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Thu, 13 May 2021 15:58:46 +0800 Message-ID: <1620892726.21658.3.camel@mtkswgap22> Subject: RE: [PATCH v4] scsi: ufs-mediatek: fix ufs power down specs violation From: Peter Wang To: Avri Altman CC: "stanley.chu@mediatek.com" , "linux-scsi@vger.kernel.org" , "martin.petersen@oracle.com" , "alim.akhtar@samsung.com" , "jejb@linux.ibm.com" , "wsd_upstream@mediatek.com" , "chun-hung.wu@mediatek.com" , "alice.chao@mediatek.com" , "cc.chou@mediatek.com" , "chaotian.jing@mediatek.com" , "jiajie.hao@mediatek.com" Date: Thu, 13 May 2021 15:58:46 +0800 In-Reply-To: References: <1620813706-25331-1-git-send-email-peter.wang@mediatek.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3-0ubuntu6 MIME-Version: 1.0 X-MTK: N Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org T24gVGh1LCAyMDIxLTA1LTEzIGF0IDA2OjQ1ICswMDAwLCBBdnJpIEFsdG1hbiB3cm90ZToNCj4g PiBGcm9tOiBQZXRlciBXYW5nIDxwZXRlci53YW5nQG1lZGlhdGVrLmNvbT4NCj4gPiANCj4gPiBB cyBwZXIgc3BlY3MsIGUuZywgSkVTRDIyMEUgY2hhcHRlciA3LjIsIHdoaWxlIHBvd2VyaW5nIG9m Zg0KPiA+IHRoZSB1ZnMgZGV2aWNlLCBSU1RfTiBzaWduYWwgc2hvdWxkIGJlIGJldHdlZW4gVlNT KEdyb3VuZCkNCj4gPiBhbmQgVkNDUS9WQ0NRMi4gVGhlIHBvd2VyIGRvd24gc2VxdWVuY2UgYWZ0 ZXIgZml4aW5nIGFzIGJlbG93Og0KPiA+IA0KPiA+IFBvd2VyIGRvd246DQo+ID4gMS4gQXNzZXJ0 IFJTVF9OIGxvdw0KPiA+IDIuIFR1cm4tb2ZmIFZDQw0KPiA+IDMuIFR1cm4tb2ZmIFZDQ1EvVkND UTINCj4gPiANCj4gPiBTaWduZWQtb2ZmLWJ5OiBQZXRlciBXYW5nIDxwZXRlci53YW5nQG1lZGlh dGVrLmNvbT4NCj4gPiAtLS0NCj4gPiAgZHJpdmVycy9zY3NpL3Vmcy91ZnMtbWVkaWF0ZWsuYyB8 ICAgIDQgKysrKw0KPiA+ICAxIGZpbGUgY2hhbmdlZCwgNCBpbnNlcnRpb25zKCspDQo+ID4gDQo+ ID4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvc2NzaS91ZnMvdWZzLW1lZGlhdGVrLmMgYi9kcml2ZXJz L3Njc2kvdWZzL3Vmcy1tZWRpYXRlay5jDQo+ID4gaW5kZXggYzU1MjAyYi4uNDdiNDA2NiAxMDA2 NDQNCj4gPiAtLS0gYS9kcml2ZXJzL3Njc2kvdWZzL3Vmcy1tZWRpYXRlay5jDQo+ID4gKysrIGIv ZHJpdmVycy9zY3NpL3Vmcy91ZnMtbWVkaWF0ZWsuYw0KPiA+IEBAIC05MjIsNiArOTIyLDcgQEAg c3RhdGljIHZvaWQgdWZzX210a192cmVnX3NldF9scG0oc3RydWN0IHVmc19oYmENCj4gPiAqaGJh LCBib29sIGxwbSkNCj4gPiAgc3RhdGljIGludCB1ZnNfbXRrX3N1c3BlbmQoc3RydWN0IHVmc19o YmEgKmhiYSwgZW51bSB1ZnNfcG1fb3AgcG1fb3ApDQo+ID4gIHsNCj4gPiAgICAgICAgIGludCBl cnI7DQo+ID4gKyAgICAgICBzdHJ1Y3QgYXJtX3NtY2NjX3JlcyByZXM7DQo+ID4gDQo+ID4gICAg ICAgICBpZiAodWZzaGNkX2lzX2xpbmtfaGliZXJuOChoYmEpKSB7DQo+ID4gICAgICAgICAgICAg ICAgIGVyciA9IHVmc19tdGtfbGlua19zZXRfbHBtKGhiYSk7DQo+ID4gQEAgLTk0MSw2ICs5NDIs OSBAQCBzdGF0aWMgaW50IHVmc19tdGtfc3VzcGVuZChzdHJ1Y3QgdWZzX2hiYSAqaGJhLA0KPiA+ IGVudW0gdWZzX3BtX29wIHBtX29wKQ0KPiA+ICAgICAgICAgICAgICAgICAgICAgICAgIGdvdG8g ZmFpbDsNCj4gPiAgICAgICAgIH0NCj4gPiANCj4gPiArICAgICAgIGlmICh1ZnNoY2RfaXNfbGlu a19vZmYoaGJhKSkNCj4gPiArICAgICAgICAgICAgICAgdWZzX210a19kZXZpY2VfcmVzZXRfY3Ry bCgwLCByZXMpOw0KPiBBY2NvcmRpbmcgdG8geW91ciBjb21taXQgbG9nLCB5b3Ugc2hvdWxkIGNh bGwgcmVzZXQganVzdCBiZWZvcmUgDQo+IHVmc19tdGtfdnJlZ19zZXRfbHBtLCBvciB0dXJuIHBo eSBvZmYsIHdoaWNoZXZlciB0dXJuIG9mZiB2Y2MgLSANCj4gRmV3IGxpbmVzIGFib3ZlLg0KPiAN Cj4gVGhhbmtzLA0KPiBBdnJpDQoNCnVmc19tdGtfdnJlZ19zZXRfbHBtIG9ubHkgc2V0IHZjY3Ey IHBvd2VyIG1vZGUgdG8gbHBtLCBkb3NlJ3QgdHJ1biBvZmYNCnZjY3EyLkFuZCB0dXJuIHBoeSBv ZmYgaXMgYWxzbyB0dXJuIG9mZiB2Y2MsIGRvc2UndCB0dXJuIG9mZiB2Y2NxMi4NClJTVF9OIGtl ZXAgaGlnaCBpcyBubyBwcm9ibGVtIHdoZW4gd2UgdHJ1biBvZmYgdmNjIGFuZCB2Y2NxMiBrZWVw IG9uLg0KQnV0IFJTVF9OIHdpbGwgZ290IHByb2JsZW0gaWYgd2UgdHJ1biBvZmYgdmNjcTIuDQoo UlNUX04gc2lnbmFsIHNob3VsZCBiZSBiZXR3ZWVuIFZTUyhHcm91bmQpIGFuZCBWQ0NRL1ZDQ1Ey KQ0KSGVyZSBzZXQgUlNUX04gdG8gbG93IGlzIGFmdGVyIHNodXQgZG93biBwbSBzZXQgbGluayBv ZmYsIGFuZCBiZWZvcmUNCnNodXRkb3duIHBtIHR1cm4gb2ZmIHZjY3EyLg0KDQpUaGFua3MNClBl dGVyDQoNCj4gDQo+ID4gKw0KPiA+ICAgICAgICAgcmV0dXJuIDA7DQo+ID4gIGZhaWw6DQo+ID4g ICAgICAgICAvKg0KPiA+IC0tDQo+ID4gMS43LjkuNQ0KPiANCg0K