Re: [PATCH v2 16/16] i2c: designware: Convert to use unified device property API

From: Mika Westerberg
Date: Tue Dec 01 2015 - 04:08:54 EST


On Mon, Nov 30, 2015 at 08:58:58PM +0100, Wolfram Sang wrote:
> On Mon, Nov 30, 2015 at 05:11:44PM +0200, Andy Shevchenko wrote:
> > From: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
> >
> > With ACPI _DSD (introduced in ACPI v5.1) it is now possible to pass device
> > configuration information from ACPI in addition to DT. In order to support
> > this, convert the driver to use the unified device property accessors
> > instead of DT specific.
> >
> > Change to ordering a bit so that we first try platform data and if that's
> > not available look from device properties. ACPI *CNT methods are then used
> > as last resort to override everything else.
> >
> > Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> > Acked-by: Jarkko Nikula <jarkko.nikula@xxxxxxxxxxxxxxx>
>
> What is the bug fix here described in the cover letter?

The bug fix is actually in patch [14/16] "mfd: intel-lpss: Pass SDA hold
time to I2C host controller driver".

> And shall this go via I2C or via the rest of the series?

Either way works. This should compile and work fine without the rest but
of course fix for the issue with Lenovo Yoga 900 toucpad still requires
all the patches.
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