Re: [PATCH] drm/amd/display: Fix set scaling doesn's work

From: Rodrigo Siqueira Jordao
Date: Thu Jan 12 2023 - 11:14:01 EST




On 1/11/23 10:19, Harry Wentland wrote:
On 1/10/23 10:58, Rodrigo Siqueira Jordao wrote:


On 11/22/22 06:20, hongao wrote:
[Why]
Setting scaling does not correctly update CRTC state. As a result
dc stream state's src (composition area) && dest (addressable area)
was not calculated as expected. This causes set scaling doesn's work.

[How]
Correctly update CRTC state when setting scaling property.

Signed-off-by: hongao <hongao@xxxxxxxxxxxxx>

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 3e1ecca72430..a88a6f758748 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -9386,8 +9386,8 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
              goto fail;
          }
  -        if (dm_old_con_state->abm_level !=
-            dm_new_con_state->abm_level)
+        if (dm_old_con_state->abm_level != dm_new_con_state->abm_level ||
+            dm_old_con_state->scaling != dm_new_con_state->scaling)
              new_crtc_state->connectors_changed = true;
      }

Hi,

This change lgtm, and I also run it in our CI, and from IGT perspective, we are good.

Harry, do you have any comment about this change?


LGTM

Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>

Harry

Thanks
Siqueira


Thanks, patch applied to amd-staging-drm-next.