ARM: shmobile: henninger: add SDHI0/2 DT support

Define the Henninger board dependent part of the SDHI0/2 device nodes along with
the necessary voltage regulators (note that the Vcc regulators are dummy -- they
are required but don't actually exist on the board). Also, GPIOs have to be used
for the CD and WP signals due to the SDHI driver constraints...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 1299df03d7191ab4356c995dde8b912d3c8922e9)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/boot/dts/r8a7791-henninger.dts b/arch/arm/boot/dts/r8a7791-henninger.dts
index 0a65523..2e45c06 100644 (file)
--- a/arch/arm/boot/dts/r8a7791-henninger.dts
+++ b/arch/arm/boot/dts/r8a7791-henninger.dts
@@ -11,6 +11,7 @@
 
 /dts-v1/;
 #include "r8a7791.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
        model = "Henninger";
@@ -33,6 +34,50 @@
                device_type = "memory";
                reg = <2 0x00000000 0 0x40000000>;
        };
+
+       vcc_sdhi0: regulator@0 {
+               compatible = "regulator-fixed";
+
+               regulator-name = "SDHI0 Vcc";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               regulator-always-on;
+       };
+
+       vccq_sdhi0: regulator@1 {
+               compatible = "regulator-gpio";
+
+               regulator-name = "SDHI0 VccQ";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <3300000>;
+
+               gpios = <&gpio2 12 GPIO_ACTIVE_HIGH>;
+               gpios-states = <1>;
+               states = <3300000 1
+                         1800000 0>;
+       };
+
+       vcc_sdhi2: regulator@2 {
+               compatible = "regulator-fixed";
+
+               regulator-name = "SDHI2 Vcc";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               regulator-always-on;
+       };
+
+       vccq_sdhi2: regulator@3 {
+               compatible = "regulator-gpio";
+
+               regulator-name = "SDHI2 VccQ";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <3300000>;
+
+               gpios = <&gpio2 26 GPIO_ACTIVE_HIGH>;
+               gpios-states = <1>;
+               states = <3300000 1
+                         1800000 0>;
+       };
 };
 
 &extal_clk {
@@ -54,6 +99,16 @@
                renesas,groups = "intc_irq0";
                renesas,function = "intc";
        };
+
+       sdhi0_pins: sd0 {
+               renesas,groups = "sdhi0_data4", "sdhi0_ctrl";
+               renesas,function = "sdhi0";
+       };
+
+       sdhi2_pins: sd2 {
+               renesas,groups = "sdhi2_data4", "sdhi2_ctrl";
+               renesas,function = "sdhi2";
+       };
 };
 
 &scif0 {
@@ -82,3 +137,24 @@
 &sata0 {
        status = "okay";
 };
+
+&sdhi0 {
+       pinctrl-0 = <&sdhi0_pins>;
+       pinctrl-names = "default";
+
+       vmmc-supply = <&vcc_sdhi0>;
+       vqmmc-supply = <&vccq_sdhi0>;
+       cd-gpios = <&gpio6 6 GPIO_ACTIVE_LOW>;
+       wp-gpios = <&gpio6 7 GPIO_ACTIVE_HIGH>;
+       status = "okay";
+};
+
+&sdhi2 {
+       pinctrl-0 = <&sdhi2_pins>;
+       pinctrl-names = "default";
+
+       vmmc-supply = <&vcc_sdhi2>;
+       vqmmc-supply = <&vccq_sdhi2>;
+       cd-gpios = <&gpio6 22 GPIO_ACTIVE_LOW>;
+       status = "okay";
+};