Re: [PATCH v10 00/13] Clean up "mediatek,larb"

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Il 17/01/22 08:04, Yong Wu ha scritto:
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@xxxxxxxxxxxx/

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@xxxxxxxxxxxx/
     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@xxxxxxxxxxxx/
     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@xxxxxxxxxxxx/
     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@xxxxxxxxxxxx/
     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@xxxxxxxxxxxx/
     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@xxxxxxxxxxxx/
     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-yong.wu@xxxxxxxxxxxx/
     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.wu@xxxxxxxxxxxx/
     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.wu@xxxxxxxxxxxx/
    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.wu@xxxxxxxxxxxx/

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(-)


Hello Hans, Matthias,
on my side, this series is totally ready for merge, hence, green light from here.

Can you please take it for 5.18?

Thank you,
Angelo



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