| Message ID | 20240819-lpm-v6-10-constraints-pmdomain-v2-2-461325a6008f@baylibre.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | pmdomain: ti_sci: collect and send low-power mode constraints | expand |
Ulf Hansson <ulf.hansson@linaro.org> writes: > On Tue, 20 Aug 2024 at 02:00, Kevin Hilman <khilman@baylibre.com> wrote: >> >> During system-wide suspend, check all devices connected to PM domain >> to see if they are wakeup-enabled. If so, set a TI SCI device >> constraint. >> >> Note: DM firmware clears all constraints on resume. >> >> Co-developed-by: Vibhore Vardhan <vibhore@ti.com> >> Signed-off-by: Vibhore Vardhan <vibhore@ti.com> >> Signed-off-by: Kevin Hilman <khilman@baylibre.com> >> Signed-off-by: Dhruva Gole <d-gole@ti.com> >> --- >> drivers/pmdomain/ti/ti_sci_pm_domains.c | 19 +++++++++++++++++++ >> 1 file changed, 19 insertions(+) >> >> diff --git a/drivers/pmdomain/ti/ti_sci_pm_domains.c b/drivers/pmdomain/ti/ti_sci_pm_domains.c >> index 963272fa387b..8af907579152 100644 >> --- a/drivers/pmdomain/ti/ti_sci_pm_domains.c >> +++ b/drivers/pmdomain/ti/ti_sci_pm_domains.c >> @@ -76,6 +76,23 @@ static int ti_sci_pd_set_lat_constraint(struct device *dev, s32 val) >> return ret; >> } >> >> +static inline bool ti_sci_pd_set_wkup_constraint(struct device *dev) >> +{ > > Similar comment as for patch1, should this be a static void intstead? > Yes, will do in v3. Kevin
diff --git a/drivers/pmdomain/ti/ti_sci_pm_domains.c b/drivers/pmdomain/ti/ti_sci_pm_domains.c index 963272fa387b..8af907579152 100644 --- a/drivers/pmdomain/ti/ti_sci_pm_domains.c +++ b/drivers/pmdomain/ti/ti_sci_pm_domains.c @@ -76,6 +76,23 @@ static int ti_sci_pd_set_lat_constraint(struct device *dev, s32 val) return ret; } +static inline bool ti_sci_pd_set_wkup_constraint(struct device *dev) +{ + struct generic_pm_domain *genpd = pd_to_genpd(dev->pm_domain); + struct ti_sci_pm_domain *pd = genpd_to_ti_sci_pd(genpd); + const struct ti_sci_handle *ti_sci = pd->parent->ti_sci; + int ret; + + if (device_may_wakeup(dev)) { + ret = ti_sci->ops.pm_ops.set_device_constraint(ti_sci, pd->idx, + TISCI_MSG_CONSTRAINT_SET); + if (!ret) + dev_dbg(dev, "ti_sci_pd: ID:%d set device constraint.\n", pd->idx); + } + + return true; +} + /* * ti_sci_pd_power_off(): genpd power down hook * @domain: pointer to the powerdomain to power off @@ -117,6 +134,8 @@ static int ti_sci_pd_suspend(struct device *dev) if (ti_sci_pd_is_valid_constraint(val)) ti_sci_pd_set_lat_constraint(dev, val); + ti_sci_pd_set_wkup_constraint(dev); + return 0; }