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-rw-r--r--drivers/usb/atm/cxacru.c27
-rw-r--r--drivers/usb/atm/usbatm.c14
-rw-r--r--drivers/usb/c67x00/c67x00-sched.c7
-rw-r--r--drivers/usb/common/usb-conn-gpio.c32
-rw-r--r--drivers/usb/core/generic.c4
-rw-r--r--drivers/usb/core/hcd.c6
-rw-r--r--drivers/usb/core/urb.c89
-rw-r--r--drivers/usb/gadget/function/f_midi.c6
-rw-r--r--drivers/usb/gadget/udc/fsl_qe_udc.c7
-rw-r--r--drivers/usb/host/pci-quirks.c22
-rw-r--r--drivers/usb/host/xhci-dbgtty.c6
-rw-r--r--drivers/usb/host/xhci-mtk.c6
-rw-r--r--drivers/usb/host/xhci-pci.c10
-rw-r--r--drivers/usb/host/xhci-tegra.c1
-rw-r--r--drivers/usb/host/xhci.h2
-rw-r--r--drivers/usb/misc/usblcd.c1
-rw-r--r--drivers/usb/misc/yurex.c6
-rw-r--r--drivers/usb/mtu3/mtu3.h6
-rw-r--r--drivers/usb/serial/mos7720.c8
-rw-r--r--drivers/usb/storage/isd200.c2
-rw-r--r--drivers/usb/typec/tcpm/tcpm.c133
21 files changed, 239 insertions, 156 deletions
diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index ea66f8f385ba..e62a770a5d3b 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -230,12 +230,12 @@ CXACRU__ATTR_INIT(_name)
static ssize_t cxacru_sysfs_showattr_u32(u32 value, char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%u\n", value);
+ return sprintf(buf, "%u\n", value);
}
static ssize_t cxacru_sysfs_showattr_s8(s8 value, char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%d\n", value);
+ return sprintf(buf, "%d\n", value);
}
static ssize_t cxacru_sysfs_showattr_dB(s16 value, char *buf)
@@ -255,8 +255,8 @@ static ssize_t cxacru_sysfs_showattr_bool(u32 value, char *buf)
static char *str[] = { "no", "yes" };
if (unlikely(value >= ARRAY_SIZE(str)))
- return snprintf(buf, PAGE_SIZE, "%u\n", value);
- return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
+ return sprintf(buf, "%u\n", value);
+ return sprintf(buf, "%s\n", str[value]);
}
static ssize_t cxacru_sysfs_showattr_LINK(u32 value, char *buf)
@@ -264,8 +264,8 @@ static ssize_t cxacru_sysfs_showattr_LINK(u32 value, char *buf)
static char *str[] = { NULL, "not connected", "connected", "lost" };
if (unlikely(value >= ARRAY_SIZE(str) || str[value] == NULL))
- return snprintf(buf, PAGE_SIZE, "%u\n", value);
- return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
+ return sprintf(buf, "%u\n", value);
+ return sprintf(buf, "%s\n", str[value]);
}
static ssize_t cxacru_sysfs_showattr_LINE(u32 value, char *buf)
@@ -275,8 +275,8 @@ static ssize_t cxacru_sysfs_showattr_LINE(u32 value, char *buf)
"waiting", "initialising"
};
if (unlikely(value >= ARRAY_SIZE(str)))
- return snprintf(buf, PAGE_SIZE, "%u\n", value);
- return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
+ return sprintf(buf, "%u\n", value);
+ return sprintf(buf, "%s\n", str[value]);
}
static ssize_t cxacru_sysfs_showattr_MODU(u32 value, char *buf)
@@ -288,8 +288,8 @@ static ssize_t cxacru_sysfs_showattr_MODU(u32 value, char *buf)
"ITU-T G.992.2 (G.LITE)"
};
if (unlikely(value >= ARRAY_SIZE(str)))
- return snprintf(buf, PAGE_SIZE, "%u\n", value);
- return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
+ return sprintf(buf, "%u\n", value);
+ return sprintf(buf, "%s\n", str[value]);
}
/*
@@ -309,8 +309,7 @@ static ssize_t mac_address_show(struct device *dev,
if (instance == NULL || instance->usbatm->atm_dev == NULL)
return -ENODEV;
- return snprintf(buf, PAGE_SIZE, "%pM\n",
- instance->usbatm->atm_dev->esi);
+ return sprintf(buf, "%pM\n", instance->usbatm->atm_dev->esi);
}
static ssize_t adsl_state_show(struct device *dev,
@@ -326,8 +325,8 @@ static ssize_t adsl_state_show(struct device *dev,
value = instance->card_info[CXINF_LINE_STARTABLE];
if (unlikely(value >= ARRAY_SIZE(str)))
- return snprintf(buf, PAGE_SIZE, "%u\n", value);
- return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
+ return sprintf(buf, "%u\n", value);
+ return sprintf(buf, "%s\n", str[value]);
}
static ssize_t adsl_state_store(struct device *dev,
diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
index 4e12a32ca392..56fe30d247da 100644
--- a/drivers/usb/atm/usbatm.c
+++ b/drivers/usb/atm/usbatm.c
@@ -511,9 +511,10 @@ static unsigned int usbatm_write_cells(struct usbatm_data *instance,
** receive **
**************/
-static void usbatm_rx_process(unsigned long data)
+static void usbatm_rx_process(struct tasklet_struct *t)
{
- struct usbatm_data *instance = (struct usbatm_data *)data;
+ struct usbatm_data *instance = from_tasklet(instance, t,
+ rx_channel.tasklet);
struct urb *urb;
while ((urb = usbatm_pop_urb(&instance->rx_channel))) {
@@ -564,9 +565,10 @@ static void usbatm_rx_process(unsigned long data)
** send **
***********/
-static void usbatm_tx_process(unsigned long data)
+static void usbatm_tx_process(struct tasklet_struct *t)
{
- struct usbatm_data *instance = (struct usbatm_data *)data;
+ struct usbatm_data *instance = from_tasklet(instance, t,
+ tx_channel.tasklet);
struct sk_buff *skb = instance->current_skb;
