Re: [PATCH] ARM: dts: porter: Add missing PMIC nodes

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On Sat, Feb 24, 2018 at 11:11:31PM +0100, Marek Vasut wrote:
> On 02/18/2018 04:07 PM, Geert Uytterhoeven wrote:
> > Hi Marek,
> 
> Hi,
> 
> > CC Steve Twiss
> > 
> > On Sat, Feb 17, 2018 at 3:07 AM, Marek Vasut <marek.vasut@xxxxxxxxx> wrote:
> >> Add PMIC nodes to Porter and connect CPU DVFS supply. There is
> >> one DA9063 and one DA9210 on Porter, the only difference from
> >> the other boards is that DA9063 is at I2C address 0x5a rather
> >> than 0x58 .
> >>
> >> Signed-off-by: Marek Vasut <marek.vasut+renesas@xxxxxxxxx>
> > 
> > Thanks for your patch!
> > 
> >> --- a/arch/arm/boot/dts/r8a7791-porter.dts
> >> +++ b/arch/arm/boot/dts/r8a7791-porter.dts
> >> @@ -354,10 +354,47 @@
> >>         clock-frequency = <400000>;
> >>  };
> >>
> >> +&i2c6 {
> >> +       status = "okay";
> >> +       clock-frequency = <100000>;
> >> +
> >> +       pmic@5a {
> >> +               compatible = "dlg,da9063";
> > 
> > Does it matter that this is a DA9063L ("Variant 6B")?
> > Do we need a new compatible value, or can this be detected at runtime?
> 
> The driver detects it
> 
> da9063 6-005a: Device detected (chip-ID: 0x61, var-ID: 0x63)
> 
> Comparing the datasheets makes it obvious that 9063L is just a cut-down
> version of 9063, with less LDOs and one less ADC. So I think we should
> have extra compatible and have the driver restrict which LDOs can be
> used with this smaller PMIC.

Thanks, and sorry to ping yo about this while you were in transit.

It sounds like this patch should be updated.
Accordingly I'm marking it as "Changes Requested".



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