On Mon, Feb 24, 2014 at 04:10:42PM +0000, Lee Jones wrote: > > On the wm5102 the register patches are applied manually, rather than by > > the regmap core. This application is wrapped in calls to > > regcache_cache_bypass. However, this is dangerous as other threads may > > be accessing the hardware at the same time as the pm_runtime operations > > and if they do so during the period whilst cache_bypass is enabled those > > writes will miss the cache when they shouldn't. > > > > Apply the register patch using the new regmap_apply_patch function to > > avoid this problem. Also remove the call to regcache_cache_bypass from > > the hardware patch application as it is unneeded there and creates a > > similar window for writes to miss the cache. > > > > Signed-off-by: Charles Keepax <ckee...@opensource.wolfsonmicro.com> > > --- > > drivers/mfd/arizona-core.c | 4 ---- > > drivers/mfd/wm5102-tables.c | 19 ++----------------- > > 2 files changed, 2 insertions(+), 21 deletions(-) > > Applied, thanks.
Apologies this patch depends on the previous patch I am still working Mark's comments for. So this can't really be applied at the moment. Thanks, Charles -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
