linux-kernel - Re: [PATCH v3 5/5] dt-bindings: display: mediatek: dpi: correct power-domains property

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: <vo5ia2cprt2eff2frximgkjkapyavam65m5gjxpgbht76wacuk@sttamlbk3iu4>
Date: Fri, 27 Sep 2024 11:30:02 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Macpaul Lin <macpaul.lin@...iatek.com>
Cc: Chun-Kuang Hu <chunkuang.hu@...nel.org>, 
	Philipp Zabel <p.zabel@...gutronix.de>, David Airlie <airlied@...il.com>, 
	Simona Vetter <simona@...ll.ch>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
	Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, Yong Wu <yong.wu@...iatek.com>, Joerg Roedel <joro@...tes.org>, 
	Will Deacon <will@...nel.org>, Robin Murphy <robin.murphy@....com>, 
	Matthias Brugger <matthias.bgg@...il.com>, 
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, CK Hu <ck.hu@...iatek.com>, Jitao shi <jitao.shi@...iatek.com>, 
	Tinghan Shen <tinghan.shen@...iatek.com>, Seiya Wang <seiya.wang@...iatek.com>, 
	Ben Lok <ben.lok@...iatek.com>, "Nancy . Lin" <nancy.lin@...iatek.com>, 
	dri-devel@...ts.freedesktop.org, linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, iommu@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
	Alexandre Mergnat <amergnat@...libre.com>, Bear Wang <bear.wang@...iatek.com>, 
	Pablo Sun <pablo.sun@...iatek.com>, Macpaul Lin <macpaul@...il.com>, Sen Chu <sen.chu@...iatek.com>, 
	Chris-qj chen <chris-qj.chen@...iatek.com>, 
	MediaTek Chromebook Upstream <Project_Global_Chrome_Upstream_Group@...iatek.com>, Chen-Yu Tsai <wenst@...omium.org>
Subject: Re: [PATCH v3 5/5] dt-bindings: display: mediatek: dpi: correct
 power-domains property

On Fri, Sep 27, 2024 at 02:50:41PM +0800, Macpaul Lin wrote:
> The MediaTek DPI module is typically associated with one of the
> following multimedia power domains:
>  - POWER_DOMAIN_DISPLAY
>  - POWER_DOMAIN_VDOSYS
>  - POWER_DOMAIN_MM
> The specific power domain used varies depending on the SoC design.
> 
> These power domains are shared by multiple devices within the SoC.
> In most cases, these power domains are enabled by other devices.
> As a result, the DPI module of legacy SoCs often functions correctly
> even without explicit configuration.
> 
> It is recommended to explicitly add the appropriate power domain
> property to the DPI node in the device tree. Hence drop the
> compatible checking for specific SoCs.
> 
> Fixes: 5474d49b2f79 ("dt-bindings: display: mediatek: dpi: Add power domains")
> Signed-off-by: Macpaul Lin <macpaul.lin@...iatek.com>
> Signed-off-by: Jitao Shi <jitao.shi@...iatek.com>
> Signed-off-by: Pablo Sun <pablo.sun@...iatek.com>
> ---
>  .../display/mediatek/mediatek,dpi.yaml        | 24 ++++++++-----------
>  1 file changed, 10 insertions(+), 14 deletions(-)

Reviewed-by: Krzysztof Kozlowski <krzk@...nel.org>

Best regards,
Krzysztof