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watchdog: sirfsoc: allow setting timeout in devicetree 

watchdog_init_timeout() will allways pick timeout_param since it
defaults to a valid timeout.

By following best practice described in
Documentation/watchdog/watchdog-kernel-api.txt, it also
let us to set timout-sec property in devicetree.

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
hifive-unleashed-5.1
Marcus Folkesson 2018-02-11 21:08:43 +01:00 committed by Wim Van Sebroeck
parent 1d1dedc216
commit f70b14540a
2 changed files with 5 additions and 1 deletions
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4
Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt
View File

@ -5,10 +5,14 @@ Required properties:
- reg: Address range of tick timer/WDT register set
- interrupts: interrupt number to the cpu
Optional properties:
- timeout-sec : Contains the watchdog timeout in seconds
Example:
timer@b0020000 {
compatible = "sirf,prima2-tick";
reg = <0xb0020000 0x1000>;
interrupts = <0>;
timeout-sec = <30>;
};

2
drivers/watchdog/sirfsoc_wdt.c
View File

@ -29,7 +29,7 @@
#define SIRFSOC_WDT_MAX_TIMEOUT (10 * 60) /* 10 mins */
#define SIRFSOC_WDT_DEFAULT_TIMEOUT 30 /* 30 secs */
static unsigned int timeout = SIRFSOC_WDT_DEFAULT_TIMEOUT;
static unsigned int timeout;
static bool nowayout = WATCHDOG_NOWAYOUT;
module_param(timeout, uint, 0);