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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: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
hifive-unleashed-5.1
Heikki Krogerus 2016-08-23 11:33:28 +03:00 committed by Rafael J. Wysocki
parent a5565cf238
commit 20a875e2e8
1 changed files with 10 additions and 5 deletions
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15
drivers/tty/serial/8250/8250_dw.c
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@ -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 */