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Subject[PATCH v1 2/3] serial: 8250_exar: Extract exar_get_platform() helper
Date
We would like to use DMI matching in other functions as well.
Hence, extract it as exar_get_platform() helper function.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/tty/serial/8250/8250_exar.c | 20 ++++++++++++--------
1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_exar.c b/drivers/tty/serial/8250/8250_exar.c
index bd4e9f6ac29c..3ffeedc29c83 100644
--- a/drivers/tty/serial/8250/8250_exar.c
+++ b/drivers/tty/serial/8250/8250_exar.c
@@ -501,23 +501,27 @@ static const struct dmi_system_id exar_platforms[] = {
{}
};

+static const struct exar8250_platform *exar_get_platform(void)
+{
+ const struct dmi_system_id *dmi_match;
+
+ dmi_match = dmi_first_match(exar_platforms);
+ if (dmi_match)
+ return dmi_match->driver_data;
+
+ return &exar8250_default_platform;
+}
+
static int
pci_xr17v35x_setup(struct exar8250 *priv, struct pci_dev *pcidev,
struct uart_8250_port *port, int idx)
{
- const struct exar8250_platform *platform;
- const struct dmi_system_id *dmi_match;
+ const struct exar8250_platform *platform = exar_get_platform();
unsigned int offset = idx * 0x400;
unsigned int baud = 7812500;
u8 __iomem *p;
int ret;

- dmi_match = dmi_first_match(exar_platforms);
- if (dmi_match)
- platform = dmi_match->driver_data;
- else
- platform = &exar8250_default_platform;
-
port->port.uartclk = baud * 16;
port->port.rs485_config = platform->rs485_config;

--
2.30.2
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