[RFC 0/4] Add basic support for ASV
Yadwinder Singh Brar
yadi.brar01 at gmail.com
Mon Nov 11 09:27:08 EST 2013
gentle ping for suggestions/reviews ..
On Wed, Sep 11, 2013 at 8:14 PM, Yadwinder Singh Brar
<yadi.brar at samsung.com> wrote:
> This series is to add basic common infrastructure for ASV.
> Basically ASV is a technique used on samsung SoCs, which provides the
> recommended supply voltage for dvfs of arm, mif etc. For a given operating
> frequency, the voltage is recommended based on SoC's ASV group.
> ASV group gets fussed on SoCs during process of mass production.
> This series includes:
> - basic common infrastructue for ASV. It provides common APIs for user drivers
> like cpufreq & devfreq and and an interface for SoC specific drivers to
> register ASV members(instances)
> - a common platform driver to register ASV members for exynos SoCs
> - an example providing minimal support (only for ARM ASV) for exynos5250 chips
> Its just basic skelton which I wanted to get it reviewed or discussed in
> early stage, before going ahead on further development based on it.
> Presently example is based on static ASV table provided in SoC specific file,
> which I expects to go into DT. But exactly how and where needs to be discussed,
> may be in next revisions once we get through the basic skelton.
> Also the location of driver in kernel may also seem odd to someone and
> many more things :).
> Looking for your valuable reviews and suggestions.
> Yadwinder Singh Brar (4):
> power: asv: Add common ASV support for samsung SoCs
> power: asv: Add a common asv driver for exynos SoCs.
> power: asv: Add support for exynos5250
> arm: exynos5: Register static platform device for ASV.
> arch/arm/mach-exynos/mach-exynos5-dt.c | 3 +
> drivers/power/Kconfig | 1 +
> drivers/power/Makefile | 1 +
> drivers/power/asv/Kconfig | 24 ++++
> drivers/power/asv/Makefile | 2 +
> drivers/power/asv/exynos-asv.c | 81 ++++++++++++++
> drivers/power/asv/exynos-asv.h | 22 ++++
> drivers/power/asv/exynos5250-asv.c | 141 ++++++++++++++++++++++++
> drivers/power/asv/samsung-asv.c | 175 ++++++++++++++++++++++++++++++
> include/linux/power/samsung-asv-driver.h | 61 +++++++++++
> include/linux/power/samsung-asv.h | 37 +++++++
> 11 files changed, 548 insertions(+), 0 deletions(-)
> create mode 100644 drivers/power/asv/Kconfig
> create mode 100644 drivers/power/asv/Makefile
> create mode 100644 drivers/power/asv/exynos-asv.c
> create mode 100644 drivers/power/asv/exynos-asv.h
> create mode 100644 drivers/power/asv/exynos5250-asv.c
> create mode 100644 drivers/power/asv/samsung-asv.c
> create mode 100644 include/linux/power/samsung-asv-driver.h
> create mode 100644 include/linux/power/samsung-asv.h
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