diff options
| author | Dmitry Osipenko <digetx@gmail.com> | 2021-01-18 03:55:14 +0300 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2021-02-02 10:26:54 +0530 |
| commit | cf65948d62c6aefd22f51c1433743f80517ee3fe (patch) | |
| tree | 6075cbc4c9ca2846b229397224df222e7854b76b /drivers/opp | |
| parent | 32715be4fe95fc98762959f8dff6f9f8a39df28f (diff) | |
opp: Filter out OPPs based on availability of a required-OPP
A required OPP may not be available, and thus, all OPPs which are using
this required OPP should be unavailable too.
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Tested-by: Matt Merhar <mattmerhar@protonmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/opp')
| -rw-r--r-- | drivers/opp/core.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c index 5793c833b86a..253bc87b5695 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -1522,6 +1522,7 @@ int _opp_add(struct device *dev, struct dev_pm_opp *new_opp, struct opp_table *opp_table, bool rate_not_available) { struct list_head *head; + unsigned int i; int ret; mutex_lock(&opp_table->lock); @@ -1547,6 +1548,16 @@ int _opp_add(struct device *dev, struct dev_pm_opp *new_opp, __func__, new_opp->rate); } + for (i = 0; i < opp_table->required_opp_count; i++) { + if (new_opp->required_opps[i]->available) + continue; + + new_opp->available = false; + dev_warn(dev, "%s: OPP not supported by required OPP %pOF (%lu)\n", + __func__, new_opp->required_opps[i]->np, new_opp->rate); + break; + } + return 0; } |