diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c
--- a/drivers/input/keyboard/omap4-keypad.c
+++ b/drivers/input/keyboard/omap4-keypad.c
@@ -60,6 +60,7 @@
 	((((dbms) * 1000) / ((1 << ((ptv) + 1)) * (1000000 / 32768))) - 1)
 #define OMAP4_VAL_DEBOUNCINGTIME_16MS					\
 	OMAP4_KEYPAD_DEBOUNCINGTIME_MS(16, OMAP4_KEYPAD_PTV_DIV_128)
+#define OMAP4_KEYPAD_AUTOIDLE_MS	50	/* Approximate measured time */
 
 enum {
 	KBD_REVISION_OMAP4 = 0,
@@ -71,6 +72,7 @@ struct omap4_keypad {
 
 	void __iomem *base;
 	unsigned int irq;
+	struct mutex lock;		/* for key scan */
 
 	unsigned int rows;
 	unsigned int cols;
@@ -154,17 +156,19 @@ static irqreturn_t omap4_keypad_irq_handler(int irq, void *dev_id)
 	return IRQ_NONE;
 }
 
-static irqreturn_t omap4_keypad_irq_thread_fn(int irq, void *dev_id)
+static bool omap4_keypad_scan_keys(struct omap4_keypad *keypad_data, bool clear)
 {
-	struct omap4_keypad *keypad_data = dev_id;
 	struct input_dev *input_dev = keypad_data->input;
 	int keys_up, keys_down;
 	u32 low, high;
-	u64 keys;
+	u64 keys = 0;
 
-	low = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE31_0);
-	high = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE63_32);
-	keys = low | (u64)high << 32;
+	mutex_lock(&keypad_data->lock);
+	if (!clear) {
+		low = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE31_0);
+		high = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE63_32);
+		keys = low | (u64)high << 32;
+	}
 
 	/* Scan for key up events for lost key-up interrupts */
 	keys_up = omap4_keypad_scan_state(keypad_data, keys, false);
@@ -176,18 +180,49 @@ static irqreturn_t omap4_keypad_irq_thread_fn(int irq, void *dev_id)
 
 	keypad_data->keys = keys;
 
+	mutex_unlock(&keypad_data->lock);
+
+	return keys_down;
+}
+
+static irqreturn_t omap4_keypad_irq_thread_fn(int irq, void *dev_id)
+{
+	struct omap4_keypad *keypad_data = dev_id;
+	struct device *dev = keypad_data->input->dev.parent;
+	bool down_events;
+	int error;
+
+	error = pm_runtime_get_sync(dev);
+	if (error < 0) {
+		pm_runtime_put_noidle(dev);
+
+		return IRQ_NONE;
+	}
+
+	down_events = omap4_keypad_scan_keys(keypad_data, false);
+
 	/* clear pending interrupts */
 	kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,
 			 kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS));
 
+	pm_runtime_mark_last_busy(dev);
+	pm_runtime_put_autosuspend(dev);
+
 	return IRQ_HANDLED;
 }
 
 static int omap4_keypad_open(struct input_dev *input)
 {
 	struct omap4_keypad *keypad_data = input_get_drvdata(input);
+	struct device *dev = input->dev.parent;
+	int error;
 
-	pm_runtime_get_sync(input->dev.parent);
+	error = pm_runtime_get_sync(dev);
+	if (error < 0) {
+		pm_runtime_put_noidle(dev);
+
+		return error;
+	}
 
 	disable_irq(keypad_data->irq);
 
@@ -206,6 +241,9 @@ static int omap4_keypad_open(struct input_dev *input)
 
 	enable_irq(keypad_data->irq);
 
+	pm_runtime_mark_last_busy(dev);
+	pm_runtime_put_autosuspend(dev);
+
 	return 0;
 }
 
