This is a note to let you know that I've just added the patch titled
usb: core: hub: Disable autosuspend for Cypress CY7C65632
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-core-hub-disable-autosuspend-for-cypress-cy7c65632.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a7d8d1c7a7f73e780aa9ae74926ae5985b2f895f Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@xxxxxxx>
Date: Mon, 14 Jun 2021 17:55:23 +0200
Subject: usb: core: hub: Disable autosuspend for Cypress CY7C65632
From: Andrew Lunn <andrew@xxxxxxx>
commit a7d8d1c7a7f73e780aa9ae74926ae5985b2f895f upstream.
The Cypress CY7C65632 appears to have an issue with auto suspend and
detecting devices, not too dissimilar to the SMSC 5534B hub. It is
easiest to reproduce by connecting multiple mass storage devices to
the hub at the same time. On a Lenovo Yoga, around 1 in 3 attempts
result in the devices not being detected. It is however possible to
make them appear using lsusb -v.
Disabling autosuspend for this hub resolves the issue.
Fixes: 1208f9e1d758 ("USB: hub: Fix the broken detection of USB3 device in SMSC hub")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Andrew Lunn <andrew@xxxxxxx>
Link: https://lore.kernel.org/r/20210614155524.2228800-1-andrew@xxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/core/hub.c | 7 +++++++
1 file changed, 7 insertions(+)
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -40,6 +40,8 @@
#define USB_VENDOR_GENESYS_LOGIC 0x05e3
#define USB_VENDOR_SMSC 0x0424
#define USB_PRODUCT_USB5534B 0x5534
+#define USB_VENDOR_CYPRESS 0x04b4
+#define USB_PRODUCT_CY7C65632 0x6570
#define HUB_QUIRK_CHECK_PORT_AUTOSUSPEND 0x01
#define HUB_QUIRK_DISABLE_AUTOSUSPEND 0x02
@@ -5644,6 +5646,11 @@ static const struct usb_device_id hub_id
.bInterfaceClass = USB_CLASS_HUB,
.driver_info = HUB_QUIRK_DISABLE_AUTOSUSPEND},
{ .match_flags = USB_DEVICE_ID_MATCH_VENDOR
+ | USB_DEVICE_ID_MATCH_PRODUCT,
+ .idVendor = USB_VENDOR_CYPRESS,
+ .idProduct = USB_PRODUCT_CY7C65632,
+ .driver_info = HUB_QUIRK_DISABLE_AUTOSUSPEND},
+ { .match_flags = USB_DEVICE_ID_MATCH_VENDOR
| USB_DEVICE_ID_MATCH_INT_CLASS,
.idVendor = USB_VENDOR_GENESYS_LOGIC,
.bInterfaceClass = USB_CLASS_HUB,
Patches currently in stable-queue which might be from andrew@xxxxxxx are
queue-5.10/usb-core-hub-disable-autosuspend-for-cypress-cy7c65632.patch
