From e2afb1d66644a3c55e3a46ba312e302a065ecac5 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Date: Fri, 1 Nov 2013 09:18:38 -0700 Subject: [PATCH] Revert "usb: pl2303: also use the divisor based baud rate encoding method for baud rates < 115200 with HX chips" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This reverts commit 61fa8d694b8547894b57ea0d99d0120a58f6ebf8. 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> --- drivers/usb/serial/pl2303.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 09fb55cf3be7..61c9f9d28ee9 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -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); -- GitLab