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Thu, 4 Jun 2020 10:35:40 +0800 Message-ID: <1591238018.8804.555.camel@mhfsdcap03> Subject: Re: [V6, 2/2] media: i2c: dw9768: Add DW9768 VCM driver From: Dongchun Zhu To: Tomasz Figa CC: Linus Walleij , Bartosz Golaszewski , Mauro Carvalho Chehab , Andy Shevchenko , Rob Herring , Mark Rutland , Sakari Ailus , Nicolas Boichat , Matthias Brugger , Cao Bing Bu , srv_heupstream , "moderated list:ARM/Mediatek SoC support" , "list@263.net:IOMMU DRIVERS , Joerg Roedel ," , Sj Huang , Linux Media Mailing List , linux-devicetree , Louis Kuo , "Shengnan Wang =?UTF-8?Q?=28=E7=8E=8B=E5=9C=A3=E7=94=B7=29?=" , Date: Thu, 4 Jun 2020 10:33:38 +0800 In-Reply-To: References: <20200518132731.20855-1-dongchun.zhu@mediatek.com> <20200518132731.20855-3-dongchun.zhu@mediatek.com> <20200521195113.GC14214@chromium.org> <1590139561.8804.390.camel@mhfsdcap03> <1590570089.8804.453.camel@mhfsdcap03> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-TM-SNTS-SMTP: F86C0FCDB567B5C188A65FAB2CBC0E5B52353EFA00CBAB634B239ED5B17F119F2000:8 X-MTK: N Content-Transfer-Encoding: base64 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org SGkgVG9tYXN6LA0KDQpPbiBNb24sIDIwMjAtMDYtMDEgYXQgMjA6NDcgKzAyMDAsIFRvbWFzeiBG aWdhIHdyb3RlOg0KPiBPbiBXZWQsIE1heSAyNywgMjAyMCBhdCAxMTowMyBBTSBEb25nY2h1biBa aHUgPGRvbmdjaHVuLnpodUBtZWRpYXRlay5jb20+IHdyb3RlOg0KPiA+DQo+ID4gSGkgVG9tYXN6 LA0KPiA+DQo+ID4gT24gTW9uLCAyMDIwLTA1LTI1IGF0IDEzOjQ1ICswMjAwLCBUb21hc3ogRmln YSB3cm90ZToNCj4gPiA+IE9uIEZyaSwgTWF5IDIyLCAyMDIwIGF0IDExOjI3IEFNIERvbmdjaHVu IFpodSA8ZG9uZ2NodW4uemh1QG1lZGlhdGVrLmNvbT4gd3JvdGU6DQo+ID4gPiA+DQo+ID4gPiA+ IEhpIFRvbWFzeiwNCj4gPiA+ID4NCj4gPiA+ID4gVGhhbmtzIGZvciB0aGUgcmV2aWV3LiBNeSBy ZXBsaWVzIGFyZSBhcyBiZWxvdy4NCj4gPiA+ID4NCj4gPiA+ID4gT24gVGh1LCAyMDIwLTA1LTIx IGF0IDE5OjUxICswMDAwLCBUb21hc3ogRmlnYSB3cm90ZToNCj4gPiA+ID4gPiBIaSBEb25nY2h1 biwgU2FrYXJpLA0KPiA+ID4gPiA+DQo+ID4gPiA+ID4gT24gTW9uLCBNYXkgMTgsIDIwMjAgYXQg MDk6Mjc6MzFQTSArMDgwMCwgRG9uZ2NodW4gWmh1IHdyb3RlOg0KPiA+ID4gW3NuaXBdDQo+ID4g PiA+ID4gPiArICAgcG1fcnVudGltZV9lbmFibGUoZGV2KTsNCj4gPiA+ID4gPiA+ICsgICBpZiAo IXBtX3J1bnRpbWVfZW5hYmxlZChkZXYpKSB7DQo+ID4gPiA+ID4gPiArICAgICAgICAgICByZXQg PSBkdzk3NjhfcnVudGltZV9yZXN1bWUoZGV2KTsNCj4gPiA+ID4gPiA+ICsgICAgICAgICAgIGlm