struct urb *urb = NULL;
const unsigned int buf_size = instance->tx_channel.buf_size;
@@ -1069,8 +1071,8 @@ int usbatm_usb_probe(struct usb_interface *intf, const struct usb_device_id *id,
usbatm_init_channel(&instance->rx_channel);
usbatm_init_channel(&instance->tx_channel);
- tasklet_init(&instance->rx_channel.tasklet, usbatm_rx_process, (unsigned long)instance);
- tasklet_init(&instance->tx_channel.tasklet, usbatm_tx_process, (unsigned long)instance);
+ tasklet_setup(&instance->rx_channel.tasklet, usbatm_rx_process);
+ tasklet_setup(&instance->tx_channel.tasklet, usbatm_tx_process);
instance->rx_channel.stride = ATM_CELL_SIZE + driver->rx_padding;
instance->tx_channel.stride = ATM_CELL_SIZE + driver->tx_padding;
instance->rx_channel.usbatm = instance->tx_channel.usbatm = instance;
diff --git a/drivers/usb/c67x00/c67x00-sched.c b/drivers/usb/c67x00/c67x00-sched.c
index 60f4711717d2..e65f1a0ae80b 100644
--- a/drivers/usb/c67x00/c67x00-sched.c
+++ b/drivers/usb/c67x00/c67x00-sched.c
@@ -1123,9 +1123,9 @@ static void c67x00_do_work(struct c67x00_hcd *c67x00)
/* -------------------------------------------------------------------------- */
-static void c67x00_sched_tasklet(unsigned long __c67x00)
+static void c67x00_sched_tasklet(struct tasklet_struct *t)
{
- struct c67x00_hcd *c67x00 = (struct c67x00_hcd *)__c67x00;
+ struct c67x00_hcd *c67x00 = from_tasklet(c67x00, t, tasklet);
c67x00_do_work(c67x00);
}
@@ -1136,8 +1136,7 @@ void c67x00_sched_kick(struct c67x00_hcd *c67x00)
int c67x00_sched_start_scheduler(struct c67x00_hcd *c67x00)
{
- tasklet_init(&c67x00->tasklet, c67x00_sched_tasklet,
- (unsigned long)c67x00);
+ tasklet_setup(&c67x00->tasklet, c67x00_sched_tasklet);
return 0;
}
diff --git a/drivers/usb/common/usb-conn-gpio.c b/drivers/usb/common/usb-conn-gpio.c
index 7b3a21360d7c..6c4e3a19f42c 100644
--- a/drivers/usb/common/usb-conn-gpio.c
+++ b/drivers/usb/common/usb-conn-gpio.c
@@ -91,14 +91,14 @@ static void usb_conn_detect_cable(struct work_struct *work)
return;
}
- if (info->last_role == USB_ROLE_HOST)
+ if (info->last_role == USB_ROLE_HOST && info->vbus)
regulator_disable(info->vbus);
ret = usb_role_switch_set_role(info->role_sw, role);
if (ret)
dev_err(info->dev, "failed to set role: %d\n", ret);
- if (role == USB_ROLE_HOST) {
+ if (role == USB_ROLE_HOST && info->vbus) {
ret = regulator_enable(info->vbus);
if (ret)
dev_err(info->dev, "enable vbus regulator failed\n");
@@ -106,8 +106,9 @@ static void usb_conn_detect_cable(struct work_struct *work)
info->last_role = role;
- dev_dbg(info->dev, "vbus regulator is %s\n",
- regulator_is_enabled(info->vbus) ? "enabled" : "disabled");
+ if (info->vbus)
+ dev_dbg(info->dev, "vbus regulator is %s\n",
+ regulator_is_enabled(info->vbus) ? "enabled" : "disabled");
power_supply_changed(info->charger);
}
@@ -156,6 +157,7 @@ static int usb_conn_probe(struct platform_device *pdev)
struct power_supply_config cfg = {
.of_node = dev->of_node,
};
+ bool need_vbus = true;
int ret = 0;
info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
@@ -185,10 +187,26 @@ static int usb_conn_probe(struct platform_device *pdev)
INIT_DELAYED_WORK(&info->dw_det, usb_conn_detect_cable);
- info->vbus = devm_regulator_get(dev, "vbus");
+ /*
+ * If the USB connector is a child of a USB port and that port already provides the VBUS
+ * supply, there's no need for the USB connector to provide it again.
+ */
+ if (dev->parent && dev->parent->of_node) {
+ if (of_find_property(dev->parent->of_node, "vbus-supply", NULL))
+ need_vbus = false;
+ }
+
+ if (!need_vbus) {
+ info->vbus = devm_regulator_get_optional(dev, "vbus");
+ if (PTR_ERR(info->vbus) == -ENODEV)
+ info->vbus = NULL;
+ } else {
+ info->vbus = devm_regulator_get(dev, "vbus");
+ }
+
if (IS_ERR(info->vbus)) {
if (PTR_ERR(info->vbus) != -EPROBE_DEFER)
- dev_err(dev, "failed to get vbus\n");
+ dev_err(dev, "failed to get vbus: %ld\n", PTR_ERR(info->vbus));
return PTR_ERR(info->vbus);
}
@@ -266,7 +284,7 @@ static int usb_conn_remove(struct platform_device *pdev)
cancel_delayed_work_sync(&info->dw_det);
- if (info->last_role == USB_ROLE_HOST)
+ if (info->last_role == USB_ROLE_HOST && info->vbus)
regulator_disable(info->vbus);
usb_role_switch_put(info->role_sw);
diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c
index 2b2f1ab6e36a..22c887f5c497 100644
--- a/drivers/usb/core/generic.c
+++ b/drivers/usb/core/generic.c
@@ -195,7 +195,7 @@ int usb_choose_configuration(struct usb_device *udev)
}
EXPORT_SYMBOL_GPL(usb_choose_configuration);
-static int __check_usb_generic(struct device_driver *drv, void *data)
+static int __check_for_non_generic_match(struct device_driver *drv, void *data)
{
struct usb_device *udev = data;
struct usb_device_driver *udrv;
@@ -219,7 +219,7 @@ static bool usb_generic_driver_match(struct usb_device *udev)
* If any other driver wants the device, leave the device to this other
* driver.
