diff options
| author | Daniel Lezcano <daniel.lezcano@linaro.org> | 2022-01-28 19:35:34 +0300 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2022-02-04 19:38:09 +0300 |
| commit | 3759ec678e8944dc2ea70cab77a300408f78ae27 (patch) | |
| tree | 49ccd70177019ceb73e7ec2e621c492e908cb23c /drivers/powercap/Kconfig | |
| parent | b9794a822281944ef3de5b1812a94cbdb8134320 (diff) | |
| download | linux-3759ec678e8944dc2ea70cab77a300408f78ae27.tar.xz | |
powercap/drivers/dtpm: Add hierarchy creation
The DTPM framework is available but without a way to configure it.
This change provides a way to create a hierarchy of DTPM node where
the power consumption reflects the sum of the children's power
consumption.
It is up to the platform to specify an array of dtpm nodes where each
element has a pointer to its parent, except the top most one. The type
of the node gives the indication of which initialization callback to
call. At this time, we can create a virtual node, where its purpose is
to be a parent in the hierarchy, and a DT node where the name
describes its path.
In order to ensure a nice self-encapsulation, the DTPM subsys array
contains a couple of initialization functions, one to setup the DTPM
backend and one to initialize it up. With this approach, the DTPM
framework has a very few material to export.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20220128163537.212248-3-daniel.lezcano@linaro.org
Diffstat (limited to 'drivers/powercap/Kconfig')
| -rw-r--r-- | drivers/powercap/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/powercap/Kconfig b/drivers/powercap/Kconfig index 8242e8c5ed77..b1ca339957e3 100644 --- a/drivers/powercap/Kconfig +++ b/drivers/powercap/Kconfig @@ -46,6 +46,7 @@ config IDLE_INJECT config DTPM bool "Power capping for Dynamic Thermal Power Management (EXPERIMENTAL)" + depends on OF help This enables support for the power capping for the dynamic thermal power management userspace engine. |