From: Jean Pihet <j-pi...@ti.com> The following patches are in RFC state; the code is still WIP and has been compile tested only. Feedback on the code organization is welcome!
AVS is a power management technique which controls the operating voltage of a device in order to optimize (i.e. reduce) its power consumption. The voltage is adapted depending on static factors (chip manufacturing process) and dynamic factors (temperature depending performance). AVS is also called SmartReflex on OMAP devices. To that end, create the AVS framework in drivers/power/avs and move the OMAP SmartReflex code to the new directory. In preparation to the move of the OMAP code the following changes have been made: - split into common code (not semiconductor specific), a v1 IP driver, a v2 IP driver and a class driver for SmartReflex Class3, - initialize the v1 driver for OMAP34xx platform and v2 driver for OMAP36xx and OMAP4xxx platforms, - create CONFIG_AVS* config options accordingly, - split the include files into generic and platform specific code, - removal of unused code in SmartReflex: notification machanism, PMIC specific code. The following features are supported: - read the SmartReflex values from the e-fuses and allow the board file code to override the values, - platform integration data for SmartReflex is passed to the driver using pdata. ToDo: - integration with the platform code, - kerneldoc should be added to the new structs and functions, - use correct device attribute data for OMAP4, - test on board (OMAP3/4), - integrate latest SmartReflex fixes [1] The code is based on Paul's original version of the SmartReflex driver conversion [2]. Compile tested only using omap2plus_defconfig with the CONFIG_POWER_AVS* options set. Based on latest master branch of the l-o git tree (3.2.0-rc2) [3]. [1] http://marc.info/?l=linux-omap&m=132134699423547&w=2 [2] smartreflex_cleanup_3.1 branch of git://git.pwsan.com/linux-2.6 [3] git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git Jean Pihet (14): OMAP3/4: SmartReflex: class drivers should use struct omap_sr * OMAP3/4: SmartReflex: API should use struct omap_sr *, not struct voltagedomain * OMAP: SmartReflex: drop _sr_lookup() OMAP3+: Pass SmartReflex instance-specific data via hwmod dev_attr OMAP3+: hwmod: get rid of vdd_name field OMAP2+: rename struct omap_sr_class_data to smartreflex_class_data OMAP2+: Use the names from the SmartReflex data instead of voltage domains. OMAP2+: SmartReflex: make driver generic OMAP2+: SmartReflex: get rid of superfluous data that is duplicated between platform_data and the struct omap_sr OMAP2+: SmartReflex: remove OMAP specific code OMAP2+: SmartReflex: conversion into generic driver OMAP3+: voltage: export functions to plat/voltage.h OMAP: PM: convert the SmartReflex code into the AVS driver framework PM: Create the AVS class of drivers Paul Walmsley (12): OMAP2+: smartreflex: use sane default values OMAP: hwmod/SmartReflex: remove IP block instance-specific data from the driver code OMAP: SmartReflex: make pdata distinct from other data OMAP: SmartReflex: Use 'sr' for struct smartreflex OMAP3+: SmartReflex: remove unused PMIC code OMAP: SmartReflex: remove some SoC-specific implementation details from driver OMAP: SmartReflex driver interface: allow core to override eFuse data OMAP2+: SmartReflex: rename nvalue table OMAP2+: SmartReflex: cosmetic changes OMAP3+: Add SmartReflex clocks OMAP2+: Use the TRM formula to calculate the SmartReflex clock rate OMAP2+: SmartReflex: Remove the notifier handler arch/arm/mach-omap2/Makefile | 4 +- arch/arm/mach-omap2/clock3xxx_data.c | 6 + arch/arm/mach-omap2/clock44xx_data.c | 3 + arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 37 +- arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 40 +- arch/arm/mach-omap2/pm.h | 2 +- arch/arm/mach-omap2/smartreflex-class3.c | 59 -- arch/arm/mach-omap2/smartreflex.c | 1056 ------------------------- arch/arm/mach-omap2/smartreflex.h | 246 ------ arch/arm/mach-omap2/sr_device.c | 129 ++-- arch/arm/mach-omap2/voltage.h | 3 +- arch/arm/mach-omap2/vp.h | 2 - arch/arm/plat-omap/Kconfig | 31 - arch/arm/plat-omap/include/plat/omap_hwmod.h | 3 - arch/arm/plat-omap/include/plat/smartreflex.h | 106 +++ arch/arm/plat-omap/include/plat/voltage.h | 3 + drivers/power/Kconfig | 2 + drivers/power/Makefile | 2 + drivers/power/avs/Kconfig | 56 ++ drivers/power/avs/Makefile | 4 + drivers/power/avs/smartreflex-class3.c | 64 ++ drivers/power/avs/smartreflex-common.c | 543 +++++++++++++ drivers/power/avs/smartreflex.h | 231 ++++++ drivers/power/avs/smartreflex_v1.c | 183 +++++ drivers/power/avs/smartreflex_v2.c | 186 +++++ 25 files changed, 1544 insertions(+), 1457 deletions(-) delete mode 100644 arch/arm/mach-omap2/smartreflex-class3.c delete mode 100644 arch/arm/mach-omap2/smartreflex.c delete mode 100644 arch/arm/mach-omap2/smartreflex.h create mode 100644 arch/arm/plat-omap/include/plat/smartreflex.h create mode 100644 drivers/power/avs/Kconfig create mode 100644 drivers/power/avs/Makefile create mode 100644 drivers/power/avs/smartreflex-class3.c create mode 100644 drivers/power/avs/smartreflex-common.c create mode 100644 drivers/power/avs/smartreflex.h create mode 100644 drivers/power/avs/smartreflex_v1.c create mode 100644 drivers/power/avs/smartreflex_v2.c -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
