From: Swapnil Patel <Swapnil.Patel@xxxxxxx>
[why]
Currently if invalid luminescence range is reported in edid,
then the driver doesn't have default range to fallback to.
[How]
Add default range if, the range is 0.
Reviewed-by: Roman Li <Roman.Li@xxxxxxx>
Acked-by: Qingqing Zhuo <qingqing.zhuo@xxxxxxx>
Signed-off-by: Swapnil Patel <Swapnil.Patel@xxxxxxx>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 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 8af58bba503f..51afc937308a 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -3012,8 +3012,14 @@ static void update_connector_ext_caps(struct amdgpu_dm_connector *aconnector)
caps->aux_support = true;
luminance_range = &conn_base->display_info.luminance_range;
- caps->aux_min_input_signal = luminance_range->min_luminance;
- caps->aux_max_input_signal = luminance_range->max_luminance;
+
+ if (luminance_range->max_luminance) {
+ caps->aux_min_input_signal = luminance_range->min_luminance;
+ caps->aux_max_input_signal = luminance_range->max_luminance;
+ } else {
+ caps->aux_min_input_signal = 0;
+ caps->aux_max_input_signal = 512;
+ }
}
void amdgpu_dm_update_connector_after_detect(
--
2.34.1
