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Diffstat (limited to 'drivers/usb/core')
-rw-r--r--drivers/usb/core/config.c3
-rw-r--r--drivers/usb/core/devices.c26
-rw-r--r--drivers/usb/core/devio.c26
-rw-r--r--drivers/usb/core/hub.c44
-rw-r--r--drivers/usb/core/port.c10
-rw-r--r--drivers/usb/core/quirks.c9
-rw-r--r--drivers/usb/core/usb.c8
7 files changed, 61 insertions, 65 deletions
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index 7caff020106e..5050760f5e17 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -115,7 +115,8 @@ static void usb_parse_ss_endpoint_companion(struct device *ddev, int cfgno,
USB_SS_MULT(desc->bmAttributes) > 3) {
dev_warn(ddev, "Isoc endpoint has Mult of %d in "
"config %d interface %d altsetting %d ep %d: "
- "setting to 3\n", desc->bmAttributes + 1,
+ "setting to 3\n",
+ USB_SS_MULT(desc->bmAttributes),
cfgno, inum, asnum, ep->desc.bEndpointAddress);
ep->ss_ep_comp.bmAttributes = 2;
}
diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index 2a3bbdf7eb94..cffa0a0d7de2 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -661,32 +661,8 @@ static unsigned int usb_device_poll(struct file *file,
return 0;
}
-static loff_t usb_device_lseek(struct file *file, loff_t offset, int orig)
-{
- loff_t ret;
-
- mutex_lock(&file_inode(file)->i_mutex);
-
- switch (orig) {
- case 0:
- file->f_pos = offset;
- ret = file->f_pos;
- break;
- case 1:
- file->f_pos += offset;
- ret = file->f_pos;
- break;
- case 2:
- default:
- ret = -EINVAL;
- }
-
- mutex_unlock(&file_inode(file)->i_mutex);
- return ret;
-}
-
const struct file_operations usbfs_devices_fops = {
- .llseek = usb_device_lseek,
+ .llseek = no_seek_end_llseek,
.read = usb_device_read,
.poll = usb_device_poll,
};
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 38ae877c46e3..dbc3e143453a 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -157,30 +157,6 @@ static int connected(struct usb_dev_state *ps)
ps->dev->state != USB_STATE_NOTATTACHED);
}
-static loff_t usbdev_lseek(struct file *file, loff_t offset, int orig)
-{
- loff_t ret;
-
- mutex_lock(&file_inode(file)->i_mutex);
-
- switch (orig) {
- case 0:
- file->f_pos = offset;
- ret = file->f_pos;
- break;
- case 1:
- file->f_pos += offset;
- ret = file->f_pos;
- break;
- case 2:
- default:
- ret = -EINVAL;
- }
-
- mutex_unlock(&file_inode(file)->i_mutex);
- return ret;
-}
-
static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes,
loff_t *ppos)
{
@@ -2366,7 +2342,7 @@ static unsigned int usbdev_poll(struct file *file,
const struct file_operations usbdev_file_operations = {
.owner = THIS_MODULE,
- .llseek = usbdev_lseek,
+ .llseek = no_seek_end_llseek,
.read = usbdev_read,
.poll = usbdev_poll,
.unlocked_ioctl = usbdev_ioctl,
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index bdeadc112d29..ddbf32d599cb 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -124,6 +124,10 @@ struct usb_hub *usb_hub_to_struct_hub(struct usb_device *hdev)
int usb_device_supports_lpm(struct usb_device *udev)
{
+ /* Some devices have trouble with LPM */
+ if (udev->quirks & USB_QUIRK_NO_LPM)
+ return 0;
+
/* USB 2.1 (and greater) devices indicate LPM support through
* their USB 2.0 Extended Capabilities BOS descriptor.
