diff options
Diffstat (limited to 'arch/arm/boot/dts/da850-lego-ev3.dts')
| -rw-r--r-- | arch/arm/boot/dts/da850-lego-ev3.dts | 59 |
1 files changed, 52 insertions, 7 deletions
diff --git a/arch/arm/boot/dts/da850-lego-ev3.dts b/arch/arm/boot/dts/da850-lego-ev3.dts index 112ec92064ce..512604ad8b71 100644 --- a/arch/arm/boot/dts/da850-lego-ev3.dts +++ b/arch/arm/boot/dts/da850-lego-ev3.dts @@ -123,6 +123,14 @@ pinctrl-0 = <&system_power_pin>; }; + sound { + compatible = "pwm-beeper"; + pinctrl-names = "default"; + pinctrl-0 = <&ehrpwm0b_pins>; + pwms = <&ehrpwm0 1 1000000 0>; + amp-supply = <&>; + }; + /* * This is a 5V current limiting regulator that is shared by USB, * the sensor (input) ports, the motor (output) ports and the A/DC. @@ -139,18 +147,36 @@ enable-active-high; regulator-boot-on; }; + + /* + * This is a simple voltage divider on VCC5V to provide a 2.5V + * reference signal to the ADC. + */ + adc_ref: regulator2 { + compatible = "regulator-fixed"; + regulator-name = "adc ref"; + regulator-min-microvolt = <2500000>; + regulator-max-microvolt = <2500000>; + regulator-boot-on; + vin-supply = <&vcc5v>; + }; + + /* + * This is the amplifier for the speaker. + */ + amp: regulator3 { + pinctrl-names = "default"; + pinctrl-0 = <&_pins>; + compatible = "regulator-fixed"; + regulator-name = "amp"; + gpio = <&gpio 111 GPIO_ACTIVE_HIGH>; + enable-active-high; + }; }; &pmx_core { status = "okay"; - spi0_cs3_pin: pinmux_spi0_cs3_pin { - pinctrl-single,bits = < - /* CS3 */ - 0xc 0x01000000 0x0f000000 - >; - }; - mmc0_cd_pin: pinmux_mmc0_cd { pinctrl-single,bits = < /* GP5[14] */ @@ -195,6 +221,13 @@ 0x4c 0x00008000 0x0000f000 >; }; + + amp_pins: pinmux_amp_pins { + pinctrl-single,bits = < + /* GP6[15] */ + 0x34 0x00000008 0x0000000f + >; + }; }; &pinconf { @@ -293,6 +326,18 @@ }; }; }; + + adc: adc@3 { + compatible = "ti,ads7957"; + reg = <3>; + #io-channel-cells = <1>; + spi-max-frequency = <10000000>; + vref-supply = <&adc_ref>; + }; +}; + +&ehrpwm0 { + status = "okay"; }; &gpio { |