Re: [PATCH v15 0/3] Add drm driver for Rockchip Socs

On Tue, Dec 2, 2014 at 1:31 AM, Heiko Stübner [off-list ref] wrote:

Hi Mark,

Am Dienstag, 2. Dezember 2014, 17:13:20 schrieb Mark Yao:

quoted

This a series of patches is a DRM Driver for Rockchip Socs, add support
for vop devices. Future patches will add additional encoders/connectors,
such as eDP, HDMI.

The basic "crtc" for rockchip is a "VOP" - Video Output Processor.
the vop devices found on Rockchip rk3288 Soc, rk3288 soc have two similar
Vop devices. Vop devices support iommu mapping, we use dma-mapping API with
ARM_DMA_USE_IOMMU.

[...]

quoted

Changes in v15:
- remove depends on ARM_DMA_USE_IOMMU & IOMMU_API which cause
  recursive dependency problem

I thought the recommended solution for this was to fix OMAP3 to not
select  ARM_DMA_USE_IOMMU and OMAP_IOMMU, not to drop the 'depends on'
in drm/rockchip?

quoted

- fix compile problems when build as a module.

maybe you could also already create a new pull request for this version [like
the last one based on the iommu branch], so that we save time and Dave can
pull it in easily for testing if he likes.


Heiko

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