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-rw-r--r--drivers/i2c/busses/Makefile4
-rw-r--r--drivers/i2c/busses/i2c-amd8111.c163
-rw-r--r--drivers/i2c/busses/i2c-cpm.c5
-rw-r--r--drivers/i2c/busses/i2c-davinci.c24
-rw-r--r--drivers/i2c/busses/i2c-ibm_iic.c4
-rw-r--r--drivers/i2c/busses/i2c-imx.c12
-rw-r--r--drivers/i2c/busses/i2c-mpc.c1
-rw-r--r--drivers/i2c/busses/i2c-nuc900.c1
-rw-r--r--drivers/i2c/busses/i2c-octeon.c2
-rw-r--r--drivers/i2c/busses/i2c-pasemi.c2
-rw-r--r--drivers/i2c/busses/i2c-pca-isa.c12
-rw-r--r--drivers/i2c/busses/i2c-pca-platform.c13
-rw-r--r--drivers/i2c/busses/i2c-pxa.c1
-rw-r--r--drivers/i2c/busses/i2c-s3c2410.c5
-rw-r--r--drivers/i2c/busses/i2c-sh7760.c4
-rw-r--r--drivers/i2c/busses/i2c-sh_mobile.c23
-rw-r--r--drivers/i2c/busses/i2c-viapro.c8
17 files changed, 177 insertions, 107 deletions
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index c3ef49230cba..033ad413f328 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -76,6 +76,4 @@ obj-$(CONFIG_I2C_STUB) += i2c-stub.o
obj-$(CONFIG_SCx200_ACB) += scx200_acb.o
obj-$(CONFIG_SCx200_I2C) += scx200_i2c.o
-ifeq ($(CONFIG_I2C_DEBUG_BUS),y)
-EXTRA_CFLAGS += -DDEBUG
-endif
+ccflags-$(CONFIG_I2C_DEBUG_BUS) := -DDEBUG
diff --git a/drivers/i2c/busses/i2c-amd8111.c b/drivers/i2c/busses/i2c-amd8111.c
index af1e5e254b7b..6b6a6b1d7025 100644
--- a/drivers/i2c/busses/i2c-amd8111.c
+++ b/drivers/i2c/busses/i2c-amd8111.c
@@ -69,7 +69,7 @@ static struct pci_driver amd8111_driver;
* ACPI 2.0 chapter 13 access of registers of the EC
*/
-static unsigned int amd_ec_wait_write(struct amd_smbus *smbus)
+static int amd_ec_wait_write(struct amd_smbus *smbus)
{
int timeout = 500;
@@ -85,7 +85,7 @@ static unsigned int amd_ec_wait_write(struct amd_smbus *smbus)
return 0;
}
-static unsigned int amd_ec_wait_read(struct amd_smbus *smbus)
+static int amd_ec_wait_read(struct amd_smbus *smbus)
{
int timeout = 500;
@@ -101,7 +101,7 @@ static unsigned int amd_ec_wait_read(struct amd_smbus *smbus)
return 0;
}
-static unsigned int amd_ec_read(struct amd_smbus *smbus, unsigned char address,
+static int amd_ec_read(struct amd_smbus *smbus, unsigned char address,
unsigned char *data)
{
int status;
@@ -124,7 +124,7 @@ static unsigned int amd_ec_read(struct amd_smbus *smbus, unsigned char address,
return 0;
}
-static unsigned int amd_ec_write(struct amd_smbus *smbus, unsigned char address,
+static int amd_ec_write(struct amd_smbus *smbus, unsigned char address,
unsigned char data)
{
int status;
@@ -196,7 +196,7 @@ static s32 amd8111_access(struct i2c_adapter * adap, u16 addr,
{
struct amd_smbus *smbus = adap->algo_data;
unsigned char protocol, len, pec, temp[2];
- int i;
+ int i, status;
protocol = (read_write == I2C_SMBUS_READ) ? AMD_SMB_PRTCL_READ
: AMD_SMB_PRTCL_WRITE;
@@ -209,38 +209,62 @@ static s32 amd8111_access(struct i2c_adapter * adap, u16 addr,
break;
case I2C_SMBUS_BYTE:
- if (read_write == I2C_SMBUS_WRITE)
