summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorAndrew Lunn <andrew@lunn.ch>2021-06-14 17:55:23 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-06-17 15:34:21 +0200
commita7d8d1c7a7f73e780aa9ae74926ae5985b2f895f (patch)
tree9bd51617cea992583233626eff94b2a22f99c3bc
parent60ed39db6e861f4a42dfa75f9b53f10093f6d672 (diff)
usb: core: hub: Disable autosuspend for Cypress CY7C65632
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@vger.kernel.org Signed-off-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20210614155524.2228800-1-andrew@lunn.ch Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/core/hub.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index fc7d6cdacf16..df8e69e60aaf 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -41,6 +41,8 @@
#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
@@ -5698,6 +5700,11 @@ static const struct usb_device_id hub_id_table[] = {
.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,