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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2018-03-01 13:41:29 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-03-09 10:24:38 -0800
commit7d6e2143bed7dd61dac3a00321292b36d63c2a2f (patch)
tree7d33dffef7d8755d126b2f161b7be3ea44097b26 /drivers/tty
parent9d1a50a2cceb3a8589531f7a2652f1a478df8907 (diff)
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>
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/serial/8250/8250_dw.c16
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index 41618b780146..6fcdb90f616a 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -357,17 +357,11 @@ 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")) {
- p->iotype = UPIO_MEM32;
- p->regshift = 2;
- p->serial_in = dw8250_serial_in32;
- data->uart_16550_compatible = true;
- }
+ } 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 */