Add Device Tree bindings for RAVE SP watchdog drvier - an MFD cell of
parent RAVE SP driver (documented in
Documentation/devicetree/bindings/mfd/zii,rave-sp.txt).
Cc: linux-kernel@vger.kernel.org
Cc: devicet...@vger.kernel.org
Cc: linux-watch...@vger.kernel.org
Cc: cphe...@gmail.com
Cc: Lucas Stach <l.st...@pengutronix.de>
Cc: Nikita Yushchenko <nikita.yo...@cogentembedded.com>
Cc: Lee Jones <lee.jo...@linaro.org>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Cc: Pavel Machek <pa...@ucw.cz>
Cc: Andy Shevchenko <andy.shevche...@gmail.com>
Cc: Guenter Roeck <li...@roeck-us.net>
Cc: Rob Herring <r...@kernel.org>
Cc: Johan Hovold <jo...@kernel.org>
Cc: Mark Rutland <mark.rutl...@arm.com>
Cc: Sebastian Reichel <sebastian.reic...@collabora.co.uk>
Acked-by: Rob Herring <r...@kernel.org>
Reviewed-by: Guenter Roeck <li...@roeck-us.net>
Signed-off-by: Nikita Yushchenko <nikita.yo...@cogentembedded.com>
Signed-off-by: Andrey Smirnov <andrew.smir...@gmail.com>
---
.../bindings/watchdog/zii,rave-sp-wdt.txt | 39 ++++++++++++++++++++++
1 file changed, 39 insertions(+)
create mode 100644
Documentation/devicetree/bindings/watchdog/zii,rave-sp-wdt.txt
diff --git a/Documentation/devicetree/bindings/watchdog/zii,rave-sp-wdt.txt
b/Documentation/devicetree/bindings/watchdog/zii,rave-sp-wdt.txt
new file mode 100644
index 000000000000..ab16659e781d
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/zii,rave-sp-wdt.txt
@@ -0,0 +1,39 @@
+Zodiac Inflight Innovations RAVE Supervisory Processor Watchdog Bindings
+
+RAVE SP watchdog device is a "MFD cell" device corresponding to
+watchdog functionality of RAVE Supervisory Processor. It is expected
+that its Device Tree node is specified as a child of the node
+corresponding to the parent RAVE SP device (as documented in
+Documentation/devicetree/bindings/mfd/zii,rave-sp.txt)
+
+Required properties:
+- compatible: Should be "zii,rave-sp-watchdog"
+
+Optional properties:
+
+- wdt-timeout: Two byte nvmem cell specified as per
+ Documentation/devicetree/bindings/nvmem/nvmem.txt
+
+Example:
+
+ rave-sp {
+ compatible = "zii,rave-sp-rdu1";
+ current-speed = <38400>;
+
+ eeprom {
+ compatible = "zii,pic-main-eeprom";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ wdt_timeout: wdt-timeout@8E {
+ reg = <0x8E 2>;
+ };
+ };
+
+ watchdog {
+ compatible = "zii,rave-sp-watchdog";
+ nvmem-cells = <&wdt_timeout>;
+ nvmem-cell-names = "wdt-timeout";
+ };
+ }
+
--
2.14.3
