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Commit 5e1aeea5 authored by Feng Kan's avatar Feng Kan Committed by Greg Kroah-Hartman
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serial: 8250: add support for ACPI-probed serial port for X-Gene platform 



Enable APM X-Gene SoC serial port functionality when using ACPI table to
initialize serial port.

Signed-off-by: default avatarFeng Kan <fkan@apm.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 9bdd6369

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

+11 −0
Original line number Original line Diff line number Diff line
@@ -351,10 +351,20 @@ static int dw8250_probe_of(struct uart_port *p, 
static int dw8250_probe_acpi(struct uart_8250_port *up,

static int dw8250_probe_acpi(struct uart_8250_port *up,

			     struct dw8250_data *data)

			     struct dw8250_data *data)

{

{

	const struct acpi_device_id *id;

	struct uart_port *p = &up->port;

	struct uart_port *p = &up->port;





	dw8250_setup_port(up);

	dw8250_setup_port(up);





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

	if (!id)

		return -ENODEV;



	if (!p->uartclk)

		if (device_property_read_u32(p->dev, "clock-frequency",

					     &p->uartclk))

			return -EINVAL;



	p->iotype = UPIO_MEM32;

	p->iotype = UPIO_MEM32;

	p->serial_in = dw8250_serial_in32;

	p->serial_in = dw8250_serial_in32;

	p->serial_out = dw8250_serial_out32;

	p->serial_out = dw8250_serial_out32;
@@ -577,6 +587,7 @@ static const struct acpi_device_id dw8250_acpi_match[] = { 
	{ "INT3435", 0 },

	{ "INT3435", 0 },

	{ "80860F0A", 0 },

	{ "80860F0A", 0 },

	{ "8086228A", 0 },

	{ "8086228A", 0 },

	{ "APMC0D08", 0},

	{ },

	{ },

};

};

MODULE_DEVICE_TABLE(acpi, dw8250_acpi_match);

MODULE_DEVICE_TABLE(acpi, dw8250_acpi_match);