Commit cf65948d authored by Dmitry Osipenko's avatar Dmitry Osipenko Committed by Viresh Kumar
Browse files

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: default avatarPeter Geis <pgwipeout@gmail.com>
Tested-by: default avatarNicolas Chauvet <kwizart@gmail.com>
Tested-by: default avatarMatt Merhar <mattmerhar@protonmail.com>
Signed-off-by: default avatarDmitry Osipenko <digetx@gmail.com>
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
parent 32715be4

drivers/opp/core.c

+11 −0
Original line number Diff line number Diff line
@@ -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;

}