linux-kernel - Re: [PATCH 1/2] soc: imx: gpc: ARM power domain should be always-on

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Message-ID: <20180125102941.GA24622@b29396-OptiPlex-7040>
Date:   Thu, 25 Jan 2018 18:29:41 +0800
From:   Dong Aisheng <dongas86@...il.com>
To:     Anson Huang <Anson.Huang@....com>
Cc:     shawnguo@...nel.org, kernel@...gutronix.de, fabio.estevam@....com,
        robh+dt@...nel.org, aisheng.dong@....com, mark.rutland@....com,
        linux@...linux.org.uk, Linux-imx@....com,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] soc: imx: gpc: ARM power domain should be always-on

On Wed, Jan 24, 2018 at 12:42:13AM +0800, Anson Huang wrote:
> ARM power domain does NOT support runtime off, always-on
> flag should be set to avoid incorrect power state in
> pm_genpd_summary:
> 
> Before:
> 
> root@...6qpdlsolox:~# cat /sys/kernel/debug/pm_genpd/pm_genpd_summary
> domain                          status          slaves
>     /device                                             runtime status
> ----------------------------------------------------------------------
> ARM                             off-0
> 
> After:
> 
> root@...6qpdlsolox:~# cat /sys/kernel/debug/pm_genpd/pm_genpd_summary
> domain                          status          slaves
>     /device                                             runtime status
> ----------------------------------------------------------------------
> ARM                             on
> 
> Signed-off-by: Anson Huang <Anson.Huang@....com>

Acked-by: Dong Aisheng <aisheng.dong@....com>

Regards
Dong Aisheng