From: Mario Limonciello Date: Fri, 25 Jul 2025 03:12:21 +0000 (-0500) Subject: drm/amd: Restore cached power limit during resume X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=ed4efe426a49729952b3dc05d20e33b94409bdd1;p=users%2Fjedix%2Flinux-maple.git drm/amd: Restore cached power limit during resume The power limit will be cached in smu->current_power_limit but if the ASIC goes into S3 this value won't be restored. Restore the value during SMU resume. Acked-by: Alex Deucher Link: https://lore.kernel.org/r/20250725031222.3015095-2-superm1@kernel.org Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher (cherry picked from commit 26a609e053a6fc494403e95403bc6a2470383bec) Cc: stable@vger.kernel.org --- diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c index 756afe78a6e5..310f51ff05b9 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c @@ -2226,6 +2226,12 @@ static int smu_resume(struct amdgpu_ip_block *ip_block) adev->pm.dpm_enabled = true; + if (smu->current_power_limit) { + ret = smu_set_power_limit(smu, smu->current_power_limit); + if (ret && ret != -EOPNOTSUPP) + return ret; + } + dev_info(adev->dev, "SMU is resumed successfully!\n"); return 0;