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Date: Mon, 6 Jun 2022 13:04:03 +0300 From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com> To: linux-serial@...r.kernel.org, Greg KH <gregkh@...uxfoundation.org>, Jiri Slaby <jirislaby@...nel.org>, Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, linux-kernel@...r.kernel.org Cc: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com> Subject: [PATCH 06/36] serial: 8250_dwlib: Fill in rs485_supported Add information on supported serial_rs485 features. When the driver is using em485, take advantage of serial8250_em485_supported. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com> --- drivers/tty/serial/8250/8250_dwlib.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/tty/serial/8250/8250_dwlib.c b/drivers/tty/serial/8250/8250_dwlib.c index fbabfdd8c7b8..120b29519d74 100644 --- a/drivers/tty/serial/8250/8250_dwlib.c +++ b/drivers/tty/serial/8250/8250_dwlib.c @@ -149,6 +149,11 @@ static bool dw8250_detect_rs485_hw(struct uart_port *p) return reg; } +static const struct serial_rs485 dw8250_rs485_supported = { + .flags = SER_RS485_ENABLED | SER_RS485_RX_DURING_TX | SER_RS485_RTS_ON_SEND | + SER_RS485_RTS_AFTER_SEND, +}; + void dw8250_setup_port(struct uart_port *p) { struct dw8250_port_data *pd = p->private_data; @@ -159,8 +164,10 @@ void dw8250_setup_port(struct uart_port *p) pd->hw_rs485_support = dw8250_detect_rs485_hw(p); if (pd->hw_rs485_support) { p->rs485_config = dw8250_rs485_config; + p->rs485_supported = &dw8250_rs485_supported; } else { p->rs485_config = serial8250_em485_config; + p->rs485_supported = &serial8250_em485_supported; up->rs485_start_tx = serial8250_em485_start_tx; up->rs485_stop_tx = serial8250_em485_stop_tx; } -- 2.30.2
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