- amd_ec_write(smbus, AMD_SMB_CMD, command);
+ if (read_write == I2C_SMBUS_WRITE) {
+ status = amd_ec_write(smbus, AMD_SMB_CMD,
+ command);
+ if (status)
+ return status;
+ }
protocol |= AMD_SMB_PRTCL_BYTE;
break;
case I2C_SMBUS_BYTE_DATA:
- amd_ec_write(smbus, AMD_SMB_CMD, command);
- if (read_write == I2C_SMBUS_WRITE)
- amd_ec_write(smbus, AMD_SMB_DATA, data->byte);
+ status = amd_ec_write(smbus, AMD_SMB_CMD, command);
+ if (status)
+ return status;
+ if (read_write == I2C_SMBUS_WRITE) {
+ status = amd_ec_write(smbus, AMD_SMB_DATA,
+ data->byte);
+ if (status)
+ return status;
+ }
protocol |= AMD_SMB_PRTCL_BYTE_DATA;
break;
case I2C_SMBUS_WORD_DATA:
- amd_ec_write(smbus, AMD_SMB_CMD, command);
+ status = amd_ec_write(smbus, AMD_SMB_CMD, command);
+ if (status)
+ return status;
if (read_write == I2C_SMBUS_WRITE) {
- amd_ec_write(smbus, AMD_SMB_DATA,
- data->word & 0xff);
- amd_ec_write(smbus, AMD_SMB_DATA + 1,
- data->word >> 8);
+ status = amd_ec_write(smbus, AMD_SMB_DATA,
+ data->word & 0xff);
+ if (status)
+ return status;
+ status = amd_ec_write(smbus, AMD_SMB_DATA + 1,
+ data->word >> 8);
+ if (status)
+ return status;
}
protocol |= AMD_SMB_PRTCL_WORD_DATA | pec;
break;
case I2C_SMBUS_BLOCK_DATA:
- amd_ec_write(smbus, AMD_SMB_CMD, command);
+ status = amd_ec_write(smbus, AMD_SMB_CMD, command);
+ if (status)
+ return status;
if (read_write == I2C_SMBUS_WRITE) {
len = min_t(u8, data->block[0],
I2C_SMBUS_BLOCK_MAX);
- amd_ec_write(smbus, AMD_SMB_BCNT, len);
- for (i = 0; i < len; i++)
- amd_ec_write(smbus, AMD_SMB_DATA + i,
- data->block[i + 1]);
+ status = amd_ec_write(smbus, AMD_SMB_BCNT, len);
+ if (status)
+ return status;
+ for (i = 0; i < len; i++) {
+ status =
+ amd_ec_write(smbus, AMD_SMB_DATA + i,
+ data->block[i + 1]);
+ if (status)
+ return status;
+ }
}
protocol |= AMD_SMB_PRTCL_BLOCK_DATA | pec;
break;
@@ -248,19 +272,35 @@ static s32 amd8111_access(struct i2c_adapter * adap, u16 addr,
case I2C_SMBUS_I2C_BLOCK_DATA:
len = min_t(u8, data->block[0],
I2C_SMBUS_BLOCK_MAX);
- amd_ec_write(smbus, AMD_SMB_CMD, command);
- amd_ec_write(smbus, AMD_SMB_BCNT, len);
+ status = amd_ec_write(smbus, AMD_SMB_CMD, command);
+ if (status)
+ return status;
+ status = amd_ec_write(smbus, AMD_SMB_BCNT, len);
+ if (status)
+ return status;
if (read_write == I2C_SMBUS_WRITE)
- for (i = 0; i < len; i++)
- amd_ec_write(smbus, AMD_SMB_DATA + i,
- data->block[i + 1]);
+ for (i = 0; i < len; i++) {
+ status =
+ amd_ec_write(smbus, AMD_SMB_DATA + i,
+ data->block[i + 1]);
+ if (status)
+ return status;
+ }
protocol |= AMD_SMB_PRTCL_I2C_BLOCK_DATA;
break;
case I2C_SMBUS_PROC_CALL:
- amd_ec_write(smbus, AMD_SMB_CMD, command);
- amd_ec_write(smbus, AMD_SMB_DATA, data->word & 0xff);
- amd_ec_write(smbus, AMD_SMB_DATA + 1, data->word >> 8);
+ status = amd_ec_write(smbus, AMD_SMB_CMD, command);
+ if (status)
+ return status;
+ status = amd_ec_write(smbus, AMD_SMB_DATA,
+ data->word & 0xff);
