V4L/DVB (3568i): adv7175: Drop unused register cache
Drop the adv7175 register cache, as it is only written to and never read back
from. This saves 128 bytes of memory and slightly speeds up the register
writes.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/adv7175.c b/drivers/media/video/adv7175.c
index 4e218f2..245f942 100644
--- a/drivers/media/video/adv7175.c
+++ b/drivers/media/video/adv7175.c
@@ -68,8 +68,6 @@
/* ----------------------------------------------------------------------- */
struct adv7175 {
- unsigned char reg[128];
-
int norm;
int input;
int enable;
@@ -95,9 +93,6 @@
u8 reg,
u8 value)
{
- struct adv7175 *encoder = i2c_get_clientdata(client);
-
- encoder->reg[reg] = value;
return i2c_smbus_write_byte_data(client, reg, value);
}
@@ -120,7 +115,6 @@
* the adapter understands raw I2C */
if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
/* do raw I2C, not smbus compatible */
- struct adv7175 *encoder = i2c_get_clientdata(client);
struct i2c_msg msg;
u8 block_data[32];
@@ -131,8 +125,8 @@
msg.len = 0;
block_data[msg.len++] = reg = data[0];
do {
- block_data[msg.len++] =
- encoder->reg[reg++] = data[1];
+ block_data[msg.len++] = data[1];
+ reg++;
len -= 2;
data += 2;
} while (len >= 2 && data[0] == reg &&