diff options
author | Stefan Agner <stefan.agner@toradex.com> | 2019-06-18 14:29:35 +0200 |
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committer | Stefan Agner <stefan.agner@toradex.com> | 2019-06-18 14:29:35 +0200 |
commit | d15d0b7a9f89cf5a905ad6802eb23100c8063939 (patch) | |
tree | 84caa660dc73842efa29e116dcb3e32aa81a5cf0 /drivers/usb/serial/f81232.c | |
parent | e9dcc568b2e968af848bbdb4267ba6cde5457b9e (diff) | |
parent | 858848641fbecd42437e36adc9291b0ce5db379e (diff) |
Merge tag 'v4.19.50-rt22' into toradex_4.19.y-rt
Linux 4.19.50-rt22
Diffstat (limited to 'drivers/usb/serial/f81232.c')
-rw-r--r-- | drivers/usb/serial/f81232.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c index 96036f87b1de..087e5f1656f8 100644 --- a/drivers/usb/serial/f81232.c +++ b/drivers/usb/serial/f81232.c @@ -556,9 +556,12 @@ static int f81232_open(struct tty_struct *tty, struct usb_serial_port *port) static void f81232_close(struct usb_serial_port *port) { + struct f81232_private *port_priv = usb_get_serial_port_data(port); + f81232_port_disable(port); usb_serial_generic_close(port); usb_kill_urb(port->interrupt_in_urb); + flush_work(&port_priv->interrupt_work); } static void f81232_dtr_rts(struct usb_serial_port *port, int on) @@ -652,6 +655,40 @@ static int f81232_port_remove(struct usb_serial_port *port) return 0; } +static int f81232_suspend(struct usb_serial *serial, pm_message_t message) +{ + struct usb_serial_port *port = serial->port[0]; + struct f81232_private *port_priv = usb_get_serial_port_data(port); + int i; + + for (i = 0; i < ARRAY_SIZE(port->read_urbs); ++i) + usb_kill_urb(port->read_urbs[i]); + + usb_kill_urb(port->interrupt_in_urb); + + if (port_priv) + flush_work(&port_priv->interrupt_work); + + return 0; +} + +static int f81232_resume(struct usb_serial *serial) +{ + struct usb_serial_port *port = serial->port[0]; + int result; + + if (tty_port_initialized(&port->port)) { + result = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO); + if (result) { + dev_err(&port->dev, "submit interrupt urb failed: %d\n", + result); + return result; + } + } + + return usb_serial_generic_resume(serial); +} + static struct usb_serial_driver f81232_device = { .driver = { .owner = THIS_MODULE, @@ -675,6 +712,8 @@ static struct usb_serial_driver f81232_device = { .read_int_callback = f81232_read_int_callback, .port_probe = f81232_port_probe, .port_remove = f81232_port_remove, + .suspend = f81232_suspend, + .resume = f81232_resume, }; static struct usb_serial_driver * const serial_drivers[] = { |