clocksource/drivers/arm_arch_timer: Map frame with of_io_request_and_map()

Let's use the of_io_request_and_map() API so that the frame
region is protected and shows up in /proc/iomem.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>

diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index a2503db7e533e2f83dfb5937e846b8c916b80054..02fef6830e728d0adfad52920034c722273dfe61 100644 (file)
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -971,8 +971,9 @@ static int __init arch_timer_mem_init(struct device_node *np)
        }
 
        ret= -ENXIO;
-       base = arch_counter_base = of_iomap(best_frame, 0);
-       if (!base) {
+       base = arch_counter_base = of_io_request_and_map(best_frame, 0,
+                                                        "arch_mem_timer");
+       if (IS_ERR(base)) {
                pr_err("arch_timer: Can't map frame's registers\n");
                goto out;
        }