From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sergey Organov Subject: Re: [PATCH v2 6/7] serial: imx: set_mctrl(): correctly restore autoRTS state Date: Thu, 27 Jun 2019 10:01:54 +0300 Message-ID: <87imsrik9p.fsf@osv.gnss.ru> References: <20190614072801.3187-1-s.hauer@pengutronix.de> <1561558293-7683-1-git-send-email-sorganov@gmail.com> <1561558293-7683-7-git-send-email-sorganov@gmail.com> <20190627060537.brmgsmoh3usr4vo6@pengutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20190627060537.brmgsmoh3usr4vo6@pengutronix.de> ("Uwe \=\?utf-8\?Q\?Kleine-K\=C3\=B6nig\=22's\?\= message of "Thu, 27 Jun 2019 08:05:37 +0200") 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: Uwe =?utf-8?Q?Kleine-K=C3=B6nig?= Cc: Pengutronix Kernel Team , Sascha Hauer , linux-arm-kernel@lists.infradead.org, linux-serial@vger.kernel.org, NXP Linux Team List-Id: linux-serial@vger.kernel.org VXdlIEtsZWluZS1Lw7ZuaWcgPHUua2xlaW5lLWtvZW5pZ0BwZW5ndXRyb25peC5kZT4gd3JpdGVz OgoKPiBPbiBXZWQsIEp1biAyNiwgMjAxOSBhdCAwNToxMTozMlBNICswMzAwLCBTZXJnZXkgT3Jn YW5vdiB3cm90ZToKPj4gaW14X3VhcnRfc2V0X21jdHJsKCkgaGFwcGVuZWQgdG8gc2V0IFVDUjJf Q1RTQyBiaXQgd2hlbmV2ZXIgVElPQ01fUlRTCj4+IHdhcyBzZXQsIG5vIG1hdHRlciBpZiBSVFMv Q1RTIGhhbmRzaGFrZSBpcyBlbmFibGVkIG9yIG5vdC4gTm93IGZpeGVkIGJ5Cj4+IHR1cm5pbmcg aGFuZHNoYWtlIG9uIG9ubHkgd2hlbiBDUlRTQ1RTIGJpdCBmb3IgdGhlIHBvcnQgaXMgc2V0Lgo+ PiAKPj4gUmV2aWV3ZWQtYnk6IFNhc2NoYSBIYXVlciA8cy5oYXVlckBwZW5ndXRyb25peC5kZT4K Pj4gVGVzdGVkLWJ5OiBTYXNjaGEgSGF1ZXIgPHMuaGF1ZXJAcGVuZ3V0cm9uaXguZGU+Cj4+IFNp Z25lZC1vZmYtYnk6IFNlcmdleSBPcmdhbm92IDxzb3JnYW5vdkBnbWFpbC5jb20+Cj4+IC0tLQo+ PiAgZHJpdmVycy90dHkvc2VyaWFsL2lteC5jIHwgMTMgKysrKysrKysrKystLQo+PiAgMSBmaWxl IGNoYW5nZWQsIDExIGluc2VydGlvbnMoKyksIDIgZGVsZXRpb25zKC0pCj4+IAo+PiBkaWZmIC0t Z2l0IGEvZHJpdmVycy90dHkvc2VyaWFsL2lteC5jIGIvZHJpdmVycy90dHkvc2VyaWFsL2lteC5j Cj4+IGluZGV4IDQ4NjdmODAuLjE3MTM0N2QgMTAwNjQ0Cj4+IC0tLSBhL2RyaXZlcnMvdHR5L3Nl cmlhbC9pbXguYwo+PiArKysgYi9kcml2ZXJzL3R0eS9zZXJpYWwvaW14LmMKPj4gQEAgLTk3MCwx MCArOTcwLDE5IEBAIHN0YXRpYyB2b2lkIGlteF91YXJ0X3NldF9tY3RybChzdHJ1Y3QgdWFydF9w b3J0ICpwb3J0LCB1bnNpZ25lZCBpbnQgbWN0cmwpCj4+ICAJaWYgKCEocG9ydC0+cnM0ODUuZmxh Z3MgJiBTRVJfUlM0ODVfRU5BQkxFRCkpIHsKPj4gIAkJdTMyIHVjcjI7Cj4+ICAKPj4gKwkJLyoK Pj4gKwkJICogVHVybiBvZmYgYXV0b1JUUyAoVUNSMl9DVFNDKSBpZiBSVFMgaXMgbG93ZXJlZCBh bmQgcmVzdG9yZQo+PiArCQkgKiBhdXRvUlRTIHNldHRpbmcgaWYgUlRTIGlzIHJhaXNlZC4gSW52 ZXJ0ZWQgVUNSMl9JUlRTIGlzIHNldAo+PiArCQkgKiBpZiBhbmQgb25seSBpZiBDUlRTQ1RTIGJp dCBpcyBzZXQgZm9yIHRoZSBwb3J0LCBzbyB3ZSB1c2UgaXQKPj4gKwkJICogdG8gZ2V0IHRoZSBz dGF0ZSB0byByZXN0b3JlIHRvLgo+PiArCQkgKi8KPgo+IFRoZSBjb21tZW50IGlzIHF1aXRlIGNv bXBsaWNhdGVkLiBJIGxpa2UgdGhlIGNvbW1lbnRzIG9mIFNhc2NoYSdzIHBhdGNoCj4gdGhhdCBh