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b=ZO6/FWDAr38eGqj49jBGMpzmVP61WBxI+2QqvGqfd1IZqmcbyuuPO3gsILOUyU/DE FOxbRK9SK/QY4HLGrd8IXExDR0WGslMq8R9/1Vi9Cuk1loxrhC5qznfOTeBk1D6tSe 229BNm14HnaqpvX2AAkpQQyWPHbMEcG5zkSQmfTg= Date: Thu, 5 Sep 2019 16:35:09 -0500 From: Bjorn Helgaas To: Kai-Heng Feng Message-ID: <20190905213509.GI103977@google.com> References: <20190827134756.10807-2-kai.heng.feng@canonical.com> <20190828180128.1732-1-kai.heng.feng@canonical.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190828180128.1732-1-kai.heng.feng@canonical.com> User-Agent: Mutt/1.10.1 (2018-07-13) Cc: linux-pci@vger.kernel.org, alsa-devel@alsa-project.org, tiwai@suse.com, linux-kernel@vger.kernel.org Subject: Re: [alsa-devel] [PATCH v2 2/2] ALSA: hda: Allow HDA to be runtime suspended when dGPU is not bound X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" T24gVGh1LCBBdWcgMjksIDIwMTkgYXQgMDI6MDE6MjhBTSArMDgwMCwgS2FpLUhlbmcgRmVuZyB3 cm90ZToKPiBJdCdzIGEgY29tbW9uIHByYWN0aWNlIHRvIGxldCBkR1BVIHVuYm91bmQgYW5kIHVz ZSBQQ0kgcGxhdGZvcm0gcG93ZXIKPiBtYW5hZ2VtZW50IHRvIGRpc2FibGUgaXRzIHBvd2VyIHRo cm91Z2ggX09GRiBtZXRob2Qgb2YgcG93ZXIgcmVzb3VyY2UsCj4gd2hpY2ggaXMgbGlzdGVkIGJ5 IF9QUjMuCj4gV2hlbiB0aGUgZEdQVSBjb21lcyB3aXRoIGFuIEhEQSBmdW5jdGlvbiwgdGhlIEhE QSB3b24ndCBiZSBzdXNwZW5kZWQgaWYKPiB0aGUgZEdQVSBpcyB1bmJvdW5kLCBzbyB0aGUgcG93 ZXIgcmVzb3VyY2UgY2FuJ3QgYmUgdHVybmVkIG9mZi4KCkknbSBub3QgaW52b2x2ZWQgaW4gYXBw bHlpbmcgdGhpcyBwYXRjaCwgYnV0IGZyb20gdGhlIHBlYW51dCBnYWxsZXJ5OgoKICAtIFRoZSBh Ym92ZSBsb29rcyBsaWtlIGl0IG1pZ2h0IGJlIHR3byBwYXJhZ3JhcGhzIG1pc3NpbmcgYSBibGFu awogICAgbGluZSBiZXR3ZWVuPyAgT3IgbWF5YmUgaXQncyBvbmUgcGFyYWdyYXBoIHRoYXQgbmVl ZHMgdG8gYmUKICAgIHJld3JhcHBlZD8KCiAgLSBJIGNhbid0IHBhcnNlIHRoZSBmaXJzdCBzZW50 ZW5jZS4gIEkgZ3Vlc3MgImRHUFUiIGFuZCAiSERBIiBhcmUKICAgIGhhcmR3YXJlIGRldmljZXMs IGJ1dCBJIGRvbid0IGtub3cgd2hhdCAidW5ib3VuZCIgbWVhbnMuICBJcyB0aGF0CiAgICBzb21l dGhpbmcgdG8gZG8gd2l0aCBhIGRyaXZlciBiZWluZyBib3VuZCB0byB0aGUgZEdQVT8gIE9yIGlz IGl0CiAgICBzb21lIGNvbm5lY3Rpb24gYmV0d2VlbiB0aGUgZEdQVSBhbmQgdGhlIEhEQT8KCiAg LSAiUENJIHBsYXRmb3JtIHBvd2VyIG1hbmFnZW1lbnQiIGlzIHN0aWxsIGNvbmZ1c2luZyAtLSBJ IHRoaW5rIHdlCiAgICBlaXRoZXIgaGF2ZSAiUENJIHBvd2VyIG1hbmFnZW1lbnQiIHRoYXQgdXNl cyB0aGUgUENJIFBNIENhcGFiaWxpdHkKICAgIChpLmUuLCB3cml0aW5nIFBDSV9QTV9DVFJMIGFz IGluIHBjaV9yYXdfc2V0X3Bvd2VyX3N0YXRlKCkpIE9SIHdlCiAgICBoYXZlICJwbGF0Zm9ybSBw b3dlciBtYW5hZ2VtZW50IiB0aGF0IHVzZXMgc29tZSBvdGhlciBtZXRob2QsCiAgICB0eXBpY2Fs bHkgQUNQSS4gIFNpbmNlIHlvdSByZWZlciB0byBfT0ZGIGFuZCBfUFIzLCBJIGd1ZXNzIHlvdSdy ZQogICAgcmVmZXJyaW5nIHRvIHBsYXRmb3JtIHBvd2VyIG1hbmFnZW1lbnQgaGVyZS4KCiAgLSAi SXQncyBjb21tb24gcHJhY3RpY2UgdG8gbGV0IGRHUFUgdW5ib3VuZCIgLS0gZG9lcyB0aGF0IHJl