Re: [RFC part3 PATCH 2/2] ARM64 / clocksource: Use arch_timer_acpi_init()

From: Hanjun Guo
Date: Tue Dec 03 2013 - 08:52:56 EST


On 2013å12æ03æ 20:27, Linus Walleij wrote:
On Tue, Dec 3, 2013 at 12:15 PM, Hanjun Guo <hanjun.guo@xxxxxxxxxx> wrote:

+ /* if can't be initialised from DT, try ACPI way */
+ if (!arch_timer_get_rate())
+ arch_timer_acpi_init();
+
arch_timer_rate = arch_timer_get_rate();
This looks a bit fragile. Having a call like arch_timer_get_rate()
to check whether there is a DT node for the timer doesn't seem
right, can you refactor the code to provide some
has_arch_timer_node() or similar call instead, so it's a bit easier
to understand & maintain at least?

Good point, thanks for the guidance.
I will introduce has_arch_timer_node() as you said and use
it as follows:

if (has_arch_timer_node())
clocksource_of_init();
esle
arch_timer_acpi_init(); /* try ACPI way */

Is this make sense to you?

Thanks
Hanjun
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