ZGRyZXNzZWQgdGhlIHNhbWUgaXNzdWUgYmV0dGVyLgoKVGhpcyBvbmUgaXMgc2ltcGx5IG1vZGVs ZWQgYWZ0ZXIgc2ltaWxhciBjb21tZW50cyBpbiBvdGhlciBkcml2ZXJzLAp0aGVuIGFkZGluZyB0 aGUgc3BlY2lmaWNzLgoKPiBBcmUgeW91IHVzaW5nIFVDUjJfSVJUUyBhcyBhbiBpbmRpY2F0b3Ig aWYgQ1JUU0NUUyBpcyBzZXQ/IElmIGl0J3MgdGhhdAo+IHdoYXQgeW91IGludGVuZCB0byBleHBy ZXNzIGluIHRoZSBzZWNvbmQgc2VudGVuY2UgdGhhdCBpcyBoYXJkIHRvIGdyYXNwLgo+IFNvbWV0 aGluZyBsaWtlOgo+Cj4gCVVDUjJfSVJUUyBpcyB1bnNldCBpZmYgdGhlIHBvcnQgaXMgY29uZmln dXJlZCBmb3IgQ1JUU0NUUwoKWWVhaCwgZXhhY3RseS4gRmluZSwgSSdsbCBjaGFuZ2UgdGhpcywg dGhhbmtzIQoKPgo+IEFsc28gYXMgdGhlIHZhbHVlIG9mIHRoZSBDVFMgYml0IGRvZXNuJ3QgbWF0 dGVyIGlmIENUU0MgaXMgc2V0LCB0aGUKPiBvcmRlciBvZiB0aGUgY2hlY2tzIGNvdWxkIGJlIHN3 YXBwZWQgdG8gcmVzdWx0IGluIGVhc2llciBjb2RlIChJTUhPIGF0Cj4gbGVhc3QpIHRoYXQgZG9l c24ndCBuZWVkIGEgbmVzdGVkIGlmLgo+Cj4gU29tZXRoaW5nIGxpa2U6Cj4KPiAJdWNyMiA9IGlt eF91YXJ0X3JlYWRsKHNwb3J0LCBVQ1IyKTsKPiAJdWNyMiAmPSB+KFVDUjJfQ1RTIHwgVUNSMl9D VFNDKTsKPgo+IAkvKiBVQ1IyX0lSVFMgaXMgdW5zZXQgaWZmIHRoZSBwb3J0IGlzIGNvbmZpZ3Vy ZWQgZm9yIENSVFNDVFMgKi8KPiAJY3J0c2N0cyA9ICEodWNyMiAmIFVDUjJfSVJUUyk7Cj4KPiAJ aWYgKCEobWN0cmwgJiBUSU9DTV9SVFMpKSB7Cj4gCQkvKiBGb3JjZSBSVFMgaW5hY3RpdmUsIGku ZS4gVUNSMl9DVFM9MCBhbmQgVUNSMl9DVFNDPTAgKi8KPiAJfSBlbHNlIGlmIChjcnRzY3RzKSB7 Cj4gCQkvKiBsZXQgdGhlIHJlY2VpdmVyIGNvbnRyb2wgUlRTICovCj4gCQl1Y3IyIHw9IFVDUjJf Q1RTQzsKPiAJfSBlbHNlIHsKPiAJCS8qIEZvcmNlIFJUUyBhY3RpdmUgKi8KPiAJCXVjcjIgfD0g VUNSMl9DVFM7Cj4gCX0KClJpZ2h0LCB0aGlzIGlzIGZ1bmN0aW9uYWxseSBjb3JyZWN0IGFzIHdl bGwsIGFuZCB0aHVzIGl0J3MgYSBtYXR0ZXIgb2YKdGFzdGUsIGJ1dCBJIHN0aWxsIGJlbGlldmUg dGhhdCB3aGF0IEkgc3VnZ2VzdGVkIGlzIGJldHRlcjoKCgl1Y3IyID0gaW14X3VhcnRfcmVhZGwo c3BvcnQsIFVDUjIpOwoJdWNyMiAmPSB+KFVDUjJfQ1RTIHwgVUNSMl9DVFNDKTsKCWlmIChtY3Ry bCAmIFRJT0NNX1JUUykgewoJCXVjcjIgfD0gVUNSMl9DVFM7CgkJaWYgKCEodWNyMiAmIFVDUjJf SVJUUykpCgkJCXVjcjIgfD0gVUNSMl9DVFNDOwoJfQoKRmlyc3QsIGl0IGFsd2F5cyBzZXRzIGhh cmR3YXJlIFJUUyBhY2NvcmRpbmcgdG8gVElPQ01fUlRTLCB0aGF0IElNSE8gaXMKbGVzcyBzdXJw cmlzaW5nIHRoYW4gY2xlYXJpbmcgaGFyZHdhcmUgUlRTIGJpdCB3aGVuIHBvcnQgaXMgY29uZmln dXJlZApDUlRTQ1RTLgoKU2Vjb25kLCAodW5mb3J0dW5hdGUpIGludGVyLWRlcGVuZGVuY3kgYmV0 d2VlbiBUSU9DTV9SVFMgYW5kIENSVFNDVFMgaXMKYmV0dGVyIGlzb2xhdGVkLCBzbyB0byBnZXQg cmlkIG9mIGl0IChldmVuIGlmIG9ubHkgbWVudGFsbHkpLCBvbmx5CnJlbW92YWxzIGFyZSByZXF1 aXJlZCwgdGhhdCByZWR1Y2VzIHRoZSBjb2RlIHRvIHF1aXRlIG9idmlvdXM6CgoJdWNyMiA9IGlt eF91YXJ0X3JlYWRsKHNwb3J0LCBVQ1IyKTsKCXVjcjIgJj0gfihVQ1IyX0NUUyk7CglpZiAobWN0 cmwgJiBUSU9DTV9SVFMpCgkJdWNyMiB8PSBVQ1IyX0NUUzsKClRoYW5rcyEKCi0tIFNlcmdleQoK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJt LWtlcm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3Jn Cmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtl cm5lbAo=