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media: mgb4: Fix DV timings limits

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Provide the real DV timings limits in VIDIOC_DV_TIMINGS_CAP. For the
outputs the pixelclock is limited by the CMT table <25000kHz, 2*94642kHz>,
for the inputs a slightly broader range is possible. The minimal
supported/tested resolution is 64px.

Signed-off-by: Martin Tůma <martin.tuma@digiteqautomotive.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Martin Tůma 2026-03-25 13:01:18 +01:00 committed by Hans Verkuil
parent 0bcbfd1c11
commit 65e0242c37
2 changed files with 8 additions and 8 deletions
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8
drivers/media/pci/mgb4/mgb4_vin.c
View File

@ -85,12 +85,12 @@ static const struct mgb4_i2c_kv gmsl1_i2c[] = {
static const struct v4l2_dv_timings_cap video_timings_cap = {
.type = V4L2_DV_BT_656_1120,
.bt = {
.min_width = 240,
.min_width = 64,
.max_width = 4096,
.min_height = 240,
.min_height = 64,
.max_height = 4096,
.min_pixelclock = 1843200, /* 320 x 240 x 24Hz */
.max_pixelclock = 530841600, /* 4096 x 2160 x 60Hz */
.min_pixelclock = 20000000,
.max_pixelclock = 200000000,
.standards = V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
V4L2_DV_BT_STD_CVT | V4L2_DV_BT_STD_GTF,
.capabilities = V4L2_DV_BT_CAP_PROGRESSIVE |

8
drivers/media/pci/mgb4/mgb4_vout.c
View File

@ -53,12 +53,12 @@ static const struct mgb4_i2c_kv gmsl1_i2c[] = {
static const struct v4l2_dv_timings_cap video_timings_cap = {
.type = V4L2_DV_BT_656_1120,
.bt = {
.min_width = 240,
.min_width = 64,
.max_width = 4096,
.min_height = 240,
.min_height = 64,
.max_height = 4096,
.min_pixelclock = 1843200, /* 320 x 240 x 24Hz */
.max_pixelclock = 530841600, /* 4096 x 2160 x 60Hz */
.min_pixelclock = 25000000,
.max_pixelclock = 189284000,
.standards = V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
V4L2_DV_BT_STD_CVT | V4L2_DV_BT_STD_GTF,
.capabilities = V4L2_DV_BT_CAP_PROGRESSIVE |