[PATCH V4 3/6] ARM: dts: imx6sx-sabreauto: add IO expander max7310 support

[Anson Huang]

i.MX6SX Sabre Auto board has two max7310 IO expander
on I2C3 bus, add support for them.

Signed-off-by: Anson Huang <anson.hu...@nxp.com>
---
no changes.
 arch/arm/boot/dts/imx6sx-sabreauto.dts | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/arch/arm/boot/dts/imx6sx-sabreauto.dts 
b/arch/arm/boot/dts/imx6sx-sabreauto.dts
index d59084f..812f40b 100644
--- a/arch/arm/boot/dts/imx6sx-sabreauto.dts
+++ b/arch/arm/boot/dts/imx6sx-sabreauto.dts
@@ -82,6 +82,13 @@
                        >;
                };
 
+               pinctrl_i2c3_2: i2c3grp-2 {
+                       fsl,pins = <
+                               MX6SX_PAD_KEY_ROW4__I2C3_SDA            
0x4001b8b1
+                               MX6SX_PAD_KEY_COL4__I2C3_SCL            
0x4001b8b1
+                       >;
+               };
+
                pinctrl_uart1: uart1grp {
                        fsl,pins = <
                                MX6SX_PAD_GPIO1_IO04__UART1_TX          0x1b0b1
@@ -272,3 +279,24 @@
                };
        };
 };
+
+&i2c3 {
+       clock-frequency = <100000>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_i2c3_2>;
+       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>;
+       };
+};
-- 
2.7.4