From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Subject: [PATCHv3 16/23] drm/bridge: tc358767: clean-up link training
Date: Fri, 3 May 2019 15:29:42 +0300
Message-ID: <20190503122949.12266-17-tomi.valkeinen@ti.com>
References: <20190503122949.12266-1-tomi.valkeinen@ti.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <dri-devel-bounces@lists.freedesktop.org>
Received: from fllv0016.ext.ti.com (fllv0016.ext.ti.com [198.47.19.142])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 484E889F27
 for <dri-devel@lists.freedesktop.org>; Fri,  3 May 2019 12:31:23 +0000 (UTC)
In-Reply-To: <20190503122949.12266-1-tomi.valkeinen@ti.com>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/dri-devel>,
 <mailto:dri-devel-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/dri-devel>
List-Post: <mailto:dri-devel@lists.freedesktop.org>
List-Help: <mailto:dri-devel-request@lists.freedesktop.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/dri-devel>,
 <mailto:dri-devel-request@lists.freedesktop.org?subject=subscribe>
Errors-To: dri-devel-bounces@lists.freedesktop.org
Sender: "dri-devel" <dri-devel-bounces@lists.freedesktop.org>
To: Andrzej Hajda <a.hajda@samsung.com>, Laurent Pinchart <Laurent.pinchart@ideasonboard.com>, Lucas Stach <l.stach@pengutronix.de>, Andrey Gusakov <andrey.gusakov@cogentembedded.com>, Philipp Zabel <p.zabel@pengutronix.de>, Andrey Smirnov <andrew.smirnov@gmail.com>, Peter Ujfalusi <peter.ujfalusi@ti.com>, Jyri Sarha <jsarha@ti.com>, Benoit Parrot <bparrot@ti.com>, dri-devel@lists.freedesktop.org
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
List-Id: dri-devel@lists.freedesktop.org

VGhlIGN1cnJlbnQgbGluayB0cmFpbmluZyBjb2RlIGRvZXMgdW5uZWNlc3NhcnkgcmV0cnktbG9v
cHMsIGFuZCBkb2VzCmV4dHJhIHdyaXRlcyB0byB0aGUgcmVnaXN0ZXJzLiBJdCBpcyBlYXNpZXIg
dG8gZm9sbG93IHRoZSBmbG93IGFuZAplbnN1cmUgaXQncyBzaW1pbGFyIHRvIFRvc2hpYmEncyBk
b2N1bWVudGF0aW9uIGlmIHdlIGRlYWwgd2l0aCBMVCBpbnNpZGUKdGNfbWFpbl9saW5rX2VuYWJs
ZSgpIGZ1bmN0aW9uLgoKVGhpcyBwYXRjaCBhZGRzIHRjX3dhaXRfbGlua190cmFpbmluZygpIHdo
aWNoIGhhbmRsZXMgd2FpdGluZyBmb3IgdGhlIExUCnBoYXNlIHRvIGZpbmlzaCwgYW5kIGRvZXMg
dGhlIG5lY2Vzc2FyeSBMVCByZWdpc3RlciBzZXR1cHMgaW4KdGNfbWFpbl9saW5rX2VuYWJsZSwg
d2l0aG91dCBleHRyYSBsb29wcy4KClNpZ25lZC1vZmYtYnk6IFRvbWkgVmFsa2VpbmVuIDx0b21p
