diff options
| author | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2022-06-06 13:04:04 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-10 13:49:25 +0200 |
| commit | 59c221f8e1269278161313048c71929c9950b2c4 (patch) | |
| tree | 0623136596f5809b133436b497c7701c141b5546 /drivers/tty/serial/8250 | |
| parent | 62a4b3d274192c845cde4e885bfa7c2bedf18330 (diff) | |
serial: 8250_exar: 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/20220606100433.13793-8-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/8250')
| -rw-r--r-- | drivers/tty/serial/8250/8250_exar.c | 12 |
1 files changed, 12 insertions, 0 deletions
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 |