Subject: Re: [RFC][PATCH] ibm_newemac: PowerPC 440EP/440GR EMAC PHY clock workaround

From: Benjamin Herrenschmidt <[email-masked]>
Date: Thu, 28 Feb 2008 18:54:59 +1100

On Tue, 2008-02-26 at 09:02 -0600, Josh Boyer wrote:
> Seems the code will do the right thing since everything is using
> flags.  I suppose my question can be withdrawn.  It is slightly
> confusing to do it that way though.  Perhaps a function to do
> read-modify-writes on DCRs would be welcome.  dcr_modify anyone?

Yup, we probably want to expose a dcri_clrset(), though I would also
expose then __mtdcri/__mfdcri (non locked version) and the spinlock in
case somebody wants to do something fancy.

Cheers,
Ben.