Re: [PATCH v16 0/7] soc: mediatek: SVS: introduce MTK SVS

From: Matthias Brugger <matthias.bgg@gmail.com>
To: Roger Lu <roger.lu@mediatek.com>,
	Enric Balletbo Serra <eballetbo@gmail.com>,
	Kevin Hilman <khilman@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Nicolas Boichat <drinkcat@google.com>,
	Stephen Boyd <sboyd@kernel.org>,
	Philipp Zabel <p.zabel@pengutronix.de>
Cc: Fan Chen <fan.chen@mediatek.com>,
	HenryC Chen <HenryC.Chen@mediatek.com>,
	 YT Lee <yt.lee@mediatek.com>,
	Xiaoqing Liu <Xiaoqing.Liu@mediatek.com>,
	Charles Yang <Charles.Yang@mediatek.com>,
	Angus Lin <Angus.Lin@mediatek.com>,
	Mark Rutland <mark.rutland@arm.com>, Nishanth Menon <nm@ti.com>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org,
	linux-pm@vger.kernel.org,
	Project_Global_Chrome_Upstream_Group@mediatek.com
Subject: Re: [PATCH v16 0/7] soc: mediatek: SVS: introduce MTK SVS
Date: Thu, 30 Dec 2021 14:18:01 +0100	[thread overview]
Message-ID: <abd9332b-dace-f75a-33f5-be88fe516784@gmail.com> (raw)
In-Reply-To: <20210428065440.3704-1-roger.lu@mediatek.com>

On 28/04/2021 08:54, Roger Lu wrote:
> 1. SVS driver uses OPP adjust event in [1] to update OPP table voltage part.
> 2. SVS driver gets thermal/GPU device by node [2][3] and CPU device by get_cpu_device().
> After retrieving subsys device, SVS driver calls device_link_add() to make sure probe/suspend callback priority.
> 3. SVS dts refers to reset controller [4] to help reset SVS HW.
> 
> #mt8183 SVS related patches
> [1] https://patchwork.kernel.org/patch/11193513/

Already mainline, please either refer to the commit, to make it clear it's 
maineline or drop it.

> [2] https://patchwork.kernel.org/project/linux-mediatek/patch/20201013102358.22588-2-michael.kao@mediatek.com/

Same here.

> [3] https://patchwork.kernel.org/project/linux-mediatek/patch/20200306041345.259332-3-drinkcat@chromium.org/

Same here,

> 
> #mt8192 SVS related patches
> [1] https://patchwork.kernel.org/patch/11193513/

Same here, it's actually the same link as [1].

> [2] https://patchwork.kernel.org/project/linux-mediatek/patch/20201223074944.2061-1-michael.kao@mediatek.com/
> [3] https://lore.kernel.org/patchwork/patch/1360551/
> [4] https://patchwork.kernel.org/project/linux-mediatek/patch/20200817030324.5690-5-crystal.guo@mediatek.com/

There are many dependencies for that. Some patches need resubmit, others seem to 
be stale. I'd advise to concentrate on mt8183 for now and add support for mt8192 
once dependencies have settled.

Regards,
Matthias

> 
> changes since v15:
> - Put (*set_freqs_pct) and (*get_vops) in struct svs_bank because they are part of svs bank's operation
> - Add define "SVSB_INIT02_RM_DVTFIXED" and "SVSB_MON_VOLT_IGNORE" to make control clearly.
> - Remove unnecessary parenthesis
> 
> Roger Lu (7):
>    [v16,1/7] dt-bindings: soc: mediatek: add mtk svs dt-bindings
>    [v16,2/7] arm64: dts: mt8183: add svs device information
>    [v16,3/7] soc: mediatek: SVS: introduce MTK SVS engine
>    [v16,4/7] soc: mediatek: SVS: add debug commands
>    [v16,5/7] dt-bindings: soc: mediatek: add mt8192 svs dt-bindings
>    [v16,6/7] arm64: dts: mt8192: add svs device information
>    [v16,7/7] soc: mediatek: SVS: add mt8192 SVS GPU driver
> 
>   .../bindings/soc/mediatek/mtk-svs.yaml        |   92 +
>   arch/arm64/boot/dts/mediatek/mt8183.dtsi      |   18 +
>   arch/arm64/boot/dts/mediatek/mt8192.dtsi      |   34 +
>   drivers/soc/mediatek/Kconfig                  |   10 +
>   drivers/soc/mediatek/Makefile                 |    1 +
>   drivers/soc/mediatek/mtk-svs.c                | 2524 +++++++++++++++++
>   6 files changed, 2679 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/soc/mediatek/mtk-svs.yaml
>   create mode 100644 drivers/soc/mediatek/mtk-svs.c
> 
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> 

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