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Commit 32aa27e1 authored by Jordan Crouse's avatar Jordan Crouse Committed by Rob Clark
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msm/gpu/a6xx: Force of_dma_configure to setup DMA for GMU 



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: 4b565ca5 ("drm/msm: Add A6XX device support")
Signed-off-by: default avatarJordan Crouse <jcrouse@codeaurora.org>
Tested-by: default avatarSibi Sankar <sibis@codeaurora.org>
Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
parent fc6510ac

drivers/gpu/drm/msm/adreno/a6xx_gmu.c

+1 −1
Original line number Diff line number Diff line
@@ -1159,7 +1159,7 @@ 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;