Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1237779

Re: [RFC/PATCH 00/11] arm: omap: counter32k rework

Show all headers | View raw

On 09/30/2015 04:49 PM, Arnd Bergmann wrote:
> On Wednesday 30 September 2015 16:42:21 Arnd Bergmann wrote:
>>
>> TEGRA folks: the tegra_read_persistent_clock() implementation apparently
>> predates the Tegra RTC driver and I wonder if they actually do the
>> right thing in combination. Could it be that the wall time forwards
>> twice as fast as it should during resume when the RTC driver is loaded?
>> Could it be that we can simply remove  tegra_read_persistent_clock()
>> and the register_persistent_clock() infrastructure?
>>
>
> I found the 'sleeptime_injected' variable now, which takes care of
> forwarding the clock by the correct amount.
>
> I also found the CLOCK_SOURCE_SUSPEND_NONSTOP flag next to it, which
> should let us use the counter32k driver to provide the correct
> time during suspend without the omap_read_persistent_clock() function.
> We should be able to just delete that code.
>
> If we decide to also delete the tegra_read_persistent_clock()
> function, we can remove the registration too.


+1


-- 
  <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs

Follow Linaro:  <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[RFC/PATCH 00/11] arm: omap: counter32k rework Felipe Balbi <balbi@ti.com> - 2015-09-29 22:50 +0200
  Re: [RFC/PATCH 00/11] arm: omap: counter32k rework Arnd Bergmann <arnd@arndb.de> - 2015-09-30 10:30 +0200
    Re: [RFC/PATCH 00/11] arm: omap: counter32k rework Felipe Balbi <balbi@ti.com> - 2015-09-30 16:20 +0200
      Re: [RFC/PATCH 00/11] arm: omap: counter32k rework Arnd Bergmann <arnd@arndb.de> - 2015-09-30 16:50 +0200
        Re: [RFC/PATCH 00/11] arm: omap: counter32k rework Felipe Balbi <balbi@ti.com> - 2015-09-30 17:00 +0200
        Re: [RFC/PATCH 00/11] arm: omap: counter32k rework Arnd Bergmann <arnd@arndb.de> - 2015-09-30 17:00 +0200
          Re: [RFC/PATCH 00/11] arm: omap: counter32k rework Thierry Reding <thierry.reding@gmail.com> - 2015-09-30 17:10 +0200
          Re: [RFC/PATCH 00/11] arm: omap: counter32k rework Daniel Lezcano <daniel.lezcano@linaro.org> - 2015-10-02 00:20 +0200
            Re: [RFC/PATCH 00/11] arm: omap: counter32k rework Tony Lindgren <tony@atomide.com> - 2015-10-05 13:00 +0200
              Re: [RFC/PATCH 00/11] arm: omap: counter32k rework Arnd Bergmann <arnd@arndb.de> - 2015-10-05 13:10 +0200
                Re: [RFC/PATCH 00/11] arm: omap: counter32k rework Tony Lindgren <tony@atomide.com> - 2015-10-05 13:20 +0200
                Re: [RFC/PATCH 00/11] arm: omap: counter32k rework Arnd Bergmann <arnd@arndb.de> - 2015-10-05 14:30 +0200

csiph-web