From mboxrd@z Thu Jan 1 00:00:00 1970 From: Manasi Navare Subject: Re: [PATCH] drm/i915/dp: Fix the channel equalization failure condition during Link Training Date: Fri, 15 Sep 2017 11:48:42 -0700 Message-ID: <20170915184841.GC10820@intel.com> References: <1503025384-7379-1-git-send-email-manasi.d.navare@intel.com> <20170824123327.GK4914@intel.com> <20170824171542.GA831@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7A7D46ECC0 for ; Fri, 15 Sep 2017 18:45:06 +0000 (UTC) Content-Disposition: inline In-Reply-To: <20170824171542.GA831@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gVGh1LCBBdWcgMjQsIDIwMTcgYXQgMTA6MTU6NDJBTSAtMDcwMCwgTWFuYXNpIE5hdmFyZSB3 cm90ZToKPiBPbiBUaHUsIEF1ZyAyNCwgMjAxNyBhdCAwMzozMzoyN1BNICswMzAwLCBWaWxsZSBT eXJqw6Rsw6Qgd3JvdGU6Cj4gPiBPbiBUaHUsIEF1ZyAxNywgMjAxNyBhdCAwODowMzowNFBNIC0w NzAwLCBNYW5hc2kgTmF2YXJlIHdyb3RlOgo+ID4gPiBJbiB0aGUgY2hhbm5lbCBFUSByZXRyeSBs b29wLCB3ZSBicmVhayBmcm9tIHRoZSBsb29wIGluIGNhc2UKPiA+ID4gb2YgZmFpbHVyZSB0byBn ZXQgbGluayBzdGF0dXMgb3IgZmFpbHVyZSBpbiBjbG9jayByZWNvdmVyeSBvcgo+ID4gPiBmYWls dXJlIHRvIHVwZGF0ZSBsaW5rIHRyYWluaW5nLiBJbiB0aGVzZSBjYXNlcyBjaGFubmVsX2VxX3N0 YXR1cwo+ID4gPiBpcyBzdGlsbCBmYWxzZSBldmVuIHRob3VnaCB0aGUgcmV0cnkgbG9vcCBoYXMg bm90IHJlYWNoZWQgbWF4IHJldHJpZXMuCj4gPiA+IFNvIHdlIG5lZWQgdG8gY29uc2lkZXIgdGhp cyBhcyBhIGZhaWx1cmUgY29uZGl0aW9uLgo+ID4gCj4gPiBUaGlzIGp1c3QgcHJpbnRzIGEgZGVi dWcgbWVzc2FnZSwgYW5kIGVhY2ggYnJlYWsgaW4gdGhlIGxvb3AgYWxzbwo+ID4gcHJpbnRzIHNv bWUga2luZCBvZiBkZWJ1Zy9lcnJvciBtZXNzYWdlLiBTbyB0byBtZSB0aGlzIGp1c3Qgc2VlbXMg dG8KPiA+IG1ha2UgaXQgaGFyZGVyIHRvIHNlZSB3aHkgdGhpbmdzIGZhaWxlZCBiZWNhdXNlIHdl IG5vdyBwb2ludCB0aGUgZmluZ2VyCj4gPiBhdCBjaGFubmVsIEVRIGV2ZW4gd2hlbiB0aGUgYWN0 dWFsIGVycm9yIHdhcyBzb21ldGhpbmcgZWxzZS4KPiA+Cj4gCj4gVGhhbmtzIGZvciB5b3VyIGZl ZWRiYWNrLgo+IFRoZSBpZGVhIGlzIHRvIGhhdmUgb25lIGNvbW1vbiBwbGFjZSBmb3IgZmFpbHVy ZSBzbyB0aGF0Cj4gZmFpbHVyZSBoYW5kbGluZyBsaWtlIGluIGNhc2Ugb2YgUFNSIGNhbiBiZSBk b25lIG9ubHkKPiBpbiB0aGF0IG9uZSBwbGFjZS4KPiBUaGUgZGVidWcgcHJpbnRzIGZvciBlYWNo IGZhaWx1cmUgY2FzZSB3b3VsZCBzdGlsbCBnaXZlIHRoZQo+IGV4YWN0IHJlYXNvbiBmb3IgZmFp bHVyZSBmb2xsb3dlZCBieSB0aGUgZW5kIHJlc3VsdCBkZWJ1ZyBwcmludAo+IHNheWluZyB0aGF0 ICJDaGFubmVsIEVRIGZhaWxlZCIgc2luY2UgYW55IG9mIHRob3NlIGZhaWx1cmVzIHdpbGwKPiBy ZXN1bHQgaW4gQ2ggRVEgZmFpbC4KPiAKPiBNYW5hc2kKPgoKVmlsbGUsIHdlIHdvdWxkIG5lZWQg dGhpcyBjb21tb24gZXhpdCBwb2ludCBmb3IgdGhlIENoYW5uZWwgRVEgZmFpbHVyZXMKZXNwZWNp YWxseSBpbiBjYXNlIHdoZXJlIHdlIHNldCB0aGUgdHJhaW5fc2V0X3ZhbGlkIHRvIGZhbHNlIGlu IGNhc2Ugb2YKYW55IENoYW5uZWwgRVEgZmFpbHVyZXMgbGlrZSBpbiB0aGUgcGF0Y2g6CiJkcm0v aTkxNS9lZHA6IEJlIGxlc3MgYWdncmVzc2l2ZSBhYm91dCBjaGFuZ2luZyBsaW5rIGNvbmZpZyBv