Geert, 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? - k