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Mon, 15 May 2023 13:16:55 -0500 From: Brad Larson To: CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v14 3/8] dt-bindings: soc: amd: amd,pensando-elba-ctrl: Add Pensando SoC Controller Date: Mon, 15 May 2023 11:16:01 -0700 Message-ID: <20230515181606.65953-4-blarson@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230515181606.65953-1-blarson@amd.com> References: <20230515181606.65953-1-blarson@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1NAM11FT113:EE_|CH2PR12MB5018:EE_ X-MS-Office365-Filtering-Correlation-Id: 7137c1bb-4e8a-42e8-c313-08db55709385 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:(13230028)(4636009)(39860400002)(136003)(346002)(376002)(396003)(451199021)(46966006)(40470700004)(36840700001)(36756003)(54906003)(316002)(4326008)(6916009)(70206006)(70586007)(966005)(478600001)(426003)(81166007)(82310400005)(40480700001)(5660300002)(8676002)(8936002)(6666004)(2906002)(7406005)(7416002)(356005)(82740400003)(41300700001)(16526019)(2616005)(1076003)(186003)(26005)(36860700001)(83380400001)(336012)(47076005)(40460700003)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 May 2023 18:17:00.1366 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 7137c1bb-4e8a-42e8-c313-08db55709385 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: CO1NAM11FT113.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH2PR12MB5018 X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO, RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1765985382804950825?= X-GMAIL-MSGID: =?utf-8?q?1765985382804950825?= 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>; + }; + }; + +...