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>

1 files changed, 35 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
index 009abd69385d..46b2fed7c319 100644
--- 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