Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Hongxing Zhu <hongxing.zhu@nxp.com>
To:     Bjorn Helgaas <helgaas@kernel.org>
CC:     "l.stach@pengutronix.de" <l.stach@pengutronix.de>,
        "bhelgaas@google.com" <bhelgaas@google.com>,
        "robh+dt@kernel.org" <robh+dt@kernel.org>,
        "broonie@kernel.org" <broonie@kernel.org>,
        "lorenzo.pieralisi@arm.com" <lorenzo.pieralisi@arm.com>,
        "jingoohan1@gmail.com" <jingoohan1@gmail.com>,
        "festevam@gmail.com" <festevam@gmail.com>,
        "francesco.dolcini@toradex.com" <francesco.dolcini@toradex.com>,
        "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
        "linux-arm-kernel@lists.infradead.org" 
        <linux-arm-kernel@lists.infradead.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "kernel@pengutronix.de" <kernel@pengutronix.de>,
        dl-linux-imx <linux-imx@nxp.com>
Subject: RE: [PATCH v9 5/8] PCI: imx6: Refine the regulator usage
Thread-Topic: [PATCH v9 5/8] PCI: imx6: Refine the regulator usage
Thread-Index: AQHYYOzgY7AYlEljsUCdTBhQfAYNj61GEJ+AgACFwmCAAPIXgIAA4sKw
Date:   Fri, 10 Jun 2022 07:09:35 +0000
Message-ID: <AS8PR04MB86767131E8EA4AA6AC38192A8CA69@AS8PR04MB8676.eurprd04.prod.outlook.com>
References: <AS8PR04MB8676EFCB2BA9C1DD0F33C4FA8CA79@AS8PR04MB8676.eurprd04.prod.outlook.com>
 <20220609172005.GA514802@bhelgaas>
In-Reply-To: <20220609172005.GA514802@bhelgaas>
Accept-Language: en-US
Content-Language: en-US
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: =?utf-8?B?b2FxVEd2WkdQNU0rNjdMYnltQXNGcFp6dWJaRDFKbnFyZVBvQmdtZklOb2dS?=
 =?utf-8?B?R0RoNis2Z2xYVXpycnViQ1V5RDA5dTl1UUZVdDl4RU42ZDNiZnRrMFZtcUZP?=
 =?utf-8?B?N1lKTTRMRW1pSi9xM04yL3M0MnJZV0JRWDlkd29rTkY1TWpPYXNPbnVyRG9a?=
 =?utf-8?B?VWN6WHRGNnYxU2I1SUcxRmk0WU9QVmJKcTB4czNqbS9ZV09tdHhKRWJ0RXRR?=
 =?utf-8?B?NGJ4eXRPNzd5Mjk1U1plR0JoUFFWcEFlVGgyclh4QmFuMWs2ZGVFSmtWcVFs?=
 =?utf-8?B?OWlyYlh0dEJhK2JWMWJobjFqUnc5dkI0TmZQcFNkd1FnQ1VocmQ2cHRpbGta?=
 =?utf-8?B?SElla2lqMjBVbFVGY0tIQVBUSnV3N1JkOGI1UVh3eDRvYlRpaGhNK0FnT0lI?=
 =?utf-8?B?QWlLdkw2T1F1TnJ5MzFhcmF4UEFDRUVVem9qQW1oNktaY2VqcllzZkM5cjJm?=
 =?utf-8?B?N0ZYZURBZmlOTnZ2YTQ3Z3VScDZ4VHZYTy9jOWl6YUJLRnAyZTJ2NWZQMFhI?=
 =?utf-8?B?ME5mN21tWWZxa0J4dUhVZ0NKd0c2Myt5b2FzL2RYSEVRWExSa284NmpaQ3hv?=
 =?utf-8?B?ZlNzVlBJUmhSRDB0Ti9uZUFXRHppd2Z3WnpucXk3b2JkdnhXbXE5bk1zQ3Az?=
 =?utf-8?B?MXYzYXgrcU44UEVsL2twLzJHOTByeW1pWkVISjM5T2Z4T3JpdTVzbVpTRS9i?=
 =?utf-8?B?dWYvYWlxT1ZoNy9hSnk3VDAxbTBDQVFIcmVLTVA5cHJXWWhwQWdkSGlUcGU3?=
 =?utf-8?B?S0FBSjRWOXhVSktkTE9WVE1qSnEwTUtTMVNqVzdBQ3o3Q2ttRjltOXlTSnBR?=
 =?utf-8?B?dHZvbzdmRXdsRXFzZE1CVVMxZEsrTVJmUDRiakd1d1ZHR2s4eStXOEsrekFu?=
