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Commit 7d6e2143 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Greg Kroah-Hartman
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serial: 8250_dw: Switch to use acpi_dev_present() 



Special settings for APMC0D08 are applied when device is present
in the system. To check its presence we may use acpi_dev_present()
instead of current open coded variant.

Cc: Feng Kan <fkan@apm.com>
Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 9d1a50a2

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

+5 −11
Original line number Diff line number Diff line
@@ -357,18 +357,12 @@ static void dw8250_quirks(struct uart_port *p, struct dw8250_data *data) 
			p->serial_in = dw8250_serial_in32be;

			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")) {

	} else if (acpi_dev_present("APMC0D08", NULL, -1)) {

		p->iotype = UPIO_MEM32;

		p->regshift = 2;

		p->serial_in = dw8250_serial_in32;

		data->uart_16550_compatible = true;

	}

	}



	/* Platforms with iDMA */

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