diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-14 07:36:49 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-14 07:36:49 +0200 |
| commit | 97856e59384de326174360a780038113fea19f42 (patch) | |
| tree | 6b4d9e5fb0e93e0274a7d2626276e5d475824568 /drivers/gpu/drm/bridge/tc358767.c | |
| parent | 40688bd58df71269d146996e10e84ca3888fd330 (diff) | |
| parent | 4f5cafb5cb8471e54afdc9054d973535614f7675 (diff) | |
Merge 5.4-rc3 into char-misc-next
We need the char/misc fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/bridge/tc358767.c')
| -rw-r--r-- | drivers/gpu/drm/bridge/tc358767.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index cebc8e620820..8a8d605021f0 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -728,6 +728,8 @@ static int tc_set_video_mode(struct tc_data *tc, int lower_margin = mode->vsync_start - mode->vdisplay; int vsync_len = mode->vsync_end - mode->vsync_start; u32 dp0_syncval; + u32 bits_per_pixel = 24; + u32 in_bw, out_bw; /* * Recommended maximum number of symbols transferred in a transfer unit: @@ -735,7 +737,10 @@ static int tc_set_video_mode(struct tc_data *tc, * (output active video bandwidth in bytes)) * Must be less than tu_size. */ - max_tu_symbol = TU_SIZE_RECOMMENDED - 1; + + in_bw = mode->clock * bits_per_pixel / 8; + out_bw = tc->link.base.num_lanes * tc->link.base.rate; + max_tu_symbol = DIV_ROUND_UP(in_bw * TU_SIZE_RECOMMENDED, out_bw); dev_dbg(tc->dev, "set mode %dx%d\n", mode->hdisplay, mode->vdisplay); |