Re: [PATCH 06/35] mfd: ab8500-core: Sysfs chip id modification

From: Lee Jones
Date: Wed Feb 20 2013 - 03:13:23 EST


On Tue, 19 Feb 2013, Arnd Bergmann wrote:

> On Friday 15 February 2013, Lee Jones wrote:
> > struct ab8500 *ab8500;
> > + int chip_id = -EINVAL;
> >
> > ab8500 = dev_get_drvdata(dev);
> > - return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL);
> > + if(ab8500) {
> > + chip_id = ab8500->chip_id;
> > + if((is_ab8505(ab8500) || is_ab9540(ab8500)) && ab8500->version != 0xFF)
> > + chip_id = (ab8500->version << 8) | chip_id;
> > + }
> > + return sprintf(buf, "%#x\n", chip_id);
> > }
>
> What's the use of printing "ffffffea" for unknown versions here?

You mean instead of -EINVAL? No idea, Marcus?

--
Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org â Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/