*/
- if (bus_for_each_drv(&usb_bus_type, NULL, udev, __check_usb_generic))
+ if (bus_for_each_drv(&usb_bus_type, NULL, udev, __check_for_non_generic_match))
return false;
return true;
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index a33b849e8beb..2c6b9578a7d3 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1657,9 +1657,9 @@ static void __usb_hcd_giveback_urb(struct urb *urb)
usb_put_urb(urb);
}
-static void usb_giveback_urb_bh(unsigned long param)
+static void usb_giveback_urb_bh(struct tasklet_struct *t)
{
- struct giveback_urb_bh *bh = (struct giveback_urb_bh *)param;
+ struct giveback_urb_bh *bh = from_tasklet(bh, t, bh);
struct list_head local_list;
spin_lock_irq(&bh->lock);
@@ -2403,7 +2403,7 @@ static void init_giveback_urb_bh(struct giveback_urb_bh *bh)
spin_lock_init(&bh->lock);
INIT_LIST_HEAD(&bh->head);
- tasklet_init(&bh->bh, usb_giveback_urb_bh, (unsigned long)bh);
+ tasklet_setup(&bh->bh, usb_giveback_urb_bh);
}
struct usb_hcd *__usb_create_hcd(const struct hc_driver *driver,
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index 7bc23469f4e4..27e83e55a590 100644
--- a/drivers/usb/core/urb.c
+++ b/drivers/usb/core/urb.c
@@ -772,11 +772,12 @@ void usb_block_urb(struct urb *urb)
EXPORT_SYMBOL_GPL(usb_block_urb);
/**
- * usb_kill_anchored_urbs - cancel transfer requests en masse
+ * usb_kill_anchored_urbs - kill all URBs associated with an anchor
* @anchor: anchor the requests are bound to
*
- * this allows all outstanding URBs to be killed starting
- * from the back of the queue
+ * This kills all outstanding URBs starting from the back of the queue,
+ * with guarantee that no completer callbacks will take place from the
+ * anchor after this function returns.
*
* This routine should not be called by a driver after its disconnect
* method has returned.
@@ -784,20 +785,26 @@ EXPORT_SYMBOL_GPL(usb_block_urb);
void usb_kill_anchored_urbs(struct usb_anchor *anchor)
{
struct urb *victim;
+ int surely_empty;
- spin_lock_irq(&anchor->lock);
- while (!list_empty(&anchor->urb_list)) {
- victim = list_entry(anchor->urb_list.prev, struct urb,
- anchor_list);
- /* we must make sure the URB isn't freed before we kill it*/
- usb_get_urb(victim);
- spin_unlock_irq(&anchor->lock);
- /* this will unanchor the URB */
- usb_kill_urb(victim);
- usb_put_urb(victim);
+ do {
spin_lock_irq(&anchor->lock);
- }
- spin_unlock_irq(&anchor->lock);
+ while (!list_empty(&anchor->urb_list)) {
+ victim = list_entry(anchor->urb_list.prev,
+ struct urb, anchor_list);
+ /* make sure the URB isn't freed before we kill it */
+ usb_get_urb(victim);
+ spin_unlock_irq(&anchor->lock);
+ /* this will unanchor the URB */
+ usb_kill_urb(victim);
+ usb_put_urb(victim);
+ spin_lock_irq(&anchor->lock);
+ }
+ surely_empty = usb_anchor_check_wakeup(anchor);
+
+ spin_unlock_irq(&anchor->lock);
+ cpu_relax();
+ } while (!surely_empty);
}
EXPORT_SYMBOL_GPL(usb_kill_anchored_urbs);
@@ -816,21 +823,27 @@ EXPORT_SYMBOL_GPL(usb_kill_anchored_urbs);
void usb_poison_anchored_urbs(struct usb_anchor *anchor)
{
struct urb *victim;
+ int surely_empty;
- spin_lock_irq(&anchor->lock);
- anchor->poisoned = 1;
- while (!list_empty(&anchor->urb_list)) {
- victim = list_entry(anchor->urb_list.prev, struct urb,
- anchor_list);
- /* we must make sure the URB isn't freed before we kill it*/
- usb_get_urb(victim);
- spin_unlock_irq(&anchor->lock);
- /* this will unanchor the URB */
- usb_poison_urb(victim);
- usb_put_urb(victim);
+ do {
spin_lock_irq(&anchor->lock);
- }
- spin_unlock_irq(&anchor->lock);
+ anchor->poisoned = 1;
+ while (!list_empty(&anchor->urb_list)) {
+ victim = list_entry(anchor->urb_list.prev,
+ struct urb, anchor_list);
+ /* make sure the URB isn't freed before we kill it */
+ usb_get_urb(victim);
