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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-11-01 20:19:56 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-11-01 20:19:56 +0400 |
| commit | 54dc5792ea933a3ff8c62a1f9ea9e4e6cbdd324a (patch) | |
| tree | c8dc7fe957554285192d8ab1af6187f495616548 | |
| parent | 1796a228762cd0b86e14d6d4a3de9ecfe65b3b8d (diff) | |
| download | linux-54dc5792ea933a3ff8c62a1f9ea9e4e6cbdd324a.tar.xz | |
Revert "USB: pl2303: restrict the divisor based baud rate encoding method to the "HX" chip type"
This reverts commit b8bdad608213caffa081a97d2e937e5fe08c4046.
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>
| -rw-r--r-- | drivers/usb/serial/pl2303.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 244820193e10..1e6de4cd079d 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -305,14 +305,10 @@ static void pl2303_encode_baudrate(struct tty_struct *tty, if (spriv->type != HX) baud = min_t(int, baud, 1228800); - if (spriv->type != HX || baud <= 115200) { - /* Direct (standard) baud rate encoding method */ + if (baud <= 115200) { put_unaligned_le32(baud, buf); } else { /* - * NOTE: it's not clear if the type_0/1 chips - * support this method - * * Apparently the formula for higher speeds is: * baudrate = 12M * 32 / (2^buf[1]) / buf[0] */ |