From: Giulio Benetti <giulio.benetti@micronovasrl.com>
To: unlisted-recipients:; (no To-header on input)
Cc: matwey.kornilov@gmail.com,
Giulio Benetti <giulio.benetti@micronovasrl.com>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jslaby@suse.com>,
Joshua Scott <joshua.scott@alliedtelesis.co.nz>,
Stefan Potyra <Stefan.Potyra@elektrobit.com>,
Ed Blake <ed.blake@sondrel.com>,
linux-serial@vger.kernel.org (open list:SERIAL DRIVERS),
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH 2/4] serial: 8250_dw: allow enable rs485 at boot time
Date: Wed, 6 Jun 2018 11:51:51 +0200 [thread overview]
Message-ID: <20180606095156.72628-1-giulio.benetti@micronovasrl.com> (raw)
In-Reply-To: <CAJs94EZqdQAQG+inWvj89FCQtv06LxhY_J4YgNmK8mtvgDTchQ@mail.gmail.com>
If "linux,rs485-enabled-at-boot-time" is specified need to setup 485
in probe function.
Call uart_get_rs485_mode() to get rs485 configuration, then call
rs485_config() callback directly to setup port as rs485.
Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
---
drivers/tty/serial/8250/8250_dw.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index 45366e6e5411..0f8b4da03d4e 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -582,8 +582,11 @@ static int dw8250_probe(struct platform_device *pdev)
if (data->uart_16550_compatible)
p->handle_irq = NULL;
- if (!data->skip_autocfg)
+ if (!data->skip_autocfg) {
dw8250_setup_port(p);
+ uart_get_rs485_mode(dev, &p->rs485);
+ dw8250_rs485_config(p, &p->rs485);
+ }
/* If we have a valid fifosize, try hooking up DMA */
if (p->fifosize) {
--
2.17.1
next prev parent reply other threads:[~2018-06-06 9:52 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-01 12:40 [PATCH 0/8] serial: 8250: Add 485 emulation to 8250_dw Giulio Benetti
2018-06-01 12:40 ` [PATCH 1/8] serial: 8250_dw: add em485 support Giulio Benetti
2018-06-01 12:40 ` [PATCH 2/8] serial: 8250_dw: allow enable rs485 at boot time Giulio Benetti
2018-06-01 12:40 ` [PATCH 3/8] serial: 8250: Copy em485 from port to real port Giulio Benetti
2018-06-04 10:13 ` Andy Shevchenko
2018-06-04 10:52 ` Giulio Benetti
2018-06-01 12:40 ` [PATCH 4/8] serial: 8250: Handle case port doesn't have TEMT interrupt using em485 Giulio Benetti
2018-06-04 10:17 ` Andy Shevchenko
2018-06-04 10:50 ` Giulio Benetti
2018-06-04 11:38 ` Andy Shevchenko
2018-06-04 11:50 ` Giulio Benetti
2018-06-04 12:26 ` Andy Shevchenko
2018-06-04 17:40 ` Matwey V. Kornilov
2018-06-04 18:50 ` Giulio Benetti
2018-06-05 10:51 ` Matwey V. Kornilov
2018-06-06 9:36 ` Giulio Benetti
2018-06-06 9:49 ` [PATCH 2/4] serial: 8250: Copy mctrl when register port Giulio Benetti
2018-06-06 9:49 ` [PATCH 3/4] serial: 8250: Make em485_rts_after_send() set mctrl according to rts state Giulio Benetti
2018-06-06 12:02 ` Andy Shevchenko
2018-06-06 9:49 ` [PATCH 4/4] serial: core: Mask mctrl with TIOCM_RTS too if rs485 on and RTS_AFTER_SEND set Giulio Benetti
2018-06-06 12:03 ` Andy Shevchenko
2018-06-06 12:07 ` Giulio Benetti
2018-06-06 9:49 ` [PATCH 1/4] serial: 8250: Copy em485 from port to real port Giulio Benetti
2018-06-06 11:56 ` Andy Shevchenko
2018-06-06 12:15 ` Giulio Benetti
2018-06-06 13:11 ` Andy Shevchenko
2018-06-06 14:32 ` Giulio Benetti
2018-06-06 18:55 ` Matwey V. Kornilov
2018-06-06 19:15 ` Giulio Benetti
2018-06-07 7:03 ` Matwey V. Kornilov
2018-06-07 12:43 ` Giulio Benetti
2018-06-06 12:01 ` [PATCH 2/4] serial: 8250: Copy mctrl when register port Andy Shevchenko
2018-06-06 9:51 ` Giulio Benetti [this message]
2018-06-06 9:51 ` [PATCH 3/4] serial: 8250: Handle case port doesn't have TEMT interrupt using em485 Giulio Benetti
2018-06-13 16:59 ` Alan Cox
2018-06-06 9:51 ` [PATCH 4/4] serial: 8250_dw: treat rpm suspend with -EBUSY if RS485 ON and RTS_AFTER_SEND Giulio Benetti
2018-06-06 9:51 ` [PATCH 1/4] serial: 8250_dw: add em485 support Giulio Benetti
2018-06-06 16:51 ` Andy Shevchenko
2018-06-06 19:16 ` Giulio Benetti
2018-06-01 12:40 ` [PATCH 5/8] serial: 8250_dw: treat rpm suspend with -EBUSY if RS485 ON and RTS_AFTER_SEND Giulio Benetti
2018-06-01 12:40 ` [PATCH 6/8] serial: 8250: Copy mctrl when register port Giulio Benetti
2018-06-06 14:31 ` Aaron Sierra
2018-06-06 14:44 ` Giulio Benetti
2018-06-01 12:40 ` [PATCH 7/8] serial: 8250: Make em485_rts_after_send() set mctrl according to rts state Giulio Benetti
2018-06-01 12:40 ` [PATCH 8/8] serial: core: Mask mctrl with TIOCM_RTS too if rs485 on and RTS_AFTER_SEND set Giulio Benetti
2018-06-04 10:12 ` [PATCH 0/8] serial: 8250: Add 485 emulation to 8250_dw Andy Shevchenko
2018-06-04 10:34 ` Matwey V. Kornilov
2018-06-04 10:42 ` Giulio Benetti
2018-06-04 11:44 ` Andy Shevchenko
2018-06-04 14:58 ` Giulio Benetti
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