Messages in this thread | | | Date | Thu, 10 Jan 2013 15:57:31 -0800 | Subject | Re: [REPOST PATCH v3 1/4] mmc: dw_mmc: Add "disable-wp" device tree property | From | Doug Anderson <> |
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Hi,
A followup as I did more investigation here...
On Thu, Jan 10, 2013 at 3:23 PM, Doug Anderson <dianders@chromium.org> wrote: > Olof, > > Thanks for your comments. > > On Thu, Jan 10, 2013 at 3:01 PM, Olof Johansson <olof@lixom.net> wrote: >> >> The previous code used the controller-common quirk field to set a >> per-controller DW_MCI_QUIRK_NO_WRITE_PROTECT. Is there really need to >> do this per-slot? And if so, please explain in the commit message why >> there is need for a brand new quirk for the same functionality. > > I'm happy to move back to using a per-controller quirk here--it > simplifies the code quite a bit since it can use all of the > preexisting quirks code. I originally coded it up as per-slot since > generally each slot needs its own write-protect line. Without ever > seeing any hardware using multiple slots per controller I can't say > how common this would be, so it may be overkill to handle that > situation.
Actually, it looks like the per-controller DW_MCI_QUIRK_NO_WRITE_PROTECT was added at the same time as the code using it was added to 'drivers/mmc/host/dw_mmc-exynos.c'. Since this patch series removes the code from dw_mmc-exynos.c I can also remove the controller-level quirk.
...I'll plan to spin a new rev tomorrow that leaves the 'no write protect' quirk at the slot level but removes the old controller-level quirk. :)
-Doug
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