[RFC 1/8] dt-bindings: mfd: Add Altera Arria10 System Resource Chip bindings

tthayer
2016-03-29T19:13:04Z

From: Thor Thayer <tthayer@opensource.altera.com>

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 <tthayer@opensource.altera.com>
---
.../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