[0/8] Improve PM for omap4 devices

Message

Tony Lindgren Oct. 10, 2019, 12:12 a.m. UTC

Hi all,

We've had core oswr (open switch retention) disabled for a while now for
omap4 devices because of all kind of GPIO issues it caused with bootloaders
that configured per and core LOGICRETSTATE bits.

With all the recent GPIO fixes, these issues are now gone, and we can enable
per and core oswr again.

By adding the voltage controller data for droid4, we can get it idle at
something like 40 to 50 mW for the whole device with LCD blanked, and USB and
modem shut down.

Regards,

Tony


Tony Lindgren (8):
  ARM: OMAP2+: Remove unused wakeup_cpu
  ARM: OMAP2+: Drop bogus wkup domain oswr setting
  ARM: OMAP2+: Remove bogus warnings for machines without twl PMIC
  ARM: OMAP2+: Update 4430 voltage controller operating points
  ARM: OMAP2+: Configure voltage controller for cpcap
  ARM: OMAP2+: Allow per oswr for omap4
  ARM: OMAP2+: Allow core oswr for omap4
  ARM: OMAP2+: Initialize voltage controller for omap4

 arch/arm/mach-omap2/Makefile              |   5 +
 arch/arm/mach-omap2/control.h             |   1 +
 arch/arm/mach-omap2/omap-mpuss-lowpower.c |   2 -
 arch/arm/mach-omap2/omap_twl.c            |   8 +-
 arch/arm/mach-omap2/opp4xxx_data.c        |  16 +-
 arch/arm/mach-omap2/pm.c                  |   1 +
 arch/arm/mach-omap2/pm.h                  |  14 ++
 arch/arm/mach-omap2/pm44xx.c              |  13 +-
 arch/arm/mach-omap2/pmic-cpcap.c          | 265 ++++++++++++++++++++++
 arch/arm/mach-omap2/vc.c                  |  20 ++
 10 files changed, 319 insertions(+), 26 deletions(-)
 create mode 100644 arch/arm/mach-omap2/pmic-cpcap.c