linux-kernel - Re: [PATCH V2] ARM: dts: imx6: Remove incorrect power supply assignment

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Date:   Thu, 9 Jan 2020 18:39:30 +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, andreas@...nade.info,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Linux-imx@....com
Subject: Re: [PATCH V2] ARM: dts: imx6: Remove incorrect power supply
 assignment

On Thu, Jan 09, 2020 at 05:38:02PM +0800, Anson Huang wrote:
> The vdd3p0 LDO's input should be from external USB VBUS directly, NOT
> PMIC's power supply, the vdd3p0 LDO's target output voltage can be
> controlled by SW, and it requires input voltage to be high enough, with
> incorrect power supply assigned, if the power supply's voltage is lower
> than the LDO target output voltage, it will return fail and skip the LDO
> voltage adjustment, so remove the power supply assignment for vdd3p0 to
> avoid such scenario.

I applied v1 patches with using this version of commit log.

Shawn