| Message ID | 20200219080130.4334-1-lkundrak@v3.sk |
|---|---|
| State | New |
| Headers | show |
| Series | serial: 8250_pxa: avoid autodetecting the port type | expand |
diff --git a/drivers/tty/serial/8250/8250_pxa.c b/drivers/tty/serial/8250/8250_pxa.c index c47188860e325..11612d174716f 100644 --- a/drivers/tty/serial/8250/8250_pxa.c +++ b/drivers/tty/serial/8250/8250_pxa.c @@ -123,7 +123,7 @@ static int serial_pxa_probe(struct platform_device *pdev) uart.port.regshift = 2; uart.port.irq = irqres->start; uart.port.fifosize = 64; - uart.port.flags = UPF_IOREMAP | UPF_SKIP_TEST; + uart.port.flags = UPF_IOREMAP | UPF_SKIP_TEST | UPF_FIXED_TYPE; uart.port.dev = &pdev->dev; uart.port.uartclk = clk_get_rate(data->clk); uart.port.pm = serial_pxa_pm;
If we're unlucky enough that this drivers binds to a mrvl,mmp-uart device on a MMP3, the port type gets detected as 16550A instead of XScale, and it won't work. Other drivers that may bind to the same hardware are 8250_of and, god forbid, serial_pxa. Force the port type, we know it's a PORT_XSCALE. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> --- drivers/tty/serial/8250/8250_pxa.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)