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drm: panel-backlight-quirks: Log applied panel brightness quirks

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Currently, when a panel brightness quirk is applied, there is no log
indicating that a quirk was applied. Unwrap the drm device on its own
and use drm_info() to log when a quirk is applied.

Suggested-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250829145541.512671-7-lkml@antheas.dev
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
(Correct a missing -1 in the message math)
Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
This commit is contained in:
Antheas Kapenekakis
2025-08-29 16:55:41 +02:00
committed by Mario Limonciello (AMD)
parent bf0365b005
commit a3ae3384be
1 changed files with 13 additions and 3 deletions
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16
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@@ -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;
}
}
}