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author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2016-04-01 11:56:23 (GMT) |
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committer | Wim Van Sebroeck <wim@iguana.be> | 2016-05-14 16:15:40 (GMT) |
commit | bd99b68ed7f96c9c845aad2a25f84145213058f2 (patch) | |
tree | ddb3e98613fb2be723e405cd5f7f1b89c344286f /Documentation/devicetree/bindings/watchdog | |
parent | e26e74b15468b42c47cf9b045539720006abb1e4 (diff) | |
download | linux-bd99b68ed7f96c9c845aad2a25f84145213058f2.tar.xz |
watchdog: renesas-wdt: add driver
Add support for watchdogs (RWDT and SWDT) found on RCar Gen3 based SoCs
from Renesas.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'Documentation/devicetree/bindings/watchdog')
-rw-r--r-- | Documentation/devicetree/bindings/watchdog/renesas-wdt.txt | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt b/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt new file mode 100644 index 0000000..b9512f1 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt @@ -0,0 +1,25 @@ +Renesas Watchdog Timer (WDT) Controller + +Required properties: +- compatible : Should be "renesas,r8a7795-wdt", or "renesas,rcar-gen3-wdt" + + When compatible with the generic version, nodes must list the SoC-specific + version corresponding to the platform first, followed by the generic + version. + +- reg : Should contain WDT registers location and length +- clocks : the clock feeding the watchdog timer. + +Optional properties: +- timeout-sec : Contains the watchdog timeout in seconds +- power-domains : the power domain the WDT belongs to + +Examples: + + wdt0: watchdog@e6020000 { + compatible = "renesas,r8a7795-wdt", "renesas,rcar-gen3-wdt"; + reg = <0 0xe6020000 0 0x0c>; + clocks = <&cpg CPG_MOD 402>; + power-domains = <&cpg>; + timeout-sec = <60>; + }; |