diff options
-rw-r--r-- | drivers/usb/core/driver.c | 4 | ||||
-rw-r--r-- | drivers/usb/core/hub.c | 5 | ||||
-rw-r--r-- | drivers/usb/core/quirks.c | 3 | ||||
-rw-r--r-- | include/linux/usb/quirks.h | 3 |
4 files changed, 15 insertions, 0 deletions
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 12dd986bdffd..02d6db61c940 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c | |||
@@ -24,6 +24,7 @@ | |||
24 | 24 | ||
25 | #include <linux/device.h> | 25 | #include <linux/device.h> |
26 | #include <linux/usb.h> | 26 | #include <linux/usb.h> |
27 | #include <linux/usb/quirks.h> | ||
27 | #include <linux/workqueue.h> | 28 | #include <linux/workqueue.h> |
28 | #include "hcd.h" | 29 | #include "hcd.h" |
29 | #include "usb.h" | 30 | #include "usb.h" |
@@ -835,6 +836,9 @@ static int usb_resume_device(struct usb_device *udev) | |||
835 | goto done; | 836 | goto done; |
836 | } | 837 | } |
837 | 838 | ||
839 | if (udev->quirks & USB_QUIRK_RESET_RESUME) | ||
840 | udev->reset_resume = 1; | ||
841 | |||
838 | udriver = to_usb_device_driver(udev->dev.driver); | 842 | udriver = to_usb_device_driver(udev->dev.driver); |
839 | status = udriver->resume(udev); | 843 | status = udriver->resume(udev); |
840 | 844 | ||
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 51d2d304568b..d37ad083d5ef 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c | |||
@@ -2939,6 +2939,11 @@ static int config_descriptors_changed(struct usb_device *udev) | |||
2939 | * this from a driver probe() routine after downloading new firmware. | 2939 | * this from a driver probe() routine after downloading new firmware. |
2940 | * For calls that might not occur during probe(), drivers should lock | 2940 | * For calls that might not occur during probe(), drivers should lock |
2941 | * the device using usb_lock_device_for_reset(). | 2941 | * the device using usb_lock_device_for_reset(). |
2942 | * | ||
2943 | * Locking exception: This routine may also be called from within an | ||
2944 | * autoresume handler. Such usage won't conflict with other tasks | ||
2945 | * holding the device lock because these tasks should always call | ||
2946 | * usb_autopm_resume_device(), thereby preventing any unwanted autoresume. | ||
2942 | */ | 2947 | */ |
2943 | int usb_reset_device(struct usb_device *udev) | 2948 | int usb_reset_device(struct usb_device *udev) |
2944 | { | 2949 | { |
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index 739f520908aa..f37fa012f329 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c | |||
@@ -35,6 +35,9 @@ static const struct usb_device_id usb_quirk_list[] = { | |||
35 | /* Elsa MicroLink 56k (V.250) */ | 35 | /* Elsa MicroLink 56k (V.250) */ |
36 | { USB_DEVICE(0x05cc, 0x2267), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, | 36 | { USB_DEVICE(0x05cc, 0x2267), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, |
37 | 37 | ||
38 | /* Philips PSC805 audio device */ | ||
39 | { USB_DEVICE(0x0471, 0x0155), .driver_info = USB_QUIRK_RESET_RESUME }, | ||
40 | |||
38 | { } /* terminating entry must be last */ | 41 | { } /* terminating entry must be last */ |
39 | }; | 42 | }; |
40 | 43 | ||
diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h index 6bac8faacbc6..8da374caf582 100644 --- a/include/linux/usb/quirks.h +++ b/include/linux/usb/quirks.h | |||
@@ -9,3 +9,6 @@ | |||
9 | 9 | ||
10 | /* string descriptors must not be fetched using a 255-byte read */ | 10 | /* string descriptors must not be fetched using a 255-byte read */ |
11 | #define USB_QUIRK_STRING_FETCH_255 0x00000002 | 11 | #define USB_QUIRK_STRING_FETCH_255 0x00000002 |
12 | |||
13 | /* device can't resume correctly so reset it instead */ | ||
14 | #define USB_QUIRK_RESET_RESUME 0x00000004 | ||