From: Andrew Jeffery <andrew@aj.id.au>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
Alexandre Courbot <gnurou@gmail.com>,
devicetree@vger.kernel.org, Andrew Jeffery <andrew@aj.id.au>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Russell King <linux@armlinux.org.uk>,
linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org,
Rob Herring <robh+dt@kernel.org>, Joel Stanley <joel@jms.id.au>,
linux-arm-kernel@lists.infradead.org, Jeremy Kerr <jk@ozlabs.org>
Subject: [PATCH 05/12] gpio: dt-bindings: Add documentation for Aspeed GPIO controllers
Date: Wed, 20 Jul 2016 15:28:26 +0930 [thread overview]
Message-ID: <1468994313-13538-6-git-send-email-andrew@aj.id.au> (raw)
In-Reply-To: <1468994313-13538-1-git-send-email-andrew@aj.id.au>
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
---
.../devicetree/bindings/gpio/gpio-aspeed.txt | 42 ++++++++++++++++++++++
1 file changed, 42 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/gpio-aspeed.txt
diff --git a/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt b/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt
new file mode 100644
index 000000000000..1954b288cd49
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt
@@ -0,0 +1,42 @@
+Aspeed 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 : Either "aspeed,ast2400-gpio" or "aspeed,ast2500-gpio"
+
+- reg : Address and length of the register set for the device
+- gpio-controller : Marks the device node as a GPIO controller.
+- interrupts : Interrupt specifier (see interrupt bindings for
+ details)
+
+Optional properties:
+- interrupt-controller : Marks the device node as an interrupt controller.
+- interrupt-parent : The parent interrupt controller, optional if inherited
+- #interrupt-cells : Should be 2. The first cell is the GPIO number.
+ The second cell bits[3:0] is used to specify trigger
+ type and level flags:
+ 1 = low-to-high edge triggered.
+ 2 = high-to-low edge triggered.
+ 4 = active high level-sensitive.
+ 8 = active low level-sensitive.
+
+The gpio and interrupt properties are further described in their respective
+bindings documentation:
+
+- Documentation/devicetree/bindings/gpio/gpio.txt
+- Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+
+ Example:
+ gpio@1e780000 {
+ #gpio-cells = <2>;
+ compatible = "aspeed,ast2400-gpio"
+ gpio-controller;
+ interrupt-parent = <&intc>;
+ interrupts = <20>;
+ reg = <0x1e780000 0x1000>;
+ };
--
2.7.4
next prev parent reply other threads:[~2016-07-20 5:58 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-20 5:58 [PATCH 00/12] aspeed: Add pinctrl and gpio drivers Andrew Jeffery
2016-07-20 5:58 ` [PATCH 01/12] pinctrl: dt-bindings: Add documentation for Aspeed pin controllers Andrew Jeffery
2016-07-20 19:05 ` Rob Herring
2016-07-20 23:13 ` Andrew Jeffery
2016-07-20 5:58 ` [PATCH 02/12] pinctrl: Add core pinctrl support for Aspeed SoCs Andrew Jeffery
2016-07-22 6:29 ` Joel Stanley
2016-08-11 8:41 ` Linus Walleij
2016-08-12 0:33 ` Andrew Jeffery
2016-08-12 13:18 ` Linus Walleij
2016-08-13 0:58 ` Benjamin Herrenschmidt
[not found] ` <1471049894.12231.41.camel-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
2016-08-15 0:36 ` Andrew Jeffery
2016-07-20 5:58 ` [PATCH 03/12] pinctrl: Add pinctrl-aspeed-g4 driver Andrew Jeffery
2016-07-20 5:58 ` [PATCH 04/12] pinctrl: Add pinctrl-aspeed-g5 driver Andrew Jeffery
2016-07-20 5:58 ` Andrew Jeffery [this message]
[not found] ` <1468994313-13538-6-git-send-email-andrew-zrmu5oMJ5Fs@public.gmane.org>
2016-07-20 19:06 ` [PATCH 05/12] gpio: dt-bindings: Add documentation for Aspeed GPIO controllers Rob Herring
2016-07-20 5:58 ` [PATCH 06/12] gpio: Add Aspeed driver Andrew Jeffery
2016-07-21 20:12 ` Paul Gortmaker
2016-07-22 0:49 ` Andrew Jeffery
[not found] ` <1468994313-13538-7-git-send-email-andrew-zrmu5oMJ5Fs@public.gmane.org>
2016-08-11 9:20 ` Linus Walleij
[not found] ` <CACRpkdYvZdTa7dpSs5=vnK77wpRGFT2W3e3=AS3GJGY7CXdwRA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-08-12 0:54 ` Andrew Jeffery
2016-07-20 5:58 ` [PATCH 07/12] syscon: dt-bindings: Add documentation for Aspeed system control units Andrew Jeffery
2016-07-20 19:09 ` Rob Herring
2016-07-21 1:04 ` Andrew Jeffery
2016-07-20 5:58 ` [PATCH 08/12] aspeed-g4: Add syscon and pin controller nodes Andrew Jeffery
2016-07-20 5:58 ` [PATCH 09/12] palmetto: Request relevant mux functions in devicetree Andrew Jeffery
2016-07-20 5:58 ` [PATCH 10/12] aspeed-g4: Add gpio controller to devicetree Andrew Jeffery
2016-07-20 5:58 ` [PATCH 11/12] aspeed-g5: Add syscon and pin controller nodes Andrew Jeffery
2016-07-20 5:58 ` [PATCH 12/12] aspeed-g5: Add gpio controller to devicetree Andrew Jeffery
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