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Tue, 20 May 2025 02:08:35 -0700 From: Shubhi Garg To: , , , , , , , , CC: Shubhi Garg Subject: [PATCH V2 1/6] dt-bindings: mfd: add bindings for NVIDIA VRS PSEQ Date: Tue, 20 May 2025 09:08:27 +0000 Message-ID: <20250520090832.3564104-2-shgarg@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250520090832.3564104-1-shgarg@nvidia.com> References: <20250520090832.3564104-1-shgarg@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-NV-OnPremToCloud: AnonymousSubmission X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH1PEPF0000AD78:EE_|CYYPR12MB8922:EE_ X-MS-Office365-Filtering-Correlation-Id: 21491d48-d2db-4d13-28dc-08dd977deec9 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|1800799024|82310400026|376014; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?YnGcLKOQQox7HBR2mm4AeGOrHdtrkpIO+mTEf0kAQFnQ79fUoBjT8opDz/4t?= =?us-ascii?Q?TMr5HjtCdHyTlH/uUkZ8vTqmyrlXD6O+Tot97ZwEAm7tZE+XnYZxLCle0rSL?= =?us-ascii?Q?UjQh+c3rCVQWfGRZVX1DM9xbGHgdPTqii+DDCN09fQIB9y81pcpyk5Ng/wYW?= =?us-ascii?Q?kxQjvf2NkCttXoCRZzhdEETRg0aqzvK1Y79HTUbcaukGUymyWQtJFk1STZmr?= =?us-ascii?Q?AdJ/cEwh9pBOOcpVE2PVchXYGh6ISKmtzsyoXhv1r9OWDXeA99cJEK+NMosU?= =?us-ascii?Q?BM/tACKwfIl6pWEAnQ6u4SYfMoS2emLh/cm8KLmVtOrHRvf1JUYAdyDW50BQ?= =?us-ascii?Q?6ZTbSedS3VgLSlUPLIBzjvYpdCBW8Vmy0swEbGj9+EXM/FVuz/kjbRzH6r0X?= =?us-ascii?Q?ljKQP6BVcEdHueWk1ckN93/azh6zT8gLE1KAL2MClVddRE3NSxhY5oFEb0JU?= =?us-ascii?Q?koaER4w3Jf2E+k6R64OTRMs2KkJrDirNcSaEiaxqhoCPzsVPYct7ZP+ms1d2?= =?us-ascii?Q?CVl0sGGymjdq3Gb9mO88ayEHZ6w9hzyP+MftTvxtsbpbSboWLNlsFWtQruVm?= =?us-ascii?Q?xSs7H+QEz4t0gnb8lIk/636gFTiSKFV22vvOfczsP0Z4T3qtswGDdBRXl8RC?= =?us-ascii?Q?cMksaInLd29+deMDTlOiIVAOu39rPqSlztVGKrock2txZeEPZbYqp3+QW797?= =?us-ascii?Q?e5jzh/KZzGDic2LgbD5nqKcj0ofVsTcYSkATHBtNMoepRqObUIx9D5S1gOF3?= =?us-ascii?Q?C4JNWg2PY8N4FAjkgg0/DZBMzHo3gYcVGQ3JwlgmzFYrwxMH8ssOxV8Iq54L?= =?us-ascii?Q?e7JCQyRxl83Q0GVbeVBMvxTkYGQEy8N0Jc6d7QMF7iWBTcx5/LzrYaYiRFO7?= =?us-ascii?Q?DgNajSEn9ehb9jJp6LCKOyiljORDANlKXIm7hyfnpo+4wtMyaDWaeJ+PsWxe?= =?us-ascii?Q?ZjCuVR/Qgq0PX8oykeen0v6FuSNkWQhJVftQZzBDqTchaUcCYd551rPKU/bf?= =?us-ascii?Q?7fvnHSrbFHwRMlWnaIViqkna5nx6IXsFmKAVeipN+C3emFx9Z21AOVZABymE?= =?us-ascii?Q?MQeJGT91QXAy2VG4/1FBkx1EHClalFRCyDLAUWGu0C7EY63vaDGy8S/zVkxg?= =?us-ascii?Q?X7fzOuD/CO+MHmzpXuF2RVxQnON7nVIIEPMRoPKOm5yOPtkMBWvisn22KTig?= =?us-ascii?Q?Zycokyk4wP8ffFjrRtIhVdYorLIRF/hxSxlPDdfGVDFf+CxJxXItEw8SOdb4?= =?us-ascii?Q?fRzNge8Ci7gQrWNnrHWDekWGacCq4ryaNxjawhwpPRlrNqfoZTJT9gB6i3di?= =?us-ascii?Q?/o8kCn8jAEBJAUhng65EqTkMXzEdB7XDMw/nJ6su4C+lfBAzxHCHqILXisgQ?= =?us-ascii?Q?Vrh4KcL/aioo6fVRxq+p3zm8TeKa2YDLWScxIl74yfjsYTc2MIN/xxiAG6Cl?= =?us-ascii?Q?vZkbcx7qSUVFmBWUzyesL/FgKaEk8bYDGx+v0Im9fAX8Npvwog7Oe6dL1hlU?= =?us-ascii?Q?bRqptiP/ekjPQMsQcngxkt1N4blICk6FKYJX?= X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(36860700013)(1800799024)(82310400026)(376014);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 May 2025 09:08:48.7738 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 21491d48-d2db-4d13-28dc-08dd977deec9 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CH1PEPF0000AD78.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CYYPR12MB8922 Content-Type: text/plain; charset="utf-8" Add bindings for NVIDIA VRS (Voltage Regulator Specification) power sequencer device. NVIDIA VRS PSEQ controls ON/OFF and suspend/resume power sequencing of system power rails on Tegra234 SoC. This device also provides 32kHz RTC support with backup battery for system timing. Signed-off-by: Shubhi Garg --- v2: - fixed copyrights - updated description with RTC information - added status node in dtb node example .../bindings/mfd/nvidia,vrs-pseq.yaml | 60 +++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/nvidia,vrs-pseq.y= aml diff --git a/Documentation/devicetree/bindings/mfd/nvidia,vrs-pseq.yaml b/D= ocumentation/devicetree/bindings/mfd/nvidia,vrs-pseq.yaml new file mode 100644 index 000000000000..676a29d4e1fa --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/nvidia,vrs-pseq.yaml @@ -0,0 +1,60 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/nvidia,vrs-pseq.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NVIDIA Voltage Regulator Specification Power Sequencer + +maintainers: + - Shubhi Garg + +description: + NVIDIA Voltage Regulator Specification Power Sequencer device controls + ON/OFF and suspend/resume power sequencing of system power rails for NVI= DIA + SoCs. It provides 32kHz RTC clock support with backup battery for system + timing. The device also acts as an interrupt controller for managing + interrupts from the VRS power sequencer. + +properties: + compatible: + const: nvidia,vrs-pseq + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + interrupt-controller: true + + '#interrupt-cells': + const: 2 + description: + The first cell is the IRQ number, the second cell is the trigger typ= e. + +required: + - compatible + - reg + - interrupts + - interrupt-controller + - "#interrupt-cells" + +additionalProperties: false + +examples: + - | + #include + i2c { + #address-cells =3D <1>; + #size-cells =3D <0>; + + vrs@3c { + compatible =3D "nvidia,vrs-pseq"; + reg =3D <0x3c>; + interrupt-parent =3D <&pmc>; + interrupts =3D <24 IRQ_TYPE_LEVEL_LOW>; + interrupt-controller; + #interrupt-cells =3D <2>; + }; + }; --=20 2.43.0