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Date:	Thu, 22 May 2014 13:53:52 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Christophe Kerello <christophe.kerello@...com>,
	computersforpeace@...il.com, linux-mtd@...ts.infradead.org
Subject: Re: [PATCH 09/10] mtd: st_spi_fsm: Provide mask to obtain correct boot device pins

On Thursday 22 May 2014 12:52:16 Lee Jones wrote:
> > On Thursday 22 May 2014 12:24:07 Lee Jones wrote:
> > > +       /* Mask to apply on boot_device_reg */
> > > +       ret = of_property_read_u32(np, "st,boot-device-msk", &boot_device_msk);
> > > +       if (ret)
> > > +               goto boot_device_fail;
> > > +
> > > 
> > 
> > The binding defines this property as "optional", but the driver fails
> > here if it's not provided. I suggest you add a default value here so you
> > can deal with existing dts. The default should be documented in
> > the binding as well.
> 
> The property is optional. It doesn't fail completely, merely skips the
> boot device check and falls back to using SPI.  I can update the
> documentation to this effect though, no problem.

Ah, I see, thanks for the explanation!

	Arnd
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