> > > 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.
It's a good idea to let us know about any inter-patch dependencies, so we may act accordingly. I'll remove this from my -next branch for now. -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- 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/