From: Harini Katakam <harinik@xilinx.com>
To: linus.walleij@linaro.org, gnurou@gmail.com,
grant.likely@linaro.org, robh+dt@kernel.org, pawel.moll@arm.com,
mark.rutland@arm.com, ijc+devicetree@hellion.org.uk,
galak@codeaurora.org, rob@landley.net
Cc: michal.simek@xilinx.com, soren.brinkmann@xilinx.com,
linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-doc@vger.kernel.org, harinikatakamlinux@gmail.com,
Harini Katakam <harini.katakam@xilinx.com>,
Harini Katakam <harinik@xilinx.com>
Subject: [PATCH v3 2/2] devicetree: Add Zynq GPIO devicetree bindings documentation
Date: Tue, 8 Jul 2014 16:32:36 +0530 [thread overview]
Message-ID: <1404817356-21568-2-git-send-email-harinik@xilinx.com> (raw)
In-Reply-To: <1404817356-21568-1-git-send-email-harinik@xilinx.com>
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
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>;
+ };
--
1.7.9.5
next prev parent reply other threads:[~2014-07-08 11:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-08 11:02 [PATCH v3 1/2] gpio: Add driver for Zynq GPIO controller Harini Katakam
2014-07-08 11:02 ` Harini Katakam [this message]
2014-07-10 9:14 ` [PATCH v3 2/2] devicetree: Add Zynq GPIO devicetree bindings documentation Linus Walleij
2014-07-10 9:12 ` [PATCH v3 1/2] gpio: Add driver for Zynq GPIO controller Linus Walleij
2014-07-10 9:17 ` Harini Katakam
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