11 Feb
2011
11 Feb
'11
3:21 p.m.
On Fri, Feb 11, 2011 at 03:18:26PM +0000, Mark Brown wrote:
On Fri, Feb 11, 2011 at 02:54:01PM +0000, Dimitris Papastamos wrote:
This is primarily needed to avoid writing back to the cache whenever we are syncing the cache with the hardware. This gives a performance benefit especially for large register maps.
Hrm, this is a rather large and invasive patch to be applying as part of a bug fix for a specific driver this late in the release process. Can we do something driver specific for the 2.6.38 release?
Em, make WM8994_POWER_MANAGEMENT_5 a volatile register? That is sort of a hack but I can't think of anything else.
Thanks, Dimitris