diff options
author | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
---|---|---|
committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/Documentation/devicetree/bindings/net/nfc/nfcmrvl.txt | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/net/nfc/nfcmrvl.txt')
-rw-r--r-- | kernel/Documentation/devicetree/bindings/net/nfc/nfcmrvl.txt | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/net/nfc/nfcmrvl.txt b/kernel/Documentation/devicetree/bindings/net/nfc/nfcmrvl.txt new file mode 100644 index 000000000..76df91738 --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/net/nfc/nfcmrvl.txt @@ -0,0 +1,86 @@ +* Marvell International Ltd. NCI NFC Controller + +Required properties: +- compatible: Should be: + - "marvell,nfc-uart" or "mrvl,nfc-uart" for UART devices + - "marvell,nfc-i2c" for I2C devices + - "marvell,nfc-spi" for SPI devices + +Optional SoC specific properties: +- pinctrl-names: Contains only one value - "default". +- pintctrl-0: Specifies the pin control groups used for this controller. +- reset-n-io: Output GPIO pin used to reset the chip (active low). +- hci-muxed: Specifies that the chip is muxing NCI over HCI frames. + +Optional UART-based chip specific properties: +- flow-control: Specifies that the chip is using RTS/CTS. +- break-control: Specifies that the chip needs specific break management. + +Optional I2C-based chip specific properties: +- i2c-int-falling: Specifies that the chip read event shall be trigged on + falling edge. +- i2c-int-rising: Specifies that the chip read event shall be trigged on + rising edge. + +Example (for ARM-based BeagleBoard Black with 88W8887 on UART5): + +&uart5 { + status = "okay"; + + nfcmrvluart: nfcmrvluart@5 { + compatible = "marvell,nfc-uart"; + + reset-n-io = <&gpio3 16 0>; + + hci-muxed; + flow-control; + } +}; + + +Example (for ARM-based BeagleBoard Black with 88W8887 on I2C1): + +&i2c1 { + status = "okay"; + clock-frequency = <400000>; + + nfcmrvli2c0: i2c@1 { + compatible = "marvell,nfc-i2c"; + + reg = <0x8>; + + /* I2C INT configuration */ + interrupt-parent = <&gpio3>; + interrupts = <21 0>; + + /* I2C INT trigger configuration */ + i2c-int-rising; + + /* Reset IO */ + reset-n-io = <&gpio3 19 0>; + }; +}; + + +Example (for ARM-based BeagleBoard Black on SPI0): + +&spi0 { + + mrvlnfcspi0: spi@0 { + compatible = "marvell,nfc-spi"; + + reg = <0>; + + /* SPI Bus configuration */ + spi-max-frequency = <3000000>; + spi-cpha; + spi-cpol; + + /* SPI INT configuration */ + interrupt-parent = <&gpio1>; + interrupts = <17 0>; + + /* Reset IO */ + reset-n-io = <&gpio3 19 0>; + }; +}; |