From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: [PATCH] drm/dp: Power cycle display if LINK_ADDRESS fails. Date: Thu, 21 Dec 2017 08:53:28 +0200 Message-ID: <87ind0o9lj.fsf@intel.com> References: <20171221063624.2309-1-dhinakaran.pandiyan@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20171221063624.2309-1-dhinakaran.pandiyan@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: intel-gfx@lists.freedesktop.org Cc: Dave Airlie , Dhinakaran Pandiyan , dri-devel@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gV2VkLCAyMCBEZWMgMjAxNywgRGhpbmFrYXJhbiBQYW5kaXlhbiA8ZGhpbmFrYXJhbi5wYW5k aXlhbkBpbnRlbC5jb20+IHdyb3RlOgo+IE9jY2FzaW9uYWxseSB0aGVyZSBhcmUgTElOS19BRERS RVNTIHNpZGViYW5kIG1lc3NhZ2VzIHRpbWluZyBvdXQgd2l0aCB0aGUKPiBMZW5vdm8gTVNUIGRv Y2sgKyBEZWxsIE1TVCBtb25pdG9yKHcvIGluLWJ1aWx0IGJyYW5jaCkgc2V0dXAgSSBoYXZlLiBU aGVzZQo+IGZhaWx1cmVzIGxlYWQgdG8gdGhlIGRpc3BsYXkgbm90IGNvbWluZyB1cCBvbiBib290 LiBQb3dlciBjeWNsaW5nIHRoZSBwb3J0Cj4gY29ycmVzcG9uZGluZyB0byB0aGUgTVNUIG1vbml0 b3IncyBicmFuY2ggZGV2aWNlIGFuZCByZXNlbmRpbmcgdGhlIG1lc3NhZ2UKPiBmaXhlcyB0aGUg aXNzdWUuIEkgYW0gbm90IGVudGlyZWx5IHN1cmUgaWYgdGhpcyBpcyBzcGVjaWZpYyB0byBteSBz ZXR1cC4KPiBIb3dldmVyLCBhcyB0aGUgcG93ZXIgc3RhdGUgaXMgdG9nZ2xlZCBjb25kaXRpb25h bGx5IG9uIExJTktfQUREUkVTUwo+IHRpbWVvdXRzLCB0aGlzIHNob3VsZCBub3QgYWZmZWN0IHRo ZSB3b3JraW5nIGNhc2VzLgoKV2l0aCBzdHVmZiBsaWtlIHRoaXMsIEkgYWx3YXlzIHdvbmRlciBp ZiBjYXRlcmluZyBmb3IgYSBmYWlsaW5nIHNldHVwCmJsb2NrcyB1cyBmcm9tIGltcHJvdmluZyB3 b3JraW5nIHNldHVwcywgYmVjYXVzZSBvbmNlIHdlIGFkZCB0aGlzLCB3ZQpjYW4ndCByZWdyZXNz IGl0LiBGb3IgZXhhbXBsZSwgaXMgdGhlcmUgYSB2YWxpZCBzY2VuYXJpbyB3aGVyZSB3ZSdkIHdh bnQKdG8gZmFpbCBmYXN0IGhlcmUsIGluc3RlYWQgb2YgcmV0cnlpbmc/CgpTb21lIG5pdHMgYmVs b3cuCgo+IENjOiBMeXVkZSA8bHl1ZGVAcmVkaGF0LmNvbT4KPiBDYzogRGF2ZSBBaXJsaWUgPGFp cmxpZWRAcmVkaGF0LmNvbT4KPiBDYzogSmFuaSBOaWt1bGEgPGphbmkubmlrdWxhQGludGVsLmNv bT4KPiBTaWduZWQtb2ZmLWJ5OiBEaGluYWthcmFuIFBhbmRpeWFuIDxkaGluYWthcmFuLnBhbmRp eWFuQGludGVsLmNvbT4KPiAtLS0KPiAgZHJpdmVycy9ncHUvZHJtL2RybV9kcF9tc3RfdG9wb2xv Z3kuYyB8IDEzICsrKysrKysrKysrLS0KPiAgMSBmaWxlIGNoYW5nZWQsIDExIGluc2VydGlvbnMo KyksIDIgZGVsZXRpb25zKC0pCj4KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2RybV9k