linux-kernel - [PATCH v3 3/5] input: Add support for the tm2 touchkey device driver

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Message-id: <1483675149-32598-4-git-send-email-jcsing.lee@samsung.com>
Date:   Fri, 06 Jan 2017 12:59:07 +0900
From:   Jaechul Lee <jcsing.lee@...sung.com>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Javier Martinez Canillas <javier@....samsung.com>
Cc:     Jaechul Lee <jcsing.lee@...sung.com>,
        Andi Shyti <andi.shyti@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>, beomho.seo@...sung.com,
        galaxyra@...il.com, linux-arm-kernel@...ts.infradead.org,
        linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org
Subject: [PATCH v3 3/5] input: Add support for the tm2 touchkey device driver

This patch adds the binding description of the tm2 touchkey
device driver.

Signed-off-by: Jaechul Lee <jcsing.lee@...sung.com>
Reviewed-by: Javier Martinez Canillas <javier@....samsung.com>
Reviewed-by: Andi Shyti <andi.shyti@...sung.com>
Acked-by: Rob Herring <robh@...nel.org>
---
 .../bindings/input/samsung,tm2-touchkey.txt        | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/samsung,tm2-touchkey.txt

diff --git a/Documentation/devicetree/bindings/input/samsung,tm2-touchkey.txt b/Documentation/devicetree/bindings/input/samsung,tm2-touchkey.txt
new file mode 100644
index 0000000..4de1af0
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/samsung,tm2-touchkey.txt
@@ -0,0 +1,27 @@
+Samsung tm2-touchkey
+
+Required properties:
+- compatible: must be "samsung,tm2-touchkey"
+- reg: I2C address of the chip.
+- interrupt-parent: a phandle for the interrupt controller (see interrupt
+	binding[0]).
+- interrupts: interrupt to which the chip is connected (see interrupt
+	binding[0]).
+- vcc-supply : internal regulator output. 1.8V
+- vdd-supply : power supply for IC 3.3V
+
+[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+
+Example:
+	&i2c0 {
+		/* ... */
+
+		touchkey@20 {
+			compatible = "samsung,tm2-touchkey";
+			reg = <0x20>;
+			interrupt-parent = <&gpa3>;
+			interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
+			vcc-supply=<&ldo32_reg>;
+			vdd-supply=<&ldo33_reg>;
+		};
+	};
-- 
2.7.4