+ spin_unlock_irq(&anchor->lock);
+ /* this will unanchor the URB */
+ usb_poison_urb(victim);
+ usb_put_urb(victim);
+ spin_lock_irq(&anchor->lock);
+ }
+ surely_empty = usb_anchor_check_wakeup(anchor);
+
+ spin_unlock_irq(&anchor->lock);
+ cpu_relax();
+ } while (!surely_empty);
}
EXPORT_SYMBOL_GPL(usb_poison_anchored_urbs);
@@ -970,14 +983,20 @@ void usb_scuttle_anchored_urbs(struct usb_anchor *anchor)
{
struct urb *victim;
unsigned long flags;
+ int surely_empty;
+
+ do {
+ spin_lock_irqsave(&anchor->lock, flags);
+ while (!list_empty(&anchor->urb_list)) {
+ victim = list_entry(anchor->urb_list.prev,
+ struct urb, anchor_list);
+ __usb_unanchor_urb(victim, anchor);
+ }
+ surely_empty = usb_anchor_check_wakeup(anchor);
- spin_lock_irqsave(&anchor->lock, flags);
- while (!list_empty(&anchor->urb_list)) {
- victim = list_entry(anchor->urb_list.prev, struct urb,
- anchor_list);
- __usb_unanchor_urb(victim, anchor);
- }
- spin_unlock_irqrestore(&anchor->lock, flags);
+ spin_unlock_irqrestore(&anchor->lock, flags);
+ cpu_relax();
+ } while (!surely_empty);
}
EXPORT_SYMBOL_GPL(usb_scuttle_anchored_urbs);
diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c
index 46af0aa07e2e..85cb15734aa8 100644
--- a/drivers/usb/gadget/function/f_midi.c
+++ b/drivers/usb/gadget/function/f_midi.c
@@ -698,9 +698,9 @@ drop_out:
f_midi_drop_out_substreams(midi);
}
-static void f_midi_in_tasklet(unsigned long data)
+static void f_midi_in_tasklet(struct tasklet_struct *t)
{
- struct f_midi *midi = (struct f_midi *) data;
+ struct f_midi *midi = from_tasklet(midi, t, tasklet);
f_midi_transmit(midi);
}
@@ -875,7 +875,7 @@ static int f_midi_bind(struct usb_configuration *c, struct usb_function *f)
int status, n, jack = 1, i = 0, endpoint_descriptor_index = 0;
midi->gadget = cdev->gadget;
- tasklet_init(&midi->tasklet, f_midi_in_tasklet, (unsigned long) midi);
+ tasklet_setup(&midi->tasklet, f_midi_in_tasklet);
status = f_midi_register_card(midi);
if (status < 0)
goto fail_register;
diff --git a/drivers/usb/gadget/udc/fsl_qe_udc.c b/drivers/usb/gadget/udc/fsl_qe_udc.c
index 2707be628298..fa66449b3907 100644
--- a/drivers/usb/gadget/udc/fsl_qe_udc.c
+++ b/drivers/usb/gadget/udc/fsl_qe_udc.c
@@ -923,9 +923,9 @@ static int qe_ep_rxframe_handle(struct qe_ep *ep)
return 0;
}
-static void ep_rx_tasklet(unsigned long data)
+static void ep_rx_tasklet(struct tasklet_struct *t)
{
- struct qe_udc *udc = (struct qe_udc *)data;
+ struct qe_udc *udc = from_tasklet(udc, t, rx_tasklet);
struct qe_ep *ep;
struct qe_frame *pframe;
struct qe_bd __iomem *bd;
@@ -2553,8 +2553,7 @@ static int qe_udc_probe(struct platform_device *ofdev)
DMA_TO_DEVICE);
}
- tasklet_init(&udc->rx_tasklet, ep_rx_tasklet,
- (unsigned long)udc);
+ tasklet_setup(&udc->rx_tasklet, ep_rx_tasklet);
/* request irq and disable DR */
udc->usb_irq = irq_of_parse_and_map(np, 0);
if (!udc->usb_irq) {
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 8c1bbac6d136..c32b544c043a 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -16,8 +16,7 @@
#include <linux/export.h>
#include <linux/acpi.h>
#include <linux/dmi.h>
-
-#include <soc/bcm2835/raspberrypi-firmware.h>
+#include <linux/of.h>
#include "pci-quirks.h"
#include "xhci-ext-caps.h"
@@ -1247,7 +1246,8 @@ iounmap:
static void quirk_usb_early_handoff(struct pci_dev *pdev)
{
- int ret;
+ struct device_node *parent;
+ bool is_rpi;
/* Skip Netlogic mips SoC's internal PCI USB controller.
* This device does not need/support EHCI/OHCI handoff
@@ -1255,14 +1255,16 @@ static void quirk_usb_early_handoff(struct pci_dev *pdev)
if (pdev->vendor == 0x184e) /* vendor Netlogic */
return;
+ /*
+ * Bypass the Raspberry Pi 4 controller xHCI controller, things are
+ * taken care of by the board's co-processor.
