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| author | Robert Foss <robert.foss@linaro.org> | 2020-12-17 15:09:33 +0100 |
|---|---|---|
| committer | Robert Foss <robert.foss@linaro.org> | 2021-03-25 16:18:31 +0100 |
| commit | d1a97648ae028a44536927c87837c45ada7141c9 (patch) | |
| tree | 91a38e05a84e3e09237e29547c8e9619d0405fc1 /drivers/gpu/drm/bridge/lontium-lt9611.c | |
| parent | MAINTAINERS: Update Maintainers of DRM Bridge Drivers (diff) | |
| download | linux-d1a97648ae028a44536927c87837c45ada7141c9.tar.xz linux-d1a97648ae028a44536927c87837c45ada7141c9.zip | |
drm/bridge: lt9611: Fix handling of 4k panels
4k requires two dsi pipes, so don't report MODE_OK when only a
single pipe is configured. But rather report MODE_PANEL to
signal that requirements of the panel are not being met.
Reported-by: Peter Collingbourne <pcc@google.com>
Suggested-by: Peter Collingbourne <pcc@google.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Tested-by: John Stultz <john.stultz@linaro.org>
Tested-by: Anibal Limon <anibal.limon@linaro.org>
Tested-by: Peter Collingbourne <pcc@google.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20201217140933.1133969-1-robert.foss@linaro.org
Diffstat (limited to 'drivers/gpu/drm/bridge/lontium-lt9611.c')
| -rw-r--r-- | drivers/gpu/drm/bridge/lontium-lt9611.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c index d734d9402c35..e8eb8deb444b 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611.c @@ -867,8 +867,14 @@ static enum drm_mode_status lt9611_bridge_mode_valid(struct drm_bridge *bridge, const struct drm_display_mode *mode) { struct lt9611_mode *lt9611_mode = lt9611_find_mode(mode); + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); - return lt9611_mode ? MODE_OK : MODE_BAD; + if (!lt9611_mode) + return MODE_BAD; + else if (lt9611_mode->intfs > 1 && !lt9611->dsi1) + return MODE_PANEL; + else + return MODE_OK; } static void lt9611_bridge_pre_enable(struct drm_bridge *bridge) |