linux-kernel - Re: [PATCH v14 4/4] CMDQ: save more energy in idle

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Date:   Fri, 30 Sep 2016 16:56:06 +0800
From:   Horng-Shyang Liao <hs.liao@...iatek.com>
To:     Jassi Brar <jassisinghbrar@...il.com>
CC:     Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Daniel Kurtz <djkurtz@...omium.org>,
        "Sascha Hauer" <s.hauer@...gutronix.de>,
        Devicetree List <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <srv_heupstream@...iatek.com>,
        Sascha Hauer <kernel@...gutronix.de>,
        "Philipp Zabel" <p.zabel@...gutronix.de>,
        Nicolas Boichat <drinkcat@...omium.org>,
        "CK HU" <ck.hu@...iatek.com>, cawa cheng <cawa.cheng@...iatek.com>,
        Bibby Hsieh <bibby.hsieh@...iatek.com>,
        YT Shen <yt.shen@...iatek.com>,
        Daoyuan Huang <daoyuan.huang@...iatek.com>,
        Damon Chu <damon.chu@...iatek.com>,
        "Josh-YC Liu" <josh-yc.liu@...iatek.com>,
        Glory Hung <glory.hung@...iatek.com>,
        Jiaguang Zhang <jiaguang.zhang@...iatek.com>,
        Dennis-YC Hsieh <dennis-yc.hsieh@...iatek.com>,
        Monica Wang <monica.wang@...iatek.com>, <hs.liao@...iatek.com>
Subject: Re: [PATCH v14 4/4] CMDQ: save more energy in idle

On Fri, 2016-09-23 at 17:28 +0800, Horng-Shyang Liao wrote:
> On Thu, 2016-09-22 at 13:22 +0530, Jassi Brar wrote:
> > On Mon, Sep 5, 2016 at 7:14 AM, HS Liao <hs.liao@...iatek.com> wrote:
> > > Use clk_disable_unprepare instead of clk_disable to save more energy
> > > when CMDQ is idle.
> > >
> > > Signed-off-by: HS Liao <hs.liao@...iatek.com>
> > > ---
> > >  drivers/mailbox/mtk-cmdq.c | 54 +++++++++++++++++++++++++++++++++++++++-------
> > 
> > The driver is introduced by second patch of the set, so it makes sense
> > to merge this patch into patch 2/4.
> 
> Hi Jassi,
> 
> Could you take a look at previous discussion between Matthias and me?
> http://lkml.iu.edu/hypermail/linux/kernel/1606.2/05239.html
> His basic idea is to simplify first working version.
> Therefore, I move some code to this patch.
> 
> Thanks,
> HS
> 

Hi Jassi,

What do you think about our previous discussion?

Thanks,
HS