From f3710d4eea6abf77ffb130bfefb95199f4bf0cab Mon Sep 17 00:00:00 2001 From: Anson Huang Date: Sun, 6 May 2018 14:28:09 +0800 Subject: [PATCH] ARM: dts: imx6sx-sabreauto: add IO expander max7310 support i.MX6SX Sabre Auto board has two max7310 IO expander on I2C3 bus, add support for them. Signed-off-by: Anson Huang Reviewed-by: Fabio Estevam Signed-off-by: Shawn Guo --- 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 ae253af53624..4d41b4d114bd 100644 --- a/arch/arm/boot/dts/imx6sx-sabreauto.dts +++ b/arch/arm/boot/dts/imx6sx-sabreauto.dts @@ -73,6 +73,13 @@ MX6SX_PAD_GPIO1_IO02__I2C2_SCL 0x4001b8b1 >; }; + pinctrl_i2c3: i2c3grp { + 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 @@ -262,3 +269,24 @@ max7322: gpio@68 { #gpio-cells = <2>; }; }; + +&i2c3 { + clock-frequency = <100000>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c3>; + 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>; + }; +}; -- 2.45.2