ARM: dts: wheat: add SDHI0 support

Define the Wheat board dependent  part of  the SDHI0 (connected to the
micro-SD slot)  device node along with the necessary voltage regulator.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

1 files changed, 26 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/r8a7792-wheat.dts b/arch/arm/boot/dts/r8a7792-wheat.dts
index 65d13c83d424..ff37de35c57c 100644
--- a/arch/arm/boot/dts/r8a7792-wheat.dts
+++ b/arch/arm/boot/dts/r8a7792-wheat.dts
@@ -11,6 +11,7 @@
 
 /dts-v1/;
 #include "r8a7792.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
         model = "Wheat";
@@ -54,6 +55,17 @@
                 pinctrl-0 = <&lan89218_pins>;
                 pinctrl-names = "default";
         };
+
+        vcc_sdhi0: regulator-vcc-sdhi0 {
+                compatible = "regulator-fixed";
+
+                regulator-name = "SDHI0 Vcc";
+                regulator-min-microvolt = <3300000>;
+                regulator-max-microvolt = <3300000>;
+
+                gpio = <&gpio11 12 GPIO_ACTIVE_HIGH>;
+                enable-active-high;
+        };
 };
 
 &extal_clk {
@@ -86,6 +98,11 @@
                 groups = "can1_data";
                 function = "can1";
         };
+
+        sdhi0_pins: sdhi0 {
+                groups = "sdhi0_data4", "sdhi0_ctrl";
+                function = "sdhi0";
+        };
 };
 
 &scif0 {
@@ -108,3 +125,12 @@
 
         status = "okay";
 };
+
+&sdhi0 {
+        pinctrl-0 = <&sdhi0_pins>;
+        pinctrl-names = "default";
+
+        vmmc-supply = <&vcc_sdhi0>;
+        cd-gpios = <&gpio11 11 GPIO_ACTIVE_LOW>;
+        status = "okay";
+};