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From: haojian.zhuang@linaro.org (Haojian Zhuang)
Date: Wed, 13 Mar 2013 23:25:42 +0800
Subject: [PATCH v3 03/11] clocksource: sp804: add device tree support
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On 13 March 2013 23:23, Pawel Moll <pawel.moll@arm.com> wrote:
> On Wed, 2013-03-13 at 14:17 +0000, Rob Herring wrote:
>> How about:
>>
>> 1 irq - TIMINT1
>> 2 irqs w/ same source # - TIMINTC
>> 2 irqs w/ different source # - TIMINT1 and TIMINT2
>
> On Wed, 2013-03-13 at 15:11 +0000, Haojian Zhuang wrote:
>> What's the scenario that we must use TIMINTC? TIMINT1 & TIMINT2 are
>> already enough on these two TIMERs. If we really needn't TIMINTC, we
>> need to support it. Since it's over-designed.
>>
>> If TIMINT1 & TIMINT2 aren't routed, and only TIMINTC is routed. It's another
>> case. We can consider it as replacement of TIMINT1.
>
> Just a thought... How to describe a SP804 with only TIMINT2 wired up?
>
> Pawe?
>
>
There's no difference on TIMINTC is only used to replace TIMINT1 or TIMINT2.
We only need to tell sp804 driver which timer is using irq, and the irq number.