From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: [RFC PATCH] ALSA: core: do not update tstamp when hw ptr has not moved Date: Mon, 20 Nov 2017 14:29:54 +0100 Message-ID: References: <20171116124349.GA21810@lnxhenriken2.se.axis.com> <172e5ff0-472e-be36-0208-5ccc88baebfa@linux.intel.com> <20171120131332.GF5483@lnxhenriken2.se.axis.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: Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by alsa0.perex.cz (Postfix) with ESMTP id 800CF266FEC for ; Mon, 20 Nov 2017 14:29:56 +0100 (CET) In-Reply-To: <20171120131332.GF5483@lnxhenriken2.se.axis.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Henrik Eriksson Cc: alsa-devel@alsa-project.org, Henrik Eriksson , Pierre-Louis Bossart List-Id: alsa-devel@alsa-project.org T24gTW9uLCAyMCBOb3YgMjAxNyAxNDoxMzozMiArMDEwMCwKSGVucmlrIEVyaWtzc29uIHdyb3Rl Ogo+IAo+IE9uIFRodSzCoE5vdsKgMTYswqAyMDE3wqBhdMKgMTk6NDk6MzbCoCswMTAwLCBUYWth c2hpIEl3YWkgd3JvdGU6Cj4gPiBPbiBUaHUsIDE2IE5vdiAyMDE3IDE5OjExOjM3ICswMTAwLAo+ ID4gUGllcnJlLUxvdWlzIEJvc3NhcnQgd3JvdGU6Cj4gPiA+IAo+ID4gPiBPbiAxMS8xNi8xNyA4 OjQ4IEFNLCBUYWthc2hpIEl3YWkgd3JvdGU6Cj4gPiA+ID4gT24gVGh1LCAxNiBOb3YgMjAxNyAx Mzo0Mzo1NyArMDEwMCwKPiA+ID4gPiBIZW5yaWsgRXJpa3Nzb24gd3JvdGU6Cj4gPiA+ID4+Cj4g PiA+ID4+IFRoaXMgcmV2ZXJ0cyBhIGNoYW5nZSB0aGF0IHdhcyBwYXJ0IG9mIGEgbGFyZ2VyIGNv bW1pdC4gIFRoYXQgY2hhbmdlCj4gPiA+ID4+IGJyb2tlIHRpbWVzdGFtcHMgaW4gc29tZSBhcHBs aWNhdGlvbiBjb2RlIGZvciB1cyBhcyBvdXRsaW5lZCBpbiB0aGUgbG9nLAo+ID4gPiA+PiBhbmQg cmV2ZXJ0aW5nIGl0IG9idmlvdXNseSBmaXhlcyB0aGlzLiAgU2luY2UgdGhlIG9yaWdpbmFsIGNo YW5nZSBkaWQKPiA+ID4gPj4gbm90IGV4cGxhaW4gd2h5IHRoZSBiZWhhdmlvdXIgd2FzIG1vZGlm aWVkIEkgY2FuJ3Qgc3BlYWsgZm9yIHRoZSBlZmZlY3RzCj4gPiA+ID4+IG9uIHRoYXQgdXNlIGNh c2UuCj4gCj4gPiA+ID4gU28gdGhpcyBpcyBhIHJlZ3Jlc3Npb24gYW5kIHdlIG5lZWQgdG8gYWRk cmVzcyBpdC4KPiA+ID4gPgo+ID4gPiA+IEkgKmd1ZXNzKiB0aGF0IHRoZSByZWFzb24gdG8gdXBk YXRlIHRzdGFtcCBldmVudCBhdCB0aGUgc2FtZSBod3B0ciBpcwo+ID4gPiA+IHRoYXQgbm93IHdl IGNhbiBnZXQgYSBtb3JlIGZpbmUtZ3JhaW5lZCB0c3RhbXAuICBPVE9ILCB3ZSBoYXZlIHRvCj4g PiA+ID4gYXZvaWQgdGhlIHJlZ3Jlc3Npb24gYnkgdGhhdC4KPiA+ID4gPgo+ID4gPiA+IFdoYXQg YWJvdXQgdGhlICh1bnRlc3RlZCkgcGF0Y2ggbGlrZSBiZWxvdz8gIEl0IHNraXBzIHRoZSB0c3Rh bXAKPiA+ID4gPiB1cGRhdGUgYXMgZGVmYXVsdCBidXQgZm9sbG93cyB0aGUgbmV3IHN0YW5kYXJk IHdoZW4gYSBiZXR0ZXIgdHN0YW1wCj4gPiA+ID4gbW9kZSBpcyBkZXBsb3llZC4KPiA+ID4gCj4g PiA+IHVwZGF0ZV9hdWRpb190c3RhbXAoKSBvbmx5IHVwZGF0ZXMgdGhlIGF1ZGlvIHRpbWVzdGFt cCB3aGVuIHRoZSB0eXBlCj4gPiA+IGlzIERFRkFVTFQgYWxyZWFkeSwgYnV0IGluZGVlZCB1cGRh