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Commit 20a875e2 authored by Heikki Krogerus's avatar Heikki Krogerus Committed by Rafael J. Wysocki
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serial: 8250_dw: Add quirk for APM X-Gene SoC 



The APM X-Gene SoC UART is the only board that still needs
the hard-coded values, so handle it separately in
dw8250_quirks(). The other ACPI platforms are able to
provide the values with device properties.

Signed-off-by: default avatarHeikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent a5565cf2

drivers/tty/serial/8250/8250_dw.c

+10 −5
Original line number Diff line number Diff line
@@ -298,13 +298,18 @@ static void dw8250_quirks(struct uart_port *p, struct dw8250_data *data) 
			p->serial_out = dw8250_serial_out32be;

		}

	} else if (has_acpi_companion(p->dev)) {

		const struct acpi_device_id *id;



		id = acpi_match_device(p->dev->driver->acpi_match_table,

				       p->dev);

		if (id && !strcmp(id->id, "APMC0D08")) {

			p->iotype = UPIO_MEM32;

			p->regshift = 2;

			p->serial_in = dw8250_serial_in32;

		p->set_termios = dw8250_set_termios;

		/* So far none of there implement the Busy Functionality */

			data->uart_16550_compatible = true;

		}

		p->set_termios = dw8250_set_termios;

	}



	/* Platforms with iDMA */

	if (platform_get_resource_byname(to_platform_device(p->dev),