diff options
Diffstat (limited to 'meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0072-usb-hub-disable-autosuspend-for-SMSC-hubs.patch')
| -rw-r--r-- | meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0072-usb-hub-disable-autosuspend-for-SMSC-hubs.patch | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0072-usb-hub-disable-autosuspend-for-SMSC-hubs.patch b/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0072-usb-hub-disable-autosuspend-for-SMSC-hubs.patch new file mode 100644 index 0000000..4989e05 --- /dev/null +++ b/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0072-usb-hub-disable-autosuspend-for-SMSC-hubs.patch @@ -0,0 +1,51 @@ +From 8276db72581e4d1e3f89ccce84555c9fea145e16 Mon Sep 17 00:00:00 2001 +From: Vladimir Barinov <vladimir.barinov@cogentembedded.com> +Date: Fri, 11 Aug 2017 17:30:40 +0300 +Subject: [PATCH] usb: hub: disable autosuspend for SMSC hubs + +Disable autosuspend for SMSC hubs (USB5534B/USB2134B devices) +This is a workaround for RCar Gen3 XHCI + +Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com> +--- + drivers/usb/core/hub.c | 9 +++++++++ + 1 file changed, 9 insertions(+) + +diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c +index cbb1467..2c4c006 100644 +--- a/drivers/usb/core/hub.c ++++ b/drivers/usb/core/hub.c +@@ -34,7 +34,9 @@ + #include "otg_whitelist.h" + + #define USB_VENDOR_GENESYS_LOGIC 0x05e3 ++#define USB_VENDOR_SMSC 0x0424 + #define HUB_QUIRK_CHECK_PORT_AUTOSUSPEND 0x01 ++#define HUB_QUIRK_DISABLE_AUTOSUSPEND 0x02 + + /* Protect struct usb_device->state and ->children members + * Note: Both are also protected by ->dev.sem, except that ->state can +@@ -1845,6 +1847,9 @@ static int hub_probe(struct usb_interface *intf, const struct usb_device_id *id) + if (id->driver_info & HUB_QUIRK_CHECK_PORT_AUTOSUSPEND) + hub->quirk_check_port_auto_suspend = 1; + ++ if (id->driver_info & HUB_QUIRK_DISABLE_AUTOSUSPEND) ++ pm_runtime_set_autosuspend_delay(&hdev->dev, -1); ++ + if (hub_configure(hub, endpoint) >= 0) + return 0; + +@@ -5226,6 +5231,10 @@ static void hub_event(struct work_struct *work) + } + + static const struct usb_device_id hub_id_table[] = { ++ { .match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_CLASS, ++ .idVendor = USB_VENDOR_SMSC, ++ .bInterfaceClass = USB_CLASS_HUB, ++ .driver_info = HUB_QUIRK_DISABLE_AUTOSUSPEND}, + { .match_flags = USB_DEVICE_ID_MATCH_VENDOR + | USB_DEVICE_ID_MATCH_INT_CLASS, + .idVendor = USB_VENDOR_GENESYS_LOGIC, +-- +1.9.1 + |