On 07/04/2015 07:06 PM, Ariel D'Alessandro wrote:
Hi Joachim,
[ ... ]
+
+static int lpc18xx_wdt_start(struct watchdog_device *wdt_dev)
+{
+ struct lpc18xx_wdt_dev *lpc18xx_wdt = watchdog_get_drvdata(wdt_dev);
+ unsigned int val;
+
+ if (timer_pending(&lpc18xx_wdt->timer))
+ del_timer(&lpc18xx_wdt->timer);
+
+ val = readl(lpc18xx_wdt->base + LPC18XX_WDT_MOD);
+ val |= LPC18XX_WDT_MOD_WDEN;
+ val |= LPC18XX_WDT_MOD_WDRESET;
+ writel(val, lpc18xx_wdt->base + LPC18XX_WDT_MOD);
R-M-W sequence should probably be protect with a lock.
We can continue discussing this point on Ezequiel's response.
Please avoid unnecessary locks.
Thanks,
Guenter
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