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-rw-r--r--drivers/bluetooth/hci_ldisc.c24
-rw-r--r--drivers/bluetooth/hci_uart.h1
-rw-r--r--drivers/tty/serial/imx.c79
-rw-r--r--drivers/usb/chipidea/otg.c7
4 files changed, 35 insertions, 76 deletions
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index bc68a440d432..c4d2f0e48685 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -118,10 +118,6 @@ static inline struct sk_buff *hci_uart_dequeue(struct hci_uart *hu)
int hci_uart_tx_wakeup(struct hci_uart *hu)
{
- struct tty_struct *tty = hu->tty;
- struct hci_dev *hdev = hu->hdev;
- struct sk_buff *skb;
-
if (test_and_set_bit(HCI_UART_SENDING, &hu->tx_state)) {
set_bit(HCI_UART_TX_WAKEUP, &hu->tx_state);
return 0;
@@ -129,6 +125,22 @@ int hci_uart_tx_wakeup(struct hci_uart *hu)
BT_DBG("");
+ schedule_work(&hu->write_work);
+
+ return 0;
+}
+
+static void hci_uart_write_work(struct work_struct *work)
+{
+ struct hci_uart *hu = container_of(work, struct hci_uart, write_work);
+ struct tty_struct *tty = hu->tty;
+ struct hci_dev *hdev = hu->hdev;
+ struct sk_buff *skb;
+
+ /* REVISIT: should we cope with bad skbs or ->write() returning
+ * and error value ?
+ */
+
restart:
clear_bit(HCI_UART_TX_WAKEUP, &hu->tx_state);
@@ -153,7 +165,6 @@ restart:
goto restart;
clear_bit(HCI_UART_SENDING, &hu->tx_state);
- return 0;
}
static void hci_uart_init_work(struct work_struct *work)
@@ -289,6 +300,7 @@ static int hci_uart_tty_open(struct tty_struct *tty)
tty->receive_room = 65536;
INIT_WORK(&hu->init_ready, hci_uart_init_work);
+ INIT_WORK(&hu->write_work, hci_uart_write_work);
spin_lock_init(&hu->rx_lock);
@@ -326,6 +338,8 @@ static void hci_uart_tty_close(struct tty_struct *tty)
if (hdev)
hci_uart_close(hdev);
+ cancel_work_sync(&hu->write_work);
+
if (test_and_clear_bit(HCI_UART_PROTO_SET, &hu->flags)) {
if (hdev) {
if (test_bit(HCI_UART_REGISTERED, &hu->flags))
diff --git a/drivers/bluetooth/hci_uart.h b/drivers/bluetooth/hci_uart.h
index fffa61ff5cb1..12df101ca942 100644
--- a/drivers/bluetooth/hci_uart.h
+++ b/drivers/bluetooth/hci_uart.h
@@ -68,6 +68,7 @@ struct hci_uart {
unsigned long hdev_flags;
struct work_struct init_ready;
+ struct work_struct write_work;
struct hci_uart_proto *proto;
void *priv;
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index dff0f0a472ea..3b6c1a2e25de 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1116,25 +1116,25 @@ static int imx_startup(struct uart_port *port)
*/
if (sport->txirq > 0) {
retval = request_irq(sport->rxirq, imx_rxint, 0,
- DRIVER_NAME, sport);
+ dev_name(port->dev), sport);
if (retval)
goto error_out1;
retval = request_irq(sport->txirq, imx_txint, 0,
- DRIVER_NAME, sport);
+ dev_name(port->dev), sport);
if (retval)
goto error_out2;
/* do not use RTS IRQ on IrDA */
if (!USE_IRDA(sport)) {
retval = request_irq(sport->rtsirq, imx_rtsint, 0,
- DRIVER_NAME, sport);
+ dev_name(port->dev), sport);
if (retval)
goto error_out3;
}
} else {
retval = request_irq(sport->port.irq, imx_int, 0,
- DRIVER_NAME, sport);
+ dev_name(port->dev), sport);
if (retval) {
free_irq(sport->port.irq, sport);
goto error_out1;
@@ -1469,44 +1469,13 @@ static const char *imx_type(struct uart_port *port)
}
/*
- * Release the memory region(s) being used by 'port'.
