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Sat, 13 Jun 2020 18:45:10 +0000 From: Jonathan Bakker To: kgene@kernel.org, krzk@kernel.org, robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 3/5] ARM: dts: s5pv210: Add support for GP2A light sensor on Aries Date: Sat, 13 Jun 2020 11:44:25 -0700 Message-ID: X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200613184427.23394-1-xc-racer2@live.ca> References: <20200613184427.23394-1-xc-racer2@live.ca> X-ClientProxiedBy: MWHPR07CA0022.namprd07.prod.outlook.com (2603:10b6:300:116::32) To BN6PR04MB0660.namprd04.prod.outlook.com (2603:10b6:404:d9::21) X-Microsoft-Original-Message-ID: <20200613184427.23394-4-xc-racer2@live.ca> MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from jon-hp-6570b.telus (2001:569:fb68:9c00:8067:f823:1e15:7520) by MWHPR07CA0022.namprd07.prod.outlook.com (2603:10b6:300:116::32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3088.18 via Frontend Transport; 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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 --- arch/arm/boot/dts/s5pv210-aries.dtsi | 50 ++++++++++++++++++++++++++-- 1 file 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 = ; }; + gp2a_irq: gp2a-irq { + samsung,pins = "gph0-2"; + samsung,pin-function = ; + samsung,pin-pud = ; + samsung,pin-drv = ; + }; + pmic_dvs_pins: pmic-dvs-pins { samsung,pins = "gph0-3", "gph0-4", "gph0-5"; samsung,pin-function = ; @@ -686,6 +725,13 @@ samsung,pin-drv = ; }; + gp2a_power: gp2a-power { + samsung,pins = "gpj1-4"; + samsung,pin-function = ; + samsung,pin-pud = ; + samsung,pin-drv = ; + }; + touchkey_i2c_pins: touchkey-i2c-pins { samsung,pins = "gpj3-0", "gpj3-1"; samsung,pin-pud = ;