On 2026-08-11 12:45, Melissa Wen wrote:
If userspace set blnd colorop to bypass, AMD driver just skips blnd
transfer function configuration. Currently, this is not an issue since
dc plane state is a reset/default state, but it's not fully correct and
doesn't mirror shaper tf helper. Make bypass mode setup clear by
initially set tf->type as BYPASS and let the helper change its type
according to userspace requests.
Acked-by: Harry Wentland <[email protected]>
Signed-off-by: Melissa Wen <[email protected]>
Reviewed-by: Harry Wentland <[email protected]>
Harry
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
index ca9e43e81edf..ad67106c6435 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
@@ -1837,6 +1837,7 @@ __set_dm_plane_colorop_blend(struct drm_plane_state
*plane_state,
uint32_t blend_size = 0;
int i = 0;
+ tf->type = TF_TYPE_BYPASS;
dc_plane_state->cm.flags.bits.blend_enable = 0;
/* 1D Curve - BLND TF: find state */
