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authorEugeniu Rosca <erosca@de.adit-jv.com>2020-05-15 00:02:46 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-05-15 15:41:13 +0200
commit76e1ef1d81a4129d7e2fb8c48c83b166d1c8e040 (patch)
treec1ae6dd3db95d4a5a268b8e0fab0bcf8b019c36f /drivers
parent86e1cf7d17cc8f87fc050bd9d7917b2bc47acd45 (diff)
downloadlinux-sh-76e1ef1d81a4129d7e2fb8c48c83b166d1c8e040.tar.gz
usb: core: hub: limit HUB_QUIRK_DISABLE_AUTOSUSPEND to USB5534B
On Tue, May 12, 2020 at 09:36:07PM +0800, Kai-Heng Feng wrote [1]: > This patch prevents my Raven Ridge xHCI from getting runtime suspend. The problem described in v5.6 commit 1208f9e1d758c9 ("USB: hub: Fix the broken detection of USB3 device in SMSC hub") applies solely to the USB5534B hub [2] present on the Kingfisher Infotainment Carrier Board, manufactured by Shimafuji Electric Inc [3]. Despite that, the aforementioned commit applied the quirk to _all_ hubs carrying vendor ID 0x424 (i.e. SMSC), of which there are more [4] than initially expected. Consequently, the quirk is now enabled on platforms carrying SMSC/Microchip hub models which potentially don't exhibit the original issue. To avoid reports like [1], further limit the quirk's scope to USB5534B [2], by employing both Vendor and Product ID checks. Tested on H3ULCB + Kingfisher rev. M05. [1] https://lore.kernel.org/linux-renesas-soc/73933975-6F0E-40F5-9584-D2B8F615C0F3@canonical.com/ [2] https://www.microchip.com/wwwproducts/en/USB5534B [3] http://www.shimafuji.co.jp/wp/wp-content/uploads/2018/08/SBEV-RCAR-KF-M06Board_HWSpecificationEN_Rev130.pdf [4] https://devicehunt.com/search/type/usb/vendor/0424/device/any Fixes: 1208f9e1d758c9 ("USB: hub: Fix the broken detection of USB3 device in SMSC hub") Cc: stable@vger.kernel.org # v4.14+ Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Hardik Gajjar <hgajjar@de.adit-jv.com> Cc: linux-renesas-soc@vger.kernel.org Cc: linux-usb@vger.kernel.org Reported-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com> Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Link: https://lore.kernel.org/r/20200514220246.13290-1-erosca@de.adit-jv.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/core/hub.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 2b6565c06c23..fc748c731832 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -39,6 +39,7 @@
#define USB_VENDOR_GENESYS_LOGIC 0x05e3
#define USB_VENDOR_SMSC 0x0424
+#define USB_PRODUCT_USB5534B 0x5534
#define HUB_QUIRK_CHECK_PORT_AUTOSUSPEND 0x01
#define HUB_QUIRK_DISABLE_AUTOSUSPEND 0x02
@@ -5621,8 +5622,11 @@ out_hdev_lock:
}
static const struct usb_device_id hub_id_table[] = {
- { .match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_CLASS,
+ { .match_flags = USB_DEVICE_ID_MATCH_VENDOR
+ | USB_DEVICE_ID_MATCH_PRODUCT
+ | USB_DEVICE_ID_MATCH_INT_CLASS,
.idVendor = USB_VENDOR_SMSC,
+ .idProduct = USB_PRODUCT_USB5534B,
.bInterfaceClass = USB_CLASS_HUB,
.driver_info = HUB_QUIRK_DISABLE_AUTOSUSPEND},
{ .match_flags = USB_DEVICE_ID_MATCH_VENDOR