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path: root/drivers/media/common/saa7146_i2c.c
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Diffstat (limited to 'drivers/media/common/saa7146_i2c.c')
-rw-r--r--drivers/media/common/saa7146_i2c.c60
1 files changed, 31 insertions, 29 deletions
diff --git a/drivers/media/common/saa7146_i2c.c b/drivers/media/common/saa7146_i2c.c
index b2ba9dc..2202719 100644
--- a/drivers/media/common/saa7146_i2c.c
+++ b/drivers/media/common/saa7146_i2c.c
@@ -1,8 +1,10 @@
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <media/saa7146_vv.h>
static u32 saa7146_i2c_func(struct i2c_adapter *adapter)
{
-//fm DEB_I2C(("'%s'.\n", adapter->name));
+ /* DEB_I2C("'%s'\n", adapter->name); */
return I2C_FUNC_I2C
| I2C_FUNC_SMBUS_QUICK
@@ -14,9 +16,7 @@ static u32 saa7146_i2c_func(struct i2c_adapter *adapter)
static inline u32 saa7146_i2c_status(struct saa7146_dev *dev)
{
u32 iicsta = saa7146_read(dev, I2C_STATUS);
-/*
- DEB_I2C(("status: 0x%08x\n",iicsta));
-*/
+ /* DEB_I2C("status: 0x%08x\n", iicsta); */
return iicsta;
}
@@ -39,10 +39,11 @@ static int saa7146_i2c_msg_prepare(const struct i2c_msg *m, int num, __le32 *op)
plus one extra byte to address the device */
mem = 1 + ((mem-1) / 3);
- /* we assume that op points to a memory of at least SAA7146_I2C_MEM bytes
- size. if we exceed this limit... */
- if ( (4*mem) > SAA7146_I2C_MEM ) {
-//fm DEB_I2C(("cannot prepare i2c-message.\n"));
+ /* we assume that op points to a memory of at least
+ * SAA7146_I2C_MEM bytes size. if we exceed this limit...
+ */
+ if ((4 * mem) > SAA7146_I2C_MEM) {
+ /* DEB_I2C("cannot prepare i2c-message\n"); */
return -ENOMEM;
}
@@ -123,7 +124,7 @@ static int saa7146_i2c_reset(struct saa7146_dev *dev)
if ( 0 != ( status & SAA7146_I2C_BUSY) ) {
/* yes, kill ongoing operation */
- DEB_I2C(("busy_state detected.\n"));
+ DEB_I2C("busy_state detected\n");
/* set "ABORT-OPERATION"-bit (bit 7)*/
saa7146_write(dev, I2C_STATUS, (dev->i2c_bitrate | MASK_07));
@@ -141,7 +142,7 @@ static int saa7146_i2c_reset(struct saa7146_dev *dev)
if ( dev->i2c_bitrate != status ) {
- DEB_I2C(("error_state detected. status:0x%08x\n",status));
+ DEB_I2C("error_state detected. status:0x%08x\n", status);
/* Repeat the abort operation. This seems to be necessary
after serious protocol errors caused by e.g. the SAA7740 */
@@ -164,7 +165,7 @@ static int saa7146_i2c_reset(struct saa7146_dev *dev)
/* if any error is still present, a fatal error has occurred ... */
status = saa7146_i2c_status(dev);
if ( dev->i2c_bitrate != status ) {
- DEB_I2C(("fatal error. status:0x%08x\n",status));
+ DEB_I2C("fatal error. status:0x%08x\n", status);
return -1;
}
@@ -181,7 +182,8 @@ static int saa7146_i2c_writeout(struct saa7146_dev *dev, __le32 *dword, int shor
unsigned long timeout;
/* write out i2c-command */
- DEB_I2C(("before: 0x%08x (status: 0x%08x), %d\n",*dword,saa7146_read(dev, I2C_STATUS), dev->i2c_op));
+ DEB_I2C("before: 0x%08x (status: 0x%08x), %d\n",
+ *dword, saa7146_read(dev, I2C_STATUS), dev->i2c_op);
if( 0 != (SAA7146_USE_I2C_IRQ & dev->ext->flags)) {
@@ -202,7 +204,7 @@ static int saa7146_i2c_writeout(struct saa7146_dev *dev, __le32 *dword, int shor
/* a signal arrived */
return -ERESTARTSYS;
- printk(KERN_WARNING "%s %s [irq]: timed out waiting for end of xfer\n",
+ pr_warn("%s %s [irq]: timed out waiting for end of xfer\n",
dev->name, __func__);
return -EIO;
}
@@ -220,7 +222,7 @@ static int saa7146_i2c_writeout(struct saa7146_dev *dev, __le32 *dword, int shor
break;
}
if (time_after(jiffies,timeout)) {
- printk(KERN_WARNING "%s %s: timed out waiting for MC2\n",
+ pr_warn("%s %s: timed out waiting for MC2\n",
dev->name, __func__);
return -EIO;
}
@@ -237,7 +239,7 @@ static int saa7146_i2c_writeout(struct saa7146_dev *dev, __le32 *dword, int shor
/* this is normal when probing the bus
* (no answer from nonexisistant device...)
