]> git.ipfire.org Git - thirdparty/kernel/stable.git/commitdiff
USB: serial: ftdi_sio: enable NDI speed hack consistently
authorJohan Hovold <johan@kernel.org>
Mon, 10 Nov 2025 11:12:10 +0000 (12:12 +0100)
committerJohan Hovold <johan@kernel.org>
Mon, 17 Nov 2025 10:23:22 +0000 (11:23 +0100)
The original submission adding support for NDI EMGUIDE Gemini enabled
the existing NDI speed hack which remaps the 19200 line speed to 1.2
Mbps, but this silently fell out during resubmission.

Enable the speed hack also for the new NDI product for consistency. This
will also allow for cleaning up the implementation without resorting to
overengineering.

Link: https://lore.kernel.org/all/YQXPR01MB49870CB7B3075ADDF88A3FD4DF43A@YQXPR01MB4987.CANPRD01.PROD.OUTLOOK.COM/
Link: https://lore.kernel.org/all/YQXPR01MB4987F1E0DA41E689779E6958DF48A@YQXPR01MB4987.CANPRD01.PROD.OUTLOOK.COM/
Cc: Ryan Mann <rmann@ndigital.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
drivers/usb/serial/ftdi_sio.c

index 7e6e7b7c21eaf1c996cb6c3a15db5d9562503140..58dbf922208c7a0b193eef836ee32ffffb5a8ffc 100644 (file)
@@ -1311,7 +1311,8 @@ static u32 get_ftdi_divisor(struct tty_struct *tty,
                             (product_id == FTDI_NDI_SPECTRA_SCU_PID)   ||
                             (product_id == FTDI_NDI_FUTURE_2_PID)      ||
                             (product_id == FTDI_NDI_FUTURE_3_PID)      ||
-                            (product_id == FTDI_NDI_AURORA_SCU_PID))   &&
+                            (product_id == FTDI_NDI_AURORA_SCU_PID)    ||
+                            (product_id == FTDI_NDI_EMGUIDE_GEMINI_PID)) &&
                            (baud == 19200)) {
                                baud = 1200000;
                        }