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-rw-r--r--drivers/i2c/busses/i2c-ali1535.c61
-rw-r--r--drivers/i2c/busses/i2c-cpm.c7
-rw-r--r--drivers/i2c/busses/i2c-eg20t.c41
-rw-r--r--drivers/i2c/busses/i2c-highlander.c2
-rw-r--r--drivers/i2c/busses/i2c-omap.c4
-rw-r--r--drivers/i2c/busses/i2c-pxa.c7
-rw-r--r--drivers/i2c/busses/i2c-s6000.c5
-rw-r--r--drivers/i2c/busses/i2c-tegra.c17
8 files changed, 75 insertions, 69 deletions
diff --git a/drivers/i2c/busses/i2c-ali1535.c b/drivers/i2c/busses/i2c-ali1535.c
index dd364171f9c5..b6807db7b36f 100644
--- a/drivers/i2c/busses/i2c-ali1535.c
+++ b/drivers/i2c/busses/i2c-ali1535.c
@@ -1,23 +1,23 @@
/*
- Copyright (c) 2000 Frodo Looijaard <frodol@dds.nl>,
- Philip Edelbrock <phil@netroedge.com>,
- Mark D. Studebaker <mdsxyz123@yahoo.com>,
- Dan Eaton <dan.eaton@rocketlogix.com> and
- Stephen Rousset<stephen.rousset@rocketlogix.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.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Copyright (c) 2000 Frodo Looijaard <frodol@dds.nl>,
+ * Philip Edelbrock <phil@netroedge.com>,
+ * Mark D. Studebaker <mdsxyz123@yahoo.com>,
+ * Dan Eaton <dan.eaton@rocketlogix.com> and
+ * Stephen Rousset <stephen.rousset@rocketlogix.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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
@@ -254,8 +254,8 @@ static int ali1535_transaction(struct i2c_adapter *adap)
if (temp & (ALI1535_STS_ERR | ALI1535_STS_BUSY)) {
/* do a clear-on-write */
outb_p(0xFF, SMBHSTSTS);
- if ((temp = inb_p(SMBHSTSTS)) &
- (ALI1535_STS_ERR | ALI1535_STS_BUSY)) {
+ temp = inb_p(SMBHSTSTS);
+ if (temp & (ALI1535_STS_ERR | ALI1535_STS_BUSY)) {
/* This is probably going to be correctable only by a
* power reset as one of the bits now appears to be
* stuck */
@@ -267,9 +267,8 @@ static int ali1535_transaction(struct i2c_adapter *adap)
}
} else {
/* check and clear done bit */
- if (temp & ALI1535_STS_DONE) {
+ if (temp & ALI1535_STS_DONE)
outb_p(temp, SMBHSTSTS);
- }
}
/* start the transaction by writing anything to the start register */
@@ -278,7 +277,7 @@ static int ali1535_transaction(struct i2c_adapter *adap)
/* We will always wait for a fraction of a second! */
timeout = 0;
do {
- msleep(1);
+ usleep_range(1000, 2000);
temp = inb_p(SMBHSTSTS);
} while (((temp & ALI1535_STS_BUSY) && !(temp & ALI1535_STS_IDLE))
&& (timeout++ < MAX_TIMEOUT));
@@ -325,12 +324,12 @@ static int ali1535_transaction(struct i2c_adapter *adap)
/* take consequent actions for error conditions */
if (!(temp & ALI1535_STS_DONE)) {
/* issue "kill" to reset host controller */
- outb_p(ALI1535_KILL,SMBHSTTYP);
- outb_p(0xFF,SMBHSTSTS);
+ outb_p(ALI1535_KILL, SMBHSTTYP);
+ outb_p(0xFF, SMBHSTSTS);
} else if (temp & ALI1535_STS_ERR) {
/* issue "timeout" to reset all devices on bus */
- outb_p(ALI1535_T_OUT,SMBHSTTYP);
- outb_p(0xFF,SMBHSTSTS);
+ outb_p(ALI1535_T_OUT, SMBHSTTYP);
+ outb_p(0xFF, SMBHSTSTS);
}
return result;
@@ -351,7 +350,7 @@ static s32 ali1535_access(struct i2c_adapter *adap, u16 addr,
for (timeout = 0;
(timeout < MAX_TIMEOUT) && !(temp & ALI1535_STS_IDLE);
timeout++) {
- msleep(1);
+ usleep_range(1000, 2000);
temp = inb_p(SMBHSTSTS);
}
if (timeout >= MAX_TIMEOUT)
@@ -480,12 +479,12 @@ static struct i2c_adapter ali1535_adapter = {
.algo = &smbus_algorithm,
};
-static const struct pci_device_id ali1535_ids[] = {
