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 the media branch [1] and a jpeg dtbinding patchset[2] that already got the necessary R-b.
[1] git://linuxtv.org/hverkuil/media_tree.git tags/br-v5.18d [2] https://lore.kernel.org/linux-mediatek/20211206130425.184420-1-hsinyi@chromi...
Change notes: v10: a) Rebase on the media tree. Respin the "media: mtk-vcodec:" patches. b) Add Joerg's Ack for iommu patches.
v9: https://lore.kernel.org/linux-mediatek/20211112105509.12010-1-yong.wu@mediat... 1) Add return -ENODEV when the dev is null. 2) Add more strict about the case that a iommu consume device use the ports in different larbs. Don't allow this case. 3) Remove two codec interface: mtk_vcodec_release_enc/dec_pm since it only has one line now.
v8: https://lore.kernel.org/linux-mediatek/20210929013719.25120-1-yong.wu@mediat... 1) Rebase on v5.15-rc1. 2) Don't rebase the below mdp patchset that may still need more discuss. https://lore.kernel.org/linux-mediatek/20210709022324.1607884-1-eizan@chromi... 3) Add Frank's Tested-by. Remove Dafna's Tested-by as he requested.
v7: https://lore.kernel.org/linux-mediatek/20210730025238.22456-1-yong.wu@mediat... 1) Fix a arm32 boot fail issue. reported from Frank. 2) Add a return fail in the mtk drm. suggested by Dafna.
v6: https://lore.kernel.org/linux-mediatek/20210714025626.5528-1-yong.wu@mediate... 1) rebase on v5.14-rc1. 2) Fix the issue commented in v5 from Dafna and Hsin-Yi. 3) Remove the patches about using pm_runtime_resume_and_get since they have already been merged by other patches.
v5: https://lore.kernel.org/linux-mediatek/20210410091128.31823-1-yong.wu@mediat... 1) Base v5.12-rc2. 2) Remove changing the mtk-iommu to module_platform_driver patch, It have already been a independent patch.
v4: https://lore.kernel.org/linux-mediatek/1590826218-23653-1-git-send-email-yon... base on v5.7-rc1. 1) Move drm PM patch before smi patchs. 2) Change builtin_platform_driver to module_platform_driver since we may need build as module. 3) Rebase many patchset as above.
v3: https://lore.kernel.org/linux-iommu/1567503456-24725-1-git-send-email-yong.w... 1) rebase on v5.3-rc1 and the latest mt8183 patchset. 2) Use device_is_bound to check whether the driver is ready from Matthias. 3) Add DL_FLAG_STATELESS flag when calling device_link_add and explain the reason in the commit message[3/14]. 4) Add a display patch[12/14] into this series. otherwise it may affect display HW fastlogo even though it don't happen in mt8183.
v2: https://lore.kernel.org/linux-iommu/1560171313-28299-1-git-send-email-yong.w... 1) rebase on v5.2-rc1. 2) Move adding device_link between the consumer and smi-larb into iommu_add_device from Robin. 3) add DL_FLAG_AUTOREMOVE_CONSUMER even though the smi is built-in from Evan. 4) Remove the shutdown callback in iommu.
v1: https://lore.kernel.org/linux-iommu/1546318276-18993-1-git-send-email-yong.w...
Yong Wu (12): dt-binding: mediatek: Get rid of mediatek,larb for multimedia HW iommu/mediatek-v1: Free the existed fwspec if the master dev already has iommu/mediatek: Return ENODEV if the device is NULL iommu/mediatek: Add probe_defer for smi-larb iommu/mediatek: Add device_link between the consumer and the larb devices media: mtk-jpeg: Get rid of mtk_smi_larb_get/put media: mtk-mdp: Get rid of mtk_smi_larb_get/put drm/mediatek: Get rid of mtk_smi_larb_get/put media: mtk-vcodec: Get rid of mtk_smi_larb_get/put memory: mtk-smi: Get rid of mtk_smi_larb_get/put arm: dts: mediatek: Get rid of mediatek,larb for MM nodes arm64: dts: mediatek: Get rid of mediatek,larb for MM nodes
Yongqiang Niu (1): drm/mediatek: Add pm runtime support for ovl and rdma
.../display/mediatek/mediatek,disp.txt | 9 ---- .../media/mediatek,vcodec-decoder.yaml | 7 --- .../media/mediatek,vcodec-encoder.yaml | 8 ---- .../bindings/media/mediatek-jpeg-decoder.yaml | 9 ---- .../bindings/media/mediatek-jpeg-encoder.yaml | 9 ---- .../bindings/media/mediatek-mdp.txt | 8 ---- arch/arm/boot/dts/mt2701.dtsi | 2 - arch/arm/boot/dts/mt7623n.dtsi | 5 --- arch/arm64/boot/dts/mediatek/mt8173.dtsi | 16 ------- arch/arm64/boot/dts/mediatek/mt8183.dtsi | 6 --- drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 8 +++- drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 9 +++- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 15 ++++--- drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 36 +-------------- drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 1 - drivers/gpu/drm/mediatek/mtk_drm_drv.c | 5 +-- drivers/iommu/mtk_iommu.c | 34 ++++++++++++++ drivers/iommu/mtk_iommu_v1.c | 42 ++++++++++++++++- .../media/platform/mtk-jpeg/mtk_jpeg_core.c | 45 +------------------ .../media/platform/mtk-jpeg/mtk_jpeg_core.h | 2 - drivers/media/platform/mtk-mdp/mtk_mdp_comp.c | 40 ----------------- drivers/media/platform/mtk-mdp/mtk_mdp_comp.h | 2 - drivers/media/platform/mtk-mdp/mtk_mdp_core.c | 1 - .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 2 - .../platform/mtk-vcodec/mtk_vcodec_dec_hw.c | 1 - .../platform/mtk-vcodec/mtk_vcodec_dec_pm.c | 41 +++-------------- .../platform/mtk-vcodec/mtk_vcodec_drv.h | 3 -- .../platform/mtk-vcodec/mtk_vcodec_enc.c | 1 - .../platform/mtk-vcodec/mtk_vcodec_enc_drv.c | 2 - .../platform/mtk-vcodec/mtk_vcodec_enc_pm.c | 45 +++---------------- drivers/memory/mtk-smi.c | 14 ------ include/soc/mediatek/smi.h | 20 --------- 32 files changed, 115 insertions(+), 333 deletions(-)