Hi Matthias,

Just ping for this patchset.

Thanks.

On Fri, 2021-07-30 at 10:52 +0800, Yong Wu wrote:

MediaTek IOMMU block diagram always like below:

        M4U
         |
    smi-common
         |
  -------------
  |         |  ...
  |         |
larb1     larb2
  |         |
vdec       venc

All the consumer connect with smi-larb, then connect with smi-common.

When the consumer works, it should enable the smi-larb's power which
also
need enable the smi-common's power firstly.

Thus, Firstly, use the device link connect the consumer and the
smi-larbs. then add device link between the smi-larb and smi-common.

After adding the device_link, then "mediatek,larb" property can be
removed.
the iommu consumer don't need call the mtk_smi_larb_get/put to enable
the power and clock of smi-larb and smi-common.

Base on v5.14-rc1, and a jpeg[1] and mdp[2] patchset.

[1] 
https://lore.kernel.org/linux-mediatek/20210702102304.3346429-1-hsinyi@chromium.org/ (local)
[2] 
https://lore.kernel.org/linux-mediatek/20210709022324.1607884-1-eizan@chromium.org/ (local)

Change notes:
v7: 1) Fix a arm32 boot fail issue. reported from Frank.
    2) Add a return fail in the mtk drm. suggested by Dafna.

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