From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.kernel.org ([198.145.29.99]:36970 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726384AbeKZVym (ORCPT ); Mon, 26 Nov 2018 16:54:42 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Kai-Heng Feng Subject: [PATCH 4.14 54/62] USB: quirks: Add no-lpm quirk for Raydium touchscreens Date: Mon, 26 Nov 2018 11:51:35 +0100 Message-Id: <20181126105054.722377016@linuxfoundation.org> In-Reply-To: <20181126105050.592727680@linuxfoundation.org> References: <20181126105050.592727680@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kai-Heng Feng commit deefd24228a172d1b27d4a9adbfd2cdacd60ae64 upstream. Raydium USB touchscreen fails to set config if LPM is enabled: [ 2.030658] usb 1-8: New USB device found, idVendor=2386, idProduct=3119 [ 2.030659] usb 1-8: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 2.030660] usb 1-8: Product: Raydium Touch System [ 2.030661] usb 1-8: Manufacturer: Raydium Corporation [ 7.132209] usb 1-8: can't set config #1, error -110 Same behavior can be observed on 2386:3114. Raydium claims the touchscreen supports LPM under Windows, so I used Microsoft USB Test Tools (MUTT) [1] to check its LPM status. MUTT shows that the LPM doesn't work under Windows, either. So let's just disable LPM for Raydium touchscreens. [1] https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/usb-test-tools Signed-off-by: Kai-Heng Feng Cc: stable Signed-off-by: Greg Kroah-Hartman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/quirks.c | 5 +++++ 1 file changed, 5 insertions(+) --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -263,6 +263,11 @@ static const struct usb_device_id usb_qu { USB_DEVICE(0x2040, 0x7200), .driver_info = USB_QUIRK_CONFIG_INTF_STRINGS }, + /* Raydium Touchscreen */ + { USB_DEVICE(0x2386, 0x3114), .driver_info = USB_QUIRK_NO_LPM }, + + { USB_DEVICE(0x2386, 0x3119), .driver_info = USB_QUIRK_NO_LPM }, + /* DJI CineSSD */ { USB_DEVICE(0x2ca3, 0x0031), .driver_info = USB_QUIRK_NO_LPM },