linux-kernel - Re: [PATCH v4 0/8] Add MT8195 HDMI support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-ID: <2b28421b-d3a9-46f5-a60e-bed84191c9f8@collabora.com>
Date: Mon, 15 Jan 2024 12:06:22 +0100
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Guillaume Ranquet <granquet@...libre.com>,
 Chunfeng Yun <chunfeng.yun@...iatek.com>,
 Kishon Vijay Abraham I <kishon@...com>, Vinod Koul <vkoul@...nel.org>,
 Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Matthias Brugger <matthias.bgg@...il.com>,
 Chun-Kuang Hu <chunkuang.hu@...nel.org>,
 Philipp Zabel <p.zabel@...gutronix.de>, David Airlie <airlied@...il.com>,
 Daniel Vetter <daniel@...ll.ch>, CK Hu <ck.hu@...iatek.com>,
 Jitao shi <jitao.shi@...iatek.com>
Cc: linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 dri-devel@...ts.freedesktop.org,
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, mac.shen@...iatek.com,
 stuart.lee@...iatek.com
Subject: Re: [PATCH v4 0/8] Add MT8195 HDMI support

Il 29/05/23 16:30, Guillaume Ranquet ha scritto:
> Add support for HDMI Tx on MT8195.
> 
> This includes a split of the current "legacy" hdmi driver into a common
> library of functions and two dedicated compilation units with specific
> code for mt8167 and another for the "v2" mt8195 SoC.
> 
> Support for the new mt8195 dpi/drm_drv adjustments to support hdmi.
> 
> Based on next-20230523
> 
> Still in my TODO-list for v5:

Hello,
sorry for bumping a year old topic; are you still interested in upstreaming this?

Cheers,
Angelo

> 
> - Removal of the 'is_internal_hdmi' flag in mtk_dpi. [1]
>      I Couldn't find a way to get rid of it with the way things are done
>      in mtk_drm_drv/mtk_ddp_comp.
> - Do not use a "virtual" device for the ddc v2 hw as it is embedded in
>    the hdmi IP. [2]
>      Seems that a lot of work is done by the framework when using a
>      proper device-tree entry that can be linked as the ddc-i2c-bus of
>      the hdmi-connector.
>      I will keep the virtual device unless I find a way to avoid
>      rewriting the framework code that handles this.
> 
> [1] : https://lore.kernel.org/all/988b0a7a-69bb-34e4-e777-1d9516221077@collabora.com/
> [2] : https://lore.kernel.org/all/7da1e73a0cca6867a060d5b69d45e8d4dfc89748.camel@mediatek.com/
> 
> Signed-off-by: Guillaume Ranquet <granquet@...libre.com>
> ---
> 
> Changes in v4:
> - Split phy related patches to another series (merged)
> - Removed regmap wrappers in mtk_hdmi
> - Removed colorimetry related changes as this initial version only
>    support one color depth
> - Fixed dt-bindings properties
> - Removed some now useless clocks from mtk_hdmi_v2 and mtk_dpi
> - Link to v3: https://lore.kernel.org/r/20220919-v3-0-a803f2660127@baylibre.com
> 
> Changes in v3:
> - phy: Grouped register and bit definition together to add clarity
> - dt-bindings: Addressed comments
> - Link to v2: https://lore.kernel.org/r/20220919-v2-0-8419dcf4f09d@baylibre.com
> 
> Changes in v2:
> - Removed syscon requirement from the hdmi node
> - Use as much as possible bit FIELD_PREP/FIELD_GET macros across all the
>    patches
> - Make cec optional dynamically instead of hardcoded with a flag
> - Renamed hdmi variants to v1 (legacy) and v2 (mt8195) while waiting for
>    a better name
> - Rework hdmi v2 code to use a connector (same as v1)
> - Remove "magic" 0x43 addr special handling in hdmi ddc code
> - Link to v1: https://lore.kernel.org/r/20220919-v1-0-4844816c9808@baylibre.com
> 
> ---
> Guillaume Ranquet (8):
>        dt-bindings: display: mediatek: add MT8195 hdmi bindings
>        drm/mediatek: hdmi: use a regmap instead of iomem
>        drm/mediatek: extract common functions from the mtk hdmi driver
>        drm/mediatek: hdmi: make the cec dev optional
>        drm/mediatek: hdmi: add v2 support
>        drm/mediatek: hdmi: v2: add audio support
>        dt-bindings: display: mediatek: dpi: Add compatible for MediaTek MT8195
>        drm/mediatek: dpi: Add mt8195 hdmi to DPI driver
> 
>   .../bindings/display/mediatek/mediatek,dpi.yaml    |    1 +
>   .../bindings/display/mediatek/mediatek,hdmi.yaml   |   59 +-
>   .../display/mediatek/mediatek,mt8195-hdmi-ddc.yaml |   45 +
>   drivers/gpu/drm/mediatek/Kconfig                   |    2 +
>   drivers/gpu/drm/mediatek/Makefile                  |    5 +-
>   drivers/gpu/drm/mediatek/mtk_dpi.c                 |  121 +-
>   drivers/gpu/drm/mediatek/mtk_dpi_regs.h            |    5 +
>   drivers/gpu/drm/mediatek/mtk_hdmi.c                |  773 ++----------
>   drivers/gpu/drm/mediatek/mtk_hdmi.h                |   18 +
>   drivers/gpu/drm/mediatek/mtk_hdmi_common.c         |  437 +++++++
>   drivers/gpu/drm/mediatek/mtk_hdmi_common.h         |  208 ++++
>   drivers/gpu/drm/mediatek/mtk_hdmi_ddc_v2.c         |  362 ++++++
>   drivers/gpu/drm/mediatek/mtk_hdmi_regs_v2.h        |  276 +++++
>   drivers/gpu/drm/mediatek/mtk_hdmi_v2.c             | 1303 ++++++++++++++++++++
>   drivers/gpu/drm/mediatek/mtk_hdmi_v2.h             |   32 +
>   15 files changed, 2955 insertions(+), 692 deletions(-)
> ---
> base-commit: c8a64c6a78c54887da437098d97dc2accc689e89
> change-id: 20220919-hdmi_mtk
> 
> Best regards,