diff options
| author | Dave Airlie <airlied@redhat.com> | 2018-11-29 10:34:03 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2018-11-29 10:34:03 +1000 |
| commit | 1ec28f8b8ada4e4f77d1af006a3a474f4f83b8e3 (patch) | |
| tree | 2e810e02a66cdec0bc82a8555796b7083ad03416 /drivers/usb/core/hub.c | |
| parent | 61647c77cb15354a329cbb36fe7a2253b36b51b1 (diff) | |
| parent | 2e6e902d185027f8e3cb8b7305238f7e35d6a436 (diff) | |
| download | linux-1ec28f8b8ada4e4f77d1af006a3a474f4f83b8e3.tar.bz2 | |
Merge v4.20-rc4 into drm-next
Requested by Boris Brezillon for some vc4 fixes that are needed for future vc4 work.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/usb/core/hub.c')
| -rw-r--r-- | drivers/usb/core/hub.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index c6077d582d29..0f9381b69a3b 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2794,6 +2794,7 @@ static int hub_port_reset(struct usb_hub *hub, int port1, int i, status; u16 portchange, portstatus; struct usb_port *port_dev = hub->ports[port1 - 1]; + int reset_recovery_time; if (!hub_is_superspeed(hub->hdev)) { if (warm) { @@ -2849,7 +2850,9 @@ static int hub_port_reset(struct usb_hub *hub, int port1, USB_PORT_FEAT_C_BH_PORT_RESET); usb_clear_port_feature(hub->hdev, port1, USB_PORT_FEAT_C_PORT_LINK_STATE); - usb_clear_port_feature(hub->hdev, port1, + + if (udev) + usb_clear_port_feature(hub->hdev, port1, USB_PORT_FEAT_C_CONNECTION); /* @@ -2885,11 +2888,18 @@ static int hub_port_reset(struct usb_hub *hub, int port1, done: if (status == 0) { - /* TRSTRCY = 10 ms; plus some extra */ if (port_dev->quirks & USB_PORT_QUIRK_FAST_ENUM) usleep_range(10000, 12000); - else - msleep(10 + 40); + else { + /* TRSTRCY = 10 ms; plus some extra */ + reset_recovery_time = 10 + 40; + + /* Hub needs extra delay after resetting its port. */ + if (hub->hdev->quirks & USB_QUIRK_HUB_SLOW_RESET) + reset_recovery_time += 100; + + msleep(reset_recovery_time); + } if (udev) { struct usb_hcd *hcd = bus_to_hcd(udev->bus); |