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Revert "usb: pl2303: also use the divisor based baud rate encoding method for baud rates < 115200 with HX chips"

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This reverts commit 61fa8d694b.

Revert all of the pl2303 changes that went into 3.12-rc1 and -rc2 as
they cause regressions on some versions of the chip.  This will all be
revisited for later kernel versions when we can figure out how to handle
this in a way that does not break working devices.

Reported-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Frank Schäfer <fschaefer.oss@googlemail.com>
Acked-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2013-11-01 09:18:38 -07:00
parent 233c3dda5c
commit e2afb1d666
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/serial/pl2303.c
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@ -395,7 +395,7 @@ static void pl2303_encode_baudrate(struct tty_struct *tty,
* 2) Divisor based method: encodes a divisor to a base value (12MHz*32)
* => supported by HX chips (and likely not by type_0/1 chips)
*/
if (type != HX)
if (type != HX || baud <= 115200)
baud = pl2303_baudrate_encode_direct(baud, type, buf);
else
baud = pl2303_baudrate_encode_divisor(baud, type, buf);