, 0x01, 0x01};
 	u8 buf[HEADER_SIZE];
 	u16 send_id;
 	int page, n_fw_pages;
@@ -617,8 +618,13 @@ static int elants_i2c_do_update_firmware(struct i2c_client *client,
 	} else {
 		/* Start IAP Procedure */
 		dev_dbg(&client->dev, "Normal IAP procedure\n");
+		/* Close idle mode */
+		error = elants_i2c_send(client, close_idle, sizeof(close_idle));
+		if (error)
+			dev_err(&client->dev, "Failed close idle: %d\n", error);
+		msleep(60);
 		elants_i2c_sw_reset(client);
-
+		msleep(20);
 		error = elants_i2c_send(client, enter_iap, sizeof(enter_iap));
 	}
 
-- 
cgit v1.2.3


From 00159f19a5057cb779146afce1cceede692af346 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Thu, 6 Aug 2015 19:15:30 -0700
Subject: Input: do not emit unneeded EV_SYN when suspending

Do not emit EV_SYN/SYN_REPORT on suspend if there were no keys that are
still pressed as we are suspending the device (and in all other cases when
input core is forcibly releasing keys via input_dev_release_keys() call).

Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/input.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/input/input.c b/drivers/input/input.c
index 78d24990a816..5391abd28b27 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -674,13 +674,19 @@ EXPORT_SYMBOL(input_close_device);
  */
 static void input_dev_release_keys(struct input_dev *dev)
 {
+	bool need_sync = false;
 	int code;
 
 	if (is_event_supported(EV_KEY, dev->evbit, EV_MAX)) {
-		for_each_set_bit(code, dev->key, KEY_CNT)
+		for_each_set_bit(code, dev->key, KEY_CNT) {
 			input_pass_event(dev, EV_KEY, code, 0);
+			need_sync = true;
+		}
+
+		if (need_sync)
+			input_pass_event(dev, EV_SYN, SYN_REPORT, 1);
+
 		memset(dev->key, 0, sizeof(dev->key));
-		input_pass_event(dev, EV_SYN, SYN_REPORT, 1);
 	}
 }
 
-- 
cgit v1.2.3


From afe10358e47a3ea1f69005cb1be78170d23f8afa Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dtor@chromium.org>
Date: Thu, 16 Apr 2015 18:14:55 -0700
Subject: Input: elants_i2c - wire up regulator support

Elan touchscreen controllers use two power supplies, vcc33 and vccio,
and we need to enable them before trying to access the device. On X86
firmware usually does this, but on ARM it is usually left to the kernel.

Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Scott Liu <scott.liu@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 .../devicetree/bindings/input/elants_i2c.txt       |   3 +
 drivers/input/touchscreen/elants_i2c.c             | 184 ++++++++++++++++++---
 2 files changed, 165 insertions(+), 22 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/elants_i2c.txt b/Documentation/devicetree/bindings/input/elants_i2c.txt
index a765232e6446..8a71038f3489 100644
--- a/Documentation/devicetree/bindings/input/elants_i2c.txt
+++ b/Documentation/devicetree/bindings/input/elants_i2c.txt
@@ -13,6 +13,9 @@ Optional properties:
 - pinctrl-names: should be "default" (see pinctrl binding [1]).
 - pinctrl-0: a phandle pointing to the pin settings for the device (see
   pinctrl binding [1]).
+- reset-gpios: reset gpio the chip is connected to.
+- vcc33-supply: a phandle for the regulator supplying 3.3V power.
+- vccio-supply: a phandle for the regulator supplying IO power.
 
 [0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
 [1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c
index 42e43f14602e..19122652e71b 100644
--- a/drivers/input/touchscreen/elants_i2c.c
+++ b/drivers/input/touchscreen/elants_i2c.c
@@ -38,6 +38,8 @@
 #include <linux/input/mt.h>
 #include <linux/acpi.h>
 #include <linux/of.h>
+#include <linux/gpio/consumer.h>
+#include <linux/regulator/consumer.h>
 #include <asm/unaligned.h>
 
 /* Device, Driver information */
@@ -102,6 +104,9 @@
 /* calibration timeout definition */
 #define ELAN_CALI_TIMEOUT_MSEC	10000
 
+#define ELAN_POWERON_DELAY_USEC	500
+#define ELAN_RESET_DELAY_MSEC	20
+
 enum elants_state {
 	ELAN_STATE_NORMAL,
 	ELAN_WAIT_QUEUE_HEADER,
@@ -118,6 +123,10 @@ struct elants_data {
 	struct i2c_client *client;
 	struct input_dev *input;
 
+	struct regulator *vcc33;
+	struct regulator *vccio;
+	struct gpio_desc *reset_gpio;
+
 	u16 fw_version;
 	u8 test_version;
 	u8 solution_version;
@@ -141,6 +150,7 @@ struct elants_data {
 	u8 buf[MAX_PACKET_SIZE];
 
 	bool wake_irq_enabled;
+	bool keep_power_in_suspend;
 };
 
 static int elants_i2c_send(struct i2c_client *client,
@@ -1058,6 +1068,67 @@ static void elants_i2c_remove_sysfs_group(void *_data)
 	sysfs_remove_group(&ts->client->dev.kobj, &elants_attribute_group);
 }
 
