drm/amd/pm: increase time out value when sending msg to SMU

CharlesSun1018 · alexdeucher · commit 055162645a40 · 2021-04-09T16:54:44.000-04:00
when do S3 stress, low rate that PowerUpVcn message will get response
more than 1s, so here increase the timeout to 2s

Signed-off-by: charles sun &lt;charles.sun@amd.com&gt;
Reviewed-by: Evan Quan &lt;evan.quan@amd.com&gt;
Acked-by: Alex Deucher &lt;Alexander.Deucher@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c b/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
@@ -79,7 +79,7 @@ static void smu_cmn_read_arg(struct smu_context *smu,
 int smu_cmn_wait_for_response(struct smu_context *smu)
 {
 	struct amdgpu_device *adev = smu->adev;
-	uint32_t cur_value, i, timeout = adev->usec_timeout * 10;
+	uint32_t cur_value, i, timeout = adev->usec_timeout * 20;
 
 	for (i = 0; i < timeout; i++) {
 		cur_value = RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90);

Original file line number	Diff line number	Diff line change
`@@ -79,7 +79,7 @@ static void smu_cmn_read_arg(struct smu_context *smu,`
`79`	`79`	`int smu_cmn_wait_for_response(struct smu_context *smu)`
`80`	`80`	`{`
`81`	`81`	`struct amdgpu_device *adev = smu->adev;`
`82`		`- uint32_t cur_value, i, timeout = adev->usec_timeout * 10;`
	`82`	`+ uint32_t cur_value, i, timeout = adev->usec_timeout * 20;`
`83`	`83`
`84`	`84`	`for (i = 0; i < timeout; i++) {`
`85`	`85`	`cur_value = RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90);`