linux-kernel - Re: [PATCH V2] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on

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Message-ID: <CAOMZO5CfmYvE0hLfeni6wQfE6j7C2qa9teQbo3zOWCnq33zhBw@mail.gmail.com>
Date:   Tue, 26 Jun 2018 22:19:56 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Anson Huang <Anson.Huang@....com>
Cc:     Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Sascha Hauer <kernel@...gutronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        NXP Linux Team <Linux-imx@....com>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V2] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on

Hi Anson,

On Mon, Jun 25, 2018 at 10:01 PM, Anson Huang <Anson.Huang@....com> wrote:
> On i.MX6SLL EVK board, PFuze100's SW4 is supplying
> LPDDR3, it needs to be always on. This patch fixes
> Linux kernel boot up hang caused by commit
> (5fe156f regulator: pfuze100: add enable/disable for switch),
> because SW4 is turned off unexpectedly:

Nit: The proper way to reference a commit is:

commit 5fe156f1cab4 ("regulator: pfuze100: add enable/disable for switch")

12 char for the commit ID and the commit name inside (" ").

> [    1.693613] cfg80211: failed to load regulatory.db
> [    1.700063] SW4: disabling
> [    1.703973] SWBST: disabling

Probably worth adding the Fixes tag so that it can fix the boot
regression in 4.18-rc:

Fixes: 5fe156f1cab4 ("regulator: pfuze100: add enable/disable for switch")

> Signed-off-by: Anson Huang <Anson.Huang@....com>

Reviewed-by: Fabio Estevam <fabio.estevam@....com>