Re: [PATCH 4/4] cpufreq: mediatek: add platform data and clean up voltage tracking logic

From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
To: Tim Chang <jia-wei.chang@mediatek.com>,
	"Rafael J . Wysocki" <rafael@kernel.org>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>
Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org, fan.chen@mediatek.com,
	louis.yu@mediatek.com, roger.lu@mediatek.com,
	Allen-yy.Lin@mediatek.com,
	Project_Global_Chrome_Upstream_Group@mediatek.com,
	hsinyi@google.com,
	Jia-Wei Chang <jia-wei.chang@mediatek.corp-partner.google.com>
Subject: Re: [PATCH 4/4] cpufreq: mediatek: add platform data and clean up voltage tracking logic
Date: Mon, 7 Mar 2022 20:03:55 +0100	[thread overview]
Message-ID: <a728aaa0-bde9-b9a9-971a-2e4b52f2b7bf@canonical.com> (raw)
In-Reply-To: <20220307122151.11666-5-jia-wei.chang@mediatek.com>

On 07/03/2022 13:21, Tim Chang wrote:
> 1. add required header files and remove unnecessary header files.
> 2. some soc needs different min/max voltage shift and voltage tracking
>    attributes. make these variables into platform data to support
>    future soc.
> 3. add need_voltage_tracking variable to platforma data. if true, it
>    indicates soc is required to realize the voltage tracking between
>    voltage of sram and voltage of cpu by software approach. otherwise,
>    the voltage tracking is realized by hardware approach.
> 4. add opp frequency look-up function as mtk_cpufreq_get() and
>    registered in cpufreq framework.
> 5. update voltage_tracking() logic and drv_init(). in drv_init(), it
>    always sets highest opp voltage before return. it could prevent from
>    high-freqeuncy-low-voltage issue if two or more clients using the
>    same regulator.

One change at a time.

> 
> Signed-off-by: Jia-Wei Chang <jia-wei.chang@mediatek.corp-partner.google.com>

Your SoB does not match from field.

Best regards,
Krzysztof