linux-kernel - RE: [PATCH] arm: imx: suspend/resume: use outer

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Message-ID: <DB6PR04MB32218D8A75D4D9F6CB2D2F3C88060@DB6PR04MB3221.eurprd04.prod.outlook.com>
Date:   Tue, 26 Dec 2017 06:52:45 +0000
From:   Peng Fan <peng.fan@....com>
To:     Shawn Guo <shawnguo@...nel.org>
CC:     "A.s. Dong" <aisheng.dong@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Russell King <linux@...linux.org.uk>,
        "Fabio Estevam" <fabio.estevam@....com>,
        Sascha Hauer <kernel@...gutronix.de>,
        "van.freenix@...il.com" <van.freenix@...il.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: RE: [PATCH] arm: imx: suspend/resume: use outer_disable/resume

Hi Shawn,

> -----Original Message-----
> From: Shawn Guo [mailto:shawnguo@...nel.org]
> Sent: Tuesday, December 26, 2017 11:31 AM
> To: Peng Fan <peng.fan@....com>
> Cc: A.s. Dong <aisheng.dong@....com>; linux-kernel@...r.kernel.org; Russell
> King <linux@...linux.org.uk>; Fabio Estevam <fabio.estevam@....com>;
> Sascha Hauer <kernel@...gutronix.de>; van.freenix@...il.com; linux-arm-
> kernel@...ts.infradead.org
> Subject: Re: [PATCH] arm: imx: suspend/resume: use outer_disable/resume
> 
> On Sun, Dec 10, 2017 at 08:07:18PM +0800, Peng Fan wrote:
> > Use outer_disable/resume for suspend/resume.
> > With the two APIs used, code could be simplified and easy to extend to
> > introduce l2c_write_sec for i.MX platforms when moving Linux Kernel
> > runs in non-secure world.
> >
> > Signed-off-by: Peng Fan <peng.fan@....com>
> > Cc: Shawn Guo <shawnguo@...nel.org>
> > Cc: Sascha Hauer <kernel@...gutronix.de>
> > Cc: Fabio Estevam <fabio.estevam@....com>
> > Cc: Russell King <linux@...linux.org.uk>
> > Cc: Dong Aisheng <aisheng.dong@....com>
> > ---
> >  arch/arm/mach-imx/pm-imx6.c      |  2 ++
> >  arch/arm/mach-imx/suspend-imx6.S | 24 ------------------------
> 
> I'm fine with the patch in general.  But this piece of code is running on a few
> i.MX6 platforms, and I'm wondering on which SoCs you have verified the
> change work fine.

I tested it on 6Q-SDB board. Is it ok?

Thanks,
Peng.

> 
> Shawn