[PATCH v1 5/6] serial: 8250_platform: Remove unneeded ->iotype assignment

From: Andy Shevchenko
Date: Fri Jan 24 2025 - 11:16:14 EST


If ->iobase is set the default will be UPIO_PORT for ->iotype after
the uart_read_and_validate_port_properties() call. Hence no need
to assign that explicitly. Otherwise it will be UPIO_MEM.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/tty/serial/8250/8250_platform.c | 9 ---------
1 file changed, 9 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_platform.c b/drivers/tty/serial/8250/8250_platform.c
index 348b7fa2e94d..d8cbd8d87b0e 100644
--- a/drivers/tty/serial/8250/8250_platform.c
+++ b/drivers/tty/serial/8250/8250_platform.c
@@ -112,7 +112,6 @@ static int serial8250_probe_acpi(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct uart_8250_port uart = { };
struct resource *regs;
- unsigned char iotype;
int ret, line;

regs = platform_get_mem_or_io(pdev, 0);
@@ -122,13 +121,11 @@ static int serial8250_probe_acpi(struct platform_device *pdev)
switch (resource_type(regs)) {
case IORESOURCE_IO:
uart.port.iobase = regs->start;
- iotype = UPIO_PORT;
break;
case IORESOURCE_MEM:
uart.port.mapbase = regs->start;
uart.port.mapsize = resource_size(regs);
uart.port.flags = UPF_IOREMAP;
- iotype = UPIO_MEM;
break;
default:
return -EINVAL;
@@ -147,12 +144,6 @@ static int serial8250_probe_acpi(struct platform_device *pdev)
if (ret)
return ret;

- /*
- * The previous call may not set iotype correctly when reg-io-width
- * property is absent and it doesn't support IO port resource.
- */
- uart.port.iotype = iotype;
-
line = serial8250_register_8250_port(&uart);
if (line < 0)
return line;
--
2.43.0.rc1.1336.g36b5255a03ac