diff --git a/drivers/soc/qcom/rpmhpd.c b/drivers/soc/qcom/rpmhpd.c index 319a2cf7e694..b0c0e151c80a 100644 --- a/drivers/soc/qcom/rpmhpd.c +++ b/drivers/soc/qcom/rpmhpd.c @@ -39,6 +39,7 @@ * @res_name: Resource name used for cmd-db lookup * @addr: Resource address as looped up using resource name from * cmd-db + * @state_synced: Indicator that sync_state has been invoked for the rpmhpd resource */ struct rpmhpd { struct device *dev; @@ -54,6 +55,7 @@ struct rpmhpd { bool enabled; const char *res_name; u32 addr; + bool state_synced; }; struct rpmhpd_desc { @@ -511,7 +513,13 @@ static int rpmhpd_aggregate_corner(struct rpmhpd *pd, unsigned int corner) unsigned int this_active_corner = 0, this_sleep_corner = 0; unsigned int peer_active_corner = 0, peer_sleep_corner = 0; - to_active_sleep(pd, corner, &this_active_corner, &this_sleep_corner); + if (pd->state_synced) { + to_active_sleep(pd, corner, &this_active_corner, &this_sleep_corner); + } else { + /* Clamp to highest corner if sync_state hasn't happened */ + this_active_corner = pd->level_count - 1; + this_sleep_corner = pd->level_count - 1; + } if (peer && peer->enabled) to_active_sleep(peer, peer->corner, &peer_active_corner, @@ -726,11 +734,40 @@ static int rpmhpd_probe(struct platform_device *pdev) return of_genpd_add_provider_onecell(pdev->dev.of_node, data); } +static void rpmhpd_sync_state(struct device *dev) +{ + const struct rpmhpd_desc *desc = of_device_get_match_data(dev); + struct rpmhpd **rpmhpds = desc->rpmhpds; + unsigned int corner; + struct rpmhpd *pd; + unsigned int i; + int ret; + + mutex_lock(&rpmhpd_lock); + for (i = 0; i < desc->num_pds; i++) { + pd = rpmhpds[i]; + if (!pd) + continue; + + pd->state_synced = true; + if (pd->enabled) + corner = max(pd->corner, pd->enable_corner); + else + corner = 0; + + ret = rpmhpd_aggregate_corner(pd, corner); + if (ret) + dev_err(dev, "failed to sync %s\n", pd->res_name); + } + mutex_unlock(&rpmhpd_lock); +} + static struct platform_driver rpmhpd_driver = { .driver = { .name = "qcom-rpmhpd", .of_match_table = rpmhpd_match_table, .suppress_bind_attrs = true, + .sync_state = rpmhpd_sync_state, }, .probe = rpmhpd_probe, };