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-rw-r--r--drivers/i2c/busses/i2c-ali1563.c8
-rw-r--r--drivers/i2c/busses/i2c-bfin-twi.c6
-rw-r--r--drivers/i2c/busses/i2c-omap.c13
-rw-r--r--drivers/i2c/busses/i2c-pca-isa.c4
-rw-r--r--drivers/i2c/busses/i2c-pca-platform.c4
-rw-r--r--drivers/i2c/busses/i2c-piix4.c4
-rw-r--r--drivers/i2c/busses/i2c-viapro.c4
-rw-r--r--drivers/i2c/i2c-core.c7
8 files changed, 31 insertions, 19 deletions
diff --git a/drivers/i2c/busses/i2c-ali1563.c b/drivers/i2c/busses/i2c-ali1563.c
index f70f46582c6c..4687af40dd50 100644
--- a/drivers/i2c/busses/i2c-ali1563.c
+++ b/drivers/i2c/busses/i2c-ali1563.c
@@ -87,9 +87,9 @@ static int ali1563_transaction(struct i2c_adapter * a, int size)
outb_p(inb_p(SMB_HST_CNTL2) | HST_CNTL2_START, SMB_HST_CNTL2);
timeout = ALI1563_MAX_TIMEOUT;
- do
+ do {
msleep(1);
- while (((data = inb_p(SMB_HST_STS)) & HST_STS_BUSY) && --timeout);
+ } while (((data = inb_p(SMB_HST_STS)) & HST_STS_BUSY) && --timeout);
dev_dbg(&a->dev, "Transaction (post): STS=%02x, CNTL1=%02x, "
"CNTL2=%02x, CMD=%02x, ADD=%02x, DAT0=%02x, DAT1=%02x\n",
@@ -157,9 +157,9 @@ static int ali1563_block_start(struct i2c_adapter * a)
outb_p(inb_p(SMB_HST_CNTL2) | HST_CNTL2_START, SMB_HST_CNTL2);
timeout = ALI1563_MAX_TIMEOUT;
- do
+ do {
msleep(1);
- while (!((data = inb_p(SMB_HST_STS)) & HST_STS_DONE) && --timeout);
+ } while (!((data = inb_p(SMB_HST_STS)) & HST_STS_DONE) && --timeout);
dev_dbg(&a->dev, "Block (post): STS=%02x, CNTL1=%02x, "
"CNTL2=%02x, CMD=%02x, ADD=%02x, DAT0=%02x, DAT1=%02x\n",
diff --git a/drivers/i2c/busses/i2c-bfin-twi.c b/drivers/i2c/busses/i2c-bfin-twi.c
index b309ac2c3d5c..fe3fb567317d 100644
--- a/drivers/i2c/busses/i2c-bfin-twi.c
+++ b/drivers/i2c/busses/i2c-bfin-twi.c
@@ -693,13 +693,13 @@ static int i2c_bfin_twi_probe(struct platform_device *pdev)
}
/* Set TWI internal clock as 10MHz */
- write_CONTROL(iface, ((get_sclk() / 1024 / 1024 + 5) / 10) & 0x7F);
+ write_CONTROL(iface, ((get_sclk() / 1000 / 1000 + 5) / 10) & 0x7F);
/*
* We will not end up with a CLKDIV=0 because no one will specify
- * 20kHz SCL or less in Kconfig now. (5 * 1024 / 20 = 0x100)
+ * 20kHz SCL or less in Kconfig now. (5 * 1000 / 20 = 250)
*/
- clkhilow = 5 * 1024 / CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ;
+ clkhilow = ((10 * 1000 / CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ) + 1) / 2;
/* Set Twi interface clock as specified */
write_CLKDIV(iface, (clkhilow << 8) | clkhilow);
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 75bf3ad18099..0037e31076ba 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -247,7 +247,13 @@ static void omap_i2c_unidle(struct omap_i2c_dev *dev)
omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, OMAP_I2C_CON_EN);
}
dev->idle = 0;
- omap_i2c_write_reg(dev, OMAP_I2C_IE_REG, dev->iestate);
+
+ /*
+ * Don't write to this register if the IE state is 0 as it can
+ * cause deadlock.
