[PATCH v4 08/11] drm/amd/display: make blnd bypass mode clearer

[Melissa Wen <mwen@igalia.com>]

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 <harry.wentland@amd.com>
Signed-off-by: Melissa Wen <mwen@igalia.com>
---
 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 */
-- 
2.53.0