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Re: [PATCH 6/9] ARC: clocksource: DT based probe

From Vineet Gupta <Vineet.Gupta1@synopsys.com>
Newsgroups linux.kernel
Subject Re: [PATCH 6/9] ARC: clocksource: DT based probe
Date 2016-02-08 13:30 +0100
Message-ID <qZT74-584-9@gated-at.bofh.it> (permalink)
References <qXGQH-1uV-25@gated-at.bofh.it> <qXH0l-1Rh-3@gated-at.bofh.it> <qZSXo-54t-13@gated-at.bofh.it>
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On Monday 08 February 2016 05:40 PM, Daniel Lezcano wrote:
> On 02/02/2016 11:58 AM, Vineet Gupta wrote:
>> - Remove explicit clocksource setup and let it be done by OF framework
>>    by defining CLOCKSOURCE_OF_DECLARE() for various timers
>>
>> - This allows multiple clocksources to be potentially registered
>>    simultaneouly: previously we could only do one - as all of them had
>>    same arc_counter_setup() routine for registration
>>
>> - Setup routines also ensure that the underlying timer actually exists.
>>
>> - Remove some of the panic() calls if underlying timer is NOT detcted as
>>    a fallback clocksource might still be available
>>    1. If GRFC doesn't exist, jiffies clocksource gets registered anyways
>>    2. if RTC doesn't exist, TIMER1 cetainly will take over (as it is
>>       always present)
>>
>> Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
>> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
> 
> May be it is time to move these drivers into the drivers/clocksource directory
> where they belong to.

I suppose we could, but that is only possible after this round of "moderization",
i.e. usage of CLOCKSOURCE_OF_DECLARE() et al.

Plus the move will require a bunch of mechanical crap such as read_aux_reg() which
only ARC defines (similar to headaches Noam had for his clksrc).

So if we could agree on the sanity of this round of changes, I can work towards
the imminent move into drivers.

Thx,
-Vineet

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Thread

[PATCH 0/9] ARC clockevent/clocksource modernization Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2016-02-02 12:00 +0100
  [PATCH 2/9] ARC: [dts] Introduce Timer bindings Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2016-02-02 12:00 +0100
    Re: [PATCH 2/9] ARC: [dts] Introduce Timer bindings Alexey Brodkin <Alexey.Brodkin@synopsys.com> - 2016-02-02 13:50 +0100
    Re: [PATCH 2/9] ARC: [dts] Introduce Timer bindings Alexey Brodkin <Alexey.Brodkin@synopsys.com> - 2016-02-02 14:20 +0100
      Re: [PATCH 2/9] ARC: [dts] Introduce Timer bindings Vineet Gupta <vgupta@synopsys.com> - 2016-02-02 15:30 +0100
        Re: [PATCH 2/9] ARC: [dts] Introduce Timer bindings Alexey Brodkin <Alexey.Brodkin@synopsys.com> - 2016-02-02 16:40 +0100
          Re: [PATCH 2/9] ARC: [dts] Introduce Timer bindings Alexey Brodkin <Alexey.Brodkin@synopsys.com> - 2016-02-03 00:00 +0100
            Re: [PATCH 2/9] ARC: [dts] Introduce Timer bindings Alexey Brodkin <Alexey.Brodkin@synopsys.com> - 2016-02-03 14:50 +0100
              Re: [PATCH 2/9] ARC: [dts] Introduce Timer bindings Alexey Brodkin <Alexey.Brodkin@synopsys.com> - 2016-02-03 15:00 +0100
    Re: [PATCH 2/9] ARC: [dts] Introduce Timer bindings Rob Herring <robh@kernel.org> - 2016-02-02 23:10 +0100
      Re: [PATCH 2/9] ARC: [dts] Introduce Timer bindings Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2016-02-03 09:10 +0100
        Re: [PATCH 2/9] ARC: [dts] Introduce Timer bindings Rob Herring <robh@kernel.org> - 2016-02-03 16:40 +0100
  [PATCH 6/9] ARC: clocksource: DT based probe Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2016-02-02 12:10 +0100
    Re: [PATCH 6/9] ARC: clocksource: DT based probe Daniel Lezcano <daniel.lezcano@linaro.org> - 2016-02-08 13:20 +0100
      Re: [PATCH 6/9] ARC: clocksource: DT based probe Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2016-02-08 13:30 +0100
  [PATCH 3/9] ARC: clockevent: switch to cpu notifier for clockevent setup Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2016-02-02 12:10 +0100
  [PATCH 9/9] ARC: RIP arc_{get|set}_core_freq() clk API Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2016-02-02 12:10 +0100
  [PATCH 4/9] ARC: clockevent: Prepare for DT based probe Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2016-02-02 12:10 +0100
  [PATCH 7/9] ARC: use fixed frequencies in arc_set_early_base_baud() Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2016-02-02 12:10 +0100
    Re: [PATCH 7/9] ARC: use fixed frequencies in  arc_set_early_base_baud() Alexey Brodkin <Alexey.Brodkin@synopsys.com> - 2016-02-02 14:00 +0100
      Re: [PATCH 7/9] ARC: use fixed frequencies in arc_set_early_base_baud() christian.ruppert@alitech.com - 2016-02-02 15:10 +0100
        Re: [PATCH 7/9] ARC: use fixed frequencies in  arc_set_early_base_baud() Alexey Brodkin <Alexey.Brodkin@synopsys.com> - 2016-02-02 15:30 +0100
  [PATCH 5/9] ARC: clockevent: DT based probe Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2016-02-02 12:10 +0100
  [PATCH 8/9] ARC: [plat-axs] Don't use arc_{get|set}_core_freq() for manipulating core clk Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2016-02-02 12:10 +0100

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