From: Evan Quan <evan.quan@amd.com>
Date: Tue, 8 Nov 2022 07:52:20 +0000 (+0800)
Subject: drm/amd/pm: fix SMU13 runpm hang due to unintentional workaround
X-Git-Tag: v6.6.17~6163^2~1^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4b14841c9a820e484bc8c4c3f5a6fed1bc528cbc;p=platform%2Fkernel%2Flinux-rpi.git

drm/amd/pm: fix SMU13 runpm hang due to unintentional workaround

The workaround designed for some specific ASICs is wrongly applied
to SMU13 ASICs. That leads to some runpm hang.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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 4fe75dd..b880f4d 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -1156,22 +1156,21 @@ static int smu_smc_hw_setup(struct smu_context *smu)
 	uint64_t features_supported;
 	int ret = 0;
 
-	if (adev->in_suspend && smu_is_dpm_running(smu)) {
-		dev_info(adev->dev, "dpm has been enabled\n");
-		/* this is needed specifically */
-		switch (adev->ip_versions[MP1_HWIP][0]) {
-		case IP_VERSION(11, 0, 7):
-		case IP_VERSION(11, 0, 11):
-		case IP_VERSION(11, 5, 0):
-		case IP_VERSION(11, 0, 12):
+	switch (adev->ip_versions[MP1_HWIP][0]) {
+	case IP_VERSION(11, 0, 7):
+	case IP_VERSION(11, 0, 11):
+	case IP_VERSION(11, 5, 0):
+	case IP_VERSION(11, 0, 12):
+		if (adev->in_suspend && smu_is_dpm_running(smu)) {
+			dev_info(adev->dev, "dpm has been enabled\n");
 			ret = smu_system_features_control(smu, true);
 			if (ret)
 				dev_err(adev->dev, "Failed system features control!\n");
-			break;
-		default:
-			break;
+			return ret;
 		}
-		return ret;
+		break;
+	default:
+		break;
 	}
 
 	ret = smu_init_display_count(smu, 0);