ARM: shmobile: genmai reference dts: Add RSPI node

Add SPI device for RSPI on Genmai.

On this board, only rspi4 is in use. Its bus contains a single device
(a wm8978 audio codec), for which no bindings are defined yet.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit ae6b61840bfa36d4f1d89703a312ce29a52c3a76)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/boot/dts/r7s72100-genmai.dts b/arch/arm/boot/dts/r7s72100-genmai.dts
index 56849b5..2070546 100644 (file)
--- a/arch/arm/boot/dts/r7s72100-genmai.dts
+++ b/arch/arm/boot/dts/r7s72100-genmai.dts
@@ -57,3 +57,13 @@
 &scif2 {
        status = "okay";
 };
+
+&spi4 {
+       status = "okay";
+
+       codec: codec@0 {
+               compatible = "wlf,wm8978";
+               reg = <0>;
+               spi-max-frequency = <5000000>;
+       };
+};