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authorRob Clark <robdclark@chromium.org>2019-05-08 06:06:52 -0700
committerSean Paul <seanpaul@chromium.org>2019-05-08 16:00:54 -0400
commit15273ffd7efdf6e9f21c4e4beef6539229167343 (patch)
tree7804ecce403c084defa63849bc82add84a9b4ae8 /drivers
parent23e35c0eb81a23d40c079a7eb187fc321fa1deb7 (diff)
drm/msm/a6xx: No zap shader is not an error
Depending on platform firmware, a zap shader may not be required to take the GPU out of secure mode on boot, in which case we can just write RBBM_SECVID_TRUST_CNTL directly. Which we *mostly* handled, but missed clearing 'ret' resulting that hw_init() returned an error on these devices. Fixes: abccb9fe3267 ("drm/msm/a6xx: Add zap shader load") Acked-by: Jordan Crouse <jcrouse@codeaurora.org> Reviewed-by: Sean Paul <sean@poorly.run> Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190508130726.27557-1-robdclark@gmail.com
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/msm/adreno/a6xx_gpu.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index ec24508b9d68..e74dce474250 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -527,6 +527,7 @@ static int a6xx_hw_init(struct msm_gpu *gpu)
dev_warn_once(gpu->dev->dev,
"Zap shader not enabled - using SECVID_TRUST_CNTL instead\n");
gpu_write(gpu, REG_A6XX_RBBM_SECVID_TRUST_CNTL, 0x0);
+ ret = 0;
}
out: