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ARM: dts: omap4-droid4: Add GPIO poweroff

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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: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tony Lindgren 2017-03-05 20:11:58 -08:00
parent 771e4feb27
commit 9946f937d4
1 changed files with 16 additions and 0 deletions
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16
arch/arm/boot/dts/omap4-droid4-xt894.dts
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@ -27,6 +27,14 @@
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.. */
wl12xx_vmmc: regulator-wl12xx {
compatible = "regulator-fixed";
@ -226,6 +234,14 @@
};
&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 {
/* gpio_60 */
pinctrl-single,pins = <