Am Fr., 12. Mai 2023 um 05:30 Uhr schrieb Mark Brown <broonie@xxxxxxxxxx>: > > On Fri, May 12, 2023 at 01:13:14AM +0200, Boerge Struempfel wrote: > > Some spi controller switch the mosi line to high, whenever they are > > idle. This may not be desired in all use cases. For example neopixel > > leds can get confused and flicker due to misinterpreting the idle state. > > Therefore, we introduce a new spi-mode bit, with which the idle behaviour > > can be overwritten on a per device basis. > > > > Signed-off-by: Boerge Struempfel <bstruempfel@xxxxxxxxxxxxxx> > > --- > > .../devicetree/bindings/spi/spi-peripheral-props.yaml | 6 ++++++ > > If this is always required for a given device (which I'd expect to be > the case) why configure it through DT? I know we've got some legacy > stuff like that but not all legacy DT choices were good and no need to > continue the pattern. Yes this will always be the case for specific spi-device, spi-controller combinations. Just to make sure, that I understand your suggestion correctly: You propose to check from the specific spi-device-driver, if the spi-controller supports this particular mode-bit, and then set it if it does and thereby loose the need for the DT entry completely?
