ARM: imx6qdl-sabreauto.dtsi: add max7310 support

max7310 is an i2c interface gpio expander

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

diff --git a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
index 009abd69385d854c15c4b35bc98aca87a1ef8d84..46b2fed7c319c891dde01d415521b7207702b45b 100644 (file)
--- a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
@@ -182,6 +182,34 @@
        };
 };
 
+&i2c3 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_i2c3>;
+       pinctrl-assert-gpios = <&gpio5 4 GPIO_ACTIVE_HIGH>;
+       status = "okay";
+
+       max7310_a: gpio@30 {
+               compatible = "maxim,max7310";
+               reg = <0x30>;
+               gpio-controller;
+               #gpio-cells = <2>;
+       };
+
+       max7310_b: gpio@32 {
+               compatible = "maxim,max7310";
+               reg = <0x32>;
+               gpio-controller;
+               #gpio-cells = <2>;
+       };
+
+       max7310_c: gpio@34 {
+               compatible = "maxim,max7310";
+               reg = <0x34>;
+               gpio-controller;
+               #gpio-cells = <2>;
+       };
+};
+
 &iomuxc {
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_hog>;
@@ -265,6 +293,13 @@
                        >;
                };
 
+               pinctrl_i2c3: i2c3grp {
+                       fsl,pins = <
+                               MX6QDL_PAD_GPIO_3__I2C3_SCL  0x4001b8b1
+                               MX6QDL_PAD_EIM_D18__I2C3_SDA 0x4001b8b1
+                       >;
+               };
+
                pinctrl_pwm3: pwm1grp {
                        fsl,pins = <
                                MX6QDL_PAD_SD4_DAT1__PWM3_OUT           0x1b0b1