From: Mikhail Khelik <mkhelik@xxxxxxxxx>
The driver strength is board dependent, so set it from the platform_data.
Signed-off-by: Mikhail Khelik <mkhelik@xxxxxxxxx>
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
---
drivers/media/i2c/adv7604.c | 7 ++++++-
include/media/adv7604.h | 5 +++++
2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
index 6372d31..99734b2 100644
--- a/drivers/media/i2c/adv7604.c
+++ b/drivers/media/i2c/adv7604.c
@@ -1942,7 +1942,12 @@ static int adv7604_core_init(struct v4l2_subdev *sd)
/* TODO from platform data */
cp_write(sd, 0x69, 0x30); /* Enable CP CSC */
io_write(sd, 0x06, 0xa6); /* positive VS and HS */
- io_write(sd, 0x14, 0x7f); /* Drive strength adjusted to max */
+
+ /* Adjust drive strength */
+ io_write(sd, 0x14, 0x40 | pdata->dr_str << 4 |
+ pdata->dr_str_clk << 2 |
+ pdata->dr_str_sync);
+
cp_write(sd, 0xba, (pdata->hdmi_free_run_mode << 1) | 0x01); /* HDMI free run */
cp_write(sd, 0xf3, 0xdc); /* Low threshold to enter/exit free run mode */
cp_write(sd, 0xf9, 0x23); /* STDI ch. 1 - LCVS change threshold -
diff --git a/include/media/adv7604.h b/include/media/adv7604.h
index 0c96e16..0e13d1b 100644
--- a/include/media/adv7604.h
+++ b/include/media/adv7604.h
@@ -110,6 +110,11 @@ struct adv7604_platform_data {
unsigned replicate_av_codes:1;
unsigned invert_cbcr:1;
+ /* IO register 0x14 */
+ unsigned dr_str:2;
+ unsigned dr_str_clk:2;
+ unsigned dr_str_sync:2;
+
/* IO register 0x30 */
unsigned output_bus_lsb_to_msb:1;
--
1.8.4.rc3
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