mirror of https://gitee.com/openkylin/linux.git
Merge branches 'pm-core', 'pm-opp', 'pm-domains', 'pm-cpu' and 'pm-avs'
* pm-core: PM / wakeup: Set power.can_wakeup if wakeup_sysfs_add() fails * pm-opp: PM / OPP: Fix get sharing CPUs when hotplug is used PM / OPP: OF: Use pr_debug() instead of pr_err() while adding OPP table * pm-domains: PM / Domains: Convert to using %pOF instead of full_name PM / Domains: Extend generic power domain debugfs PM / Domains: Add time accounting to various genpd states * pm-cpu: PM / CPU: replace raw_notifier with atomic_notifier * pm-avs: PM / AVS: rockchip-io: add io selectors and supplies for RV1108
This commit is contained in:
Rafael J. Wysocki
commit
45a7953c83
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|
@ -39,6 +39,8 @@ Required properties:
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- "rockchip,rk3368-pmu-io-voltage-domain" for rk3368 pmu-domains
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- "rockchip,rk3399-io-voltage-domain" for rk3399
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- "rockchip,rk3399-pmu-io-voltage-domain" for rk3399 pmu-domains
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- "rockchip,rv1108-io-voltage-domain" for rv1108
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- "rockchip,rv1108-pmu-io-voltage-domain" for rv1108 pmu-domains
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Deprecated properties:
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- rockchip,grf: phandle to the syscon managing the "general register files"
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@ -209,6 +209,34 @@ static void genpd_sd_counter_inc(struct generic_pm_domain *genpd)
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smp_mb__after_atomic();
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}
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#ifdef CONFIG_DEBUG_FS
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static void genpd_update_accounting(struct generic_pm_domain *genpd)
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{
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ktime_t delta, now;
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now = ktime_get();
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delta = ktime_sub(now, genpd->accounting_time);
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/*
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* If genpd->status is active, it means we are just
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* out of off and so update the idle time and vice
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* versa.
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*/
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if (genpd->status == GPD_STATE_ACTIVE) {
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int state_idx = genpd->state_idx;
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genpd->states[state_idx].idle_time =
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ktime_add(genpd->states[state_idx].idle_time, delta);
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} else {
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genpd->on_time = ktime_add(genpd->on_time, delta);
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}
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genpd->accounting_time = now;
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}
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#else
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static inline void genpd_update_accounting(struct generic_pm_domain *genpd) {}
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#endif
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static int _genpd_power_on(struct generic_pm_domain *genpd, bool timed)
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{
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unsigned int state_idx = genpd->state_idx;
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@ -361,6 +389,7 @@ static int genpd_power_off(struct generic_pm_domain *genpd, bool one_dev_on,
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}
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genpd->status = GPD_STATE_POWER_OFF;
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genpd_update_accounting(genpd);
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list_for_each_entry(link, &genpd->slave_links, slave_node) {
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genpd_sd_counter_dec(link->master);
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@ -413,6 +442,8 @@ static int genpd_power_on(struct generic_pm_domain *genpd, unsigned int depth)
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goto err;
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genpd->status = GPD_STATE_ACTIVE;
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genpd_update_accounting(genpd);
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return 0;
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err:
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@ -1540,6 +1571,7 @@ int pm_genpd_init(struct generic_pm_domain *genpd,
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genpd->max_off_time_changed = true;
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genpd->provider = NULL;
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genpd->has_provider = false;
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genpd->accounting_time = ktime_get();
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genpd->domain.ops.runtime_suspend = genpd_runtime_suspend;
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genpd->domain.ops.runtime_resume = genpd_runtime_resume;
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genpd->domain.ops.prepare = pm_genpd_prepare;
