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Thu, 10 Dec 2020 09:56:28 +0800 Message-ID: <1607565387.25719.43.camel@mhfsdcap03> Subject: Re: [v2] i2c: mediatek: Move suspend and resume handling to NOIRQ phase From: Qii Wang To: Grygorii Strashko CC: Wolfram Sang , , , , , , , Date: Thu, 10 Dec 2020 09:56:27 +0800 In-Reply-To: References: <1605701861-30800-1-git-send-email-qii.wang@mediatek.com> <20201202153543.GG874@kunai> <1606958735.25719.29.camel@mhfsdcap03> <629d171a-0e77-3d74-ae23-e6439dcf17b7@ti.com> <1607326431.25719.33.camel@mhfsdcap03> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-TM-SNTS-SMTP: D5CC06C8C52DF99D9DD1A87BD89711539F70665F1A7AD3104CF2DF15F1E603BC2000:8 X-MTK: N Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org T24gTW9uLCAyMDIwLTEyLTA3IGF0IDE4OjM1ICswMjAwLCBHcnlnb3JpaSBTdHJhc2hrbyB3cm90 ZToNCj4gDQo+ID4gDQo+ID4gT24gVGh1LCAyMDIwLTEyLTAzIGF0IDEwOjAxICswMjAwLCBHcnln b3JpaSBTdHJhc2hrbyB3cm90ZToNCj4gPj4NCj4gPj4gT24gMDMvMTIvMjAyMCAwMzoyNSwgUWlp IFdhbmcgd3JvdGU6DQo+ID4+PiBPbiBXZWQsIDIwMjAtMTItMDIgYXQgMTY6MzUgKzAxMDAsIFdv bGZyYW0gU2FuZyB3cm90ZToNCj4gPj4+PiBIaSwNCj4gPj4+Pg0KPiA+Pj4+PiBTb21lIGkyYyBk ZXZpY2UgZHJpdmVyIGluZGlyZWN0bHkgdXNlcyBJMkMgZHJpdmVyIHdoZW4gaXQgaXMgbm93DQo+ ID4+Pj4+IGJlaW5nIHN1c3BlbmRlZC4gVGhlIGkyYyBkZXZpY2VzIGRyaXZlciBpcyBzdXNwZW5k ZWQgZHVyaW5nIHRoZQ0KPiA+Pj4+PiBOT0lSUSBwaGFzZSBhbmQgdGhpcyBjYW5ub3QgYmUgY2hh bmdlZCBkdWUgdG8gb3RoZXIgZGVwZW5kZW5jaWVzLg0KPiA+Pj4+PiBUaGVyZWZvcmUsIHdlIGFs c28gbmVlZCB0byBtb3ZlIHRoZSBzdXNwZW5kIGhhbmRsaW5nIGZvciB0aGUgSTJDDQo+ID4+Pj4+ IGNvbnRyb2xsZXIgZHJpdmVyIHRvIHRoZSBOT0lSUSBwaGFzZSBhcyB3ZWxsLg0KPiA+Pj4+Pg0K PiA+Pj4+PiBTaWduZWQtb2ZmLWJ5OiBRaWkgV2FuZyA8cWlpLndhbmdAbWVkaWF0ZWsuY29tPg0K PiA+Pj4+DQo+ID4+Pj4gSXMgdGhpcyBhIGJ1Z2ZpeCBhbmQgc2hvdWxkIGdvIGludG8gNS4xMD8g T3IgY2FuIGl0IHdhaXQgZm9yIDUuMTE/DQo+ID4+Pj4NCj4gPj4+DQo+ID4+PiBZZXMsIENhbiB5 b3UgaGVscCB0byBhcHBseSBpdCBpbnRvIDUuMTA/IFRoYW5rcw0KPiA+Pg0KPiA+PiBUbyBiZSBo b25lc3QgaWYgeW91IHN0aWxsIGRvIGhhdmUgYW55IGkyYyBkZXZpY2Ugd2hpY2ggYWNjZXNzaW5n IGkyYyBidXNzIGFmdGVyIF9ub2lycQ0KPiA+PiBzdGFnZSBhbmQgeW91ciBkcml2ZXIgZG9lcyBu b3QgaW1wbGVtZW50IC5tYXN0ZXJfeGZlcl9hdG9taWMoKSAtIHlvdSBkZWZpbml0ZWx5IGhhdmUg