RE: [PATCH v2 2/2] arm64: dts: imx8mn-ddr4-evk: correct ldo1/ldo2 voltage range
From: Robin Gong
Date: Thu May 21 2020 - 22:26:59 EST
On 2020/05/22 Fabio Estevam <festevam@xxxxxxxxx> wrote:
> Hi Robin,
>
> On Thu, May 21, 2020 at 3:17 AM Robin Gong <yibin.gong@xxxxxxx> wrote:
> >
> > Correct ldo1 voltage range from wrong high group(3.0v~3.3v) to low
> > group
>
> Please use capital letter V for Volt.
>
> > (1.6v~1.9v) because the ldo1 should be 1.8v. Actually, two voltage
> > groups have been supported at bd718x7-regulator driver, hence, just
> > corrrect the voltage range to 1.6v~3.3v. For ldo2@xxxx, correct voltage range
> too.
> > Otherwise, ldo1 would be kept @3.0v and ldo2@xxxx which violate
> > i.mx8mn datasheet as the below warning log in kernel:
> >
> > [ 0.995524] LDO1: Bringing 1800000uV into 3000000-3000000uV
> > [ 0.999196] LDO2: Bringing 800000uV into 900000-900000uV
> >
> > Signed-off-by: Robin Gong <yibin.gong@xxxxxxx>
>
> You should add a Fixes tag and Cc stable on this one.
Okay, will address your comments in v3, thanks.