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serial: sc16is7xx: use new UPIO_BUS as iotype

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Now that we have a new UPIO_BUS I/O type, use it to register our serial
port and remove ambiguous membase/iobase workaround.

Note that commit 5da6b1c079 ("sc16is7xx: Set iobase to device index")
used the iobase field as an index within the device to allow infering
the order through sysfs, but this is no longer needed since
commit 1ef2c2df11 ("serial: core: Fix serial core controller port name
to show controller id").

Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://patch.msgid.link/20260521-tty-upio-v3-8-bf74567994a0@dimonoff.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hugo Villeneuve
2026-05-21 14:16:54 -04:00
committed by Greg Kroah-Hartman
parent 44b374622a
commit ac60073d41
1 changed files with 1 additions and 8 deletions
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9
drivers/tty/serial/sc16is7xx.c
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@@ -1472,14 +1472,7 @@ static int sc16is7xx_setup_channel(struct sc16is7xx_one *one, int i,
port->type = PORT_SC16IS7XX;
port->fifosize = SC16IS7XX_FIFO_SIZE;
port->flags = UPF_FIXED_TYPE | UPF_LOW_LATENCY;
port->iobase = i;
/*
* Use all ones as membase to make sure uart_configure_port() in
* serial_core.c does not abort for SPI/I2C devices where the
* membase address is not applicable.
*/
port->membase = (void __iomem *)~0;
port->iotype = UPIO_PORT;
port->iotype = UPIO_BUS;
port->rs485_config = sc16is7xx_config_rs485;
port->rs485_supported = sc16is7xx_rs485_supported;
port->ops = &sc16is7xx_ops;