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@ -1743,7 +1775,7 @@ static int genpd_add_provider(struct device_node *np, genpd_xlate_t xlate,
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mutex_lock(&of_genpd_mutex);
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list_add(&cp->link, &of_genpd_providers);
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mutex_unlock(&of_genpd_mutex);
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pr_debug("Added domain provider from %s\n", np->full_name);
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pr_debug("Added domain provider from %pOF\n", np);
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return 0;
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}
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@ -2149,16 +2181,16 @@ static int genpd_parse_state(struct genpd_power_state *genpd_state,
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err = of_property_read_u32(state_node, "entry-latency-us",
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&entry_latency);
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if (err) {
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pr_debug(" * %s missing entry-latency-us property\n",
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state_node->full_name);
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pr_debug(" * %pOF missing entry-latency-us property\n",
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state_node);
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return -EINVAL;
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}
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err = of_property_read_u32(state_node, "exit-latency-us",
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&exit_latency);
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if (err) {
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pr_debug(" * %s missing exit-latency-us property\n",
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state_node->full_name);
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pr_debug(" * %pOF missing exit-latency-us property\n",
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state_node);
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return -EINVAL;
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}
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@ -2212,8 +2244,8 @@ int of_genpd_parse_idle_states(struct device_node *dn,
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ret = genpd_parse_state(&st[i++], np);
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if (ret) {
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pr_err
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("Parsing idle state node %s failed with err %d\n",
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np->full_name, ret);
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("Parsing idle state node %pOF failed with err %d\n",
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np, ret);
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of_node_put(np);
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kfree(st);
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return ret;
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@ -2327,7 +2359,7 @@ static int pm_genpd_summary_one(struct seq_file *s,
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return 0;
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}
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static int pm_genpd_summary_show(struct seq_file *s, void *data)
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static int genpd_summary_show(struct seq_file *s, void *data)
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{
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struct generic_pm_domain *genpd;
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int ret = 0;
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@ -2350,21 +2382,187 @@ static int pm_genpd_summary_show(struct seq_file *s, void *data)
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return ret;
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}
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static int pm_genpd_summary_open(struct inode *inode, struct file *file)
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static int genpd_status_show(struct seq_file *s, void *data)
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{
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return single_open(file, pm_genpd_summary_show, NULL);
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static const char * const status_lookup[] = {
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[GPD_STATE_ACTIVE] = "on",
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[GPD_STATE_POWER_OFF] = "off"
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};
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struct generic_pm_domain *genpd = s->private;
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int ret = 0;
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ret = genpd_lock_interruptible(genpd);
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if (ret)
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return -ERESTARTSYS;
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if (WARN_ON_ONCE(genpd->status >= ARRAY_SIZE(status_lookup)))
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goto exit;
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if (genpd->status == GPD_STATE_POWER_OFF)
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seq_printf(s, "%s-%u\n", status_lookup[genpd->status],
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genpd->state_idx);
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else
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seq_printf(s, "%s\n", status_lookup[genpd->status]);
