Add support for reduced fps (i.e. 59.94 Hz instead of 60 Hz) for the
HDMI output.
Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
---
drivers/media/pci/cobalt/cobalt-v4l2.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/media/pci/cobalt/cobalt-v4l2.c
b/drivers/media/pci/cobalt/cobalt-v4l2.c
index 5790095..3fea246 100644
--- a/drivers/media/pci/cobalt/cobalt-v4l2.c
+++ b/drivers/media/pci/cobalt/cobalt-v4l2.c
@@ -161,8 +161,11 @@ static void cobalt_enable_output(struct cobalt_stream *s)
struct v4l2_subdev_format sd_fmt = {
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
};
+ u64 clk = bt->pixelclock;
- if (!cobalt_cpld_set_freq(cobalt, bt->pixelclock)) {
+ if (bt->flags & V4L2_DV_FL_REDUCED_FPS)
+ clk = div_u64(clk * 1000ULL, 1001);
+ if (!cobalt_cpld_set_freq(cobalt, clk)) {
cobalt_err("pixelclock out of range\n");
return;
}
@@ -644,7 +647,7 @@ static int cobalt_s_dv_timings(struct file *file, void
*priv_fh,
return 0;
}
- if (v4l2_match_dv_timings(timings, &s->timings, 0, false))
+ if (v4l2_match_dv_timings(timings, &s->timings, 0, true))
return 0;
if (vb2_is_busy(&s->q))
--
2.8.1
--
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