Messages in this thread | | | From | Haojian Zhuang <> | Date | Mon, 14 Mar 2011 05:34:08 -0700 | Subject | RE: [PATCH] mfd: pxa-w1: MFD driver for PXA 1wire control + DS1WM chip |
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>-----Original Message----- >From: Samuel Ortiz [mailto:sameo@linux.intel.com] >Sent: 2011年3月14日 7:29 PM >To: Haojian Zhuang >Cc: johnpol@2ka.mipt.ru; a.zummo@towertech.it; lrg@slimlogic.co.uk; >broonie@opensource.wolfsonmicro.com; dmitry.torokhov@gmail.com; >dtor@mail.ru; rpurdie@rpsys.net; linux-kernel@vger.kernel.org >Subject: Re: [PATCH] mfd: pxa-w1: MFD driver for PXA 1wire control + >DS1WM chip > >Hi Haojian, > >On Mon, Mar 07, 2011 at 11:43:20PM +0800, Haojian Zhuang wrote: >> This driver provides registers and IRQ of PXA3xx chips to the ds1wm >driver. >Why is this an MFD driver ? > >Cheers, >Samuel. > >-- >Intel Open Source Technology Centre >http://oss.intel.com/
Hi Samuel,
Because there's already a DS1WM driver in drivers/w1/masters/ds1wm.c. In PXA silicons, W1 controler is compatible with this driver. So we implement it as MFD driver, like htc-pasic3.c.
Best Regards Haojian
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