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drm/msm: Check return value of of_dma_configure()

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[ Upstream commit b34a7401ffaee45354e81b38a4d072794079cfd6 ]

Because the of_dma_configure() will returns '-EPROBE_DEFER' if the probe
procedure of the specific platform IOMMU driver is not finished yet. It
can also return other error code for various reasons.

Stop pretending that it will always suceess, quit if it fail.

Signed-off-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Fixes: 29ac8979cd ("drm/msm/a6xx: use msm_gem for GMU memory objects")
Fixes: 5a903a44a9 ("drm/msm/a6xx: Introduce GMU wrapper support")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/622782/
Link: https://lore.kernel.org/r/20241104090738.529848-1-sui.jingfeng@linux.dev
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sui Jingfeng
2024-11-04 17:07:38 +08:00
committed by Greg Kroah-Hartman
parent 13492b477b
commit 25599a16d7
1 changed files with 6 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+6 -2
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@@ -1603,7 +1603,9 @@ int a6xx_gmu_wrapper_init(struct a6xx_gpu *a6xx_gpu, struct device_node *node)
gmu->dev = &pdev->dev;
of_dma_configure(gmu->dev, node, true);
ret = of_dma_configure(gmu->dev, node, true);
if (ret)
return ret;
pm_runtime_enable(gmu->dev);
@@ -1668,7 +1670,9 @@ int a6xx_gmu_init(struct a6xx_gpu *a6xx_gpu, struct device_node *node)
gmu->dev = &pdev->dev;
of_dma_configure(gmu->dev, node, true);
ret = of_dma_configure(gmu->dev, node, true);
if (ret)
return ret;
/* Fow now, don't do anything fancy until we get our feet under us */
gmu->idle_level = GMU_IDLE_STATE_ACTIVE;