From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: Timing issues between ALSA and i915 drivers Date: Wed, 16 Jan 2019 20:17:56 +0100 Message-ID: References: <045cfacd-7a8a-af3c-0f82-325b12cf65da@linux.intel.com> Mime-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <045cfacd-7a8a-af3c-0f82-325b12cf65da@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: Pierre-Louis Bossart Cc: "Rojewski, Cezary" , intel-gfx@lists.freedesktop.org, "moderated list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEM..." , Mark Brown List-Id: alsa-devel@alsa-project.org T24gV2VkLCAxNiBKYW4gMjAxOSAxODo0ODoyNSArMDEwMCwKUGllcnJlLUxvdWlzIEJvc3NhcnQg d3JvdGU6Cj4gCj4gSGksCj4gCj4gSSBjb3VsZCB1c2Ugc29tZSBmZWVkYmFjayBvbiBIRE1JIGF1 ZGlvIGlzc3VlcyBleHBvc2VkIGR1cmluZyB0aGUgNC4yMQo+IG1lcmdlIHdpbmRvdy4gQnkgYWNj aWRlbnQgKG1pc2xlYWRpbmcgZG9jdW1lbnRhdGlvbikgd2UgZW5kZWQgdXAKPiBlbmFibGluZyB0 aGUgU2t5bGFrZSBkcml2ZXIgaW5zdGVhZCBvZiB0aGUgSERhdWRpbyBsZWdhY3ksIGFuZCBicm9r ZQo+IGF1ZGlvIG9uIGEgbnVtYmVyIG9mIFNreWxha2UgYW5kIEFwb2xsb0xha2UgZGV2aWNlcyB3 aGVyZSB0aGUKPiBIRE1JL2lESVNQIGNvZGVjIHdhcyBub3QgZGV0ZWN0ZWQgKGJpdCAyIG5vdCBz ZXQgaW4gdGhlCj4gY29kZWNfbWFzaykuIExpbnVzJyBEZWxsIFhQUzEzIDkzNTAgd2FzIHRoZSBm aXJzdCB0byBiZSBpbXBhY3RlZCBvZgo+IGNvdXJzZS4uLgo+IAo+IEFmdGVyIGRlYnVnZ2luZyBh IGJpdCwgdGhpcyBpc3N1ZSBjYW4gYmUgcmVzb2x2ZWQgYnkgZWl0aGVyCj4gCj4gYSkgY29tcGls aW5nIGJvdGggU09VTkQgYW5kIERSTSBhcyBidWlsdC1pbnMgKHkgaW5zdGVhZCBvZiBtKQo+IAo+ IGIpIG1vdmluZyB0aGUgY2FsbHMgc25kX2hkYWNfaTkxNV9pbml0KCkgdG8gdGhlIHByb2JlIGZ1 bmN0aW9uIGluc3RlYWQKPiBvZiB0aGUgd29ya2VyIHF1ZXVlIChjb2RlIGF0Cj4gaHR0cHM6Ly9n aXRodWIuY29tL3BsYm9zc2FydC9zb3VuZC9jb21taXRzL2ZpeC9za2wtaGRtaSkKClRoaXMgaXNu J3QgZ3VhcmFudGVlZCB0byB3b3JrLCBhcyByZXF1ZXN0X21vZHVsZSgpIG1pZ2h0IGJlIGludm9s dmVkLApJJ20gYWZyYWlkLgoKPiBCb3RoIHNvbHV0aW9ucyBwb2ludCB0byB0aW1pbmcgaXNzdWVz Lgo+IAo+IER1cmluZyBpbnRlcm5hbCByZXZpZXdzIEkgd2FzIGFsZXJ0ZWQgdG8gdGhlIGZhY3Qg dGhhdCB0aGUgc3VnZ2VzdGVkCj4gZml4IGVzc2VudGlhbGx5IHJldmVydHMgcGF0Y2ggYWIxYjcz MmQ1M2MxOCAoJ0FTb0M6IEludGVsOiBTa3lsYWtlOgo+IE1vdmUgaTkxNSByZWdpc3RyYXRpb24g dG8gd29ya2VyIHRocmVhZCcpIHdoaWNoIHdhcyBpbnRyb2R1Y2VkIHRvCj4gc29sdmUgRFJNIGxv Y2t1cCBpc3N1ZXMuCj4gCj4gSW4gb3RoZXIgd29yZHMsIHdlIGFyZSBhdCBhIHBvaW50IHdoZXJl IHdlIGVpdGhlciBoYXZlIERSTSBsb2NrdXBzIG9yCj4gY2FuJ3QgZGV0ZWN0IHRoZSBIRE1JIGF1 