dGUgcnVudGltZS0+c3RhdHVzLT50c3RhbXAgaXMKPiA+ID4gdXBkYXRlZCB1bmNvbmRpdGlvbmFs bHkuCj4gPiA+IAo+ID4gPiBJIGhhdmUgYSBiaXQgb2YgaGVhcnRidXJuIHdpdGggdGhlIHN1Z2dl c3RlZCBzb2x1dGlvbnMgYmVjYXVzZSB0aGUKPiA+ID4gZGVsYXkgY2FuIGNoYW5nZSBldmVuIHdp dGggdGhlIHNhbWUgaHdfcHRyLiBOb3QgdXBkYXRpbmcgdGhlCj4gPiA+IHRpbWVzdGFtcHMgd291 bGQgYmUgZ29pbmcgYmFjayB0byB0aGUgZGF5cyB3aGVyZSB0aW1pbmcgdXBkYXRlcyB3YXMKPiA+ ID4gZGVwZW5kZW50IG9uIERNQSBncmFudWxhcml0eS4KPiA+ID4gCj4gPiA+IE1heWJlIHdlIGNv dWxkIG1ha2UgdGhlIHRzdGFtcCB1cGRhdGUgZGVwZW5kZW50IG9uIGEgY2hhbmdlIGluCj4gPiA+ IGF1ZGlvX3RzdGFtcCwgZS5nLgo+ID4gPiAKPiA+ID4gCj4gPiA+IGRpZmYgLS1naXQgYS9zb3Vu ZC9jb3JlL3BjbV9saWIuYyBiL3NvdW5kL2NvcmUvcGNtX2xpYi5jCj4gPiA+IGluZGV4IGE5M2E0 MjM1YTMzMi4uYjYwNmYzZWE3YTE3IDEwMDY0NAo+ID4gPiAtLS0gYS9zb3VuZC9jb3JlL3BjbV9s aWIuYwo+ID4gPiArKysgYi9zb3VuZC9jb3JlL3BjbV9saWIuYwo+ID4gPiBAQCAtMjQ4LDggKzI0 OCwxMCBAQCBzdGF0aWMgdm9pZCB1cGRhdGVfYXVkaW9fdHN0YW1wKHN0cnVjdAo+ID4gPiBzbmRf cGNtX3N1YnN0cmVhbSAqc3Vic3RyZWFtLAo+ID4gPiAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgIHJ1bnRpbWUtPnJhdGUpOwo+ID4gPiAgICAgICAgICAgICAgICAgKmF1ZGlvX3RzdGFt cCA9IG5zX3RvX3RpbWVzcGVjKGF1ZGlvX25zZWNzKTsKPiA+ID4gICAgICAgICB9Cj4gPiA+IC0g ICAgICAgcnVudGltZS0+c3RhdHVzLT5hdWRpb190c3RhbXAgPSAqYXVkaW9fdHN0YW1wOwo+ID4g PiAtICAgICAgIHJ1bnRpbWUtPnN0YXR1cy0+dHN0YW1wID0gKmN1cnJfdHN0YW1wOwo+ID4gPiAr ICAgICAgIGlmIChydW50aW1lLT5zdGF0dXMtPmF1ZGlvX3RzdGFtcCAhPSAqYXVkaW9fdHN0YW1w KSB7Cj4gCj4gVGhpcyBzaG91bGQgYmUKPiAKPiBpZiAoIXRpbWVzcGVjX2VxdWFsKCZydW50aW1l LT5zdGF0dXMtPmF1ZGlvX3RzdGFtcCwgYXVkaW9fdHN0YW1wKSkgewo+IAo+ID4gPiArICAgICAg ICAgICAgICAgcnVudGltZS0+c3RhdHVzLT5hdWRpb190c3RhbXAgPSAqYXVkaW9fdHN0YW1wOwo+ ID4gPiArICAgICAgICAgICAgICAgcnVudGltZS0+c3RhdHVzLT50c3RhbXAgPSAqY3Vycl90c3Rh bXA7Cj4gPiA+ICsgICAgICAgfQo+ID4gCj4gPiBPSyBmb3IgbWUgYXMgbG9uZyBhcyBpdCB3b3Jr cy4KPiA+IEhlbnJpaz8KPiAKPiBUaGlzIGFwcGVhcnMgdG8gd29yayBmb3Igb3VyIHVzZSBjYXNl Lgo+IAo+IEhvdyBkbyBJIHByb2dyZXNzIHRoaXMsIGkuZS4sIGRvIEkgdXBkYXRlIG15IHBhdGNo IHRvIHVzZSBQaWVycmUtTG91aXMncwo+IGZpeD8gIEhvdyBzaG91bGQgSSBhdHRyaWJ1dGUgdGhh dD8KCkNhcmUgdG8gdGlkeSB1cCBhbmQgc3VibWl0IGEgcGF0Y2ggd2l0aCBzb21lIG5pY2UgZGVz Y3JpcHRpb24/CllvdSBjYW4gcHV0IFBpZXJyZSdzIGNyZWRpdCBsaWtlCiAgU3VnZ2VzdGVkLWJ5 OiBQaWVycmUtTG91aXMgQm9zc2FydCA8cGllcnJlLWxvdWlzLmJvc3NhcnRAbGludXguaW50ZWwu Y29tPgoKCnRoYW5rcywKClRha2FzaGkKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX18KQWxzYS1kZXZlbCBtYWlsaW5nIGxpc3QKQWxzYS1kZXZlbEBhbHNhLXBy b2plY3Qub3JnCmh0dHA6Ly9tYWlsbWFuLmFsc2EtcHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5m by9hbHNhLWRldmVsCg==