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Message-ID: <01020191db57a3d1-2c076978-c7c0-4685-9621-10ecdc3c5e99-000000@eu-west-1.amazonses.com> Date: Tue, 10 Sep 2024 09:50:39 +0000 From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com> To: Chen-Yu Tsai <wenst@...omium.org> Cc: chunkuang.hu@...nel.org, robh@...nel.org, krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org, p.zabel@...gutronix.de, airlied@...il.com, daniel@...ll.ch, maarten.lankhorst@...ux.intel.com, mripard@...nel.org, tzimmermann@...e.de, matthias.bgg@...il.com, shawn.sung@...iatek.com, yu-chang.lee@...iatek.com, ck.hu@...iatek.com, jitao.shi@...iatek.com, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org, linux-mediatek@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org, kernel@...labora.com, sui.jingfeng@...ux.dev, michael@...le.cc, sjoerd@...labora.com Subject: Re: [PATCH v9 0/3] drm/mediatek: Add support for OF graphs Il 10/09/24 11:39, Chen-Yu Tsai ha scritto: > On Tue, Sep 10, 2024 at 5:01 PM AngeloGioacchino Del Regno > <angelogioacchino.delregno@...labora.com> wrote: >> >> Changes in v9: >> - Rebased on next-20240910 >> - Removed redundant assignment and changed a print to dev_err() >> - Dropped if branch to switch conversion as requested; this will >> be sent as a separate commit out of this series. >> >> Changes in v8: >> - Rebased on next-20240617 >> - Changed to allow probing a VDO with no available display outputs >> >> Changes in v7: >> - Fix typo in patch 3/3 >> >> Changes in v6: >> - Added EPROBE_DEFER check to fix dsi/dpi false positive DT fallback case >> - Dropped refcount of ep_out in mtk_drm_of_get_ddp_ep_cid() >> - Fixed double refcount drop during path building >> - Removed failure upon finding a DT-disabled path as requested >> - Tested again on MT8195, MT8395 boards >> >> Changes in v5: >> - Fixed commit [2/3], changed allOf -> anyOf to get the >> intended allowance in the binding >> >> Changes in v4: >> - Fixed a typo that caused pure OF graphs pipelines multiple >> concurrent outputs to not get correctly parsed (port->id); >> - Added OVL_ADAPTOR support for OF graph specified pipelines; >> - Now tested with fully OF Graph specified pipelines on MT8195 >> Chromebooks and MT8395 boards; >> - Rebased on next-20240516 >> >> Changes in v3: >> - Rebased on next-20240502 because of renames in mediatek-drm >> >> Changes in v2: >> - Fixed wrong `required` block indentation in commit [2/3] >> >> >> The display IPs in MediaTek SoCs are *VERY* flexible and those support >> being interconnected with different instances of DDP IPs (for example, >> merge0 or merge1) and/or with different DDP IPs (for example, rdma can >> be connected with either color, dpi, dsi, merge, etc), forming a full >> Display Data Path that ends with an actual display. >> >> This series was born because of an issue that I've found while enabling >> support for MT8195/MT8395 boards with DSI output as main display: the >> current mtk_drm_route variations would not work as currently, the driver >> hardcodes a display path for Chromebooks, which have a DisplayPort panel >> with DSC support, instead of a DSI panel without DSC support. >> >> There are other reasons for which I wrote this series, and I find that >> hardcoding those paths - when a HW path is clearly board-specific - is >> highly suboptimal. Also, let's not forget about keeping this driver from >> becoming a huge list of paths for each combination of SoC->board->disp >> and... this and that. >> >> For more information, please look at the commit description for each of >> the commits included in this series. >> >> This series is essential to enable support for the MT8195/MT8395 EVK, >> Kontron i1200, Radxa NIO-12L and, mainly, for non-Chromebook boards >> and Chromebooks to co-exist without conflicts. >> >> Besides, this is also a valid option for MT8188 Chromebooks which might >> have different DSI-or-eDP displays depending on the model (as far as I >> can see from the mtk_drm_route attempt for this SoC that is already >> present in this driver). >> >> This series was tested on MT8195 Cherry Tomato and on MT8395 