[Public]
Reviewed-by: Guchun Chen <guchun.chen@xxxxxxx>
Regards,
Guchun
-----Original Message-----
From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Alex Deucher
Sent: Tuesday, December 28, 2021 1:12 AM
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Tareque Md . Hanif <tarequemd.hanif@xxxxxxxxx>
Subject: [PATCH] drm/amdgpu: no DC support for headless chips
Chips with no display hardware should return false for DC support.
v2: drop Arcturus and Aldebaran
Fixes: f7f12b25823c0d ("drm/amdgpu: default to true in amdgpu_device_asic_has_dc_support")
Reported-by: Tareque Md.Hanif <tarequemd.hanif@xxxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 9dc86c5a1cad..694c3726e0f4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3166,6 +3166,12 @@ static void amdgpu_device_detect_sriov_bios(struct amdgpu_device *adev) bool amdgpu_device_asic_has_dc_support(enum amd_asic_type asic_type) {
switch (asic_type) {
+#ifdef CONFIG_DRM_AMDGPU_SI
+ case CHIP_HAINAN:
+#endif
+ case CHIP_TOPAZ:
+ /* chips with no display hardware */
+ return false;
#if defined(CONFIG_DRM_AMD_DC)
case CHIP_TAHITI:
case CHIP_PITCAIRN:
--
2.33.1
