| Message ID | 20191011144347.19146-7-miquel.raynal@bootlin.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Introduce max12xx ADC support | expand |
On Fri, 11 Oct 2019 16:43:45 +0200 Miquel Raynal <miquel.raynal@bootlin.com> wrote: > The chips have a 'start conversion' and a 'end of conversion' pair of > pins. They can be used but this is absolutely not mandatory as regular > polling is supported by the chip depending on its internal clocking > setup. > > There is no physical reason to force the use of interrupts so turn > them optional. > > Also, once the interrupt turned optional, these devices fit perfectly > the "trivial devices" described in the generic (yaml) bindings file, so > instead of converting this text file to json schema, we can just add > the relevant compatibles in: > Documentation/devicetree/bindings/trivial-devices.yaml. > > Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> I guess this keeps things consistent event if we are about to delete it ;) Applied. > --- > Documentation/devicetree/bindings/iio/adc/max1027-adc.txt | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt b/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt > index e680c61dfb84..7b23d68f655c 100644 > --- a/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt > +++ b/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt > @@ -3,6 +3,8 @@ > Required properties: > - compatible: Should be "maxim,max1027" or "maxim,max1029" or "maxim,max1031" > - reg: SPI chip select number for the device > + > +Optional properties: > - interrupts: IRQ line for the ADC > see: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt >
diff --git a/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt b/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt index e680c61dfb84..7b23d68f655c 100644 --- a/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt +++ b/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt @@ -3,6 +3,8 @@ Required properties: - compatible: Should be "maxim,max1027" or "maxim,max1029" or "maxim,max1031" - reg: SPI chip select number for the device + +Optional properties: - interrupts: IRQ line for the ADC see: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
The chips have a 'start conversion' and a 'end of conversion' pair of pins. They can be used but this is absolutely not mandatory as regular polling is supported by the chip depending on its internal clocking setup. There is no physical reason to force the use of interrupts so turn them optional. Also, once the interrupt turned optional, these devices fit perfectly the "trivial devices" described in the generic (yaml) bindings file, so instead of converting this text file to json schema, we can just add the relevant compatibles in: Documentation/devicetree/bindings/trivial-devices.yaml. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> --- Documentation/devicetree/bindings/iio/adc/max1027-adc.txt | 2 ++ 1 file changed, 2 insertions(+)