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Commit 2d47fc3b authored by Dmitry Lifshitz's avatar Dmitry Lifshitz Committed by Tony Lindgren
Browse files

ARM: dts: am57xx: cl-som-am57x: add touchscreen support 



Add ADS7846 touchscreen support.

Signed-off-by: default avatarDmitry Lifshitz <lifshitz@compulab.co.il>
Acked-by: default avatarIgor Grinberg <grinberg@compulab.co.il>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 27ddd846

arch/arm/boot/dts/am57xx-cl-som-am57x.dts

+44 −0
Original line number Diff line number Diff line
@@ -43,6 +43,13 @@ 
		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

	};



	ads7846reg: fixedregulator-ads7846-reg {

		compatible = "regulator-fixed";

		regulator-name = "ads7846-reg";

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

	};

};



&dra7_pmx_core {
@@ -183,6 +190,12 @@ 
			DRA7XX_CORE_IOPAD(0x3594, PIN_INPUT | MUX_MODE15)

		>;

	};



	ads7846_pins: pinmux_ads7846_pins {

		pinctrl-single,pins = <

			DRA7XX_CORE_IOPAD(0x3464, PIN_INPUT_PULLDOWN | MUX_MODE14) /* gpmc_a9.gpio1_31 */

		>;

	};

};



&i2c1 {
@@ -451,6 +464,37 @@ 
			reg = <0x100000 0x0>;

		};

	};



	/* touch controller */

	ads7846@0 {

		pinctrl-names = "default";

		pinctrl-0 = <&ads7846_pins>;



		compatible = "ti,ads7846";

		vcc-supply = <&ads7846reg>;



		reg = <1>;                              /* CS1 */

		spi-max-frequency = <1500000>;



		interrupt-parent = <&gpio1>;

		interrupts = <31 0>;

		pendown-gpio = <&gpio1 31 0>;





		ti,x-min = /bits/ 16 <0x0>;

		ti,x-max = /bits/ 16 <0x0fff>;

		ti,y-min = /bits/ 16 <0x0>;

		ti,y-max = /bits/ 16 <0x0fff>;



		ti,x-plate-ohms = /bits/ 16 <180>;

		ti,pressure-max = /bits/ 16 <255>;



		ti,debounce-max = /bits/ 16 <30>;

		ti,debounce-tol = /bits/ 16 <10>;

		ti,debounce-rep = /bits/ 16 <1>;



		linux,wakeup;

	};

};



&mac {