[PATCH 5.13 376/380] drm/amd/display: setup system context for APUs

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From: Aaron Liu <aaron.liu@xxxxxxx>

commit 3ca001aff0878546494d7f403334c8d987924977 upstream.

Scatter/gather is APU feature starting from carrizo.
adev->apu_flags is not used for all APUs.
adev->flags & AMD_IS_APU can be used for all APUs.

Signed-off-by: Aaron Liu <aaron.liu@xxxxxxx>
Reviewed-by: Huang Rui <ray.huang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1176,7 +1176,7 @@ static int amdgpu_dm_init(struct amdgpu_
 	dc_hardware_init(adev->dm.dc);
 
 #if defined(CONFIG_DRM_AMD_DC_DCN)
-	if (adev->apu_flags) {
+	if ((adev->flags & AMD_IS_APU) && (adev->asic_type >= CHIP_CARRIZO)) {
 		struct dc_phy_addr_space_config pa_config;
 
 		mmhub_read_system_context(adev, &pa_config);





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