linux-kernel - Re: [PATCH v3 14/21] arm64: dts: hi3660: enable idle states

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Date:   Thu, 15 Jun 2017 10:55:07 +0800
From:   Guodong Xu <guodong.xu@...aro.org>
To:     Leo Yan <leo.yan@...aro.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        "xuwei (O)" <xuwei5@...ilicon.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Kefeng Wang <wangkefeng.wang@...wei.com>,
        Xuejiancheng <xuejiancheng@...ilicon.com>,
        Peter Griffin <peter.griffin@...aro.org>,
        "Chenfeng (puck)" <puck.chen@...ilicon.com>,
        Lee Jones <lee.jones@...aro.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Arnd Bergmann <arnd@...db.de>,
        Zhangfei Gao <zhangfei.gao@...aro.org>,
        devicetree@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-mmc@...r.kernel.org, linux-pci <linux-pci@...r.kernel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Kevin Wang <jean.wangtao@...aro.org>
Subject: Re: [PATCH v3 14/21] arm64: dts: hi3660: enable idle states

On Thu, Jun 15, 2017 at 8:23 AM, Leo Yan <leo.yan@...aro.org> wrote:
> On Wed, Jun 14, 2017 at 04:23:31PM +0800, Guodong Xu wrote:
>> From: Leo Yan <leo.yan@...aro.org>
>>
>> On Hi3660 there have two clusters, one is CA53 cluster and another is
>> CA73 cluster. This two clusters have different idle states separately.
>> With Daniel Lezcano's patch (ARM: cpuidle: Support asymmetric idle
>> definition), now ARM idle driver can support different clusters with
>> different idle states.
>>
>> Base on this, this patch is to bind two clusters idle states on Hi3660.
>> Except the "WFI" states are enabled by default for all CPUs, this patch
>> also binds below extra idle states:
>>
>> - CA53 CPUs have two more states:
>>   CPU_SLEEP:       CPU power off state
>>   CLUSTER_SLEEP_0: Cluster power off state
>>
>> - CA73 CPUs have three more states:
>>   CPU_NAP:         CPU retention state
>>   CPU_SLEEP:       CPU power off state
>>   CLUSTER_SLEEP_1: Cluster power off state
>
> Hi Guodong, Wei and all,
>
> As Daniel reminded, this patch is dependent on patch (ARM: cpuidle:
> Support asymmetric idle definition) [1] but his patch has not been
> finally merged yet. So let us hold on this patch for Daniel's patch
> is picked up firstly.
>
> At the meantime welcome the review and comment for this patch ahead.
>

Ok, so, I will drop this patch, and resend my patchset as v4.

-Guodong

> [1] https://patchwork.kernel.org/patch/9781869/
>
> [...]
>
> Thanks,
> Leo Yan