+static int elants_i2c_power_on(struct elants_data *ts)
+{
+	int error;
+
+	/*
+	 * If we do not have reset gpio assume platform firmware
+	 * controls regulators and does power them on for us.
+	 */
+	if (IS_ERR_OR_NULL(ts->reset_gpio))
+		return 0;
+
+	gpiod_set_value_cansleep(ts->reset_gpio, 1);
+
+	error = regulator_enable(ts->vcc33);
+	if (error) {
+		dev_err(&ts->client->dev,
+			"failed to enable vcc33 regulator: %d\n",
+			error);
+		goto release_reset_gpio;
+	}
+
+	error = regulator_enable(ts->vccio);
+	if (error) {
+		dev_err(&ts->client->dev,
+			"failed to enable vccio regulator: %d\n",
+			error);
+		regulator_disable(ts->vcc33);
+		goto release_reset_gpio;
+	}
+
+	/*
+	 * We need to wait a bit after powering on controller before
+	 * we are allowed to release reset GPIO.
+	 */
+	udelay(ELAN_POWERON_DELAY_USEC);
+
+release_reset_gpio:
+	gpiod_set_value_cansleep(ts->reset_gpio, 0);
+	if (error)
+		return error;
+
+	msleep(ELAN_RESET_DELAY_MSEC);
+
+	return 0;
+}
+
+static void elants_i2c_power_off(void *_data)
+{
+	struct elants_data *ts = _data;
+
+	if (!IS_ERR_OR_NULL(ts->reset_gpio)) {
+		/*
+		 * Activate reset gpio to prevent leakage through the
+		 * pin once we shut off power to the controller.
+		 */
+		gpiod_set_value_cansleep(ts->reset_gpio, 1);
+		regulator_disable(ts->vccio);
+		regulator_disable(ts->vcc33);
+	}
+}
+
 static int elants_i2c_probe(struct i2c_client *client,
 			    const struct i2c_device_id *id)
 {
@@ -1072,13 +1143,6 @@ static int elants_i2c_probe(struct i2c_client *client,
 		return -ENXIO;
 	}
 
-	/* Make sure there is something at this address */
-	if (i2c_smbus_xfer(client->adapter, client->addr, 0,
-			I2C_SMBUS_READ, 0, I2C_SMBUS_BYTE, &dummy) < 0) {
-		dev_err(&client->dev, "nothing at this address\n");
-		return -ENXIO;
-	}
-
 	ts = devm_kzalloc(&client->dev, sizeof(struct elants_data), GFP_KERNEL);
 	if (!ts)
 		return -ENOMEM;
@@ -1089,6 +1153,70 @@ static int elants_i2c_probe(struct i2c_client *client,
 	ts->client = client;
 	i2c_set_clientdata(client, ts);
 
+	ts->vcc33 = devm_regulator_get(&client->dev, "vcc33");
+	if (IS_ERR(ts->vcc33)) {
+		error = PTR_ERR(ts->vcc33);
+		if (error != -EPROBE_DEFER)
+			dev_err(&client->dev,
+				"Failed to get 'vcc33' regulator: %d\n",
+				error);
+		return error;
+	}
+
+	ts->vccio = devm_regulator_get(&client->dev, "vccio");
+	if (IS_ERR(ts->vccio)) {
+		error = PTR_ERR(ts->vccio);
+		if (error != -EPROBE_DEFER)
+			dev_err(&client->dev,
+				"Failed to get 'vccio' regulator: %d\n",
+				error);
+		return error;
+	}
+
+	ts->reset_gpio = devm_gpiod_get(&client->dev, "reset");
+	if (IS_ERR(ts->reset_gpio)) {
+		error = PTR_ERR(ts->reset_gpio);
+
+		if (error == -EPROBE_DEFER)
+			return error;
+
+		if (error != -ENOENT && error != -ENOSYS) {
+			dev_err(&client->dev,
+				"failed to get reset gpio: %d\n",
+				error);
+			return error;
+		}
+
+		ts->keep_power_in_suspend = true;
+	} else {
+		error = gpiod_direction_output(ts->reset_gpio, 0);
+		if (error) {
+			dev_err(&client->dev,
+				"failed to configure reset gpio as output: %d\n",
+				error);
+			return error;
+		}
+	}
+
+	error = elants_i2c_power_on(ts);
+	if (error)
+		return error;
+
+	error = devm_add_action(&client->dev, elants_i2c_power_off, ts);
+	if (error) {
+		dev_err(&client->dev,
+			"failed to install power off action: %d\n", error);
+		elants_i2c_power_off(ts);
+		return error;
+	}
+
+	/* Make sure there is something at this address */
+	if (i2c_smbus_xfer(client->adapter, client->addr, 0,
+			   I2C_SMBUS_READ, 0, I2C_SMBUS_BYTE, &dummy) < 0) {
+		dev_err(&client->dev, "nothing at this address\n");
+		return -ENXIO;
+	}
+
 	error = elants_i2c_initialize(ts);
 	if (error) {
 		dev_err(&client->dev, "failed to initialize: %d\n", error);
@@ -1196,17 +1324,23 @@ static int __maybe_unused elants_i2c_suspend(struct device *dev)
 
 	disable_irq(client->irq);
 
-	for (retry_cnt = 0; retry_cnt < MAX_RETRIES; retry_cnt++) {
-		error = elants_i2c_send(client, set_sleep_cmd,
-					sizeof(set_sleep_cmd));
-		if (!error)
-			break;
+	if (device_may_wakeup(dev) || ts->keep_power_in_suspend) {
+		for (retry_cnt = 0; retry_cnt < MAX_RETRIES; retry_cnt++) {
+			error = elants_i2c_send(client, set_sleep_cmd,
+						sizeof(set_sleep_cmd));
+			if (!error)
+				break;
 
-		dev_err(&client->dev, "suspend command failed: %d\n", error);
-	}
+			dev_err(&client->dev,
+				"suspend command failed: %d\n", error);
+		}
 
-	if (device_may_wakeup(dev))
-		ts->wake_irq_enabled = (enable_irq_wake(client->irq) == 0);
+		if (device_may_wakeup(dev))
+			ts->wake_irq_enabled =
+					(enable_irq_wake(client->irq) == 0);
+	} else {
+		elants_i2c_power_off(ts);
+	}
 
 	return 0;
 }
@@ -1222,13 +1356,19 @@ static int __maybe_unused elants_i2c_resume(struct device *dev)
 	if (device_may_wakeup(dev) && ts->wake_irq_enabled)
 		disable_irq_wake(client->irq);
 
