Re: [PATCH v3 2/5] powercap/drivers/dtpm: Create a registering system

[Lukasz Luba <lukasz.luba@arm.com>]

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.lezcano@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.luba@arm.com>