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| author | Arnaldo Carvalho de Melo <[email protected]> | 2020-03-04 13:29:19 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2020-03-04 13:29:19 +0000 |
| commit | d46eec8e975a8180e178e01ba505801c44bc9a6c (patch) | |
| tree | bff067e554fc03c576e107297085d30c8e381370 /drivers/usb/core/hub.c | |
| parent | perf/x86: Add Intel Tiger Lake uncore support (diff) | |
| parent | perf diff: Fix undefined string comparison spotted by clang's -Wstring-compare (diff) | |
| download | kernel-d46eec8e975a8180e178e01ba505801c44bc9a6c.tar.gz kernel-d46eec8e975a8180e178e01ba505801c44bc9a6c.zip | |
Merge remote-tracking branch 'acme/perf/urgent' into perf/core
To pick up fixes.
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'drivers/usb/core/hub.c')
| -rw-r--r-- | drivers/usb/core/hub.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 3405b146edc9..1d212f82c69b 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -38,7 +38,9 @@ #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 #define USB_TP_TRANSMISSION_DELAY 40 /* ns */ #define USB_TP_TRANSMISSION_DELAY_MAX 65535 /* ns */ @@ -1217,11 +1219,6 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) #ifdef CONFIG_PM udev->reset_resume = 1; #endif - /* Don't set the change_bits when the device - * was powered off. - */ - if (test_bit(port1, hub->power_bits)) - set_bit(port1, hub->change_bits); } else { /* The power session is gone; tell hub_wq */ @@ -1731,6 +1728,10 @@ static void hub_disconnect(struct usb_interface *intf) kfree(hub->buffer); pm_suspend_ignore_children(&intf->dev, false); + + if (hub->quirk_disable_autosuspend) + usb_autopm_put_interface(intf); + kref_put(&hub->kref, hub_release); } @@ -1863,6 +1864,11 @@ 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) { + hub->quirk_disable_autosuspend = 1; + usb_autopm_get_interface(intf); + } + if (hub_configure(hub, &desc->endpoint[0].desc) >= 0) return 0; @@ -5599,6 +5605,10 @@ 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, + .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, |