On Wed, 26 Feb 2020 15:06:53 +0530 Pratyush Yadav <p.yadav@xxxxxx> wrote: > Allow spi devices to express DTR receive and transmit capabilities via > the properties "spi-rx-dtr" and "spi-tx-dtr". Is the RX/TX granularity really useful? > > Signed-off-by: Pratyush Yadav <p.yadav@xxxxxx> > --- > .../devicetree/bindings/spi/spi-controller.yaml | 10 ++++++++++ > 1 file changed, 10 insertions(+) > > diff --git a/Documentation/devicetree/bindings/spi/spi-controller.yaml b/Documentation/devicetree/bindings/spi/spi-controller.yaml > index 1e0ca6ccf64b..7a84debed213 100644 > --- a/Documentation/devicetree/bindings/spi/spi-controller.yaml > +++ b/Documentation/devicetree/bindings/spi/spi-controller.yaml > @@ -120,6 +120,11 @@ patternProperties: > description: > Delay, in microseconds, after a read transfer. > > + spi-rx-dtr: > + $ref: /schemas/types.yaml#/definitions/flag > + description: > + Device supports receiving in DTR mode. > + > spi-tx-bus-width: > allOf: > - $ref: /schemas/types.yaml#/definitions/uint32 > @@ -132,6 +137,11 @@ patternProperties: > description: > Delay, in microseconds, after a write transfer. > > + spi-tx-dtr: > + $ref: /schemas/types.yaml#/definitions/flag > + description: > + Device supports transmitting in DTR mode. > + > required: > - compatible > - reg
