From: "Lad, Prabhakar" <prabhakar.csengg@xxxxxxxxx>
This patch adds missing #gpio-cells and also adds a
usage example for leds.
Reported-by: Alexander Holler <holler@xxxxxxxxxxxxx>
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx>
---
.../devicetree/bindings/gpio/gpio-davinci.txt | 21 ++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/Documentation/devicetree/bindings/gpio/gpio-davinci.txt b/Documentation/devicetree/bindings/gpio/gpio-davinci.txt
index 4ce9862..5079ba7 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-davinci.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-davinci.txt
@@ -8,6 +8,10 @@ Required Properties:
- gpio-controller : Marks the device node as a gpio controller.
+- #gpio-cells : Should be two.
+ - first cell is the pin number
+ - second cell is used to specify optional parameters (unused)
+
- interrupt-parent: phandle of the parent interrupt controller.
- interrupts: Array of GPIO interrupt number. Only banked or unbanked IRQs are
@@ -27,6 +31,7 @@ Example:
gpio: gpio@1e26000 {
compatible = "ti,dm6441-gpio";
gpio-controller;
+ #gpio-cells = <2>;
reg = <0x226000 0x1000>;
interrupt-parent = <&intc>;
interrupts = <42 IRQ_TYPE_EDGE_BOTH 43 IRQ_TYPE_EDGE_BOTH
@@ -39,3 +44,19 @@ gpio: gpio@1e26000 {
interrupt-controller;
#interrupt-cells = <2>;
};
+
+leds {
+ compatible = "gpio-leds";
+
+ led1 {
+ label = "davinci:green:usr1";
+ gpios = <&gpio 10 GPIO_ACTIVE_HIGH>;
+ ...
+ };
+
+ led2 {
+ label = "davinci:red:debug1";
+ gpios = <&gpio 11 GPIO_ACTIVE_HIGH>;
+ ...
+ };
+};
--
1.7.9.5
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