-	for (retry_cnt = 0; retry_cnt < MAX_RETRIES; retry_cnt++) {
-		error = elants_i2c_send(client, set_active_cmd,
-					sizeof(set_active_cmd));
-		if (!error)
-			break;
+	if (ts->keep_power_in_suspend) {
+		for (retry_cnt = 0; retry_cnt < MAX_RETRIES; retry_cnt++) {
+			error = elants_i2c_send(client, set_active_cmd,
+						sizeof(set_active_cmd));
+			if (!error)
+				break;
 
-		dev_err(&client->dev, "resume command failed: %d\n", error);
+			dev_err(&client->dev,
+				"resume command failed: %d\n", error);
+		}
+	} else {
+		elants_i2c_power_on(ts);
+		elants_i2c_initialize(ts);
 	}
 
 	ts->state = ELAN_STATE_NORMAL;
-- 
cgit v1.2.3


From 9f6a07b67fc032fce28248da62d9342fd4e89954 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dtor@chromium.org>
Date: Tue, 14 Apr 2015 18:18:34 -0700
Subject: Input: elants_i2c - enable asynchronous probing

It takes a bit of time to go through controller power up sequence and
initialization. To not stall the overall boot progress let's probe the
controller asynchronously, given that userspace is usually prepared for
hot-plugging of input devices and thus does not rely on particular
ordering.

Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/elants_i2c.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c
index 19122652e71b..6f7155641591 100644
--- a/drivers/input/touchscreen/elants_i2c.c
+++ b/drivers/input/touchscreen/elants_i2c.c
@@ -1410,6 +1410,7 @@ static struct i2c_driver elants_i2c_driver = {
 		.pm = &elants_i2c_pm_ops,
 		.acpi_match_table = ACPI_PTR(elants_acpi_id),
 		.of_match_table = of_match_ptr(elants_of_match),
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 };
 module_i2c_driver(elants_i2c_driver);
-- 
cgit v1.2.3


From 71d0f562358c3274e78ef371dfeb71ad5e86cb91 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Wed, 5 Aug 2015 12:01:30 -0700
Subject: Input: elan_i2c - enable asynchronous probing

It takes a bit of time to go through controller power up sequence and
initialization. To not stall the overall boot progress let's probe the
controller asynchronously, given that userspace is usually prepared for
hot-plugging of input devices and thus does not rely on particular
ordering.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/mouse/elan_i2c_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index 0a076d30be8b..67388f42ed9a 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -1185,6 +1185,7 @@ static struct i2c_driver elan_driver = {
 		.pm	= &elan_pm_ops,
 		.acpi_match_table = ACPI_PTR(elan_acpi_id),
 		.of_match_table = of_match_ptr(elan_of_match),
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 	.probe		= elan_probe,
 	.id_table	= elan_id,
-- 
cgit v1.2.3


From 7229b87bb269c9e18cabbc43c5fb01c81d097b24 Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Sun, 9 Aug 2015 22:37:46 -0700
Subject: Input: elants_i2c - fix for devm_gpiod_get API change

Flags are now mandatory for devm_gpiod_get(). So let's use proper flag
to configure gpio for output instead of doing this by hand.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
[Dmitry: GPIOD_ASIS -> GPIOD_OUT_LOW]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/elants_i2c.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c
index 6f7155641591..ddac134b25b1 100644
--- a/drivers/input/touchscreen/elants_i2c.c
+++ b/drivers/input/touchscreen/elants_i2c.c
@@ -1173,7 +1173,7 @@ static int elants_i2c_probe(struct i2c_client *client,
 		return error;
 	}
 
-	ts->reset_gpio = devm_gpiod_get(&client->dev, "reset");
+	ts->reset_gpio = devm_gpiod_get(&client->dev, "reset", GPIOD_OUT_LOW);
 	if (IS_ERR(ts->reset_gpio)) {
 		error = PTR_ERR(ts->reset_gpio);
 
@@ -1188,14 +1188,6 @@ static int elants_i2c_probe(struct i2c_client *client,
 		}
 
 		ts->keep_power_in_suspend = true;
-	} else {
-		error = gpiod_direction_output(ts->reset_gpio, 0);
-		if (error) {
-			dev_err(&client->dev,
-				"failed to configure reset gpio as output: %d\n",
-				error);
-			return error;
-		}
 	}
 
 	error = elants_i2c_power_on(ts);
-- 
cgit v1.2.3


From efe3b616f88caa95dbe8636f4d0b3dcefca962bb Mon Sep 17 00:00:00 2001
From: Matt Ranostay <mranostay@gmail.com>
Date: Sun, 16 Aug 2015 23:04:53 -0700
Subject: Input: cap11xx - add LED support

Several cap11xx variants have LEDs that be can be controlled; let's plug
the driver into the LED subsystem.