+static DEFINE_PCI_DEVICE_TABLE(ali1535_ids) = {
{ PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101) },
{ },
};
-MODULE_DEVICE_TABLE (pci, ali1535_ids);
+MODULE_DEVICE_TABLE(pci, ali1535_ids);
static int __devinit ali1535_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
diff --git a/drivers/i2c/busses/i2c-cpm.c b/drivers/i2c/busses/i2c-cpm.c
index 3a20961bef1e..b1d9cd28d8da 100644
--- a/drivers/i2c/busses/i2c-cpm.c
+++ b/drivers/i2c/busses/i2c-cpm.c
@@ -662,11 +662,8 @@ static int __devinit cpm_i2c_probe(struct platform_device *ofdev)
/* register new adapter to i2c module... */
data = of_get_property(ofdev->dev.of_node, "linux,i2c-index", &len);
- if (data && len == 4) {
- cpm->adap.nr = *data;
- result = i2c_add_numbered_adapter(&cpm->adap);
- } else
- result = i2c_add_adapter(&cpm->adap);
+ cpm->adap.nr = (data && len == 4) ? be32_to_cpup(data) : -1;
+ result = i2c_add_numbered_adapter(&cpm->adap);
if (result < 0) {
dev_err(&ofdev->dev, "Unable to register with I2C\n");
diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c
index 8abfa4a03ce1..ce1a32b71e47 100644
--- a/drivers/i2c/busses/i2c-eg20t.c
+++ b/drivers/i2c/busses/i2c-eg20t.c
@@ -673,32 +673,33 @@ static s32 pch_i2c_xfer(struct i2c_adapter *i2c_adap,
/* transfer not completed */
adap->pch_i2c_xfer_in_progress = true;
- pmsg = &msgs[0];
- pmsg->flags |= adap->pch_buff_mode_en;
- status = pmsg->flags;
- pch_dbg(adap,
- "After invoking I2C_MODE_SEL :flag= 0x%x\n", status);
- /* calculate sub address length and message length */
- /* these are applicable only for buffer mode */
- subaddrlen = pmsg->buf[0];
- /* calculate actual message length excluding
- * the sub address fields */
- msglen = (pmsg->len) - (subaddrlen + 1);
- if (status & (I2C_M_RD)) {
- pch_dbg(adap, "invoking pch_i2c_readbytes\n");
- ret = pch_i2c_readbytes(i2c_adap, pmsg, (i + 1 == num),
- (i == 0));
- } else {
- pch_dbg(adap, "invoking pch_i2c_writebytes\n");
- ret = pch_i2c_writebytes(i2c_adap, pmsg, (i + 1 == num),
- (i == 0));
+ for (i = 0; i < num && ret >= 0; i++) {
+ pmsg = &msgs[i];
+ pmsg->flags |= adap->pch_buff_mode_en;
+ status = pmsg->flags;
+ pch_dbg(adap,
+ "After invoking I2C_MODE_SEL :flag= 0x%x\n", status);
+ /* calculate sub address length and message length */
+ /* these are applicable only for buffer mode */
+ subaddrlen = pmsg->buf[0];
+ /* calculate actual message length excluding
+ * the sub address fields */
+ msglen = (pmsg->len) - (subaddrlen + 1);
+
+ if ((status & (I2C_M_RD)) != false) {
+ ret = pch_i2c_readbytes(i2c_adap, pmsg, (i + 1 == num),
+ (i == 0));
+ } else {
+ ret = pch_i2c_writebytes(i2c_adap, pmsg, (i + 1 == num),
+ (i == 0));
+ }
}
adap->pch_i2c_xfer_in_progress = false; /* transfer completed */
mutex_unlock(&pch_mutex);
- return ret;
+ return (ret < 0) ? ret : num;
}
/**
diff --git a/drivers/i2c/busses/i2c-highlander.c b/drivers/i2c/busses/i2c-highlander.c
index 3df1bc80f37a..3876a2478bd7 100644
--- a/drivers/i2c/busses/i2c-highlander.c
+++ b/drivers/i2c/busses/i2c-highlander.c
@@ -227,7 +227,7 @@ static int highlander_i2c_read(struct highlander_i2c_dev *dev)
/*
* The R0P7780LC0011RL FPGA needs a significant delay between
- * data read cycles, otherwise the transciever gets confused and
+ * data read cycles, otherwise the transceiver gets confused and
* garbage is returned when the read is subsequently aborted.
*
* It is not sufficient to wait for BBSY.
