On Fri, Oct 27, 2023 at 03:34:36PM +0200, Jan Kiszka wrote: > From: Jan Kiszka <jan.kiszka@xxxxxxxxxxx> > > On the Siemens IOT2050 devices, the SPI controller wired to the Arduino > connector is normally driven by userspace. Introduce a binding for use > by spidev. What's spidev? Not a h/w device... > > Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx> > --- > Documentation/devicetree/bindings/trivial-devices.yaml | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml > index 430a814f64a5..01b9f36afcd5 100644 > --- a/Documentation/devicetree/bindings/trivial-devices.yaml > +++ b/Documentation/devicetree/bindings/trivial-devices.yaml > @@ -349,6 +349,8 @@ properties: > - silabs,si3210 > # Relative Humidity and Temperature Sensors > - silabs,si7020 > + # Siemens IOT2050: SPI interface on Arduino connector > + - siemens,iot2050-arduino-spi How is this specific to your board? Presumably, an 'Arduino connector' is a somewhat standard interface, right? If every board with an Arduino connector adds a compatible, this doesn't scale. A connector is what you should be describing, but I imagine it is not just SPI. Here's some past discussions[1][2] on the need for connector bindings. Rob [1] https://lore.kernel.org/all/20220421094421.288672-1-michael@xxxxxxxx/ [2] https://lore.kernel.org/all/CAL_JsqK2DKPbaFvUPSU2E7oh1_pryrRXPMg8OASmK722jmznwA@xxxxxxxxxxxxxx/
