Merge remote-tracking branch 'pci/next'

[karo-tx-linux.git] / Documentation / devicetree / bindings / net / nfc / nfcmrvl.txt

diff --git a/Documentation/devicetree/bindings/net/nfc/nfcmrvl.txt b/Documentation/devicetree/bindings/net/nfc/nfcmrvl.txt
index 7c4a0cc370cf42386ed5e8a979b631280f3d81a5..76df9173825a00e39cca99a9a8c35bc51f2b57b8 100644 (file)
--- a/Documentation/devicetree/bindings/net/nfc/nfcmrvl.txt
+++ b/Documentation/devicetree/bindings/net/nfc/nfcmrvl.txt
@@ -1,7 +1,10 @@
 * Marvell International Ltd. NCI NFC Controller
 
 Required properties:
-- compatible: Should be "mrvl,nfc-uart".
+- 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".
@@ -13,13 +16,19 @@ 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 = "mrvl,nfc-uart";
+               compatible = "marvell,nfc-uart";
 
                reset-n-io = <&gpio3 16 0>;
 
@@ -27,3 +36,51 @@ Example (for ARM-based BeagleBoard Black with 88W8887 on UART5):
                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>;
+       };
+};