From: Mats Randgaard <matrandg@xxxxxxxxx>
Signed-off-by: Mats Randgaard <matrandg@xxxxxxxxx>
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
---
drivers/media/i2c/adv7604.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
index 7d95a28..fa98229 100644
--- a/drivers/media/i2c/adv7604.c
+++ b/drivers/media/i2c/adv7604.c
@@ -1479,7 +1479,11 @@ static int adv7604_s_routing(struct v4l2_subdev *sd,
{
struct adv7604_state *state = to_state(sd);
- v4l2_dbg(2, debug, sd, "%s: input %d", __func__, input);
+ v4l2_dbg(2, debug, sd, "%s: input %d, selected input %d",
+ __func__, input, state->selected_input);
+
+ if (input == state->selected_input)
+ return 0;
state->selected_input = input;
@@ -1524,6 +1528,8 @@ static int adv7604_isr(struct v4l2_subdev *sd, u32 status, bool *handled)
u8 fmt_change, fmt_change_digital, tx_5v;
u32 input_status;
+ v4l2_dbg(2, debug, sd, "%s: ", __func__);
+
/* format change */
fmt_change = io_read(sd, 0x43) & 0x98;
if (fmt_change)
@@ -2124,6 +2130,7 @@ static int adv7604_probe(struct i2c_client *client,
/* initialize variables */
state->restart_stdi_once = true;
state->prev_input_status = ~0;
+ state->selected_input = ~0;
/* platform data */
if (!pdata) {
--
1.8.4.rc3
--
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