cF9tc3RfdG9wb2xvZ3kuYyBiL2RyaXZlcnMvZ3B1L2RybS9kcm1fZHBfbXN0X3RvcG9sb2d5LmMK PiBpbmRleCA3MGRjZmE1OGQzYzIuLmUwNmRlZmNkY2YxOCAxMDA2NDQKPiAtLS0gYS9kcml2ZXJz L2dwdS9kcm0vZHJtX2RwX21zdF90b3BvbG9neS5jCj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2Ry bV9kcF9tc3RfdG9wb2xvZ3kuYwo+IEBAIC0xNTk2LDggKzE1OTYsOSBAQCBzdGF0aWMgdm9pZCBk cm1fZHBfc2VuZF9saW5rX2FkZHJlc3Moc3RydWN0IGRybV9kcF9tc3RfdG9wb2xvZ3lfbWdyICpt Z3IsCj4gIAlpbnQgbGVuOwo+ICAJc3RydWN0IGRybV9kcF9zaWRlYmFuZF9tc2dfdHggKnR4bXNn Owo+ICAJaW50IHJldDsKPiArCWludCBhdHRlbXB0cyA9IDU7Cj4gIAo+IC0JdHhtc2cgPSBremFs bG9jKHNpemVvZigqdHhtc2cpLCBHRlBfS0VSTkVMKTsKPiArcmV0cnk6CXR4bXNnID0ga3phbGxv YyhzaXplb2YoKnR4bXNnKSwgR0ZQX0tFUk5FTCk7Cj4gIAlpZiAoIXR4bXNnKQo+ICAJCXJldHVy bjsKPiAgCj4gQEAgLTE2MzUsOSArMTYzNiwxNyBAQCBzdGF0aWMgdm9pZCBkcm1fZHBfc2VuZF9s aW5rX2FkZHJlc3Moc3RydWN0IGRybV9kcF9tc3RfdG9wb2xvZ3lfbWdyICptZ3IsCj4gIAkJCX0K PiAgCQkJKCptZ3ItPmNicy0+aG90cGx1ZykobWdyKTsKPiAgCQl9Cj4gKwl9IGVsc2UgaWYgKGF0 dGVtcHRzLS0pIHsKCllvdSdsbCBlbmQgdXAgZG9pbmcgKGF0dGVtcHRzICsgMSkgYXR0ZW1wdHMs IGluY2x1ZGluZyB0aGUgZmlyc3Qgb25lLgoKPiArCQlrZnJlZSh0eG1zZyk7CgpIb3cgYWJvdXQg bWVtc2V0KHR4bXNnLCAwLCBzaXpvZWYoKnR4bXNnKSk7IGhlcmUgYW5kIG1vdmUgdGhlIGdvdG8g bGFiZWwKZG93biB0byBhdm9pZCByZXBlYXRlZCBhbGxvY2F0aW9ucz8KCj4gKwkJZHJtX2RwX3Nl bmRfcG93ZXJfdXBkb3duX3BoeShtc3RiLT5tZ3IsIG1zdGItPnBvcnRfcGFyZW50LAo+ICsJCQkJ CSAgICAgZmFsc2UpOwo+ICsJCWRybV9kcF9zZW5kX3Bvd2VyX3VwZG93bl9waHkobXN0Yi0+bWdy LCBtc3RiLT5wb3J0X3BhcmVudCwKPiArCQkJCQkgICAgIHRydWUpOwo+ICsJCURSTV9ERUJVR19L TVMoImxpbmsgYWRkcmVzcyBmYWlsZWQgJWQsIHJldHJ5aW5nXG4iLCByZXQpOwoKTWF5YmUgZG8g dGhlIGRlYnVnIG1lc3NhZ2UgYmVmb3JlIHlvdSBwb3dlciBkb3duL3VwPwoKQlIsCkphbmkuCgo+ ICsJCWdvdG8gcmV0cnk7Cj4gIAl9IGVsc2Ugewo+ICAJCW1zdGItPmxpbmtfYWRkcmVzc19zZW50 ID0gZmFsc2U7Cj4gLQkJRFJNX0RFQlVHX0tNUygibGluayBhZGRyZXNzIGZhaWxlZCAlZFxuIiwg cmV0KTsKPiArCQlEUk1fREVCVUdfS01TKCJsaW5rIGFkZHJlc3MgZmFpbGVkICVkLCBnaXZpbmcg dXBcbiIsIHJldCk7Cj4gIAl9Cj4gIAo+ICAJa2ZyZWUodHhtc2cpOwoKLS0gCkphbmkgTmlrdWxh LCBJbnRlbCBPcGVuIFNvdXJjZSBUZWNobm9sb2d5IENlbnRlcgpfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVs LWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcv bWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK