linux-kernel - [PATCH] Device tree binding for Avago APDS990X light sensor

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Date:   Wed, 27 Dec 2017 10:18:28 +0100
From:   Pavel Machek <pavel@....cz>
To:     robh+dt@...nel.org, mark.rutland@....com,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        pali.rohar@...il.com, sre@...nel.org,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-omap@...r.kernel.org, tony@...mide.com, khilman@...nel.org,
        aaro.koskinen@....fi, ivo.g.dimitrov.75@...il.com,
        patrikbachan@...il.com, serge@...lyn.com, abcloriens@...il.com,
        clayton@...ftyguy.net, martijn@...xit.nl,
        sakari.ailus@...ux.intel.com,
        Filip Matijević <filip.matijevic.pz@...il.com>
Subject: [PATCH] Device tree binding for Avago APDS990X light sensor

From: Filip Matijević <filip.matijevic.pz@...il.com>

This prepares binding for light sensor used in Nokia N9. 

Signed-off-by: Filip Matijević <filip.matijevic.pz@...il.com>
Signed-off-by: Pavel machek <pavel@....cz>

---

Patches to convert APDS990X driver to device tree and to switch to iio
are available.

diff --git a/Documentation/devicetree/bindings/misc/avago-apds990x.txt b/Documentation/devicetree/bindings/misc/avago-apds990x.txt
new file mode 100644
index 0000000..e038146
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/avago-apds990x.txt
@@ -0,0 +1,39 @@
+Avago APDS990X driver
+
+Required properties:
+- compatible: "avago,apds990x"
+- reg: address on the I2C bus
+- interrupts: external interrupt line number
+- Vdd-supply: power supply for VDD
+- Vled-supply: power supply for LEDA
+- ga: Glass attenuation
+- cf1: Clear channel factor 1
+- irf1: IR channel factor 1
+- cf2: Clear channel factor 2
+- irf2: IR channel factor 2
+- df: Device factor
+- pdrive: IR current, one of APDS_IRLED_CURR_XXXmA values
+- ppcount: Proximity pulse count
+
+Example (Nokia N9):
+
+	als_ps@39 {
+		compatible = "avago,apds990x";
+		reg = <0x39>;
+
+		interrupt-parent = <&gpio3>;
+		interrupts = <19 10>; /* gpio_83, IRQF_TRIGGER_FALLING | IRQF_TRIGGER_LOW */
+
+		Vdd-supply = <&vaux1>;
+		Vled-supply = <&vbat>;
+
+		ga	= <168834>;
+		cf1	= <4096>;
+		irf1	= <7824>;
+		cf2	= <877>;
+		irf2	= <1575>;
+		df	= <52>;
+
+		pdrive	= <0x2>; /* APDS_IRLED_CURR_25mA */
+		ppcount	= <5>;
+	};

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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