V4L/DVB (13657): tw9910: Add revision control to tw9910_set_hsync
Bits 10-3 of hsync control are the same for Rev0 and Rev1, but only Rev1
also has bits 2-0 for hsync. Account for this difference and also fix a
register name.
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/tw9910.c b/drivers/media/video/tw9910.c
index 2256ba6..8ec1031 100644
--- a/drivers/media/video/tw9910.c
+++ b/drivers/media/video/tw9910.c
@@ -117,7 +117,7 @@
#define LCTL24 0x68
#define LCTL25 0x69
#define LCTL26 0x6A
-#define HSGEGIN 0x6B
+#define HSBEGIN 0x6B
#define HSEND 0x6C
#define OVSDLY 0x6D
#define OVSEND 0x6E
@@ -443,10 +443,11 @@
static int tw9910_set_hsync(struct i2c_client *client,
const struct tw9910_hsync_ctrl *hsync)
{
+ struct tw9910_priv *priv = to_tw9910(client);
int ret;
/* bit 10 - 3 */
- ret = i2c_smbus_write_byte_data(client, HSGEGIN,
+ ret = i2c_smbus_write_byte_data(client, HSBEGIN,
(hsync->start & 0x07F8) >> 3);
if (ret < 0)
return ret;
@@ -457,10 +458,12 @@
if (ret < 0)
return ret;
+ /* So far only revisions 0 and 1 have been seen */
/* bit 2 - 0 */
- ret = tw9910_mask_set(client, HSLOWCTL, 0x77,
- (hsync->start & 0x0007) << 4 |
- (hsync->end & 0x0007));
+ if (1 == priv->revision)
+ ret = tw9910_mask_set(client, HSLOWCTL, 0x77,
+ (hsync->start & 0x0007) << 4 |
+ (hsync->end & 0x0007));
return ret;
}
