[PATCH v4 07/15] ARM: shmobile: genmai reference dts: Add RSPI nodes

[Geert Uytterhoeven]

From: Geert Uytterhoeven <geert+rene...@linux-m68k.org>

Add pinctrl and SPI devices 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+rene...@linux-m68k.org>
Cc: devicet...@vger.kernel.org
---
v4:
  - No changes
v3:
  - No changes
v2:
  - Use generic "codec" instead of specific "wm8978" node name.

 arch/arm/boot/dts/r7s72100-genmai-reference.dts |   18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/r7s72100-genmai-reference.dts 
b/arch/arm/boot/dts/r7s72100-genmai-reference.dts
index 367af5c133e0..c2cc4bd5a470 100644
--- a/arch/arm/boot/dts/r7s72100-genmai-reference.dts
+++ b/arch/arm/boot/dts/r7s72100-genmai-reference.dts
@@ -43,7 +43,7 @@
 };
 
 &pfc {
-       pinctrl-0 = <&scif2_pins &ethernet_pins>;
+       pinctrl-0 = <&scif2_pins &ethernet_pins &rspi4_pins>;
        pinctrl-names = "default";
 
        scif2_pins: serial2 {
@@ -73,6 +73,12 @@
                                 "ethernet_int_p1_15";
                renesas,function = "ethernet";
        };
+
+       rspi4_pins: spi4 {
+               renesas,groups = "rspi4_rspck_p4_0", "rspi4_ssl0_p4_1",
+                                "rspi4_mosi_p4_2", "rspi4_miso_p4_3";
+               renesas,function = "rspi4";
+       };
 };
 
 &i2c2 {
@@ -85,3 +91,13 @@
                pagesize = <64>;
        };
 };
+
+&spi4 {
+       status = "okay";
+
+       codec: codec@0 {
+               compatible = "wlf,wm8978";
+               reg = <0>;
+               spi-max-frequency = <5000000>;
+       };
+};
-- 
1.7.9.5

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