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Tue, 14 Jul 2020 17:33:55 +0800 Received: from [10.17.3.153] (10.17.3.153) by MTKCAS32.mediatek.inc (172.27.4.170) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 14 Jul 2020 17:33:54 +0800 Message-ID: <1594719186.16172.35.camel@mhfsdcap03> Subject: Re: [PATCH 11/21] iommu/mediatek: Add power-domain operation From: Yong Wu To: Pi-Hsun Shih CC: Joerg Roedel , Matthias Brugger , Rob Herring , Robin Murphy , Will Deacon , Evan Green , Tomasz Figa , "moderated list:ARM/Mediatek SoC support" , , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , open list , "moderated list:ARM/Mediatek SoC support" , , Youlin Pei =?UTF-8?Q?=28=E8=A3=B4=E5=8F=8B=E6=9E=97=29?= , Nicolas Boichat , , , , Date: Tue, 14 Jul 2020 17:33:06 +0800 In-Reply-To: References: <20200711064846.16007-1-yong.wu@mediatek.com> <20200711064846.16007-12-yong.wu@mediatek.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-TM-SNTS-SMTP: 4A868CC5672C9E09033785D03A34B39C2AB230B1DC2A9B4BD748D338AF6B73A92000:8 X-MTK: N Content-Transfer-Encoding: base64 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org T24gTW9uLCAyMDIwLTA3LTEzIGF0IDE1OjAzICswODAwLCBQaS1Ic3VuIFNoaWggd3JvdGU6DQo+ IE9uIFNhdCwgSnVsIDExLCAyMDIwIGF0IDI6NTEgUE0gWW9uZyBXdSA8eW9uZy53dUBtZWRpYXRl ay5jb20+IHdyb3RlOg0KPiA+DQo+ID4gSW4gdGhlIHByZXZpb3VzIFNvQywgdGhlIE00VSBIVyBp cyBpbiB0aGUgRU1JIHBvd2VyIGRvbWFpbiB3aGljaCBpcw0KPiA+IGFsd2F5cyBvbi4gdGhlIGxh dGVzdCBNNFUgaXMgaW4gdGhlIGRpc3BsYXkgcG93ZXIgZG9tYWluIHdoaWNoIG1heSBiZQ0KPiA+ IHR1cm5lZCBvbi9vZmYsIHRodXMgd2UgaGF2ZSB0byBhZGQgcG1fcnVudGltZSBpbnRlcmZhY2Ug Zm9yIGl0Lg0KPiA+DQo+ID4gd2Ugc2hvdWxkIGVuYWJsZSBpdHMgcG93ZXIgYmVmb3JlIE00VSBo dyBpbml0aWFsLiBhbmQgZGlzYWJsZSBpdCBhZnRlciBIVw0KPiA+IGluaXRpYWxpemUuDQo+ID4N Cj4gPiBXaGVuIHRoZSBlbmdpbmUgd29yaywgdGhlIGVuZ2luZSBhbHdheXMgZW5hYmxlIHRoZSBw b3dlciBhbmQgY2xvY2tzIGZvcg0KPiA+IHNtaS1sYXJiL3NtaS1jb21tb24sIHRoZW4gdGhlIE00 VSdzIHBvd2VyIHdpbGwgYWx3YXlzIGJlIHBvd2VyZWQgb24NCj4gPiBhdXRvbWF0aWNhbGx5IHZp YSB0aGUgZGV2aWNlIGxpbmsgd2l0aCBzbWktY29tbW9uLg0KPiA+DQo+ID4gTm90ZTogd2UgZG9u J3QgZW5hYmxlIHRoZSBNNFUgcG93ZXIgaW4gaW9tbXVfbWFwL3VubWFwIGZvciB0bGIgZmx1c2gu DQo+ID4gSWYgaXRzIHBvd2VyIGFscmVhZHkgaXMgb24sIG9mIGNvdXJzZSBpdCBpcyBvay4gaWYg dGhlIHBvd2VyIGlzIG9mZiwNCj4gPiB0aGUgbWFpbiB0bGIgd2lsbCBiZSByZXNldCB3aGlsZSBN NFUgcG93ZXIgb24sIHRodXMgdGhlIHRsYiBmbHVzaCB3aGlsZQ0KPiA+IG00dSBwb3dlciBvZmYg aXMgdW5uZWNlc3NhcnksIGp1c3Qgc2tpcCBpdC4NCj4gPg0KPiA+IFNpZ25lZC1vZmYtYnk6IFlv bmcgV3UgPHlvbmcud3VAbWVkaWF0ZWsuY29tPg0KPiA+IC0tLQ0KPiA+ICBkcml2ZXJzL2lvbW11 L210a19pb21tdS5jIHwgNTQgKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKy0tLS0t DQo+ID4gIDEgZmlsZSBjaGFuZ2VkLCA0NyBpbnNlcnRpb25zKCspLCA3IGRlbGV0aW9ucygtKQ0K PiA+IC4uLg0KPiA+ICAgICAgICAgZm9yX2VhY2hfbTR1KGRhdGEpIHsNCj4gPiArICAgICAgICAg ICAgICAgLyogc2tpcCB0bGIgZmx1c2ggd2hlbiBwbSBpcyBub3QgYWN0aXZlICovDQo+ID4gKyAg ICAgICAgICAgICAgIGlmIChwbV9ydW50aW1lX2VuYWJsZWQoZGF0YS0+ZGV2KSAmJg0KPiA+ICsg ICAgICAgICAgICAgICAgICAgIXBtX3J1bnRpbWVfYWN0aXZlKGRhdGEtPmRldikpDQo+ID4gKyAg ICAgICAgICAgICAgICAgICAgICAgY29udGludWU7DQo+ID4gKw0KPiANCj4gcG1fcnVudGltZV9h Y3RpdmUoZGV2KSA9PSBmYWxzZSBpbXBsaWVzIGRldi0+cG93ZXIuZGlzYWJsZV9kZXB0aCA9PSAw LA0KPiB3aGljaCBpbXBsaWVzIHBtX3J1bnRpbWVfZW5hYmxlZChkZXYpID09IHRydWUsIHNvIHRo ZQ0KPiBwbV9ydW50aW1lX2VuYWJsZWQoZGF0YS0+ZGV2KSBjYW4gYmUgb21pdHRlZCBoZXJlLg0K DQpZZXMuIFRoYW5rcy4NCldpbGwgZml4IGluIG5leHQgdmVyc2lvbi4NCg0KPiANCj4gPiAgICAg ICAgICAgICAgICAgc3Bpbl9sb2NrX2lycXNhdmUoJmRhdGEtPnRsYl9sb2NrLCBmbGFncyk7DQo+ ID4gICAgICAgICAgICAgICAgIHdyaXRlbF9yZWxheGVkKEZfSU5WTERfRU4xIHwgRl9JTlZMRF9F TjAsDQo+ID4gICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIGRhdGEtPmJhc2UgKyBkYXRh LT5wbGF0X2RhdGEtPmludl9zZWxfcmVnKTsNCj4gPiAuLi4NCg0K