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@xxxxxxxxxxxx/ > [2] > https://lore.kernel.org/linux-mediatek/20210709022324.1607884-1-eizan@xxxxxxxxxxxx/ > > 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.
