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Commit 4d5b2eaf authored by Baruch Siach's avatar Baruch Siach Committed by Eric Anholt
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ARM: dts: bcm2837-rpi-3-b: add GPIO expander 



Add a description of the RPi3 GPIO expander that the VC4 firmware controls.

Acked-by: default avatarStefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: default avatarBaruch Siach <baruch@tkos.co.il>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: default avatarEric Anholt <eric@anholt.net>
Signed-off-by: default avatarEric Anholt <eric@anholt.net>
parent b0c07c5a

arch/arm/boot/dts/bcm2837-rpi-3-b.dts

+17 −0
Original line number Diff line number Diff line
@@ -25,6 +25,23 @@ 
	};

};



&firmware {

	expgpio: gpio {

		compatible = "raspberrypi,firmware-gpio";

		gpio-controller;

		#gpio-cells = <2>;

		gpio-line-names = "BT_ON",

				  "WL_ON",

				  "STATUS_LED",

				  "LAN_RUN",

				  "HPD_N",

				  "CAM_GPIO0",

				  "CAM_GPIO1",

				  "PWR_LOW_N";

		status = "okay";

	};

};



/* uart0 communicates with the BT module */

&uart0 {

	pinctrl-names = "default";