From: "Hemanth V" <hemanthv@ti.com>
To: "Arun Murthy" <arun.murthy@stericsson.com>, <lars@metafoo.de>,
"Andrew Morton" <akpm@linux-foundation.org>,
<kernel@pengutronix.de>, <philipp.zabel@gmail.com>,
<robert.jarzmik@free.fr>, <marek.vasut@gmail.com>,
<eric.y.miao@gmail.com>, <rpurdie@rpsys.net>,
<sameo@linux.intel.com>, <kgene.kim@samsung.com>,
<linux-omap@vger.kernel.org>
Cc: <linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <linux-mips@linux-mips.org>,
"Arun MURTHY" <arun.murthy@stericsson.com>,
<STEricsson_nomadik_linux@list.st.com>
Subject: Re: [PATCH 1/7] pwm: Add pwm core driver
Date: Tue, 28 Sep 2010 18:23:24 +0530 [thread overview]
Message-ID: <040c01cb5f0c$29bcb3b0$LocalHost@wipblrx0099946> (raw)
In-Reply-To: <1285670134-18063-2-git-send-email-arun.murthy@stericsson.com>
----- Original Message -----
From: "Arun Murthy" <arun.murthy@stericsson.com>
> The existing pwm based led and backlight driver makes use of the
> pwm(include/linux/pwm.h). So all the board specific pwm drivers will
> be exposing the same set of function name as in include/linux/pwm.h.
> As a result build fails in case of multi soc environments where each soc
> has a pwm device in it.
This seems very specific to ST environment, looking at the driver list from
( [PATCH 4/7] pwm: Align existing pwm drivers with pwm-core ) it seems
most multi SOC environments might support PWM in either one of the SOC.
arch/arm/plat-mxc/pwm.c
arch/arm/plat-pxa/pwm.c
arch/arm/plat-samsung/pwm.c
arch/mips/jz4740/pwm.c
drivers/mfd/twl6030-pwm.c
Unless people have examples of other SOCs which might use this,
the better approach might be to go for a custom driver rather than changing
the framework.
Thanks
Hemanth
next prev parent reply other threads:[~2010-09-28 12:55 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-28 10:35 [PATCH 0/7] PWM core driver for pwm based led and backlight driver Arun Murthy
2010-09-28 10:35 ` [PATCH 1/7] pwm: Add pwm core driver Arun Murthy
2010-09-28 12:53 ` Hemanth V [this message]
2010-09-28 13:06 ` Samuel Ortiz
2010-09-28 13:35 ` Felipe Balbi
2010-09-28 10:35 ` [PATCH 2/7] backlight:pwm: add an element 'name' to platform data Arun Murthy
2010-09-28 10:35 ` [PATCH 3/7] leds: pwm: add a new " Arun Murthy
2010-09-28 10:43 ` Sergei Shtylyov
2010-09-28 10:48 ` Arun MURTHY
2010-09-28 10:35 ` [PATCH 4/7] pwm: Align existing pwm drivers with pwm-core driver Arun Murthy
2010-09-28 10:35 ` [PATCH 5/7] platform: Update the pwm based led and backlight platform data Arun Murthy
2010-09-28 10:35 ` [PATCH 6/7] pwm: move existing pwm driver to drivers/pwm Arun Murthy
2010-09-28 10:35 ` [PATCH 7/7] pwm: Modify backlight and led Kconfig aligning to pwm core Arun Murthy
[not found] <1285659648-21409-1-git-send-email-arun.murthy@stericsson.com>
[not found] ` <1285659648-21409-2-git-send-email-arun.murthy@stericsson.com>
[not found] ` <4CA1AD2B.8000905@metafoo.de>
[not found] ` <F45880696056844FA6A73F415B568C69532DC2FB6B@EXDCVYMBSTM006.EQ1STM.local>
[not found] ` <4CA1BC16.3020702@metafoo.de>
[not found] ` <F45880696056844FA6A73F415B568C69532DC2FC60@EXDCVYMBSTM006.EQ1STM.local>
2010-09-28 21:04 ` [PATCH 1/7] pwm: Add pwm core driver Lars-Peter Clausen
2010-09-29 4:49 ` Arun MURTHY
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