@@ -223,14 +261,23 @@ static void omap4_keypad_stop(struct omap4_keypad *keypad_data)
 
 static void omap4_keypad_close(struct input_dev *input)
 {
-	struct omap4_keypad *keypad_data;
+	struct omap4_keypad *keypad_data = input_get_drvdata(input);
+	struct device *dev = input->dev.parent;
+	int error;
+
+	error = pm_runtime_get_sync(dev);
+	if (error < 0) {
+		pm_runtime_put_noidle(dev);
+
+		return;
+	}
 
-	keypad_data = input_get_drvdata(input);
 	disable_irq(keypad_data->irq);
 	omap4_keypad_stop(keypad_data);
 	enable_irq(keypad_data->irq);
 
-	pm_runtime_put_sync(input->dev.parent);
+	pm_runtime_mark_last_busy(dev);
+	pm_runtime_put_autosuspend(dev);
 }
 
 static int omap4_keypad_parse_dt(struct device *dev,
@@ -301,6 +348,7 @@ static int omap4_keypad_probe(struct platform_device *pdev)
 	}
 
 	keypad_data->irq = irq;
+	mutex_init(&keypad_data->lock);
 
 	error = omap4_keypad_parse_dt(&pdev->dev, keypad_data);
 	if (error)
@@ -320,6 +368,8 @@ static int omap4_keypad_probe(struct platform_device *pdev)
 		goto err_release_mem;
 	}
 
+	pm_runtime_use_autosuspend(&pdev->dev);
+	pm_runtime_set_autosuspend_delay(&pdev->dev, OMAP4_KEYPAD_AUTOIDLE_MS);
 	pm_runtime_enable(&pdev->dev);
 
 	/*
@@ -337,7 +387,6 @@ static int omap4_keypad_probe(struct platform_device *pdev)
 			/* Ensure device does not raise interrupts */
 			omap4_keypad_stop(keypad_data);
 		}
-		pm_runtime_put_sync(&pdev->dev);
 	}
 	if (error)
 		goto err_pm_disable;
@@ -406,6 +455,9 @@ static int omap4_keypad_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, keypad_data);
 
+	pm_runtime_mark_last_busy(&pdev->dev);
+	pm_runtime_put_autosuspend(&pdev->dev);
+
 	return 0;
 
 err_free_irq:
@@ -415,6 +467,8 @@ static int omap4_keypad_probe(struct platform_device *pdev)
 err_free_input:
 	input_free_device(input_dev);
 err_pm_disable:
+	pm_runtime_put_sync(&pdev->dev);
+	pm_runtime_dont_use_autosuspend(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 	iounmap(keypad_data->base);
 err_release_mem:
@@ -433,6 +487,7 @@ static int omap4_keypad_remove(struct platform_device *pdev)
 
 	free_irq(keypad_data->irq, keypad_data);
 
+	pm_runtime_dont_use_autosuspend(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 
 	input_unregister_device(keypad_data->input);
@@ -454,6 +509,34 @@ static const struct of_device_id omap_keypad_dt_match[] = {
 };
 MODULE_DEVICE_TABLE(of, omap_keypad_dt_match);
 
+/*
+ * Errata ID i689 "1.32 Keyboard Key Up Event Can Be Missed".
+ * Interrupt may not happen for key-up events.
+ */
+static int __maybe_unused omap4_keypad_runtime_suspend(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);
+	bool events;
+	u32 active;
+
+	active = kbd_readl(keypad_data, OMAP4_KBD_STATEMACHINE);
+	if (active) {
+		pm_runtime_mark_last_busy(dev);
+		return -EBUSY;
+	}
+
+	events = omap4_keypad_scan_keys(keypad_data, true);
+	if (events)
+		dev_info(dev, "cleared stuck events on idle\n");
+
+	return 0;
+}
+
+static const struct dev_pm_ops omap4_keypad_pm_ops = {
+	SET_RUNTIME_PM_OPS(omap4_keypad_runtime_suspend, NULL, NULL)
+};
+
 static struct platform_driver omap4_keypad_driver = {
 	.probe		= omap4_keypad_probe,
 	.remove		= omap4_keypad_remove,
