[PATCH v5 3/9] dt-bindings: add Amlogic Meson GPIO interrupt-controller DT binding documentation

From: Heiner Kallweit <hkallweit1@gmail.com>
To: Jerome Brunet <jbrunet@baylibre.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Marc Zyngier <marc.zyngier@arm.com>,
	Linus Walleij <linus.walleij@linaro.org>,
	Kevin Hilman <khilman@baylibre.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Rob Herring <robh@kernel.org>,
	Neil Armstrong <narmstrong@baylibre.com>
Cc: devicetree@vger.kernel.org, linux-amlogic@lists.infradead.org,
	linux-gpio@vger.kernel.org,
	"thierry.reding@gmail.com" <thierry.reding@gmail.com>,
	Thierry Reding <treding@nvidia.com>
Subject: [PATCH v5 3/9] dt-bindings: add Amlogic Meson GPIO interrupt-controller DT binding documentation
Date: Tue, 30 May 2017 22:26:33 +0200	[thread overview]
Message-ID: <c190f764-b3af-8982-00e3-87e28eabecca@gmail.com> (raw)
In-Reply-To: <66c57893-0a9e-4f8c-a017-ab346abbdfd0@gmail.com>

Add dt binding documentation for Amlogic meson GPIO interrupt controller.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
---
v5:
- added Reviewed-by
---
 .../amlogic,meson-gpio-intc.txt                    | 26 ++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt

diff --git a/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt
new file mode 100644
index 00000000..2f20d212
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt
@@ -0,0 +1,26 @@
+Amlogic meson GPIO interrupt controller
+
+Meson SoCs contains an interrupt controller which is able watch the SoC pads
+and generate an interrupt on edges or level. The controller is essentially a
+256 pads to 8 GIC interrupt multiplexer, with a filter block to select edge
+or level and polarity. The actual number of interrupt exposed depends on the
+SoC.
+
+Required properties:
+
+- compatible : should be "amlogic,meson-gpio-intc".
+- reg : Specifies base physical address and size of the registers.
+- interrupt-controller : Identifies the node as an interrupt controller.
+- #interrupt-cells : should be 2.
+- parent-interrupts : list of GIC interrupts which can be used with the
+		      GPIO IRQ multiplexer
+
+Example:
+
+gpio_intc: interrupt-controller@9880 {
+	compatible = "amlogic,meson-gpio-intc";
+	reg = <0x0 0x09880 0x0 0x10>;
+	interrupt-controller;
+	#interrupt-cells = <2>;
+	parent-interrupts = <64 65 66 67 68 69 70 71>;
+};
-- 
2.13.0


