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From: Linus Walleij <linus.walleij@linaro.org>
To: fthain@telegraphics.com.au
Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
	funaho@jurai.org, schwab@linux-m68k.org,
	Arnd Bergmann <arnd@arndb.de>,
	schivers@csc.com.au, Thomas Gleixner <tglx@linutronix.de>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	schmitzmic@gmail.com, John Stultz <john.stultz@linaro.org>,
	linux-m68k@lists.linux-m68k.org,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [RFC PATCH v2 10/14] m68k: mac: Convert to clocksource API
Date: Tue, 20 Nov 2018 09:15:42 +0100	[thread overview]
Message-ID: <CACRpkdZdJDYaOi1HeMiS2hkjOf0gjQphGXy-Ka+m=1LbDCXPfA@mail.gmail.com> (raw)
In-Reply-To: <c235d0b21a648d329668f1ab436161c09d96e875.1542589838.git.fthain@telegraphics.com.au>

On Mon, Nov 19, 2018 at 2:22 AM Finn Thain <fthain@telegraphics.com.au> wrote:

> Add a platform clocksource by adapting the existing arch_gettimeoffset
> implementation.
>
> Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
> Acked-by: Linus Walleij <linus.walleij@linaro.org>
> Tested-by: Stan Johnson <userm57@yahoo.com>

As noted for the Amiga CIA (which is pretty much a sibling to this
MOS 6522 VIA) this chip also has two counters and could use one
as clocksource and the other as clock event.

Again I bet this is just using one timer out of habit.

It will be an easy feat to make a clean clocksource+clock event
for this hardware as well once this refactoring is complete.

Yours,
Linus Walleij

  reply	other threads:[~2018-11-20  8:16 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-19  1:10 [RFC PATCH v2 00/14] m68k: Drop arch_gettimeoffset and adopt clocksource API Finn Thain
2018-11-19  1:10 ` [RFC PATCH v2 09/14] m68k: hp300: Remove hp300_gettimeoffset() Finn Thain
2018-11-20  9:09   ` Kars de Jong
2018-11-20 23:13     ` Finn Thain
2018-11-21  8:10       ` Geert Uytterhoeven
2018-11-21  8:41         ` Finn Thain
2018-11-21  8:55           ` Geert Uytterhoeven
2018-11-21  9:47             ` Finn Thain
2018-11-21 10:02               ` Geert Uytterhoeven
2018-11-21 11:14                 ` Finn Thain
2018-11-25  1:15                   ` Finn Thain
2018-11-25  2:44                     ` Michael Schmitz
2018-11-25  3:25                       ` Finn Thain
2018-11-21  8:22       ` Kars de Jong
2018-11-19  1:10 ` [RFC PATCH v2 07/14] m68k: atari: Convert to clocksource API Finn Thain
2018-11-19  8:35   ` Michael Schmitz
2018-11-20  8:10   ` Linus Walleij
2018-11-20  8:19     ` Geert Uytterhoeven
2018-11-20  9:30     ` Finn Thain
2018-11-20  9:53       ` Linus Walleij
2018-11-20 10:02     ` Andreas Schwab
2018-11-24  2:03       ` Michael Schmitz
2018-11-24  3:08         ` Finn Thain
2018-11-19  1:10 ` [RFC PATCH v2 08/14] m68k: bvme6000: " Finn Thain
2018-11-19  1:10 ` [RFC PATCH v2 11/14] m68k: mvme147: " Finn Thain
2018-11-19  1:10 ` [RFC PATCH v2 10/14] m68k: mac: " Finn Thain
2018-11-20  8:15   ` Linus Walleij [this message]
2018-11-20  9:00     ` Finn Thain
2018-11-20  9:59       ` Linus Walleij
2018-11-19  1:10 ` [RFC PATCH v2 04/14] m68k: apollo, q40, sun3, sun3x: Remove arch_gettimeoffset implementations Finn Thain
2018-11-19  1:10 ` [RFC PATCH v2 01/14] m68k: Call timer_interrupt() with interrupts disabled Finn Thain
2018-11-19  1:10 ` [RFC PATCH v2 03/14] m68k: mac: Clean up unused timer definitions Finn Thain
2018-11-20  1:02   ` Finn Thain
2018-11-19  1:10 ` [RFC PATCH v2 12/14] m68k: mvme147: Handle timer counter overflow Finn Thain
2018-11-19  1:10 ` [RFC PATCH v2 13/14] m68k: mvme16x: Convert to clocksource API Finn Thain
2018-11-19  1:10 ` [RFC PATCH v2 02/14] m68k: mac: Fix VIA timer counter accesses Finn Thain
2018-11-19  1:10 ` [RFC PATCH v2 06/14] m68k: amiga: Convert to clocksource API Finn Thain
2018-11-20  8:04   ` Linus Walleij
2018-11-19  1:10 ` [RFC PATCH v2 05/14] m68k: Drop ARCH_USES_GETTIMEOFFSET Finn Thain
2018-11-19  1:10 ` [RFC PATCH v2 14/14] m68k: mvme16x: Handle timer counter overflow Finn Thain

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