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From:   Frank Zago <frank@zago.net>
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-kernel@vger.kernel.org,
        Jan-Niklas Burfeind <kernel@aiyionpri.me>,
        Bartosz Golaszewski <bgolaszewski@baylibre.com>,
        Wolfram Sang <wsa@kernel.org>, Johan Hovold <johan@kernel.org>,
        linux-usb@vger.kernel.org, gunar@schorcht.net
Cc:     frank zago <frank@zago.net>
Subject: [PATCH v2 1/2] Revert "USB: serial: ch341: add new Product ID for CH341A"
Date:   Thu, 22 Apr 2021 19:28:51 -0500
Message-Id: <20210423002852.3904-1-frank@zago.net>
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From: frank zago <frank@zago.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@zago.net>
---

Changes from v1:
  - Removed double Signed-off-by

 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