+ */
if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483) {
- ret = rpi_firmware_init_vl805(pdev);
- if (ret) {
- /* Firmware might be outdated, or something failed */
- dev_warn(&pdev->dev,
- "Failed to load VL805's firmware: %d. Will continue to attempt to work, but bad things might happen. You should fix this...\n",
- ret);
- }
+ parent = of_get_parent(pdev->bus->dev.of_node);
+ is_rpi = of_device_is_compatible(parent, "brcm,bcm2711-pcie");
+ of_node_put(parent);
+ if (is_rpi)
+ return;
}
if (pdev->class != PCI_CLASS_SERIAL_USB_UHCI &&
diff --git a/drivers/usb/host/xhci-dbgtty.c b/drivers/usb/host/xhci-dbgtty.c
index b8918f73a432..ae4e4ab638b5 100644
--- a/drivers/usb/host/xhci-dbgtty.c
+++ b/drivers/usb/host/xhci-dbgtty.c
@@ -288,14 +288,14 @@ static const struct tty_operations dbc_tty_ops = {
.unthrottle = dbc_tty_unthrottle,
};
-static void dbc_rx_push(unsigned long _port)
+static void dbc_rx_push(struct tasklet_struct *t)
{
struct dbc_request *req;
struct tty_struct *tty;
unsigned long flags;
bool do_push = false;
bool disconnect = false;
- struct dbc_port *port = (void *)_port;
+ struct dbc_port *port = from_tasklet(port, t, push);
struct list_head *queue = &port->read_queue;
spin_lock_irqsave(&port->port_lock, flags);
@@ -382,7 +382,7 @@ xhci_dbc_tty_init_port(struct xhci_dbc *dbc, struct dbc_port *port)
{
tty_port_init(&port->port);
spin_lock_init(&port->port_lock);
- tasklet_init(&port->push, dbc_rx_push, (unsigned long)port);
+ tasklet_setup(&port->push, dbc_rx_push);
INIT_LIST_HEAD(&port->read_pool);
INIT_LIST_HEAD(&port->read_queue);
INIT_LIST_HEAD(&port->write_pool);
diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index 4311d4c9b68d..8f321f39ab96 100644
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -77,7 +77,7 @@ static int xhci_mtk_host_enable(struct xhci_hcd_mtk *mtk)
{
struct mu3c_ippc_regs __iomem *ippc = mtk->ippc_regs;
u32 value, check_val;
- int u3_ports_disabed = 0;
+ int u3_ports_disabled = 0;
int ret;
int i;
@@ -92,7 +92,7 @@ static int xhci_mtk_host_enable(struct xhci_hcd_mtk *mtk)
/* power on and enable u3 ports except skipped ones */
for (i = 0; i < mtk->num_u3_ports; i++) {
if ((0x1 << i) & mtk->u3p_dis_msk) {
- u3_ports_disabed++;
+ u3_ports_disabled++;
continue;
}
@@ -117,7 +117,7 @@ static int xhci_mtk_host_enable(struct xhci_hcd_mtk *mtk)
check_val = STS1_SYSPLL_STABLE | STS1_REF_RST |
STS1_SYS125_RST | STS1_XHCI_RST;
- if (mtk->num_u3_ports > u3_ports_disabed)
+ if (mtk->num_u3_ports > u3_ports_disabled)
check_val |= STS1_U3_MAC_RST;
ret = readl_poll_timeout(&ippc->ip_pw_sts1, value,
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 3feaafebfe58..c26c06e5c88c 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -12,6 +12,7 @@
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/acpi.h>
+#include <linux/reset.h>
#include "xhci.h"
#include "xhci-trace.h"
@@ -346,6 +347,7 @@ static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
struct xhci_hcd *xhci;
struct usb_hcd *hcd;
struct xhci_driver_data *driver_data;
+ struct reset_control *reset;
driver_data = (struct xhci_driver_data *)id->driver_data;
if (driver_data && driver_data->quirks & XHCI_RENESAS_FW_QUIRK) {
@@ -354,6 +356,11 @@ static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
return retval;
}
+ reset = devm_reset_control_get_optional_exclusive(&dev->dev, NULL);
+ if (IS_ERR(reset))
+ return PTR_ERR(reset);
+ reset_control_reset(reset);
+
/* Prevent runtime suspending between USB-2 and USB-3 initialization */
pm_runtime_get_noresume(&dev->dev);
@@ -371,6 +378,7 @@ static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
/* USB 2.0 roothub is stored in the PCI device now. */
hcd = dev_get_drvdata(&dev->dev);
xhci = hcd_to_xhci(hcd);
+ xhci->reset = reset;
xhci->shared_hcd = usb_create_shared_hcd(&xhci_pci_hc_driver, &dev->dev,
pci_name(dev), hcd);
if (!xhci->shared_hcd) {
@@ -522,6 +530,8 @@ static int xhci_pci_resume(struct usb_hcd *hcd, bool hibernated)
struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
int retval = 0;
+ reset_control_reset(xhci->reset);
+
/* The BIOS on systems with the Intel Panther Point chipset may or may
* not support xHCI natively. That means that during system resume, it
* may switch the ports back to EHCI so that users can use their
diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c
index 190923d8b246..934be1686352 100644
--- a/drivers/usb/host/xhci-tegra.c
+++ b/drivers/usb/host/xhci-tegra.c
@@ -1866,7 +1866,6 @@ static const struct tegra_xusb_phy_type tegra124_phy_types[] = {
static const unsigned int tegra124_xusb_context_ipfs[] = {
IPFS_XUSB_HOST_MSI_BAR_SZ_0,
- IPFS_XUSB_HOST_MSI_BAR_SZ_0,
IPFS_XUSB_HOST_MSI_AXI_BAR_ST_0,
IPFS_XUSB_HOST_MSI_FPCI_BAR_ST_0,
IPFS_XUSB_HOST_MSI_VEC0_0,
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index ea1754f185a2..ac44b62ca0c5 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1770,6 +1770,8 @@ struct xhci_hcd {
/* optional clocks */
struct clk *clk;
struct clk *reg_clk;
+ /* optional reset controller */
+ struct reset_control *reset;
/* data structures */
struct xhci_device_context_array *dcbaa;
struct xhci_ring *cmd_ring;
diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c
index 61e9e987fe4a..bb546f624a45 100644
--- a/drivers/usb/misc/usblcd.c
+++ b/drivers/usb/misc/usblcd.c
@@ -187,7 +187,6 @@ static long lcd_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
break;
default:
return -ENOTTY;
- break;
}
return 0;
diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c
index b2e09883c7e2..e3165d79b5f6 100644
--- a/drivers/usb/misc/yurex.c
+++ b/drivers/usb/misc/yurex.c
@@ -96,15 +96,13 @@ static void yurex_delete(struct kref *kref)
if (dev->cntl_urb) {
usb_kill_urb(dev->cntl_urb);
kfree(dev->cntl_req);
- if (dev->cntl_buffer)
- usb_free_coherent(dev->udev, YUREX_BUF_SIZE,
+ usb_free_coherent(dev->udev, YUREX_BUF_SIZE,
dev->cntl_buffer, dev->cntl_urb->transfer_dma);
usb_free_urb(dev->cntl_urb);
}
if (dev->urb) {
usb_kill_urb(dev->urb);
- if (dev->int_buffer)
- usb_free_coherent(dev->udev, YUREX_BUF_SIZE,
+ usb_free_coherent(dev->udev, YUREX_BUF_SIZE,
dev->int_buffer, dev->urb->transfer_dma);
usb_free_urb(dev->urb);
}
diff --git a/drivers/usb/mtu3/mtu3.h b/drivers/usb/mtu3/mtu3.h
index 71f4f02c05c6..aef0a0bba25a 100644
--- a/drivers/usb/mtu3/mtu3.h
+++ b/drivers/usb/mtu3/mtu3.h
@@ -370,12 +370,6 @@ static inline struct mtu3 *gadget_to_mtu3(struct usb_gadget *g)
return container_of(g, struct mtu3, g);
}
-static inline int is_first_entry(const struct list_head *list,
- const struct list_head *head)
-{
- return list_is_last(head, list);
-}
-
static inline struct mtu3_request *to_mtu3_request(struct usb_request *req)
{
return req ? container_of(req, struct mtu3_request, request) : NULL;
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 2ec4eeacebc7..5eed1078fac8 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -282,11 +282,12 @@ static void destroy_urbtracker(struct kref *kref)
* port callback had to be deferred because the disconnect mutex could not be
* obtained at the time.
