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authorDaniel Lezcano <daniel.lezcano@linaro.org>2022-01-28 19:35:34 +0300
committerDaniel Lezcano <daniel.lezcano@linaro.org>2022-02-04 19:38:09 +0300
commit3759ec678e8944dc2ea70cab77a300408f78ae27 (patch)
tree49ccd70177019ceb73e7ec2e621c492e908cb23c /drivers/powercap/Kconfig
parentb9794a822281944ef3de5b1812a94cbdb8134320 (diff)
downloadlinux-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/Kconfig1
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.