* Felipe Balbi <balbi@xxxxxx> [141226 12:56]: > AM437x IDK board has a User Switch which we can > program to whatever we want. Because this board > doesn't have a PMIC which can give us power button > presses, let's use this user switch as a gpio-keys > power button. > > Signed-off-by: Felipe Balbi <balbi@xxxxxx> Applying into omap-for-v3.20/dt thanks. Tony > --- > > Changes since v1: > - Add explicit pinctrl data. > (note that ball reset state is already MUX_MODE7, and even > though it was already working before, as can be seen from > v1's boot logs, it's best that we cope with possibly broken > bootloaders) > > depends on [1]. Boot logs at [2]. Note that this can rather easily > be folded into the original patch if so desired. > > [1] http://marc.info/?l=linux-omap&m=141928747902983&w=2 > [2] http://hastebin.com/qezicehunu > > arch/arm/boot/dts/am437x-idk-evm.dts | 24 ++++++++++++++++++++++++ > 1 file changed, 24 insertions(+) > > diff --git a/arch/arm/boot/dts/am437x-idk-evm.dts b/arch/arm/boot/dts/am437x-idk-evm.dts > index b52dd0a..f9a17e2 100644 > --- a/arch/arm/boot/dts/am437x-idk-evm.dts > +++ b/arch/arm/boot/dts/am437x-idk-evm.dts > @@ -96,9 +96,29 @@ > regulator-boot-on; > vin-supply = <&v1_5dreg>; > }; > + > + gpio_keys: gpio_keys { > + compatible = "gpio-keys"; > + pinctrl-names = "default"; > + pinctrl-0 = <&gpio_keys_pins_default>; > + #address-cells = <1>; > + #size-cells = <0>; > + > + switch@0 { > + label = "power-button"; > + linux,code = <KEY_POWER>; > + gpios = <&gpio4 2 GPIO_ACTIVE_LOW>; > + }; > + }; > }; > > &am43xx_pinmux { > + gpio_keys_pins_default: gpio_keys_pins_default { > + pinctrl-single,pins = < > + 0x1b8 (PIN_INPUT | MUX_MODE7) /* cam0_field.gpio4_2 */ > + >; > + }; > + > i2c0_pins_default: i2c0_pins_default { > pinctrl-single,pins = < > 0x188 (PIN_INPUT | SLEWCTRL_FAST | MUX_MODE0) /* i2c0_sda.i2c0_sda */ > @@ -282,6 +302,10 @@ > status = "okay"; > }; > > +&gpio4 { > + status = "okay"; > +}; > + > &gpio5 { > status = "okay"; > }; > -- > 2.2.0 > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
