On Wed, 27 Sep 2023 17:25:07 +0100, Fabrizio Castro wrote: > The CSI IP found inside the Renesas RZ/V2M SoC can also work > in SPI target mode. > When working in target mode, the IP will make use of the SS > (Slave Selection) pin, with "low" as default active level. > The active level of SS can be changed to "high" upon setting > property "spi-cs-high" to true. > By default, the SS will be used in target mode, unless property > "renesas,csi-no-ss" is set to true, in which case data will be > shifted in and out purely based on clock activity, and the > logic level of the SS pin will be completely ignored. > > Signed-off-by: Fabrizio Castro <fabrizio.castro.jz@xxxxxxxxxxx> > --- > v1->v2: I have dropped properties renesas,csi-ss and > renesas,csi-ss-high. I have added property > renesas,csi-no-ss, and to configure SS as active > high one now needs to use property spi-cs-high. > I have also reworded the changelog to use a more > modern terminology (host and target as opposed to > master and slave). > > .../devicetree/bindings/spi/renesas,rzv2m-csi.yaml | 9 +++++++++ > 1 file changed, 9 insertions(+) > Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
