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Sun, 5 Mar 2023 22:08:51 -0600 From: Brad Larson To: CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v10 05/15] dt-bindings: soc: amd: amd,pensando-elbasr: Add AMD Pensando SoC System Controller Date: Sun, 5 Mar 2023 20:07:29 -0800 Message-ID: <20230306040739.51488-6-blarson@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230306040739.51488-1-blarson@amd.com> References: <20230306040739.51488-1-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: DM6NAM11FT039:EE_|DS0PR12MB7771:EE_ X-MS-Office365-Filtering-Correlation-Id: 2bd2e6dc-bf7d-470e-06a8-08db1df88062 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:(13230025)(4636009)(376002)(346002)(396003)(136003)(39860400002)(451199018)(46966006)(40470700004)(36840700001)(316002)(54906003)(478600001)(2906002)(2616005)(40460700003)(966005)(6666004)(6916009)(70586007)(8676002)(70206006)(4326008)(41300700001)(8936002)(16526019)(26005)(186003)(7416002)(7406005)(1076003)(5660300002)(83380400001)(47076005)(426003)(336012)(40480700001)(36860700001)(82740400003)(81166007)(82310400005)(36756003)(356005)(36900700001);DIR:OUT;SFP:1101; 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This device is present in all Pensando SoC based designs. Signed-off-by: Brad Larson --- 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. --- .../bindings/soc/amd/amd,pensando-ctrl.yaml | 60 +++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/amd/amd,pensando-ctrl.yaml diff --git a/Documentation/devicetree/bindings/soc/amd/amd,pensando-ctrl.yaml b/Documentation/devicetree/bindings/soc/amd/amd,pensando-ctrl.yaml new file mode 100644 index 000000000000..36694077b2e6 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/amd/amd,pensando-ctrl.yaml @@ -0,0 +1,60 @@ +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/amd/amd,pensando-ctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: AMD Pensando SoC Controller + +description: | + The AMD Pensando 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: + contains: + enum: + - amd,pensando-ctrl + + reg: + minItems: 1 + + '#reset-cells': + const: 1 + + interrupts: + maxItems: 1 + + spi-max-frequency: true + +required: + - compatible + - spi-max-frequency + - '#reset-cells' + +unevaluatedProperties: false + +examples: + - | + #include + + spi { + #address-cells = <1>; + #size-cells = <0>; + num-cs = <4>; + + system-controller@0 { + compatible = "amd,pensando-ctrl"; + reg = <0>; + spi-max-frequency = <12000000>; + interrupt-parent = <&porta>; + interrupts = <0 IRQ_TYPE_LEVEL_LOW>; + #reset-cells = <1>; + }; + }; + +...