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 .../devicetree/bindings/input/cap11xx.txt          |  19 +++
 drivers/input/keyboard/cap11xx.c                   | 144 ++++++++++++++++++++-
 2 files changed, 160 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/cap11xx.txt b/Documentation/devicetree/bindings/input/cap11xx.txt
index 7d0a3009771b..8c67a0b5058d 100644
--- a/Documentation/devicetree/bindings/input/cap11xx.txt
+++ b/Documentation/devicetree/bindings/input/cap11xx.txt
@@ -55,5 +55,24 @@ i2c_controller {
 				 <105>,		/* KEY_LEFT */
 				 <109>,		/* KEY_PAGEDOWN */
 				 <104>;		/* KEY_PAGEUP */
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		usr@0 {
+			label = "cap11xx:green:usr0";
+			reg = <0>;
+		};
+
+		usr@1 {
+			label = "cap11xx:green:usr1";
+			reg = <1>;
+		};
+
+		alive@2 {
+			label = "cap11xx:green:alive";
+			reg = <2>;
+			linux,default_trigger = "heartbeat";
+		};
 	};
 }
diff --git a/drivers/input/keyboard/cap11xx.c b/drivers/input/keyboard/cap11xx.c
index b58fd9d72d92..378db10001df 100644
--- a/drivers/input/keyboard/cap11xx.c
+++ b/drivers/input/keyboard/cap11xx.c
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/input.h>
+#include <linux/leds.h>
 #include <linux/of_irq.h>
 #include <linux/regmap.h>
 #include <linux/i2c.h>
@@ -47,6 +48,20 @@
 #define CAP11XX_REG_CONFIG2		0x44
 #define CAP11XX_REG_CONFIG2_ALT_POL	BIT(6)
 #define CAP11XX_REG_SENSOR_BASE_CNT(X)	(0x50 + (X))
+#define CAP11XX_REG_LED_POLARITY	0x73
+#define CAP11XX_REG_LED_OUTPUT_CONTROL	0x74
+
+#define CAP11XX_REG_LED_DUTY_CYCLE_1	0x90
+#define CAP11XX_REG_LED_DUTY_CYCLE_2	0x91
+#define CAP11XX_REG_LED_DUTY_CYCLE_3	0x92
+#define CAP11XX_REG_LED_DUTY_CYCLE_4	0x93
+
+#define CAP11XX_REG_LED_DUTY_MIN_MASK	(0x0f)
+#define CAP11XX_REG_LED_DUTY_MIN_MASK_SHIFT	(0)
+#define CAP11XX_REG_LED_DUTY_MAX_MASK	(0xf0)
+#define CAP11XX_REG_LED_DUTY_MAX_MASK_SHIFT	(4)
+#define CAP11XX_REG_LED_DUTY_MAX_VALUE	(15)
+
 #define CAP11XX_REG_SENSOR_CALIB	(0xb1 + (X))
 #define CAP11XX_REG_SENSOR_CALIB_LSB1	0xb9
 #define CAP11XX_REG_SENSOR_CALIB_LSB2	0xba
@@ -56,10 +71,23 @@
 
 #define CAP11XX_MANUFACTURER_ID	0x5d
 
+#ifdef CONFIG_LEDS_CLASS
+struct cap11xx_led {
+	struct cap11xx_priv *priv;
+	struct led_classdev cdev;
+	struct work_struct work;
+	u32 reg;
+	enum led_brightness new_brightness;
+};
+#endif
+
 struct cap11xx_priv {
 	struct regmap *regmap;
 	struct input_dev *idev;
 
+	struct cap11xx_led *leds;
+	int num_leds;
+
 	/* config */
 	u32 keycodes[];
 };
@@ -67,6 +95,7 @@ struct cap11xx_priv {
 struct cap11xx_hw_model {
 	u8 product_id;
 	unsigned int num_channels;
+	unsigned int num_leds;
 };
 
 enum {
@@ -76,9 +105,9 @@ enum {
 };
 
 static const struct cap11xx_hw_model cap11xx_devices[] = {
-	[CAP1106] = { .product_id = 0x55, .num_channels = 6 },
-	[CAP1126] = { .product_id = 0x53, .num_channels = 6 },
-	[CAP1188] = { .product_id = 0x50, .num_channels = 8 },
+	[CAP1106] = { .product_id = 0x55, .num_channels = 6, .num_leds = 0 },
+	[CAP1126] = { .product_id = 0x53, .num_channels = 6, .num_leds = 2 },
+	[CAP1188] = { .product_id = 0x50, .num_channels = 8, .num_leds = 8 },
 };
 
 static const struct reg_default cap11xx_reg_defaults[] = {
@@ -111,6 +140,7 @@ static const struct reg_default cap11xx_reg_defaults[] = {
 	{ CAP11XX_REG_STANDBY_SENSITIVITY,	0x02 },
 	{ CAP11XX_REG_STANDBY_THRESH,		0x40 },
 	{ CAP11XX_REG_CONFIG2,			0x40 },
+	{ CAP11XX_REG_LED_POLARITY,		0x00 },
 	{ CAP11XX_REG_SENSOR_CALIB_LSB1,	0x00 },
 	{ CAP11XX_REG_SENSOR_CALIB_LSB2,	0x00 },
 };
@@ -177,6 +207,12 @@ out:
 
 static int cap11xx_set_sleep(struct cap11xx_priv *priv, bool sleep)
 {
+	/*
+	 * DLSEEP mode will turn off all LEDS, prevent this
+	 */
+	if (IS_ENABLED(CONFIG_LEDS_CLASS) && priv->num_leds)
+		return 0;
+
 	return regmap_update_bits(priv->regmap, CAP11XX_REG_MAIN_CONTROL,
 				  CAP11XX_REG_MAIN_CONTROL_DLSEEP,
 				  sleep ? CAP11XX_REG_MAIN_CONTROL_DLSEEP : 0);
@@ -196,6 +232,104 @@ static void cap11xx_input_close(struct input_dev *idev)
 	cap11xx_set_sleep(priv, true);
 }
 