+ if (status)
+ return status;
+ status = amd_ec_write(smbus, AMD_SMB_DATA + 1,
+ data->word >> 8);
+ if (status)
+ return status;
protocol = AMD_SMB_PRTCL_PROC_CALL | pec;
read_write = I2C_SMBUS_READ;
break;
@@ -268,11 +308,18 @@ static s32 amd8111_access(struct i2c_adapter * adap, u16 addr,
case I2C_SMBUS_BLOCK_PROC_CALL:
len = min_t(u8, data->block[0],
I2C_SMBUS_BLOCK_MAX - 1);
- amd_ec_write(smbus, AMD_SMB_CMD, command);
- amd_ec_write(smbus, AMD_SMB_BCNT, len);
- for (i = 0; i < len; i++)
- amd_ec_write(smbus, AMD_SMB_DATA + i,
- data->block[i + 1]);
+ status = amd_ec_write(smbus, AMD_SMB_CMD, command);
+ if (status)
+ return status;
+ status = amd_ec_write(smbus, AMD_SMB_BCNT, len);
+ if (status)
+ return status;
+ for (i = 0; i < len; i++) {
+ status = amd_ec_write(smbus, AMD_SMB_DATA + i,
+ data->block[i + 1]);
+ if (status)
+ return status;
+ }
protocol = AMD_SMB_PRTCL_BLOCK_PROC_CALL | pec;
read_write = I2C_SMBUS_READ;
break;
@@ -282,24 +329,29 @@ static s32 amd8111_access(struct i2c_adapter * adap, u16 addr,
return -EOPNOTSUPP;
}
- amd_ec_write(smbus, AMD_SMB_ADDR, addr << 1);
- amd_ec_write(smbus, AMD_SMB_PRTCL, protocol);
+ status = amd_ec_write(smbus, AMD_SMB_ADDR, addr << 1);
+ if (status)
+ return status;
+ status = amd_ec_write(smbus, AMD_SMB_PRTCL, protocol);
+ if (status)
+ return status;
- /* FIXME this discards status from ec_read(); so temp[0] will
- * hold stack garbage ... the rest of this routine will act
- * nonsensically. Ignored ec_write() status might explain
- * some such failures...
- */
- amd_ec_read(smbus, AMD_SMB_STS, temp + 0);
+ status = amd_ec_read(smbus, AMD_SMB_STS, temp + 0);
+ if (status)
+ return status;
if (~temp[0] & AMD_SMB_STS_DONE) {
udelay(500);
- amd_ec_read(smbus, AMD_SMB_STS, temp + 0);
+ status = amd_ec_read(smbus, AMD_SMB_STS, temp + 0);
+ if (status)
+ return status;
}
if (~temp[0] & AMD_SMB_STS_DONE) {
msleep(1);
- amd_ec_read(smbus, AMD_SMB_STS, temp + 0);
+ status = amd_ec_read(smbus, AMD_SMB_STS, temp + 0);
+ if (status)
+ return status;
}
if ((~temp[0] & AMD_SMB_STS_DONE) || (temp[0] & AMD_SMB_STS_STATUS))
@@ -311,24 +363,35 @@ static s32 amd8111_access(struct i2c_adapter * adap, u16 addr,
switch (size) {
case I2C_SMBUS_BYTE:
case I2C_SMBUS_BYTE_DATA:
- amd_ec_read(smbus, AMD_SMB_DATA, &data->byte);
+ status = amd_ec_read(smbus, AMD_SMB_DATA, &data->byte);
+ if (status)
+ return status;
break;
case I2C_SMBUS_WORD_DATA:
case I2C_SMBUS_PROC_CALL:
- amd_ec_read(smbus, AMD_SMB_DATA, temp + 0);
- amd_ec_read(smbus, AMD_SMB_DATA + 1, temp + 1);
+ status = amd_ec_read(smbus, AMD_SMB_DATA, temp + 0);
+ if (status)
+ return status;
+ status = amd_ec_read(smbus, AMD_SMB_DATA + 1, temp + 1);
+ if (status)
+ return status;
data->word = (temp[1] << 8) | temp[0];
break;
case I2C_SMBUS_BLOCK_DATA:
case I2C_SMBUS_BLOCK_PROC_CALL:
- amd_ec_read(smbus, AMD_SMB_BCNT, &len);
+ status = amd_ec_read(smbus, AMD_SMB_BCNT, &len);
