nfc: st-nci: Add device tree documentation for spi phy

Add st-nci-spi phy devicetree documentation

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/Documentation/devicetree/bindings/net/nfc/st-nci-i2c.txt b/Documentation/devicetree/bindings/net/nfc/st-nci-i2c.txt
new file mode 100644 (file)
index 0000000..d707588
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/nfc/st-nci-i2c.txt
@@ -0,0 +1,33 @@
+* STMicroelectronics SAS. ST NCI NFC Controller
+
+Required properties:
+- compatible: Should be "st,st21nfcb-i2c" or "st,st21nfcc-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_HIGH>;
+
+               reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
+       };
+};

diff --git a/Documentation/devicetree/bindings/net/nfc/st-nci-spi.txt b/Documentation/devicetree/bindings/net/nfc/st-nci-spi.txt
new file mode 100644 (file)
index 0000000..525681b
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/nfc/st-nci-spi.txt
@@ -0,0 +1,31 @@
+* STMicroelectronics SAS. ST NCI NFC Controller
+
+Required properties:
+- compatible: Should be "st,st21nfcb-spi"
+- spi-max-frequency: Maximum SPI frequency (<= 10000000).
+- 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 SPI4):
+
+&mcspi4 {
+
+       status = "okay";
+
+       st21nfcb: st21nfcb@0 {
+
+               compatible = "st,st21nfcb-spi";
+
+               clock-frequency = <4000000>;
+
+               interrupt-parent = <&gpio5>;
+               interrupts = <2 IRQ_TYPE_EDGE_RISING>;
+
+               reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
+       };
+};

diff --git a/Documentation/devicetree/bindings/net/nfc/st-nci.txt b/Documentation/devicetree/bindings/net/nfc/st-nci.txt
deleted file mode 100644 (file)
index d707588..0000000
--- a/Documentation/devicetree/bindings/net/nfc/st-nci.txt
+++ /dev/null
@@ -1,33 +0,0 @@
-* STMicroelectronics SAS. ST NCI NFC Controller
-
-Required properties:
-- compatible: Should be "st,st21nfcb-i2c" or "st,st21nfcc-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_HIGH>;
-
-               reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
-       };
-};