+#ifdef CONFIG_LEDS_CLASS
+static void cap11xx_led_work(struct work_struct *work)
+{
+	struct cap11xx_led *led = container_of(work, struct cap11xx_led, work);
+	struct cap11xx_priv *priv = led->priv;
+	int value = led->new_brightness;
+
+	/*
+	 * All LEDs share the same duty cycle as this is a HW limitation.
+	 * Brightness levels per LED are either 0 (OFF) and 1 (ON).
+	 */
+	regmap_update_bits(priv->regmap, CAP11XX_REG_LED_OUTPUT_CONTROL,
+				BIT(led->reg), value ? BIT(led->reg) : 0);
+}
+
+static void cap11xx_led_set(struct led_classdev *cdev,
+			   enum led_brightness value)
+{
+	struct cap11xx_led *led = container_of(cdev, struct cap11xx_led, cdev);
+
+	if (led->new_brightness == value)
+		return;
+
+	led->new_brightness = value;
+	schedule_work(&led->work);
+}
+
+static int cap11xx_init_leds(struct device *dev,
+			     struct cap11xx_priv *priv, int num_leds)
+{
+	struct device_node *node = dev->of_node, *child;
+	struct cap11xx_led *led;
+	int cnt = of_get_child_count(node);
+	int error;
+
+	if (!num_leds || !cnt)
+		return 0;
+
+	if (cnt > num_leds)
+		return -EINVAL;
+
+	led = devm_kcalloc(dev, cnt, sizeof(struct cap11xx_led), GFP_KERNEL);
+	if (!led)
+		return -ENOMEM;
+
+	priv->leds = led;
+
+	error = regmap_update_bits(priv->regmap,
+				CAP11XX_REG_LED_OUTPUT_CONTROL, 0xff, 0);
+	if (error)
+		return error;
+
+	error = regmap_update_bits(priv->regmap, CAP11XX_REG_LED_DUTY_CYCLE_4,
+				CAP11XX_REG_LED_DUTY_MAX_MASK,
+				CAP11XX_REG_LED_DUTY_MAX_VALUE <<
+				CAP11XX_REG_LED_DUTY_MAX_MASK_SHIFT);
+	if (error)
+		return error;
+
+	for_each_child_of_node(node, child) {
+		u32 reg;
+
+		led->cdev.name =
+			of_get_property(child, "label", NULL) ? : child->name;
+		led->cdev.default_trigger =
+			of_get_property(child, "linux,default-trigger", NULL);
+		led->cdev.flags = 0;
+		led->cdev.brightness_set = cap11xx_led_set;
+		led->cdev.max_brightness = 1;
+		led->cdev.brightness = LED_OFF;
+
+		error = of_property_read_u32(child, "reg", &reg);
+		if (error != 0 || reg >= num_leds)
+			return -EINVAL;
+
+		led->reg = reg;
+		led->priv = priv;
+
+		INIT_WORK(&led->work, cap11xx_led_work);
+
+		error = devm_led_classdev_register(dev, &led->cdev);
+		if (error)
+			return error;
+
+		priv->num_leds++;
+		led++;
+	}
+
+	return 0;
+}
+#else
+static int cap11xx_init_leds(struct device *dev,
+			     struct cap11xx_priv *priv, int num_leds)
+{
+	return 0;
+}
+#endif
+
 static int cap11xx_i2c_probe(struct i2c_client *i2c_client,
 			     const struct i2c_device_id *id)
 {
@@ -316,6 +450,10 @@ static int cap11xx_i2c_probe(struct i2c_client *i2c_client,
 	priv->idev->open = cap11xx_input_open;
 	priv->idev->close = cap11xx_input_close;
 
+	error = cap11xx_init_leds(dev, priv, cap->num_leds);
+	if (error)
+		return error;
+
 	input_set_drvdata(priv->idev, priv);
 
 	/*
-- 
cgit v1.2.3


From 95ecdc2549ccc1f4f5af1f37c080120c2f0a1be3 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier@osg.samsung.com>
Date: Wed, 19 Aug 2015 14:20:45 -0700
Subject: Input: cros_ec_keyb - replace KEYBOARD_CROS_EC dependency

The ChromeOS EC keyboard driver config depends on CROS_EC_PROTO but
MFD_CROS_EC selects CROS_EC_PROTO instead. Mixing select and depends
on is bad practice as it may lead to circular Kconfig dependencies.

Since the platform device that is matched with the keyboard driver
is registered by the ChromeOS EC mfd driver, KEYBOARD_CROS_EC really
should depend on MFD_CROS_EC. And because this config option selects
CROS_EC_PROTO, that dependency is met as well. So make the driver
to depend on MFD_CROS_EC instead of CROS_EC_PROTO.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/keyboard/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 10dfa23b11a8..398d4be8159e 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -678,7 +678,7 @@ config KEYBOARD_W90P910
 config KEYBOARD_CROS_EC
 	tristate "ChromeOS EC keyboard"
 	select INPUT_MATRIXKMAP
-	depends on CROS_EC_PROTO
+	depends on MFD_CROS_EC
 	help
 	  Say Y here to enable the matrix keyboard used by ChromeOS devices
 	  and implemented on the ChromeOS EC. You must enable one bus option
-- 
cgit v1.2.3


From 012bd2a533cd665c9961c5905f144170b16f61e4 Mon Sep 17 00:00:00 2001
From: Yalin Wang <yalin.wang2010@gmail.com>
Date: Thu, 20 Aug 2015 17:41:42 -0700
Subject: Input: zhenhua - switch to using bitrev8()

Instead of custom zhenhua_bitreverse() let's use generic bitrev8().

Signed-off-by: Yalin Wang <yalin.wang2010@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/joystick/zhenhua.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/input/joystick/zhenhua.c b/drivers/input/joystick/zhenhua.c
index 30af2e8c670c..4a8258bf13fd 100644
--- a/drivers/input/joystick/zhenhua.c
+++ b/drivers/input/joystick/zhenhua.c
@@ -47,6 +47,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/slab.h>
+#include <linux/bitrev.h>
 #include <linux/input.h>
 #include <linux/serio.h>
 
@@ -72,16 +73,6 @@ struct zhenhua {
 	char phys[32];
 };
 
