linux-kernel - Re: [PATCH] arm64: dts: imx8mq-evk: VDD

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Message-ID: <20191025060444.GC3208@dragon>
Date:   Fri, 25 Oct 2019 14:04:46 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Anson Huang <Anson.Huang@....com>
Cc:     robh+dt@...nel.org, mark.rutland@....com, s.hauer@...gutronix.de,
        kernel@...gutronix.de, festevam@...il.com, l.stach@...gutronix.de,
        ccaione@...libre.com, daniel.baluta@....com,
        andrew.smirnov@...il.com, abel.vesa@....com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Linux-imx@....com
Subject: Re: [PATCH] arm64: dts: imx8mq-evk: VDD_ARM power rail is always ON

On Wed, Oct 09, 2019 at 03:04:19PM +0800, Anson Huang wrote:
> On i.MX8MQ EVK board, VDD_ARM is from a DC-DC converter which
> is always ON, the GPIO1_IO13 is ONLY to switch VDD_ARM's voltage
> between 0.9V and 1V for CPU DVFS, so VDD_ARM's GPIO regulator
> should be always ON to avoid below confusion after kernel boot
> up:
> 
> imx8mqevk login:
> [   31.776619] vdd_arm: disabling
> 
> Signed-off-by: Anson Huang <Anson.Huang@....com>

Applied, thanks.