a9fe8ba129
This patch fixes the "Unsupported UART type 4" error by adding support for the UPIO_AU I/O type in set_io_from_upio() (used by Au1x00 and RT288x). It assigns the correct serial input/output functions (io_serial_in, io_serial_out) for proper operation when UPIO_AU is configured. Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com> Link: https://github.com/openwrt/openwrt/pull/21078 Signed-off-by: Robert Marko <robimarko@gmail.com>
26 lines
859 B
Diff
26 lines
859 B
Diff
From: Mieczyslaw Nalewaj <namiltd@yahoo.com>
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Date: Sun, 18 Jan 2026 15:24:46 +0100
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Subject: [PATCH] serial: 8250: add UPIO_AU case to set_io_from_upio()
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This patch fixes the "Unsupported UART type 4" error by adding support
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for the UPIO_AU I/O type in set_io_from_upio() (used by Au1x00 and
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RT288x). It assigns the correct serial input/output functions
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(io_serial_in, io_serial_out) for proper operation when UPIO_AU is
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configured.
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Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
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---
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drivers/tty/serial/8250/8250_port.c | 1 +
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1 file changed, 1 insertion(+)
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--- a/drivers/tty/serial/8250/8250_port.c
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+++ b/drivers/tty/serial/8250/8250_port.c
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@@ -454,6 +454,7 @@ static void set_io_from_upio(struct uart
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break;
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#ifdef CONFIG_HAS_IOPORT
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case UPIO_PORT:
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+ case UPIO_AU:
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p->serial_in = io_serial_in;
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p->serial_out = io_serial_out;
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break;
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