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watchdog: orion: Remove unneeded atomic access

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The RSTOUT register on the Armada 370 SoC variant is a dedicated register
(not shared across orthogonal subsystems) and so it's not needed to write
it atomically.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Tested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Ezequiel Garcia 2014-03-15 15:17:58 -03:00 committed by Wim Van Sebroeck
parent 92d4fc1a1f
commit eba985e20c
1 changed files with 5 additions and 2 deletions
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7
drivers/watchdog/orion_wdt.c
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@ -145,6 +145,7 @@ static int orion_wdt_ping(struct watchdog_device *wdt_dev)
static int armada370_start(struct watchdog_device *wdt_dev)
{
struct orion_watchdog *dev = watchdog_get_drvdata(wdt_dev);
u32 reg;
/* Set watchdog duration */
writel(dev->clk_rate * wdt_dev->timeout,
@ -157,8 +158,10 @@ static int armada370_start(struct watchdog_device *wdt_dev)
atomic_io_modify(dev->reg + TIMER_CTRL, dev->data->wdt_enable_bit,
dev->data->wdt_enable_bit);
atomic_io_modify(dev->rstout, dev->data->rstout_enable_bit,
dev->data->rstout_enable_bit);
/* Enable reset on watchdog */
reg = readl(dev->rstout);
reg |= dev->data->rstout_enable_bit;
writel(reg, dev->rstout);
return 0;
}