[PATCH v26 0/7] Add MediaTek SoC DRM (vdosys1) support for mt8195

[Nancy.Lin]

The hardware path of vdosys1 with DPTx output need to go through by several modules, such as, OVL_ADAPTOR and MERGE.

Add DRM and these modules support by the patches below:

Changes in v26:
- rebase to next-20220819
- resend for patch corrupted in v25

Changes in v25:
- rebase to next-20220803

Changes in v24:
- fix ovl_adaptor binding issue (mtk_disp_ovl_adaptor.c)
  - Since ovl_adaptor is an aggregated component, it should be bounded after
    all its child components are bounded.
- rebase to next-20220708

Changes in v23:
- separate[7] mmsys/mutex and drm patches into two series

Changes in v22:
- rebase to next-20220525
- rebase to vdosys0 series v22
- separate dts to a new patch

Changes in v21:
- fix reviewer comment
  - fix rdma and ethdr binding doc and dts

Changes in v20:
- fix reviewer comment
  - update mmsys update bit api name
  - add mtk_mmsys_update_bits error message if lose gce property
  - list all mt8195 vdosys1 reset bits

Changes in v19:
- fix reviewer comment
  - separate mt8195 mmsys component to a new patch
  - separate mt8195 vdo0 and vdo1 routing table
  - separate mmsys_write_reg api to a new patch and simplify write reg code
  - separate mmsys 64 bit reset to a new patch
  - separate mtk-mutex dp_intf1 component to a new patch

Changes in v18:
- fix reviewer comment
  - fix rdma binding doc
  - fix ethdr binding doc
  - refine mmsys config cmdq support
  - refine merge reset control flow, get reset control in probe function
  - add ethdr reset control error handling and remove dbg log
- rebase to vdosys0 series v20 (ref [5])

Changes in v17:
- fix reviewer comment in v16
  - separate ovl adaptor comp in mtk-mmsys and mtk-mutex
  - separate mmsys config API
  - move mdp_rdma binding yaml
- fix ovl adaptor pm runtime get sync timing issue
- rebase to vdosys0 series v19 (ref [5])
- rebase to [7] for modify vblank register change

Changes in v16:
- fix reviewer comment in v 15
  - fix mtk_drm_ddp_comp.c alignment
  - fix vdosys0 mmsys num before adding vdosys1 patch

Changes in v15:
- fix ethdr uppercase hex number in dts

Changes in v14:
- remove MTK_MMSYS 64 bit dependency
- add ethdr.yaml back and fix dt_schema check fail

Resend v13
- add related maintainer in maillist

Changes in v13:
- fix reviewer comment in v12
  - fix rdma dt-binding format
  - fix dts node naming
- fix 32 bit build error
  - modify 64bit dependency for mtk-mmsys
- rebase to vdosys0 series v16. (ref [5])

Changes in v12:
- fix reviewer comment in v11
  - modify mbox index
  - refine dma dev for ovl_adaptor sub driver

Changes in v11:
- remove ethdr vblank spin lock
- refine ovl_adaptor print message

Changes in v10:
- refine ethdr reset control using devm_reset_control_array_get_optional_exclusive
- fix ovl_adaptor mtk_ovl_adaptor_clk_enable error handle issue

Changes in v9:
- rebase on kernel-5.16-rc1
- rebase on vdosys0 series v13. (ref [5])
- fix ovl_adaptor sub driver is brought up unintentionally
- fix clang build test fail- duplicate ethdr/mdp_rdma init_module/cleanup_module symbol issue 

Changes in v8:
- separate merge async reset to new patch.
- separate drm ovl_adaptor sub driver to new patch.
- fix reviewer comment in v7.

Changes in v7:
- rebase on vdosys0 series v12 (ref[5])
- add dma description in ethdr binding document.
- refine vdosys1 bit definition of mmsys routing table.
- separate merge modification into 3 pathces.
- separate mutex modification into 2 patches.
- add plane color coding for mdp_rdma csc.
- move mdp_rdma pm control to ovl_adaptor.
- fix reviewer comment in v6.

Changes in v6:
- rebase on kernel-5.15-rc1.
- change mbox label to gce0 for dts node of vdosys1.
- modify mmsys reset num for mt8195.
- rebase on vdosys0 series v10. (ref [5])
- use drm to bring up ovl_adaptor driver.
- move drm iommu/mutex check from kms init to drm bind.
- modify rdma binding doc location. (Documentation/devicetree/bindings/arm/)
- modify for reviewer's comment in v5.

Changes in v5:
- add mmsys reset controller reference.

Changes in v4:
- use merge common driver for merge1~4.
- refine ovl_adaptor rdma driver.
- use ovl_adaptor ddp_comp function instead of ethdr.
- modify for reviewer's comment in v3.

Changes in v3:
- modify for reviewer's comment in v2.
- add vdosys1 2 pixels align limit.
- add mixer odd offset support.

Changes in v2:
- Merge PSEUDO_OVL and ETHDR into one DRM component.
- Add mmsys config API for vdosys1 hardware setting.
- Add mmsys reset control using linux reset framework.

Signed-off-by: Nancy.Lin <nancy.lin at mediatek.com>

This series are based on the following patch:
[1] arm64: dts: Add mediatek SoC mt8195 and evaluation board
    20220112114724.1953-4-tinghan.shen at mediatek.com
[2] arm64: dts: mt8195: add IOMMU and smi nodes
    20210615173233.26682-15-tinghan.shen at mediatek.com
[3] [v2] arm64: dts: mt8195: add display node for vdosys0
    20220225021535.2655-1-jason-jh.lin at mediatek.com
[4] dt-bindings: mediatek: mt8195: Add binding for MM IOMMU
    20220407075726.17771-2-yong.wu at mediatek.com
[5] Add MediaTek SoC DRM (vdosys1) support for mt8195
    20220526110233.20080-1-nancy.lin at mediatek.com

Nancy.Lin (7):
  dt-bindings: mediatek: add ethdr definition for mt8195
  drm/mediatek: add ETHDR support for MT8195
  drm/mediatek: add ovl_adaptor support for MT8195
  drm/mediatek: add dma dev get function
  drm/mediatek: modify mediatek-drm for mt8195 multi mmsys support
  drm/mediatek: add drm ovl_adaptor sub driver for MT8195
  drm/mediatek: add mediatek-drm of vdosys1 support for MT8195

 .../display/mediatek/mediatek,ethdr.yaml      | 188 +++++++
 drivers/gpu/drm/mediatek/Makefile             |   2 +
 drivers/gpu/drm/mediatek/mtk_disp_drv.h       |  26 +
 .../gpu/drm/mediatek/mtk_disp_ovl_adaptor.c   | 528 ++++++++++++++++++
 drivers/gpu/drm/mediatek/mtk_drm_crtc.c       |  96 ++--
 drivers/gpu/drm/mediatek/mtk_drm_crtc.h       |   6 +-
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c   | 129 +++--
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h   |  58 +-
 drivers/gpu/drm/mediatek/mtk_drm_drv.c        | 359 ++++++++----
 drivers/gpu/drm/mediatek/mtk_drm_drv.h        |  24 +-
 drivers/gpu/drm/mediatek/mtk_ethdr.c          | 370 ++++++++++++
 drivers/gpu/drm/mediatek/mtk_ethdr.h          |  26 +
 12 files changed, 1615 insertions(+), 197 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,ethdr.yaml
 create mode 100644 drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
 create mode 100644 drivers/gpu/drm/mediatek/mtk_ethdr.c
 create mode 100644 drivers/gpu/drm/mediatek/mtk_ethdr.h

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2.18.0