ZGlvIGNvZGVjLCBub25lIG9mIHdoaWNoIGFyZSB0b28gZ29vZC4KPiAKPiBJIGRvbid0IGhhdmUg dGhlIGJhY2tncm91bmQgZm9yIHRoZSBEUk0gbG9ja3VwIHN0dWZmLCBub3IgZG8gSQo+IHVuZGVy c3RhbmQgd2h5IHNuZF9oZGFjX2k5MTVfaW5pdCBoYXMgdG8gYmUgY2FsbGVkIGZyb20gYSB0aHJl YWQKPiBjb250ZXh0LiBJcyB0aGlzIHJlYWxseSBhIHJlcXVpcmVtZW50Pwo+IAo+IEkgYWxzbyBk b24ndCBnZXQgd2hhdCBzb3J0IG9mIHRpbWluZyBpc3N1ZXMgd291bGQgY29tZSBmcm9tIGFuCj4g aW5pdGlhbGl6YXRpb24uIFdoYXQgaGFwcGVucyBvbiB0aGUgaTkxNSBzaWRlIGFuZCBpcyB0aGVy ZSBzb21lIHNvcnQKPiBvZiBtYW5kYXRvcnkgZGVsYXkgYmV0d2VlbiB0aGUgY29tcGxldGlvbiBv ZiB0aGUgaTkxNV9pbml0IGFuZCBpc3N1aW5nCj4gYSBzbmRfaGRhY19jaGlwX3JlYWR3KGJ1cywg U1RBVEVTVFMpIHRvIGdldCB0aGUgY29kZWMgbWFza3Mgb24gdGhlCj4gSERhdWRpbyBsaW5rcz8K CnNuZF9oZGFjX2k5MTVfaW5pdCgpIHdhaXRzIGZvciB0aGUgYmluZGluZyB3aXRoIHRoZSBpOTE1 IGF1ZGlvCmNvbXBvbmVudCwgc28gYSBwb3NzaWJsZSBzb2x1dGlvbiB3b3VsZCBiZSBqdXN0IHRv IGRlbGF5IHRoZSBhdWRpbwpjb21wb25lbnQgcmVnaXN0cmF0aW9uIGF0IHRoZSByZWFsbHkgbGFz dCBzdGFnZSwgbGlrZSB0aGUgY2hhbmdlCmJlbG93LgoKSWYgdGhpcyBzdGlsbCBkb2Vzbid0IHdv cmssIGl0J2xsIGJlIG1vcmUgZGVlcGx5IGluc2lkZSwgYW5kIEkgaGF2ZQpsaXR0bGUgY2x1ZSBm b3Igbm93Li4uCgoKdGhhbmtzLAoKVGFrYXNoaQoKLS0tCmRpZmYgLS1naXQgYS9kcml2ZXJzL2dw dS9kcm0vaTkxNS9pOTE1X2Rydi5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9kcnYuYwot LS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2Rydi5jCisrKyBiL2RyaXZlcnMvZ3B1L2Ry bS9pOTE1L2k5MTVfZHJ2LmMKQEAgLTE1NzcsOCArMTU3Nyw2IEBAIHN0YXRpYyB2b2lkIGk5MTVf ZHJpdmVyX3JlZ2lzdGVyKHN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdikKIAlpZiAo SVNfR0VONShkZXZfcHJpdikpCiAJCWludGVsX2dwdV9pcHNfaW5pdChkZXZfcHJpdik7CiAKLQlp bnRlbF9hdWRpb19pbml0KGRldl9wcml2KTsKLQogCS8qCiAJICogU29tZSBwb3J0cyByZXF1aXJl IGNvcnJlY3RseSBzZXQtdXAgaHBkIHJlZ2lzdGVycyBmb3IgZGV0ZWN0aW9uIHRvCiAJICogd29y ayBwcm9wZXJseSAobGVhZGluZyB0byBnaG9zdCBjb25uZWN0ZWQgY29ubmVjdG9yIHN0YXR1cyks IGUuZy4gVkdBCkBAIC0xNTk3LDYgKzE1OTUsOCBAQCBzdGF0aWMgdm9pZCBpOTE1X2RyaXZlcl9y ZWdpc3RlcihzdHJ1Y3QgZHJtX2k5MTVfcHJpdmF0ZSAqZGV2X3ByaXYpCiAKIAlpbnRlbF9wb3dl cl9kb21haW5zX2VuYWJsZShkZXZfcHJpdik7CiAJaW50ZWxfcnVudGltZV9wbV9lbmFibGUoZGV2 X3ByaXYpOworCisJaW50ZWxfYXVkaW9faW5pdChkZXZfcHJpdik7CiB9CiAKIC8qKgpfX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGlu ZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVl ZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK