diff options
| author | Tony Lindgren <tony@atomide.com> | 2017-03-05 20:11:58 -0800 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2017-03-22 09:06:37 -0700 |
| commit | 9946f937d482abeb697dde44a58a8d821f45df0c (patch) | |
| tree | a44840bf1db5c17560a8f1c00e23d2f62cdceb24 /arch/arm/boot/dts/omap4-droid4-xt894.dts | |
| parent | 771e4feb273a98aeccd3e0c3edd05ecde513d280 (diff) | |
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: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot/dts/omap4-droid4-xt894.dts')
| -rw-r--r-- | arch/arm/boot/dts/omap4-droid4-xt894.dts | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/omap4-droid4-xt894.dts b/arch/arm/boot/dts/omap4-droid4-xt894.dts index ed07f39d61a2..1830f747354f 100644 --- a/arch/arm/boot/dts/omap4-droid4-xt894.dts +++ b/arch/arm/boot/dts/omap4-droid4-xt894.dts @@ -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 = < |