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Thu, 28 Jan 2021 12:04:33 +0800 Message-ID: <1611806673.11015.5.camel@mtksdaap41> Subject: Re: [PATCH 2/2] clk: mediatek: mux: Update parent at enable time From: Weiyi Lu To: Laurent Pinchart CC: , Michael Turquette , Stephen Boyd , Matthias Brugger , Phi-Bang Nguyen , Date: Thu, 28 Jan 2021 12:04:33 +0800 In-Reply-To: <20210125170819.26130-3-laurent.pinchart@ideasonboard.com> References: <20210125170819.26130-1-laurent.pinchart@ideasonboard.com> <20210125170819.26130-3-laurent.pinchart@ideasonboard.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-MTK: N Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org T24gTW9uLCAyMDIxLTAxLTI1IGF0IDE5OjA4ICswMjAwLCBMYXVyZW50IFBpbmNoYXJ0IHdyb3Rl Og0KPiBUaGUgbXV4IGNsb2NrcyBkb24ndCBhbHdheXMgY29ycmVjdGx5IHRha2UgdGhlIG5ldyBw YXJlbnQgaW50byBhY2NvdW50DQo+IHdoZW4gdGhlIHBhcmVudCBpcyB1cGRhdGVkIHdoaWxlIHRo ZSBjbG9jayBpcyBkaXNhYmxlZC4gU2V0IHRoZSB1cGRhdGUNCj4gYml0IHdoZW4gZW5hYmxpbmcg dGhlIGNsb2NrIHRvIGZvcmNlIGFuIHVwZGF0ZSBvZiB0aGUgbXV4Lg0KPiANCj4gU2lnbmVkLW9m Zi1ieTogTGF1cmVudCBQaW5jaGFydCA8bGF1cmVudC5waW5jaGFydEBpZGVhc29uYm9hcmQuY29t Pg0KDQpIaSBMYXVyZW50LA0KDQpUaGFuayB5b3UgZm9yIHRoZSBwYXRjaC4gTG9va3MgZ29vZCB0 byBtZS4NClJldmlld2VkLWJ5OiBXZWl5aSBMdSA8d2VpeWkubHVAbWVkaWF0ZWsuY29tPg0KDQo+ IC0tLQ0KPiAgZHJpdmVycy9jbGsvbWVkaWF0ZWsvY2xrLW11eC5jIHwgMzIgKysrKysrKysrKysr KysrKysrKysrKysrKysrKystLS0NCj4gIGRyaXZlcnMvY2xrL21lZGlhdGVrL2Nsay1tdXguaCB8 ICAxICsNCj4gIDIgZmlsZXMgY2hhbmdlZCwgMzAgaW5zZXJ0aW9ucygrKSwgMyBkZWxldGlvbnMo LSkNCj4gDQo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2Nsay9tZWRpYXRlay9jbGstbXV4LmMgYi9k cml2ZXJzL2Nsay9tZWRpYXRlay9jbGstbXV4LmMNCj4gaW5kZXggOTM3MGJlYmNhN2Y4Li5iMGM2 MTcwOWJhY2MgMTAwNjQ0DQo+IC0tLSBhL2RyaXZlcnMvY2xrL21lZGlhdGVrL2Nsay1tdXguYw0K PiArKysgYi9kcml2ZXJzL2Nsay9tZWRpYXRlay9jbGstbXV4LmMNCj4gQEAgLTIwLDkgKzIwLDMz IEBAIHN0YXRpYyBpbmxpbmUgc3RydWN0IG10a19jbGtfbXV4ICp0b19tdGtfY2xrX211eChzdHJ1 Y3QgY2xrX2h3ICpodykNCj4gIHN0YXRpYyBpbnQgbXRrX2Nsa19tdXhfZW5hYmxlX3NldGNscihz dHJ1Y3QgY2xrX2h3ICpodykNCj4gIHsNCj4gIAlzdHJ1Y3QgbXRrX2Nsa19tdXggKm11eCA9IHRv X210a19jbGtfbXV4KGh3KTsNCj4gKwl1bnNpZ25lZCBsb25nIGZsYWdzID0gMDsNCj4gIA0KPiAt CXJldHVybiByZWdtYXBfd3JpdGUobXV4LT5yZWdtYXAsIG11eC0+ZGF0YS0+Y2xyX29mcywNCj4g