From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: From: To: , , , , , , , , , CC: , , , Thor Thayer Subject: [RFC 1/8] dt-bindings: mfd: Add Altera Arria10 System Resource Chip bindings Date: Tue, 29 Mar 2016 14:13:04 -0500 Message-ID: <1459278791-3646-2-git-send-email-tthayer@opensource.altera.com> In-Reply-To: <1459278791-3646-1-git-send-email-tthayer@opensource.altera.com> References: <1459278791-3646-1-git-send-email-tthayer@opensource.altera.com> MIME-Version: 1.0 Content-Type: text/plain List-ID: From: Thor Thayer The Altera Arria10 Devkit System Resource chip is a Multi-Function Device, it has two subdevices: - GPIO - HWMON This patch adds documentation for the Altera A10-SR DT bindings. Signed-off-by: Thor Thayer --- .../devicetree/bindings/mfd/altera-a10sr.txt | 35 ++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/altera-a10sr.txt diff --git a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt new file mode 100644 index 0000000..564c761 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt @@ -0,0 +1,35 @@ +* Altera Arria10 Development Kit System Resource Chip + +Required parent device properties: +- compatible : "altr,altr_a10sr" +- spi-max-frequency : Maximum SPI frequency. +- reg : the SPI Chip Select address for the Arria10 System Resource chip + +The A10SR consists of this varied group of sub-devices: + +Device Description +------ ---------- +altr_a10sr_gpio GPIO Controller +altr_a10sr_hwmon Hardware Monitor + +The LEDs are implemented entirely in the device tree using +the gpio-led framework. + +Example: + + a10-sr: a10-sr@0 { + compatible = "altr,altr-a10sr"; + reg = <0>; + spi-max-frequency = <100000>; + + a10sr_gpio: a10sr_gpio { + compatible = "altr,a10sr-gpio"; + gpio-controller; + #gpio-cells = <2>; + ngpios = <16>; + }; + + a10sr_hwmon: a10sr_hwmon { + compatible = "altr,a10sr-hwmon"; + }; + }; -- 1.7.9.5