linux-kernel - RE: [PATCH 6/7] ARM: imx: imx7ulp: support HSRUN mode

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Message-ID: <DB7PR04MB449032635121DD11181FC2F388020@DB7PR04MB4490.eurprd04.prod.outlook.com>
Date:   Wed, 5 Feb 2020 02:59:50 +0000
From:   Peng Fan <peng.fan@....com>
To:     Fabio Estevam <festevam@...il.com>
CC:     Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Stephen Boyd <sboyd@...nel.org>, Abel Vesa <abel.vesa@....com>,
        Aisheng Dong <aisheng.dong@....com>,
        Leonard Crestez <leonard.crestez@....com>,
        Sascha Hauer <kernel@...gutronix.de>,
        dl-linux-imx <linux-imx@....com>, Jacky Bai <ping.bai@....com>,
        Anson Huang <anson.huang@....com>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-clk <linux-clk@...r.kernel.org>
Subject: RE: [PATCH 6/7] ARM: imx: imx7ulp: support HSRUN mode

> Subject: Re: [PATCH 6/7] ARM: imx: imx7ulp: support HSRUN mode
> 
> Hi Peng,
> 
> On Tue, Feb 4, 2020 at 10:41 AM <peng.fan@....com> wrote:
> >
> > From: Peng Fan <peng.fan@....com>
> >
> > Configure pmprot to let ARM core could run into HSRUN mode.
> >
> > Signed-off-by: Peng Fan <peng.fan@....com>
> > ---
> 
> > +       writel_relaxed(BM_PMPROT_AHSRUN, smc1_base +
> SMC_PMPROT);
> 
> HSRUN cannot be configured unconditionally because if i.MX7ULP runs with
> LDO-enabled it cannot run in HSRUN mode.

Thanks, I'll update to add a check LDO mode here.

Thanks,
Peng.