drm/amdgpu: Skip ASPM programming on aldebaran

Lijo Lazar · alexdeucher · commit 6ff53495ceee · 2021-11-24T14:06:53.000-05:00
There is no need for additional programming, keep the default settings.

Signed-off-by: Lijo Lazar &lt;lijo.lazar@amd.com&gt;
Reviewed-by: Hawking Zhang &lt;Hawking.Zhang@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
@@ -694,6 +694,9 @@ static void nbio_v7_4_program_aspm(struct amdgpu_device *adev)
 {
 	uint32_t def, data;
 
+	if (adev->ip_versions[NBIO_HWIP][0] == IP_VERSION(7, 4, 4))
+		return;
+
 	def = data = RREG32_PCIE(smnPCIE_LC_CNTL);
 	data &= ~PCIE_LC_CNTL__LC_L1_INACTIVITY_MASK;
 	data &= ~PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK;

Original file line number	Diff line number	Diff line change
`@@ -694,6 +694,9 @@ static void nbio_v7_4_program_aspm(struct amdgpu_device *adev)`
`694`	`694`	`{`
`695`	`695`	`uint32_t def, data;`
`696`	`696`
	`697`	`+ if (adev->ip_versions[NBIO_HWIP][0] == IP_VERSION(7, 4, 4))`
	`698`	`+ return;`
	`699`	`+`
`697`	`700`	`def = data = RREG32_PCIE(smnPCIE_LC_CNTL);`
`698`	`701`	`data &= ~PCIE_LC_CNTL__LC_L1_INACTIVITY_MASK;`
`699`	`702`	`data &= ~PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK;`