Re: [PATCH v8 19/34] pwm: tegra: Add runtime PM and OPP support

Ulf Hansson
2021-08-19T14:05:35Z

On Thu, 19 Aug 2021 at 15:21, Thierry Reding <thierry.reding@gmail.com> wrote:
>
> On Tue, Aug 17, 2021 at 04:27:39AM +0300, Dmitry Osipenko wrote:
> > The PWM on Tegra belongs to the core power domain and we're going to
> > enable GENPD support for the core domain. Now PWM must be resumed using
> > runtime PM API in order to initialize the PWM power state. The PWM clock
> > rate must be changed using OPP API that will reconfigure the power domain
> > performance state in accordance to the rate. Add runtime PM and OPP
> > support to the PWM driver.
> >
> > Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
> > ---
> > drivers/pwm/pwm-tegra.c | 104 ++++++++++++++++++++++++++++++++--------
> > 1 file changed, 85 insertions(+), 19 deletions(-)
>
> Can this be safely applied independently of the rest of the series, or
> are there any dependencies on earlier patches?

Just to make sure we don't rush something in, I would rather withhold
all runtime PM related patches in the series, until we have agreed on
how to fix the in genpd/opp core parts. Simply, because those may very
well affect the deployments in the drivers.

>
> Thierry

Kind regards
Uffe