Re: [PATCH v3 3/5] OPP: Improve require-opps linking

[Viresh Kumar]

$subject doesn't have correct property name.

On 17-07-19, 15:23, Saravana Kannan wrote:
> Currently, the linking of required-opps fails silently if the
> destination OPP table hasn't been added before the source OPP table is
> added. This puts an unnecessary requirement that the destination table
> be added before the source table is added.
> 
> In reality, the destination table is needed only when we try to
> translate from source OPP to destination OPP. So, instead of
> completely failing, retry linking the tables when the translation is
> attempted.
> 
> Signed-off-by: Saravana Kannan <saravanak@xxxxxxxxxx>
> ---
>  drivers/opp/core.c | 32 +++++++++++-----
>  drivers/opp/of.c   | 91 ++++++++++++++++++++++------------------------
>  drivers/opp/opp.h  |  5 +++
>  3 files changed, 71 insertions(+), 57 deletions(-)

Here is the general feedback and requirements I have:

- We shouldn't do it from _set_required_opps() but way earlier, it
  shouldn't affect the fast path (where we change the frequency).

- Programming required-opps for half of the properties isn't correct,
  i.e. in case only few of the required-opps are parsed until now. So
  setting of rate shouldn't even start unless the OPP table is fully
  initialized with all required-opps in it.

-- 
viresh