Commit e25889f8 authored by Vignesh Raghavendra's avatar Vignesh Raghavendra Committed by Nishanth Menon
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arm64: dts: ti: k3-j7200-common-proc-board: Add I2C IO expanders 



Add DT nodes for I2C GPIO expanders on main_i2c0 and main_i2c1 and
also add the pinmux corresponding to these I2C instances.

Signed-off-by: default avatarVignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: default avatarNishanth Menon <nm@ti.com>
Reviewed-by: default avatarSekhar Nori <nsekhar@ti.com>
Reviewed-by: default avatarFaiz Abbas <faiz_abbas@ti.com>
Link: https://lore.kernel.org/r/20200923155400.13757-3-vigneshr@ti.com
parent 03bfeb52

arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts

+49 −0
Original line number Diff line number Diff line
@@ -41,6 +41,22 @@ 
	};

};



&main_pmx0 {

	main_i2c0_pins_default: main-i2c0-pins-default {

		pinctrl-single,pins = <

			J721E_IOPAD(0xd4, PIN_INPUT_PULLUP, 0) /* (V3) I2C0_SCL */

			J721E_IOPAD(0xd8, PIN_INPUT_PULLUP, 0) /* (W2) I2C0_SDA */

		>;

	};



	main_i2c1_pins_default: main-i2c1-pins-default {

		pinctrl-single,pins = <

			J721E_IOPAD(0xdc, PIN_INPUT_PULLUP, 3) /* (U3) ECAP0_IN_APWM_OUT.I2C1_SCL */

			J721E_IOPAD(0xe0, PIN_INPUT_PULLUP, 3) /* (T3) EXT_REFCLK1.I2C1_SDA */

		>;

	};

};



&wkup_uart0 {

	/* Wakeup UART is used by System firmware */

	status = "disabled";
@@ -108,3 +124,36 @@ 
	phy-mode = "rgmii-rxid";

	phy-handle = <&phy0>;

};



&main_i2c0 {

	pinctrl-names = "default";

	pinctrl-0 = <&main_i2c0_pins_default>;

	clock-frequency = <400000>;



	exp1: gpio@20 {

		compatible = "ti,tca6416";

		reg = <0x20>;

		gpio-controller;

		#gpio-cells = <2>;

	};



	exp2: gpio@22 {

		compatible = "ti,tca6424";

		reg = <0x22>;

		gpio-controller;

		#gpio-cells = <2>;

	};

};



&main_i2c1 {

	pinctrl-names = "default";

	pinctrl-0 = <&main_i2c1_pins_default>;

	clock-frequency = <400000>;



	exp4: gpio@20 {

		compatible = "ti,tca6408";

		reg = <0x20>;

		gpio-controller;

		#gpio-cells = <2>;

	};

};

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