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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>
This commit is contained in:
Jean Delvare 2006-03-22 03:48:34 -03:00 committed by Mauro Carvalho Chehab
parent 2f8de1a106
commit 2467a670ee
1 changed files with 2 additions and 8 deletions
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10
drivers/media/video/adv7175.c
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@ -68,8 +68,6 @@ MODULE_PARM_DESC(debug, "Debug level (0-1)");
/* ----------------------------------------------------------------------- */
struct adv7175 {
unsigned char reg[128];
int norm;
int input;
int enable;
@ -95,9 +93,6 @@ adv7175_write (struct i2c_client *client,
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 @@ adv7175_write_block (struct i2c_client *client,
* 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 @@ adv7175_write_block (struct i2c_client *client,
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 &&