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watchdog: omap: use watchdog_init_timeout instead of open coding it

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Instead of (partly) open coding watchdog_init_timeout to determine the
inital timeout use the core function that exists for exactly this
purpose.

As a side effect the "timeout-sec" device-tree property is recognized now
(though currently unused in the omap device trees).

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Uwe Kleine-König 2015-04-27 11:22:59 +02:00 committed by Wim Van Sebroeck
parent 83efa1cbcf
commit a4f741e3e1
2 changed files with 4 additions and 4 deletions
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3
Documentation/devicetree/bindings/watchdog/omap-wdt.txt
View File

@ -4,6 +4,9 @@ Required properties:
- compatible : "ti,omap3-wdt" for OMAP3 or "ti,omap4-wdt" for OMAP4
- ti,hwmods : Name of the hwmod associated to the WDT
Optional properties:
- timeout-sec : default watchdog timeout in seconds
Examples:
wdt2: wdt@4a314000 {

5
drivers/watchdog/omap_wdt.c
View File

@ -234,10 +234,7 @@ static int omap_wdt_probe(struct platform_device *pdev)
omap_wdt->min_timeout = TIMER_MARGIN_MIN;
omap_wdt->max_timeout = TIMER_MARGIN_MAX;
if (timer_margin >= TIMER_MARGIN_MIN &&
timer_margin <= TIMER_MARGIN_MAX)
omap_wdt->timeout = timer_margin;
else
if (watchdog_init_timeout(omap_wdt, timer_margin, &pdev->dev) < 0)
omap_wdt->timeout = TIMER_MARGIN_DEFAULT;
watchdog_set_drvdata(omap_wdt, wdev);