Messages in this thread | | | Date | Wed, 5 Oct 2011 12:43:06 -0400 | From | Josh Boyer <> | Subject | Re: [PATCH] mmc: Always check for lower base frequency quirk for Ricoh 1180:e823 |
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On Wed, Oct 05, 2011 at 11:27:01AM -0500, Manoj Iyer wrote: > On Wed, 5 Oct 2011, Josh Boyer wrote: > > >Commit 15bed0f2f added a quirk for the e823 Ricoh card reader to lower the > >base frequency. However, the quirk first checks to see if the proprietary > >MMC controller is disabled, and returns if so. On some devices, such as the > >Lenovo X220, the MMC controller is already disabled by firmware it seems, > > It is possible that the newer firmware from Lenovo disables the MMC > controller. When the patch was done, these laptops had just been > announced, so they had a very early version of the firmware (ver > 1.02 iirc).
Seems so. The X220 laptop I debugged this on shows:
[jwboyer@zod linux-2.6]$ cat /sys/devices/virtual/dmi/id/bios_version 8DET42WW (1.12 )
josh
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