Re: [PATCH v2] dt-binding: eeprom: at24: add supply properties

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, Oct 24, 2019 at 3:22 PM Bartosz Golaszewski
<bgolaszewski@xxxxxxxxxxxx> wrote:
>
> pt., 18 paź 2019 o 10:26 Bibby Hsieh <bibby.hsieh@xxxxxxxxxxxx> napisał(a):
> >
> > In some platforms, they disable the power-supply of eeprom and i2c due
> > to power consumption reduction.
> >
> > This patch add two supply properties: vcc-supply, i2c-supply.
> >
> > Changes since v1:
> >  - change supply name
> >  - rebase to next
> >
> > Signed-off-by: Bibby Hsieh <bibby.hsieh@xxxxxxxxxxxx>
> > ---
> >  Documentation/devicetree/bindings/eeprom/at24.yaml | 8 ++++++++
> >  1 file changed, 8 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/eeprom/at24.yaml b/Documentation/devicetree/bindings/eeprom/at24.yaml
> > index e8778560d966..578487a5d9b7 100644
> > --- a/Documentation/devicetree/bindings/eeprom/at24.yaml
> > +++ b/Documentation/devicetree/bindings/eeprom/at24.yaml
> > @@ -167,6 +167,14 @@ properties:
> >      minimum: 1
> >      maximum: 8
> >
> > +  vcc-supply:
> > +    description:
> > +      phandle of the regulator that provides the supply voltage.
> > +
> > +  i2c-sypply:
> > +    description:
> > +      phandle to the regulator that provides power to i2c.
> > +
>
> Something was bothering me about this patch so I came back to take a
> look. Can you explain what i2c actually stands for in this doc? I hope
> I'm misinterpreting something and it isn't that the driver disables
> the regulator powering the i2c bus controller?

In our case it's the regulator that the I2C bus is pulled up to.

Best regards,
Tomasz




[Index of Archives]     [Linux GPIO]     [Linux SPI]     [Linux Hardward Monitoring]     [LM Sensors]     [Linux USB Devel]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux