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From:   penghao <penghao@uniontech.com>
To:     gregkh@linuxfoundation.org
Cc:     johan@kernel.org, jonathan@jdcox.net, tomasz@meresinski.eu,
        penghao@uniontech.com, hdegoede@redhat.com, dlaz@chromium.org,
        kai.heng.feng@canonical.com, richard.o.dodd@gmail.com,
        kerneldev@karsmulder.nl, linux-usb@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH] USB: quirks: Add USB_QUIRK_DISCONNECT_SUSPEND quirk for Lenovo A630Z TIO built-in usb-audio card
Date:   Wed, 18 Nov 2020 19:06:39 +0800
Message-Id: <20201118110639.7455-1-penghao@uniontech.com>
Precedence: bulk

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.

Changes since v4
 - Fixed add a blank line

 Changes since v3
 - Fixed spelling error on appropriate

Changes since v2
 - Add Changes commit format

Changes since v1
 - Change subject form "ALSA" to "USB:"
 - Adjust to appropriate line

Signed-off-by: penghao <penghao@uniontech.com>
---
 drivers/usb/core/quirks.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 7c1198f80c23..26b852ae0d85 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -410,6 +410,10 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x1532, 0x0116), .driver_info =
 			USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
 
+	/* Lenovo ThinkCenter A630Z TI024Gen3 usb-audio */
+	{ USB_DEVICE(0x17ef, 0xa012), .driver_info =
+			USB_QUIRK_DISCONNECT_SUSPEND },
+
 	/* BUILDWIN Photo Frame */
 	{ USB_DEVICE(0x1908, 0x1315), .driver_info =
 			USB_QUIRK_HONOR_BNUMINTERFACES },
-- 
2.11.0