From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: Rex-BC Chen <rex-bc.chen@mediatek.com>,
rafael@kernel.org, viresh.kumar@linaro.org, robh+dt@kernel.org,
krzk+dt@kernel.org, matthias.bgg@gmail.com
Cc: jia-wei.chang@mediatek.com, roger.lu@mediatek.com,
hsinyi@google.com, khilman@baylibre.com,
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,
Project_Global_Chrome_Upstream_Group@mediatek.com
Subject: Re: [PATCH v5 1/9] dt-bindings: cpufreq: mediatek: Add MediaTek CCI property
Date: Thu, 5 May 2022 10:41:48 +0200 [thread overview]
Message-ID: <5d532a9c-8227-610c-d0ae-9352b91b42e5@collabora.com> (raw)
In-Reply-To: <20220504130540.5902-2-rex-bc.chen@mediatek.com>
Il 04/05/22 15:05, Rex-BC Chen ha scritto:
> MediaTek Cache Coherent Interconnect (CCI) uses software devfreq module
> for scaling clock frequency and adjust voltage.
> The phandle could be linked between CPU and MediaTek CCI for some
> MediaTek SoCs, like MT8183 and MT8186.
>
> The reason we need the link status between cpufreq and MediaTek cci is
> cpufreq and mediatek cci could share the same regulator in some MediaTek
> SoCs. Therefore, to prevent the issue of high frequency and low voltage,
> we need to use this to make sure mediatek cci is ready.
>
> Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
WARNING: multiple messages have this Message-ID (diff)
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: Rex-BC Chen <rex-bc.chen@mediatek.com>,
rafael@kernel.org, viresh.kumar@linaro.org, robh+dt@kernel.org,
krzk+dt@kernel.org, matthias.bgg@gmail.com
Cc: jia-wei.chang@mediatek.com, roger.lu@mediatek.com,
hsinyi@google.com, khilman@baylibre.com,
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,
Project_Global_Chrome_Upstream_Group@mediatek.com
Subject: Re: [PATCH v5 1/9] dt-bindings: cpufreq: mediatek: Add MediaTek CCI property
Date: Thu, 5 May 2022 10:41:48 +0200 [thread overview]
Message-ID: <5d532a9c-8227-610c-d0ae-9352b91b42e5@collabora.com> (raw)
In-Reply-To: <20220504130540.5902-2-rex-bc.chen@mediatek.com>
Il 04/05/22 15:05, Rex-BC Chen ha scritto:
> MediaTek Cache Coherent Interconnect (CCI) uses software devfreq module
> for scaling clock frequency and adjust voltage.
> The phandle could be linked between CPU and MediaTek CCI for some
> MediaTek SoCs, like MT8183 and MT8186.
>
> The reason we need the link status between cpufreq and MediaTek cci is
> cpufreq and mediatek cci could share the same regulator in some MediaTek
> SoCs. Therefore, to prevent the issue of high frequency and low voltage,
> we need to use this to make sure mediatek cci is ready.
>
> Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
WARNING: multiple messages have this Message-ID (diff)
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: Rex-BC Chen <rex-bc.chen@mediatek.com>,
rafael@kernel.org, viresh.kumar@linaro.org, robh+dt@kernel.org,
krzk+dt@kernel.org, matthias.bgg@gmail.com
Cc: jia-wei.chang@mediatek.com, roger.lu@mediatek.com,
hsinyi@google.com, khilman@baylibre.com,
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,
Project_Global_Chrome_Upstream_Group@mediatek.com
Subject: Re: [PATCH v5 1/9] dt-bindings: cpufreq: mediatek: Add MediaTek CCI property
Date: Thu, 5 May 2022 10:41:48 +0200 [thread overview]
Message-ID: <5d532a9c-8227-610c-d0ae-9352b91b42e5@collabora.com> (raw)
In-Reply-To: <20220504130540.5902-2-rex-bc.chen@mediatek.com>
Il 04/05/22 15:05, Rex-BC Chen ha scritto:
> MediaTek Cache Coherent Interconnect (CCI) uses software devfreq module
> for scaling clock frequency and adjust voltage.
> The phandle could be linked between CPU and MediaTek CCI for some
> MediaTek SoCs, like MT8183 and MT8186.