LnZhbGtlaW5lbkB0aS5jb20+Ci0tLQogZHJpdmVycy9ncHUvZHJtL2JyaWRnZS90YzM1ODc2Ny5j
IHwgMTM2ICsrKysrKysrKysrKystLS0tLS0tLS0tLS0tLS0tLQogMSBmaWxlIGNoYW5nZWQsIDYw
IGluc2VydGlvbnMoKyksIDc2IGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1
L2RybS9icmlkZ2UvdGMzNTg3NjcuYyBiL2RyaXZlcnMvZ3B1L2RybS9icmlkZ2UvdGMzNTg3Njcu
YwppbmRleCAyY2VjMDY1MjBmY2YuLjg2MTc1ZThkMDFiMyAxMDA2NDQKLS0tIGEvZHJpdmVycy9n
cHUvZHJtL2JyaWRnZS90YzM1ODc2Ny5jCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9icmlkZ2UvdGMz
NTg3NjcuYwpAQCAtNzQwLDg0ICs3NDAsMjQgQEAgc3RhdGljIGludCB0Y19zZXRfdmlkZW9fbW9k
ZShzdHJ1Y3QgdGNfZGF0YSAqdGMsCiAJcmV0dXJuIHJldDsKIH0KIAotc3RhdGljIGludCB0Y19s
aW5rX3RyYWluaW5nKHN0cnVjdCB0Y19kYXRhICp0YywgaW50IHBhdHRlcm4pCitzdGF0aWMgaW50
IHRjX3dhaXRfbGlua190cmFpbmluZyhzdHJ1Y3QgdGNfZGF0YSAqdGMpCiB7Ci0JY29uc3QgY2hh
ciAqIGNvbnN0ICplcnJvcnM7Ci0JdTMyIHNyY2N0cmwgPSB0Y19zcmNjdHJsKHRjKSB8IERQMF9T
UkNDVFJMX1NDUk1CTERJUyB8Ci0JCSAgICAgIERQMF9TUkNDVFJMX0FVVE9DT1JSRUNUOwotCWlu
dCB0aW1lb3V0OwotCWludCByZXRyeTsKKwl1MzIgdGltZW91dCA9IDEwMDA7CiAJdTMyIHZhbHVl
OwogCWludCByZXQ7CiAKLQlpZiAocGF0dGVybiA9PSBEUF9UUkFJTklOR19QQVRURVJOXzEpIHsK
LQkJc3JjY3RybCB8PSBEUDBfU1JDQ1RSTF9UUDE7Ci0JCWVycm9ycyA9IHRyYWluaW5nX3BhdHRl
cm4xX2Vycm9yczsKLQl9IGVsc2UgewotCQlzcmNjdHJsIHw9IERQMF9TUkNDVFJMX1RQMjsKLQkJ
ZXJyb3JzID0gdHJhaW5pbmdfcGF0dGVybjJfZXJyb3JzOwotCX0KLQotCS8qIFNldCBEUENEIDB4
MTAyIGZvciBUcmFpbmluZyBQYXJ0IDEgb3IgMiAqLwotCXRjX3dyaXRlKERQMF9TTktMVENUUkws
IERQX0xJTktfU0NSQU1CTElOR19ESVNBQkxFIHwgcGF0dGVybik7Ci0KLQl0Y193cml0ZShEUDBf
TFRMT09QQ1RSTCwKLQkJICgweDBmIDw8IDI4KSB8CS8qIERlZmVyIEl0ZXJhdGlvbiBDb3VudCAq
LwotCQkgKDB4MGYgPDwgMjQpIHwJLyogTG9vcCBJdGVyYXRpb24gQ291bnQgKi8KLQkJICgweDBk
IDw8IDApKTsJLyogTG9vcCBUaW1lciBEZWxheSAqLwotCi0JcmV0cnkgPSA1OwogCWRvIHsKLQkJ
LyogU2V0IERQMCBUcmFpbmluZyBQYXR0ZXJuICovCi0JCXRjX3dyaXRlKERQMF9TUkNDVFJMLCBz
cmNjdHJsKTsKLQotCQkvKiBFbmFibGUgRFAwIHRvIHN0YXJ0IExpbmsgVHJhaW5pbmcgKi8KLQkJ
dGNfd3JpdGUoRFAwQ1RMLCBEUF9FTik7Ci0KLQkJLyogd2FpdCAqLwotCQl0aW1lb3V0ID0gMTAw
MDsKLQkJZG8gewotCQkJdGNfcmVhZChEUDBfTFRTVEFULCAmdmFsdWUpOwotCQkJdWRlbGF5KDEp
OwotCQl9IHdoaWxlICgoISh2YWx1ZSAmIExUX0xPT1BET05FKSkgJiYgKC0tdGltZW91dCkpOwot
CQlpZiAodGltZW91dCA9PSAwKSB7Ci0JCQlkZXZfZXJyKHRjLT5kZXYsICJMaW5rIHRyYWluaW5n
IHRpbWVvdXQhXG4iKTsKLQkJfSBlbHNlIHsKLQkJCWludCBwYXR0ZXJuID0gKHZhbHVlID4+IDEx
KSAmIDB4MzsKLQkJCWludCBlcnJvciA9ICh2YWx1ZSA+PiA4KSAmIDB4NzsKLQotCQkJZGV2X2Ri
Zyh0Yy0+ZGV2LAotCQkJCSJMaW5rIHRyYWluaW5nIHBoYXNlICVkIGRvbmUgYWZ0ZXIgJWQgdVM6
ICVzXG4iLAotCQkJCXBhdHRlcm4sIDEwMDAgLSB0aW1lb3V0LCBlcnJvcnNbZXJyb3JdKTsKLQkJ
CWlmIChwYXR0ZXJuID09IERQX1RSQUlOSU5HX1BBVFRFUk5fMSAmJiBlcnJvciA9PSAwKQotCQkJ
CWJyZWFrOwotCQkJaWYgKHBhdHRlcm4gPT0gRFBfVFJBSU5JTkdfUEFUVEVSTl8yKSB7Ci0JCQkJ
dmFsdWUgJj0gTFRfQ0hBTk5FTDFfRVFfQklUUyB8Ci0JCQkJCSBMVF9JTlRFUkxBTkVfQUxJR05f
RE9ORSB8Ci0JCQkJCSBMVF9DSEFOTkVMMF9FUV9CSVRTOwotCQkJCS8qIGluIGNhc2Ugb2YgdHdv
IGxhbmVzICovCi0JCQkJaWYgKCh0Yy0+bGluay5iYXNlLm51bV9sYW5lcyA9PSAyKSAmJgotCQkJ
CSAgICAodmFsdWUgPT0gKExUX0NIQU5ORUwxX0VRX0JJVFMgfAotCQkJCQkgICAgICAgTFRfSU5U
RVJMQU5FX0FMSUdOX0RPTkUgfAotCQkJCQkgICAgICAgTFRfQ0hBTk5FTDBfRVFfQklUUykpKQot
CQkJCQlicmVhazsKLQkJCQkvKiBpbiBjYXNlIG9mIG9uZSBsaW5lICovCi0JCQkJaWYgKCh0Yy0+
bGluay5iYXNlLm51bV9sYW5lcyA9PSAxKSAmJgotCQkJCSAgICAodmFsdWUgPT0gKExUX0lOVEVS
TEFORV9BTElHTl9ET05FIHwKLQkJCQkJICAgICAgIExUX0NIQU5ORUwwX0VRX0JJVFMpKSkKLQkJ
CQkJYnJlYWs7Ci0JCQl9Ci0JCX0KLQkJLyogcmVzdGFydCAqLwotCQl0Y193cml0ZShEUDBDVEws
IDApOwotCQl1c2xlZXBfcmFuZ2UoMTAsIDIwKTsKLQl9IHdoaWxlICgtLXJldHJ5KTsKLQlpZiAo
cmV0cnkgPT0gMCkgewotCQlkZXZfZXJyKHRjLT5kZXYsICJGYWlsZWQgdG8gZmluaXNoIHRyYWlu
aW5nIHBoYXNlICVkXG4iLAotCQkJcGF0dGVybik7CisJCXVkZWxheSgxKTsKKwkJdGNfcmVhZChE
UDBfTFRTVEFULCAmdmFsdWUpOworCX0gd2hpbGUgKCghKHZhbHVlICYgTFRfTE9PUERPTkUpKSAm
JiAoLS10aW1lb3V0KSk7CisKKwlpZiAodGltZW91dCA9PSAwKSB7CisJCWRldl9lcnIodGMtPmRl
diwgIkxpbmsgdHJhaW5pbmcgdGltZW91dCB3YWl0aW5nIGZvciBMVF9MT09QRE9ORSFcbiIpOwor
CQlyZXR1cm4gLUVUSU1FRE9VVDsKIAl9CiAKLQlyZXR1cm4gMDsKKwlyZXR1cm4gKHZhbHVlID4+
IDgpICYgMHg3OworCiBlcnI6CiAJcmV0dXJuIHJldDsKIH0KQEAgLTkyNyw3ICs4NjcsNyBAQCBz
dGF0aWMgaW50IHRjX21haW5fbGlua19lbmFibGUoc3RydWN0IHRjX2RhdGEgKnRjKQogCiAJCWlm
ICh0bXBbMF0gIT0gdGMtPmFzc3IpIHsKIAkJCWRldl9kYmcoZGV2LCAiRmFpbGVkIHRvIHN3aXRj
aCBkaXNwbGF5IEFTU1IgdG8gJWQsIGZhbGxpbmcgYmFjayB0byB1bnNjcmFtYmxlZCBtb2RlXG4i
LAotCQkJCSB0Yy0+YXNzcik7CisJCQkJdGMtPmFzc3IpOwogCQkJLyogdHJ5aW5nIHdpdGggZGlz
YWJsZWQgc2NyYW1ibGVyICovCiAJCQl0Yy0+bGluay5zY3JhbWJsZXJfZGlzID0gdHJ1ZTsKIAkJ
fQpAQCAtOTUzLDEzICs4OTMsNTcgQEAgc3RhdGljIGludCB0Y19tYWluX2xpbmtfZW5hYmxlKHN0
cnVjdCB0Y19kYXRhICp0YykKIAlpZiAocmV0IDwgMCkKIAkJZ290byBlcnJfZHBjZF93cml0ZTsK
IAotCXJldCA9IHRjX2xpbmtfdHJhaW5pbmcodGMsIERQX1RSQUlOSU5HX1BBVFRFUk5fMSk7Ci0J
aWYgKHJldCkKKwkvKiBDbG9jay1SZWNvdmVyeSAqLworCisJLyogU2V0IERQQ0QgMHgxMDIgZm9y
IFRyYWluaW5nIFBhdHRlcm4gMSAqLworCXRjX3dyaXRlKERQMF9TTktMVENUUkwsIERQX0xJTktf
U0NSQU1CTElOR19ESVNBQkxFIHwKKwkJIERQX1RSQUlOSU5HX1BBVFRFUk5fMSk7CisKKwl0Y193
cml0ZShEUDBfTFRMT09QQ1RSTCwKKwkJICgxNSA8PCAyOCkgfAkvKiBEZWZlciBJdGVyYXRpb24g
Q291bnQgKi8KKwkJICgxNSA8PCAyNCkgfAkvKiBMb29wIEl0ZXJhdGlvbiBDb3VudCAqLworCQkg
KDB4ZCA8PCAwKSk7CS8qIExvb3AgVGltZXIgRGVsYXkgKi8KKworCXRjX3dyaXRlKERQMF9TUkND
VFJMLCB0Y19zcmNjdHJsKHRjKSB8IERQMF9TUkNDVFJMX1NDUk1CTERJUyB8CisJCSBEUDBfU1JD
Q1RSTF9BVVRPQ09SUkVDVCB8IERQMF9TUkNDVFJMX1RQMSk7CisKKwkvKiBFbmFibGUgRFAwIHRv
IHN0YXJ0IExpbmsgVHJhaW5pbmcgKi8KKwl0Y193cml0ZShEUDBDVEwsCisJCSAoKHRjLT5saW5r
LmJhc2UuY2FwYWJpbGl0aWVzICYgRFBfTElOS19DQVBfRU5IQU5DRURfRlJBTUlORykgPyBFRl9F
TiA6IDApIHwKKwkJIERQX0VOKTsKKworCS8qIHdhaXQgKi8KKwlyZXQgPSB0Y193YWl0X2xpbmtf
dHJhaW5pbmcodGMpOworCWlmIChyZXQgPCAwKQogCQlnb3RvIGVycjsKIAotCXJldCA9IHRjX2xp
bmtfdHJhaW5pbmcodGMsIERQX1RSQUlOSU5HX1BBVFRFUk5fMik7Ci0JaWYgKHJldCkKKwlpZiAo
cmV0KSB7CisJCWRldl9lcnIodGMtPmRldiwgIkxpbmsgdHJhaW5pbmcgcGhhc2UgMSBmYWlsZWQ6
ICVzXG4iLAorCQkJdHJhaW5pbmdfcGF0dGVybjFfZXJyb3JzW3JldF0pOworCQlyZXQgPSAtRU5P
REVWOwogCQlnb3RvIGVycjsKKwl9CisKKwkvKiBDaGFubmVsIEVxdWFsaXphdGlvbiAqLworCisJ
LyogU2V0IERQQ0QgMHgxMDIgZm9yIFRyYWluaW5nIFBhdHRlcm4gMiAqLworCXRjX3dyaXRlKERQ
MF9TTktMVENUUkwsIERQX0xJTktfU0NSQU1CTElOR19ESVNBQkxFIHwKKwkJIERQX1RSQUlOSU5H
X1BBVFRFUk5fMik7CisKKwl0Y193cml0ZShEUDBfU1JDQ1RSTCwgdGNfc3JjY3RybCh0YykgfCBE
UDBfU1JDQ1RSTF9TQ1JNQkxESVMgfAorCQkgRFAwX1NSQ0NUUkxfQVVUT0NPUlJFQ1QgfCBEUDBf
U1JDQ1RSTF9UUDIpOworCisJLyogd2FpdCAqLworCXJldCA9IHRjX3dhaXRfbGlua190cmFpbmlu
Zyh0Yyk7CisJaWYgKHJldCA8IDApCisJCWdvdG8gZXJyOworCisJaWYgKHJldCkgeworCQlkZXZf
ZXJyKHRjLT5kZXYsICJMaW5rIHRyYWluaW5nIHBoYXNlIDIgZmFpbGVkOiAlc1xuIiwKKwkJCXRy
YWluaW5nX3BhdHRlcm4yX2Vycm9yc1tyZXRdKTsKKwkJcmV0ID0gLUVOT0RFVjsKKwkJZ290byBl
cnI7CisJfQogCiAJLyoKIAkgKiBUb3NoaWJhJ3MgZG9jdW1lbnRhdGlvbiBzdWdnZXN0cyB0byBm
aXJzdCBjbGVhciBEUENEIDB4MTAyLCB0aGVuCi0tIApUZXhhcyBJbnN0cnVtZW50cyBGaW5sYW5k
IE95LCBQb3Jra2FsYW5rYXR1IDIyLCAwMDE4MCBIZWxzaW5raS4KWS10dW5udXMvQnVzaW5lc3Mg
SUQ6IDA2MTU1MjEtNC4gS290aXBhaWtrYS9Eb21pY2lsZTogSGVsc2lua2kKCl9fX19fX19fX19f
X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxp
c3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNr
dG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbA==