From: "Jonathan Neuschäfer" <j.neuschaefer@gmx.net>
To: linux-kernel@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org, linux-gpio@vger.kernel.org,
devicetree@vger.kernel.org,
"Jonathan Neuschäfer" <j.neuschaefer@gmx.net>,
"Linus Walleij" <linus.walleij@linaro.org>,
"Rob Herring" <robh+dt@kernel.org>,
"Mark Rutland" <mark.rutland@arm.com>,
"Benjamin Herrenschmidt" <benh@kernel.crashing.org>,
"Paul Mackerras" <paulus@samba.org>,
"Michael Ellerman" <mpe@ellerman.id.au>
Subject: [PATCH v2 4/6] dt-bindings: gpio: Add binding for Wii GPIO controller
Date: Mon, 22 Jan 2018 06:04:09 +0100 [thread overview]
Message-ID: <20180122050411.32460-5-j.neuschaefer@gmx.net> (raw)
In-Reply-To: <20180122050411.32460-1-j.neuschaefer@gmx.net>
The Nintendo Wii game console has a GPIO controller, which is used for
the optical disk slot LED, buttons, poweroff, etc. This patch adds a
binding for this GPIO controller.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-by: Rob Herring <robh@kernel.org>
---
v2:
- Drop the leading zero in the example, as suggested by Rob Herring
- Add some text to the commit message, as suggested by Linus Walleij
---
.../bindings/gpio/nintendo,hollywood-gpio.txt | 27 ++++++++++++++++++++++
.../devicetree/bindings/powerpc/nintendo/wii.txt | 9 +-------
2 files changed, 28 insertions(+), 8 deletions(-)
create mode 100644 Documentation/devicetree/bindings/gpio/nintendo,hollywood-gpio.txt
diff --git a/Documentation/devicetree/bindings/gpio/nintendo,hollywood-gpio.txt b/Documentation/devicetree/bindings/gpio/nintendo,hollywood-gpio.txt
new file mode 100644
index 000000000000..20fc72d9e61e
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/nintendo,hollywood-gpio.txt
@@ -0,0 +1,27 @@
+Nintendo Wii (Hollywood) GPIO controller
+
+Required properties:
+- compatible: "nintendo,hollywood-gpio
+- reg: Physical base address and length of the controller's registers.
+- gpio-controller: Marks the device node as a GPIO controller.
+- #gpio-cells: Should be <2>. The first cell is the pin number and the
+ second cell is used to specify optional parameters:
+ - bit 0 specifies polarity (0 for normal, 1 for inverted).
+
+Optional properties:
+- ngpios: see Documentation/devicetree/bindings/gpio/gpio.txt
+- interrupt-controller: Marks the device node as an interrupt controller.
+- #interrupt-cells: Should be two.
+- interrupts: Interrupt specifier for the controller's Broadway (PowerPC)
+ interrupt.
+- interrupt-parent: phandle of the parent interrupt controller.
+
+Example:
+
+ GPIO: gpio@d8000c0 {
+ #gpio-cells = <2>;
+ compatible = "nintendo,hollywood-gpio";
+ reg = <0x0d8000c0 0x40>;
+ gpio-controller;
+ ngpios = <24>;
+ }
diff --git a/Documentation/devicetree/bindings/powerpc/nintendo/wii.txt b/Documentation/devicetree/bindings/powerpc/nintendo/wii.txt
index 36afa322b04b..a3dc4b9fa11a 100644
--- a/Documentation/devicetree/bindings/powerpc/nintendo/wii.txt
+++ b/Documentation/devicetree/bindings/powerpc/nintendo/wii.txt
@@ -152,14 +152,7 @@ Nintendo Wii device tree
1.l) The General Purpose I/O (GPIO) controller node
- Represents the dual access 32 GPIO controller interface.
-
- Required properties:
-
- - #gpio-cells : <2>
- - compatible : should be "nintendo,hollywood-gpio"
- - reg : should contain the IPC registers location and length
- - gpio-controller
+ see Documentation/devicetree/bindings/gpio/nintendo,hollywood-gpio.txt
1.m) The control node
--
2.15.1
next prev parent reply other threads:[~2018-01-22 5:04 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-22 5:04 [PATCH v2 0/6] Nintendo Wii GPIO driver Jonathan Neuschäfer
2018-01-22 5:04 ` [PATCH v2 1/6] resource: Extend the PPC32 reserved memory hack Jonathan Neuschäfer
[not found] ` <20180122050411.32460-2-j.neuschaefer-hi6Y0CQ0nG0@public.gmane.org>
2018-01-23 12:58 ` Michael Ellerman
2018-01-23 16:37 ` Jonathan Neuschäfer
2018-01-24 1:23 ` Michael Ellerman
2018-01-27 8:00 ` Jonathan Neuschäfer
2018-01-22 5:04 ` [PATCH v2 2/6] powerpc: wii: Explicitly configure GPIO owner for poweroff pin Jonathan Neuschäfer
2018-01-22 5:04 ` [PATCH v2 3/6] gpio: Add GPIO driver for Nintendo Wii Jonathan Neuschäfer
2018-01-28 17:31 ` Andy Shevchenko
2018-01-31 8:37 ` Jonathan Neuschäfer
2018-02-07 12:29 ` Linus Walleij
2018-02-07 12:54 ` Jonathan Neuschäfer
2018-01-22 5:04 ` Jonathan Neuschäfer [this message]
2018-02-07 12:26 ` [PATCH v2 4/6] dt-bindings: gpio: Add binding for Wii GPIO controller Linus Walleij
2018-01-22 5:04 ` [PATCH v2 5/6] powerpc: wii.dts: Add ngpios property Jonathan Neuschäfer
[not found] ` <20180122050411.32460-1-j.neuschaefer-hi6Y0CQ0nG0@public.gmane.org>
2018-01-22 5:04 ` [PATCH v2 6/6] powerpc: wii.dts: Add GPIO line names Jonathan Neuschäfer
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