ZmVyIHRvCiAgICBzb21lIHByb2dyYW1taW5nIHRlY2huaXF1ZSBjb21tb24gaW4gZHJpdmVycywg b3Igc29tZSB1c2VyLWxldmVsCiAgICB0aGluZyBsaWtlIHVubG9hZGluZyBhIGRyaXZlciwgb3Ig Li4uPyAgTXkgZ3Vlc3MgaXMgaXQgcHJvYmFibHkKICAgIG1lYW5zICJ1bmJpbmQgdGhlIGRyaXZl ciBmcm9tIHRoZSBkR1BVIiBidXQgSSBzdGlsbCBkb24ndCBrbm93CiAgICB3aGF0IG1ha2VzIGl0 IGNvbW1vbiBwcmFjdGljZS4KClRoaXMgcHJvYmFibHkgYWxsIG1ha2VzIHBlcmZlY3Qgc2Vuc2Ug dG8gdGhlIGdyYXBoaWNzIGNvZ25vc2NlbnRpLCBidXQKZm9yIHRoZSByZXN0IG9mIHVzIHRoZXJl IGFyZSBhIGxvdCBvZiBkb3RzIGhlcmUgdGhhdCBhcmUgbm90CmNvbm5lY3RlZC4KCj4gQ29tbWl0 IDM3YTNhOThlZjYwMSAoIkFMU0E6IGhkYSAtIEVuYWJsZSBydW50aW1lIFBNIG9ubHkgZm9yCj4g ZGlzY3JldGUgR1BVIikgb25seSBhbGxvd3MgSERBIHRvIGJlIHJ1bnRpbWUtc3VzcGVuZGVkIG9u Y2UgR1BVIGlzCj4gYm91bmQsIHRvIGtlZXAgQVBVJ3MgSERBIHdvcmtpbmcuCj4gCj4gSG93ZXZl ciwgSERBIG9uIGRHUFUgaXNuJ3QgdGhhdCB1c2VmdWwgaWYgZEdQVSBpcyB1bmJvdW5kLiBTbyBs ZXQncwo+IHJlbGF4IHRoZSBydW50aW1lIHN1c3BlbmQgcmVxdWlyZW1lbnQgZm9yIGRHUFUncyBI REEgZnVuY3Rpb24sIHRvIHNhdmUKPiBsb3RzIG9mIHBvd2VyLgo+IAo+IEJ1Z0xpbms6IGh0dHBz Oi8vYnVncy5sYXVuY2hwYWQubmV0L2J1Z3MvMTg0MDgzNQo+IEZpeGVzOiBiNTE2ZWE1ODZkNzEg KCJQQ0k6IEVuYWJsZSBOVklESUEgSERBIGNvbnRyb2xsZXJz4oCdKQo+IFNpZ25lZC1vZmYtYnk6 IEthaS1IZW5nIEZlbmcgPGthaS5oZW5nLmZlbmdAY2Fub25pY2FsLmNvbT4KPiAtLS0KPiB2MjoK PiAtIENoYW5nZSB3b3JkaW5nLgo+IC0gUmViYXNlIHRvIFRpd2FpJ3MgYnJhbmNoLgo+IAo+ICBz b3VuZC9wY2kvaGRhL2hkYV9pbnRlbC5jIHwgNiArKysrKy0KPiAgMSBmaWxlIGNoYW5nZWQsIDUg aW5zZXJ0aW9ucygrKSwgMSBkZWxldGlvbigtKQo+IAo+IGRpZmYgLS1naXQgYS9zb3VuZC9wY2kv aGRhL2hkYV9pbnRlbC5jIGIvc291bmQvcGNpL2hkYS9oZGFfaW50ZWwuYwo+IGluZGV4IDkxZTcx YmU0MmZhNC4uYzM2NTRkMjI3OTVhIDEwMDY0NAo+IC0tLSBhL3NvdW5kL3BjaS9oZGEvaGRhX2lu dGVsLmMKPiArKysgYi9zb3VuZC9wY2kvaGRhL2hkYV9pbnRlbC5jCj4gQEAgLTEyODQsNyArMTI4 NCwxMSBAQCBzdGF0aWMgdm9pZCBpbml0X3ZnYV9zd2l0Y2hlcm9vKHN0cnVjdCBhenggKmNoaXAp Cj4gIAkJZGV2X2luZm8oY2hpcC0+Y2FyZC0+ZGV2LAo+ICAJCQkgIkhhbmRsZSB2Z2Ffc3dpdGNo ZXJvbyBhdWRpbyBjbGllbnRcbiIpOwo+ICAJCWhkYS0+dXNlX3ZnYV9zd2l0Y2hlcm9vID0gMTsK PiAtCQljaGlwLT5idXMua2VlcF9wb3dlciA9IDE7IC8qIGNsZWFyZWQgaW4gZWl0aGVyIGdwdV9i b3VuZCBvcCBvciBjb2RlYyBwcm9iZSAqLwo+ICsKPiArCQkvKiBjbGVhcmVkIGluIGVpdGhlciBn cHVfYm91bmQgb3Agb3IgY29kZWMgcHJvYmUsIG9yIHdoZW4gaXRzCj4gKwkJICogcm9vdCBwb3J0 IGhhcyBfUFIzIChpLmUuIGRHUFUpLgo+ICsJCSAqLwo+ICsJCWNoaXAtPmJ1cy5rZWVwX3Bvd2Vy ID0gIXBjaV9wcjNfcHJlc2VudChwKTsKPiAgCQljaGlwLT5kcml2ZXJfY2FwcyB8PSBBWlhfRENB UFNfUE1fUlVOVElNRTsKPiAgCQlwY2lfZGV2X3B1dChwKTsKPiAgCX0KPiAtLSAKPiAyLjE3LjEK PiAKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KQWxzYS1k ZXZlbCBtYWlsaW5nIGxpc3QKQWxzYS1kZXZlbEBhbHNhLXByb2plY3Qub3JnCmh0dHBzOi8vbWFp bG1hbi5hbHNhLXByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8vYWxzYS1kZXZlbAo=