Re: [PATCH] mmc: Fix read-only detection with JMicron 388 chip

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At Thu, 21 Apr 2011 13:36:03 -0400,
Chris Ball wrote:
> 
> Hi Takashi,
> 
> On Thu, Apr 21 2011, Takashi Iwai wrote:
> >> I don't like overwriting ops here -- it's too magical, and now we have
> >> to maintain the ops table in two places.  A quirk seems justified here,
> >> even though we're trying to reduce them in general.
> >
> > Well, I also used quirk bit in my very first version I worked for
> > 2.6.32 kernel.  But when I looked at 2.6.39, quirks are almost full --
> > only the last one bit is left for bit 31.  So I didn't want to finish
> > it :)
> >
> >>  Can anyone find a better solution?
> >  
> > One way would be to copy the ops table itself in struct sdhci_host
> > instead of keeping the ops table pointer.  Then you can overwrite only
> > the specific op in each probe_slot callback.
> 
> I think I'd rather not touch ops at all and keep the code simple --
> if you don't mind, please post a version with quirks, and I'll work
> on freeing up a few bits.

OK, I'll send shortly.


Takashi
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