[PATCH v4 00/17] Clean up "mediatek,larb" after adding device_link

[Yong Wu]

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.

MediaTek IOMMU don't have its power-domain. 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.

This patchset depends on v5.7-rc1 and several patchset. Mainly venc and MDP
adjust their flow, then this patchset can work successfully.

a) IOMMU depend on [1][2].
b) MDP depend on [3][4][5].
c) VENC depend on [6].

[1] iommu: Move iommu_group setup to IOMMU core code
   https://lore.kernel.org/linux-iommu/20200429133712.31431-1-joro@xxxxxxxxxx/
[2] iommu/mediatek-v1: Fix a build warning for a unused variable 'data'
   https://lore.kernel.org/linux-iommu/1589875064-662-1-git-send-email-yong.wu@xxxxxxxxxxxx/
[3] arm64: dts: mt8173: fix mdp aliases property name
   https://lore.kernel.org/linux-mediatek/20200414030815.192104-1-hsinyi@xxxxxxxxxxxx/
[4] MTK MDP driver cleanups to prep for futher work
    https://lore.kernel.org/linux-mediatek/20200507102345.81849-1-eizan@xxxxxxxxxxxx/
[5] Refactor MDP driver and add dummy component driver
    https://lore.kernel.org/linux-mediatek/20200506084039.249977-1-eizan@xxxxxxxxxxxx/
[6] media: mtk-vcodec: venc: support for MT8183
    https://lore.kernel.org/linux-mediatek/20200520082723.96136-1-acourbot@xxxxxxxxxxxx/

[1][2][3] have already been in lastest linux-next.

Change notes:

v4: 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: http://lists.infradead.org/pipermail/linux-mediatek/2019-June/020440.html
   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://lists.linuxfoundation.org/pipermail/iommu/2019-January/032387.html

Irui Wang (1):
  arm64: dts: mt8173: Separate mtk-vcodec-enc node

Maoguang Meng (2):
  media: dt-binding: mtk-vcodec: Separating mtk-vcodec encode node.
  media: mtk-vcodec: separate mtk-vcodec-enc node.

Yong Wu (13):
  dt-binding: mediatek: Get rid of mediatek,larb for multimedia HW
  iommu/mediatek: Add probe_defer for smi-larb
  iommu/mediatek: Add device_link between the consumer and the larb
    devices
  memory: mtk-smi: Add device-link between smi-larb and smi-common
  media: mtk-jpeg: Get rid of mtk_smi_larb_get/put
  media: mtk-mdp: Get rid of mtk_smi_larb_get/put
  media: mtk-vcodec: Get rid of mtk_smi_larb_get/put
  drm/mediatek: Get rid of mtk_smi_larb_get/put
  memory: mtk-smi: Get rid of mtk_smi_larb_get/put
  iommu/mediatek: Use module_platform_driver
  memory: mtk-smi: Use device_is_bound to check if smi-common is ready
  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

 .../bindings/display/mediatek/mediatek,disp.txt    |   9 --
 .../bindings/media/mediatek-jpeg-decoder.txt       |   4 -
 .../devicetree/bindings/media/mediatek-mdp.txt     |   8 --
 .../devicetree/bindings/media/mediatek-vcodec.txt  |  58 +++++-----
 arch/arm/boot/dts/mt2701.dtsi                      |   1 -
 arch/arm/boot/dts/mt7623.dtsi                      |   1 -
 arch/arm64/boot/dts/mediatek/mt8173.dtsi           |  72 +++++-------
 drivers/gpu/drm/mediatek/mtk_disp_ovl.c            |   9 +-
 drivers/gpu/drm/mediatek/mtk_disp_rdma.c           |   9 +-
 drivers/gpu/drm/mediatek/mtk_drm_crtc.c            |  19 +--
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c        |  21 +---
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h        |   2 +-
 drivers/iommu/mtk_iommu.c                          |  44 ++++---
 drivers/iommu/mtk_iommu_v1.c                       |  39 +++++--
 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c    |  22 ----
 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h    |   2 -
 drivers/media/platform/mtk-mdp/mtk_mdp_comp.c      |  44 +------
 drivers/media/platform/mtk-mdp/mtk_mdp_comp.h      |   2 -
 drivers/media/platform/mtk-mdp/mtk_mdp_core.c      |   1 -
 .../media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c  |  19 ---
 drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h |  13 +--
 drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c |  24 +++-
 .../media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c | 127 +++++++++------------
 .../media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c  |  56 ---------
 .../media/platform/mtk-vcodec/mtk_vcodec_enc_pm.h  |   1 -
 .../media/platform/mtk-vcodec/venc/venc_vp8_if.c   |   4 +-
 drivers/memory/mtk-smi.c                           |  41 +++----
 include/soc/mediatek/smi.h                         |  20 ----
 28 files changed, 246 insertions(+), 426 deletions(-)

-- 
1.9.1