input: pm8xxx-pwrkey: Update key press status during probe

Power key could be in pressed state during boot. Set the flag
to track the press status properly by reading press irq status.

CRs-fixed: 404018
Change-Id: I93a8584420002d9cb399484b3ac77fa2ed954690
Signed-off-by: Mohan Pallaka <mpallaka@codeaurora.org>

drivers/input/misc/pmic8xxx-pwrkey.c

@@ -178,10 +178,22 @@ static int __devinit pmic8xxx_pwrkey_probe(struct platform_device *pdev)
 	pwrkey->key_press_irq = key_press_irq;
 	pwrkey->key_release_irq = key_release_irq;
 	pwrkey->pwr = pwr;
-	pwrkey->press = false;
 
 	platform_set_drvdata(pdev, pwrkey);
 
+	/* check power key status during boot */
+	err = pm8xxx_read_irq_stat(pdev->dev.parent, key_press_irq);
+	if (err < 0) {
+		dev_err(&pdev->dev, "reading irq status failed\n");
+		goto unreg_input_dev;
+	}
+	pwrkey->press = !!err;
+
+	if (pwrkey->press) {
+		input_report_key(pwrkey->pwr, KEY_POWER, 1);
+		input_sync(pwrkey->pwr);
+	}
+
 	err = request_any_context_irq(key_press_irq, pwrkey_press_irq,
 		IRQF_TRIGGER_RISING, "pmic8xxx_pwrkey_press", pwrkey);
 	if (err < 0) {