linux-kernel - [PATCH 1/2] Revert "USB: serial: ch341: add new Product ID for CH341A"

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Date:   Mon, 19 Apr 2021 21:25:19 -0500
From:   Frank Zago <frank@...o.net>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org,
        Jan-Niklas Burfeind <kernel@...ionpri.me>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Wolfram Sang <wsa@...nel.org>, Johan Hovold <johan@...nel.org>,
        linux-usb@...r.kernel.org
Cc:     frank zago <frank@...o.net>
Subject: [PATCH 1/2] Revert "USB: serial: ch341: add new Product ID for CH341A"

From: frank zago <frank@...o.net>

The 0x5512 USB PID is for the I2C/GPIO/SPI interfaces. UART is still
present but only the TX and RX pins are available; DTS, DTR, ... are
used for other things. Remove the PID, and let a I2C driver bind to
it.

Existing CH341 boards usually have physical jumpers to switch between
the 3 modes.

This reverts commit 46ee4abb10a07bd8f8ce910ee6b4ae6a947d7f63.

Signed-off-by: Frank Zago <frank@...o.net>
Signed-off-by: frank zago <frank@...o.net>
---
 drivers/usb/serial/ch341.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 2db917eab799..235adc77ee0e 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -81,7 +81,6 @@
 #define CH341_QUIRK_SIMULATE_BREAK	BIT(1)
 
 static const struct usb_device_id id_table[] = {
-	{ USB_DEVICE(0x1a86, 0x5512) },
 	{ USB_DEVICE(0x1a86, 0x5523) },
 	{ USB_DEVICE(0x1a86, 0x7522) },
 	{ USB_DEVICE(0x1a86, 0x7523) },
-- 
2.27.0