*/
-static void send_deferred_urbs(unsigned long _mos_parport)
+static void send_deferred_urbs(struct tasklet_struct *t)
{
int ret_val;
unsigned long flags;
- struct mos7715_parport *mos_parport = (void *)_mos_parport;
+ struct mos7715_parport *mos_parport = from_tasklet(mos_parport, t,
+ urb_tasklet);
struct urbtracker *urbtrack, *tmp;
struct list_head *cursor, *next;
struct device *dev;
@@ -716,8 +717,7 @@ static int mos7715_parport_init(struct usb_serial *serial)
INIT_LIST_HEAD(&mos_parport->deferred_urbs);
usb_set_serial_data(serial, mos_parport); /* hijack private pointer */
mos_parport->serial = serial;
- tasklet_init(&mos_parport->urb_tasklet, send_deferred_urbs,
- (unsigned long) mos_parport);
+ tasklet_setup(&mos_parport->urb_tasklet, send_deferred_urbs);
init_completion(&mos_parport->syncmsg_compl);
/* cycle parallel port reset bit */
diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c
index 89f5e33a6e6d..3c76336e43bb 100644
--- a/drivers/usb/storage/isd200.c
+++ b/drivers/usb/storage/isd200.c
@@ -1383,7 +1383,7 @@ static int isd200_scsi_to_ata(struct scsi_cmnd *srb, struct us_data *us,
ATA_CMD_MEDIA_LOCK : ATA_CMD_MEDIA_UNLOCK;
isd200_srb_set_bufflen(srb, 0);
} else {
- usb_stor_dbg(us, " Not removeable media, just report okay\n");
+ usb_stor_dbg(us, " Not removable media, just report okay\n");
srb->result = SAM_STAT_GOOD;
sendToTransport = 0;
}
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index a48e3f90d196..92806547f485 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -8,8 +8,10 @@
#include <linux/completion.h>
#include <linux/debugfs.h>
#include <linux/device.h>
+#include <linux/hrtimer.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
+#include <linux/kthread.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/power_supply.h>
@@ -28,7 +30,8 @@
#include <linux/usb/role.h>
#include <linux/usb/tcpm.h>
#include <linux/usb/typec_altmode.h>
-#include <linux/workqueue.h>
+
+#include <uapi/linux/sched/types.h>
#define FOREACH_STATE(S) \
S(INVALID_STATE), \
@@ -203,7 +206,7 @@ struct tcpm_port {
struct device *dev;
struct mutex lock; /* tcpm state machine lock */
- struct workqueue_struct *wq;
+ struct kthread_worker *wq;
struct typec_capability typec_caps;
struct typec_port *typec_port;
@@ -247,15 +250,17 @@ struct tcpm_port {
enum tcpm_state prev_state;
enum tcpm_state state;
enum tcpm_state delayed_state;
- unsigned long delayed_runtime;
+ ktime_t delayed_runtime;
unsigned long delay_ms;
spinlock_t pd_event_lock;
u32 pd_events;
- struct work_struct event_work;
- struct delayed_work state_machine;
- struct delayed_work vdm_state_machine;
+ struct kthread_work event_work;
+ struct hrtimer state_machine_timer;
+ struct kthread_work state_machine;
+ struct hrtimer vdm_state_machine_timer;
+ struct kthread_work vdm_state_machine;
bool state_machine_running;
struct completion tx_complete;
@@ -340,7 +345,7 @@ struct tcpm_port {
};
struct pd_rx_event {
- struct work_struct work;
+ struct kthread_work work;
struct tcpm_port *port;
struct pd_message msg;
};
@@ -914,6 +919,27 @@ static int tcpm_pd_send_sink_caps(struct tcpm_port *port)
return tcpm_pd_transmit(port, TCPC_TX_SOP, &msg);
}
+static void mod_tcpm_delayed_work(struct tcpm_port *port, unsigned int delay_ms)
+{
+ if (delay_ms) {
+ hrtimer_start(&port->state_machine_timer, ms_to_ktime(delay_ms), HRTIMER_MODE_REL);
+ } else {
+ hrtimer_cancel(&port->state_machine_timer);
+ kthread_queue_work(port->wq, &port->state_machine);
+ }
+}
+
+static void mod_vdm_delayed_work(struct tcpm_port *port, unsigned int delay_ms)
+{
+ if (delay_ms) {
+ hrtimer_start(&port->vdm_state_machine_timer, ms_to_ktime(delay_ms),
+ HRTIMER_MODE_REL);
+ } else {
+ hrtimer_cancel(&port->vdm_state_machine_timer);
+ kthread_queue_work(port->wq, &port->vdm_state_machine);
+ }
+}
+
static void tcpm_set_state(struct tcpm_port *port, enum tcpm_state state,
unsigned int delay_ms)
{
@@ -922,9 +948,8 @@ static void tcpm_set_state(struct tcpm_port *port, enum tcpm_state state,
tcpm_states[port->state], tcpm_states[state],
delay_ms);
port->delayed_state = state;
- mod_delayed_work(port->wq, &port->state_machine,
- msecs_to_jiffies(delay_ms));
- port->delayed_runtime = jiffies + msecs_to_jiffies(delay_ms);
+ mod_tcpm_delayed_work(port, delay_ms);
+ port->delayed_runtime = ktime_add(ktime_get(), ms_to_ktime(delay_ms));
port->delay_ms = delay_ms;
} else {
tcpm_log(port, "state change %s -> %s",
@@ -939,7 +964,7 @@ static void tcpm_set_state(struct tcpm_port *port, enum tcpm_state state,
* machine.
