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Date:	Thu, 22 May 2014 13:47:07 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Lee Jones <lee.jones@...aro.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 12:24:07 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.

	Arnd
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