-
-/* bits in all incoming bytes needs to be "reversed" */
-static int zhenhua_bitreverse(int x)
-{
-	x = ((x & 0xaa) >> 1) | ((x & 0x55) << 1);
-	x = ((x & 0xcc) >> 2) | ((x & 0x33) << 2);
-	x = ((x & 0xf0) >> 4) | ((x & 0x0f) << 4);
-	return x;
-}
-
 /*
  * zhenhua_process_packet() decodes packets the driver receives from the
  * RC transmitter. It updates the data accordingly.
@@ -120,7 +111,7 @@ static irqreturn_t zhenhua_interrupt(struct serio *serio, unsigned char data, un
 		return IRQ_HANDLED;	/* wrong MSB -- ignore this byte */
 
 	if (zhenhua->idx < ZHENHUA_MAX_LENGTH)
-		zhenhua->data[zhenhua->idx++] = zhenhua_bitreverse(data);
+		zhenhua->data[zhenhua->idx++] = bitrev8(data);
 
 	if (zhenhua->idx == ZHENHUA_MAX_LENGTH) {
 		zhenhua_process_packet(zhenhua);
-- 
cgit v1.2.3


From 9c8f55798a9d716daed4de6d7038a21c3ca6e673 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 21 Aug 2015 09:29:50 -0700
Subject: Input: sentelic - silence some underflow warnings

I have a static checker that complains when we check for an upper bound
but don't have a corresponding check for a lower bound.  With this code,
the upper bound check seems not really required, so it is not a bug to
leave the lower bound check out as well.  But let's silence the warning
by making these variables unsigned.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/mouse/sentelic.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/input/mouse/sentelic.c b/drivers/input/mouse/sentelic.c
index cc7e0d4a8f93..11c32ac8234b 100644
--- a/drivers/input/mouse/sentelic.c
+++ b/drivers/input/mouse/sentelic.c
@@ -432,7 +432,7 @@ static int fsp_onpad_hscr(struct psmouse *psmouse, bool enable)
 static ssize_t fsp_attr_set_setreg(struct psmouse *psmouse, void *data,
 				   const char *buf, size_t count)
 {
-	int reg, val;
+	unsigned int reg, val;
 	char *rest;
 	ssize_t retval;
 
@@ -440,7 +440,7 @@ static ssize_t fsp_attr_set_setreg(struct psmouse *psmouse, void *data,
 	if (rest == buf || *rest != ' ' || reg > 0xff)
 		return -EINVAL;
 
-	retval = kstrtoint(rest + 1, 16, &val);
+	retval = kstrtouint(rest + 1, 16, &val);
 	if (retval)
 		return retval;
 
@@ -476,9 +476,10 @@ static ssize_t fsp_attr_set_getreg(struct psmouse *psmouse, void *data,
 					const char *buf, size_t count)
 {
 	struct fsp_data *pad = psmouse->private;
-	int reg, val, err;
+	unsigned int reg, val;
+	int err;
 
-	err = kstrtoint(buf, 16, &reg);
+	err = kstrtouint(buf, 16, &reg);
 	if (err)
 		return err;
 
@@ -511,9 +512,10 @@ static ssize_t fsp_attr_show_pagereg(struct psmouse *psmouse,
 static ssize_t fsp_attr_set_pagereg(struct psmouse *psmouse, void *data,
 					const char *buf, size_t count)
 {
-	int val, err;
+	unsigned int val;
+	int err;
 
-	err = kstrtoint(buf, 16, &val);
+	err = kstrtouint(buf, 16, &val);
 	if (err)
 		return err;
 
-- 
cgit v1.2.3


From ff89de6ba1d41ad4dea2c59531c5b4038ae43e8c Mon Sep 17 00:00:00 2001
From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Mon, 24 Aug 2015 10:51:04 -0700
Subject: Input: sur40 - fix error return code

Propagate error code on failure, or upper layers will be confused by
returned 0 (success) code.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/sur40.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c
index 8be7b9b79f20..3f117637e832 100644
--- a/drivers/input/touchscreen/sur40.c
+++ b/drivers/input/touchscreen/sur40.c
@@ -581,6 +581,7 @@ static int sur40_probe(struct usb_interface *interface,
 	sur40->alloc_ctx = vb2_dma_sg_init_ctx(sur40->dev);
 	if (IS_ERR(sur40->alloc_ctx)) {
 		dev_err(sur40->dev, "Can't allocate buffer context");
+		error = PTR_ERR(sur40->alloc_ctx);
 		goto err_unreg_v4l2;
 	}
 
-- 
cgit v1.2.3


From 4ea14a53d8f881034fa9e186653821c4e3d9a8fb Mon Sep 17 00:00:00 2001
From: Peng Fan <van.freenix@gmail.com>
Date: Mon, 24 Aug 2015 10:42:25 -0700
Subject: Input: gpio-keys - report error when disabling unsupported key

When trying to disable a key that is not supported by the device we should
report error, not do nothing and report success:

root@yocto:/sys/devices/soc0/gpio-keys# cat keys
114-116
root@yocto:/sys/devices/soc0/gpio-keys# echo 77 > keys
root@yocto:/sys/devices/soc0/gpio-keys#

We want 'echo 77 > keys' to report an error, but silence to give us an
illusion that all is 'ok'.

Signed-off-by: Peng Fan <van.freenix@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/keyboard/gpio_keys.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index 1df4507c4c0b..9d517ca7eb5a 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -239,6 +239,11 @@ static ssize_t gpio_keys_attr_store_helper(struct gpio_keys_drvdata *ddata,
 		}
 	}
 
+	if (i == ddata->pdata->nbuttons) {
+		error = -EINVAL;
+		goto out;
+	}
+
 	mutex_lock(&ddata->disable_lock);
 
 	for (i = 0; i < ddata->pdata->nbuttons; i++) {
-- 
cgit v1.2.3


From 534fcb3bdaab801636d2146079462f7fdf52be0a Mon Sep 17 00:00:00 2001
From: Michele Curti <michele.curti@gmail.com>
Date: Mon, 24 Aug 2015 10:49:29 -0700
Subject: Input: elan_i2c - enable ELAN0100 acpi panels

Enable ELAN0100 touchpad driver, found on a Asus X205TA laptop, to
gai 2,3 fingers tap and 2 fingers scroll.

