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serial: 8250_dw: remove useless ACPI ID check

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Having ACPI handle does not mean the same as having ACPI
identifier. The check is in any case useless, but having it
prevents this driver from being used for example with
multifunctional PCI devices, such as the newer Intel LPSS
devices.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Heikki Krogerus 2015-03-18 12:55:12 +02:00 committed by Greg Kroah-Hartman
parent ad53b26cd1
commit 9001c07995
1 changed files with 0 additions and 5 deletions
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5
drivers/tty/serial/8250/8250_dw.c
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@ -391,15 +391,10 @@ static int dw8250_probe_of(struct uart_port *p,
static int dw8250_probe_acpi(struct uart_8250_port *up,
struct dw8250_data *data)
{
const struct acpi_device_id *id;
struct uart_port *p = &up->port;
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))