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Wed, 17 Jan 2024 12:25:48 -0800 From: Petlozu Pravareshwar To: , , , , , , , , , , , , , CC: Subject: [PATCH V2 2/3] dt-bindings: tegra: pmc: Update scratch as an optional aperture Date: Wed, 17 Jan 2024 20:25:03 +0000 Message-ID: <20240117202504.943476-2-petlozup@nvidia.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240117202504.943476-1-petlozup@nvidia.com> References: <20240117202504.943476-1-petlozup@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NVConfidentiality: public Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000E9D3:EE_|BN9PR12MB5368:EE_ X-MS-Office365-Filtering-Correlation-Id: 1fea15eb-417c-409b-7798-08dc179a8287 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.118.232;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge1.nvidia.com;CAT:NONE;SFS:(13230031)(4636009)(376002)(396003)(136003)(39860400002)(346002)(230173577357003)(230273577357003)(230922051799003)(64100799003)(186009)(451199024)(82310400011)(1800799012)(36840700001)(46966006)(40470700004)(41300700001)(82740400003)(356005)(47076005)(83380400001)(36860700001)(7636003)(86362001)(36756003)(921011)(110136005)(70586007)(70206006)(7416002)(2906002)(15650500001)(4326008)(8676002)(8936002)(5660300002)(1076003)(2616005)(336012)(426003)(26005)(107886003)(316002)(478600001)(6666004)(40460700003)(40480700001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Jan 2024 20:25:56.0992 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 1fea15eb-417c-409b-7798-08dc179a8287 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000E9D3.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN9PR12MB5368 Scratch address space register is used to store reboot reason. For some Tegra234 systems, the scratch space is not available to store the reboot reason. This is because scratch region on these systems is not accessible by the kernel as restricted by the Hypervisor. Such systems would delist scratch aperture from PMC DT node. Accordingly, this change makes "scratch" as an optional aperture for Tegra234 in PMC dt-binding document. Signed-off-by: Petlozu Pravareshwar --- Changes in v2: - Fix dt_binding_check indentation warning. - Update 'reg-names' property items list. .../arm/tegra/nvidia,tegra186-pmc.yaml | 78 ++++++++++++++----- 1 file changed, 58 insertions(+), 20 deletions(-) diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml index 0faa403f68c8..79928824005d 100644 --- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml +++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml @@ -27,7 +27,7 @@ properties: - const: pmc - const: wake - const: aotag - - const: scratch + - enum: [ scratch, misc ] - const: misc interrupt-controller: true @@ -41,25 +41,63 @@ properties: description: If present, inverts the PMU interrupt signal. $ref: /schemas/types.yaml#/definitions/flag -if: - properties: - compatible: - contains: - const: nvidia,tegra186-pmc -then: - properties: - reg: - maxItems: 4 - - reg-names: - maxItems: 4 -else: - properties: - reg: - minItems: 5 - - reg-names: - minItems: 5 +allOf: + - if: + properties: + compatible: + contains: + const: nvidia,tegra186-pmc + then: + properties: + reg: + maxItems: 4 + reg-names: + items: + - const: pmc + - const: wake + - const: aotag + - const: scratch + + - if: + properties: + compatible: + contains: + const: nvidia,tegra194-pmc + then: + properties: + reg: + minItems: 5 + reg-names: + items: + - const: pmc + - const: wake + - const: aotag + - const: scratch + - const: misc + + - if: + properties: + compatible: + contains: + const: nvidia,tegra234-pmc + then: + properties: + reg: + minItems: 4 + maxItems: 5 + reg-names: + anyOf: + - items: + - const: pmc + - const: wake + - const: aotag + - const: misc + - items: + - const: pmc + - const: wake + - const: aotag + - const: scratch + - const: misc patternProperties: "^[a-z0-9]+-[a-z0-9]+$": -- 2.25.1