clocksource/drivers/timer-of: Don't request the resource by name

When the driver does not specify a name for the resource, don't use
of_io_request_and_map() but of_iomap(). That prevents resource name allocation
conflicts on some platforms which have the same name as the node.

Tested-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1515418139-23276-10-git-send-email-daniel.lezcano@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/drivers/clocksource/timer-of.c b/drivers/clocksource/timer-of.c
index 25008d2..06ed88a 100644 (file)
--- a/drivers/clocksource/timer-of.c
+++ b/drivers/clocksource/timer-of.c
@@ -161,11 +161,11 @@ static __init void timer_of_base_exit(struct of_timer_base *of_base)
 static __init int timer_of_base_init(struct device_node *np,
                                     struct of_timer_base *of_base)
 {
-       const char *name = of_base->name ? of_base->name : np->full_name;
-
-       of_base->base = of_io_request_and_map(np, of_base->index, name);
+       of_base->base = of_base->name ?
+               of_io_request_and_map(np, of_base->index, of_base->name) :
+               of_iomap(np, of_base->index);
        if (IS_ERR(of_base->base)) {
-               pr_err("Failed to iomap (%s)\n", name);
+               pr_err("Failed to iomap (%s)\n", of_base->name);
                return PTR_ERR(of_base->base);
        }