diff options
Diffstat (limited to 'drivers/usb/serial/pl2303.c')
| -rw-r--r-- | drivers/usb/serial/pl2303.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index e9bad928039..0f872e6b2c8 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -162,6 +162,9 @@ static const struct pl2303_type_data pl2303_type_data[TYPE_COUNT] = { .max_baud_rate = 1228800, .quirks = PL2303_QUIRK_LEGACY, }, + [TYPE_HX] = { + .max_baud_rate = 12000000, + }, }; static int pl2303_vendor_read(struct usb_serial *serial, u16 value, @@ -395,16 +398,14 @@ static void pl2303_encode_baud_rate(struct tty_struct *tty, if (spriv->type->max_baud_rate) baud = min_t(speed_t, baud, spriv->type->max_baud_rate); /* - * Set baud rate to nearest supported value. - * - * NOTE: Baud rate 500k can only be set using divisors. + * Use direct method for supported baud rates, otherwise use divisors. */ baud_sup = pl2303_get_supported_baud_rate(baud); - if (baud == 500000) - baud = pl2303_encode_baud_rate_divisor(buf, baud); + if (baud == baud_sup) + baud = pl2303_encode_baud_rate_direct(buf, baud); else - baud = pl2303_encode_baud_rate_direct(buf, baud_sup); + baud = pl2303_encode_baud_rate_divisor(buf, baud); /* Save resulting baud rate */ tty_encode_baud_rate(tty, baud, baud); |