[PATCH v2 2/3] arm64: dts: renesas: salvator-common: Configure PMIC for DDR Backup Power

[Geert Uytterhoeven]

Hi Sergei,

On Wed, Mar 14, 2018 at 4:17 PM, Sergei Shtylyov
<sergei.shtylyov at cogentembedded.com> wrote:
> On 03/14/2018 03:09 PM, Geert Uytterhoeven wrote:
>> On Salvator-X(S), all of the DDR0, DDR1, DDR0C, and DDR1C power rails
>> need to be kept powered when backup mode is enabled.  Reflect this in
>> the "rohm,ddr-backup-power" property for the BD9571MWV PMIC node.
>>
>> The accessory power switch (SW23) is a toggle switch, hense specify
>> "rohm,rstbmode-level".
>>
>> Signed-off-by: Geert Uytterhoeven <geert+renesas at glider.be>
>> ---
>> v2:
>>   - Add rohm,rstbmode-level.
>> ---
>>  arch/arm64/boot/dts/renesas/salvator-common.dtsi | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/renesas/salvator-common.dtsi b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
>> index 2a7f36abd2dd85c6..80794c38c2669d75 100644
>> --- a/arch/arm64/boot/dts/renesas/salvator-common.dtsi
>> +++ b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
>> @@ -376,6 +376,8 @@
>>               #interrupt-cells = <2>;
>>               gpio-controller;
>>               #gpio-cells = <2>;
>> +             rohm,ddr-backup-power = <15>;
>
>   Why not 0xf if those are all bit flags?

Because it's a small number?
Does it matter?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds