diff options
| author | Philipp Zabel <p.zabel@pengutronix.de> | 2018-06-28 19:20:41 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-09-17 20:27:59 +0300 |
| commit | 1569586688a0a82713441bade3e831524da38109 (patch) | |
| tree | 7ac7eb17564f7ec26502f489e5944ded3a85de82 /drivers/media/i2c/tvp5150.c | |
| parent | b440b7337352ef3c8265c8a89c0d43091cfd9008 (diff) | |
| download | linux-1569586688a0a82713441bade3e831524da38109.tar.xz | |
media: tvp5150: fix standard autodetection
Make sure to not overwrite decoder->norm when setting the standard
in hardware, but only when instructed by V4L2 API calls.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/i2c/tvp5150.c')
| -rw-r--r-- | drivers/media/i2c/tvp5150.c | 56 |
1 files changed, 31 insertions, 25 deletions
diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c index d84dac3b37d4..82ecbbfd45f3 100644 --- a/drivers/media/i2c/tvp5150.c +++ b/drivers/media/i2c/tvp5150.c @@ -736,8 +736,6 @@ static int tvp5150_set_std(struct v4l2_subdev *sd, v4l2_std_id std) struct tvp5150 *decoder = to_tvp5150(sd); int fmt = 0; - decoder->norm = std; - /* First tests should be against specific std */ if (std == V4L2_STD_NTSC_443) { @@ -774,13 +772,37 @@ static int tvp5150_s_std(struct v4l2_subdev *sd, v4l2_std_id std) else decoder->rect.height = TVP5150_V_MAX_OTHERS; + decoder->norm = std; return tvp5150_set_std(sd, std); } +static v4l2_std_id tvp5150_read_std(struct v4l2_subdev *sd) +{ + int val = tvp5150_read(sd, TVP5150_STATUS_REG_5); + + switch (val & 0x0F) { + case 0x01: + return V4L2_STD_NTSC; + case 0x03: + return V4L2_STD_PAL; + case 0x05: + return V4L2_STD_PAL_M; + case 0x07: + return V4L2_STD_PAL_N | V4L2_STD_PAL_Nc; + case 0x09: + return V4L2_STD_NTSC_443; + case 0xb: + return V4L2_STD_SECAM; + default: + return V4L2_STD_UNKNOWN; + } +} + static int tvp5150_reset(struct v4l2_subdev *sd, u32 val) { struct tvp5150 *decoder = to_tvp5150(sd); + v4l2_std_id std; /* Initializes TVP5150 to its default values */ tvp5150_write_inittab(sd, tvp5150_init_default); @@ -797,7 +819,13 @@ static int tvp5150_reset(struct v4l2_subdev *sd, u32 val) /* Initialize image preferences */ v4l2_ctrl_handler_setup(&decoder->hdl); - tvp5150_set_std(sd, decoder->norm); + if (decoder->norm == V4L2_STD_ALL) + std = tvp5150_read_std(sd); + else + std = decoder->norm; + + /* Disable autoswitch mode */ + tvp5150_set_std(sd, std); if (decoder->mbus_type == V4L2_MBUS_PARALLEL) /* 8-bit 4:2:2 YUV with discrete sync output */ @@ -834,28 +862,6 @@ static int tvp5150_s_ctrl(struct v4l2_ctrl *ctrl) return -EINVAL; } -static v4l2_std_id tvp5150_read_std(struct v4l2_subdev *sd) -{ - int val = tvp5150_read(sd, TVP5150_STATUS_REG_5); - - switch (val & 0x0F) { - case 0x01: - return V4L2_STD_NTSC; - case 0x03: - return V4L2_STD_PAL; - case 0x05: - return V4L2_STD_PAL_M; - case 0x07: - return V4L2_STD_PAL_N | V4L2_STD_PAL_Nc; - case 0x09: - return V4L2_STD_NTSC_443; - case 0xb: - return V4L2_STD_SECAM; - default: - return V4L2_STD_UNKNOWN; - } -} - static void tvp5150_set_default(v4l2_std_id std, struct v4l2_rect *crop) { /* Default is no cropping */ |