+ if (status)
+ return status;
len = min_t(u8, len, I2C_SMBUS_BLOCK_MAX);
case I2C_SMBUS_I2C_BLOCK_DATA:
- for (i = 0; i < len; i++)
- amd_ec_read(smbus, AMD_SMB_DATA + i,
- data->block + i + 1);
+ for (i = 0; i < len; i++) {
+ status = amd_ec_read(smbus, AMD_SMB_DATA + i,
+ data->block + i + 1);
+ if (status)
+ return status;
+ }
data->block[0] = len;
break;
}
diff --git a/drivers/i2c/busses/i2c-cpm.c b/drivers/i2c/busses/i2c-cpm.c
index f7bd2613cecc..f2de3be35df3 100644
--- a/drivers/i2c/busses/i2c-cpm.c
+++ b/drivers/i2c/busses/i2c-cpm.c
@@ -677,6 +677,11 @@ static int __devinit cpm_i2c_probe(struct platform_device *ofdev,
dev_dbg(&ofdev->dev, "hw routines for %s registered.\n",
cpm->adap.name);
+ /*
+ * register OF I2C devices
+ */
+ of_i2c_register_devices(&cpm->adap);
+
return 0;
out_shut:
cpm_i2c_shutdown(cpm);
diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c
index 2222c87876b9..5795c8398c7c 100644
--- a/drivers/i2c/busses/i2c-davinci.c
+++ b/drivers/i2c/busses/i2c-davinci.c
@@ -331,21 +331,16 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop)
INIT_COMPLETION(dev->cmd_complete);
dev->cmd_err = 0;
- /* Take I2C out of reset, configure it as master and set the
- * start bit */
- flag = DAVINCI_I2C_MDR_IRS | DAVINCI_I2C_MDR_MST | DAVINCI_I2C_MDR_STT;
+ /* Take I2C out of reset and configure it as master */
+ flag = DAVINCI_I2C_MDR_IRS | DAVINCI_I2C_MDR_MST;
/* if the slave address is ten bit address, enable XA bit */
if (msg->flags & I2C_M_TEN)
flag |= DAVINCI_I2C_MDR_XA;
if (!(msg->flags & I2C_M_RD))
flag |= DAVINCI_I2C_MDR_TRX;
- if (stop)
- flag |= DAVINCI_I2C_MDR_STP;
- if (msg->len == 0) {
+ if (msg->len == 0)
flag |= DAVINCI_I2C_MDR_RM;
- flag &= ~DAVINCI_I2C_MDR_STP;
- }
/* Enable receive or transmit interrupts */
w = davinci_i2c_read_reg(dev, DAVINCI_I2C_IMR_REG);
@@ -357,7 +352,11 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop)
dev->terminate = 0;
- /* write the data into mode register */
+ /*
+ * Write mode register first as needed for correct behaviour
+ * on OMAP-L138, but don't set STT yet to avoid a race with XRDY
+ * occuring before we have loaded DXR
+ */
davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, flag);
/*
@@ -365,12 +364,19 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop)
* because transmit-data-ready interrupt can come before
* NACK-interrupt during sending of previous message and
* ICDXR may have wrong data
+ * It also saves us one interrupt, slightly faster
*/
if ((!(msg->flags & I2C_M_RD)) && dev->buf_len) {
davinci_i2c_write_reg(dev, DAVINCI_I2C_DXR_REG, *dev->buf++);
dev->buf_len--;
}
+ /* Set STT to begin transmit now DXR is loaded */
+ flag |= DAVINCI_I2C_MDR_STT;
+ if (stop && msg->len != 0)
+ flag |= DAVINCI_I2C_MDR_STP;
+ davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, flag);
+
r = wait_for_completion_interruptible_timeout(&dev->cmd_complete,
dev->adapter.timeout);
if (r == 0) {
diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index 43ca32fddde2..6e3c38240336 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -41,7 +41,6 @@
#include <asm/irq.h>
#include <linux/io.h>
#include <linux/i2c.h>
-#include <linux/i2c-id.h>
#include <linux/of_platform.h>
#include <linux/of_i2c.h>
@@ -761,6 +760,9 @@ static int __devinit iic_probe(struct platform_device *ofdev,
dev_info(&ofdev->dev, "using %s mode\n",
dev->fast_mode ? "fast (400 kHz)" : "standard (100 kHz)");
+ /* Now register all the child nodes */
+ of_i2c_register_devices(adap);
+
return 0;
error_cleanup:
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index d1ff9408dc1f..4c2a62b75b5c 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -159,15 +159,9 @@ static int i2c_imx_bus_busy(struct imx_i2c_struct *i2c_imx, int for_busy)
static int i2c_imx_trx_complete(struct imx_i2c_struct *i2c_imx)
{
- int result;
-
- result = wait_event_interruptible_timeout(i2c_imx->queue,
- i2c_imx->i2csr & I2SR_IIF, HZ / 10);
+ wait_event_timeout(i2c_imx->queue, i2c_imx->i2csr & I2SR_IIF, HZ / 10);
- if (unlikely(result < 0)) {
- dev_dbg(&i2c_imx->adapter.dev, "<%s> result < 0\n", __func__);
- return result;
- } else if (unlikely(!(i2c_imx->i2csr & I2SR_IIF))) {
+ if (unlikely(!(i2c_imx->i2csr & I2SR_IIF))) {
dev_dbg(&i2c_imx->adapter.dev, "<%s> Timeout\n", __func__);
return -ETIMEDOUT;
}
@@ -295,7 +289,7 @@ static irqreturn_t i2c_imx_isr(int irq, void *dev_id)
i2c_imx->i2csr = temp;
temp &= ~I2SR_IIF;
writeb(temp, i2c_imx->base + IMX_I2C_I2SR);
- wake_up_interruptible(&i2c_imx->queue);
+ wake_up(&i2c_imx->queue);
return IRQ_HANDLED;
}
diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c
index a1c419a716af..b74e6dc6886c 100644
--- a/drivers/i2c/busses/i2c-mpc.c
+++ b/drivers/i2c/busses/i2c-mpc.c
@@ -632,6 +632,7 @@ static int __devinit fsl_i2c_probe(struct platform_device *op,
dev_err(i2c->dev, "failed to add adapter\n");
goto fail_add;
}
+ of_i2c_register_devices(&i2c->adap);
return result;
diff --git a/drivers/i2c/busses/i2c-nuc900.c b/drivers/i2c/busses/i2c-nuc900.c
index 92d770d7bbc2..72434263787b 100644
--- a/drivers/i2c/busses/i2c-nuc900.c
+++ b/drivers/i2c/busses/i2c-nuc900.c
@@ -16,7 +16,6 @@
#include <linux/module.h>
#include <linux/i2c.h>
-#include <linux/i2c-id.h>
#include <linux/init.h>
#include <linux/time.h>
#include <linux/interrupt.h>
diff --git a/drivers/i2c/busses/i2c-octeon.c b/drivers/i2c/busses/i2c-octeon.c
index 0e9f85d0a835..56dbe54e8811 100644
--- a/drivers/i2c/busses/i2c-octeon.c
+++ b/drivers/i2c/busses/i2c-octeon.c
@@ -218,7 +218,7 @@ static int octeon_i2c_wait(struct octeon_i2c *i2c)
return result;
} else if (result == 0) {
dev_dbg(i2c->dev, "%s: timeout\n", __func__);
- result = -ETIMEDOUT;
+ return -ETIMEDOUT;
}
return 0;
diff --git a/drivers/i2c/busses/i2c-pasemi.c b/drivers/i2c/busses/i2c-pasemi.c
index 4174101660c9..837b8c1aa02a 100644
--- a/drivers/i2c/busses/i2c-pasemi.c