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exit:
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genpd_unlock(genpd);
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return ret;
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}
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static const struct file_operations pm_genpd_summary_fops = {
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.open = pm_genpd_summary_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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static int genpd_sub_domains_show(struct seq_file *s, void *data)
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{
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struct generic_pm_domain *genpd = s->private;
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struct gpd_link *link;
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int ret = 0;
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ret = genpd_lock_interruptible(genpd);
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if (ret)
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return -ERESTARTSYS;
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list_for_each_entry(link, &genpd->master_links, master_node)
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seq_printf(s, "%s\n", link->slave->name);
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genpd_unlock(genpd);
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return ret;
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}
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static int genpd_idle_states_show(struct seq_file *s, void *data)
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{
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struct generic_pm_domain *genpd = s->private;
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unsigned int i;
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int ret = 0;
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ret = genpd_lock_interruptible(genpd);
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if (ret)
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return -ERESTARTSYS;
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seq_puts(s, "State Time Spent(ms)\n");
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for (i = 0; i < genpd->state_count; i++) {
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ktime_t delta = 0;
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s64 msecs;
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if ((genpd->status == GPD_STATE_POWER_OFF) &&
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(genpd->state_idx == i))
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delta = ktime_sub(ktime_get(), genpd->accounting_time);
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msecs = ktime_to_ms(
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ktime_add(genpd->states[i].idle_time, delta));
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seq_printf(s, "S%-13i %lld\n", i, msecs);
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}
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genpd_unlock(genpd);
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return ret;
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}
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static int genpd_active_time_show(struct seq_file *s, void *data)
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{
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struct generic_pm_domain *genpd = s->private;
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ktime_t delta = 0;
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int ret = 0;
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ret = genpd_lock_interruptible(genpd);
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if (ret)
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return -ERESTARTSYS;
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|
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if (genpd->status == GPD_STATE_ACTIVE)
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delta = ktime_sub(ktime_get(), genpd->accounting_time);
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seq_printf(s, "%lld ms\n", ktime_to_ms(
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ktime_add(genpd->on_time, delta)));
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genpd_unlock(genpd);
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return ret;
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}
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static int genpd_total_idle_time_show(struct seq_file *s, void *data)
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{
|
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struct generic_pm_domain *genpd = s->private;
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ktime_t delta = 0, total = 0;
|
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unsigned int i;
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int ret = 0;
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ret = genpd_lock_interruptible(genpd);
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if (ret)
|
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return -ERESTARTSYS;
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|
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for (i = 0; i < genpd->state_count; i++) {
|
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|
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if ((genpd->status == GPD_STATE_POWER_OFF) &&
|
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(genpd->state_idx == i))
|
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delta = ktime_sub(ktime_get(), genpd->accounting_time);
|
