diff options
| author | Jonathan Bakker <xc-racer2@live.ca> | 2020-06-13 21:44:25 +0300 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzk@kernel.org> | 2020-06-15 10:00:40 +0300 |
| commit | 7c558af511d01ef0ab0fe1692517f80d27e17cc3 (patch) | |
| tree | 2e6a181970dddaa9e67da754fba9119af6c93f8c /arch/arm/boot/dts/s5pv210-aries.dtsi | |
| parent | 99bb20321f0e4886c8f7c12f3406828b24f00d9c (diff) | |
| download | linux-7c558af511d01ef0ab0fe1692517f80d27e17cc3.tar.xz | |
ARM: dts: s5pv210: Add support for GP2A light sensor on Aries
Aries boards have a GP2A light/proximity sensor attached over i2c-gpio.
As the chip outputs a current and the board has no current ADC, a
current shunt resistor and a voltage ADC are used.
Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Diffstat (limited to 'arch/arm/boot/dts/s5pv210-aries.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/s5pv210-aries.dtsi | 50 |
1 files changed, 48 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/s5pv210-aries.dtsi b/arch/arm/boot/dts/s5pv210-aries.dtsi index d3aeafc0f650..b27d7c2e6dca 100644 --- a/arch/arm/boot/dts/s5pv210-aries.dtsi +++ b/arch/arm/boot/dts/s5pv210-aries.dtsi @@ -69,6 +69,18 @@ pinctrl-0 = <&touchkey_vdd_ena>; }; + gp2a_vled: regulator-fixed-2 { + compatible = "regulator-fixed"; + regulator-name = "VLED"; + enable-active-high; + gpio = <&gpj1 4 GPIO_ACTIVE_HIGH>; + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; + + pinctrl-names = "default"; + pinctrl-0 = <&gp2a_power>; + }; + wifi_pwrseq: wifi-pwrseq { compatible = "mmc-pwrseq-simple"; reset-gpios = <&gpg1 2 GPIO_ACTIVE_LOW>; @@ -468,9 +480,21 @@ pinctrl-names = "default"; pinctrl-0 = <&prox_i2c_pins>; - status = "disabled"; + light-sensor@44 { + compatible = "sharp,gp2ap002a00f"; + reg = <0x44>; + interrupt-parent = <&gph0>; + interrupts = <2 IRQ_TYPE_EDGE_FALLING>; + vdd-supply = <&gp2a_vled>; + vio-supply = <&gp2a_vled>; + io-channels = <&gp2a_shunt>; + io-channel-names = "alsout"; + sharp,proximity-far-hysteresis = /bits/ 8 <0x40>; + sharp,proximity-close-hysteresis = /bits/ 8 <0x20>; - /* Sharp gp2a prox/light sensor, incomplete mainline binding */ + pinctrl-names = "default"; + pinctrl-0 = <&gp2a_irq>; + }; }; i2c_magnetometer: i2c-gpio-7 { @@ -543,6 +567,14 @@ vdd-supply = <&ldo4_reg>; status = "okay"; + + gp2a_shunt: current-sense-shunt { + compatible = "current-sense-shunt"; + io-channels = <&adc 9>; + shunt-resistor-micro-ohms = <47000000>; /* 47 ohms */ + #io-channel-cells = <0>; + io-channel-ranges; + }; }; &fimd { @@ -618,6 +650,13 @@ samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>; }; + gp2a_irq: gp2a-irq { + samsung,pins = "gph0-2"; + samsung,pin-function = <EXYNOS_PIN_FUNC_F>; + samsung,pin-pud = <S3C64XX_PIN_PULL_DOWN>; + samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>; + }; + pmic_dvs_pins: pmic-dvs-pins { samsung,pins = "gph0-3", "gph0-4", "gph0-5"; samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>; @@ -686,6 +725,13 @@ samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>; }; + gp2a_power: gp2a-power { + samsung,pins = "gpj1-4"; + samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>; + samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>; + samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>; + }; + touchkey_i2c_pins: touchkey-i2c-pins { samsung,pins = "gpj3-0", "gpj3-1"; samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>; |