Patch "drm/amdgpu: disable runtime pm on several sienna cichlid cards(v2)" has been added to the 5.15-stable tree

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This is a note to let you know that I've just added the patch titled

    drm/amdgpu: disable runtime pm on several sienna cichlid cards(v2)

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-amdgpu-disable-runtime-pm-on-several-sienna-cich.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit c825716dde20494ca5f44c4c81158973736999f4
Author: Guchun Chen <guchun.chen@xxxxxxx>
Date:   Wed Apr 27 15:51:02 2022 +0800

    drm/amdgpu: disable runtime pm on several sienna cichlid cards(v2)
    
    [ Upstream commit d1acd68b2b8924c804e1e3cc1bc5fa4d6b76176c ]
    
    Disable runtime power management on several sienna cichlid
    cards, otherwise SMU will possibly fail to be resumed from
    runtime suspend. Will drop this after a clean solution between
    kernel driver and SMU FW is available.
    
    amdgpu 0000:63:00.0: amdgpu: GECC is enabled
    amdgpu 0000:63:00.0: amdgpu: SECUREDISPLAY: securedisplay ta ucode is not available
    amdgpu 0000:63:00.0: amdgpu: SMU is resuming...
    amdgpu 0000:63:00.0: amdgpu: SMU: I'm not done with your command: SMN_C2PMSG_66:0x0000000E SMN_C2PMSG_82:0x00000080
    amdgpu 0000:63:00.0: amdgpu: Failed to SetDriverDramAddr!
    amdgpu 0000:63:00.0: amdgpu: Failed to setup smc hw!
    [drm:amdgpu_device_ip_resume_phase2 [amdgpu]] *ERROR* resume of IP block <smu> failed -62
    amdgpu 0000:63:00.0: amdgpu: amdgpu_device_ip_resume failed (-62)
    
    v2: seperate to a function.
    
    Signed-off-by: Guchun Chen <guchun.chen@xxxxxxx>
    Reviewed-by: Evan Quan <evan.quan@xxxxxxx>
    Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
    Stable-dep-of: 1923bc5a56da ("drm/amd: Delay removal of the firmware framebuffer")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 6744427577b3..43e30b9a2e02 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -43,6 +43,17 @@
 #include "amdgpu_display.h"
 #include "amdgpu_ras.h"
 
+static void amdgpu_runtime_pm_quirk(struct amdgpu_device *adev)
+{
+	/*
+	 * Add below quirk on several sienna_cichlid cards to disable
+	 * runtime pm to fix EMI failures.
+	 */
+	if (((adev->pdev->device == 0x73A1) && (adev->pdev->revision == 0x00)) ||
+	    ((adev->pdev->device == 0x73BF) && (adev->pdev->revision == 0xCF)))
+		adev->runpm = false;
+}
+
 void amdgpu_unregister_gpu_instance(struct amdgpu_device *adev)
 {
 	struct amdgpu_gpu_instance *gpu_instance;
@@ -201,6 +212,9 @@ int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags)
 		 */
 		if (adev->is_fw_fb)
 			adev->runpm = false;
+
+		amdgpu_runtime_pm_quirk(adev);
+
 		if (adev->runpm)
 			dev_info(adev->dev, "Using BACO for runtime pm\n");
 	}



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