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 58a58c7eaa17..1a766cf74f6b 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -204,7 +204,7 @@ struct omap_i2c_dev {
u16 errata;
};
-const static u8 reg_map[] = {
+static const u8 reg_map[] = {
[OMAP_I2C_REV_REG] = 0x00,
[OMAP_I2C_IE_REG] = 0x01,
[OMAP_I2C_STAT_REG] = 0x02,
@@ -225,7 +225,7 @@ const static u8 reg_map[] = {
[OMAP_I2C_BUFSTAT_REG] = 0x10,
};
-const static u8 omap4_reg_map[] = {
+static const u8 omap4_reg_map[] = {
[OMAP_I2C_REV_REG] = 0x04,
[OMAP_I2C_IE_REG] = 0x2c,
[OMAP_I2C_STAT_REG] = 0x28,
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index f59224a5c761..d60364650990 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -1079,7 +1079,7 @@ static int i2c_pxa_probe(struct platform_device *dev)
* The reason to do so is to avoid sysfs names that only make
* sense when there are multiple adapters.
*/
- i2c->adap.nr = dev->id != -1 ? dev->id : 0;
+ i2c->adap.nr = dev->id;
snprintf(i2c->adap.name, sizeof(i2c->adap.name), "pxa_i2c-i2c.%u",
i2c->adap.nr);
@@ -1142,10 +1142,7 @@ static int i2c_pxa_probe(struct platform_device *dev)
i2c->adap.dev.of_node = dev->dev.of_node;
#endif
- if (i2c_type == REGS_CE4100)
- ret = i2c_add_adapter(&i2c->adap);
- else
- ret = i2c_add_numbered_adapter(&i2c->adap);
+ ret = i2c_add_numbered_adapter(&i2c->adap);
if (ret < 0) {
printk(KERN_INFO "I2C: Failed to add bus\n");
goto eadapt;
diff --git a/drivers/i2c/busses/i2c-s6000.c b/drivers/i2c/busses/i2c-s6000.c
index cb5d01e279c6..c64ba736f480 100644
--- a/drivers/i2c/busses/i2c-s6000.c
+++ b/drivers/i2c/busses/i2c-s6000.c
@@ -341,10 +341,7 @@ static int __devinit s6i2c_probe(struct platform_device *dev)
i2c_wr16(iface, S6_I2C_TXTL, 0);
platform_set_drvdata(dev, iface);
- if (bus_num < 0)
- rc = i2c_add_adapter(p_adap);
- else
- rc = i2c_add_numbered_adapter(p_adap);
+ rc = i2c_add_numbered_adapter(p_adap);
if (rc)
goto err_irq_free;
return 0;
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index fb3b4f8f8152..2440b7411978 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -26,6 +26,7 @@
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/i2c-tegra.h>
+#include <linux/of_i2c.h>
#include <asm/unaligned.h>
@@ -546,6 +547,7 @@ static int tegra_i2c_probe(struct platform_device *pdev)
struct resource *iomem;
struct clk *clk;
struct clk *i2c_clk;
+ const unsigned int *prop;
void *base;
int irq;
int ret = 0;
@@ -603,7 +605,17 @@ static int tegra_i2c_probe(struct platform_device *pdev)
i2c_dev->irq = irq;
i2c_dev->cont_id = pdev->id;
i2c_dev->dev = &pdev->dev;
- i2c_dev->bus_clk_rate = pdata ? pdata->bus_clk_rate : 100000;
+
+ i2c_dev->bus_clk_rate = 100000; /* default clock rate */
+ if (pdata) {
+ i2c_dev->bus_clk_rate = pdata->bus_clk_rate;
+
+ } else if (i2c_dev->dev->of_node) { /* if there is a device tree node ... */
+ prop = of_get_property(i2c_dev->dev->of_node,
+ "clock-frequency", NULL);
+ if (prop)
+ i2c_dev->bus_clk_rate = be32_to_cpup(prop);
+ }
if (pdev->id == 3)
i2c_dev->is_dvc = 1;
@@ -633,6 +645,7 @@ static int tegra_i2c_probe(struct platform_device *pdev)
i2c_dev->adapter.algo = &tegra_i2c_algo;
i2c_dev->adapter.dev.parent = &pdev->dev;
i2c_dev->adapter.nr = pdev->id;
+ i2c_dev->adapter.dev.of_node = pdev->dev.of_node;
ret = i2c_add_numbered_adapter(&i2c_dev->adapter);
if (ret) {
@@ -640,6 +653,8 @@ static int tegra_i2c_probe(struct platform_device *pdev)
goto err_free_irq;
}
+ of_i2c_register_devices(&i2c_dev->adapter);
+
return 0;
err_free_irq:
free_irq(i2c_dev->irq, i2c_dev);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-24 18:27:01 +0300