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

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Message-Id: <201203202202.12060.arnd@arndb.de>
Date:	Tue, 20 Mar 2012 22:02:11 +0000
From:	Arnd Bergmann <arnd@...db.de>
To:	Bernhard Walle <walle@...science.de>
Cc:	sameo@...ux.intel.com, linux-kernel@...r.kernel.org,
	linux-omap@...r.kernel.org
Subject: Re: [PATCH] mfd: Add TWL4030 PWM driver

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.

	Arnd
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