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

Define the Porter 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...

This patch is analogous to the commit 1299df03d719 ("ARM: shmobile:
henninger: add SDHI0/2 DT support") as there  are no differences between
those boards in this respect.

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

diff --git a/arch/arm/boot/dts/r8a7791-porter.dts b/arch/arm/boot/dts/r8a7791-porter.dts
index ca59ff8619230f5743f0c7ddf4c5cebd1dd69070..5bc4d23c1edbe65d5573d0617af79fefa3804335 100644 (file)
--- a/arch/arm/boot/dts/r8a7791-porter.dts
+++ b/arch/arm/boot/dts/r8a7791-porter.dts
@@ -10,6 +10,7 @@
 
 /dts-v1/;
 #include "r8a7791.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
        model = "Porter";
@@ -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 {
@@ -78,3 +133,24 @@
                micrel,led-mode = <1>;
        };
 };
+
+&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";
+};