mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-17 01:04:19 +08:00
2eedf62e66
The opp-microwatt property was added with the intention of providing platforms a way to specify a precise value for the power consumption of a device at a given OPP to enable better energy-aware scheduling decisions by informing the kernel of the total static and dynamic power of a device at a given OPP, removing the reliance on the EM subsystem's often flawed estimations. This property is parsed by opp_parse_supplies(), which creates a hard dependency on the opp-microvolt property. Some platforms, such as Apple Silicon, do not describe their device's voltage regulators in the DT as they cannot be controlled by the kernel and/or rely on opaque firmware algorithms to control their voltage and current characteristics at runtime. We can, however, experimentally determine the power consumption of a given device at a given OPP, taking advantage of opp-microwatt to provide EAS on such devices as was initially intended. Allow platforms to specify and consume any subset of opp-microvolt, opp-microamp, or opp-microwatt without a hard dependency on opp-microvolt to enable this functionality on such platforms. Tested-by: James Calligeros <jcalligeros99@gmail.com> Signed-off-by: James Calligeros <jcalligeros99@gmail.com> Co-developed-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> |
||
|---|---|---|
| .. | ||
| core.c | ||
| cpu.c | ||
| debugfs.c | ||
| Kconfig | ||
| Makefile | ||
| of.c | ||
| opp.h | ||
| ti-opp-supply.c | ||