IChyZXQgPCAwKSB7DQo+ID4gPiA+ID4gPiArICAgICAgICAgICAgICAgICAgIGRldl9lcnIoZGV2 LCAiZmFpbGVkIHRvIHBvd2VyIG9uOiAlZFxuIiwgcmV0KTsNCj4gPiA+ID4gPiA+ICsgICAgICAg ICAgICAgICAgICAgZ290byBlbnRpdHlfY2xlYW51cDsNCj4gPiA+ID4gPiA+ICsgICAgICAgICAg IH0NCj4gPiA+ID4gPiA+ICsgICB9DQo+ID4gPiA+ID4gPiArDQo+ID4gPiA+ID4gPiArICAgcmV0 ID0gdjRsMl9hc3luY19yZWdpc3Rlcl9zdWJkZXYoJmR3OTc2OC0+c2QpOw0KPiA+ID4gPiA+ID4g KyAgIGlmIChyZXQgPCAwKQ0KPiA+ID4gPiA+ID4gKyAgICAgICAgICAgZ290byBlbnRpdHlfY2xl YW51cDsNCj4gPiA+ID4gPiA+ICsNCj4gPiA+ID4gPiA+ICsgICByZXR1cm4gMDsNCj4gPiA+ID4g PiA+ICsNCj4gPiA+ID4gPiA+ICtlbnRpdHlfY2xlYW51cDoNCj4gPiA+ID4gPg0KPiA+ID4gPiA+ IE5lZWQgdG8gcG93ZXIgb2ZmIGlmIHRoZSBjb2RlIGFib3ZlIHBvd2VyZWQgb24uDQo+ID4gPiA+ ID4NCj4gPiA+ID4NCj4gPiA+ID4gVGhhbmtzIGZvciB0aGUgcmVtaW5kZXIuDQo+ID4gPiA+IElm IHRoZXJlIGlzIHNvbWV0aGluZyB3cm9uZyB3aXRoIHJ1bnRpbWUgUE0sIGFjdHVhdG9yIGlzIHRv IGJlIHBvd2VyZWQNCj4gPiA+ID4gb24gdmlhIGR3OTc2OF9ydW50aW1lX3Jlc3VtZSgpIEFQSS4N Cj4gPiA+ID4gV2hlbiBhY3R1YXRvciBzdWItZGV2aWNlIGlzIHBvd2VyZWQgb24gY29tcGxldGVs eSBhbmQgYXN5bmMgcmVnaXN0ZXJlZA0KPiA+ID4gPiBzdWNjZXNzZnVsbHksIHdlIHNoYWxsIHBv d2VyIG9mZiBpdCBhZnRlcndhcmRzLg0KPiA+ID4gPg0KPiA+ID4NCj4gPiA+IFRoZSBjb2RlIGFi b3ZlIGNhbGxzIGR3OTc2OF9ydW50aW1lX3Jlc3VtZSgpIGlmDQo+ID4gPiAhcG1fcnVudGltZV9l bmFibGVkKGRldiksIGJ1dCB0aGUgY2xlYW4tdXAgY29kZSBiZWxvdyB0aGUNCj4gPiA+IGVudGl0 eV9jbGVhbnVwIGxhYmVsIGRvZXNuJ3QgaGF2ZSB0aGUgY29ycmVzcG9uZGluZw0KPiA+ID4gZHc5 NzY4X3J1bnRpbWVfc3VzcGVuZCgpIGNhbGwuDQo+ID4gPg0KPiA+DQo+ID4gRGlkIHlvdSBtZWFu IHRoZSAnZW50aXR5X2NsZWFudXAnIGFmdGVyIHY0bDJfYXN5bmNfcmVnaXN0ZXJfc3ViZGV2KCk/ DQo+IA0KPiBZZXMuDQo+IA0KPiA+IEFjdHVhbGx5IEkgbWFkZSBzb21lIGNoYW5nZXMgZm9yIE9W MDJBIFY5LCBhY2NvcmRpbmcgdG8gdGhpcyBjb21tZW50Lg0KPiA+IENvdWxkIHlvdSBoZWxwIHJl dmlldyB0aGF0IGNoYW5nZT8gVGhhbmtzLg0KPiANCj4gU3VyZSwgSSB3aWxsIHRha2UgYSBsb29r Lg0KPiANCg0KVGhhbmtzLg0KU29ycnksIEkganVzdCB3YW5uYSBtYWtlIHN1cmUgdGhlIGNoYW5n ZSBpcyBva2F5IGZvciBuZXh0IHJlbGVhc2UuDQpNYXkgd2UgdXNlIHRoZSBjaGVjayBsaWtlIE9W MDJBIFY5IGRpZD8NCnJldCA9IHY0bDJfYXN5bmNfcmVnaXN0ZXJfc3ViZGV2KCZkdzk3NjgtPnNk KTsNCmlmIChyZXQgPCAwKSB7DQoJaWYgKCFwbV9ydW50aW1lX2VuYWJsZWQoZGV2KSkNCgkJZHc5 NzY4X3J1bnRpbWVfc3VzcGVuZChkZXYpOw0KCWdvdG8gZW50aXR5X2NsZWFudXA7DQp9DQoNCj4g QmVzdCByZWdhcmRzLA0KPiBUb21hc3oNCg0K