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-rw-r--r--drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 156f2aae6828..18f0e0912ea6 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -3617,13 +3617,15 @@ static void update_connector_ext_caps(struct amdgpu_dm_connector *aconnector)
struct drm_connector *conn_base;
struct amdgpu_device *adev;
struct drm_luminance_range_info *luminance_range;
+ struct drm_device *drm;
if (aconnector->bl_idx == -1 ||
aconnector->dc_link->connector_signal != SIGNAL_TYPE_EDP)
return;
conn_base = &aconnector->base;
- adev = drm_to_adev(conn_base->dev);
+ drm = conn_base->dev;
+ adev = drm_to_adev(drm);
caps = &adev->dm.backlight_caps[aconnector->bl_idx];
caps->ext_caps = &aconnector->dc_link->dpcd_sink_ext_caps;
@@ -3659,12 +3661,20 @@ static void update_connector_ext_caps(struct amdgpu_dm_connector *aconnector)
panel_backlight_quirk =
drm_get_panel_backlight_quirk(aconnector->drm_edid);
if (!IS_ERR_OR_NULL(panel_backlight_quirk)) {
- if (panel_backlight_quirk->min_brightness)
+ if (panel_backlight_quirk->min_brightness) {
caps->min_input_signal =
panel_backlight_quirk->min_brightness - 1;
- if (panel_backlight_quirk->brightness_mask)
+ drm_info(drm,
+ "Applying panel backlight quirk, min_brightness: %d\n",
+ caps->min_input_signal);
+ }
+ if (panel_backlight_quirk->brightness_mask) {
+ drm_info(drm,
+ "Applying panel backlight quirk, brightness_mask: 0x%X\n",
+ panel_backlight_quirk->brightness_mask);
caps->brightness_mask =
panel_backlight_quirk->brightness_mask;
+ }
}
}