From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?q?Jonathan=20Neusch=C3=A4fer?= Subject: [PATCH v2 4/6] dt-bindings: gpio: Add binding for Wii GPIO controller Date: Mon, 22 Jan 2018 06:04:09 +0100 Message-ID: <20180122050411.32460-5-j.neuschaefer@gmx.net> References: <20180122050411.32460-1-j.neuschaefer@gmx.net> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20180122050411.32460-1-j.neuschaefer@gmx.net> Sender: linux-gpio-owner@vger.kernel.org To: linux-kernel@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, =?UTF-8?q?Jonathan=20Neusch=C3=A4fer?= , Linus Walleij , Rob Herring , Mark Rutland , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman List-Id: devicetree@vger.kernel.org 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 Reviewed-by: Rob Herring --- 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