From mboxrd@z Thu Jan 1 00:00:00 1970 From: Manasi Navare Subject: Re: [PATCH v7] drm/i915/edp: Be less aggressive about changing link config on eDP Date: Fri, 15 Sep 2017 11:19:12 -0700 Message-ID: <20170915181911.GA10820@intel.com> References: <1502313667-18127-1-git-send-email-jim.bride@linux.intel.com> <1503419686-9558-1-git-send-email-jim.bride@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1D7616ECC7 for ; Fri, 15 Sep 2017 18:15:43 +0000 (UTC) Content-Disposition: inline In-Reply-To: <1503419686-9558-1-git-send-email-jim.bride@linux.intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Jim Bride Cc: Paulo Zanoni , Jani Nikula , intel-gfx@lists.freedesktop.org, Rodrigo Vivi List-Id: intel-gfx@lists.freedesktop.org VGhlIHBhdGNoIGxvb2tzIGdvb2QgZm9yIGVEUCBsaW5rIHRyYWluaW5nIG9wdGltaXphdGlvbnMu CgpSZXZpZXdlZC1ieTogTWFuYXNpIE5hdmFyZSA8bWFuYXNpLmQubmF2YXJlQGludGVsLmNvbT4K Ck1hbmFzaQoKT24gVHVlLCBBdWcgMjIsIDIwMTcgYXQgMDk6MzQ6NDZBTSAtMDcwMCwgSmltIEJy aWRlIHdyb3RlOgo+IFRoaXMgc2V0IG9mIGNoYW5nZXMgaGFzIHNvbWUgaGlzdG9yeSB0byB0aGVt LiAgVGhlcmUgd2VyZSBzZXZlcmFsIGF0dGVtcHRzCj4gdG8gYWRkIHdoYXQgd2FzIGNhbGxlZCAi ZmFzdCBsaW5rIHRyYWluaW5nIiB0byBpOTE1LCB3aGljaCBhY3R1YWxseSB3YXNuJ3QKPiBmYXN0 IGxpbmsgdHJhaW5pbmcgYXMgcGVyIHRoZSBEUCBzcGVjLiAgVGhlc2UgY2hhbmdlcyB3ZXJlOgo+ IAo+IGNvbW1pdCA1ZmE4MzZhOWQ4NTkgKCJkcm0vaTkxNTogRFAgbGluayB0cmFpbmluZyBvcHRp bWl6YXRpb24iKQo+IGNvbW1pdCA0ZTk2Yzk3NzQyZjQgKCJkcm0vaTkxNTogZURQIGxpbmsgdHJh aW5pbmcgb3B0aW1pemF0aW9uIikKPiAKPiB3aGljaCB3ZXJlIGV2ZW50dWFsbHkgaGFuZC1yZXZl cnRlZCBieToKPiAKPiBjb21taXQgMzQ1MTFkY2U0YjM1ICgiZHJtL2k5MTU6IFJldmVydCBEaXNw bGF5UG9ydCBmYXN0IGxpbmsgdHJhaW5pbmcKPiAgICAgICAgICAgICAgICAgICAgICBmZWF0dXJl IikKPiAKPiBpbiBrZXJuZWwgNC43LXJjNC4gIFRoZSBlRFAgcGllY2VzIG9mIHRoZSBhYm92ZSBy ZXZlcnQsIGhvd2V2ZXIsIGhhZCBzb21lCj4gdmVyeSBiYWQgc2lkZS1lZmZlY3RzIG9uIFBTUiBm dW5jdGlvbmFsaXR5IG9uIFNreWxha2UuIFRoZSBpc3N1ZSBhdAo+IGhhbmQgaXMgdGhhdCB3aGVu