diff mbox

[v3,2/2] devicetree: Add Zynq GPIO devicetree bindings documentation

Message ID 1404817356-21568-2-git-send-email-harinik@xilinx.com (mailing list archive)
State New, archived
Headers show

Commit Message

Harini Katakam July 8, 2014, 11:02 a.m. UTC 
From: Harini Katakam <harini.katakam@xilinx.com>

Add gpio-zynq bindings documentation.

Signed-off-by: Harini Katakam <harinik@xilinx.com>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
---

v3 changes:
Change description of #gpio-cells - use 'gpio-line' instead of 'pin'

v2 changes:
Improve description.

---
 .../devicetree/bindings/gpio/gpio-zynq.txt         |   26 ++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpio/gpio-zynq.txt

Comments

Linus Walleij July 10, 2014, 9:14 a.m. UTC | #1 
On Tue, Jul 8, 2014 at 1:02 PM, Harini Katakam <harinik@xilinx.com> wrote:

> From: Harini Katakam <harini.katakam@xilinx.com>
>
> Add gpio-zynq bindings documentation.
>
> Signed-off-by: Harini Katakam <harinik@xilinx.com>
> Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>

Patch applied, timed out waiting for binding feedback and nothing
controversial in there.

Yours,
Linus Walleij
diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/gpio/gpio-zynq.txt b/Documentation/devicetree/bindings/gpio/gpio-zynq.txt
new file mode 100644
index 0000000..986371a
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-zynq.txt
@@ -0,0 +1,26 @@ 
+Xilinx Zynq GPIO controller Device Tree Bindings
+-------------------------------------------
+
+Required properties:
+- #gpio-cells 		: Should be two
+			  - First cell is the GPIO line number
+			  - Second cell is used to specify optional
+			    parameters (unused)
+- compatible		: Should be "xlnx,zynq-gpio-1.0"
+- clocks		: Clock specifier (see clock bindings for details)
+- gpio-controller	: Marks the device node as a GPIO controller.
+- interrupts		: Interrupt specifier (see interrupt bindings for
+			  details)
+- interrupt-parent	: Must be core interrupt controller
+- reg			: Address and length of the register set for the device
+
+Example:
+	gpio@e000a000 {
+		#gpio-cells = <2>;
+		compatible = "xlnx,zynq-gpio-1.0";
+		clocks = <&clkc 42>;
+		gpio-controller;
+		interrupt-parent = <&intc>;
+		interrupts = <0 20 4>;
+		reg = <0xe000a000 0x1000>;
+	};