]> git.baikalelectronics.ru Git - kernel.git/commitdiff
usb: core: hub: Disable autosuspend for Cypress CY7C65632
authorAndrew Lunn <andrew@lunn.ch>
Mon, 14 Jun 2021 15:55:23 +0000 (17:55 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 17 Jun 2021 13:34:21 +0000 (15:34 +0200)
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>
drivers/usb/core/hub.c

index fc7d6cdacf16b91921aa4bdb3cf427516044c995..df8e69e60aaf7a1d8f917ddc5609cbb9f4db4bad 100644 (file)
@@ -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
 
@@ -5697,6 +5699,11 @@ 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,