[v3,6/9,media] tvp5150: trigger autodetection on subdev open to reset cropping
Commit Message
From: Philipp Zabel <p.zabel@pengutronix.de>
If cropping isn't set explicitly by userspace, reset it to the maximum
possible rectangle in subdevice open if a standard change is detected.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
drivers/media/i2c/tvp5150.c | 18 +++++++++++++-----
1 file changed, 13 insertions(+), 5 deletions(-)
@@ -46,6 +46,7 @@ struct tvp5150 {
struct regmap *regmap;
v4l2_std_id norm; /* Current set standard */
+ v4l2_std_id detected_norm;
u32 input;
u32 output;
int enable;
@@ -1220,13 +1221,19 @@ static int tvp5150_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
struct tvp5150 *decoder = to_tvp5150(sd);
v4l2_std_id std;
- if (decoder->norm == V4L2_STD_ALL)
+ if (decoder->norm == V4L2_STD_ALL) {
std = tvp5150_read_std(sd);
- else
- std = decoder->norm;
+ if (std != decoder->detected_norm) {
+ decoder->detected_norm = std;
+
+ if (std & V4L2_STD_525_60)
+ decoder->rect.height = TVP5150_V_MAX_525_60;
+ else
+ decoder->rect.height = TVP5150_V_MAX_OTHERS;
+ decoder->format.height = decoder->rect.height;
+ }
+ }
- tvp5150_set_default(std, v4l2_subdev_get_try_crop(fh, 0),
- v4l2_subdev_get_try_format(fh, 0));
return 0;
}
#endif
@@ -1443,6 +1450,7 @@ static int tvp5150_probe(struct i2c_client *c,
}
core->norm = V4L2_STD_ALL; /* Default is autodetect */
+ core->detected_norm = V4L2_STD_UNKNOWN;
core->input = TVP5150_COMPOSITE1;
core->enable = 1;