linux-kernel - [PATCH 5.14 04/14] USB: serial: pl2303: fix GL type detection

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Message-Id: <20210906125448.302396823@linuxfoundation.org>
Date:   Mon,  6 Sep 2021 14:55:50 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Robert Marko <robert.marko@...tura.hr>,
        Johan Hovold <johan@...nel.org>
Subject: [PATCH 5.14 04/14] USB: serial: pl2303: fix GL type detection

From: Robert Marko <robert.marko@...tura.hr>

commit dcf097e7d21fbdfbf20e473ac155f4d154018374 upstream.

At least some PL2303GL have a bcdDevice of 0x405 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")
Signed-off-by: Robert Marko <robert.marko@...tura.hr>
Cc: stable@...r.kernel.org	# 5.13
Link: https://lore.kernel.org/r/20210826110239.5269-1-robert.marko@sartura.hr
Signed-off-by: Johan Hovold <johan@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/usb/serial/pl2303.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -433,6 +433,7 @@ static int pl2303_detect_type(struct usb
 		switch (bcdDevice) {
 		case 0x100:
 		case 0x305:
+		case 0x405:
 			/*
 			 * Assume it's an HXN-type if the device doesn't
 			 * support the old read request value.