This patchset adds Adaptive Body-Bias ldo handling to the OMAP voltage code with support for 36xx and 44xx chips. ABB handling is a mandatory part of the voltage scaling process when operating at high OPPs. A longer explanation is that due to voltage domain trimming and silicon characterstics some silicon may experience instability when operating at a high voltage. To compensate for this an Adaptive Body-Bias ldo exists. First featured in OMAP3630, the purpose of this ldo is to provide a voltage boost to PMOS backgates when a voltage domain is operating at a high OPP. In this mode the ldo is said to be in Forward Body-Bias. At OPPs within a nominal voltage range the ABB ldo is bypassed. The TRM defines voltages that require Forward Body-Bias as FAST OPP's, and all other voltages as NOMINAL OPP's. Find more info in the 36xx TRM in section 3.5.6.6.1 "ABB LDOs Control" and in the 4430 TRM in section 3.8.4.3 "ABB LDOs Control" and 3.10.4.2 "Changing OPP". Tested on OMAP 4430 SDP. Built against Kevin's pm-wip/voltdm branch and compiled with omap2plus_defconfig. Mike Turquette (6): OMAP3630: PRM: add ABB PRM register definitions OMAP3+: ABB: Adaptive Body-Bias structures & data OMAP3+: OPP: add ABB data to voltage tables OMAP3+: Voltage: add ABB data to voltage domains OMAP3+: ABB: initialization & transition functions OMAP3+: Voltage: add ABB to voltage scaling Nishanth Menon (2): OMAP3+: PM: VP: generalize PRM interrupt helpers OMAP3+: PRM: add tranxdone IRQ handlers for ABB arch/arm/mach-omap2/Makefile | 7 +- arch/arm/mach-omap2/abb.c | 218 +++++++++++++++++++++++++ arch/arm/mach-omap2/abb.h | 90 ++++++++++ arch/arm/mach-omap2/abb36xx_data.c | 38 +++++ arch/arm/mach-omap2/abb44xx_data.c | 44 +++++ arch/arm/mach-omap2/omap_opp_data.h | 5 +- arch/arm/mach-omap2/opp3xxx_data.c | 37 ++-- arch/arm/mach-omap2/opp4xxx_data.c | 25 ++-- arch/arm/mach-omap2/prm-regbits-34xx.h | 34 ++++ arch/arm/mach-omap2/prm2xxx_3xxx.c | 53 +++++-- arch/arm/mach-omap2/prm2xxx_3xxx.h | 14 ++- arch/arm/mach-omap2/prm44xx.c | 64 +++++-- arch/arm/mach-omap2/prm44xx.h | 10 +- arch/arm/mach-omap2/vc.c | 10 +- arch/arm/mach-omap2/voltage.c | 4 + arch/arm/mach-omap2/voltage.h | 2 + arch/arm/mach-omap2/voltagedomains3xxx_data.c | 3 + arch/arm/mach-omap2/voltagedomains44xx_data.c | 3 + arch/arm/mach-omap2/vp.c | 9 +- arch/arm/mach-omap2/vp.h | 9 - arch/arm/mach-omap2/vp3xxx_data.c | 4 +- arch/arm/mach-omap2/vp44xx_data.c | 6 +- 22 files changed, 598 insertions(+), 91 deletions(-) create mode 100644 arch/arm/mach-omap2/abb.c create mode 100644 arch/arm/mach-omap2/abb.h create mode 100644 arch/arm/mach-omap2/abb36xx_data.c create mode 100644 arch/arm/mach-omap2/abb44xx_data.c -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
