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SubjectRE: [PATCH 1/2] ARM: dts: pfuze3000: update sw1a/vldo4 voltage range
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Hi, Fabio

Anson Huang
Best Regards!


> -----Original Message-----
> From: Fabio Estevam [mailto:festevam@gmail.com]
> Sent: Sunday, March 18, 2018 8:55 PM
> To: Anson Huang <anson.huang@nxp.com>
> Cc: Robin Gong <yibin.gong@nxp.com>; Shawn Guo <shawnguo@kernel.org>;
> Sascha Hauer <kernel@pengutronix.de>; Fabio Estevam
> <fabio.estevam@nxp.com>; Rob Herring <robh+dt@kernel.org>; Mark Rutland
> <mark.rutland@arm.com>; Russell King - ARM Linux <linux@armlinux.org.uk>;
> Liam Girdwood <lgirdwood@gmail.com>; Mark Brown <broonie@kernel.org>;
> dl-linux-imx <linux-imx@nxp.com>; moderated list:ARM/FREESCALE IMX / MXC
> ARM ARCHITECTURE <linux-arm-kernel@lists.infradead.org>; open list:OPEN
> FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
> <devicetree@vger.kernel.org>; linux-kernel <linux-kernel@vger.kernel.org>
> Subject: Re: [PATCH 1/2] ARM: dts: pfuze3000: update sw1a/vldo4 voltage range
>
> On Sat, Mar 17, 2018 at 11:23 PM, Anson Huang <anson.huang@nxp.com>
> wrote:
>
> > I thought the max value here means the capability of regulator itself, like the
> internal
>
> No it is not.
>
> Please check Documentation/devicetree/bindings/regulator/regulator.txt:
>
> "- regulator-max-microvolt: largest voltage consumers may set"

OK, so I should change the max value of SW1A according to board design, such
as for MX7D, it is 1.075V for max cpu-freq's voltage, set it to 1.075 in dts?

Also, according to the binding doc, do you think the anatop's vdd_arm and vdd_soc/pu's max
value also need to be adjusted to match the value define in each soc's datasheet?

Anson.

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