linux-kernel - Re: [PATCH] USB HID: Add disabled wakeup from s3 by touchpad on byd zhaoxin notebook

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Date:   Wed, 19 Aug 2020 14:08:56 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     penghao <penghao@...ontech.com>
Cc:     jikos@...nel.org, benjamin.tissoires@...hat.com,
        linux-usb@...r.kernel.org, linux-input@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] USB HID: Add disabled wakeup from s3 by touchpad on byd
 zhaoxin notebook

On Wed, Aug 19, 2020 at 07:51:01PM +0800, penghao wrote:
> BYD Notebook built-in touch pad, USB interface,so disabled,the touch pad
> device idVendor 0x0c45 idProduct 0x7056
> 
> Signed-off-by: penghao <penghao@...ontech.com>
> ---
>  drivers/hid/usbhid/hid-core.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
> index 492dd641a25d..630a3cad211f 100644
> --- a/drivers/hid/usbhid/hid-core.c
> +++ b/drivers/hid/usbhid/hid-core.c
> @@ -1193,7 +1193,13 @@ static int usbhid_start(struct hid_device *hid)
>  			interface->desc.bInterfaceProtocol ==
>  				USB_INTERFACE_PROTOCOL_KEYBOARD) {
>  		usbhid_set_leds(hid);
> -		device_set_wakeup_enable(&dev->dev, 1);
> +		/*
> +		 * USB HID: Add disabled touchpad wakeup on byd zhaoxin notebook
> +		 */
> +		if ((hid->vendor == 0x0c45) && (hid->product == 0x7056))
> +			device_set_wakeup_enable(&dev->dev, 0);
> +		else
> +			device_set_wakeup_enable(&dev->dev, 1);

Shouldn't this be a quirk somewhere instead of this core check?

thanks,

greg k-h