On 05/05/16 04:45, Garlic Tseng wrote:

On Wed, 2016-05-04 at 17:43 +0100, Mark Brown wrote:

quoted

On Fri, Apr 29, 2016 at 09:00:42PM +0800, Garlic Tseng wrote:

quoted

  .../{mtk-afe-pcm.c => mt8173/mt8173-afe-pcm.c}     | 488 ++++++++++-----------

So there's going to be no code sharing at all between this and any other
Mediatek chips?  That seems very surprising, it'd suggest that the
hardware designers were creating a new design completely from scratch
each time which doesn't seem all that likely.  This is an unusual way of
organizing things and we need a much clearer explanation of what's going
on here.

MT8173 and MT2701 are from different product lines so the register
control sequences are very different. If another driver for 8173-like
(or 2701-like) chip go upstream it shall share some common code with the
relatively driver indeed. However I think MT8173 and MT2701 can't share
the platform driver or a lot of "if MT8173 else MT2701" will mess up the
code.

What about the other SoCs we have some minimal support for: mt6589, 
mt8135, mt6592, mt6580, mt7323, mt8127?

A quick glance at the datasheets showed me, that mt6589 and at least 
mt8127 have quite similar register offsets. So I suppose there is some 
common code actually.

Regards,
Matthias