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Mon, 10 Apr 2023 18:46:32 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by DM6NAM11FT052.mail.protection.outlook.com (10.13.172.111) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.6298.27 via Frontend Transport; Mon, 10 Apr 2023 18:46:32 +0000 Received: from platform-dev1.pensando.io (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.34; Mon, 10 Apr 2023 13:46:29 -0500 From: Brad Larson To: CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v13 05/15] dt-bindings: soc: amd: amd,pensando-elba-ctrl: Add Pensando SoC Controller Date: Mon, 10 Apr 2023 11:45:16 -0700 Message-ID: <20230410184526.15990-6-blarson@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230410184526.15990-1-blarson@amd.com> References: <20230410184526.15990-1-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: DM6NAM11FT052:EE_|DS0PR12MB6630:EE_ X-MS-Office365-Filtering-Correlation-Id: bc221dac-1306-4a5c-db6c-08db39f3e79a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Apr 2023 18:46:32.7641 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: bc221dac-1306-4a5c-db6c-08db39f3e79a 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: DM6NAM11FT052.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB6630 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org 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 --- 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..f1d3ed4f519b --- /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>; + }; + }; + +...