From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCH] drm/i915: Fall back to zero vswing/preemph if the sink doesn't like the last good values Date: Mon, 2 Nov 2015 16:55:19 +0200 Message-ID: <20151102145519.GK4437@intel.com> References: <1446223656-27792-1-git-send-email-ville.syrjala@linux.intel.com> <1446470490.3555.18.camel@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTP id 4EAC36E4FD for ; Mon, 2 Nov 2015 06:55:43 -0800 (PST) Content-Disposition: inline In-Reply-To: <1446470490.3555.18.camel@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: "Conselvan De Oliveira, Ander" Cc: "intel-gfx@lists.freedesktop.org" List-Id: intel-gfx@lists.freedesktop.org T24gTW9uLCBOb3YgMDIsIDIwMTUgYXQgMDE6MjE6MjNQTSArMDAwMCwgQ29uc2VsdmFuIERlIE9s aXZlaXJhLCBBbmRlciB3cm90ZToKPiBPbiBGcmksIDIwMTUtMTAtMzAgYXQgMTg6NDcgKzAyMDAs IHZpbGxlLnN5cmphbGFAbGludXguaW50ZWwuY29tIHdyb3RlOgo+ID4gRnJvbTogVmlsbGUgU3ly asOkbMOkIDx2aWxsZS5zeXJqYWxhQGxpbnV4LmludGVsLmNvbT4KPiA+IAo+ID4gTXkgTGVub3Zv IFNUTSBTVERQMzEwMCBtaW5pRFAtPlZHQSBkb25nbGUgZG9lc24ndCBzZWVtIHRvIGxpa2UgaXQg d2hlbgo+ID4gd2UgdHJ5IHRvIHN0YXJ0IGxpbmsgdHJhaW5pbmcgd2l0aCBub24temVybyB2c3dp bmcvcHJlZW1waGFzaXMuIFNvIHdoZW4KPiA+IHRoZSBpbml0aWFsIGxpbmsgdHJhaW5pbmcgRFBD RCB3cml0ZSBmYWlscywgcmV0cnkgaXQgd2l0aCB6ZXJvIHZhbHVlcy4KPiAKPiBEb2VzIHRoZSBk ZXZpY2UgTkFDS3MgdGhlIHJlcXVlc3Q/CgpUaGF0IHdhcyBteSBhc3N1bXB0aW9uLCBidXQgYWN0 dWFsbHkgaXQganVzdCBkZWZlcnMgaXQgdG8gZGVhdGguIEkgaGFkIHRvCmJ1bXAgdGhlIHJldHJ5 IGNvdW50IHRvIH40OCB0byBtYWtlIGl0IHdvcmsgd2l0aG91dCB0aGlzIHBhdGNoLiBUaGF0IHdh cwp3aXRoIGRybS5kZWJ1Zz0wLCB3aXRoIGRybS5kZWJ1Zz0weGUgaXQgc2VlbXMgdG8gd29yayBl dmVuIHdpdGggdGhlCmN1cnJlbnQgcmV0cnkgY291bnQgb2YgMzIuIFdoaWNoIGFsc28gbWFrZXMg bWUgdGhpbmsgd2Ugc2hvdWxkIHJ1biB0aGUKYmF0IHN0dWZmIGJvdGggd2l0aCBkZWJ1Z3Mgb24g YW5kIG9mZiB0byBjYXRjaCBtb3JlIHByb2JsZW1zLgoKPiAKPiBBbmRlcgo+IAo+ID4gCj4gPiBG aXhlcyBhIGJ1bmNoIG9mIGVycm9ycyBsaWtlIHNvOgo+ID4gW2RybTppbnRlbF9kcF9zdGFydF9s aW5rX3RyYWluIFtpOTE1XV0gKkVSUk9SKiBmYWlsZWQgdG8gZW5hYmxlIGxpbmsgdHJhaW5pbmcK PiA+IAo+ID4gQ2M6IE1pa2EgS2Fob2xhIDxtaWthLmthaG9sYUBpbnRlbC5jb20+Cj4gPiBDYzog U2l2YWt1bWFyIFRodWxhc2ltYW5pIDxzaXZha3VtYXIudGh1bGFzaW1hbmlAaW50ZWwuY29tPgo+ ID4gQ2M6IEFuZGVyIENvbnNlbHZhbiBkZSBPbGl2ZWlyYSA8YW5kZXIuY29uc2VsdmFuLmRlLm9s aXZlaXJhQGludGVsLmNvbT4KPiA+IEZpeGVzOiA1ZmE4MzZhOWQ4NTkgKCJkcm0vaTkxNTogRFAg bGluayB0cmFpbmluZyBvcHRpbWl6YXRpb24iKQo+ID4gU2lnbmVkLW9mZi1ieTogVmlsbGUgU3ly asOkbMOkIDx2aWxsZS5zeXJqYWxhQGxpbnV4LmludGVsLmNvbT4KPiA+IC0tLQo+ID4gIGRyaXZl cnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwLmMgfCA3ICsrKysrKysKPiA+ICAxIGZpbGUgY2hhbmdl ZCwgNyBpbnNlcnRpb25zKCspCj4gPiAKPiA+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0v aTkxNS9pbnRlbF9kcC5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHAuYwo+ID4gaW5k ZXggYmE0Y2JmNS4uOTUyOWE2ZSAxMDA2NDQKPiA+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1 L2ludGVsX2RwLmMKPiA+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwLmMKPiA+ IEBAIC0zNzUwLDEwICszNzUwLDE3IEBAIGludGVsX2RwX2xpbmtfdHJhaW5pbmdfY2xvY2tfcmVj b3Zlcnkoc3RydWN0IGludGVsX2RwCj4gPiAqaW50ZWxfZHApCj4gPiAgCj4gPiAgCURQIHw9IERQ X1BPUlRfRU47Cj4gPiAgCj4gPiArYWdhaW46Cj4gPiAgCS8qIGNsb2NrIHJlY292ZXJ5ICovCj4g PiAgCWlmICghaW50ZWxfZHBfcmVzZXRfbGlua190cmFpbihpbnRlbF9kcCwgJkRQLAo+ID4gIAkJ CQkgICAgICAgRFBfVFJBSU5JTkdfUEFUVEVSTl8xIHwKPiA+ICAJCQkJICAgICAgIERQX0xJTktf U0NSQU1CTElOR19ESVNBQkxFKSkgewo+ID4gKwkJaWYgKGludGVsX2RwLT50cmFpbl9zZXRfdmFs aWQpIHsKPiA+ICsJCQlEUk1fREVCVUdfS01TKCJTaW5rIHJlamVjdGVkIGxpbmsgdHJhaW5pbmcg cmVxdWVzdCwKPiA+IHRyeWluZyBhZ2FpbiB3aXRoIHplcm8gdmFsdWVzXG4iKTsKPiA+ICsJCQlp bnRlbF9kcC0+dHJhaW5fc2V0X3ZhbGlkID0gZmFsc2U7Cj4gPiArCQkJZ290byBhZ2FpbjsKPiA+ ICsJCX0KPiA+ICsKPiA+ICAJCURSTV9FUlJPUigiZmFpbGVkIHRvIGVuYWJsZSBsaW5rIHRyYWlu aW5nXG4iKTsKPiA+ICAJCXJldHVybjsKPiA+ICAJfQoKLS0gClZpbGxlIFN5cmrDpGzDpApJbnRl bCBPVEMKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50 ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHA6 Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK