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From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
To: "Petr Štetiar" <ynezz@true.cz>
Cc: Martin Fuzzey <mfuzzey@parkeon.com>,
	Baruch Siach <baruch@tkos.co.il>,
	linux-serial@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	kernel@pengutronix.de, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 0/6] serial: imx: handshaking fixes and improvments
Date: Tue, 12 Apr 2016 19:30:32 +0200	[thread overview]
Message-ID: <20160412173032.GS10108@pengutronix.de> (raw)
In-Reply-To: <20160412121759.GG26941@ibawizard.net>

On Tue, Apr 12, 2016 at 02:17:59PM +0200, Petr Štetiar wrote:
> Uwe Kleine-König <u.kleine-koenig@pengutronix.de> [2016-04-12 12:58:56]:
> 
> > ok, so UFCR_DCEDTE is set and UCR3_DSR controls the DTR output as
> > intended. What is connected to the respective pin?
> > MX6QDL_PAD_EIM_D25__UART1_DSR_B I think is the one.
> 
> It's routed out to Apalis SoM pin 120, which is then connected via 22R
> resistor and through SN65C3243DBR RS-232 line driver to header which I use as
> debug/serial console.

Then I guess the problem is that the rs232-partner asserts the imx6's
DSR in reply to the imx6 asserting DTR?

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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WARNING: multiple messages have this Message-ID (diff)
From: u.kleine-koenig@pengutronix.de (Uwe Kleine-König)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 0/6] serial: imx: handshaking fixes and improvments
Date: Tue, 12 Apr 2016 19:30:32 +0200	[thread overview]
Message-ID: <20160412173032.GS10108@pengutronix.de> (raw)
In-Reply-To: <20160412121759.GG26941@ibawizard.net>

On Tue, Apr 12, 2016 at 02:17:59PM +0200, Petr ?tetiar wrote:
> Uwe Kleine-K?nig <u.kleine-koenig@pengutronix.de> [2016-04-12 12:58:56]:
> 
> > ok, so UFCR_DCEDTE is set and UCR3_DSR controls the DTR output as
> > intended. What is connected to the respective pin?
> > MX6QDL_PAD_EIM_D25__UART1_DSR_B I think is the one.
> 
> It's routed out to Apalis SoM pin 120, which is then connected via 22R
> resistor and through SN65C3243DBR RS-232 line driver to header which I use as
> debug/serial console.

Then I guess the problem is that the rs232-partner asserts the imx6's
DSR in reply to the imx6 asserting DTR?

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-K?nig            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

  reply	other threads:[~2016-04-12 17:30 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-24 13:24 [PATCH v2 0/6] serial: imx: handshaking fixes and improvments Uwe Kleine-König
2016-03-24 13:24 ` Uwe Kleine-König
2016-03-24 13:24 ` [PATCH v2 1/6] serial: imx: fix polarity of RI Uwe Kleine-König
2016-03-24 13:24   ` Uwe Kleine-König
2016-03-24 13:24 ` [PATCH v2 2/6] serial: imx: let irq handler return IRQ_NONE if no event was handled Uwe Kleine-König
2016-03-24 13:24   ` Uwe Kleine-König
2016-03-24 13:24 ` [PATCH v2 3/6] serial: imx: make sure unhandled irqs are disabled Uwe Kleine-König
2016-03-24 13:24   ` Uwe Kleine-König
2016-03-24 13:24 ` [PATCH v2 4/6] serial: imx: only count 0->1 transitions for RNG Uwe Kleine-König
2016-03-24 13:24   ` Uwe Kleine-König
2016-03-24 13:24 ` [PATCH v2 5/6] serial: imx: reorder functions to simplify next patch Uwe Kleine-König
2016-03-24 13:24   ` Uwe Kleine-König
2016-03-24 13:24 ` [PATCH v2 6/6] serial: imx: implement DSR irq handling for DTE mode Uwe Kleine-König
2016-03-24 13:24   ` Uwe Kleine-König
     [not found]   ` <1470350663.26773.41.camel@googlemail.com>
2016-08-05  6:58     ` serial: imx: regression triggered by newly introduced DSR irq handling Uwe Kleine-König
2016-08-05  6:58       ` Uwe Kleine-König
2016-08-05 12:03       ` Christoph Fritz
2016-08-05 12:03         ` Christoph Fritz
2016-08-10 20:54         ` Fabio Estevam
2016-08-10 20:54           ` Fabio Estevam
2016-08-13 20:35           ` Christoph Fritz
2016-08-13 20:35             ` Christoph Fritz
2016-08-15  5:22             ` Uwe Kleine-König
2016-08-15  5:22               ` Uwe Kleine-König
2016-08-17  9:25               ` [PATCH] ARM: dts: imx6sx: document SION necessity of ENET1_REF_CLK1 Christoph Fritz
2016-08-17  9:25                 ` Christoph Fritz
2016-08-17 14:26                 ` Fabio Estevam
2016-08-17 14:26                   ` Fabio Estevam
2016-08-17 18:03                   ` Christoph Fritz
2016-08-17 18:03                     ` Christoph Fritz
2016-08-22 15:08                 ` Christoph Fritz
2016-08-22 15:08                   ` Christoph Fritz
2016-08-29  1:18                 ` Shawn Guo
2016-08-29  1:18                   ` Shawn Guo
2016-11-21 11:00       ` serial: imx: regression triggered by newly introduced DSR irq handling Christoph Fritz
2016-11-21 11:00         ` Christoph Fritz
2016-11-21 11:07         ` Uwe Kleine-König
2016-11-21 11:07           ` Uwe Kleine-König
2016-04-11 16:01 ` [PATCH v2 0/6] serial: imx: handshaking fixes and improvments Petr Štetiar
2016-04-11 16:01   ` Petr Štetiar
2016-04-12  7:46   ` Uwe Kleine-König
2016-04-12  7:46     ` Uwe Kleine-König
2016-04-12  9:48     ` Petr Štetiar
2016-04-12  9:48       ` Petr Štetiar
2016-04-12 10:58       ` Uwe Kleine-König
2016-04-12 10:58         ` Uwe Kleine-König
2016-04-12 12:17         ` Petr Štetiar
2016-04-12 12:17           ` Petr Štetiar
2016-04-12 17:30           ` Uwe Kleine-König [this message]
2016-04-12 17:30             ` Uwe Kleine-König
2016-04-13  9:13             ` Petr Štetiar
2016-04-13  9:13               ` Petr Štetiar
2016-04-13 11:16               ` Uwe Kleine-König
2016-04-13 11:16                 ` Uwe Kleine-König

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