[v3,1/2] USB: serial: cp210x: Enable usb generic throttle/unthrottle

Message ID DM6PR11MB28578CA6D09D13A07D7959D99C950@DM6PR11MB2857.namprd11.prod.outlook.com
State Superseded
Headers show
Series
  • [v3,1/2] USB: serial: cp210x: Enable usb generic throttle/unthrottle
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Commit Message

Phu Luu June 24, 2020, 7:01 a.m.
Assign the .throttle and .unthrottle functions to be generic function
in the driver structure to prevent data loss that can otherwise occur
if the host does not enable USB throttling.

Signed-off-by: Phu Luu <phu.luu@silabs.com>
Signed-off-by: Brant Merryman <brant.merryman@silabs.com>
---
06/09/2020: Patch v3 1/2 Modified based on feedback from Johan Hovold <johan@kernel.org>
12/18/2019: Patch v2 Broken into two patches and modified based on feedback from Johan Hovold <johan@kernel.org>
12/09/2019: Initial submission of patch "Proper RTS control when buffers fill"

 drivers/usb/serial/cp210x.c | 2 ++
 1 file changed, 2 insertions(+)

Patch

diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index f5143eedbc48..bcceb4ad8be0 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -272,6 +272,8 @@  static struct usb_serial_driver cp210x_device = {
 	.break_ctl		= cp210x_break_ctl,
 	.set_termios		= cp210x_set_termios,
 	.tx_empty		= cp210x_tx_empty,
+	.throttle		= usb_serial_generic_throttle,
+	.unthrottle		= usb_serial_generic_unthrottle,
 	.tiocmget		= cp210x_tiocmget,
 	.tiocmset		= cp210x_tiocmset,
 	.attach			= cp210x_attach,