- */
-static void imx_release_port(struct uart_port *port)
-{
- struct platform_device *pdev = to_platform_device(port->dev);
- struct resource *mmres;
-
- mmres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(mmres->start, resource_size(mmres));
-}
-
-/*
- * Request the memory region(s) being used by 'port'.
- */
-static int imx_request_port(struct uart_port *port)
-{
- struct platform_device *pdev = to_platform_device(port->dev);
- struct resource *mmres;
- void *ret;
-
- mmres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!mmres)
- return -ENODEV;
-
- ret = request_mem_region(mmres->start, resource_size(mmres), "imx-uart");
-
- return ret ? 0 : -EBUSY;
-}
-
-/*
* Configure/autoconfigure the port.
*/
static void imx_config_port(struct uart_port *port, int flags)
{
struct imx_port *sport = (struct imx_port *)port;
- if (flags & UART_CONFIG_TYPE &&
- imx_request_port(&sport->port) == 0)
+ if (flags & UART_CONFIG_TYPE)
sport->port.type = PORT_IMX;
}
@@ -1616,8 +1585,6 @@ static struct uart_ops imx_pops = {
.flush_buffer = imx_flush_buffer,
.set_termios = imx_set_termios,
.type = imx_type,
- .release_port = imx_release_port,
- .request_port = imx_request_port,
.config_port = imx_config_port,
.verify_port = imx_verify_port,
#if defined(CONFIG_CONSOLE_POLL)
@@ -1934,7 +1901,6 @@ static void serial_imx_probe_pdata(struct imx_port *sport,
static int serial_imx_probe(struct platform_device *pdev)
{
struct imx_port *sport;
- struct imxuart_platform_data *pdata;
void __iomem *base;
int ret = 0;
struct resource *res;
@@ -1950,12 +1916,9 @@ static int serial_imx_probe(struct platform_device *pdev)
return ret;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -ENODEV;
-
- base = devm_ioremap(&pdev->dev, res->start, PAGE_SIZE);
- if (!base)
- return -ENOMEM;
+ base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
sport->port.dev = &pdev->dev;
sport->port.mapbase = res->start;
@@ -1991,38 +1954,16 @@ static int serial_imx_probe(struct platform_device *pdev)
imx_ports[sport->port.line] = sport;
- pdata = dev_get_platdata(&pdev->dev);
- if (pdata && pdata->init) {
- ret = pdata->init(pdev);
- if (ret)
- return ret;
- }
-
- ret = uart_add_one_port(&imx_reg, &sport->port);
- if (ret)
- goto deinit;
platform_set_drvdata(pdev, sport);
- return 0;
-deinit:
- if (pdata && pdata->exit)
- pdata->exit(pdev);
- return ret;
+ return uart_add_one_port(&imx_reg, &sport->port);
}
static int serial_imx_remove(struct platform_device *pdev)
{
- struct imxuart_platform_data *pdata;
struct imx_port *sport = platform_get_drvdata(pdev);
- pdata = dev_get_platdata(&pdev->dev);
-
- uart_remove_one_port(&imx_reg, &sport->port);
-
- if (pdata && pdata->exit)
- pdata->exit(pdev);
-
- return 0;
+ return uart_remove_one_port(&imx_reg, &sport->port);
}
static struct platform_driver serial_imx_driver = {
diff --git a/drivers/usb/chipidea/otg.c b/drivers/usb/chipidea/otg.c
index fb8a1fe6ead3..70ac5c4028af 100644
--- a/drivers/usb/chipidea/otg.c
+++ b/drivers/usb/chipidea/otg.c
@@ -100,8 +100,11 @@ static void ci_handle_id_switch(struct ci_hdrc *ci)
if ((ci->role == CI_ROLE_HOST) && ci->hcd) {
roothub = ci->hcd->self.root_hub;
for (i = 0; i < roothub->maxchild; ++i) {
- while (usb_hub_find_child(roothub, (i + 1)))
- usleep_range(500, 1000);
+ while (usb_hub_find_child(roothub, (i + 1))) {
+ enable_irq(ci->irq);
+ usleep_range(10000, 15000);
+ disable_irq_nosync(ci->irq);
+ }
}
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-10 21:13:40 +0000