drm/msm/dsi: Don't use iommu for command TX buffer for DSIv2

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We currently use iommu allocated DMA buffers for sending DSI commands.
DSIv2 doesn't have a port connected to the MDP iommu. Therefore, it
can't use iommu allocated buffers to fetch DSI commands.

Use a regular contiguous DMA buffer if we are DSIv2.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>

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This commit is contained in:

Archit Taneja 2015-10-13 12:20:47 +05:30 • committed by Rob Clark

parent cea65dbd6a

commit 4ff9d4cbc1

3 changed files with 79 additions and 41 deletions

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4

drivers/gpu/drm/msm/dsi/dsi.h

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110

drivers/gpu/drm/msm/dsi/dsi_host.c

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6

drivers/gpu/drm/msm/dsi/dsi_manager.c

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