YSBiaWdnZXIgcHJvYmxlbS4NCj4gPj4gU28gYWRkaW5nIElSUUZfTk9fU1VTUEVORCBzb3VuZCBs aWtlIGEgaGFjayBhbmQgcHJvYmFibHkgd29ya3MganVzdCBieSBsdWNrLg0KPiA+Pg0KPiA+IA0K PiA+IEF0IHByZXNlbnQsIGl0IGlzIG9ubHkgYSBwcm9ibGVtIGNhdXNlZCBieSBtaXNzaW5nIGlu dGVycnVwdHMsDQo+ID4gYW5kIC5tYXN0ZXJfeGZlcl9hdG9taWMoKSBqdXN0IGEgaW1wbGVtZW50 IGluIHBvbGxpbmcgbW9kZS4gV2h5IG5vdCBzZXQNCj4gPiB0aGUgaW50ZXJydXB0IHRvIGEgc3Rh dGUgdGhhdCBjYW4gYWx3YXlzIGJlIHRyaWdnZXJlZD8NCj4gPiANCj4gPiANCj4gDQo+IEJlY2F1 c2UgeW91IG11c3Qgbm90IHVzZSBhbnkgSVJRIGRyaXZlbiBvcGVyYXRpb25zIGFmdGVyIF9ub2ly cSBzdXNwZW5kIHN0YXRlIGFzIGl0IG1pZ2h0IChhbmQgbW9zdCBwcm9iYWJseSB3aWxsKQ0KPiBj YXVzZSB1bnByZWRpY3RhYmxlIGJlaGF2aW9yIGxhdGVyICBpbiBzdXNwZW5kX2VudGVyKCk6DQo+ IA0KPiAJYXJjaF9zdXNwZW5kX2Rpc2FibGVfaXJxcygpOw0KPiAJQlVHX09OKCFpcnFzX2Rpc2Fi bGVkKCkpOw0KPiBeYWZ0ZXIgdGhpcyBwb2ludCBhbnkgSVJRIGRyaXZlbiBJMkMgdHJhbnNmZXIg d2lsbCBjYXVzZSBJUlEgdG8gYmUgcmUtZW5hYmxlZA0KPiANCj4gaWYgeW91IG5lZWQgIHR1cm4g b2ZmIGRldmljZSBmcm9tIHBsYXRmb3JtIGNhbGxiYWNrcyAtICAubWFzdGVyX3hmZXJfYXRvbWlj KCkgaGFzIHRvIGJlIGltcGxlbWVudGVkIGFuZCB1c2VkLg0KPiAgIA0KTWF5YmUgbXkgY29tbWVu dCBpcyBhIGJpdCBkaXN0dXJiaW5nLk91ciBwdXJwb3NlIGlzIG5vdCB0byBjYWxsIGkyYyBhbmQN CnVzZSBpbnRlcnJ1cHRzIGFmdGVyIF9ub2lycSBwYXVzZXMuU28gV2UgdXNlDQppMmNfbWFya19h ZGFwdGVyX3N1c3BlbmRlZCZpMmNfbWFya19hZGFwdGVyX3Jlc3VtZWQgdG8gYmxvY2sgdGhlc2Ug aTJjDQp0cmFuc2ZlcnPvvIwgVGhlcmUgd2lsbCBub3QgaGF2ZSBhbnkgSVJRIGRyaXZlbiBJMkMg dHJhbnNmZXIgYWZ0ZXIgdGhpcw0KcG9pbnQ6DQogICAgICAgIGFyY2hfc3VzcGVuZF9kaXNhYmxl X2lycXMoKTsNCiAgICAgICAgQlVHX09OKCFpcnFzX2Rpc2FibGVkKCkpOw0KQnV0IHNvbWUgZGV2 aWNlIGRyaXZlciB3aWxsIGRvIGkyYyB0cmFuc2ZlciBhZnRlcg0KZHBtX25vaXJxX3Jlc3VtZV9k ZXZpY2VzIGluIGRwbV9yZXN1bWVfbm9pcnEoUE1TR19SRVNVTUUpIHdoZW4gb3VyDQpkcml2ZXIg aXJxIGhhc24ndCByZXN1bWUuDQoJdm9pZCBkcG1fcmVzdW1lX25vaXJxKHBtX21lc3NhZ2VfdCBz dGF0ZSkNCgl7DQogICAgICAgIAlkcG1fbm9pcnFfcmVzdW1lX2RldmljZXMoc3RhdGUpOw0KICAg ICAgICAJcmVzdW1lX2RldmljZV9pcnFzKCk7DQogICAgICAgIAlkZXZpY2Vfd2FrZXVwX2Rpc2Fy bV93YWtlX2lycXMoKTsNCiAgICAgICAgCWNwdWlkbGVfcmVzdW1lKCk7DQoJfQ0KLm1hc3Rlcl94 ZmVyX2F0b21pYygpIHNlZW1zIHRvIGJlIGludmFsaWQgZm9yIHRoaXMgcXVlc3Rpb24gYXQgdGhp cw0KdGltZT8NCg0K