R5C822 SD-card reader not working under kernels 3.7.x

R5C822 SD-card reader not working under kernels 3.7.x

[Łukasz Maśko]

Hello.
I hope, that this is the good plate to write to :-) This is my first post to 
this forum.

I have a Dell D430 laptop, which has as SD(HC) card reader using Ricoh chip:

02:01.2 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host 
Adapter (rev 18) (prog-if 01)
        Subsystem: Dell Device 0201
        Flags: medium devsel, IRQ 18
        Memory at efbff700 (32-bit, non-prefetchable) [size=256]
        Capabilities: [80] Power Management version 2

I've been using it for a very long time. The last kernel, where it works 
(from the ones I've been using) is 3.5.7. Then, I've tried kernel 3.6.10 and 
then 3.7.{1,2} and the reader is not working there. Simply - nothing happens 
after I inserd a card.

For kernels up to 3.5.7 I get some "unwanted" messages like this one:

[128997.817307] sdhci-pci 0000:02:01.2: could not set regulator OCR (-22)

but then everything works. So, although there are such "errors", I'd prefere 
such behavior to not working at all :-/ I've tried to read some threads from 
the archive of the list, but all I've found was that it was related to 
"regulator". It tells me nothing and does not help to make my reader work.

Is it possible to make it somehow work at the current state of kernel? If 
not, do you plan to fix it? I can provide you with necessary information, of 
course.
-- 
Łukasz Maśko                                                            _o)
Lukasz.Masko(at)ipipan.waw.pl                                           /\\
Registered Linux User #61028                                           _\_V
Ubuntu: staroafrykańskie słowo oznaczające "Nie umiem zainstalować Debiana"