From: Guchun Chen <guchun.chen@amd.com>
Date: Wed, 7 Sep 2022 12:31:36 +0000 (+0800)
Subject: drm/amd/pm: disable BACO entry/exit completely on several sienna cichlid cards
X-Git-Tag: v6.6.17~6598^2~3^2~49
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7c6fb61a400bf3218c6504cb2d48858f98822c9d;p=platform%2Fkernel%2Flinux-rpi.git

drm/amd/pm: disable BACO entry/exit completely on several sienna cichlid cards

To avoid hardware intermittent failures.

Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
index 6db67f0..644ea15 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
@@ -368,6 +368,17 @@ static void sienna_cichlid_check_bxco_support(struct smu_context *smu)
 		smu_baco->platform_support =
 			(val & RCC_BIF_STRAP0__STRAP_PX_CAPABLE_MASK) ? true :
 									false;
+
+		/*
+		 * Disable BACO entry/exit completely on below SKUs to
+		 * avoid hardware intermittent failures.
+		 */
+		if (((adev->pdev->device == 0x73A1) &&
+		    (adev->pdev->revision == 0x00)) ||
+		    ((adev->pdev->device == 0x73BF) &&
+		    (adev->pdev->revision == 0xCF)))
+			smu_baco->platform_support = false;
+
 	}
 }