Messages in this thread Patch in this message | | | Date | Mon, 13 Mar 2006 21:30:53 +0100 | From | Jean Delvare <> | Subject | [PATCH 3/8] saa7114: Fix i2c block write |
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Fix the i2c block write mode of the saa7114 driver. A previous code change accidentally commented out a local variable increment, which should have been kept, causing the register writes over the I2C bus to never be batched, replacing any attempted block write by slower, individual write transactions.
Also drop the commented out code, as it only adds to confusion.
Signed-off-by: Jean Delvare <khali@linux-fr.org> --- drivers/media/video/saa7114.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-)
--- linux-2.6.16-rc5.orig/drivers/media/video/saa7114.c 2006-03-01 21:09:59.000000000 +0100 +++ linux-2.6.16-rc5/drivers/media/video/saa7114.c 2006-03-01 21:10:10.000000000 +0100 @@ -138,9 +138,6 @@ u8 reg, u8 value) { - /*struct saa7114 *decoder = i2c_get_clientdata(client);*/ - - /*decoder->reg[reg] = value;*/ return i2c_smbus_write_byte_data(client, reg, value); } @@ -156,7 +153,6 @@ * the adapter understands raw I2C */ if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { /* do raw I2C, not smbus compatible */ - /*struct saa7114 *decoder = i2c_get_clientdata(client);*/ struct i2c_msg msg; u8 block_data[32]; @@ -167,8 +163,8 @@ msg.len = 0; block_data[msg.len++] = reg = data[0]; do { - block_data[msg.len++] = - /*decoder->reg[reg++] =*/ data[1]; + block_data[msg.len++] = data[1]; + reg++; len -= 2; data += 2; } while (len >= 2 && data[0] == reg && -- Jean Delvare - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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