efHotAgingTrendMining environmentalHumidityAnalysis.c 朱俊杰 commit at 2021-03-01

efHotAgingTrendMining/analysisOfEnvironmentalFactors/environmentalHumidityAnalysis.c

@@ -797,3 +797,76 @@ int clkdm_wakeup(struct clockdomain *clkdm)
 	pr_debug("clockdomain: forcing wakeup on %s\n", clkdm->name);
 
 	spin_lock_irqsave(&clkdm->lock, flags);
+	clkdm->_flags &= ~_CLKDM_FLAG_HWSUP_ENABLED;
+	ret = arch_clkdm->clkdm_wakeup(clkdm);
+	ret |= pwrdm_state_switch(clkdm->pwrdm.ptr);
+	spin_unlock_irqrestore(&clkdm->lock, flags);
+	return ret;
+}
+
+/**
+ * clkdm_allow_idle - enable hwsup idle transitions for clkdm
+ * @clkdm: struct clockdomain *
+ *
+ * Allow the hardware to automatically switch the clockdomain @clkdm into
+ * active or idle states, as needed by downstream clocks.  If the
+ * clockdomain has any downstream clocks enabled in the clock
+ * framework, wkdep/sleepdep autodependencies are added; this is so
+ * device drivers can read and write to the device.  No return value.
+ */
+void clkdm_allow_idle(struct clockdomain *clkdm)
+{
+	unsigned long flags;
+
+	if (!clkdm)
+		return;
+
+	if (!(clkdm->flags & CLKDM_CAN_ENABLE_AUTO)) {
+		pr_debug("clock: %s: automatic idle transitions cannot be enabled\n",
+			 clkdm->name);
+		return;
+	}
+
+	if (!arch_clkdm || !arch_clkdm->clkdm_allow_idle)
+		return;
+
+	pr_debug("clockdomain: enabling automatic idle transitions for %s\n",
+		 clkdm->name);
+
+	spin_lock_irqsave(&clkdm->lock, flags);
+	clkdm->_flags |= _CLKDM_FLAG_HWSUP_ENABLED;
+	arch_clkdm->clkdm_allow_idle(clkdm);
+	pwrdm_state_switch(clkdm->pwrdm.ptr);
+	spin_unlock_irqrestore(&clkdm->lock, flags);
+}
+
+/**
+ * clkdm_deny_idle - disable hwsup idle transitions for clkdm
+ * @clkdm: struct clockdomain *
+ *
+ * Prevent the hardware from automatically switching the clockdomain
+ * @clkdm into inactive or idle states.  If the clockdomain has
+ * downstream clocks enabled in the clock framework, wkdep/sleepdep
+ * autodependencies are removed.  No return value.
+ */
+void clkdm_deny_idle(struct clockdomain *clkdm)
+{
+	unsigned long flags;
+
+	if (!clkdm)
+		return;
+
+	if (!(clkdm->flags & CLKDM_CAN_DISABLE_AUTO)) {
+		pr_debug("clockdomain: %s: automatic idle transitions cannot be disabled\n",
+			 clkdm->name);
+		return;
+	}
+
+	if (!arch_clkdm || !arch_clkdm->clkdm_deny_idle)
+		return;
+
+	pr_debug("clockdomain: disabling automatic idle transitions for %s\n",
+		 clkdm->name);
+
+	spin_lock_irqsave(&clkdm->lock, flags);
+	clkdm->_flags &= ~_CLKDM_FLAG_HWSUP_ENABLED;