Radxa >> NIO-12L with both hardcoded paths, OF graph support and partially >> hardcoded paths, and pure OF graph support including pipelines that >> require OVL_ADAPTOR support. >> >> AngeloGioacchino Del Regno (3): >> dt-bindings: display: mediatek: Add OF graph support for board path >> dt-bindings: arm: mediatek: mmsys: Add OF graph support for board path >> drm/mediatek: Implement OF graphs support for display paths >> >> .../bindings/arm/mediatek/mediatek,mmsys.yaml | 28 ++ >> .../arm/mediatek/mediatek,mmsys.yaml.orig | 140 ++++++++++ >> .../display/mediatek/mediatek,aal.yaml | 40 +++ >> .../display/mediatek/mediatek,aal.yaml.orig | 93 +++++++ >> .../display/mediatek/mediatek,ccorr.yaml | 21 ++ >> .../display/mediatek/mediatek,ccorr.yaml.orig | 88 ++++++ >> .../display/mediatek/mediatek,color.yaml | 22 ++ >> .../display/mediatek/mediatek,color.yaml.orig | 96 +++++++ >> .../display/mediatek/mediatek,dither.yaml | 22 ++ >> .../mediatek/mediatek,dither.yaml.orig | 87 ++++++ >> .../display/mediatek/mediatek,dpi.yaml | 25 +- >> .../display/mediatek/mediatek,dpi.yaml.orig | 122 +++++++++ >> .../display/mediatek/mediatek,dsc.yaml | 24 ++ >> .../display/mediatek/mediatek,dsi.yaml | 27 +- >> .../display/mediatek/mediatek,dsi.yaml.orig | 126 +++++++++ >> .../display/mediatek/mediatek,ethdr.yaml | 22 ++ >> .../display/mediatek/mediatek,gamma.yaml | 19 ++ >> .../display/mediatek/mediatek,gamma.yaml.orig | 96 +++++++ >> .../display/mediatek/mediatek,merge.yaml | 23 ++ >> .../display/mediatek/mediatek,merge.yaml.orig | 110 ++++++++ >> .../display/mediatek/mediatek,od.yaml | 22 ++ >> .../display/mediatek/mediatek,ovl-2l.yaml | 22 ++ >> .../mediatek/mediatek,ovl-2l.yaml.orig | 78 ++++++ >> .../display/mediatek/mediatek,ovl.yaml | 22 ++ >> .../display/mediatek/mediatek,ovl.yaml.orig | 109 ++++++++ >> .../display/mediatek/mediatek,postmask.yaml | 21 ++ >> .../display/mediatek/mediatek,rdma.yaml | 22 ++ >> .../display/mediatek/mediatek,rdma.yaml.orig | 122 +++++++++ >> .../display/mediatek/mediatek,ufoe.yaml | 21 ++ >> .../display/mediatek/mediatek,wdma.yaml.orig | 76 ++++++ >> .../bindings/gpu/arm,mali-bifrost.yaml.orig | 250 +++++++++++++++++ >> .../bindings/leds/leds-mt6323.txt.orig | 60 +++++ >> .../bindings/ufs/mediatek,ufs.yaml.orig | 71 +++++ >> drivers/gpu/drm/mediatek/mtk_disp_drv.h | 1 + >> .../gpu/drm/mediatek/mtk_disp_ovl_adaptor.c | 40 ++- >> drivers/gpu/drm/mediatek/mtk_dpi.c | 21 +- >> drivers/gpu/drm/mediatek/mtk_drm_drv.c | 253 +++++++++++++++++- >> drivers/gpu/drm/mediatek/mtk_drm_drv.h | 2 +- >> drivers/gpu/drm/mediatek/mtk_dsi.c | 14 +- >> 39 files changed, 2433 insertions(+), 25 deletions(-) >> create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml.orig >> create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,aal.yaml.orig >> create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,ccorr.yaml.orig >> create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,color.yaml.orig >> create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,dither.yaml.orig >> create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml.orig >> create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.yaml.orig >> create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,gamma.yaml.orig >> create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml.orig >> create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,ovl-2l.yaml.orig >> create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,ovl.yaml.orig >> create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,rdma.yaml.orig >> create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml.orig >> create mode 100644 Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml.orig >> create mode 100644 Documentation/devicetree/bindings/leds/leds-mt6323.txt.orig >> create mode 100644 Documentation/devicetree/bindings/ufs/mediatek,ufs.yaml.orig > > It looks like you accidentally imported a bunch of files from Git. > Ouch. Yeah, looks like I did. Will send a v10 soon, I apparently need some coffee :-P Thanks, Angelo > ChenYu > >> >> -- >> 2.46.0 >>
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