The patch below does not apply to the 4.9-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From 32859f7335d838ee373c40ee0b3c0c6ebc87a488 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michel=20D=C3=A4nzer?= <michel.daenzer@xxxxxxx>
Date: Tue, 6 Dec 2016 18:33:03 +0900
Subject: [PATCH] drm/amdgpu/dce6: Set MASTER_UPDATE_MODE to 0 in
resume_mc_access as well
MIME-Version: 1.0
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Looks like this was missed when dce_v6_0.c was added.
Fixes: e2cdf640cbb5 ("drm/amdgpu: add display controller implementation for si v10")
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Michel Dänzer <michel.daenzer@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c
index 18cb295c0f38..e564442b6393 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c
@@ -460,9 +460,8 @@ static void dce_v6_0_resume_mc_access(struct amdgpu_device *adev,
for (i = 0; i < adev->mode_info.num_crtc; i++) {
if (save->crtc_enabled[i]) {
tmp = RREG32(mmMASTER_UPDATE_MODE + crtc_offsets[i]);
- if ((tmp & 0x7) != 3) {
+ if ((tmp & 0x7) != 0) {
tmp &= ~0x7;
- tmp |= 0x3;
WREG32(mmMASTER_UPDATE_MODE + crtc_offsets[i], tmp);
}
tmp = RREG32(mmGRPH_UPDATE + crtc_offsets[i]);
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