*/
@@ -1031,10 +1035,20 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
unsigned delay;
/* Continue a partial initialization */
- if (type == HUB_INIT2)
- goto init2;
- if (type == HUB_INIT3)
+ if (type == HUB_INIT2 || type == HUB_INIT3) {
+ device_lock(hub->intfdev);
+
+ /* Was the hub disconnected while we were waiting? */
+ if (hub->disconnected) {
+ device_unlock(hub->intfdev);
+ kref_put(&hub->kref, hub_release);
+ return;
+ }
+ if (type == HUB_INIT2)
+ goto init2;
goto init3;
+ }
+ kref_get(&hub->kref);
/* The superspeed hub except for root hub has to use Hub Depth
* value as an offset into the route string to locate the bits
@@ -1232,6 +1246,7 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
queue_delayed_work(system_power_efficient_wq,
&hub->init_work,
msecs_to_jiffies(delay));
+ device_unlock(hub->intfdev);
return; /* Continues at init3: below */
} else {
msleep(delay);
@@ -1253,6 +1268,11 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
/* Allow autosuspend if it was suppressed */
if (type <= HUB_INIT3)
usb_autopm_put_interface_async(to_usb_interface(hub->intfdev));
+
+ if (type == HUB_INIT2 || type == HUB_INIT3)
+ device_unlock(hub->intfdev);
+
+ kref_put(&hub->kref, hub_release);
}
/* Implement the continuations for the delays above */
@@ -4512,6 +4532,8 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
goto fail;
}
+ usb_detect_quirks(udev);
+
if (udev->wusb == 0 && le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0201) {
retval = usb_get_bos_descriptor(udev);
if (!retval) {
@@ -4710,7 +4732,6 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
if (status < 0)
goto loop;
- usb_detect_quirks(udev);
if (udev->quirks & USB_QUIRK_DELAY_INIT)
msleep(1000);
@@ -5326,9 +5347,6 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
if (udev->usb2_hw_lpm_enabled == 1)
usb_set_usb2_hardware_lpm(udev, 0);
- bos = udev->bos;
- udev->bos = NULL;
-
/* Disable LPM and LTM while we reset the device and reinstall the alt
* settings. Device-initiated LPM settings, and system exit latency
* settings are cleared when the device is reset, so we have to set
@@ -5337,15 +5355,18 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
ret = usb_unlocked_disable_lpm(udev);
if (ret) {
dev_err(&udev->dev, "%s Failed to disable LPM\n.", __func__);
- goto re_enumerate;
+ goto re_enumerate_no_bos;
}
ret = usb_disable_ltm(udev);
if (ret) {
dev_err(&udev->dev, "%s Failed to disable LTM\n.",
__func__);
- goto re_enumerate;
+ goto re_enumerate_no_bos;
}
+ bos = udev->bos;
+ udev->bos = NULL;
+
for (i = 0; i < SET_CONFIG_TRIES; ++i) {
/* ep0 maxpacket size may change; let the HCD know about it.
@@ -5442,10 +5463,11 @@ done:
return 0;
re_enumerate:
- /* LPM state doesn't matter when we're about to destroy the device. */
- hub_port_logical_disconnect(parent_hub, port1);
usb_release_bos_descriptor(udev);
udev->bos = bos;
+re_enumerate_no_bos:
+ /* LPM state doesn't matter when we're about to destroy the device. */
+ hub_port_logical_disconnect(parent_hub, port1);
return -ENODEV;
}
diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c
index 210618319f10..514b563e3e5f 100644
--- a/drivers/usb/core/port.c
+++ b/drivers/usb/core/port.c
@@ -168,12 +168,18 @@ static int usb_port_runtime_suspend(struct device *dev)
return retval;
}
+
+static int usb_port_prepare(struct device *dev)
+{
+ return 1;
+}
#endif
static const struct dev_pm_ops usb_port_pm_ops = {
#ifdef CONFIG_PM
.runtime_suspend = usb_port_runtime_suspend,
.runtime_resume = usb_port_runtime_resume,
+ .prepare = usb_port_prepare,
#endif
};
@@ -206,7 +212,7 @@ static int link_peers(struct usb_port *left, struct usb_port *right)
else
method = "default";
- pr_warn("usb: failed to peer %s and %s by %s (%s:%s) (%s:%s)\n",
+ pr_debug("usb: failed to peer %s and %s by %s (%s:%s) (%s:%s)\n",
dev_name(&left->dev), dev_name(&right->dev), method,
dev_name(&left->dev),
lpeer ? dev_name(&lpeer->dev) : "none",
@@ -265,7 +271,7 @@ static void link_peers_report(struct usb_port *left, struct usb_port *right)
if (rc == 0) {
dev_dbg(&left->dev, "peered to %s\n", dev_name(&right->dev));
} else {
- dev_warn(&left->dev, "failed to peer to %s (%d)\n",
+ dev_dbg(&left->dev, "failed to peer to %s (%d)\n",
dev_name(&right->dev), rc);
pr_warn_once("usb: port power management may be unreliable\n");
usb_port_block_power_off = 1;
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index f5a381945db2..6dc810bce295 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -125,6 +125,9 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x04f3, 0x016f), .driver_info =
USB_QUIRK_DEVICE_QUALIFIER },
+ { USB_DEVICE(0x04f3, 0x21b8), .driver_info =
+ USB_QUIRK_DEVICE_QUALIFIER },
+
/* Roland SC-8820 */
{ USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME },
@@ -199,6 +202,12 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x1a0a, 0x0200), .driver_info =
USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
+ /* Blackmagic Design Intensity Shuttle */
+ { USB_DEVICE(0x1edb, 0xbd3b), .driver_info = USB_QUIRK_NO_LPM },
+
+ /* Blackmagic Design UltraStudio SDI */
+ { USB_DEVICE(0x1edb, 0xbd4f), .driver_info = USB_QUIRK_NO_LPM },
+
{ } /* terminating entry must be last */
};
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index f8bbd0b6d9fe..cafc11902794 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -316,7 +316,13 @@ static int usb_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
static int usb_dev_prepare(struct device *dev)
{
- return 0; /* Implement eventually? */
+ struct usb_device *udev = to_usb_device(dev);
+
+ /* Return 0 if the current wakeup setting is wrong, otherwise 1 */
+ if (udev->do_remote_wakeup != device_may_wakeup(dev))
+ return 0;
+
+ return 1;
}
static void usb_dev_complete(struct device *dev)
generated by cgit v1.2.3-70-g09d2 (git 2.48.1) at 2025-05-07 19:30:23 +0000