Hey Marek, Inki, On Wed, 2014-11-19 at 12:15 +0100, Marek Szyprowski wrote: > Hello Everyone, > > This is another attempt to finally make Exynos SYSMMU driver fully > integrated with DMA-mapping subsystem. The main change from previous > version is a rebase onto latest "automatic DMA configuration for IOMMU > masters" patches from Will Deacon. Do you happen to know if anyone is working on iommu/dma-mapping patches for Exynos 5 based on this patchset? For some background to that question, We (re-)discovered yesterday that the out-of-tree exynos-reference kernel iommu patches are required to get HDMI out working on exynos 5 boards. The current situation in mainline is rather broken, HDMI output without CONFIG_DRM_EXYNOS_IOMMU results in just displaying stripes[0]. While turning on CONFIG_DRM_EXYNOS_IOMMU causes a kernel oops at boot.... 0: http://people.collabora.com/~sjoerd/14120001.jpg -- Sjoerd Simons <sjoerd.simons@xxxxxxxxxxxxxxx> Collabora Ltd.
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