Hi Kumar, On Tue, Nov 13, 2018 at 9:05 PM Kumar Gala <kumar.gala@xxxxxxxxxx> wrote: > I noticed this commit from you: > > commit a8830cb19cfea04edb0381b52fd90eec44986eb9 > Author: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> > Date: Mon May 22 15:11:40 2017 +0200 > > spi: Document DT bindings for SPI controllers in slave mode > > Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> > Reviewed-by: Rob Herring <robh@xxxxxxxxxx> > Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> > > Curious if you have an example of what the .dts looks like. I’m trying to figure out what ‘reg’ would look like for the slave controller case? Is there a reg? There's no reg property nor unit address, as there's only a single slave node, see e.g. https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git/commit/?h=topic/renesas-overlays&id=5dbc65e4177d5a8132b962f8db3e18b9d66c426a There's more info on the eLinux wiki: https://elinux.org/Tests:MSIOF-SPI-Slave I also gave a presentation about SPI slave support at FOSDEM: https://archive.fosdem.org/2018/schedule/event/hwenablement_linux_as_spi_slave/ Slide 27 shows an example DTS. If you have more questions, feel free to ask! Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
