Since the timer control register is shared with the clocksource driver, use the recently introduced atomic_io_clear_set() to access such register.
Signed-off-by: Ezequiel Garcia <[email protected]> --- drivers/watchdog/orion_wdt.c | 20 ++++---------------- 1 file changed, 4 insertions(+), 16 deletions(-) diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c index f7722a4..cf64510 100644 --- a/drivers/watchdog/orion_wdt.c +++ b/drivers/watchdog/orion_wdt.c @@ -61,8 +61,6 @@ static int orion_wdt_ping(struct watchdog_device *wdt_dev) static int orion_wdt_start(struct watchdog_device *wdt_dev) { - u32 reg; - spin_lock(&wdt_lock); /* Set watchdog duration */ @@ -72,14 +70,10 @@ static int orion_wdt_start(struct watchdog_device *wdt_dev) writel(~WDT_INT_REQ, BRIDGE_CAUSE); /* Enable watchdog timer */ - reg = readl(wdt_reg + TIMER_CTRL); - reg |= WDT_EN; - writel(reg, wdt_reg + TIMER_CTRL); + atomic_io_modify(wdt_reg + TIMER_CTRL, WDT_EN, WDT_EN); /* Enable reset on watchdog */ - reg = readl(RSTOUTn_MASK); - reg |= WDT_RESET_OUT_EN; - writel(reg, RSTOUTn_MASK); + atomic_io_modify(RSTOUTn_MASK, WDT_RESET_OUT_EN, WDT_RESET_OUT_EN); spin_unlock(&wdt_lock); return 0; @@ -87,19 +81,13 @@ static int orion_wdt_start(struct watchdog_device *wdt_dev) static int orion_wdt_stop(struct watchdog_device *wdt_dev) { - u32 reg; - spin_lock(&wdt_lock); /* Disable reset on watchdog */ - reg = readl(RSTOUTn_MASK); - reg &= ~WDT_RESET_OUT_EN; - writel(reg, RSTOUTn_MASK); + atomic_io_modify(RSTOUTn_MASK, WDT_RESET_OUT_EN, 0); /* Disable watchdog timer */ - reg = readl(wdt_reg + TIMER_CTRL); - reg &= ~WDT_EN; - writel(reg, wdt_reg + TIMER_CTRL); + atomic_io_modify(wdt_reg + TIMER_CTRL, WDT_EN, 0); spin_unlock(&wdt_lock); return 0; -- 1.8.1.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
