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* [PATCH] drm/amdgpu: fix set scaling mode Full/Full aspect/Center not works on vga and dvi connectors
@ 2021-11-11  3:32 hongao
  2021-11-12 22:51 ` Alex Deucher
  0 siblings, 1 reply; 2+ messages in thread
From: hongao @ 2021-11-11  3:32 UTC (permalink / raw)
  To: alexander.deucher, christian.koenig, Xinhui.Pan, airlied, daniel
  Cc: amd-gfx, dri-devel, linux-kernel, hongao

amdgpu_connector_vga_get_modes missed function amdgpu_get_native_mode
which assign amdgpu_encoder->native_mode with *preferred_mode result in
amdgpu_encoder->native_mode.clock always be 0. That will cause
amdgpu_connector_set_property returned early on:
if ((rmx_type != DRM_MODE_SCALE_NONE) &&
	(amdgpu_encoder->native_mode.clock == 0))
when we try to set scaling mode Full/Full aspect/Center.
Add the missing function to amdgpu_connector_vga_get_mode can fix this.
It also works on dvi connectors because
amdgpu_connector_dvi_helper_funcs.get_mode use the same method.

Signed-off-by: hongao <hongao@uniontech.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
index b9c11c2b2885..0de66f59adb8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
@@ -827,6 +827,7 @@ static int amdgpu_connector_vga_get_modes(struct drm_connector *connector)
 
 	amdgpu_connector_get_edid(connector);
 	ret = amdgpu_connector_ddc_get_modes(connector);
+	amdgpu_get_native_mode(connector);
 
 	return ret;
 }
-- 
2.20.1




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2021-11-11  3:32 [PATCH] drm/amdgpu: fix set scaling mode Full/Full aspect/Center not works on vga and dvi connectors hongao
2021-11-12 22:51 ` Alex Deucher

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