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Wed, 13 Sep 2023 16:50:19 -0500 From: Brad Larson To: CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v16 2/6] dt-bindings: soc: amd: amd,pensando-elba-ctrl: Add Pensando SoC Controller Date: Wed, 13 Sep 2023 14:49:40 -0700 Message-ID: <20230913214944.59804-3-blarson@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230913214944.59804-1-blarson@amd.com> References: <20230913214944.59804-1-blarson@amd.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS2PEPF0000343A:EE_|PH7PR12MB5997:EE_ X-MS-Office365-Filtering-Correlation-Id: 326fcdd3-d01c-459a-b190-08dbb4a36eac 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:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230031)(4636009)(396003)(136003)(39860400002)(376002)(346002)(1800799009)(82310400011)(451199024)(186009)(36840700001)(46966006)(40470700004)(316002)(966005)(6666004)(54906003)(426003)(26005)(83380400001)(7406005)(70206006)(6916009)(16526019)(2616005)(8936002)(4326008)(70586007)(2906002)(41300700001)(5660300002)(8676002)(1076003)(7416002)(36756003)(336012)(40460700003)(478600001)(40480700001)(36860700001)(82740400003)(47076005)(356005)(81166007)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Sep 2023 21:50:23.1756 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 326fcdd3-d01c-459a-b190-08dbb4a36eac X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS2PEPF0000343A.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB5997 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (lipwig.vger.email [0.0.0.0]); Wed, 13 Sep 2023 14:50:52 -0700 (PDT) X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lipwig.vger.email Support the AMD Pensando Elba SoC Controller which is a SPI connected device providing a miscellaneous set of essential board control/status registers. This device is present in all Pensando SoC based designs. Signed-off-by: Brad Larson Reviewed-by: Krzysztof Kozlowski --- v14 changes: - Change GPL-2.0-only or BSD-2-Clause to GPL-2.0-only OR BSD-2-Clause v11 changes: - Fixed the compatible which should have stayed as 'amd,pensando-elba-ctrl', the commit message, and the filename - Reference spi-peripheral-props - Delete spi-max-frequency - Remove num-cs from example v10 changes: - Property renamed to amd,pensando-ctrl - Driver is renamed and moved to soc/drivers/amd affecting binding - Delete cs property, driver handles device node creation from parent num-cs fixing schema reg error in a different way v9 changes: - Instead of four nodes, one per chip-select, a single node is used with reset-cells in the parent. - No MFD API is used anymore in the driver so it made sense to move this to drivers/spi. - This driver is common for all Pensando SoC based designs so changed the name to pensando-sr.c to not make it Elba SoC specific. - Added property cs for the chip-select number which is used by the driver to create /dev/pensr0. --- .../soc/amd/amd,pensando-elba-ctrl.yaml | 58 +++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/amd/amd,pensando-elba-ctrl.yaml diff --git a/Documentation/devicetree/bindings/soc/amd/amd,pensando-elba-ctrl.yaml b/Documentation/devicetree/bindings/soc/amd/amd,pensando-elba-ctrl.yaml new file mode 100644 index 000000000000..e96978ad1e37 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/amd/amd,pensando-elba-ctrl.yaml @@ -0,0 +1,58 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/amd/amd,pensando-elba-ctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: AMD Pensando Elba SoC Controller + +description: + The AMD Pensando Elba SoC Controller is a SPI connected device with essential + control/status registers accessed on chip select 0. This device is present + in all Pensando SoC based designs. + +maintainers: + - Brad Larson + +properties: + compatible: + enum: + - amd,pensando-elba-ctrl + + reg: + maxItems: 1 + + '#reset-cells': + const: 1 + + interrupts: + maxItems: 1 + +required: + - compatible + - '#reset-cells' + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + #include + + spi { + #address-cells = <1>; + #size-cells = <0>; + + system-controller@0 { + compatible = "amd,pensando-elba-ctrl"; + reg = <0>; + spi-max-frequency = <12000000>; + interrupt-parent = <&porta>; + interrupts = <0 IRQ_TYPE_LEVEL_LOW>; + #reset-cells = <1>; + }; + }; + +... -- 2.17.1