From: broonie@opensource.wolfsonmicro.com (Mark Brown)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/9] ARM: SPMP8000: Add ADC driver
Date: Wed, 12 Oct 2011 15:42:52 +0100 [thread overview]
Message-ID: <20111012144251.GM3647@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <201110111724.48069.arnd@arndb.de>
On Tue, Oct 11, 2011 at 05:24:47PM +0200, Arnd Bergmann wrote:
> On Tuesday 11 October 2011, Mark Brown wrote:
> > I'm not sure that IIO isn't the kernel subsystem we're looking for here
> > - as I keep saying when this comes up it's just representing bare DACs
> > and ADCs pretty directly which looks like a generic subsystem to me.
> Possible, yes. Until now, IIO is a subsystem for user-level access
> not for kernel access though, so it's not the right place yet.
> If we decide to let IIO handle all ADC input, do you think it would
> also be the right place to do PWM output, rather than having a
> separate subsystem for that?
Off the top of my head I'd expect PWM to be a separate thing which could
optionally synthesize stuff onto an IIO device (bitbanging the PWM
essentially). The specialized PWM stuff tends to be "output this steady
state for an indefinite period" type interface rather than "here's a
batch of samples, output them".
next prev parent reply other threads:[~2011-10-12 14:42 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-09 16:36 Add support for the SPMP8000 SoC and Letcool board Zoltan Devai
2011-10-09 16:36 ` [PATCH 1/9] ARM: vic: Don't write to the read-only register VIC_IRQ_STATUS Zoltan Devai
2011-10-10 1:35 ` Linus Walleij
2011-10-10 13:59 ` Zoltan Devai
2011-10-09 16:36 ` [PATCH 2/9] ARM: SPMP8000: Add machine base files Zoltan Devai
2011-10-09 17:22 ` Jamie Iles
2011-10-10 11:36 ` Zoltan Devai
2011-10-10 11:52 ` Jamie Iles
2011-10-11 14:44 ` Arnd Bergmann
2011-10-16 14:10 ` Zoltan Devai
2011-10-16 15:57 ` Russell King - ARM Linux
2011-10-16 20:59 ` Arnd Bergmann
2011-10-16 20:52 ` Jean-Christophe PLAGNIOL-VILLARD
2011-10-17 11:44 ` Arnd Bergmann
2011-10-09 16:36 ` [PATCH 3/9] ARM: SPMP8000: Add clk support Zoltan Devai
2011-10-13 9:38 ` Russell King - ARM Linux
2011-10-16 14:16 ` Zoltan Devai
2011-10-17 12:15 ` Mark Brown
2011-10-18 10:18 ` Russell King - ARM Linux
2011-10-09 16:36 ` [PATCH 4/9] ARM: SPMP8000: Add ADC driver Zoltan Devai
2011-10-10 1:29 ` Linus Walleij
2011-10-10 9:42 ` Jonathan Cameron
2011-10-10 9:46 ` Jonathan Cameron
2011-10-10 10:00 ` Mark Brown
2011-10-10 11:42 ` Zoltan Devai
2011-10-10 11:44 ` Mark Brown
2011-10-11 14:17 ` Arnd Bergmann
2011-10-11 14:40 ` Mark Brown
2011-10-11 15:24 ` Arnd Bergmann
2011-10-11 15:39 ` Jonathan Cameron
2011-10-12 14:42 ` Mark Brown [this message]
2011-10-12 15:41 ` Jonathan Cameron
2011-10-13 9:47 ` Russell King - ARM Linux
2011-10-13 11:09 ` Linus Walleij
2011-10-13 11:35 ` Jonathan Cameron
2011-10-13 11:35 ` Mark Brown
2011-10-13 12:17 ` Russell King - ARM Linux
2011-10-13 14:19 ` Arnd Bergmann
2011-10-13 14:27 ` Mark Brown
2011-10-13 14:38 ` Mark Brown
2011-10-13 14:56 ` Arnd Bergmann
2011-10-13 16:25 ` Mark Brown
2011-10-09 16:36 ` [PATCH 5/9] ARM: SPMP8000: Add pinmux driver Zoltan Devai
2011-10-10 1:32 ` Linus Walleij
2011-10-10 8:01 ` Barry Song
2011-10-10 8:34 ` Linus Walleij
2011-10-09 16:36 ` [PATCH 6/9] ARM: SPMP8000: Add pwm driver Zoltan Devai
2011-10-10 1:50 ` Linus Walleij
2011-10-10 9:30 ` Sascha Hauer
2011-10-09 16:36 ` [PATCH 7/9] ARM: SPMP8000: Add dts file of SPMP8000 SoC and Letcool board Zoltan Devai
2011-10-10 8:54 ` Jamie Iles
2011-10-09 16:36 ` [PATCH 8/9] ARM: SPMP8000: Add support for the " Zoltan Devai
2011-10-11 14:09 ` Arnd Bergmann
2011-10-11 14:43 ` Zoltan Devai
2011-10-11 15:18 ` Arnd Bergmann
2011-10-13 9:54 ` Russell King - ARM Linux
2011-10-09 16:36 ` [PATCH 9/9] ARM: SPMP8000: Add Kconfig and Makefile entries to build the machine Zoltan Devai
2011-10-09 17:25 ` Jamie Iles
2011-10-10 1:43 ` Linus Walleij
2011-10-13 9:53 ` Russell King - ARM Linux
2011-10-10 8:55 ` Add support for the SPMP8000 SoC and Letcool board Jamie Iles
2011-10-10 12:00 ` Zoltan Devai
2011-10-10 12:03 ` Jamie Iles
2011-10-11 14:57 ` Arnd Bergmann
[not found] ` <1319040118-29773-1-git-send-email-zoss@devai.org>
2011-10-19 16:01 ` [PATCH v2 1/5] ARM: SPMP8000: Add machine base files Zoltan Devai
2011-10-19 19:15 ` Arnd Bergmann
2011-10-21 22:54 ` Russell King - ARM Linux
2011-10-23 21:47 ` Zoltan Devai
2011-10-23 21:37 ` Zoltan Devai
2011-10-24 9:13 ` Arnd Bergmann
2011-10-24 11:00 ` Jamie Iles
2011-11-02 13:29 ` Zoltan Devai
2011-11-03 15:08 ` Arnd Bergmann
2011-10-19 16:01 ` [PATCH v2 2/5] ARM: SPMP8000: Add clk support Zoltan Devai
2011-10-19 16:01 ` [PATCH v2 3/5] ARM: SPMP8000: Add clocksource and clockevent drivers Zoltan Devai
2011-10-19 16:01 ` [PATCH v2 4/5] ARM: SPMP8000: Add SPMP8000 SoC and Letcool board dts descriptions Zoltan Devai
2011-10-24 12:47 ` Rob Herring
2011-10-19 16:01 ` [PATCH v2 5/5] ARM: SPMP8000: Add Kconfig and Makefile entries Zoltan Devai
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