Need to fetch it via aux.
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 24 +++++++++++++++----
1 file changed, 20 insertions(+), 4 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 175a4cd8b982..fb1ad1426cd1 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -3273,11 +3273,27 @@ static int amdgpu_dm_backlight_update_status(struct backlight_device *bd)
static int amdgpu_dm_backlight_get_brightness(struct backlight_device *bd)
{
struct amdgpu_display_manager *dm = bl_get_data(bd);
- int ret = dc_link_get_backlight_level(dm->backlight_link);
+ struct amdgpu_dm_backlight_caps caps;
+
+ amdgpu_dm_update_backlight_caps(dm);
+ caps = dm->backlight_caps;
- if (ret == DC_ERROR_UNEXPECTED)
- return bd->props.brightness;
- return convert_brightness_to_user(&dm->backlight_caps, ret);
+ if (caps.aux_support) {
+ struct dc_link *link = (struct dc_link *)dm->backlight_link;
+ u32 avg, peak;
+ bool rc;
+
+ rc = dc_link_get_backlight_level_nits(link, &avg, &peak);
+ if (!rc)
+ return bd->props.brightness;
+ return convert_brightness_to_user(&caps, avg);
+ } else {
+ int ret = dc_link_get_backlight_level(dm->backlight_link);
+
+ if (ret == DC_ERROR_UNEXPECTED)
+ return bd->props.brightness;
+ return convert_brightness_to_user(&caps, ret);
+ }
}
static const struct backlight_ops amdgpu_dm_backlight_ops = {
--
2.29.2
_______________________________________________
amd-gfx mailing list
amd-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
