From: Ilpo Järvinen ilpo.jarvinen@linux.intel.com
[ Upstream commit 07481f448b635d7cebb92d5940f5bea5c4395a26 ]
Add information on supported serial_rs485 features.
Signed-off-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com Link: https://lore.kernel.org/r/20220606100433.13793-16-ilpo.jarvinen@linux.intel.... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Stable-dep-of: 76bad3f88750 ("tty: serial: fsl_lpuart: don't break the on-going transfer when global reset") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/tty/serial/fsl_lpuart.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 44ed4285e1ef..1d13d88ea363 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -2644,6 +2644,11 @@ static struct uart_driver lpuart_reg = { .cons = LPUART_CONSOLE, };
+static const struct serial_rs485 lpuart_rs485_supported = { + .flags = SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND | SER_RS485_RTS_AFTER_SEND, + /* delay_rts_* and RX_DURING_TX are not supported */ +}; + static int lpuart_probe(struct platform_device *pdev) { const struct lpuart_soc_data *sdata = of_device_get_match_data(&pdev->dev); @@ -2683,6 +2688,7 @@ static int lpuart_probe(struct platform_device *pdev) sport->port.rs485_config = lpuart32_config_rs485; else sport->port.rs485_config = lpuart_config_rs485; + sport->port.rs485_supported = &lpuart_rs485_supported;
sport->ipg_clk = devm_clk_get(&pdev->dev, "ipg"); if (IS_ERR(sport->ipg_clk)) {