biBlRFAiClNvIHdlIG5lZWQgdG8gbW92ZSBhbGwgdGhlIGZhaWx1cmUgaGFuZGxpbmcgdG8gdGhl IGNvbW1vbiBwbGFjZSBsaWtlIEkgZG8KaGVyZSBpbiB0aGlzIHBhdGNoIGlmICh0cmllcyA9PSA1 IHx8ICFpbnRlbF9kcC0+Y2hhbm5lbF9lcV9zdGF0dXMpClNvIEkgYW0gbm90IGp1c3QgYWRkaW5n IHRoZSBERUJVRyBwcmludCBidXQgYWxzbyBhZGRpbmcgdGhpcyBjb25kaXRpb24KdGhhdCBpZiB0 cmllcyA9PTUgb3IgaWYgY2hhbm5lbF9lcV9zdGF0dXMgaXMgc3RpbGwgZmFsc2UuClRoaXMgaXMg dGhlIHBsYWNlIHdoZXJlLCB0cmFpbl9zZXRfdmFsaWQgZ2V0cyBzZXQgdG8gZmFsc2UuCgpNYW5h c2kKCj4gPiA+IAo+ID4gPiBTaWduZWQtb2ZmLWJ5OiBNYW5hc2kgTmF2YXJlIDxtYW5hc2kuZC5u YXZhcmVAaW50ZWwuY29tPgo+ID4gPiBDYzogSmltIEJyaWRlIDxqaW0uYnJpZGVAbGludXguaW50 ZWwuY29tPgo+ID4gPiBDYzogSmFuaSBOaWt1bGEgPGphbmkubmlrdWxhQGxpbnV4LmludGVsLmNv bT4KPiA+ID4gQ2M6IFZpbGxlIFN5cmphbGEgPHZpbGxlLnN5cmphbGFAbGludXguaW50ZWwuY29t Pgo+ID4gPiAtLS0KPiA+ID4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwX2xpbmtfdHJh aW5pbmcuYyB8IDQgKystLQo+ID4gPiAgMSBmaWxlIGNoYW5nZWQsIDIgaW5zZXJ0aW9ucygrKSwg MiBkZWxldGlvbnMoLSkKPiA+ID4gCj4gPiA+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0v aTkxNS9pbnRlbF9kcF9saW5rX3RyYWluaW5nLmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRl bF9kcF9saW5rX3RyYWluaW5nLmMKPiA+ID4gaW5kZXggMDU5MDdmYS4uM2ZlZjIxOSAxMDA2NDQK PiA+ID4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHBfbGlua190cmFpbmluZy5j Cj4gPiA+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwX2xpbmtfdHJhaW5pbmcu Ywo+ID4gPiBAQCAtMjk0LDkgKzI5NCw5IEBAIGludGVsX2RwX2xpbmtfdHJhaW5pbmdfY2hhbm5l bF9lcXVhbGl6YXRpb24oc3RydWN0IGludGVsX2RwICppbnRlbF9kcCkKPiA+ID4gIAl9Cj4gPiA+ ICAKPiA+ID4gIAkvKiBUcnkgNSB0aW1lcywgZWxzZSBmYWlsIGFuZCB0cnkgYXQgbG93ZXIgQlcg Ki8KPiA+ID4gLQlpZiAodHJpZXMgPT0gNSkgewo+ID4gPiArCWlmICh0cmllcyA9PSA1IHx8ICFp bnRlbF9kcC0+Y2hhbm5lbF9lcV9zdGF0dXMpIHsKPiA+ID4gIAkJaW50ZWxfZHBfZHVtcF9saW5r X3N0YXR1cyhsaW5rX3N0YXR1cyk7Cj4gPiA+IC0JCURSTV9ERUJVR19LTVMoIkNoYW5uZWwgZXF1 YWxpemF0aW9uIGZhaWxlZCA1IHRpbWVzXG4iKTsKPiA+ID4gKwkJRFJNX0RFQlVHX0tNUygiQ2hh bm5lbCBlcXVhbGl6YXRpb24gZmFpbGVkXG4iKTsKPiA+ID4gIAl9Cj4gPiA+ICAKPiA+ID4gIAlp bnRlbF9kcF9zZXRfaWRsZV9saW5rX3RyYWluKGludGVsX2RwKTsKPiA+ID4gLS0gCj4gPiA+IDIu MS40Cj4gPiAKPiA+IC0tIAo+ID4gVmlsbGUgU3lyasOkbMOkCj4gPiBJbnRlbCBPVEMKPiBfX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwo+IEludGVsLWdmeCBt YWlsaW5nIGxpc3QKPiBJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCj4gaHR0cHM6Ly9s aXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngKX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcg bGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRl c2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==