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Commit 0061eff7 authored by Andrew Lunn's avatar Andrew Lunn Committed by Greg Kroah-Hartman
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usb: core: hub: Disable autosuspend for Cypress CY7C65632 



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@vger.kernel.org
Signed-off-by: default avatarAndrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20210614155524.2228800-1-andrew@lunn.ch


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 6f87c0e2

drivers/usb/core/hub.c

+7 −0
Original line number Diff line number Diff line
@@ -39,6 +39,8 @@ 
#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
@@ -5514,6 +5516,11 @@ static const struct usb_device_id hub_id_table[] = { 
      .idProduct = USB_PRODUCT_USB5534B,

      .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,