unimore/kernel-hacking-2024-linux-steffo
unimore/kernel-hacking-2024-linux-steffo
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Merge branch 'pm-clk'

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* pm-clk:
  PM / clk: Fix crash in clocks management code if !CONFIG_PM_RUNTIME
This commit is contained in:
Rafael J. Wysocki 2014-10-07 01:18:58 +02:00
commit 9f1a053296
1 changed files with 15 additions and 4 deletions
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19
drivers/base/power/clock_ops.c
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@ -368,8 +368,13 @@ int pm_clk_suspend(struct device *dev)
spin_lock_irqsave(&psd->lock, flags);
list_for_each_entry_reverse(ce, &psd->clock_list, node)
clk_disable(ce->clk);
list_for_each_entry_reverse(ce, &psd->clock_list, node) {
if (ce->status < PCE_STATUS_ERROR) {
if (ce->status == PCE_STATUS_ENABLED)
clk_disable(ce->clk);
ce->status = PCE_STATUS_ACQUIRED;
}
}
spin_unlock_irqrestore(&psd->lock, flags);
@ -385,6 +390,7 @@ int pm_clk_resume(struct device *dev)
struct pm_subsys_data *psd = dev_to_psd(dev);
struct pm_clock_entry *ce;
unsigned long flags;
int ret;
dev_dbg(dev, "%s()\n", __func__);
@ -394,8 +400,13 @@ int pm_clk_resume(struct device *dev)
spin_lock_irqsave(&psd->lock, flags);
list_for_each_entry(ce, &psd->clock_list, node)
__pm_clk_enable(dev, ce->clk);
list_for_each_entry(ce, &psd->clock_list, node) {
if (ce->status < PCE_STATUS_ERROR) {
ret = __pm_clk_enable(dev, ce->clk);
if (!ret)
ce->status = PCE_STATUS_ENABLED;
}
}
spin_unlock_irqrestore(&psd->lock, flags);