linux-kernel - [PATCH 14216/14216] ALSA: usb-audio: This patch for prevent auto wakeup from s3 trig by usb disconnect signal from Lenovo Thinkcentre TI024Gen3 USB-audio.

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Date:   Sat, 25 Jul 2020 12:01:55 +0800
From:   penghao <penghao@...ontech.com>
To:     perex@...ex.cz, tiwai@...e.com, gregkh@...uxfoundation.org,
        alsa-devel@...a-project.org
Cc:     linux-kernel@...r.kernel.org, phz0008@....com,
        penghao@...ontech.com, "penghao@...pin.com" <penghao@...pin.com>
Subject: [PATCH 14216/14216] ALSA: usb-audio: This patch for prevent auto wakeup from s3 trig by usb disconnect signal from Lenovo Thinkcentre TI024Gen3  USB-audio.

From: "penghao@...pin.com" <penghao@...pin.com>

 TI024Gen3 USB-audio is controlled by TI024Gen3,when TI024Gens
 enter sleep mode, USB-audio will disconnect from USB bus port,
 so disabled the /sys/bus/usb/*/power/wakeup Fixesimmediately
 wakup form s3 state

Signed-off-by: penghao@...ontech.com <penghao@...ontech.com>
Signed-off-by: penghao@...pin.com <penghao@...pin.com>
---
 sound/usb/card.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sound/usb/card.c b/sound/usb/card.c
index 2644a5ae2b75..969c3809e051 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -640,6 +640,12 @@ static int usb_audio_probe(struct usb_interface *intf,
 		}
 	}
 	dev_set_drvdata(&dev->dev, chip);
+	/*
+	 * ALSA: usb-audio: Add prevent wakeup from s3 state trig by lenovo
+	 * ThinkCentre TI024Gen3 USB-audio
+	 */
+	if ((usb_id->idVendor == 0x17ef) && (usb_id->idProduct == 0xa012))
+		device_set_wakeup_enable(&dev->dev, 0);
 
 	/*
 	 * For devices with more than one control interface, we assume the
@@ -914,3 +920,4 @@ static struct usb_driver usb_audio_driver = {
 };
 
 module_usb_driver(usb_audio_driver);
+
-- 
2.11.0