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Groups > linux.kernel > #1199280
| From | Scott Wood <scottwood@freescale.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 3/4] powerpc: pm: add EPU FSM configuration for deep sleep |
| Date | 2015-08-03 23:30 +0200 |
| Message-ID | <pTvt2-6Ny-49@gated-at.bofh.it> (permalink) |
| References | <pSi4N-5XK-3@gated-at.bofh.it> <pSt9T-5yr-3@gated-at.bofh.it> <pSt9T-5yr-1@gated-at.bofh.it> <pTvt2-6Ny-51@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Mon, 2015-08-03 at 20:01 +0800, Chenhui Zhao wrote: > On Sat, Aug 1, 2015 at 8:41 AM, Scott Wood <scottwood@freescale.com> > wrote: > > On Fri, 2015-07-31 at 20:53 +0800, Chenhui Zhao wrote: > > > In the last stage of deep sleep, software will trigger a Finite > > > State Machine (FSM) to control the hardware precedure, such as > > > board isolation, killing PLLs, removing power, and so on. > > > > > > When the system is waked up by an interrupt, the FSM controls the > > > hardware to complete the early resume precedure. > > > > > > This patch configure the EPU FSM preparing for deep sleep. > > > > > > Signed-off-by: Chenhui Zhao <chenhui.zhao@freescale.com> > > > --- > > > arch/powerpc/platforms/85xx/Makefile | 2 +- > > > arch/powerpc/platforms/85xx/sleep_fsm.c | 256 > > > ++++++++++++++++++++++++++++++++ > > > arch/powerpc/platforms/85xx/sleep_fsm.h | 104 +++++++++++++ > > > 3 files changed, 361 insertions(+), 1 deletion(-) > > > create mode 100644 arch/powerpc/platforms/85xx/sleep_fsm.c > > > create mode 100644 arch/powerpc/platforms/85xx/sleep_fsm.h > > > > When I asked why this was in drivers/platform[1], you said it was to > > share > > with LS1, and that the values used were the same -- so why did you > > move it to > > arch/powerpc? > > There are some changes. LS1 will use PSCI (Power State Coordination > Interface) to implement deep sleep. So these code just used by PowerPC. Then remove the comment about the values being usable on ls1021. -Scott -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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Re: [PATCH 3/4] powerpc: pm: add EPU FSM configuration for deep sleep Scott Wood <scottwood@freescale.com> - 2015-08-01 02:50 +0200 Re: [PATCH 3/4] powerpc: pm: add EPU FSM configuration for deep sleep Scott Wood <scottwood@freescale.com> - 2015-08-03 23:30 +0200
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