From: Arnd Bergmann <arnd@arndb.de>
To: linux-arm-kernel@lists.infradead.org
Cc: Felipe Balbi <balbi@ti.com>, Tony Lindgren <tony@atomide.com>,
daniel.lezcano@linaro.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
tglx@linutronix.de,
Linux OMAP Mailing List <linux-omap@vger.kernel.org>
Subject: Re: [RFC/PATCH 00/11] arm: omap: counter32k rework
Date: Wed, 30 Sep 2015 10:22:46 +0200 [thread overview]
Message-ID: <1986790.syN3WBv9AR@wuerfel> (raw)
In-Reply-To: <1443559446-26969-1-git-send-email-balbi@ti.com>
On Tuesday 29 September 2015 15:43:55 Felipe Balbi wrote:
>
> the following patches de-obfuscate arch/arm/mach-omap2/timer.c
> and start moving code to drivers/clocksource. So far only counter32k
> has been moved over.
>
> Note that we can't get rid of all the code (yet) because there are
> still platforms relying to legacy boot and because of the strong
> coupling with OMAP's hwmod layer.
>
> This is, for now, an RFC and has be written on top of [1]. Boot tested
> with AM335x and AM437x.
>
> [1] http://marc.info/?l=linux-omap&m=144354336924308&w=2
Looks very nice!
> ps: if anybody has a good idea on how to get rid of
> register_persistent_clock(), please let me know
I don't think we want to get rid of that, because it is the more
accurate interface. IIRC systems that have an RTC will use
timekeeping_inject_sleeptime64() in rtc_resume(). I don't know however
how the two methods are coordinated, i.e. how the kernel ensures that
exactly one of the two is used, but never both.
Arnd
next prev parent reply other threads:[~2015-09-30 8:23 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-29 20:43 [RFC/PATCH 00/11] arm: omap: counter32k rework Felipe Balbi
2015-09-29 20:43 ` [RFC/PATCH 01/11] arm: omap2: timer: get rid of obfuscating macros Felipe Balbi
2015-09-29 20:43 ` [RFC/PATCH 02/11] arm: omap2: timer: add a gptimer argument to sync32k_timer_init() Felipe Balbi
2015-09-29 20:43 ` [RFC/PATCH 03/11] arm: omap2: timer: remove __omap_gptimer_init() Felipe Balbi
2015-10-05 11:01 ` Tony Lindgren
2015-10-05 15:24 ` Felipe Balbi
2015-10-05 16:02 ` Tony Lindgren
2015-10-05 16:08 ` Felipe Balbi
2015-10-05 16:30 ` Tony Lindgren
2015-09-29 20:43 ` [RFC/PATCH 04/11] arm: omap2: timer: provide generic sync32k_timer_init function Felipe Balbi
2015-09-29 20:44 ` [RFC/PATCH 05/11] arm: omap2: timer: move realtime_counter_init() around Felipe Balbi
2015-09-29 20:44 ` [RFC/PATCH 06/11] arm: omap2: timer: always call clocksource_of_init() when DT Felipe Balbi
2015-09-29 20:44 ` [RFC/PATCH 07/11] arm: omap2: timer: remove omap4_local_timer_init Felipe Balbi
2015-09-29 20:44 ` [RFC/PATCH 08/11] arm: omap2: timer: rename omap_sync32k_timer_init() Felipe Balbi
2015-09-29 20:44 ` [RFC/PATCH 09/11] clocksource: add TI 32.768 Hz counter driver Felipe Balbi
2015-10-01 21:58 ` John Stultz
2015-10-01 21:59 ` Daniel Lezcano
2015-10-05 10:50 ` Tony Lindgren
2015-10-05 11:03 ` Tony Lindgren
2015-10-01 22:20 ` John Stultz
2015-10-01 22:30 ` Felipe Balbi
2015-09-29 20:44 ` [RFC/PATCH 10/11] arm: omap2: timer: limit hwmod usage to non-DT boots Felipe Balbi
2015-09-29 20:44 ` [RFC/PATCH 11/11] arm: boot: dts: omap: add missing default status for 32k counter Felipe Balbi
2015-09-30 8:15 ` Arnd Bergmann
2015-09-30 14:12 ` Felipe Balbi
2015-09-30 21:58 ` Arnd Bergmann
2015-10-05 17:52 ` Felipe Balbi
2015-10-05 19:41 ` Felipe Balbi
2015-10-06 8:08 ` Arnd Bergmann
2015-10-06 14:57 ` Felipe Balbi
2015-10-06 15:18 ` Tony Lindgren
2015-10-06 15:29 ` Felipe Balbi
2015-10-05 10:45 ` Tony Lindgren
2015-09-30 8:22 ` Arnd Bergmann [this message]
2015-09-30 14:13 ` [RFC/PATCH 00/11] arm: omap: counter32k rework Felipe Balbi
2015-09-30 14:42 ` Arnd Bergmann
2015-09-30 14:49 ` Arnd Bergmann
2015-09-30 14:57 ` Felipe Balbi
2015-09-30 15:03 ` Thierry Reding
2015-10-01 22:12 ` Daniel Lezcano
2015-10-05 10:55 ` Tony Lindgren
2015-10-05 11:03 ` Arnd Bergmann
2015-10-05 11:13 ` Tony Lindgren
2015-10-05 12:19 ` Arnd Bergmann
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