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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: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 5 additions and 11 deletions
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@ -357,17 +357,11 @@ static void dw8250_quirks(struct uart_port *p, struct dw8250_data *data)
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p->serial_in = dw8250_serial_in32be;
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p->serial_out = dw8250_serial_out32be;
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}
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} else if (has_acpi_companion(p->dev)) {
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const struct acpi_device_id *id;
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id = acpi_match_device(p->dev->driver->acpi_match_table,
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p->dev);
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if (id && !strcmp(id->id, "APMC0D08")) {
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p->iotype = UPIO_MEM32;
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p->regshift = 2;
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p->serial_in = dw8250_serial_in32;
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data->uart_16550_compatible = true;
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}
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} else if (acpi_dev_present("APMC0D08", NULL, -1)) {
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p->iotype = UPIO_MEM32;
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p->regshift = 2;
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p->serial_in = dw8250_serial_in32;
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data->uart_16550_compatible = true;
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}
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/* Platforms with iDMA */
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