*/
if (!port->state_machine_running)
- mod_delayed_work(port->wq, &port->state_machine, 0);
+ mod_tcpm_delayed_work(port, 0);
}
}
@@ -960,7 +985,7 @@ static void tcpm_queue_message(struct tcpm_port *port,
enum pd_msg_request message)
{
port->queued_message = message;
- mod_delayed_work(port->wq, &port->state_machine, 0);
+ mod_tcpm_delayed_work(port, 0);
}
/*
@@ -981,7 +1006,7 @@ static void tcpm_queue_vdm(struct tcpm_port *port, const u32 header,
port->vdm_retries = 0;
port->vdm_state = VDM_STATE_READY;
- mod_delayed_work(port->wq, &port->vdm_state_machine, 0);
+ mod_vdm_delayed_work(port, 0);
}
static void tcpm_queue_vdm_unlocked(struct tcpm_port *port, const u32 header,
@@ -1244,8 +1269,7 @@ static void tcpm_handle_vdm_request(struct tcpm_port *port,
port->vdm_state = VDM_STATE_WAIT_RSP_BUSY;
port->vdo_retry = (p[0] & ~VDO_CMDT_MASK) |
CMDT_INIT;
- mod_delayed_work(port->wq, &port->vdm_state_machine,
- msecs_to_jiffies(PD_T_VDM_BUSY));
+ mod_vdm_delayed_work(port, PD_T_VDM_BUSY);
return;
}
port->vdm_state = VDM_STATE_DONE;
@@ -1390,8 +1414,7 @@ static void vdm_run_state_machine(struct tcpm_port *port)
port->vdm_retries = 0;
port->vdm_state = VDM_STATE_BUSY;
timeout = vdm_ready_timeout(port->vdo_data[0]);
- mod_delayed_work(port->wq, &port->vdm_state_machine,
- timeout);
+ mod_vdm_delayed_work(port, timeout);
}
break;
case VDM_STATE_WAIT_RSP_BUSY:
@@ -1420,10 +1443,9 @@ static void vdm_run_state_machine(struct tcpm_port *port)
}
}
-static void vdm_state_machine_work(struct work_struct *work)
+static void vdm_state_machine_work(struct kthread_work *work)
{
- struct tcpm_port *port = container_of(work, struct tcpm_port,
- vdm_state_machine.work);
+ struct tcpm_port *port = container_of(work, struct tcpm_port, vdm_state_machine);
enum vdm_states prev_state;
mutex_lock(&port->lock);
@@ -1591,6 +1613,7 @@ static int tcpm_altmode_vdm(struct typec_altmode *altmode,
struct tcpm_port *port = typec_altmode_get_drvdata(altmode);
tcpm_queue_vdm_unlocked(port, header, data, count - 1);
+
return 0;
}
@@ -2005,7 +2028,7 @@ static void tcpm_pd_ext_msg_request(struct tcpm_port *port,
}
}
-static void tcpm_pd_rx_handler(struct work_struct *work)
+static void tcpm_pd_rx_handler(struct kthread_work *work)
{
struct pd_rx_event *event = container_of(work,
struct pd_rx_event, work);
@@ -2067,10 +2090,10 @@ void tcpm_pd_receive(struct tcpm_port *port, const struct pd_message *msg)
if (!event)
return;
- INIT_WORK(&event->work, tcpm_pd_rx_handler);
+ kthread_init_work(&event->work, tcpm_pd_rx_handler);
event->port = port;
memcpy(&event->msg, msg, sizeof(*msg));
- queue_work(port->wq, &event->work);
+ kthread_queue_work(port->wq, &event->work);
}
EXPORT_SYMBOL_GPL(tcpm_pd_receive);
@@ -2123,9 +2146,9 @@ static bool tcpm_send_queued_message(struct tcpm_port *port)
} while (port->queued_message != PD_MSG_NONE);
if (port->delayed_state != INVALID_STATE) {
- if (time_is_after_jiffies(port->delayed_runtime)) {
- mod_delayed_work(port->wq, &port->state_machine,
- port->delayed_runtime - jiffies);
+ if (ktime_after(port->delayed_runtime, ktime_get())) {
+ mod_tcpm_delayed_work(port, ktime_to_ms(ktime_sub(port->delayed_runtime,
+ ktime_get())));
return true;
}
port->delayed_state = INVALID_STATE;
@@ -3258,10 +3281,9 @@ static void run_state_machine(struct tcpm_port *port)
case SNK_DISCOVERY_DEBOUNCE_DONE:
if (!tcpm_port_is_disconnected(port) &&
tcpm_port_is_sink(port) &&
- time_is_after_jiffies(port->delayed_runtime)) {
+ ktime_after(port->delayed_runtime, ktime_get())) {
tcpm_set_state(port, SNK_DISCOVERY,
- jiffies_to_msecs(port->delayed_runtime -
- jiffies));
+ ktime_to_ms(ktime_sub(port->delayed_runtime, ktime_get())));
break;
}
tcpm_set_state(port, unattached_state(port), 0);
@@ -3573,7 +3595,7 @@ static void run_state_machine(struct tcpm_port *port)
*/
tcpm_set_pwr_role(port, TYPEC_SOURCE);
tcpm_pd_send_control(port, PD_CTRL_PS_RDY);
- tcpm_set_state(port, SRC_STARTUP, 0);
+ tcpm_set_state(port, SRC_STARTUP, PD_T_SWAP_SRC_START);
break;
case VCONN_SWAP_ACCEPT:
@@ -3674,10 +3696,9 @@ static void run_state_machine(struct tcpm_port *port)