Signed-off-by: Michele Curti <michele.curti@gmail.com>
Reviewed-by: Duson Lin <dusonlin@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/hid/hid-core.c              | 1 +
 drivers/input/mouse/elan_i2c_core.c | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 279898c0a160..3028c1687a51 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2268,6 +2268,7 @@ static const struct hid_device_id hid_ignore_list[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) },
 	{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, 0x0400) },
+	{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, 0x0401) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index 67388f42ed9a..bbdaedc09261 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -98,6 +98,9 @@ static int elan_get_fwinfo(u8 ic_type, u16 *vaildpage_count,
 			   u16 *signature_address)
 {
 	switch(ic_type) {
+	case 0x08:
+		*vaildpage_count = 512;
+		break;
 	case 0x09:
 		*vaildpage_count = 768;
 		break;
@@ -1165,6 +1168,7 @@ MODULE_DEVICE_TABLE(i2c, elan_id);
 #ifdef CONFIG_ACPI
 static const struct acpi_device_id elan_acpi_id[] = {
 	{ "ELAN0000", 0 },
+	{ "ELAN0100", 0 },
 	{ "ELAN0600", 0 },
 	{ }
 };
-- 
cgit v1.2.3


From e51e38494a8ecc18650efb0c840600637891de2c Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Thu, 20 Aug 2015 14:28:48 -0700
Subject: Input: synaptics - fix handling of disabling gesture mode

Bit 2 of the mode byte has dual meaning: it can disable reporting of
gestures when touchpad works in Relative mode or normal Absolute mode,
or it can enable so called Extended W-Mode when touchpad uses enhanced
Absolute mode (W-mode). The extended W-Mode confuses our driver and
causes missing button presses on some Thinkpads (x250, T450s), so let's
make sure we do not enable it.

Also, according to the spec W mode "... bit is defined only in Absolute
mode on pads whose capExtended capability bit is set. In Relative mode and
in TouchPads without this capability, the bit is reserved and should be
left at 0.", so let's make sure we respect this requirement as well.

Reported-by: Nick Bowler <nbowler@draconx.ca>
Suggested-by: Gabor Balla <gaborwho@gmail.com>
Tested-by: Gabor Balla <gaborwho@gmail.com>
Tested-by: Nick Bowler <nbowler@draconx.ca>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/mouse/synaptics.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 6025eb430c0a..994ae7886156 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -519,14 +519,18 @@ static int synaptics_set_mode(struct psmouse *psmouse)
 	struct synaptics_data *priv = psmouse->private;
 
 	priv->mode = 0;
-	if (priv->absolute_mode)
+
+	if (priv->absolute_mode) {
 		priv->mode |= SYN_BIT_ABSOLUTE_MODE;
-	if (priv->disable_gesture)
+		if (SYN_CAP_EXTENDED(priv->capabilities))
+			priv->mode |= SYN_BIT_W_MODE;
+	}
+
+	if (!SYN_MODE_WMODE(priv->mode) && priv->disable_gesture)
 		priv->mode |= SYN_BIT_DISABLE_GESTURE;
+
 	if (psmouse->rate >= 80)
 		priv->mode |= SYN_BIT_HIGH_RATE;
-	if (SYN_CAP_EXTENDED(priv->capabilities))
-		priv->mode |= SYN_BIT_W_MODE;
 
 	if (synaptics_mode_cmd(psmouse, priv->mode))
 		return -1;
-- 
cgit v1.2.3


From 66bc2f51ef7deabc8b8f3baa98ae64b65e5e973a Mon Sep 17 00:00:00 2001
From: Stefan Assmann <sassmann@kpanic.de>
Date: Wed, 26 Aug 2015 13:11:49 -0700
Subject: Input: psmouse - add small delay for IBM trackpoint pass-through mode

There are trackpoint devices that fail to respond to the PS2 command
PSMOUSE_CMD_GETID if immediately queried after the parent device is
deactivated. Add a small delay for the hardware to get in a sane state
before sending any PS2 commands.

One example of such a system is:
Lenovo ThinkPad X120e, model 30515QG
synaptics: Touchpad model: 1, fw: 8.0, id: 0x1e2b1, caps: 0xd001a3/0x940300/0x121c00, board id: 1811, fw id: 797391

Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/mouse/psmouse-base.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index ec3477036150..ad18dab0ac47 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -1540,6 +1540,10 @@ static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
 	if (error)
 		goto err_clear_drvdata;
 
+	/* give PT device some time to settle down before probing */
+	if (serio->id.type == SERIO_PS_PSTHRU)
+		usleep_range(10000, 15000);
+
 	if (psmouse_probe(psmouse) < 0) {
 		error = -ENODEV;
 		goto err_close_serio;
-- 
cgit v1.2.3


From 742f452b9b60c228a33e8d35fd2c74cd15bdaa29 Mon Sep 17 00:00:00 2001
From: Benson Leung <bleung@chromium.org>
Date: Fri, 28 Aug 2015 17:30:16 -0700
Subject: Input: elan_i2c - fix typos for validpage_count

Search for "vaildpage_count" and replace with "validpage_count".

Signed-off-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/mouse/elan_i2c_core.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index bbdaedc09261..d4a38caa1ab1 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -84,7 +84,7 @@ struct elan_tp_data {
 	int			pressure_adjustment;
 	u8			mode;
 	u8			ic_type;
-	u16			fw_vaildpage_count;
+	u16			fw_validpage_count;
 	u16			fw_signature_address;
 
 	bool			irq_wake;
@@ -94,28 +94,28 @@ struct elan_tp_data {
 	bool			baseline_ready;
 };
 
