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authorRob Clark <robdclark@chromium.org>2021-12-06 20:13:49 +0300
committerRob Clark <robdclark@chromium.org>2021-12-06 20:14:28 +0300
commit83b965d118cbab1dbdfffdff8cabc8c1cfd183c6 (patch)
treef46a8f6d854b05a47311125f6fd6b6081e79557a /drivers/gpu/drm/nouveau/nouveau_backlight.c
parentfee32807633395e666f0951d6b7b6546e9b76c3d (diff)
parentc305ae99dfd4d0fe70c7fdf13ef5f7650a804ea7 (diff)
downloadlinux-83b965d118cbab1dbdfffdff8cabc8c1cfd183c6.tar.xz
Merge remote-tracking branch 'drm/drm-next' into msm-next-staging
Backmerge drm-next to pull in: 8f59ee9a570c ("drm/msm/dsi: Adjust probe order") Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_backlight.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_backlight.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_backlight.c b/drivers/gpu/drm/nouveau/nouveau_backlight.c
index 1cbd71abc80a..ae2f2abc8f5a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_backlight.c
+++ b/drivers/gpu/drm/nouveau/nouveau_backlight.c
@@ -308,7 +308,10 @@ nv50_backlight_init(struct nouveau_backlight *bl,
if (ret < 0)
return ret;
- if (drm_edp_backlight_supported(edp_dpcd)) {
+ /* TODO: Add support for hybrid PWM/DPCD panels */
+ if (drm_edp_backlight_supported(edp_dpcd) &&
+ (edp_dpcd[1] & DP_EDP_BACKLIGHT_AUX_ENABLE_CAP) &&
+ (edp_dpcd[2] & DP_EDP_BACKLIGHT_BRIGHTNESS_AUX_SET_CAP)) {
NV_DEBUG(drm, "DPCD backlight controls supported on %s\n",
nv_conn->base.name);