IFBTUiBleGl0cyBpOTE1IGJyaWVmbHkgZW1pdHMgVFAxIGZvbGxvd2VkIGJ5IFRQMi8zCj4gKGRl cGVuZGluZyBvbiB0aGUgb3JpZ2luYWwgbGluayBjb25maWd1cmF0aW9uKSBpbiBvcmRlciB0byBx dWlja2x5IGdldAo+IHRoZSBzb3VyY2UgYW5kIHNpbmsgYmFjayBpbiBzeW5jaHJvbml6YXRpb24g YWNyb3NzIHRoZSBsaW5rIGJlZm9yZSBoYW5kaW5nCj4gY29udHJvbCBiYWNrIHRvIHRoZSBpOTE1 LiAgVGhlcmUncyBhbiBhc3N1bXB0aW9uIHRoYXQgbm9uZSBvZiB0aGUgbGluawo+IGNvbmZpZ3Vy YXRpb24gaW5mb3JtYXRpb24gaGFzIGNoYW5nZWQgKGFuZCB0aHVzIGl0J3Mgc3RpbGwgdmFsaWQp IHNpbmNlIHRoZQo+IGxhc3QgZnVsbCBsaW5rIHRyYWluaW5nIG9wZXJhdGlvbi4gIFRoZSByZXZl cnQgYWJvdmUgd2FzIGlkZW50aWZpZWQgdmlhIGEKPiBiaXNlY3QgYXMgdGhlIGNhdXNlIG9mIHNv bWUgb2YgU2t5bGFrZSdzIFBTUiB3b2VzLiAgVGhpcyBwYXRjaCwgbGFyZ2VseQo+IGJhc2VkIG9u IGNvbW1pdCA0ZTk2Yzk3NzQyZjQgKCJkcm0vaTkxNTogZURQIGxpbmsgdHJhaW5pbmcgb3B0aW1p emF0aW9uIikKPiBwdXRzIHRoZSBlRFAgcG9ydGlvbnMgb2YgdGhpcyBwYXRjaCBiYWNrIGluIHBs YWNlLiAgTm9uZSBvZiB0aGUgZmxpY2tlcmluZwo+IGlzc3VlcyB0aGF0IHNwdXJyZWQgdGhlIHJl dmVydCBoYXZlIGJlZW4gc2VlbiwgYW5kIEkgc3VzcGVjdCB0aGUgcmVhbAo+IGN1bHByaXRzIGhl cmUgd2VyZSBhZGRyZXNzZWQgYnkgc29tZSBvZiB0aGUgcmVjZW50IGxpbmsgdHJhaW5pbmcgY2hh bmdlcwo+IHRoYXQgTWFuYXNpIGhhcyBpbXBsZW1lbnRlZCwgYW5kIFBTUiBvbiBTa3lsYWtlIGlz IGRlZmluaXRlbHkgbW9yZSBoYXBweQo+IHdpdGggdGhlc2UgY2hhbmdlcyBpbi1wbGFjZS4KPiAK PiB2MiBhbmQgdjM6IFJlYmFzZQo+IHY0OiAqIENsZWFuIHVwIGFjY2Vzc2VzIHRvIHRyYWluX3Nl dF92YWxpZCBhIGJpdCBmb3IgZWFzaWVyCj4gICAgICAgcmVhZGluZy4gKENocmlzKQo+ICAgICAq IFJlYmFzZQo+IHY1OiAqIENoZWNrcGF0Y2ggY2xlYW51cAo+ICAgICAqIFJlYmFzZQo+IHY2OiAq IGlzX2VkcCgpID0+IGludGVsX2RwX2lzX2VkcCgpCj4gICAgICogcmViYXNlCj4gdjc6ICogUmVt b3ZlIGV4dHJhbmVvdXMgaXNfZWRwKCkgcHJvdG90eXBlIChSb2RyaWdvKQo+IAo+IENjOiBDaHJp cyBXaWxzb24gPGNocmlzQGNocmlzLXdpbHNvbi5jby51az4KPiBDYzogUm9kcmlnbyBWaXZpIDxy b2RyaWdvLnZpdmlAaW50ZWwuY29tPgo+IENjOiBQYXVsbyBaYW5vbmkgPHBhdWxvLnIuemFub25p QGludGVsLmNvbT4KPiBDYzogTWFuYXNpIEQgTmF2YXJlIDxtYW5hc2kuZC5uYXZhcmVAaW50ZWwu Y29tPgo+IENjOiBNaWthIEthaG9sYSA8bWlrYS5rYWhvbGFAaW50ZWwuY29tPgo+IENjOiBKYW5p IE5pa3VsYSA8amFuaS5uaWt1bGFAaW50ZWwuY29tPgo+IEZpeGVzOiAzNDUxMWRjZTQgKCJkcm0v aTkxNTogUmV2ZXJ0IERpc3BsYXlQb3J0IGZhc3QgbGluayB0cmFpbmluZyBmZWF0dXJlIikKPiBT aWduZWQtb2ZmLWJ5OiBKaW0gQnJpZGUgPGppbS5icmlkZUBsaW51eC5pbnRlbC5jb20+Cj4gLS0t Cj4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwLmMgICAgICAgICAgICAgICB8ICAyICsr Cj4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwX2xpbmtfdHJhaW5pbmcuYyB8IDE1ICsr KysrKysrKysrKysrLQo+ICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcnYuaCAgICAgICAg ICAgICAgfCAgMSArCj4gIDMgZmlsZXMgY2hhbmdlZCwgMTcgaW5zZXJ0aW9ucygrKSwgMSBkZWxl dGlvbigtKQo+IAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcC5j IGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHAuYwo+IGluZGV4IGUzODU2NTguLjM4YmM3 ZTAgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHAuYwo+ICsrKyBi L2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwLmMKPiBAQCAtNDc1MCw2ICs0NzUwLDcgQEAg aW50ZWxfZHBfbG9uZ19wdWxzZShzdHJ1Y3QgaW50ZWxfY29ubmVjdG9yICppbnRlbF9jb25uZWN0 b3IpCj4gIAkJaW50ZWxfZHAtPm1heF9saW5rX3JhdGUgPSBpbnRlbF9kcF9tYXhfY29tbW9uX3Jh dGUoaW50ZWxfZHApOwo+ICAKPiAgCQlpbnRlbF9kcC0+cmVzZXRfbGlua19wYXJhbXMgPSBmYWxz ZTsKPiArCQlpbnRlbF9kcC0+dHJhaW5fc2V0X3ZhbGlkID0gZmFsc2U7Cj4gIAl9Cj4gIAo+ICAJ aW50ZWxfZHBfcHJpbnRfcmF0ZXMoaW50ZWxfZHApOwo+IEBAIC02MDE5LDYgKzYwMjAsNyBAQCBp bnRlbF9kcF9pbml0X2Nvbm5lY3RvcihzdHJ1Y3QgaW50ZWxfZGlnaXRhbF9wb3J0ICppbnRlbF9k aWdfcG9ydCwKPiAgCWludGVsX2RwX3NldF9zb3VyY2VfcmF0ZXMoaW50ZWxfZHApOwo+ICAKPiAg CWludGVsX2RwLT5yZXNldF9saW5rX3BhcmFtcyA9IHRydWU7Cj4gKwlpbnRlbF9kcC0+dHJhaW5f c2V0X3ZhbGlkID0gZmFsc2U7Cj4gIAlpbnRlbF9kcC0+cHBzX3BpcGUgPSBJTlZBTElEX1BJUEU7 Cj4gIAlpbnRlbF9kcC0+YWN0aXZlX3BpcGUgPSBJTlZBTElEX1BJUEU7Cj4gIAo+IGRpZmYgLS1n aXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcF9saW5rX3RyYWluaW5nLmMgYi9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcF9saW5rX3RyYWluaW5nLmMKPiBpbmRleCAwNTkwN2Zh