[PATCH] ARM: architected timers: allow dt based discovery using clocksource_of_init

Thomas Abraham thomas.abraham at linaro.org
Tue Jan 22 05:19:11 EST 2013


Hi Mark,

On 21 January 2013 04:13, Mark Rutland <mark.rutland at arm.com> wrote:
> Hi Thomas,
>
> This looks really useful, and it's going to conflict with my arch_timer /
> arm_generic driver unification series [1].
>
> I'm happy to take this as part of my series if that's ok with you?

Sure, that's fine. This patch would probably be needed in 3.9 on
Exynos platforms. So you could squash this change into your series.

Thanks,
Thomas.

>
> On Mon, Jan 21, 2013 at 01:22:06AM +0000, Thomas Abraham wrote:
>> Add an entry in __clksrc_of_table so that ARMv7 architected timer is
>> discoverable using call to clocksource_of_init.
>>
>> Signed-off-by: Thomas Abraham <thomas.abraham at linaro.org>
>> ---
>>  arch/arm/kernel/arch_timer.c |    3 +++
>>  1 files changed, 3 insertions(+), 0 deletions(-)
>>
>> diff --git a/arch/arm/kernel/arch_timer.c b/arch/arm/kernel/arch_timer.c
>> index c8ef207..d21aada 100644
>> --- a/arch/arm/kernel/arch_timer.c
>> +++ b/arch/arm/kernel/arch_timer.c
>> @@ -504,6 +504,9 @@ int __init arch_timer_of_register(void)
>>
>>       return arch_timer_register();
>>  }
>> +#ifdef CONFIG_CLKSRC_OF
>> +CLOCKSOURCE_OF_DECLARE(armv7_timer, "arm,armv7-timer", arch_timer_of_register)
>> +#endif
>>
>>  int __init arch_timer_sched_clock_init(void)
>>  {
>> --
>> 1.7.5.4
>>
>> _______________________________________________
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>>
>
> Thanks,
> Mark.
>
> [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2013-January/142070.html
>


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