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drm/amd/pm: Add warning for unexpected PG requests

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v1: Ideally power gate/ungate requests shouldn't come when smu block is
uninitialized. Add a WARN message to check the origins if such a thing
ever happens.

v2: Use dev_WARN to log device info (Felix/Guchun).

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Kevin Yang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lijo Lazar 2021-11-25 19:45:42 +08:00 committed by Alex Deucher
parent 700de2c8aa
commit 85c1b9bd13
1 changed files with 5 additions and 1 deletions
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6
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
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@ -277,8 +277,12 @@ static int smu_dpm_set_power_gate(void *handle,
struct smu_context *smu = handle;
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled) {
dev_WARN(smu->adev->dev,
"SMU uninitialized but power %s requested for %u!\n",
gate ? "gate" : "ungate", block_type);
return -EOPNOTSUPP;
}
switch (block_type) {
/*