[PATCH v2] drm/amd/pm: disbale dcefclk device sysnode on GFX v9.4.3 chip

Yang Wang kevinyang.wang at amd.com
Wed Jul 5 05:46:18 UTC 2023


v1:
the dceflck sysnode is not aviable on GFX v9.4.3 chip.

v2:
simplify code logic using helper function: amdgpu_device_has_display_hardware().

Signed-off-by: Yang Wang <kevinyang.wang at amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng at amd.com>
---
 drivers/gpu/drm/amd/pm/amdgpu_pm.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
index 9ef88a0b1b57..f6724d633e45 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -2048,9 +2048,7 @@ static int default_attr_update(struct amdgpu_device *adev, struct amdgpu_device_
 		if (gc_ver < IP_VERSION(9, 0, 0))
 			*states = ATTR_STATE_UNSUPPORTED;
 	} else if (DEVICE_ATTR_IS(pp_dpm_dcefclk)) {
-		if (gc_ver < IP_VERSION(9, 0, 0) ||
-		    gc_ver == IP_VERSION(9, 4, 1) ||
-		    gc_ver == IP_VERSION(9, 4, 2))
+		if (!amdgpu_device_has_display_hardware(adev))
 			*states = ATTR_STATE_UNSUPPORTED;
 	} else if (DEVICE_ATTR_IS(pp_dpm_fclk)) {
 		if (mp1_ver < IP_VERSION(10, 0, 0))
-- 
2.34.1



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