Revert "USB: pl2303: restrict the divisor based baud rate encoding me…

…thod to the "HX" chip type" This reverts commit b8bdad6. 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 <[email protected]> Cc: Frank Schäfer <[email protected]> Acked-by: Johan Hovold <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
levisjani · Nov 1, 2013 · 54dc579 · 54dc579
1 parent 1796a22
commit 54dc579
Showing 1 changed file with 1 addition and 5 deletions.
diff --git 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]
 		 */