+ */
+ if (dev->iestate)
+ omap_i2c_write_reg(dev, OMAP_I2C_IE_REG, dev->iestate);
}
static void omap_i2c_idle(struct omap_i2c_dev *dev)
@@ -280,6 +286,11 @@ static int omap_i2c_init(struct omap_i2c_dev *dev)
unsigned long internal_clk = 0;
if (dev->rev >= OMAP_I2C_REV_2) {
+ /* Disable I2C controller before soft reset */
+ omap_i2c_write_reg(dev, OMAP_I2C_CON_REG,
+ omap_i2c_read_reg(dev, OMAP_I2C_CON_REG) &
+ ~(OMAP_I2C_CON_EN));
+
omap_i2c_write_reg(dev, OMAP_I2C_SYSC_REG, SYSC_SOFTRESET_MASK);
/* For some reason we need to set the EN bit before the
* reset done bit gets set. */
diff --git a/drivers/i2c/busses/i2c-pca-isa.c b/drivers/i2c/busses/i2c-pca-isa.c
index 0ed68e2ccd22..f7346a9bd95f 100644
--- a/drivers/i2c/busses/i2c-pca-isa.c
+++ b/drivers/i2c/busses/i2c-pca-isa.c
@@ -75,7 +75,7 @@ static int pca_isa_waitforcompletion(void *pd)
unsigned long timeout;
if (irq > -1) {
- ret = wait_event_interruptible_timeout(pca_wait,
+ ret = wait_event_timeout(pca_wait,
pca_isa_readbyte(pd, I2C_PCA_CON)
& I2C_PCA_CON_SI, pca_isa_ops.timeout);
} else {
@@ -96,7 +96,7 @@ static void pca_isa_resetchip(void *pd)
}
static irqreturn_t pca_handler(int this_irq, void *dev_id) {
- wake_up_interruptible(&pca_wait);
+ wake_up(&pca_wait);
return IRQ_HANDLED;
}
diff --git a/drivers/i2c/busses/i2c-pca-platform.c b/drivers/i2c/busses/i2c-pca-platform.c
index c4df9d411cd5..5b2213df5ed0 100644
--- a/drivers/i2c/busses/i2c-pca-platform.c
+++ b/drivers/i2c/busses/i2c-pca-platform.c
@@ -84,7 +84,7 @@ static int i2c_pca_pf_waitforcompletion(void *pd)
unsigned long timeout;
if (i2c->irq) {
- ret = wait_event_interruptible_timeout(i2c->wait,
+ ret = wait_event_timeout(i2c->wait,
i2c->algo_data.read_byte(i2c, I2C_PCA_CON)
& I2C_PCA_CON_SI, i2c->adap.timeout);
} else {
@@ -122,7 +122,7 @@ static irqreturn_t i2c_pca_pf_handler(int this_irq, void *dev_id)
if ((i2c->algo_data.read_byte(i2c, I2C_PCA_CON) & I2C_PCA_CON_SI) == 0)
return IRQ_NONE;
- wake_up_interruptible(&i2c->wait);
+ wake_up(&i2c->wait);
return IRQ_HANDLED;
}
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index 1e245e9cad31..e56e4b6823ca 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -324,12 +324,12 @@ static int piix4_transaction(void)
else
msleep(1);
- while ((timeout++ < MAX_TIMEOUT) &&
+ while ((++timeout < MAX_TIMEOUT) &&
((temp = inb_p(SMBHSTSTS)) & 0x01))
msleep(1);
/* If the SMBus is still busy, we give up */
- if (timeout >= MAX_TIMEOUT) {
+ if (timeout == MAX_TIMEOUT) {
dev_err(&piix4_adapter.dev, "SMBus Timeout!\n");
result = -ETIMEDOUT;
}
diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c
index e4b1543015af..a84a909e1234 100644
--- a/drivers/i2c/busses/i2c-viapro.c
+++ b/drivers/i2c/busses/i2c-viapro.c
@@ -165,10 +165,10 @@ static int vt596_transaction(u8 size)
do {
msleep(1);
temp = inb_p(SMBHSTSTS);
- } while ((temp & 0x01) && (timeout++ < MAX_TIMEOUT));
+ } while ((temp & 0x01) && (++timeout < MAX_TIMEOUT));
/* If the SMBus is still busy, we give up */
- if (timeout >= MAX_TIMEOUT) {
+ if (timeout == MAX_TIMEOUT) {
result = -ETIMEDOUT;
dev_err(&vt596_adapter.dev, "SMBus timeout!\n");
}
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 0ac2f90ab840..10be7b5fbe97 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -248,7 +248,7 @@ static const struct attribute_group *i2c_dev_attr_groups[] = {
NULL
};
-const static struct dev_pm_ops i2c_device_pm_ops = {
+static const struct dev_pm_ops i2c_device_pm_ops = {
.suspend = i2c_device_pm_suspend,
.resume = i2c_device_pm_resume,
};
@@ -843,6 +843,9 @@ int i2c_del_adapter(struct i2c_adapter *adap)
adap->dev.parent);
#endif
+ /* device name is gone after device_unregister */
+ dev_dbg(&adap->dev, "adapter [%s] unregistered\n", adap->name);
+
/* clean up the sysfs representation */
init_completion(&adap->dev_released);
device_unregister(&adap->dev);
@@ -855,8 +858,6 @@ int i2c_del_adapter(struct i2c_adapter *adap)
idr_remove(&i2c_adapter_idr, adap->nr);
mutex_unlock(&core_lock);
- dev_dbg(&adap->dev, "adapter [%s] unregistered\n", adap->name);
-
/* Clear the device structure in case this adapter is ever going to be
added again */
memset(&adap->dev, 0, sizeof(adap->dev));
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 00:42:39 +0000