From 86c64761ef6e78b498a87c08efa1fd85db88d8df Mon Sep 17 00:00:00 2001
From: shengfei Xu <xsf@rock-chips.com>
Date: Sat, 13 Nov 2021 03:01:21 +0000
Subject: [PATCH] Input: powerkey: rk8xx: check the powerkey is available

Signed-off-by: shengfei Xu <xsf@rock-chips.com>
Change-Id: I24162089c4ada3defd0a4cb066a632316934327b
---
 drivers/input/misc/rk805-pwrkey.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/input/misc/rk805-pwrkey.c b/drivers/input/misc/rk805-pwrkey.c
index 3fb64dbda1a2..02e7b6e29429 100644
--- a/drivers/input/misc/rk805-pwrkey.c
+++ b/drivers/input/misc/rk805-pwrkey.c
@@ -13,6 +13,7 @@
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 
 static irqreturn_t pwrkey_fall_irq(int irq, void *_pwr)
@@ -39,8 +40,15 @@ static int rk805_pwrkey_probe(struct platform_device *pdev)
 {
 	struct input_dev *pwr;
 	int fall_irq, rise_irq;
+	struct device_node *np;
 	int err;
 
+	np = of_get_child_by_name(pdev->dev.parent->of_node, "pwrkey");
+	if (np && !of_device_is_available(np)) {
+		dev_info(&pdev->dev, "device is disabled\n");
+		return -EINVAL;
+	}
+
 	pwr = devm_input_allocate_device(&pdev->dev);
 	if (!pwr) {
 		dev_err(&pdev->dev, "Can't allocate power button\n");