RE: [PATCH 2/3] PM: Skip PER previous state register read

2009-11-05 Thread kalle.jokiniemi
Hi Kevin, >-Original Message- >From: linux-omap-ow...@vger.kernel.org >[mailto:linux-omap-ow...@vger.kernel.org] On Behalf Of ext Kevin Hilman >Sent: 30. lokakuuta 2009 18:32 >To: Kalle Jokiniemi >Cc: linux-omap@vger.kernel.org >Subject: Re: [PATCH 2/3] PM: Sk

Re: [PATCH 2/3] PM: Skip PER previous state register read

2009-10-30 Thread Kevin Hilman
Kalle Jokiniemi writes: > According to measurements, reading the previous state of PER > domain after wfi takes ~11us on OPP2. > > Removed this unneccessary latency from cases where we know > PER power domain did not try to enter off mode. > > Signed-off-by: Kalle Jokiniemi Looks good, pulling

[PATCH 2/3] PM: Skip PER previous state register read

2009-10-21 Thread Kalle Jokiniemi
According to measurements, reading the previous state of PER domain after wfi takes ~11us on OPP2. Removed this unneccessary latency from cases where we know PER power domain did not try to enter off mode. Signed-off-by: Kalle Jokiniemi --- arch/arm/mach-omap2/pm34xx.c | 19 +-