LQkJCUJJVChtdXgtPmRhdGEtPmdhdGVfc2hpZnQpKTsNCj4gKwlpZiAobXV4LT5sb2NrKQ0KPiAr CQlzcGluX2xvY2tfaXJxc2F2ZShtdXgtPmxvY2ssIGZsYWdzKTsNCj4gKwllbHNlDQo+ICsJCV9f YWNxdWlyZShtdXgtPmxvY2spOw0KPiArDQo+ICsJcmVnbWFwX3dyaXRlKG11eC0+cmVnbWFwLCBt dXgtPmRhdGEtPmNscl9vZnMsDQo+ICsJCSAgICAgQklUKG11eC0+ZGF0YS0+Z2F0ZV9zaGlmdCkp Ow0KPiArDQo+ICsJLyoNCj4gKwkgKiBJZiB0aGUgcGFyZW50IGhhcyBiZWVuIGNoYW5nZWQgd2hl biB0aGUgY2xvY2sgd2FzIGRpc2FibGVkLCBpdCB3aWxsDQo+ICsJICogbm90IGJlIGVmZmVjdGl2 ZSB5ZXQuIFNldCB0aGUgdXBkYXRlIGJpdCB0byBlbnN1cmUgdGhlIG11eCBnZXRzDQo+ICsJICog dXBkYXRlZC4NCj4gKwkgKi8NCj4gKwlpZiAobXV4LT5yZXBhcmVudCAmJiBtdXgtPmRhdGEtPnVw ZF9zaGlmdCA+PSAwKSB7DQo+ICsJCXJlZ21hcF93cml0ZShtdXgtPnJlZ21hcCwgbXV4LT5kYXRh LT51cGRfb2ZzLA0KPiArCQkJICAgICBCSVQobXV4LT5kYXRhLT51cGRfc2hpZnQpKTsNCj4gKwkJ bXV4LT5yZXBhcmVudCA9IGZhbHNlOw0KPiArCX0NCj4gKw0KPiArCWlmIChtdXgtPmxvY2spDQo+ ICsJCXNwaW5fdW5sb2NrX2lycXJlc3RvcmUobXV4LT5sb2NrLCBmbGFncyk7DQo+ICsJZWxzZQ0K PiArCQlfX3JlbGVhc2UobXV4LT5sb2NrKTsNCj4gKw0KPiArCXJldHVybiAwOw0KPiAgfQ0KPiAg DQo+ICBzdGF0aWMgdm9pZCBtdGtfY2xrX211eF9kaXNhYmxlX3NldGNscihzdHJ1Y3QgY2xrX2h3 ICpodykNCj4gQEAgLTc3LDkgKzEwMSwxMSBAQCBzdGF0aWMgaW50IG10a19jbGtfbXV4X3NldF9w YXJlbnRfc2V0Y2xyX2xvY2soc3RydWN0IGNsa19odyAqaHcsIHU4IGluZGV4KQ0KPiAgCQlyZWdt YXBfd3JpdGUobXV4LT5yZWdtYXAsIG11eC0+ZGF0YS0+c2V0X29mcywNCj4gIAkJCQlpbmRleCA8 PCBtdXgtPmRhdGEtPm11eF9zaGlmdCk7DQo+ICANCj4gLQkJaWYgKG11eC0+ZGF0YS0+dXBkX3No aWZ0ID49IDApDQo+ICsJCWlmIChtdXgtPmRhdGEtPnVwZF9zaGlmdCA+PSAwKSB7DQo+ICAJCQly ZWdtYXBfd3JpdGUobXV4LT5yZWdtYXAsIG11eC0+ZGF0YS0+dXBkX29mcywNCj4gIAkJCQkJQklU KG11eC0+ZGF0YS0+dXBkX3NoaWZ0KSk7DQo+ICsJCQltdXgtPnJlcGFyZW50ID0gdHJ1ZTsNCj4g KwkJfQ0KPiAgCX0NCj4gIA0KPiAgCWlmIChtdXgtPmxvY2spDQo+IGRpZmYgLS1naXQgYS9kcml2 ZXJzL2Nsay9tZWRpYXRlay9jbGstbXV4LmggYi9kcml2ZXJzL2Nsay9tZWRpYXRlay9jbGstbXV4 LmgNCj4gaW5kZXggMTVjNjIzNjZiYTlhLi5mMTk0NjE2MWFkZTEgMTAwNjQ0DQo+IC0tLSBhL2Ry aXZlcnMvY2xrL21lZGlhdGVrL2Nsay1tdXguaA0KPiArKysgYi9kcml2ZXJzL2Nsay9tZWRpYXRl ay9jbGstbXV4LmgNCj4gQEAgLTE0LDYgKzE0LDcgQEAgc3RydWN0IG10a19jbGtfbXV4IHsNCj4g IAlzdHJ1Y3QgcmVnbWFwICpyZWdtYXA7DQo+ICAJY29uc3Qgc3RydWN0IG10a19tdXggKmRhdGE7 DQo+ICAJc3BpbmxvY2tfdCAqbG9jazsNCj4gKwlib29sIHJlcGFyZW50Ow0KPiAgfTsNCj4gIA0K PiAgc3RydWN0IG10a19tdXggew0KDQo=