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Commit 9946f937 authored by Tony Lindgren's avatar Tony Lindgren
Browse files

ARM: dts: omap4-droid4: Add GPIO poweroff 



Droid 4 has a GPIO line that we can use with CONFIG_POWER_RESET_GPIO.
It is probably connected to the CPCAP PMIC, and seems to power down
the whole device taking power consumption to zero based on what
I measured.

Cc: devicetree@vger.kernel.org
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Tested-By: default avatarSebastian Reichel <sre@kernel.org>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 771e4feb

arch/arm/boot/dts/omap4-droid4-xt894.dts

+16 −0
Original line number Original line Diff line number Diff line
@@ -27,6 +27,14 @@ 
		reg = <0x80000000 0x3fd00000>;	/* 1021 MB */

		reg = <0x80000000 0x3fd00000>;	/* 1021 MB */

	};

	};





	/* Poweroff GPIO probably connected to CPCAP */

	gpio-poweroff {

		compatible = "gpio-poweroff";

		pinctrl-0 = <&poweroff_gpio>;

		pinctrl-names = "default";

		gpios = <&gpio2 18 GPIO_ACTIVE_LOW>;	/* gpio50 */

	};



	/* This is probably coming straight from the battery.. */

	/* This is probably coming straight from the battery.. */

	wl12xx_vmmc: regulator-wl12xx {

	wl12xx_vmmc: regulator-wl12xx {

		compatible = "regulator-fixed";

		compatible = "regulator-fixed";
@@ -226,6 +234,14 @@ 
};

};





&omap4_pmx_core {

&omap4_pmx_core {



	/* gpmc_ncs0.gpio_50 */

	poweroff_gpio: pinmux_poweroff_pins {

		pinctrl-single,pins = <

		OMAP4_IOPAD(0x074, PIN_OUTPUT_PULLUP | MUX_MODE3)

		>;

	};



	usb_gpio_mux_sel1: pinmux_usb_gpio_mux_sel1_pins {

	usb_gpio_mux_sel1: pinmux_usb_gpio_mux_sel1_pins {

		/* gpio_60 */

		/* gpio_60 */

		pinctrl-single,pins = <

		pinctrl-single,pins = <