diff options
| author | Sylwester Nawrocki <s.nawrocki@samsung.com> | 2019-10-28 16:15:33 +0100 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzk@kernel.org> | 2019-10-28 17:59:33 +0100 |
| commit | 5ea428595cc53677a0a5bacd950307463c40411f (patch) | |
| tree | 1e7608136c8178ea7163587bc5733b3d30465b3c /drivers/soc/samsung/Kconfig | |
| parent | 477f842f14aadbad098fe7e6cff87c5565dbe71b (diff) | |
soc: samsung: Add Exynos Adaptive Supply Voltage driver
The Adaptive Supply Voltage (ASV) driver adjusts CPU cluster operating
points depending on exact revision of an SoC retrieved from the CHIPID
block or the OTP memory. This allows for some power saving as for some
CPU clock frequencies we can lower CPU cluster's supply voltage comparing
to safe values common to all the SoC revisions.
This patch adds support for Exynos5422/5800 SoC, it is partially based
on code from https://github.com/hardkernel/linux repository,
branch odroidxu4-4.14.y, files: arch/arm/mach-exynos/exynos5422-asv.[ch].
Tested on Odroid XU3, XU4, XU3 Lite.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Diffstat (limited to 'drivers/soc/samsung/Kconfig')
| -rw-r--r-- | drivers/soc/samsung/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/soc/samsung/Kconfig b/drivers/soc/samsung/Kconfig index 33ad0de2de3c..27fc59bbb520 100644 --- a/drivers/soc/samsung/Kconfig +++ b/drivers/soc/samsung/Kconfig @@ -7,6 +7,16 @@ menuconfig SOC_SAMSUNG if SOC_SAMSUNG +config EXYNOS_ASV + bool "Exynos Adaptive Supply Voltage support" if COMPILE_TEST + depends on (ARCH_EXYNOS && EXYNOS_CHIPID) || COMPILE_TEST + select EXYNOS_ASV_ARM if ARM && ARCH_EXYNOS + +# There is no need to enable these drivers for ARMv8 +config EXYNOS_ASV_ARM + bool "Exynos ASV ARMv7-specific driver extensions" if COMPILE_TEST + depends on EXYNOS_ASV + config EXYNOS_CHIPID bool "Exynos Chipid controller driver" if COMPILE_TEST depends on ARCH_EXYNOS || COMPILE_TEST |