linux-kernel - Re: [PATCH] Input: gpio-keys

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Message-ID: <65d6350f-2cd8-c183-6d8b-dbb11ae31819@gmail.com>
Date:   Tue, 5 Feb 2019 14:02:49 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Jeffy Chen <jeffy.chen@...k-chips.com>,
        Rob Herring <robh@...nel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        "open list:INPUT (KEYBOARD, MOUSE, JOYSTICK, TOUCHSCREEN)..." 
        <linux-input@...r.kernel.org>
Subject: Re: [PATCH] Input: gpio-keys - Add shutdown callback

On 2/1/19 11:24 AM, Florian Fainelli wrote:
> 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@...il.com>
> ---
>  drivers/input/keyboard/gpio_keys.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)

Any feedback on this?

> 
> 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,
> 


-- 
Florian