+++ b/drivers/i2c/busses/i2c-pasemi.c
@@ -88,7 +88,7 @@ static void pasemi_smb_clear(struct pasemi_smbus *smbus)
reg_write(smbus, REG_SMSTA, status);
}
-static unsigned int pasemi_smb_waitready(struct pasemi_smbus *smbus)
+static int pasemi_smb_waitready(struct pasemi_smbus *smbus)
{
int timeout = 10;
unsigned int status;
diff --git a/drivers/i2c/busses/i2c-pca-isa.c b/drivers/i2c/busses/i2c-pca-isa.c
index bbd77603a417..29933f87d8fa 100644
--- a/drivers/i2c/busses/i2c-pca-isa.c
+++ b/drivers/i2c/busses/i2c-pca-isa.c
@@ -71,8 +71,8 @@ static int pca_isa_readbyte(void *pd, int reg)
static int pca_isa_waitforcompletion(void *pd)
{
- long ret = ~0;
unsigned long timeout;
+ long ret;
if (irq > -1) {
ret = wait_event_timeout(pca_wait,
@@ -81,11 +81,15 @@ static int pca_isa_waitforcompletion(void *pd)
} else {
/* Do polling */
timeout = jiffies + pca_isa_ops.timeout;
- while (((pca_isa_readbyte(pd, I2C_PCA_CON)
- & I2C_PCA_CON_SI) == 0)
- && (ret = time_before(jiffies, timeout)))
+ do {
+ ret = time_before(jiffies, timeout);
+ if (pca_isa_readbyte(pd, I2C_PCA_CON)
+ & I2C_PCA_CON_SI)
+ break;
udelay(100);
+ } while (ret);
}
+
return ret > 0;
}
diff --git a/drivers/i2c/busses/i2c-pca-platform.c b/drivers/i2c/busses/i2c-pca-platform.c
index ef5c78487eb7..ace67995d7de 100644
--- a/drivers/i2c/busses/i2c-pca-platform.c
+++ b/drivers/i2c/busses/i2c-pca-platform.c
@@ -80,8 +80,8 @@ static void i2c_pca_pf_writebyte32(void *pd, int reg, int val)
static int i2c_pca_pf_waitforcompletion(void *pd)
{
struct i2c_pca_pf_data *i2c = pd;
- long ret = ~0;
unsigned long timeout;
+ long ret;
if (i2c->irq) {
ret = wait_event_timeout(i2c->wait,
@@ -90,10 +90,13 @@ static int i2c_pca_pf_waitforcompletion(void *pd)
} else {
/* Do polling */
timeout = jiffies + i2c->adap.timeout;
- while (((i2c->algo_data.read_byte(i2c, I2C_PCA_CON)
- & I2C_PCA_CON_SI) == 0)
- && (ret = time_before(jiffies, timeout)))
+ do {
+ ret = time_before(jiffies, timeout);
+ if (i2c->algo_data.read_byte(i2c, I2C_PCA_CON)
+ & I2C_PCA_CON_SI)
+ break;
udelay(100);
+ } while (ret);
}
return ret > 0;
@@ -221,7 +224,7 @@ static int __devinit i2c_pca_pf_probe(struct platform_device *pdev)
if (irq) {
ret = request_irq(irq, i2c_pca_pf_handler,
- IRQF_TRIGGER_FALLING, i2c->adap.name, i2c);
+ IRQF_TRIGGER_FALLING, pdev->name, i2c);
if (ret)
goto e_reqirq;
}
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index c94e51b2651e..f4c19a97e0b3 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -22,7 +22,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/i2c.h>
-#include <linux/i2c-id.h>
#include <linux/init.h>
#include <linux/time.h>
#include <linux/sched.h>
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 72902e0bbfa7..6a292ea5e35c 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -24,7 +24,6 @@
#include <linux/module.h>
#include <linux/i2c.h>
-#include <linux/i2c-id.h>
#include <linux/init.h>
#include <linux/time.h>
#include <linux/interrupt.h>
