1 files changed, 35 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/4877-drm-amdgpu-drop-mmRLC_PG_CNTL-clear-v2.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/4877-drm-amdgpu-drop-mmRLC_PG_CNTL-clear-v2.patch
new file mode 100644
index 00000000..fff4d5a6
--- /dev/null
+++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/4877-drm-amdgpu-drop-mmRLC_PG_CNTL-clear-v2.patch
@@ -0,0 +1,35 @@
+From 0608446c9ecb074f32eadaf07251b8501fb7edd5 Mon Sep 17 00:00:00 2001
+From: Evan Quan <evan.quan@amd.com>
+Date: Wed, 4 Jul 2018 17:06:38 +0800
+Subject: [PATCH 4877/5725] drm/amdgpu: drop mmRLC_PG_CNTL clear v2
+
+SMU owns this register so the driver should not set it
+to avoid breaking gfxoff.
+
+v2: update description
+
+Signed-off-by: Evan Quan <evan.quan@amd.com>
+Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
+Reviewed-by: Huang Rui <ray.huang at amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 3 ---
+ 1 file changed, 3 deletions(-)
+
+diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+index b322714..99d6005 100644
+--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
++++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+@@ -2309,9 +2309,6 @@ static int gfx_v9_0_rlc_resume(struct amdgpu_device *adev)
+ 	/* disable CG */
+ 	WREG32_SOC15(GC, 0, mmRLC_CGCG_CGLS_CTRL, 0);
+ 
+-	/* disable PG */
+-	WREG32_SOC15(GC, 0, mmRLC_PG_CNTL, 0);
+-
+ 	gfx_v9_0_rlc_reset(adev);
+ 
+ 	gfx_v9_0_init_pg(adev);
+-- 
+2.7.4
+