Updated the documentation for spi interface.
Signed-off-by: Rama Kiran Kumar Indrakanti <indrakanti_ram@xxxxxxxxxxx>
---
with Legal name correction.
---
.../devicetree/bindings/serial/nxp,sc16is7xx.txt | 37 ++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt
index 246c795..fbfe536 100644
--- a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt
+++ b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt
@@ -1,4 +1,5 @@
* NXP SC16IS7xx advanced Universal Asynchronous Receiver-Transmitter (UART)
+* i2c as bus
Required properties:
- compatible: Should be one of the following:
@@ -31,3 +32,39 @@ Example:
gpio-controller;
#gpio-cells = <2>;
};
+
+* spi as bus
+
+Required properties:
+- compatible: Should be one of the following:
+ - "nxp,sc16is740" for NXP SC16IS740,
+ - "nxp,sc16is741" for NXP SC16IS741,
+ - "nxp,sc16is750" for NXP SC16IS750,
+ - "nxp,sc16is752" for NXP SC16IS752,
+ - "nxp,sc16is760" for NXP SC16IS760,
+ - "nxp,sc16is762" for NXP SC16IS762.
+- reg: SPI chip select number.
+- interrupt-parent: The phandle for the interrupt controller that
+ services interrupts for this IC.
+- interrupts: Specifies the interrupt source of the parent interrupt
+ controller. The format of the interrupt specifier depends on the
+ parent interrupt controller.
+- clocks: phandle to the IC source clock.
+
+Optional properties:
+- gpio-controller: Marks the device node as a GPIO controller.
+- #gpio-cells: Should be two. The first cell is the GPIO number and
+ the second cell is used to specify the GPIO polarity:
+ 0 = active high,
+ 1 = active low.
+
+Example:
+ sc16is750: sc16is750@0 {
+ compatible = "nxp,sc16is750";
+ reg = <0>;
+ clocks = <&clk20m>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
--
1.9.1
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