linux-kernel - [PATCH] nfc: pn533: Add device tree documentation for i2c phy

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Message-Id: <1460385362-21986-1-git-send-email-michael.thalmeier@hale.at>
Date:	Mon, 11 Apr 2016 16:36:02 +0200
From:	Michael Thalmeier <michael.thalmeier@...e.at>
To:	Samuel Ortiz <sameo@...ux.intel.com>
Cc:	Lauro Ramos Venancio <lauro.venancio@...nbossa.org>,
	Aloisio Almeida Jr <aloisio.almeida@...nbossa.org>,
	linux-kernel@...r.kernel.org, linux-nfc@...ts.01.org,
	michael@...lmeier.at
Subject: [PATCH] nfc: pn533: Add device tree documentation for i2c phy

Add pn533-i2c phy devicetree documentation

Signed-off-by: Michael Thalmeier <michael.thalmeier@...e.at>
---
 .../devicetree/bindings/net/nfc/pn533-i2c.txt      | 31 ++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/nfc/pn533-i2c.txt

diff --git a/Documentation/devicetree/bindings/net/nfc/pn533-i2c.txt b/Documentation/devicetree/bindings/net/nfc/pn533-i2c.txt
new file mode 100644
index 0000000..1aea822
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/nfc/pn533-i2c.txt
@@ -0,0 +1,31 @@
+* NXP Semiconductors PN532 NFC Controller
+
+Required properties:
+- compatible: Should be "nxp,pn532-i2c" or "nxp,pn533-i2c".
+- clock-frequency: I²C work frequency.
+- reg: address on the bus
+- interrupt-parent: phandle for the interrupt gpio controller
+- interrupts: GPIO interrupt to which the chip is connected
+
+Optional SoC Specific Properties:
+- pinctrl-names: Contains only one value - "default".
+- pintctrl-0: Specifies the pin control groups used for this controller.
+
+Example (for ARM-based BeagleBone with PN532 on I2C2):
+
+&i2c2 {
+
+	status = "okay";
+
+	pn532: pn532@24 {
+
+		compatible = "nxp,pn532-i2c";
+
+		reg = <0x24>;
+		clock-frequency = <400000>;
+
+		interrupt-parent = <&gpio1>;
+		interrupts = <17 IRQ_TYPE_EDGE_FALLING>;
+
+	};
+};
-- 
2.5.5