@@ -113,6 +113,7 @@ struct exar8250;
struct exar8250_platform {
int (*rs485_config)(struct uart_port *, struct serial_rs485 *);
+ const struct serial_rs485 *rs485_supported;
int (*register_gpio)(struct pci_dev *, struct uart_8250_port *);
void (*unregister_gpio)(struct uart_8250_port *);
};
@@ -431,10 +432,15 @@ static int generic_rs485_config(struct uart_port *port,
return 0;
}
+static const struct serial_rs485 generic_rs485_supported = {
+ .flags = SER_RS485_ENABLED,
+};
+
static const struct exar8250_platform exar8250_default_platform = {
.register_gpio = xr17v35x_register_gpio,
.unregister_gpio = xr17v35x_unregister_gpio,
.rs485_config = generic_rs485_config,
+ .rs485_supported = &generic_rs485_supported,
};
static int iot2040_rs485_config(struct uart_port *port,
@@ -470,6 +476,10 @@ static int iot2040_rs485_config(struct uart_port *port,
return generic_rs485_config(port, rs485);
}
+static const struct serial_rs485 iot2040_rs485_supported = {
+ .flags = SER_RS485_ENABLED | SER_RS485_RX_DURING_TX | SER_RS485_TERMINATE_BUS,
+};
+
static const struct property_entry iot2040_gpio_properties[] = {
PROPERTY_ENTRY_U32("exar,first-pin", 10),
PROPERTY_ENTRY_U32("ngpios", 1),
@@ -498,6 +508,7 @@ static int iot2040_register_gpio(struct pci_dev *pcidev,
static const struct exar8250_platform iot2040_platform = {
.rs485_config = iot2040_rs485_config,
+ .rs485_supported = &iot2040_rs485_supported,
.register_gpio = iot2040_register_gpio,
.unregister_gpio = xr17v35x_unregister_gpio,
};
@@ -540,6 +551,7 @@ pci_xr17v35x_setup(struct exar8250 *priv, struct pci_dev *pcidev,
port->port.uartclk = baud * 16;
port->port.rs485_config = platform->rs485_config;
+ port->port.rs485_supported = platform->rs485_supported;
/*
* Setup the UART clock for the devices on expansion slot to
Add information on supported serial_rs485 features. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> --- drivers/tty/serial/8250/8250_exar.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)