>
> The reason we need the link status between cpufreq and MediaTek cci is
> cpufreq and mediatek cci could share the same regulator in some MediaTek
> SoCs. Therefore, to prevent the issue of high frequency and low voltage,
> we need to use this to make sure mediatek cci is ready.
>
> Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-05-05 8:41 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-04 13:05 [PATCH v5 0/9] cpufreq: mediatek: Cleanup and support MT8183 and MT8186 Rex-BC Chen
2022-05-04 13:05 ` Rex-BC Chen
2022-05-04 13:05 ` Rex-BC Chen
2022-05-04 13:05 ` [PATCH v5 1/9] dt-bindings: cpufreq: mediatek: Add MediaTek CCI property Rex-BC Chen
2022-05-04 13:05 ` Rex-BC Chen
2022-05-04 13:05 ` Rex-BC Chen
2022-05-05 8:41 ` AngeloGioacchino Del Regno [this message]
2022-05-05 8:41 ` AngeloGioacchino Del Regno
2022-05-05 8:41 ` AngeloGioacchino Del Regno
2022-05-04 13:05 ` [PATCH v5 2/9] cpufreq: mediatek: Add opp notification support Rex-BC Chen
2022-05-04 13:05 ` Rex-BC Chen
2022-05-05 8:43 ` Viresh Kumar
2022-05-05 8:43 ` Viresh Kumar
2022-05-05 8:43 ` Viresh Kumar
2022-05-05 9:44 ` Rex-BC Chen
2022-05-05 9:44 ` Rex-BC Chen
2022-05-04 13:05 ` [PATCH v5 3/9] cpufreq: mediatek: Move voltage limits to platform data Rex-BC Chen
2022-05-04 13:05 ` Rex-BC Chen
2022-05-04 13:05 ` Rex-BC Chen
2022-05-05 8:52 ` Viresh Kumar
2022-05-05 8:52 ` Viresh Kumar
2022-05-05 8:52 ` Viresh Kumar
2022-05-05 10:29 ` Rex-BC Chen
2022-05-05 10:29 ` Rex-BC Chen
2022-05-05 10:29 ` Rex-BC Chen
2022-05-04 13:05 ` [PATCH v5 4/9] cpufreq: mediatek: Refine mtk_cpufreq_voltage_tracking() Rex-BC Chen
2022-05-04 13:05 ` Rex-BC Chen
2022-05-04 13:05 ` Rex-BC Chen
2022-05-04 13:05 ` [PATCH v5 5/9] cpufreq: mediatek: Link CCI device to CPU Rex-BC Chen
2022-05-04 13:05 ` Rex-BC Chen
2022-05-04 13:05 ` Rex-BC Chen
2022-05-04 13:05 ` [PATCH v5 6/9] cpufreq: mediatek: Add support for MT8186 Rex-BC Chen
2022-05-04 13:05 ` Rex-BC Chen
2022-05-04 13:05 ` Rex-BC Chen
2022-05-04 13:05 ` [PATCH v5 7/9] arm64: dts: mediatek: Add opp table and clock property for MT8183 cpufreq Rex-BC Chen
2022-05-04 13:05 ` Rex-BC Chen
2022-05-04 13:05 ` Rex-BC Chen
2022-05-04 13:05 ` [PATCH v5 8/9] arm64: dts: mediatek: Add MediaTek CCI node for MT8183 Rex-BC Chen
2022-05-04 13:05 ` Rex-BC Chen
2022-05-04 13:05 ` Rex-BC Chen
2022-05-04 13:05 ` [PATCH v5 9/9] arm64: dts: mediatek: Add mediatek,cci property for MT8183 cpufreq Rex-BC Chen
2022-05-04 13:05 ` [PATCH v5 9/9] arm64: dts: mediatek: Add mediatek, cci " Rex-BC Chen
2022-05-04 13:05 ` Rex-BC Chen
2022-05-05 8:53 ` [PATCH v5 0/9] cpufreq: mediatek: Cleanup and support MT8183 and MT8186 Viresh Kumar
2022-05-05 8:53 ` Viresh Kumar
2022-05-05 8:53 ` Viresh Kumar
2022-05-05 9:47 ` Rex-BC Chen
2022-05-05 9:47 ` Rex-BC Chen
2022-05-05 9:47 ` Rex-BC Chen
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