[PATCH 3/5] Staging/iio/adc/touchscreen/MXS: add i.MX23 support to the LRADC driver

Jürgen Beisert jbe at pengutronix.de
Tue Sep 10 12:58:27 UTC 2013


Hi Marek,

On Tuesday 10 September 2013 10:22:36 Marek Vasut wrote:
> > On Monday 09 September 2013 18:04:19 Marek Vasut wrote:
> > > > Distinguish i.MX23 and i.MX28 at runtime and do the same for both SoC
> > > > at least for the 4 wire touchscreen.
> > > >
> > > > Signed-off-by: Juergen Beisert <jbe at pengutronix.de>
> > > > CC: linux-arm-kernel at lists.infradead.org
> > > > CC: devel at driverdev.osuosl.org
> > > > CC: Marek Vasut <marex at denx.de>
> > > > CC: Fabio Estevam <fabio.estevam at freescale.com>
> > > > CC: Jonathan Cameron <jic23 at cam.ac.uk>
> > >
> > > This patch seems to combine two things -- register access rework AND
> > > adjustment of the driver for MX23 touchscreen.
> >
> > It reworks the register access to avoid the i.MX23/i.MX28 runtime
> > decision all over the code again and again. This is what Dan has
> > recommended in his comment.
>
> Sure, but this change should be separated from fixing the touchscreen
> support then.

Hmm, but there is no need to rework the register access until the i.MX23 
touchscreen support is added. So this patch does both at the same time.

> > > Btw the MX23 ADC was already supported,
> >
> > No. This patch is the first in this series which brings in the specific
> > register bits, because the ADC units in the i.MX23 and i.MX28 differ.
> >
> > > so this "add i.MX23 support" commit message is not accurate.
> >
> > Hmmm, what else do you think should I write?
>
> You're just correcting the touchscreen support, no ?

Okay, will change the subject.

Regards,
Juergen

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