serial: max310x: Fill in rs485_supported

Add information on supported serial_rs485 features.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20220606100433.13793-18-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index 0f7c590..7b0c135 100644 (file)
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -1259,6 +1259,12 @@ static int max310x_gpio_set_config(struct gpio_chip *chip, unsigned int offset,
 }
 #endif
 
+static const struct serial_rs485 max310x_rs485_supported = {
+       .flags = SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND | SER_RS485_RX_DURING_TX,
+       .delay_rts_before_send = 1,
+       .delay_rts_after_send = 1,
+};
+
 static int max310x_probe(struct device *dev, const struct max310x_devtype *devtype,
                         const struct max310x_if_cfg *if_cfg,
                         struct regmap *regmaps[], int irq)
@@ -1366,6 +1372,7 @@ static int max310x_probe(struct device *dev, const struct max310x_devtype *devty
                s->p[i].port.membase    = (void __iomem *)~0;
                s->p[i].port.uartclk    = uartclk;
                s->p[i].port.rs485_config = max310x_rs485_config;
+               s->p[i].port.rs485_supported = &max310x_rs485_supported;
                s->p[i].port.ops        = &max310x_ops;
                s->p[i].regmap          = regmaps[i];