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authorChristophe Ricard <christophe.ricard@gmail.com>2014-05-25 20:35:39 (GMT)
committerSamuel Ortiz <sameo@linux.intel.com>2014-07-22 22:49:36 (GMT)
commit955164ebb8f8d337ca5b8540ae1f9d4def7f0ad0 (patch)
tree7af8382d77d91a577b64489f897dba187101a455 /Documentation/devicetree/bindings/net
parent35630df68d6030daf12dde12ed07bbe26324e6ac (diff)
NFC: dts: st21nfcb_i2c: Add DTS Documentation
Describe the properties used by the st21nfcb NFC controller driver. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'Documentation/devicetree/bindings/net')
-rw-r--r--Documentation/devicetree/bindings/net/nfc/st21nfcb.txt33
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diff --git a/Documentation/devicetree/bindings/net/nfc/st21nfcb.txt b/Documentation/devicetree/bindings/net/nfc/st21nfcb.txt
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+* STMicroelectronics SAS. ST21NFCB NFC Controller
+
+Required properties:
+- compatible: Should be "st,st21nfcb_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
+- reset-gpios: Output GPIO pin used to reset the ST21NFCB
+
+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 BeagleBoard xM with ST21NFCB on I2C2):
+
+&i2c2 {
+
+ status = "okay";
+
+ st21nfcb: st21nfcb@8 {
+
+ compatible = "st,st21nfcb_i2c";
+
+ reg = <0x08>;
+ clock-frequency = <400000>;
+
+ interrupt-parent = <&gpio5>;
+ interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
+
+ reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
+ };
+};

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