diff options
author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-12-10 12:11:04 +0100 |
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committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-12-10 12:11:04 +0100 |
commit | 83fd1e52496b782a261804fadef8ff086e978584 (patch) | |
tree | 537ed30a8075d389cd37e9977228e522cd008afc /drivers/base | |
parent | 40e020c129cfc991e8ab4736d2665351ffd1468d (diff) | |
parent | e822eac560a89d04e26843b4908b0c2011c79de4 (diff) |
Merge branch 'opp/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull operating performance points (OPP) framework changes for v4.21
from Viresh Kumar.
* 'opp/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
OPP: Remove of_dev_pm_opp_find_required_opp()
OPP: Rename and relocate of_genpd_opp_to_performance_state()
OPP: Configure all required OPPs
OPP: Add dev_pm_opp_{set|put}_genpd_virt_dev() helper
PM / Domains: Add genpd_opp_to_performance_state()
OPP: Populate OPPs from "required-opps" property
OPP: Populate required opp tables from "required-opps" property
OPP: Separate out custom OPP handler specific code
OPP: Identify and mark genpd OPP tables
PM / Domains: Rename genpd virtual devices as virt_dev
Diffstat (limited to 'drivers/base')
-rw-r--r-- | drivers/base/power/domain.c | 70 |
1 files changed, 27 insertions, 43 deletions
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 7f38a92b444a..8e554e6a82a2 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -2338,7 +2338,7 @@ EXPORT_SYMBOL_GPL(genpd_dev_pm_attach); struct device *genpd_dev_pm_attach_by_id(struct device *dev, unsigned int index) { - struct device *genpd_dev; + struct device *virt_dev; int num_domains; int ret; @@ -2352,31 +2352,31 @@ struct device *genpd_dev_pm_attach_by_id(struct device *dev, return NULL; /* Allocate and register device on the genpd bus. */ - genpd_dev = kzalloc(sizeof(*genpd_dev), GFP_KERNEL); - if (!genpd_dev) + virt_dev = kzalloc(sizeof(*virt_dev), GFP_KERNEL); + if (!virt_dev) return ERR_PTR(-ENOMEM); - dev_set_name(genpd_dev, "genpd:%u:%s", index, dev_name(dev)); - genpd_dev->bus = &genpd_bus_type; - genpd_dev->release = genpd_release_dev; + dev_set_name(virt_dev, "genpd:%u:%s", index, dev_name(dev)); + virt_dev->bus = &genpd_bus_type; + virt_dev->release = genpd_release_dev; - ret = device_register(genpd_dev); + ret = device_register(virt_dev); if (ret) { - kfree(genpd_dev); + kfree(virt_dev); return ERR_PTR(ret); } /* Try to attach the device to the PM domain at the specified index. */ - ret = __genpd_dev_pm_attach(genpd_dev, dev->of_node, index, false); + ret = __genpd_dev_pm_attach(virt_dev, dev->of_node, index, false); if (ret < 1) { - device_unregister(genpd_dev); + device_unregister(virt_dev); return ret ? ERR_PTR(ret) : NULL; } - pm_runtime_enable(genpd_dev); - genpd_queue_power_off_work(dev_to_genpd(genpd_dev)); + pm_runtime_enable(virt_dev); + genpd_queue_power_off_work(dev_to_genpd(virt_dev)); - return genpd_dev; + return virt_dev; } EXPORT_SYMBOL_GPL(genpd_dev_pm_attach_by_id); @@ -2521,52 +2521,36 @@ int of_genpd_parse_idle_states(struct device_node *dn, EXPORT_SYMBOL_GPL(of_genpd_parse_idle_states); /** - * of_genpd_opp_to_performance_state- Gets performance state of device's - * power domain corresponding to a DT node's "required-opps" property. + * pm_genpd_opp_to_performance_state - Gets performance state of the genpd from its OPP node. * - * @dev: Device for which the performance-state needs to be found. - * @np: DT node where the "required-opps" property is present. This can be - * the device node itself (if it doesn't have an OPP table) or a node - * within the OPP table of a device (if device has an OPP table). + * @genpd_dev: Genpd's device for which the performance-state needs to be found. + * @opp: struct dev_pm_opp of the OPP for which we need to find performance + * state. * - * Returns performance state corresponding to the "required-opps" property of - * a DT node. This calls platform specific genpd->opp_to_performance_state() - * callback to translate power domain OPP to performance state. + * Returns performance state encoded in the OPP of the genpd. This calls + * platform specific genpd->opp_to_performance_state() callback to translate + * power domain OPP to performance state. * * Returns performance state on success and 0 on failure. */ -unsigned int of_genpd_opp_to_performance_state(struct device *dev, - struct device_node *np) +unsigned int pm_genpd_opp_to_performance_state(struct device *genpd_dev, + struct dev_pm_opp *opp) { - struct generic_pm_domain *genpd; - struct dev_pm_opp *opp; - int state = 0; + struct generic_pm_domain *genpd = NULL; + int state; - genpd = dev_to_genpd(dev); - if (IS_ERR(genpd)) - return 0; + genpd = container_of(genpd_dev, struct generic_pm_domain, dev); - if (unlikely(!genpd->set_performance_state)) + if (unlikely(!genpd->opp_to_performance_state)) return 0; genpd_lock(genpd); - - opp = of_dev_pm_opp_find_required_opp(&genpd->dev, np); - if (IS_ERR(opp)) { - dev_err(dev, "Failed to find required OPP: %ld\n", - PTR_ERR(opp)); - goto unlock; - } - state = genpd->opp_to_performance_state(genpd, opp); - dev_pm_opp_put(opp); - -unlock: genpd_unlock(genpd); return state; } -EXPORT_SYMBOL_GPL(of_genpd_opp_to_performance_state); +EXPORT_SYMBOL_GPL(pm_genpd_opp_to_performance_state); static int __init genpd_bus_init(void) { |