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Sun, 11 Feb 2024 09:18:04 -0800 From: Petlozu Pravareshwar To: , , , , , , , , , , , , , CC: Subject: [PATCH V3 2/3] dt-bindings: tegra: pmc: Update scratch as an optional aperture Date: Sun, 11 Feb 2024 17:17:26 +0000 Message-ID: <20240211171727.914595-2-petlozup@nvidia.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240211171727.914595-1-petlozup@nvidia.com> References: <20240211171727.914595-1-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 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PEPF0000009B:EE_|SJ2PR12MB8160:EE_ X-MS-Office365-Filtering-Correlation-Id: 5ff5e484-0041-4cd3-f0c0-08dc2b256b55 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:216.228.118.233;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge2.nvidia.com;CAT:NONE;SFS:(13230031)(4636009)(346002)(136003)(39860400002)(376002)(396003)(230922051799003)(64100799003)(451199024)(1800799012)(82310400011)(186009)(40470700004)(36840700001)(46966006)(86362001)(36756003)(478600001)(6666004)(41300700001)(356005)(7636003)(82740400003)(2906002)(4326008)(7416002)(5660300002)(8676002)(8936002)(110136005)(70206006)(83380400001)(316002)(70586007)(26005)(921011)(107886003)(336012)(2616005)(426003)(15650500001)(1076003);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Feb 2024 17:18:09.2783 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 5ff5e484-0041-4cd3-f0c0-08dc2b256b55 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CH2PEPF0000009B.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ2PR12MB8160 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1790623789337563214 X-GMAIL-MSGID: 1790623789337563214 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 Reviewed-by: Krzysztof Kozlowski --- Changes in v3: - Update 'reg-names' property items as per the review comments. .../arm/tegra/nvidia,tegra186-pmc.yaml | 58 ++++++++++++------- 1 file changed, 38 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..ea4fbf655220 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 +41,43 @@ properties: description: If present, inverts the PMU interrupt signal. $ref: /schemas/types.yaml#/definitions/flag -if: - properties: - compatible: - contains: - const: nvidia,tegra186-pmc -then: - properties: - reg: - maxItems: 4 - - reg-names: - maxItems: 4 -else: - properties: - reg: - minItems: 5 - - reg-names: - minItems: 5 +allOf: + - if: + properties: + compatible: + contains: + const: nvidia,tegra186-pmc + then: + properties: + reg: + maxItems: 4 + reg-names: + maxItems: 4 + contains: + const: scratch + + - if: + properties: + compatible: + contains: + const: nvidia,tegra194-pmc + then: + properties: + reg: + minItems: 5 + reg-names: + minItems: 5 + + - if: + properties: + compatible: + contains: + const: nvidia,tegra234-pmc + then: + properties: + reg-names: + contains: + const: misc patternProperties: "^[a-z0-9]+-[a-z0-9]+$":