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|
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total = ktime_add(total, genpd->states[i].idle_time);
|
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}
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total = ktime_add(total, delta);
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|
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seq_printf(s, "%lld ms\n", ktime_to_ms(total));
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|
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genpd_unlock(genpd);
|
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return ret;
|
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}
|
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|
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|
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static int genpd_devices_show(struct seq_file *s, void *data)
|
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{
|
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struct generic_pm_domain *genpd = s->private;
|
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struct pm_domain_data *pm_data;
|
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const char *kobj_path;
|
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int ret = 0;
|
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|
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ret = genpd_lock_interruptible(genpd);
|
||||
if (ret)
|
||||
return -ERESTARTSYS;
|
||||
|
||||
list_for_each_entry(pm_data, &genpd->dev_list, list_node) {
|
||||
kobj_path = kobject_get_path(&pm_data->dev->kobj,
|
||||
genpd_is_irq_safe(genpd) ?
|
||||
GFP_ATOMIC : GFP_KERNEL);
|
||||
if (kobj_path == NULL)
|
||||
continue;
|
||||
|
||||
seq_printf(s, "%s\n", kobj_path);
|
||||
kfree(kobj_path);
|
||||
}
|
||||
|
||||
genpd_unlock(genpd);
|
||||
return ret;
|
||||
}
|
||||
|
||||
#define define_genpd_open_function(name) \
|
||||
static int genpd_##name##_open(struct inode *inode, struct file *file) \
|
||||
{ \
|
||||
return single_open(file, genpd_##name##_show, inode->i_private); \
|
||||
}
|
||||
|
||||
define_genpd_open_function(summary);
|
||||
define_genpd_open_function(status);
|
||||
define_genpd_open_function(sub_domains);
|
||||
define_genpd_open_function(idle_states);
|
||||
define_genpd_open_function(active_time);
|
||||
define_genpd_open_function(total_idle_time);
|
||||
define_genpd_open_function(devices);
|
||||
|
||||
#define define_genpd_debugfs_fops(name) \
|
||||
static const struct file_operations genpd_##name##_fops = { \
|
||||
.open = genpd_##name##_open, \
|
||||
.read = seq_read, \
|
||||
.llseek = seq_lseek, \
|
||||
.release = single_release, \
|
||||
}
|
||||
|
||||
define_genpd_debugfs_fops(summary);
|
||||
define_genpd_debugfs_fops(status);
|
||||
define_genpd_debugfs_fops(sub_domains);
|
||||
define_genpd_debugfs_fops(idle_states);
|
||||
define_genpd_debugfs_fops(active_time);
|
||||
define_genpd_debugfs_fops(total_idle_time);
|
||||
define_genpd_debugfs_fops(devices);
|
||||
|
||||
static int __init pm_genpd_debug_init(void)
|
||||
{
|
||||
struct dentry *d;
|
||||
struct generic_pm_domain *genpd;
|
||||
|
||||
pm_genpd_debugfs_dir = debugfs_create_dir("pm_genpd", NULL);
|
||||
|
||||
|
|
@ -2372,10 +2570,29 @@ static int __init pm_genpd_debug_init(void)
|
|||
return -ENOMEM;
|
||||
|
||||
d = debugfs_create_file("pm_genpd_summary", S_IRUGO,
|
||||
pm_genpd_debugfs_dir, NULL, &pm_genpd_summary_fops);
|
||||
pm_genpd_debugfs_dir, NULL, &genpd_summary_fops);
|
||||
if (!d)
|
||||
return -ENOMEM;
|
||||
|
||||
list_for_each_entry(genpd, &gpd_list, gpd_list_node) {
|
||||
d = debugfs_create_dir(genpd->name, pm_genpd_debugfs_dir);
|
||||
if (!d)
|
||||
return -ENOMEM;
|
||||
|
||||
debugfs_create_file("current_state", 0444,
|
||||
d, genpd, &genpd_status_fops);
|
||||
debugfs_create_file("sub_domains", 0444,
|
||||
d, genpd, &genpd_sub_domains_fops);
|
||||
debugfs_create_file("idle_states", 0444,
|
||||
d, genpd, &genpd_idle_states_fops);
|
||||
debugfs_create_file("active_time", 0444,
|
||||
d, genpd, &genpd_active_time_fops);
|
||||
debugfs_create_file("total_idle_time", 0444,
|
||||
d, genpd, &genpd_total_idle_time_fops);
|
||||
debugfs_create_file("devices", 0444,
|
||||
d, genpd, &genpd_devices_fops);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
late_initcall(pm_genpd_debug_init);
|
||||
|
|
|
|||
|
|
@ -248,15 +248,22 @@ void dev_pm_opp_of_remove_table(struct device *dev)
|
|||
}
|
||||
EXPORT_SYMBOL_GPL(dev_pm_opp_of_remove_table);
|
||||
|
||||
/* Returns opp descriptor node for a device, caller must do of_node_put() */
|
||||
struct device_node *dev_pm_opp_of_get_opp_desc_node(struct device *dev)
|
||||
/* Returns opp descriptor node for a device node, caller must
|
||||
* do of_node_put() */
|
||||
static struct device_node *_opp_of_get_opp_desc_node(struct device_node *np)
|
||||
{
|
||||
/*
|
||||
* There should be only ONE phandle present in "operating-points-v2"
|
||||
* property.
|
||||
*/
|
||||
|
||||
return of_parse_phandle(dev->of_node, "operating-points-v2", 0);
|
||||
return of_parse_phandle(np, "operating-points-v2", 0);
|
||||
}
|
||||
|
||||
/* Returns opp descriptor node for a device, caller must do of_node_put() */
|
||||
struct device_node *dev_pm_opp_of_get_opp_desc_node(struct device *dev)
|
||||
{
|
||||
return _opp_of_get_opp_desc_node(dev->of_node);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(dev_pm_opp_of_get_opp_desc_node);
|
||||
|
||||
|
|
@ -539,8 +546,12 @@ int dev_pm_opp_of_cpumask_add_table(const struct cpumask *cpumask)
|
|||
|
||||
ret = dev_pm_opp_of_add_table(cpu_dev);
|
||||
if (ret) {
|
||||
pr_err("%s: couldn't find opp table for cpu:%d, %d\n",
|
||||
__func__, cpu, ret);
|
||||
/*
|
||||
* OPP may get registered dynamically, don't print error
|
||||
* message here.