*/
- printk(KERN_WARNING "%s %s [poll]: timed out waiting for end of xfer\n",
+ pr_warn("%s %s [poll]: timed out waiting for end of xfer\n",
dev->name, __func__);
return -EIO;
}
@@ -257,24 +259,24 @@ static int saa7146_i2c_writeout(struct saa7146_dev *dev, __le32 *dword, int shor
if ( 0 == (status & SAA7146_I2C_ERR) ||
0 == (status & SAA7146_I2C_BUSY) ) {
/* it may take some time until ERR goes high - ignore */
- DEB_I2C(("unexpected i2c status %04x\n", status));
+ DEB_I2C("unexpected i2c status %04x\n", status);
}
if( 0 != (status & SAA7146_I2C_SPERR) ) {
- DEB_I2C(("error due to invalid start/stop condition.\n"));
+ DEB_I2C("error due to invalid start/stop condition\n");
}
if( 0 != (status & SAA7146_I2C_DTERR) ) {
- DEB_I2C(("error in data transmission.\n"));
+ DEB_I2C("error in data transmission\n");
}
if( 0 != (status & SAA7146_I2C_DRERR) ) {
- DEB_I2C(("error when receiving data.\n"));
+ DEB_I2C("error when receiving data\n");
}
if( 0 != (status & SAA7146_I2C_AL) ) {
- DEB_I2C(("error because arbitration lost.\n"));
+ DEB_I2C("error because arbitration lost\n");
}
/* we handle address-errors here */
if( 0 != (status & SAA7146_I2C_APERR) ) {
- DEB_I2C(("error in address phase.\n"));
+ DEB_I2C("error in address phase\n");
return -EREMOTEIO;
}
@@ -284,7 +286,7 @@ static int saa7146_i2c_writeout(struct saa7146_dev *dev, __le32 *dword, int shor
/* read back data, just in case we were reading ... */
*dword = cpu_to_le32(saa7146_read(dev, I2C_TRANSFER));
- DEB_I2C(("after: 0x%08x\n",*dword));
+ DEB_I2C("after: 0x%08x\n", *dword);
return 0;
}
@@ -299,7 +301,7 @@ static int saa7146_i2c_transfer(struct saa7146_dev *dev, const struct i2c_msg *m
return -ERESTARTSYS;
for(i=0;i<num;i++) {
- DEB_I2C(("msg:%d/%d\n",i+1,num));
+ DEB_I2C("msg:%d/%d\n", i+1, num);
}
/* prepare the message(s), get number of u32s to transfer */
@@ -316,7 +318,7 @@ static int saa7146_i2c_transfer(struct saa7146_dev *dev, const struct i2c_msg *m
/* reset the i2c-device if necessary */
err = saa7146_i2c_reset(dev);
if ( 0 > err ) {
- DEB_I2C(("could not reset i2c-device.\n"));
+ DEB_I2C("could not reset i2c-device\n");
goto out;
}
@@ -336,7 +338,7 @@ static int saa7146_i2c_transfer(struct saa7146_dev *dev, const struct i2c_msg *m
address error and trust the saa7146 address error detection. */
if (-EREMOTEIO == err && 0 != (SAA7146_USE_I2C_IRQ & dev->ext->flags))
goto out;
- DEB_I2C(("error while sending message(s). starting again.\n"));
+ DEB_I2C("error while sending message(s). starting again\n");
break;
}
}
@@ -356,13 +358,13 @@ static int saa7146_i2c_transfer(struct saa7146_dev *dev, const struct i2c_msg *m
/* if any things had to be read, get the results */
if ( 0 != saa7146_i2c_msg_cleanup(msgs, num, buffer)) {
- DEB_I2C(("could not cleanup i2c-message.\n"));
+ DEB_I2C("could not cleanup i2c-message\n");
err = -1;
goto out;
}
/* return the number of delivered messages */
- DEB_I2C(("transmission successful. (msg:%d).\n",err));
+ DEB_I2C("transmission successful. (msg:%d)\n", err);
out:
/* another bug in revision 0: the i2c-registers get uploaded randomly by other
uploads, so we better clear them out before continuing */
@@ -370,7 +372,7 @@ out:
__le32 zero = 0;
saa7146_i2c_reset(dev);
if( 0 != saa7146_i2c_writeout(dev, &zero, short_delay)) {
- INFO(("revision 0 error. this should never happen.\n"));
+ pr_info("revision 0 error. this should never happen\n");
}
}
@@ -400,7 +402,7 @@ static struct i2c_algorithm saa7146_algo = {
int saa7146_i2c_adapter_prepare(struct saa7146_dev *dev, struct i2c_adapter *i2c_adapter, u32 bitrate)
{
- DEB_EE(("bitrate: 0x%08x\n",bitrate));
+ DEB_EE("bitrate: 0x%08x\n", bitrate);
/* enable i2c-port pins */
saa7146_write(dev, MC1, (MASK_08 | MASK_24));
generated by cgit v1.1 at 2024-04-26 14:01:03 +0000