1 files changed, 34 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3664-drm-amd-powerplay-SMU_MSG_OverridePcieParameters-is-.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3664-drm-amd-powerplay-SMU_MSG_OverridePcieParameters-is-.patch
new file mode 100644
index 00000000..f0fd53a5
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3664-drm-amd-powerplay-SMU_MSG_OverridePcieParameters-is-.patch
@@ -0,0 +1,34 @@
+From 0ab580777db7d2f8062ea6c49ed08fa73f559d78 Mon Sep 17 00:00:00 2001
+From: Aaron Liu <aaron.liu@amd.com>
+Date: Fri, 30 Aug 2019 09:53:27 +0800
+Subject: [PATCH 3664/4256] drm/amd/powerplay: SMU_MSG_OverridePcieParameters
+ is unsupport for APU
+
+For apu, SMU_MSG_OverridePcieParameters is unsupport.
+So return directly in smu_override_pcie_parameters function.
+
+Signed-off-by: Aaron Liu <aaron.liu@amd.com>
+Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
+Reviewed-by: Evan Quan <evan.quan@amd.com>
+Acked-by: Huang Rui <ray.huang@amd.com>
+---
+ drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+index 590d0012bc22..a9cce9985d16 100644
+--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
++++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+@@ -970,6 +970,9 @@ static int smu_override_pcie_parameters(struct smu_context *smu)
+ 	uint32_t pcie_gen = 0, pcie_width = 0, smu_pcie_arg;
+ 	int ret;
+ 
++	if (adev->flags & AMD_IS_APU)
++		return 0;
++
+ 	if (adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN4)
+ 		pcie_gen = 3;
+ 	else if (adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3)
+-- 
+2.17.1
+