-static int elan_get_fwinfo(u8 ic_type, u16 *vaildpage_count,
+static int elan_get_fwinfo(u8 ic_type, u16 *validpage_count,
 			   u16 *signature_address)
 {
 	switch(ic_type) {
 	case 0x08:
-		*vaildpage_count = 512;
+		*validpage_count = 512;
 		break;
 	case 0x09:
-		*vaildpage_count = 768;
+		*validpage_count = 768;
 		break;
 	case 0x0D:
-		*vaildpage_count = 896;
+		*validpage_count = 896;
 		break;
 	default:
 		/* unknown ic type clear value */
-		*vaildpage_count = 0;
+		*validpage_count = 0;
 		*signature_address = 0;
 		return -ENXIO;
 	}
 
 	*signature_address =
-		(*vaildpage_count * ETP_FW_PAGE_SIZE) - ETP_FW_SIGNATURE_SIZE;
+		(*validpage_count * ETP_FW_PAGE_SIZE) - ETP_FW_SIGNATURE_SIZE;
 
 	return 0;
 }
@@ -264,7 +264,7 @@ static int elan_query_device_info(struct elan_tp_data *data)
 	if (error)
 		return error;
 
-	error = elan_get_fwinfo(data->ic_type, &data->fw_vaildpage_count,
+	error = elan_get_fwinfo(data->ic_type, &data->fw_validpage_count,
 				&data->fw_signature_address);
 	if (error) {
 		dev_err(&data->client->dev,
@@ -356,7 +356,7 @@ static int __elan_update_firmware(struct elan_tp_data *data,
 	iap_start_addr = get_unaligned_le16(&fw->data[ETP_IAP_START_ADDR * 2]);
 
 	boot_page_count = (iap_start_addr * 2) / ETP_FW_PAGE_SIZE;
-	for (i = boot_page_count; i < data->fw_vaildpage_count; i++) {
+	for (i = boot_page_count; i < data->fw_validpage_count; i++) {
 		u16 checksum = 0;
 		const u8 *page = &fw->data[i * ETP_FW_PAGE_SIZE];
 
-- 
cgit v1.2.3


From d6f5aef298b5e5bd12e5d3ef111a4d0fc727ca70 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier@osg.samsung.com>
Date: Fri, 28 Aug 2015 17:30:46 -0700
Subject: Input: max8997_haptic - fix module alias

The driver is a platform driver and not a I2C driver so its modalias
should be exported with MODULE_DEVICE_TABLE(platform,...) instead of
MODULE_DEVICE_TABLE(i2c,...).

Also, remove the unnecessary MODULE_ALIAS("platform:max8997-haptic")
now that the correct module alias is created.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/misc/max8997_haptic.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/input/misc/max8997_haptic.c b/drivers/input/misc/max8997_haptic.c
index d0f687281339..a806ba3818f7 100644
--- a/drivers/input/misc/max8997_haptic.c
+++ b/drivers/input/misc/max8997_haptic.c
@@ -394,7 +394,7 @@ static const struct platform_device_id max8997_haptic_id[] = {
 	{ "max8997-haptic", 0 },
 	{ },
 };
-MODULE_DEVICE_TABLE(i2c, max8997_haptic_id);
+MODULE_DEVICE_TABLE(platform, max8997_haptic_id);
 
 static struct platform_driver max8997_haptic_driver = {
 	.driver	= {
@@ -407,7 +407,6 @@ static struct platform_driver max8997_haptic_driver = {
 };
 module_platform_driver(max8997_haptic_driver);
 
-MODULE_ALIAS("platform:max8997-haptic");
 MODULE_AUTHOR("Donggeun Kim <dg77.kim@samsung.com>");
 MODULE_DESCRIPTION("max8997_haptic driver");
 MODULE_LICENSE("GPL");
-- 
cgit v1.2.3


From 58f1eae48e5372200553de07b5ecc7574803ee91 Mon Sep 17 00:00:00 2001
From: Duson Lin <dusonlin@emc.com.tw>
Date: Thu, 3 Sep 2015 09:46:45 -0700
Subject: Input: elan_i2c - use iap_version to get firmware information

When driver is in IAP mode ic_type query may return 0xff. However
iap_version will always be valid, so let's use it to determine parameters
of the firmware that the controller is supposed to accept.

Signed-off-by: Duson Lin <dusonlin@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/mouse/elan_i2c_core.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index d4a38caa1ab1..e2b7420eed97 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -4,7 +4,7 @@
  * Copyright (c) 2013 ELAN Microelectronics Corp.
  *
  * Author: 林政維 (Duson Lin) <dusonlin@emc.com.tw>
- * Version: 1.5.9
+ * Version: 1.6.0
  *
  * Based on cyapa driver:
  * copyright (c) 2011-2012 Cypress Semiconductor, Inc.
@@ -40,7 +40,7 @@
 #include "elan_i2c.h"
 
 #define DRIVER_NAME		"elan_i2c"
-#define ELAN_DRIVER_VERSION	"1.5.9"
+#define ELAN_DRIVER_VERSION	"1.6.0"
 #define ETP_MAX_PRESSURE	255
 #define ETP_FWIDTH_REDUCE	90
 #define ETP_FINGER_WIDTH	15
@@ -94,10 +94,10 @@ struct elan_tp_data {
 	bool			baseline_ready;
 };
 
-static int elan_get_fwinfo(u8 ic_type, u16 *validpage_count,
+static int elan_get_fwinfo(u8 iap_version, u16 *validpage_count,
 			   u16 *signature_address)
 {
-	switch(ic_type) {
+	switch (iap_version) {
 	case 0x08:
 		*validpage_count = 512;
 		break;
@@ -264,11 +264,11 @@ static int elan_query_device_info(struct elan_tp_data *data)
 	if (error)
 		return error;
 
-	error = elan_get_fwinfo(data->ic_type, &data->fw_validpage_count,
+	error = elan_get_fwinfo(data->iap_version, &data->fw_validpage_count,
 				&data->fw_signature_address);
 	if (error) {
 		dev_err(&data->client->dev,
-			"unknown ic type %d\n", data->ic_type);
+			"unknown iap version %d\n", data->iap_version);
 		return error;
 	}
 
-- 
cgit v1.2.3