diff options
Diffstat (limited to 'drivers/opp')
| -rw-r--r-- | drivers/opp/core.c | 16 | ||||
| -rw-r--r-- | drivers/opp/of.c | 7 |
2 files changed, 20 insertions, 3 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c index e08375ed50aa..4f1ca84d9ed0 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -2392,6 +2392,12 @@ static int _opp_attach_genpd(struct opp_table *opp_table, struct device *dev, return -EINVAL; } + /* Genpd core takes care of propagation to parent genpd */ + if (opp_table->is_genpd) { + dev_err(dev, "%s: Operation not supported for genpds\n", __func__); + return -EOPNOTSUPP; + } + /* Checking only the first one is enough ? */ if (opp_table->required_devs[0]) return 0; @@ -2453,8 +2459,16 @@ static int _opp_set_required_devs(struct opp_table *opp_table, if (opp_table->required_devs[0]) return 0; - for (i = 0; i < opp_table->required_opp_count; i++) + for (i = 0; i < opp_table->required_opp_count; i++) { + /* Genpd core takes care of propagation to parent genpd */ + if (required_devs[i] && opp_table->is_genpd && + opp_table->required_opp_tables[i]->is_genpd) { + dev_err(dev, "%s: Operation not supported for genpds\n", __func__); + return -EOPNOTSUPP; + } + opp_table->required_devs[i] = required_devs[i]; + } return 0; } diff --git a/drivers/opp/of.c b/drivers/opp/of.c index 5a7e294e56b7..f9f0b22bccbb 100644 --- a/drivers/opp/of.c +++ b/drivers/opp/of.c @@ -339,8 +339,11 @@ static int _link_required_opps(struct dev_pm_opp *opp, struct opp_table *opp_tab */ if (required_table->is_genpd && opp_table->required_opp_count == 1 && !opp_table->required_devs[0]) { - if (!WARN_ON(opp->level != OPP_LEVEL_UNSET)) - opp->level = opp->required_opps[0]->level; + /* Genpd core takes care of propagation to parent genpd */ + if (!opp_table->is_genpd) { + if (!WARN_ON(opp->level != OPP_LEVEL_UNSET)) + opp->level = opp->required_opps[0]->level; + } } return 0; |