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Subject[PATCH 07/36] serial: 8250_exar: Fill in rs485_supported
Date
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(+)

diff --git a/drivers/tty/serial/8250/8250_exar.c b/drivers/tty/serial/8250/8250_exar.c
index 7292917ac878..11916f603a3d 100644
--- a/drivers/tty/serial/8250/8250_exar.c
+++ b/drivers/tty/serial/8250/8250_exar.c
@@ -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
--
2.30.2
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