@@ -298,12 +298,17 @@ 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)) {
- p->iotype = UPIO_MEM32;
- p->regshift = 2;
- p->serial_in = dw8250_serial_in32;
+ 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;
+ data->uart_16550_compatible = true;
+ }
p->set_termios = dw8250_set_termios;
- /* So far none of there implement the Busy Functionality */
- data->uart_16550_compatible = true;
}
/* Platforms with iDMA */
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: Heikki Krogerus <heikki.krogerus@linux.intel.com> Cc: Feng Kan <fkan@apm.com> --- drivers/tty/serial/8250/8250_dw.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-)