From mboxrd@z Thu Jan 1 00:00:00 1970 From: Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= Subject: Re: [PATCH v2 0/6] serial: imx: handshaking fixes and improvments Date: Wed, 13 Apr 2016 13:16:46 +0200 Message-ID: <20160413111646.GC10108@pengutronix.de> References: <1458825865-7434-1-git-send-email-u.kleine-koenig@pengutronix.de> <20160411160128.GD26941@ibawizard.net> <20160412074622.GQ10108@pengutronix.de> <20160412094846.GF26941@ibawizard.net> <20160412105856.GR10108@pengutronix.de> <20160412121759.GG26941@ibawizard.net> <20160412173032.GS10108@pengutronix.de> <20160413091336.GH26941@ibawizard.net> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <20160413091336.GH26941@ibawizard.net> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Petr =?utf-8?Q?=C5=A0tetiar?= , Greg Kroah-Hartman Cc: Martin Fuzzey , Baruch Siach , kernel@pengutronix.de, linux-arm-kernel@lists.infradead.org, linux-serial@vger.kernel.org List-Id: linux-serial@vger.kernel.org T24gV2VkLCBBcHIgMTMsIDIwMTYgYXQgMTE6MTM6MzZBTSArMDIwMCwgUGV0ciDFoHRldGlhciB3 cm90ZToKPiBVd2UgS2xlaW5lLUvDtm5pZyA8dS5rbGVpbmUta29lbmlnQHBlbmd1dHJvbml4LmRl PiBbMjAxNi0wNC0xMiAxOTozMDozMl06Cj4gCj4gPiBPbiBUdWUsIEFwciAxMiwgMjAxNiBhdCAw MjoxNzo1OVBNICswMjAwLCBQZXRyIMWgdGV0aWFyIHdyb3RlOgo+ID4gPiBVd2UgS2xlaW5lLUvD tm5pZyA8dS5rbGVpbmUta29lbmlnQHBlbmd1dHJvbml4LmRlPiBbMjAxNi0wNC0xMiAxMjo1ODo1 Nl06Cj4gPiA+IAo+ID4gPiA+IG9rLCBzbyBVRkNSX0RDRURURSBpcyBzZXQgYW5kIFVDUjNfRFNS IGNvbnRyb2xzIHRoZSBEVFIgb3V0cHV0IGFzCj4gPiA+ID4gaW50ZW5kZWQuIFdoYXQgaXMgY29u bmVjdGVkIHRvIHRoZSByZXNwZWN0aXZlIHBpbj8KPiA+ID4gPiBNWDZRRExfUEFEX0VJTV9EMjVf X1VBUlQxX0RTUl9CIEkgdGhpbmsgaXMgdGhlIG9uZS4KPiA+ID4gCj4gPiA+IEl0J3Mgcm91dGVk IG91dCB0byBBcGFsaXMgU29NIHBpbiAxMjAsIHdoaWNoIGlzIHRoZW4gY29ubmVjdGVkIHZpYSAy MlIKPiA+ID4gcmVzaXN0b3IgYW5kIHRocm91Z2ggU042NUMzMjQzREJSIFJTLTIzMiBsaW5lIGRy aXZlciB0byBoZWFkZXIgd2hpY2ggSSB1c2UgYXMKPiA+ID4gZGVidWcvc2VyaWFsIGNvbnNvbGUu Cj4gPiAKPiA+IFRoZW4gSSBndWVzcyB0aGUgcHJvYmxlbSBpcyB0aGF0IHRoZSByczIzMi1wYXJ0 bmVyIGFzc2VydHMgdGhlIGlteDYncwo+ID4gRFNSIGluIHJlcGx5IHRvIHRoZSBpbXg2IGFzc2Vy dGluZyBEVFI/Cj4gCj4gWWVzLCB0aGF0J3MgY29ycmVjdC4KCk9LLCB0aGF0IGZpdHMgbmljZWx5 IGluIG15IHBpY3R1cmUuIFNvIHdlIG9ubHkgaGF2ZSB0byB3YWl0IHVudGlsIEdyZWcKaGFwcGls eSBwaWNrcyB1cCB0aGUgZml4ZXMgKGkuZS4gcGF0Y2hlcyAxIHVwIHRvIDQpLgoKQmVzdCByZWdh cmRzClV3ZQoKLS0gClBlbmd1dHJvbml4IGUuSy4gICAgICAgICAgICAgICAgICAgICAgICAgICB8 IFV3ZSBLbGVpbmUtS8O2bmlnICAgICAgICAgICAgfApJbmR1c3RyaWFsIExpbnV4IFNvbHV0aW9u cyAgICAgICAgICAgICAgICAgfCBodHRwOi8vd3d3LnBlbmd1dHJvbml4LmRlLyAgfAoKX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtlcm5l bCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6 Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5lbAo= From mboxrd@z Thu Jan 1 00:00:00 1970 From: u.kleine-koenig@pengutronix.de (Uwe =?iso-8859-1?Q?Kleine-K=F6nig?=) Date: Wed, 13 Apr 2016 13:16:46 +0200 Subject: [PATCH v2 0/6] serial: imx: handshaking fixes and improvments In-Reply-To: <20160413091336.GH26941@ibawizard.net> References: <1458825865-7434-1-git-send-email-u.kleine-koenig@pengutronix.de> <20160411160128.GD26941@ibawizard.net> <20160412074622.GQ10108@pengutronix.de> <20160412094846.GF26941@ibawizard.net> <20160412105856.GR10108@pengutronix.de> <20160412121759.GG26941@ibawizard.net> <20160412173032.GS10108@pengutronix.de> <20160413091336.GH26941@ibawizard.net> Message-ID: <20160413111646.GC10108@pengutronix.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, Apr 13, 2016 at 11:13:36AM +0200, Petr ?tetiar wrote: > Uwe Kleine-K?nig [2016-04-12 19:30:32]: > > > On Tue, Apr 12, 2016 at 02:17:59PM +0200, Petr ?tetiar wrote: > > > Uwe Kleine-K?nig [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? > > Yes, that's correct. OK, that fits nicely in my picture. So we only have to wait until Greg happily picks up the fixes (i.e. patches 1 up to 4). Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-K?nig | Industrial Linux Solutions | http://www.pengutronix.de/ |