linux-kernel - [PATCH V2] usb: quirks: Add DELAY_INIT and NO_LPM for Prolific Mass Storage Card Reader

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Message-Id: <20250304070757.139473-1-limiao870622@163.com>
Date: Tue,  4 Mar 2025 15:07:57 +0800
From: Miao Li <limiao870622@....com>
To: gregkh@...uxfoundation.org
Cc: linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	limiao870622@....com,
	Miao Li <limiao@...inos.cn>
Subject: [PATCH V2] usb: quirks: Add DELAY_INIT and NO_LPM for Prolific Mass Storage Card Reader

From: Miao Li <limiao@...inos.cn>

When used on Huawei hisi platforms, Prolific Mass Storage Card Reader
which the VID:PID is in 067b:2731 might fail to enumerate at boot time
and doesn't work well with LPM enabled, combination quirks:
USB_QUIRK_DELAY_INIT + USB_QUIRK_NO_LPM
fixed the problems.

Signed-off-by: Miao Li <limiao@...inos.cn>
---
V1 -> V2: Change device description information
---
 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 dfcfc142bd5e..8efbacc5bc34 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -341,6 +341,10 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x0638, 0x0a13), .driver_info =
 	  USB_QUIRK_STRING_FETCH_255 },
 
+	/* Prolific Single-LUN Mass Storage Card Reader */
+	{ USB_DEVICE(0x067b, 0x2731), .driver_info = USB_QUIRK_DELAY_INIT |
+	  USB_QUIRK_NO_LPM },
+
 	/* Saitek Cyborg Gold Joystick */
 	{ USB_DEVICE(0x06a3, 0x0006), .driver_info =
 			USB_QUIRK_CONFIG_INTF_STRINGS },
-- 
2.25.1