|
||||
*/
|
||||
pr_debug("%s: couldn't find opp table for cpu:%d, %d\n",
|
||||
__func__, cpu, ret);
|
||||
|
||||
/* Free all other OPPs */
|
||||
dev_pm_opp_of_cpumask_remove_table(cpumask);
|
||||
|
|
@ -572,8 +583,7 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_of_cpumask_add_table);
|
|||
int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev,
|
||||
struct cpumask *cpumask)
|
||||
{
|
||||
struct device_node *np, *tmp_np;
|
||||
struct device *tcpu_dev;
|
||||
struct device_node *np, *tmp_np, *cpu_np;
|
||||
int cpu, ret = 0;
|
||||
|
||||
/* Get OPP descriptor node */
|
||||
|
|
@ -593,19 +603,18 @@ int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev,
|
|||
if (cpu == cpu_dev->id)
|
||||
continue;
|
||||
|
||||
tcpu_dev = get_cpu_device(cpu);
|
||||
if (!tcpu_dev) {
|
||||
dev_err(cpu_dev, "%s: failed to get cpu%d device\n",
|
||||
cpu_np = of_get_cpu_node(cpu, NULL);
|
||||
if (!cpu_np) {
|
||||
dev_err(cpu_dev, "%s: failed to get cpu%d node\n",
|
||||
__func__, cpu);
|
||||
ret = -ENODEV;
|
||||
ret = -ENOENT;
|
||||
goto put_cpu_node;
|
||||
}
|
||||
|
||||
/* Get OPP descriptor node */
|
||||
tmp_np = dev_pm_opp_of_get_opp_desc_node(tcpu_dev);
|
||||
tmp_np = _opp_of_get_opp_desc_node(cpu_np);
|
||||
if (!tmp_np) {
|
||||
dev_err(tcpu_dev, "%s: Couldn't find opp node.\n",
|
||||
__func__);
|
||||
pr_err("%pOF: Couldn't find opp node\n", cpu_np);
|
||||
ret = -ENOENT;
|
||||
goto put_cpu_node;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -412,15 +412,17 @@ void device_set_wakeup_capable(struct device *dev, bool capable)
|
|||
if (!!dev->power.can_wakeup == !!capable)
|
||||
return;
|
||||
|
||||
dev->power.can_wakeup = capable;
|
||||
if (device_is_registered(dev) && !list_empty(&dev->power.entry)) {
|
||||
if (capable) {
|
||||
if (wakeup_sysfs_add(dev))
|
||||
return;
|
||||
int ret = wakeup_sysfs_add(dev);
|
||||
|
||||
if (ret)
|
||||
dev_info(dev, "Wakeup sysfs attributes not added\n");
|
||||
} else {
|
||||
wakeup_sysfs_remove(dev);
|
||||
}
|
||||
}
|
||||
dev->power.can_wakeup = capable;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(device_set_wakeup_capable);
|
||||
|
||||
|
|
|
|||
|
|
@ -349,6 +349,36 @@ static const struct rockchip_iodomain_soc_data soc_data_rk3399_pmu = {
|
|||
.init = rk3399_pmu_iodomain_init,
|
||||
};
|
||||
|
||||
static const struct rockchip_iodomain_soc_data soc_data_rv1108 = {
