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msm/gpu/a6xx: Force of_dma_configure to setup DMA for GMU

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[ Upstream commit 32aa27e15c ]

The point of the 'force_dma' parameter for of_dma_configure
is to force the device to be set up even if DMA capability is
not described by the firmware which is exactly the use case
 we have for GMU - we need SMMU to get set up but we have no
other dma capabilities since memory is managed by the GPU
driver. Currently we pass false so of_dma_configure() fails
and subsequently GMU and GPU probe does as well.

Fixes: 4b565ca5a2 ("drm/msm: Add A6XX device support")
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Tested-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jordan Crouse 2018-09-14 09:03:46 -06:00 committed by Greg Kroah-Hartman
parent 674b223d7a
commit 3d0c72f99e
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/msm/adreno/a6xx_gmu.c
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@ -1140,7 +1140,7 @@ int a6xx_gmu_probe(struct a6xx_gpu *a6xx_gpu, struct device_node *node)
gmu->dev = &pdev->dev;
of_dma_configure(gmu->dev, node, false);
of_dma_configure(gmu->dev, node, true);
/* Fow now, don't do anything fancy until we get our feet under us */
gmu->idle_level = GMU_IDLE_STATE_ACTIVE;