[PATCH 1/3] ARM: imx6qdl-sabreauto.dtsi: add max7310 support

Peter Chen
2015-03-09T09:28:06Z

max7310 is an i2c interface gpio expander

Signed-off-by: Peter Chen <peter.chen@freescale.com>
---
arch/arm/boot/dts/imx6qdl-sabreauto.dtsi | 43 ++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)

diff --git a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
index 009abd6..51acfec 100644
--- a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
@@ -28,6 +28,13 @@
};
};

+ max7310_reset: max7310-reset {
+ compatible = "gpio-reset";
+ reset-gpios = <&gpio1 15 GPIO_ACTIVE_LOW>;
+ reset-delay-us = <1>;
+ #reset-cells = <0>;
+ };
+
sound-spdif {
compatible = "fsl,imx-audio-spdif",
"fsl,imx-sabreauto-spdif";
@@ -182,6 +189,35 @@
};
};

+&i2c3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c3>;
+ pinctrl-assert-gpios = <&gpio5 4 GPIO_ACTIVE_HIGH>;
+ status = "okay";
+
+ max7310_a: gpio at 30 {
+ compatible = "maxim,max7310";
+ reg = <0x30>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ resets = <&max7310_reset>;
+ };
+
+ max7310_b: gpio at 32 {
+ compatible = "maxim,max7310";
+ reg = <0x32>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ max7310_c: gpio at 34 {
+ compatible = "maxim,max7310";
+ reg = <0x34>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+};
+
&iomuxc {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_hog>;
@@ -265,6 +301,13 @@
>;
};

+ 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
--
1.9.1