From: Bernhard Walle <bernhard@bwalle.de>
To: linux-kernel@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Subject: Re: [PATCH] mfd: Add TWL4030 PWM driver
Date: Wed, 21 Mar 2012 07:15:29 +0100 [thread overview]
Message-ID: <4F697201.1090206@bwalle.de> (raw)
In-Reply-To: <201203202202.12060.arnd@arndb.de>
Am 20.03.12 23:02, schrieb Arnd Bergmann:
> On Tuesday 20 March 2012, Bernhard Walle wrote:
>>
>> This PWM driver uses the PWM of the TWL4030. The driver for the TWL6030
>> PWM has been used as mode, but the PWM registers are different.
>>
>> The driver can be used and has been tested in conjunction with
>> pwm-backlight to control a backlight LED of a LCD touch screen.
>>
>> Signed-off-by: Bernhard Walle <walle@corscience.de>
>
> Since it's too late for v3.4 now and we will get a new pwm
> subsystem in v3.5, I suggest you change the driver to work
> register with that subsystem instead of just using the old
> header file. Note that drivers/mfd is not really the right
> place anyway, because this is not a multifunction driver but
> just one device driver that happens to be a slave of an mfd.
Does that new subsystem already exist in some tree?
Regards,
Bernhard
WARNING: multiple messages have this Message-ID (diff)
From: Bernhard Walle <bernhard@bwalle.de>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Bernhard Walle <walle@corscience.de>,
sameo@linux.intel.com, linux-kernel@vger.kernel.org,
linux-omap@vger.kernel.org
Subject: Re: [PATCH] mfd: Add TWL4030 PWM driver
Date: Wed, 21 Mar 2012 07:15:29 +0100 [thread overview]
Message-ID: <4F697201.1090206@bwalle.de> (raw)
In-Reply-To: <201203202202.12060.arnd@arndb.de>
Am 20.03.12 23:02, schrieb Arnd Bergmann:
> On Tuesday 20 March 2012, Bernhard Walle wrote:
>>
>> This PWM driver uses the PWM of the TWL4030. The driver for the TWL6030
>> PWM has been used as mode, but the PWM registers are different.
>>
>> The driver can be used and has been tested in conjunction with
>> pwm-backlight to control a backlight LED of a LCD touch screen.
>>
>> Signed-off-by: Bernhard Walle <walle@corscience.de>
>
> Since it's too late for v3.4 now and we will get a new pwm
> subsystem in v3.5, I suggest you change the driver to work
> register with that subsystem instead of just using the old
> header file. Note that drivers/mfd is not really the right
> place anyway, because this is not a multifunction driver but
> just one device driver that happens to be a slave of an mfd.
Does that new subsystem already exist in some tree?
Regards,
Bernhard
next prev parent reply other threads:[~2012-03-21 6:15 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-20 16:48 [PATCH] mfd: Add TWL4030 PWM driver Bernhard Walle
2012-03-20 22:02 ` Arnd Bergmann
2012-03-21 6:15 ` Bernhard Walle [this message]
2012-03-21 6:15 ` Bernhard Walle
2012-03-21 8:39 ` Arnd Bergmann
2012-03-21 8:48 ` Thierry Reding
2012-03-21 10:03 ` Arnd Bergmann
2012-03-21 10:28 ` Thierry Reding
2012-03-21 11:31 ` Sascha Hauer
2012-03-21 16:55 ` Grazvydas Ignotas
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