linux-kernel - [PATCH] Changes since v1 - Change subject form "ALSA" to "USB:"

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Message-Id: <20201118065132.24772-1-penghao@uniontech.com>
Date:   Wed, 18 Nov 2020 14:51:32 +0800
From:   penghao <penghao@...ontech.com>
To:     gregkh@...uxfoundation.org
Cc:     johan@...nel.org, jonathan@...ox.net, tomasz@...esinski.eu,
        penghao@...ontech.com, hdegoede@...hat.com, dlaz@...omium.org,
        kai.heng.feng@...onical.com, richard.o.dodd@...il.com,
        kerneldev@...smulder.nl, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] Changes since v1  - Change subject form "ALSA" to "USB:"  - Adjust to approoriate line

USB: quirks: Add USB_QUIRK_DISCONNECT_SUSPEND quirk for
Lenovo A630Z TIO built-in usb-audio card

Add a USB_QUIRK_DISCONNECT_SUSPEND quirk for the Lenovo TIO built-in
usb-audio. when A630Z going into S3,the system immediately wakeup 7-8
seconds later by usb-audio disconnect interrupt to avoids the issue.

Seeking a better fix, we've tried a lot of things, including:
 - Check that the device's power/wakeup is disabled
 - Check that remote wakeup is off at the USB level
 - All the quirks in drivers/usb/core/quirks.c
   e.g. USB_QUIRK_RESET_RESUME,
        USB_QUIRK_RESET,
        USB_QUIRK_IGNORE_REMOTE_WAKEUP,
        USB_QUIRK_NO_LPM.

but none of that makes any difference.

There are no errors in the logs showing any suspend/resume-related issues.
When the system wakes up due to the modem, log-wise it appears to be a
normal resume.

Introduce a quirk to disable the port during suspend when the modem is
detected.

Signed-off-by: penghao <penghao@...ontech.com>
---
 drivers/usb/core/quirks.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 7c1198f80c23..8d18e89f9eb0 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -410,7 +410,11 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x1532, 0x0116), .driver_info =
 			USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
 
-	/* BUILDWIN Photo Frame */
+/* Lenovo - ThinkCenter A630Z TI024Gen3 usb-audio card */
+{ USB_DEVICE(0x17ef, 0x0xa012), .driver_info =
+USB_QUIRK_DISCONNECT_SUSPEND },
+
+    /* BUILDWIN Photo Frame */
 	{ USB_DEVICE(0x1908, 0x1315), .driver_info =
 			USB_QUIRK_HONOR_BNUMINTERFACES },
 
-- 
2.11.0