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| author |   John W. Linville <linville@tuxdriver.com> | 2014-03-17 13:16:50 -0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-03-17 13:16:50 -0400 |
| commit | 20d83f2464c0d1e27b24d654aa5495dcc44759c0 (patch) | |
| tree | a6c36d9e48920f6d81b7dac9ad6b1f99dfdaf592 /Documentation | |
| parent | ath9k_htc: move DEFAULT_SWBA_RESPONSE check to ath9k_htc_beacon_init (diff) | |
| parent | NFC: llcp: Use list_for_each_entry in nfc_llcp_find_local() (diff) | |
| download | linux-dev-20d83f2464c0d1e27b24d654aa5495dcc44759c0.tar.xz linux-dev-20d83f2464c0d1e27b24d654aa5495dcc44759c0.zip | |
Merge tag 'nfc-next-3.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-next
Samuel Ortiz <sameo@linux.intel.com> says:
"NFC: 3.15: First pull request
This is the NFC pull request for 3.15. With this one we have:
- Support for ISO 15693 a.k.a. NFC vicinity a.k.a. Type 5 tags. ISO
15693 are long range (1 - 2 meters) vicinity tags/cards. The kernel
now supports those through the NFC netlink and digital APIs.
- Support for TI's trf7970a chipset. This chipset relies on the NFC
digital layer and the driver currently supports type 2, 4A and 5 tags.
- Support for NXP's pn544 secure firmare download. The pn544 C3 chipsets
relies on a different firmware download protocal than the C2 one. We
now support both and use the right one depending on the version we
detect at runtime.
- Support for 4A tags from the NFC digital layer.
- A bunch of cleanups and minor fixes from Axel Lin and Thierry Escande."
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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"; + }; +}; |