On Tue, 25 Aug 2020 18:17:10 +0530 Nishant Malpani <[email protected]> wrote:
> Append 'interrupts' as a required property and provide a suitable example > for using a GPIO interrupt line. > > Signed-off-by: Nishant Malpani <[email protected]> Hi Nishant, I don't understand why the interrupt is 'required'. Also note you should never be adding required properties to an existing binding. It's possible someone already used the binding as it stands and shipped a board with it burnt in a firmware. (bit unlikely but you never know!) Jonathan > --- > .../devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git > a/Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml > b/Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml > index 61adb2c2454b..cae593dd1ba7 100644 > --- a/Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml > +++ b/Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml > @@ -28,17 +28,23 @@ properties: > > spi-cpha: true > > + interrupts: > + maxItems: 1 > + > required: > - compatible > - reg > - spi-max-frequency > - spi-cpol > - spi-cpha > + - interrupts Why? Device works fine without one being supplied. It's not uncommon on embedded boards to not wire up interrupts due to a lack of pins and just rely on polling. > > additionalProperties: false > > examples: > - | > + #include <dt-bindings/gpio/gpio.h> > + #include <dt-bindings/interrupt-controller/irq.h> > spi { > #address-cells = <1>; > #size-cells = <0>; > @@ -48,6 +54,8 @@ examples: > spi-max-frequency = <5000000>; > spi-cpol; > spi-cpha; > + interrupt-parent = <&gpio>; > + interrupts = <25 IRQ_TYPE_EDGE_RISING>; > }; > }; > ...
