On 3/10/21 11:02 AM, Daniel Lezcano wrote:
A SoC can be differently structured depending on the platform and the
kernel can not be aware of all the combinations, as well as the
specific tweaks for a particular board.
The creation of the hierarchy must be delegated to userspace.
These changes provide a registering mechanism where the different
subsystems will initialize their dtpm backends and register with a
name the dtpm node in a list.
The next changes will provide an userspace interface to create
hierachically the different nodes. Those will be created by name and
s/hierachically/hierarchically
found via the list filled by the different subsystem.
If a specified name is not found in the list, it is assumed to be a
virtual node which will have children and the default is to allocate
such node.
When the node register in the list, the function will be dtpm_register
where the previous semantic was to create the node. Thus, the
functions are renamed to reflect their purpose.
Signed-off-by: Daniel Lezcano <daniel.lezc...@linaro.org>
---
V2:
- Fixed error code path by dropping lock
---
drivers/powercap/dtpm.c | 161 ++++++++++++++++++++++++++++++++++--
drivers/powercap/dtpm_cpu.c | 4 +-
include/linux/dtpm.h | 12 ++-
3 files changed, 164 insertions(+), 13 deletions(-)
apart from the above, LGTM
Reviewed-by: Lukasz Luba <lukasz.l...@arm.com>
