linux-kernel - Re: [RESEND PATCH V4 3/3] mfd: da9063: MFD support for OnKey driver

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Date:	Tue, 9 Jun 2015 07:51:01 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	S Twiss <stwiss.opensource@...semi.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	DT <devicetree@...r.kernel.org>,
	David Dajun Chen <david.chen@...semi.com>,
	INPUT <linux-input@...r.kernel.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Mark Rutland <mark.rutland@....com>,
	Pawel Moll <pawel.moll@....com>,
	Rob Herring <robh+dt@...nel.org>,
	Support Opensource <support.opensource@...semi.com>
Subject: Re: [RESEND PATCH V4 3/3] mfd: da9063: MFD support for OnKey driver

On Mon, 08 Jun 2015, Dmitry Torokhov wrote:

> On Tue, May 19, 2015 at 11:32:45AM +0100, S Twiss wrote:
> > From: Steve Twiss <stwiss.opensource@...semi.com>
> > 
> > Add MFD support for the DA9063 OnKey driver
> > 
> > The function da9063_clear_fault_log() is added to mitigate the case of a
> > hardware power-cut after a long-long OnKey press. Although there is no
> > software intervention in this case (by definition) such a shutdown would
> > cause persistent information within the DA9063 FAULT_LOG that would be
> > available during the next device restart.
> > 
> > Clearance of this persistent register must be completed after such a
> > hardware power-cut operation has happened so that the FAULT_LOG does not
> > continue with previous values. The clearance function has been added here
> > in the kernel driver because wiping the fault-log cannot be counted on
> > outside the Linux kernel.
> > 
> > Acked-by: Lee Jones <lee.jones@...aro.org>
> > 
> > Signed-off-by: Steve Twiss <stwiss.opensource@...semi.com>
> 
> ...
> 
> > diff --git a/include/linux/mfd/da9063/pdata.h b/include/linux/mfd/da9063/pdata.h
> > index 95c8742..612383b 100644
> > --- a/include/linux/mfd/da9063/pdata.h
> > +++ b/include/linux/mfd/da9063/pdata.h
> > @@ -103,6 +103,7 @@ struct da9063;
> >  struct da9063_pdata {
> >  	int				(*init)(struct da9063 *da9063);
> >  	int				irq_base;
> > +	bool				key_power;
> >  	unsigned			flags;
> >  	struct da9063_regulators_pdata	*regulators_pdata;
> >  	struct led_platform_data	*leds_pdata;
> 
> I need this bit of pdata to merge the OnKey driver... Lee, any chance
> you could drop it from the patch in your tree?

Consider it done.

> Alternatively, can you pick the OnKey driver (the latest version is
> below)?
> 
> Thanks.
> 

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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