On Wed, Sep 12, 2012 at 03:19:18AM +0000, Huang Changming-R66093 wrote:
[...]
> I don't think it is the best way to do it.  For the VVN2.2 or older,
> some silicon support this feature (mpc8536 and p2020), but other
> silicones don't support it (e.g. p4080, p102x).  Though, the current
> p5/p4/p3 has supported this feature, can we sure the future silicon
> support it?  So I think the best way is to specify it in device tree
> as 'sdhci,auto-cmd12'

In addition to your current patches, you could just add another patch
that blacklists affected SOC revisions based on the info from PVR/SVR.

For example, see gfar_detect_errata() in
drivers/net/ethernet/freescale/gianfar.c.

That way you could help users that don't have the newest device trees.

Thanks,
Anton.
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