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Commit 6c6b3c33 authored by Vignesh R's avatar Vignesh R Committed by Tony Lindgren
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ARM: dts: am335x-icev2: Add nodes for gpio-decoder 



AM335x ICE board has a rotary-switch connected to PCA9536 I2C GPIO
expander. The position of the rotary-switch is reflected by status of
GPIO lines. Add gpio-decoder node to read these GPIO line status via
gpio-decoder driver and report it as an input event to the system.

Signed-off-by: default avatarVignesh R <vigneshr@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 547868f5

arch/arm/boot/dts/am335x-icev2.dts

+9 −0
Original line number Diff line number Diff line
@@ -139,6 +139,15 @@ 
			default-state = "off";

		};

	};

	gpio-decoder {

		compatible = "gpio-decoder";

		gpios = <&pca9536 3 GPIO_ACTIVE_HIGH>,

			<&pca9536 2 GPIO_ACTIVE_HIGH>,

			<&pca9536 1 GPIO_ACTIVE_HIGH>,

			<&pca9536 0 GPIO_ACTIVE_HIGH>;

		linux,axis = <0>; /* ABS_X */

		decoder-max-value = <9>;

	};

};



&am33xx_pinmux {