Li43OWZlMzY5IDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwX2xp bmtfdHJhaW5pbmcuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwX2xpbmtf dHJhaW5pbmcuYwo+IEBAIC05NCw3ICs5NCw4IEBAIHN0YXRpYyBib29sCj4gIGludGVsX2RwX3Jl c2V0X2xpbmtfdHJhaW4oc3RydWN0IGludGVsX2RwICppbnRlbF9kcCwKPiAgCQkJdWludDhfdCBk cF90cmFpbl9wYXQpCj4gIHsKPiAtCW1lbXNldChpbnRlbF9kcC0+dHJhaW5fc2V0LCAwLCBzaXpl b2YoaW50ZWxfZHAtPnRyYWluX3NldCkpOwo+ICsJaWYgKCFpbnRlbF9kcC0+dHJhaW5fc2V0X3Zh bGlkKQo+ICsJCW1lbXNldChpbnRlbF9kcC0+dHJhaW5fc2V0LCAwLCBzaXplb2YoaW50ZWxfZHAt PnRyYWluX3NldCkpOwo+ICAJaW50ZWxfZHBfc2V0X3NpZ25hbF9sZXZlbHMoaW50ZWxfZHApOwo+ ICAJcmV0dXJuIGludGVsX2RwX3NldF9saW5rX3RyYWluKGludGVsX2RwLCBkcF90cmFpbl9wYXQp Owo+ICB9Cj4gQEAgLTE2Miw5ICsxNjMsMTggQEAgaW50ZWxfZHBfbGlua190cmFpbmluZ19jbG9j a19yZWNvdmVyeShzdHJ1Y3QgaW50ZWxfZHAgKmludGVsX2RwKQo+ICAJCQkJICAgICAgIERQX1RS QUlOSU5HX1BBVFRFUk5fMSB8Cj4gIAkJCQkgICAgICAgRFBfTElOS19TQ1JBTUJMSU5HX0RJU0FC TEUpKSB7Cj4gIAkJRFJNX0VSUk9SKCJmYWlsZWQgdG8gZW5hYmxlIGxpbmsgdHJhaW5pbmdcbiIp Owo+ICsJCWludGVsX2RwLT50cmFpbl9zZXRfdmFsaWQgPSBmYWxzZTsKPiAgCQlyZXR1cm4gZmFs c2U7Cj4gIAl9Cj4gIAo+ICsJLyoKPiArCSAqIFRoZSBpbml0aWFsIHNldCBvZiBsaW5rIHBhcmFt ZXRlcnMgYXJlIHNldCBieSB0aGlzIHBvaW50LCBzbyBnbwo+ICsJICogYWhlYWQgYW5kIHNldCBp bnRlbF9kcC0+dHJhaW5fc2V0X3ZhbGlkIHRvIGZhbHNlIGluIGNhc2UgYW55IG9mCj4gKwkgKiB0 aGUgc3VjY2VlZGluZyBzdGVwcyBmYWlsLiAgSXQgd2lsbCBiZSBzZXQgYmFjayB0byB0cnVlIGlm IHdlIHdlcmUKPiArCSAqIGFibGUgdG8gYWNoaWV2ZSBjbG9jayByZWNvdmVyeSBpbiB0aGUgc3Bl Y2lmaWVkIGNvbmZpZ3VyYXRpb24uCj4gKwkgKi8KPiArCWludGVsX2RwLT50cmFpbl9zZXRfdmFs aWQgPSBmYWxzZTsKPiArCj4gIAl2b2x0YWdlX3RyaWVzID0gMTsKPiAgCW1heF92c3dpbmdfdHJp ZXMgPSAwOwo+ICAJZm9yICg7Oykgewo+IEBAIC0xNzksNiArMTg5LDcgQEAgaW50ZWxfZHBfbGlu a190cmFpbmluZ19jbG9ja19yZWNvdmVyeShzdHJ1Y3QgaW50ZWxfZHAgKmludGVsX2RwKQo+ICAK PiAgCQlpZiAoZHJtX2RwX2Nsb2NrX3JlY292ZXJ5X29rKGxpbmtfc3RhdHVzLCBpbnRlbF9kcC0+ bGFuZV9jb3VudCkpIHsKPiAgCQkJRFJNX0RFQlVHX0tNUygiY2xvY2sgcmVjb3ZlcnkgT0tcbiIp Owo+ICsJCQlpbnRlbF9kcC0+dHJhaW5fc2V0X3ZhbGlkID0gaW50ZWxfZHBfaXNfZWRwKGludGVs X2RwKTsKPiAgCQkJcmV0dXJuIHRydWU7Cj4gIAkJfQo+ICAKPiBAQCAtMjU2LDYgKzI2Nyw3IEBA IGludGVsX2RwX2xpbmtfdHJhaW5pbmdfY2hhbm5lbF9lcXVhbGl6YXRpb24oc3RydWN0IGludGVs X2RwICppbnRlbF9kcCkKPiAgCQkJCSAgICAgdHJhaW5pbmdfcGF0dGVybiB8Cj4gIAkJCQkgICAg IERQX0xJTktfU0NSQU1CTElOR19ESVNBQkxFKSkgewo+ICAJCURSTV9FUlJPUigiZmFpbGVkIHRv IHN0YXJ0IGNoYW5uZWwgZXF1YWxpemF0aW9uXG4iKTsKPiArCQlpbnRlbF9kcC0+dHJhaW5fc2V0 X3ZhbGlkID0gZmFsc2U7Cj4gIAkJcmV0dXJuIGZhbHNlOwo+ICAJfQo+ICAKPiBAQCAtMjk2LDYg KzMwOCw3IEBAIGludGVsX2RwX2xpbmtfdHJhaW5pbmdfY2hhbm5lbF9lcXVhbGl6YXRpb24oc3Ry dWN0IGludGVsX2RwICppbnRlbF9kcCkKPiAgCS8qIFRyeSA1IHRpbWVzLCBlbHNlIGZhaWwgYW5k IHRyeSBhdCBsb3dlciBCVyAqLwo+ICAJaWYgKHRyaWVzID09IDUpIHsKPiAgCQlpbnRlbF9kcF9k dW1wX2xpbmtfc3RhdHVzKGxpbmtfc3RhdHVzKTsKPiArCQlpbnRlbF9kcC0+dHJhaW5fc2V0X3Zh bGlkID0gZmFsc2U7Cj4gIAkJRFJNX0RFQlVHX0tNUygiQ2hhbm5lbCBlcXVhbGl6YXRpb24gZmFp bGVkIDUgdGltZXNcbiIpOwo+ICAJfQo+ICAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJt L2k5MTUvaW50ZWxfZHJ2LmggYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcnYuaAo+IGlu ZGV4IDI5NDBkMzkuLmY0MzU0ZWMgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUv aW50ZWxfZHJ2LmgKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcnYuaAo+IEBA IC05OTUsNiArOTk1LDcgQEAgc3RydWN0IGludGVsX2RwIHsKPiAgCXN0cnVjdCBkcm1fZHBfYXV4 IGF1eDsKPiAgCWVudW0gaW50ZWxfZGlzcGxheV9wb3dlcl9kb21haW4gYXV4X3Bvd2VyX2RvbWFp bjsKPiAgCXVpbnQ4X3QgdHJhaW5fc2V0WzRdOwo+ICsJYm9vbCB0cmFpbl9zZXRfdmFsaWQ7Cj4g IAlpbnQgcGFuZWxfcG93ZXJfdXBfZGVsYXk7Cj4gIAlpbnQgcGFuZWxfcG93ZXJfZG93bl9kZWxh eTsKPiAgCWludCBwYW5lbF9wb3dlcl9jeWNsZV9kZWxheTsKPiAtLSAKPiAyLjcuNAo+IApfX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFp bGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5m cmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK