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[91.98.36.253]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49268fc0f32sm321549885e9.3.2026.06.29.07.48.01 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 29 Jun 2026 07:48:04 -0700 (PDT) Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3864.600.51.1.1\)) Subject: Re: [PATCH] ASoC: meson: aiu: fifo-spdif: soft reset the S/PDIF datapath on start/stop From: Christian Hewitt In-Reply-To: <1jwlvha6xv.fsf@starbuckisacylon.baylibre.com> Date: Mon, 29 Jun 2026 18:47:44 +0400 Cc: Martin Blumenstingl , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Neil Armstrong , Kevin Hilman , linux-sound@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org Message-Id: References: <20260626080422.4191435-1-christianshewitt@gmail.com> <1jwlvha6xv.fsf@starbuckisacylon.baylibre.com> To: Jerome Brunet X-Mailer: Apple Mail (2.3864.600.51.1.1) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260629_074807_299736_3666EC4A X-CRM114-Status: GOOD ( 17.25 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org PiBPbiAyOSBKdW4gMjAyNiwgYXQgNDowNOKAr3BtLCBKZXJvbWUgQnJ1bmV0IDxqYnJ1bmV0QGJh eWxpYnJlLmNvbT4gd3JvdGU6Cj4gCj4gT24gdmVuLiAyNiBqdWluIDIwMjYgYXQgMjI6NDEsIE1h cnRpbiBCbHVtZW5zdGluZ2wgPG1hcnRpbi5ibHVtZW5zdGluZ2xAZ29vZ2xlbWFpbC5jb20+IHdy b3RlOgo+IAo+PiBPbiBGcmksIEp1biAyNiwgMjAyNiBhdCAxMDowNOKAr0FNIENocmlzdGlhbiBI ZXdpdHQKPj4gPGNocmlzdGlhbnNoZXdpdHRAZ21haWwuY29tPiB3cm90ZToKPj4+IAo+Pj4gVGhl IEkyUyBGSUZPIHNvZnQtcmVzZXRzIGl0cyBmYXN0IGRvbWFpbiBvbiBzdGFydCAoQUlVX1JTVF9T T0ZUIGJpdCAwICsKPj4+IEFJVV9JMlNfU1lOQyByZWFkIGluIGFpdV9maWZvX2kyc190cmlnZ2Vy KSwgbWlycm9yaW5nIHRoZSBkb3duc3RyZWFtCj4+PiB2ZW5kb3IgZHJpdmVyJ3MgYXVkaW9fb3V0 X2kyc19lbmFibGUoKS4gVGhlIFMvUERJRiBGSUZPIGhhcyBubyBlcXVpdmFsZW50Ogo+Pj4gaXQg b25seSB0b2dnbGVzIHRoZSBJRUM5NTggRENVLCBzbyBhIHN0YWxlIGRhdGFwYXRoIEZJRk8gY2Fu IGJlIHJlcGxheWVkLAo+Pj4gcHJvZHVjaW5nIHRoZSAibWFjaGluZSBndW4gbm9pc2UiIGJ1ZmZl ciB1bmRlcnJ1biAtIG9uIHN0YXJ0IHdoZW4gc3dpdGNoaW5nCj4+PiBvdXRwdXRzLCBhbmQgb24g c3RvcCB3aGVuIHBsYXliYWNrIGVuZHMuIFRoZSBsYXR0ZXIgaXMgYXVkaWJsZSBvbiBkZXZpY2Vz Cj4+PiB3aXRoIGFuIGFsd2F5cy1vbiBTL1BESUYtZmVkIERBQyAoZS5nLiB0aGUgRVM3MTQ0IG9u IHRoZSBXZVRlayBQbGF5MikuCj4+PiAKPj4+IFRoZSB2ZW5kb3IgZHJpdmVyIHJlc2V0cyB0aGUg SUVDOTU4IGZhc3QgZG9tYWluIChBSVVfUlNUX1NPRlQgYml0IDIpIG9uCj4+PiBib3RoIGVuYWJs ZSBhbmQgZGlzYWJsZSAoYXVkaW9faHdfOTU4X2VuYWJsZSksIGFuZCB3aGVuIHJlY29uZmlndXJp bmcKPj4+IChhdWRpb19od185NThfcmVzZXQgY2xlYXJzIEFJVV85NThfRENVX0ZGX0NUUkwgdGhl biByZXNldHMpLiBEbyB0aGUgc2FtZToKPj4+IHJlc2V0IGJlZm9yZSBlbmFibGluZyB0aGUgRENV IG9uIHN0YXJ0LCBhbmQgYWZ0ZXIgZGlzYWJsaW5nIGl0IG9uIHN0b3AuCj4+PiAKPj4+IFNpZ25l ZC1vZmYtYnk6IENocmlzdGlhbiBIZXdpdHQgPGNocmlzdGlhbnNoZXdpdHRAZ21haWwuY29tPgo+ PiBSZXZpZXdlZC1ieTogTWFydGluIEJsdW1lbnN0aW5nbCA8bWFydGluLmJsdW1lbnN0aW5nbEBn b29nbGVtYWlsLmNvbT4KPj4gCj4+IFRoaXMgbWF0Y2hlcyB0aGUgdmVuZG9yIGRyaXZlciwgcmVm ZXJlbmNlczoKPj4gLSBmYXN0LXJlc2V0IFNQRElGIGlzIHRyaWdnZXJlZCBvbiBlbmFibGUgYW5k IGRpc2FibGU6IFswXQo+PiAtIGZhc3QtcmVzZXQgU1BESUYgaXMgdHJpZ2dlcmVkIGFmdGVyIGFs bCBvZiB0aGUgY29uZmlndXJhdGlvbiBpcwo+PiB3cml0dGVuLCB0aGVuIERDVV9GRl9DVFJMIGlz IGVuYWJsZWQ6IFsxXQo+IAo+IFRha2Ugd2hhdCB0aGUgdmVuZG9yIGRyaXZlciBkb2VzIHdpdGgg YSBncmFpbiBvZiBzYWx0LCBlc3BlY2lhbGx5IHdoZW4KPiBpdCBjb21lcyB0byBhdWRpbwo+IAo+ PiAKPj4gWy4uLl0KPj4+ICAgICAgICBjYXNlIFNORFJWX1BDTV9UUklHR0VSX1NVU1BFTkQ6Cj4+ PiAgICAgICAgY2FzZSBTTkRSVl9QQ01fVFJJR0dFUl9QQVVTRV9QVVNIOgo+Pj4gICAgICAgIGNh c2UgU05EUlZfUENNX1RSSUdHRVJfU1RPUDoKPj4+ICAgICAgICAgICAgICAgIGZpZm9fc3BkaWZf ZGN1X2VuYWJsZShjb21wb25lbnQsIGZhbHNlKTsKPj4+ICsgICAgICAgICAgICAgICBzbmRfc29j X2NvbXBvbmVudF93cml0ZShjb21wb25lbnQsIEFJVV9SU1RfU09GVCwKPj4+ICsgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICBBSVVfUlNUX1NPRlRfOTU4X0ZBU1QpOwo+PiBJ dCBkb2Vzbid0IHNlZW0gdG8gbWFrZSBhbnkgZGlmZmVyZW5jZSwgc28ganVzdCBmb3IgdGhlIHJl Y29yZDoKPj4gVGhlIHZlbmRvciBkcml2ZXIgZmlyc3QgdHJpZ2dlcnMgQUlVX1JTVF9TT0ZUXzk1 OF9GQVNUIHRoZW4gZGlzYWJsZXMgRENVOiBbMl0KPj4gCj4gCj4gT25lIGNvdWxkIGV2ZW4gd29u ZGVyIGlmIHRoZXJlIGlzIGFueSBwb2ludCBpbiBhcHBseWluZyBhIHJlc2V0IHdoZW4KPiBldmVy eXRoaW5nIGlzIHN0b3BwZWQsIGlmIHRoZSBlbmFibGUgcGF0aCB3aWxsIGFwcGx5IHRoaXMgc2Ft ZQo+IHJlc2V0IGJlZm9yZSBhbnl0aGluZyBlbHNlIGlzIHN0YXJ0ZWQgYWdhaW4gPyBEb2VzIGl0 IHJlYWxseSBjaGFuZ2VzCj4gYW55dGhpbmcgdG8gdGhlIHJlcG9ydGVkIGlzc3VlID8KClVzaW5n IGRpc2FibGUvcmVzZXQgb3IgcmVzZXQvZGlzYWJsZSBkaWRu4oCZdCBtYWtlIGFueSBkaWZmZXJl bmNlIGluIG15CnRlc3RpbmcsIGJ1dCB3aXRob3V0IGFueSByZXNldCBwbGF5YmFjayBzdG9wIG9u IHRoZSBXZVRlayBQbGF5MiBib2FyZAp3aXRoIGhhcmR3aXJlZCBEQUMgYWx3YXlzIHRyaWdnZXJz IHRoZSBidWZmZXIgdW5kZXJydW4uCgpDSC4KCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fXwpsaW51eC1hbWxvZ2ljIG1haWxpbmcgbGlzdApsaW51eC1hbWxv Z2ljQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1h bi9saXN0aW5mby9saW51eC1hbWxvZ2ljCg==