---

yaml --- r: 256927 b: refs/heads/master c: b7b9592 h: refs/heads/master i: 256925: 3580b93 256923: 18caa8a 256919: 7983f2f 256911: 2dc38e8 256895: 4a4774f v: v3
git-mirror · Jul 2, 2011 · d2ff02d · d2ff02d
1 parent ec9689c
commit d2ff02d
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Showing 4 changed files with 63 additions and 5 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d4f2d87a8b46c14c4307c690c92bd08229f66ecf
+refs/heads/master: b7b95920aa2e89e655afe9913ee0e55855ceda90
diff --git a/trunk/drivers/base/power/clock_ops.c b/trunk/drivers/base/power/clock_ops.c
@@ -15,7 +15,7 @@
 #include <linux/slab.h>
 #include <linux/err.h>
 
-#ifdef CONFIG_PM_RUNTIME
+#ifdef CONFIG_PM
 
 struct pm_runtime_clk_data {
 	struct list_head clock_list;
@@ -191,6 +191,10 @@ void pm_runtime_clk_destroy(struct device *dev)
 	kfree(prd);
 }
 
+#endif /* CONFIG_PM */
+
+#ifdef CONFIG_PM_RUNTIME
+
 /**
  * pm_runtime_clk_acquire - Acquire a device clock.
  * @dev: Device whose clock is to be acquired.
@@ -330,6 +334,60 @@ static int pm_runtime_clk_notify(struct notifier_block *nb,
 
 #else /* !CONFIG_PM_RUNTIME */
 
+#ifdef CONFIG_PM
+
+/**
+ * pm_runtime_clk_suspend - Disable clocks in a device's PM clock list.
+ * @dev: Device to disable the clocks for.
+ */
+int pm_runtime_clk_suspend(struct device *dev)
+{
+	struct pm_runtime_clk_data *prd = __to_prd(dev);
+	struct pm_clock_entry *ce;
+
+	dev_dbg(dev, "%s()\n", __func__);
+
+	/* If there is no driver, the clocks are already disabled. */
+	if (!prd || !dev->driver)
+		return 0;
+
+	mutex_lock(&prd->lock);
+
+	list_for_each_entry_reverse(ce, &prd->clock_list, node)
+		clk_disable(ce->clk);
+
+	mutex_unlock(&prd->lock);
+
+	return 0;
+}
+
+/**
+ * pm_runtime_clk_resume - Enable clocks in a device's PM clock list.
+ * @dev: Device to enable the clocks for.
+ */
+int pm_runtime_clk_resume(struct device *dev)
+{
+	struct pm_runtime_clk_data *prd = __to_prd(dev);
+	struct pm_clock_entry *ce;
+
+	dev_dbg(dev, "%s()\n", __func__);
+
+	/* If there is no driver, the clocks should remain disabled. */
+	if (!prd || !dev->driver)
+		return 0;
+
+	mutex_lock(&prd->lock);
+
+	list_for_each_entry(ce, &prd->clock_list, node)
+		clk_enable(ce->clk);
+
+	mutex_unlock(&prd->lock);
+
+	return 0;
+}
+
+#endif /* CONFIG_PM */
+
 /**
  * enable_clock - Enable a device clock.
  * @dev: Device whose clock is to be enabled.

diff --git a/trunk/include/linux/pm_runtime.h b/trunk/include/linux/pm_runtime.h
@@ -251,7 +251,7 @@ struct pm_clk_notifier_block {
 	char *con_ids[];
 };
 
-#ifdef CONFIG_PM_RUNTIME_CLK
+#ifdef CONFIG_PM_CLK
 extern int pm_runtime_clk_init(struct device *dev);
 extern void pm_runtime_clk_destroy(struct device *dev);
 extern int pm_runtime_clk_add(struct device *dev, const char *con_id);

diff --git a/trunk/kernel/power/Kconfig b/trunk/kernel/power/Kconfig
@@ -224,9 +224,9 @@ config PM_OPP
 	  implementations a ready to use framework to manage OPPs.
 	  For more information, read <file:Documentation/power/opp.txt>
 
-config PM_RUNTIME_CLK
+config PM_CLK
 	def_bool y
-	depends on PM_RUNTIME && HAVE_CLK
+	depends on PM && HAVE_CLK
 
 config PM_GENERIC_DOMAINS
 	bool