Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Peng Fan <peng.fan@nxp.com>
To:     "lgirdwood@gmail.com" <lgirdwood@gmail.com>,
        "broonie@kernel.org" <broonie@kernel.org>,
        "robh+dt@kernel.org" <robh+dt@kernel.org>,
        "mark.rutland@arm.com" <mark.rutland@arm.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>
CC:     dl-linux-imx <linux-imx@nxp.com>, Peng Fan <peng.fan@nxp.com>
Subject: [PATCH 1/2] dt-bindings: regulator: fixed: add off-on-delay-us
 property
Thread-Topic: [PATCH 1/2] dt-bindings: regulator: fixed: add off-on-delay-us
 property
Thread-Index: AQHVjfcvACtvwfUHYE2ECPgsSDAQzg==
Date:   Tue, 29 Oct 2019 01:21:27 +0000
Message-ID: <1572311875-22880-2-git-send-email-peng.fan@nxp.com>
References: <1572311875-22880-1-git-send-email-peng.fan@nxp.com>
In-Reply-To: <1572311875-22880-1-git-send-email-peng.fan@nxp.com>
Accept-Language: en-US
Content-Language: en-US
x-ms-exchange-messagesentrepresentingtype: 1
x-originating-ip: [119.31.174.66]
x-ms-publictraffictype: Email
x-ms-office365-filtering-ht: Tenant
x-ms-office365-filtering-correlation-id: 0f64af98-d855-4a4a-bceb-08d75c0e5228
x-ms-traffictypediagnostic: AM0PR04MB4291:|AM0PR04MB4291:
x-ms-exchange-transport-forked: True
x-microsoft-antispam-prvs: <AM0PR04MB429144A969E51869CE4A3FBF88610@AM0PR04MB4291.eurprd04.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:7691;
x-forefront-prvs: 0205EDCD76
x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(4636009)(376002)(396003)(346002)(39860400002)(366004)(136003)(189003)(199004)(14454004)(478600001)(66946007)(8936002)(6512007)(6436002)(76176011)(99286004)(7736002)(54906003)(316002)(52116002)(81156014)(8676002)(110136005)(305945005)(66066001)(186003)(81166006)(4326008)(50226002)(36756003)(6486002)(25786009)(2201001)(86362001)(66446008)(66556008)(476003)(64756008)(5660300002)(44832011)(256004)(486006)(2616005)(446003)(3846002)(6116002)(11346002)(2501003)(71200400001)(71190400001)(386003)(66476007)(6506007)(26005)(102836004)(2906002);DIR:OUT;SFP:1101;SCL:1;SRVR:AM0PR04MB4291;H:AM0PR04MB4481.eurprd04.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;MX:1;A:1;
received-spf: None (protection.outlook.com: nxp.com does not designate
 permitted sender hosts)
x-ms-exchange-senderadcheck: 1
x-microsoft-antispam: BCL:0;
x-microsoft-antispam-message-info: TjxAskEnKmjsLYSeXeBK5u9ViEbGEZgzPlc2BIDborvNGRWcJJaS7V6Qi/HeCYCYKUwlPHqHWmruAknVDXOo3TsVQsndimW/2xhVQBWIupKYobTOLSo+AGvpvH1qAfDbqwuQHF6RkP/vYJbFLL8q2k/MbFCPxQf4DyaISv9T3reZhakv1IUhT8zxHnaASGe3nwoLzsJb/d9Y6/3UKri12f0K+kOjusFU5NrIuT9Ljgc0D/TjMc9WRO7znljsnowsq9rCs5MSVkg7SIXUI0bGvpvE9J9Lrvk4jlQpd3p3bZ9XT4zwP7XsKfffSqqyYnY2e7q3X8VK6PrQ2Ar5u3siI/0kMGjuJpWFOSZNYRrEL1XeJBY5k4c0ZZwfNwu+tb6gCT24LliMOyyVUVxExpQ7jMdPX5Bz+swDkdSwD8pfsdvrUU+tmrSctlp09wsFRmOC
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-OriginatorOrg: nxp.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 0f64af98-d855-4a4a-bceb-08d75c0e5228
X-MS-Exchange-CrossTenant-originalarrivaltime: 29 Oct 2019 01:21:27.7731
 (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: iAHuUE4sDFzuYXI3Ap9KK0uv0JISv+vPWzelXfYxMOFqyhWiil6N7oFJfoqmT+SEQoSXKrcQpzcbWniJbijP9A==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB4291
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

From: Peng Fan <peng.fan@nxp.com>

When disabling a fixed regulator, it may take some time to let the
voltage drop to the expected value, such as zero. If not delay
enough time, the regulator might have been always enabled.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 Documentation/devicetree/bindings/regulator/fixed-regulator.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/regulator/fixed-regulator.ya=
ml b/Documentation/devicetree/bindings/regulator/fixed-regulator.yaml
index a78150c47aa2..954130a8ccbe 100644
--- a/Documentation/devicetree/bindings/regulator/fixed-regulator.yaml
+++ b/Documentation/devicetree/bindings/regulator/fixed-regulator.yaml
@@ -50,6 +50,10 @@ properties:
     description: startup time in microseconds
     $ref: /schemas/types.yaml#/definitions/uint32
=20
+  off-on-delay-us:
+    description: off delay time in microseconds
+    $ref: /schemas/types.yaml#/definitions/uint32
+
   enable-active-high:
     description:
       Polarity of GPIO is Active high. If this property is missing,
--=20
2.16.4