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| author | Robert Foss <robert.foss@linaro.org> | 2020-11-20 13:59:25 +0100 |
|---|---|---|
| committer | Sumit Semwal <sumit.semwal@linaro.org> | 2021-01-08 11:56:12 +0530 |
| commit | 7281c58e1d7810a7b1752fe4af1ed09652b07b54 (patch) | |
| tree | 2fcf47b146578ee9c99656691b1167cfd1638070 | |
| parent | e71ba9452f0b5b2e8dc8aa5445198cd9214a6a62 (diff) | |
drm/bridge: Handle unsupported panels
Some panels are currently supported by lt9611, but not by the display itself.
This causes issues where a mode unsupported by the display driver is picked
by the bridge.
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
| -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..f93a1fa50893 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 || !lt9611) + 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) |