 =?utf-8?B?Tnk3Q1hiNGdOR211MG1ibGpZQkM0bW42aVJaM0JWdlZZNTJiM0FtejBIanRH?=
 =?utf-8?B?M0V6Rjh0Ujc5QkN5Q3cralNwd2FPZE9qT1hJbGhNcXBGTUg2U2lpc2E0aEJr?=
 =?utf-8?B?b08yQmoyalhGcldEMFBtZFlXb2dNZ2NSODl3NDFmREt1MmtwZXRSTkZkWE8z?=
 =?utf-8?B?aWNuWUR5RWhsdkZ4S3VTcXQ0NlZaQlBhRE8xVkczcm1admg5WUt2VEFGZEVl?=
 =?utf-8?B?cDdRaVlqVm5tQU5mQTNwc293Z3lza2tKYUtlWWpwWlljUEQ2QWlLK3FWc0NI?=
 =?utf-8?B?bHE5NEFNVHRsbytETnBVRDlkMVhDMTI2UHh1WUhNSHFaNzdrM0pNS2pXUXpZ?=
 =?utf-8?B?a3RpVzNMNHpld0lVOGI5UmJPZmJ6SkdnUDBhem13TDYvYjh4cThQRm9SSnkr?=
 =?utf-8?B?UjNtckJiNDZQL05hSHh2azhxdHRWd3FrVW9HeDk5eExYZXJZOGd5emhDWkhz?=
 =?utf-8?B?TndKeFBkc25pSitXbWllRmthRmcyRzFDN0h5OU5jWnFGSldjTVFjaDRXZ3Fq?=
 =?utf-8?B?d1B4ME0zYWVObnhlMXdIenA4aGRZUnJxZklUQlFxQVgxbkpXWGxkZmlDOEM5?=
 =?utf-8?B?NmxONkFwU0tqLzVZRlV5VzNNQjhXVkxSWE1WQ1JvWHkrUk5SU2V5dHBGNDhz?=
 =?utf-8?B?K3JhekFlaUpGdzYxd0Y3RGtmeDdZNENIaVNLUlNGR2hYUFVGNWZXSlNTMWhs?=
 =?utf-8?B?ZnBHSk1qVlc5c0VIakV6TGQzdDdqYk8yMisvS3p3dFJERDlxblNyY09iUkJG?=
 =?utf-8?B?YXphNFk5WDJXbi8zZ2VrVHlod0t0OExOUVZYcW9wYnpId0dsM0FJejlnWDdk?=
 =?utf-8?B?dEFpcmVuZnRHbGU4SDNDUVYyN21yb2dqeUZPYU1PSDRqOTc5b1g3WitQWUNm?=
 =?utf-8?B?WDJPVG12QjlldERtMzFVWHk0T1ljNDY3bWpQL2FsWW0wdnlSaVRRK1R3WHM3?=
 =?utf-8?B?SEh0T3dXdmVDRzBXdlV4bEt3S1k4YTRlWURnWk9OMGR2cnlYVUZITTNvSFA4?=
 =?utf-8?B?R3Bsa2lNQUFmcllGdUFLNWNnTER6N0J1MzhnczAyaGplSkJkNU5CYXBpOTho?=
 =?utf-8?B?TnF6dTFranlvUnJXOGJJQlZ2djFxQkRveVpKQWxWdXQ0blpUUXlWaDdEeUFU?=
 =?utf-8?B?WXhUSlVLbUcrUXgzOXgvdmU5dmljVXBIakM3dU12SHFoazF4UXFQUGswU1gx?=
 =?utf-8?B?ZWxkTW04b2s3SVRuLzVHVkhBNHNsa29USlB5Uk5pa2FDY2dYOHBGQmk1bTFq?=
 =?utf-8?B?YXQvQ1RadVMwRGtGVGUrQWVhSy83dnlVUnVlUTlWejU1dGtBaWJHbjdqQTlM?=
 =?utf-8?B?WG9jbXA0SmJtOUE2eC84S1dxajJzUVFKR2NoZjRRWE91Si85TGdOcHlxN1oz?=
 =?utf-8?B?UktXQ2gvWFhxUjNiT0xOMUYzZkRpVkZQZ2tGWHNDZFN4VzRxNGxjUT09?=
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-OriginatorOrg: nxp.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: AS8PR04MB8676.eurprd04.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 2e83d41a-e3d7-402f-2416-08da4ab02d32
X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Jun 2022 07:09:35.8681
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: HsMSzNGHibdqYSeZDIwAMyAqODPlo9EAb7F8jSS0YYwBEYw/Zkf514Il1Me18NZQM/ZjNn5Gu4xPtR0L6q7Rxg==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR04MB5352
X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,
        DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE,
        RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS,T_SCC_BODY_TEXT_LINE,
        URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
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