Hi Kieran On Wed, Jun 10, 2020 at 01:46:20PM +0100, Kieran Bingham wrote: > From: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx> > > The MAX9286 exposes a GPIO controller to control the two GPIO out pins > of the chip. > > These can in some configurations be used to control the power of the > cameras, and in the case of the V3M, it is used to enable power up > of the GMSL PoC regulator. > > The regulator can not (currently) be moddelled as a regulator due to > probe time issues, and instead are controlled through the use of a > gpio-hog. > > Signed-off-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx> I have missed if this should be a required property or not.. > --- > .../devicetree/bindings/media/i2c/maxim,max9286.yaml | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml b/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml > index f9d3e5712c59..7d75c3b63c0b 100644 > --- a/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml > +++ b/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml > @@ -46,6 +46,11 @@ properties: > description: GPIO connected to the \#PWDN pin with inverted polarity > maxItems: 1 > > + gpio-controller: true > + > + '#gpio-cells': > + const: 2 > + > ports: > type: object > description: | > -- > 2.25.1 >
