On 19/05/2019 23:25, Pavel Machek wrote: > Hi! > >> From: Christian Mauderer <oss@xxxxxxxxxxxxx> >> >> This patch adds the binding documentation for a simple SPI based LED >> controller which use only one byte for setting the brightness. >> >> Signed-off-by: Christian Mauderer <oss@xxxxxxxxxxxxx> >> --- > >> diff --git a/Documentation/devicetree/bindings/leds/leds-spi-byte.txt b/Documentation/devicetree/bindings/leds/leds-spi-byte.txt >> new file mode 100644 >> index 000000000000..28b6b2d9091e >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/leds/leds-spi-byte.txt >> @@ -0,0 +1,44 @@ >> +* Single Byte SPI LED Device Driver. > >> +The driver can be used for controllers with a very simple SPI protocol: >> +- one LED is controlled by a single byte on MOSI >> +- the value of the byte gives the brightness between two values (lowest to >> + highest) >> +- no return value is necessary (no MISO signal) > > I'd expect this file to be named acb-spi-led.txt, or something, and > talk about that u-controller, not its device driver -- as devicetree > binding describes hardware, not driver. > > But you already have an ack from rob, so... > Pavel > So basically it would have been better to move the description that I added to the c-file as "supported devices" in the device tree file? With both commits already acked: Rob and Pavel: Should I change that? If you both say yes, I would rename the file in the binding like suggested and move the detailed protocol description from the driver to the binding. Best regards Christian