diff options
Diffstat (limited to 'drivers/usb/serial')
| -rw-r--r-- | drivers/usb/serial/ftdi_sio.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index a41ce9e60b96..94398f89e600 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -2009,6 +2009,12 @@ static int ftdi_gpio_init_valid_mask(struct gpio_chip *gc, bitmap_complement(valid_mask, &map, ngpios); + if (bitmap_empty(valid_mask, ngpios)) + dev_dbg(&port->dev, "no CBUS pin configured for GPIO\n"); + else + dev_dbg(&port->dev, "CBUS%*pbl configured for GPIO\n", ngpios, + valid_mask); + return 0; } |