clocksource/drivers/sun5i: Use of_io_request_and_map()

of_iomap doesn't do a request_mem_region() on the memory area
defined in the DT it maps. Switch to of_io_request_and_map() to
make sure we're the only users.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1427796746-373-3-git-send-email-daniel.lezcano@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

drivers/clocksource/timer-sun5i.c

@@ -137,7 +137,7 @@ static void __init sun5i_timer_init(struct device_node *node)
 	int ret, irq;
 	u32 val;
 
-	timer_base = of_iomap(node, 0);
+	timer_base = of_io_request_and_map(node, 0, of_node_full_name(node));
 	if (!timer_base)
 		panic("Can't map registers");