Re: [RESEND PATCH V4 3/3] mfd: da9063: MFD support for OnKey driver
From: Lee Jones
Date: Tue Jun 09 2015 - 02:51:17 EST
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@xxxxxxxxxxx>
> >
> > 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@xxxxxxxxxx>
> >
> > Signed-off-by: Steve Twiss <stwiss.opensource@xxxxxxxxxxx>
>
> ...
>
> > 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 â Open source software for ARM SoCs
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