From: Johan Hovold <johan@kernel.org>
Date: Wed, 4 Aug 2021 09:31:00 +0000 (+0200)
Subject: USB: serial: pl2303: fix GT type detection
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=3212a99349cee5fb611d3ffcf0e65bc3cd6dcf2f;p=linux.git

USB: serial: pl2303: fix GT type detection

At least some PL2303GT have a bcdDevice of 0x305 instead of 0x100 as the
datasheet claims. Add it to the list of known release numbers for the
HXN (G) type.

Fixes: 894758d0571d ("USB: serial: pl2303: tighten type HXN (G) detection")
Reported-by: Vasily Khoruzhick <anarsoul@gmail.com>
Tested-by: Vasily Khoruzhick <anarsoul@gmail.com>
Cc: stable@vger.kernel.org	# 5.13
Link: https://lore.kernel.org/r/20210804093100.24811-1-johan@kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
---

diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 17601e32083ef..930b3d50a3308 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -432,6 +432,7 @@ static int pl2303_detect_type(struct usb_serial *serial)
 	case 0x200:
 		switch (bcdDevice) {
 		case 0x100:
+		case 0x305:
 			/*
 			 * Assume it's an HXN-type if the device doesn't
 			 * support the old read request value.