@@ -662,8 +661,8 @@ static int s3c24xx_i2c_clockrate(struct s3c24xx_i2c *i2c, unsigned int *got)
unsigned long sda_delay;
if (pdata->sda_delay) {
- sda_delay = (freq / 1000) * pdata->sda_delay;
- sda_delay /= 1000000;
+ sda_delay = clkin * pdata->sda_delay;
+ sda_delay = DIV_ROUND_UP(sda_delay, 1000000);
sda_delay = DIV_ROUND_UP(sda_delay, 5);
if (sda_delay > 3)
sda_delay = 3;
diff --git a/drivers/i2c/busses/i2c-sh7760.c b/drivers/i2c/busses/i2c-sh7760.c
index 4f93da31d3ad..3cad8fecc3d3 100644
--- a/drivers/i2c/busses/i2c-sh7760.c
+++ b/drivers/i2c/busses/i2c-sh7760.c
@@ -101,12 +101,12 @@ struct cami2c {
static inline void OUT32(struct cami2c *cam, int reg, unsigned long val)
{
- ctrl_outl(val, (unsigned long)cam->iobase + reg);
+ __raw_writel(val, (unsigned long)cam->iobase + reg);
}
static inline unsigned long IN32(struct cami2c *cam, int reg)
{
- return ctrl_inl((unsigned long)cam->iobase + reg);
+ return __raw_readl((unsigned long)cam->iobase + reg);
}
static irqreturn_t sh7760_i2c_irq(int irq, void *ptr)
diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c
index 598c49acaeb5..2707f5e17158 100644
--- a/drivers/i2c/busses/i2c-sh_mobile.c
+++ b/drivers/i2c/busses/i2c-sh_mobile.c
@@ -538,15 +538,17 @@ static int sh_mobile_i2c_hook_irqs(struct platform_device *dev, int hook)
{
struct resource *res;
int ret = -ENXIO;
- int q, m;
- int k = 0;
- int n = 0;
+ int n, k = 0;
while ((res = platform_get_resource(dev, IORESOURCE_IRQ, k))) {
for (n = res->start; hook && n <= res->end; n++) {
if (request_irq(n, sh_mobile_i2c_isr, IRQF_DISABLED,
- dev_name(&dev->dev), dev))
+ dev_name(&dev->dev), dev)) {
+ for (n--; n >= res->start; n--)
+ free_irq(n, dev);
+
goto rollback;
+ }
}
k++;
}
@@ -554,16 +556,17 @@ static int sh_mobile_i2c_hook_irqs(struct platform_device *dev, int hook)
if (hook)
return k > 0 ? 0 : -ENOENT;
- k--;
ret = 0;
rollback:
- for (q = k; k >= 0; k--) {
- for (m = n; m >= res->start; m--)
- free_irq(m, dev);
+ k--;
+
+ while (k >= 0) {
+ res = platform_get_resource(dev, IORESOURCE_IRQ, k);
+ for (n = res->start; n <= res->end; n++)
+ free_irq(n, dev);
- res = platform_get_resource(dev, IORESOURCE_IRQ, k - 1);
- m = res->end;
+ k--;
}
return ret;
diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c
index 4c6fff5f330d..0b012f1f8ac5 100644
--- a/drivers/i2c/busses/i2c-viapro.c
+++ b/drivers/i2c/busses/i2c-viapro.c
@@ -185,14 +185,8 @@ static int vt596_transaction(u8 size)
}
if (temp & 0x04) {
- int read = inb_p(SMBHSTADD) & 0x01;
result = -ENXIO;
- /* The quick and receive byte commands are used to probe
- for chips, so errors are expected, and we don't want
- to frighten the user. */
- if (!((size == VT596_QUICK && !read) ||
- (size == VT596_BYTE && read)))
- dev_err(&vt596_adapter.dev, "Transaction error!\n");
+ dev_dbg(&vt596_adapter.dev, "No response\n");
}
/* Resetting status register */
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