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Commit 45286858 authored by Marek Szyprowski's avatar Marek Szyprowski Committed by Inki Dae
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drm/exynos: iommu: detach from default dma-mapping domain on init 



This patch adds code, which detach sub-device nodes from default iommu
domain if such has been configured. This lets Exynos DRM driver to properly
attach sub-devices to its own, common for all sub-devices domain.

Signed-off-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
Tested-by: default avatarJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: default avatarInki Dae <inki.dae@samsung.com>
parent fb88e214

drivers/gpu/drm/exynos/exynos_drm_iommu.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -100,6 +100,9 @@ int drm_iommu_attach_device(struct drm_device *drm_dev, 




	dma_set_max_seg_size(subdrv_dev, 0xffffffffu);

	dma_set_max_seg_size(subdrv_dev, 0xffffffffu);





	if (subdrv_dev->archdata.mapping)

		arm_iommu_detach_device(subdrv_dev);



	ret = arm_iommu_attach_device(subdrv_dev, dev->archdata.mapping);

	ret = arm_iommu_attach_device(subdrv_dev, dev->archdata.mapping);

	if (ret < 0) {

	if (ret < 0) {

		DRM_DEBUG_KMS("failed iommu attach.\n");

		DRM_DEBUG_KMS("failed iommu attach.\n");