Hi Rob,
thanks for comments
On Mon, Jan 08, 2018 at 09:35:55PM -0600, Rob Herring wrote:
> On Thu, Jan 04, 2018 at 10:52:33AM +0100, Jacopo Mondi wrote:
> > Describe newly introduced OF properties for ov7670 image sensor.
> > The driver supports two standard properties to configure synchronism
> > signals polarities and two custom properties already supported as
> > platform data options by the driver.
>
> Missing S-o-b.
>
Ups, that was trivial, sorry about that
> > ---
> > Documentation/devicetree/bindings/media/i2c/ov7670.txt | 14 ++++++++++++++
> > 1 file changed, 14 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/media/i2c/ov7670.txt b/Documentation/devicetree/bindings/media/i2c/ov7670.txt
> > index 826b656..57ded18 100644
> > --- a/Documentation/devicetree/bindings/media/i2c/ov7670.txt
> > +++ b/Documentation/devicetree/bindings/media/i2c/ov7670.txt
> > @@ -9,11 +9,22 @@ Required Properties:
> > - clocks: reference to the xclk input clock.
> > - clock-names: should be "xclk".
> >
> > +The following properties, as defined by video interfaces OF bindings
> > +"Documentation/devicetree/bindings/media/video-interfaces.txt" are supported:
> > +
> > +- hsync-active: active state of the HSYNC signal, 0/1 for LOW/HIGH respectively.
> > +- vsync-active: active state of the VSYNC signal, 0/1 for LOW/HIGH respectively.
>
> Don't these go in the endpoint? Not sure offhand.
>
Yes they do. I will list them as "Optional endpoint properties", and
> > +
> > +Default is high active state for both vsync and hsync signals.
> > +
> > Optional Properties:
> > - reset-gpios: reference to the GPIO connected to the resetb pin, if any.
> > Active is low.
> > - powerdown-gpios: reference to the GPIO connected to the pwdn pin, if any.
> > Active is high.
> > +- ov7670,pll-bypass: set to 1 to bypass PLL for pixel clock generation.
>
> Boolean instead?
>
Do we have booleans? I had a look at device tree specs and grep for
"true"/"false" in arch/arm*/boot/dts, and didn't find that much.
Seems like they're actually strings, am I wrong?
Thanks
j
> > +- ov7670,pclk-hb-disable: set to 1 to suppress pixel clock output signal during
> > + horizontal blankings.
>
> ditto
>
> >
> > The device node must contain one 'port' child node for its digital output
> > video port, in accordance with the video interface bindings defined in
> > @@ -34,6 +45,9 @@ Example:
> > assigned-clocks = <&pck0>;
> > assigned-clock-rates = <25000000>;
> >
> > + vsync-active = <0>;
> > + ov7670,pclk-hb-disable = <1>;
> > +
> > port {
> > ov7670_0: endpoint {
> > remote-endpoint = <&isi_0>;
> > --
> > 2.7.4
> >
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