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author | Christophe Ricard <christophe.ricard@gmail.com> | 2014-05-25 22:35:39 +0200 |
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committer | Samuel Ortiz <sameo@linux.intel.com> | 2014-07-23 00:49:36 +0200 |
commit | 955164ebb8f8d337ca5b8540ae1f9d4def7f0ad0 (patch) | |
tree | 7af8382d77d91a577b64489f897dba187101a455 | |
parent | 35630df68d6030daf12dde12ed07bbe26324e6ac (diff) | |
download | op-kernel-dev-955164ebb8f8d337ca5b8540ae1f9d4def7f0ad0.zip op-kernel-dev-955164ebb8f8d337ca5b8540ae1f9d4def7f0ad0.tar.gz |
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>
-rw-r--r-- | Documentation/devicetree/bindings/net/nfc/st21nfcb.txt | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/nfc/st21nfcb.txt b/Documentation/devicetree/bindings/net/nfc/st21nfcb.txt new file mode 100644 index 0000000..3b58ae4 --- /dev/null +++ b/Documentation/devicetree/bindings/net/nfc/st21nfcb.txt @@ -0,0 +1,33 @@ +* 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>; + }; +}; |