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path: root/drivers/media/video/usbvision/usbvision-i2c.c
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Diffstat (limited to 'drivers/media/video/usbvision/usbvision-i2c.c')
-rw-r--r--drivers/media/video/usbvision/usbvision-i2c.c46
1 files changed, 12 insertions, 34 deletions
diff --git a/drivers/media/video/usbvision/usbvision-i2c.c b/drivers/media/video/usbvision/usbvision-i2c.c
index d7f97513b28..89fec029e92 100644
--- a/drivers/media/video/usbvision/usbvision-i2c.c
+++ b/drivers/media/video/usbvision/usbvision-i2c.c
@@ -110,42 +110,20 @@ static inline int usb_find_address(struct i2c_adapter *i2c_adap,
unsigned char addr;
int ret;
- if ((flags & I2C_M_TEN)) {
- /* a ten bit address */
- addr = 0xf0 | ((msg->addr >> 7) & 0x03);
- /* try extended address code... */
- ret = try_write_address(i2c_adap, addr, retries);
- if (ret != 1) {
- dev_err(&i2c_adap->dev,
- "died at extended address code, while writing\n");
- return -EREMOTEIO;
- }
- add[0] = addr;
- if (flags & I2C_M_RD) {
- /* okay, now switch into reading mode */
- addr |= 0x01;
- ret = try_read_address(i2c_adap, addr, retries);
- if (ret != 1) {
- dev_err(&i2c_adap->dev,
- "died at extended address code, while reading\n");
- return -EREMOTEIO;
- }
- }
- } else { /* normal 7bit address */
- addr = (msg->addr << 1);
- if (flags & I2C_M_RD)
- addr |= 1;
+ addr = (msg->addr << 1);
+ if (flags & I2C_M_RD)
+ addr |= 1;
- add[0] = addr;
- if (flags & I2C_M_RD)
- ret = try_read_address(i2c_adap, addr, retries);
- else
- ret = try_write_address(i2c_adap, addr, retries);
+ add[0] = addr;
+ if (flags & I2C_M_RD)
+ ret = try_read_address(i2c_adap, addr, retries);
+ else
+ ret = try_write_address(i2c_adap, addr, retries);
+
+ if (ret != 1)
+ return -EREMOTEIO;
- if (ret != 1)
- return -EREMOTEIO;
- }
return 0;
}
@@ -184,7 +162,7 @@ usbvision_i2c_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msgs[], int num)
static u32 functionality(struct i2c_adapter *adap)
{
- return I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR;
+ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
}
/* -----exported algorithm data: ------------------------------------- */