On 02/28/2016 09:32 PM, Yaniv Gardi wrote: > We put the UFS device in sleep state & UFS link in hibern8 state during > runtime suspaned. After this we put all the UFS rails in low power > modes immediately but it seems some devices may still draw more than > sleep current from UFS rails (especially from VCCQ rail) atleast for > 500us. > To avoid this situation, this change adds 2ms delay before putting > these UFS rails in LPM mode. > > Reviewed-by: Gilad Broner <gbroner@xxxxxxxxxxxxxx> > Signed-off-by: Subhash Jadavani <subhashj@xxxxxxxxxxxxxx> > Signed-off-by: Yaniv Gardi <ygardi@xxxxxxxxxxxxxx> > > --- > drivers/scsi/ufs/ufs_quirks.c | 4 ++++ > drivers/scsi/ufs/ufs_quirks.h | 11 ++++++++++- > drivers/scsi/ufs/ufshcd.c | 10 ++++++++++ > 3 files changed, 24 insertions(+), 1 deletion(-) > Reviewed-by: Hannes Reinecke <hare@xxxxxxx> Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@xxxxxxx +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg) -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
