linux-kernel - Re: [PATCH] mfd: Add TWL4030 PWM driver

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Date:	Wed, 21 Mar 2012 07:15:29 +0100
From:	Bernhard Walle <bernhard@...lle.de>
To:	Arnd Bergmann <arnd@...db.de>
CC:	Bernhard Walle <walle@...science.de>, sameo@...ux.intel.com,
	linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org
Subject: Re: [PATCH] mfd: Add TWL4030 PWM driver

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@...science.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
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