|
||||
.grf_offset = 0x404,
|
||||
.supply_names = {
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
"vccio1",
|
||||
"vccio2",
|
||||
"vccio3",
|
||||
"vccio5",
|
||||
"vccio6",
|
||||
},
|
||||
|
||||
};
|
||||
|
||||
static const struct rockchip_iodomain_soc_data soc_data_rv1108_pmu = {
|
||||
.grf_offset = 0x104,
|
||||
.supply_names = {
|
||||
"pmu",
|
||||
},
|
||||
};
|
||||
|
||||
static const struct of_device_id rockchip_iodomain_match[] = {
|
||||
{
|
||||
.compatible = "rockchip,rk3188-io-voltage-domain",
|
||||
|
|
@ -382,6 +412,14 @@ static const struct of_device_id rockchip_iodomain_match[] = {
|
|||
.compatible = "rockchip,rk3399-pmu-io-voltage-domain",
|
||||
.data = (void *)&soc_data_rk3399_pmu
|
||||
},
|
||||
{
|
||||
.compatible = "rockchip,rv1108-io-voltage-domain",
|
||||
.data = (void *)&soc_data_rv1108
|
||||
},
|
||||
{
|
||||
.compatible = "rockchip,rv1108-pmu-io-voltage-domain",
|
||||
.data = (void *)&soc_data_rv1108_pmu
|
||||
},
|
||||
{ /* sentinel */ },
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, rockchip_iodomain_match);
|
||||
|
|
|
|||
|
|
@ -43,6 +43,7 @@ struct genpd_power_state {
|
|||
s64 power_on_latency_ns;
|
||||
s64 residency_ns;
|
||||
struct fwnode_handle *fwnode;
|
||||
ktime_t idle_time;
|
||||
};
|
||||
|
||||
struct genpd_lock_ops;
|
||||
|
|
@ -78,6 +79,8 @@ struct generic_pm_domain {
|
|||
unsigned int state_count; /* number of states */
|
||||
unsigned int state_idx; /* state that genpd will go to when off */
|
||||
void *free; /* Free the state that was allocated for default */
|
||||
ktime_t on_time;
|
||||
ktime_t accounting_time;
|
||||
const struct genpd_lock_ops *lock_ops;
|
||||
union {
|
||||
struct mutex mlock;
|
||||
|
|
|
|||
|
|
@ -22,15 +22,21 @@
|
|||
#include <linux/spinlock.h>
|
||||
#include <linux/syscore_ops.h>
|
||||
|
||||
static DEFINE_RWLOCK(cpu_pm_notifier_lock);
|
||||
static RAW_NOTIFIER_HEAD(cpu_pm_notifier_chain);
|
||||
static ATOMIC_NOTIFIER_HEAD(cpu_pm_notifier_chain);
|
||||
|
||||
static int cpu_pm_notify(enum cpu_pm_event event, int nr_to_call, int *nr_calls)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = __raw_notifier_call_chain(&cpu_pm_notifier_chain, event, NULL,
|
||||
/*
|
||||
* __atomic_notifier_call_chain has a RCU read critical section, which
|
||||
* could be disfunctional in cpu idle. Copy RCU_NONIDLE code to let
|
||||
* RCU know this.
