[PATCH 4/5] drm/amdgpu: check scratch registers to see if we need post

[Alex Deucher]

Rather than checking the CONGIG_MEMSIZE register as that may
not be reliable on some APUs.

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 63f4bed..9d08f53 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -716,20 +716,12 @@ void amdgpu_gtt_location(struct amdgpu_device *adev, struct amdgpu_mc *mc)
  */
 bool amdgpu_need_post(struct amdgpu_device *adev)
 {
-	uint32_t reg;
-
 	if (adev->has_hw_reset) {
 		adev->has_hw_reset = false;
 		return true;
 	}
-	/* then check MEM_SIZE, in case the crtcs are off */
-	reg = amdgpu_asic_get_config_memsize(adev);
-
-	if ((reg != 0) && (reg != 0xffffffff))
-		return false;
-
-	return true;
 
+	return amdgpu_atombios_scratch_need_asic_init(adev);
 }
 
 static bool amdgpu_vpost_needed(struct amdgpu_device *adev)
-- 
2.5.5