}
}
-static void tcpm_state_machine_work(struct work_struct *work)
+static void tcpm_state_machine_work(struct kthread_work *work)
{
- struct tcpm_port *port = container_of(work, struct tcpm_port,
- state_machine.work);
+ struct tcpm_port *port = container_of(work, struct tcpm_port, state_machine);
enum tcpm_state prev_state;
mutex_lock(&port->lock);
@@ -4041,7 +4062,7 @@ static void _tcpm_pd_hard_reset(struct tcpm_port *port)
0);
}
-static void tcpm_pd_event_handler(struct work_struct *work)
+static void tcpm_pd_event_handler(struct kthread_work *work)
{
struct tcpm_port *port = container_of(work, struct tcpm_port,
event_work);
@@ -4082,7 +4103,7 @@ void tcpm_cc_change(struct tcpm_port *port)
spin_lock(&port->pd_event_lock);
port->pd_events |= TCPM_CC_EVENT;
spin_unlock(&port->pd_event_lock);
- queue_work(port->wq, &port->event_work);
+ kthread_queue_work(port->wq, &port->event_work);
}
EXPORT_SYMBOL_GPL(tcpm_cc_change);
@@ -4091,7 +4112,7 @@ void tcpm_vbus_change(struct tcpm_port *port)
spin_lock(&port->pd_event_lock);
port->pd_events |= TCPM_VBUS_EVENT;
spin_unlock(&port->pd_event_lock);
- queue_work(port->wq, &port->event_work);
+ kthread_queue_work(port->wq, &port->event_work);
}
EXPORT_SYMBOL_GPL(tcpm_vbus_change);
@@ -4100,7 +4121,7 @@ void tcpm_pd_hard_reset(struct tcpm_port *port)
spin_lock(&port->pd_event_lock);
port->pd_events = TCPM_RESET_EVENT;
spin_unlock(&port->pd_event_lock);
- queue_work(port->wq, &port->event_work);
+ kthread_queue_work(port->wq, &port->event_work);
}
EXPORT_SYMBOL_GPL(tcpm_pd_hard_reset);
@@ -4808,6 +4829,22 @@ static int devm_tcpm_psy_register(struct tcpm_port *port)
return PTR_ERR_OR_ZERO(port->psy);
}
+static enum hrtimer_restart state_machine_timer_handler(struct hrtimer *timer)
+{
+ struct tcpm_port *port = container_of(timer, struct tcpm_port, state_machine_timer);
+
+ kthread_queue_work(port->wq, &port->state_machine);
+ return HRTIMER_NORESTART;
+}
+
+static enum hrtimer_restart vdm_state_machine_timer_handler(struct hrtimer *timer)
+{
+ struct tcpm_port *port = container_of(timer, struct tcpm_port, vdm_state_machine_timer);
+
+ kthread_queue_work(port->wq, &port->vdm_state_machine);
+ return HRTIMER_NORESTART;
+}
+
struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
{
struct tcpm_port *port;
@@ -4829,12 +4866,18 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
mutex_init(&port->lock);
mutex_init(&port->swap_lock);
- port->wq = create_singlethread_workqueue(dev_name(dev));
- if (!port->wq)
- return ERR_PTR(-ENOMEM);
- INIT_DELAYED_WORK(&port->state_machine, tcpm_state_machine_work);
- INIT_DELAYED_WORK(&port->vdm_state_machine, vdm_state_machine_work);
- INIT_WORK(&port->event_work, tcpm_pd_event_handler);
+ port->wq = kthread_create_worker(0, dev_name(dev));
+ if (IS_ERR(port->wq))
+ return ERR_CAST(port->wq);
+ sched_set_fifo(port->wq->task);
+
+ kthread_init_work(&port->state_machine, tcpm_state_machine_work);
+ kthread_init_work(&port->vdm_state_machine, vdm_state_machine_work);
+ kthread_init_work(&port->event_work, tcpm_pd_event_handler);
+ hrtimer_init(&port->state_machine_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+ port->state_machine_timer.function = state_machine_timer_handler;
+ hrtimer_init(&port->vdm_state_machine_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+ port->vdm_state_machine_timer.function = vdm_state_machine_timer_handler;
spin_lock_init(&port->pd_event_lock);
@@ -4886,7 +4929,7 @@ out_role_sw_put:
usb_role_switch_put(port->role_sw);
out_destroy_wq:
tcpm_debugfs_exit(port);
- destroy_workqueue(port->wq);
+ kthread_destroy_worker(port->wq);
return ERR_PTR(err);
}
EXPORT_SYMBOL_GPL(tcpm_register_port);
@@ -4901,7 +4944,7 @@ void tcpm_unregister_port(struct tcpm_port *port)
typec_unregister_port(port->typec_port);
usb_role_switch_put(port->role_sw);
tcpm_debugfs_exit(port);
- destroy_workqueue(port->wq);
+ kthread_destroy_worker(port->wq);
}
EXPORT_SYMBOL_GPL(tcpm_unregister_port);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-16 16:14:17 +0000