|
||||
*/
|
||||
rcu_irq_enter_irqson();
|
||||
ret = __atomic_notifier_call_chain(&cpu_pm_notifier_chain, event, NULL,
|
||||
nr_to_call, nr_calls);
|
||||
rcu_irq_exit_irqson();
|
||||
|
||||
return notifier_to_errno(ret);
|
||||
}
|
||||
|
|
@ -47,14 +53,7 @@ static int cpu_pm_notify(enum cpu_pm_event event, int nr_to_call, int *nr_calls)
|
|||
*/
|
||||
int cpu_pm_register_notifier(struct notifier_block *nb)
|
||||
{
|
||||
unsigned long flags;
|
||||
int ret;
|
||||
|
||||
write_lock_irqsave(&cpu_pm_notifier_lock, flags);
|
||||
ret = raw_notifier_chain_register(&cpu_pm_notifier_chain, nb);
|
||||
write_unlock_irqrestore(&cpu_pm_notifier_lock, flags);
|
||||
|
||||
return ret;
|
||||
return atomic_notifier_chain_register(&cpu_pm_notifier_chain, nb);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(cpu_pm_register_notifier);
|
||||
|
||||
|
|
@ -69,14 +68,7 @@ EXPORT_SYMBOL_GPL(cpu_pm_register_notifier);
|
|||
*/
|
||||
int cpu_pm_unregister_notifier(struct notifier_block *nb)
|
||||
{
|
||||
unsigned long flags;
|
||||
int ret;
|
||||
|
||||
write_lock_irqsave(&cpu_pm_notifier_lock, flags);
|
||||
ret = raw_notifier_chain_unregister(&cpu_pm_notifier_chain, nb);
|
||||
write_unlock_irqrestore(&cpu_pm_notifier_lock, flags);
|
||||
|
||||
return ret;
|
||||
return atomic_notifier_chain_unregister(&cpu_pm_notifier_chain, nb);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(cpu_pm_unregister_notifier);
|
||||
|
||||
|
|
@ -100,7 +92,6 @@ int cpu_pm_enter(void)
|
|||
int nr_calls;
|
||||
int ret = 0;
|
||||
|
||||
read_lock(&cpu_pm_notifier_lock);
|
||||
ret = cpu_pm_notify(CPU_PM_ENTER, -1, &nr_calls);
|
||||
if (ret)
|
||||
/*
|
||||
|
|
@ -108,7 +99,6 @@ int cpu_pm_enter(void)
|
|||
* PM entry who are notified earlier to prepare for it.
|
||||
*/
|
||||
cpu_pm_notify(CPU_PM_ENTER_FAILED, nr_calls - 1, NULL);
|
||||
read_unlock(&cpu_pm_notifier_lock);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
|
@ -128,13 +118,7 @@ EXPORT_SYMBOL_GPL(cpu_pm_enter);
|
|||
*/
|
||||
int cpu_pm_exit(void)
|
||||
{
|
||||
int ret;
|
||||
|
||||
read_lock(&cpu_pm_notifier_lock);
|
||||
ret = cpu_pm_notify(CPU_PM_EXIT, -1, NULL);
|
||||
read_unlock(&cpu_pm_notifier_lock);
|
||||
|
||||
return ret;
|
||||
return cpu_pm_notify(CPU_PM_EXIT, -1, NULL);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(cpu_pm_exit);
|
||||
|
||||
|
|
@ -159,7 +143,6 @@ int cpu_cluster_pm_enter(void)
|
|||
int nr_calls;
|
||||
int ret = 0;
|
||||
|
||||
read_lock(&cpu_pm_notifier_lock);
|
||||
ret = cpu_pm_notify(CPU_CLUSTER_PM_ENTER, -1, &nr_calls);
|
||||
if (ret)
|
||||
/*
|
||||
|
|
@ -167,7 +150,6 @@ int cpu_cluster_pm_enter(void)
|
|||
* PM entry who are notified earlier to prepare for it.
|
||||
*/
|
||||
cpu_pm_notify(CPU_CLUSTER_PM_ENTER_FAILED, nr_calls - 1, NULL);
|
||||
read_unlock(&cpu_pm_notifier_lock);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
|
@ -190,13 +172,7 @@ EXPORT_SYMBOL_GPL(cpu_cluster_pm_enter);
|
|||
*/
|
||||
int cpu_cluster_pm_exit(void)
|
||||
{
|
||||
int ret;
|
||||
|
||||
read_lock(&cpu_pm_notifier_lock);
|
||||
ret = cpu_pm_notify(CPU_CLUSTER_PM_EXIT, -1, NULL);
|
||||
read_unlock(&cpu_pm_notifier_lock);
|
||||
|
||||
return ret;
|
||||
return cpu_pm_notify(CPU_CLUSTER_PM_EXIT, -1, NULL);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(cpu_cluster_pm_exit);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue