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| author | John W. Linville <linville@tuxdriver.com> | 2014-03-21 19:02:04 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-03-21 19:02:04 +0100 |
| commit | 49c0ca17ee8dd3530f688052d4eb2ae6d3e55119 (patch) | |
| tree | 251a4c566723b60505234a18ed864763ad0d0506 /Documentation | |
| parent | Merge branch 'bcmgenet-next' (diff) | |
| parent | brcmfmac: fallback to mimo_bw_cap for older firmwares (diff) | |
| download | linux-49c0ca17ee8dd3530f688052d4eb2ae6d3e55119.tar.xz linux-49c0ca17ee8dd3530f688052d4eb2ae6d3e55119.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/net/nfc/trf7970a.txt | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/nfc/trf7970a.txt b/Documentation/devicetree/bindings/net/nfc/trf7970a.txt new file mode 100644 index 000000000000..8dd3ef7bc56b --- /dev/null +++ b/Documentation/devicetree/bindings/net/nfc/trf7970a.txt @@ -0,0 +1,34 @@ +* Texas Instruments TRF7970A RFID/NFC/15693 Transceiver + +Required properties: +- compatible: Should be "ti,trf7970a". +- spi-max-frequency: Maximum SPI frequency (<= 2000000). +- interrupt-parent: phandle of parent interrupt handler. +- interrupts: A single interrupt specifier. +- ti,enable-gpios: Two GPIO entries used for 'EN' and 'EN2' pins on the + TRF7970A. +- vin-supply: Regulator for supply voltage to VIN pin + +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 TRF7970A on SPI1): + +&spi1 { + status = "okay"; + + nfc@0 { + compatible = "ti,trf7970a"; + reg = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&trf7970a_default>; + spi-max-frequency = <2000000>; + interrupt-parent = <&gpio2>; + interrupts = <14 0>; + ti,enable-gpios = <&gpio2 2 GPIO_ACTIVE_LOW>, + <&gpio2 5 GPIO_ACTIVE_LOW>; + vin-supply = <&ldo3_reg>; + status = "okay"; + }; +}; |