[PATCH] Input: gpio-keys - Add shutdown callback

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On some platforms (e.g.: ARCH_BRCMSTB) it is possible to enter
"poweroff" while leaving some wake-up sources enabled such as key
presses in order to allow for the system to wake-up.

Wire up a .shutdown() callback which calls into the existing
gpio_keys_suspend() since the logic is essentially the same.

Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
---
 drivers/input/keyboard/gpio_keys.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index 492a971b95b5..6cd199e8a370 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -1015,8 +1015,18 @@ static int __maybe_unused gpio_keys_resume(struct device *dev)
 
 static SIMPLE_DEV_PM_OPS(gpio_keys_pm_ops, gpio_keys_suspend, gpio_keys_resume);
 
+static void gpio_keys_shutdown(struct platform_device *pdev)
+{
+	int ret;
+
+	ret = gpio_keys_suspend(&pdev->dev);
+	if (ret)
+		dev_err(&pdev->dev, "failed to shutdown\n");
+}
+
 static struct platform_driver gpio_keys_device_driver = {
 	.probe		= gpio_keys_probe,
+	.shutdown	= gpio_keys_shutdown,
 	.driver		= {
 		.name	= "gpio-keys",
 		.pm	= &gpio_keys_pm_ops,
-- 
2.17.1




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