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Wed, 18 Jan 2023 21:52:31 -0600 From: Brad Larson To: CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v9 06/15] dt-bindings: mfd: amd,pensando-elbasr: Add AMD Pensando System Resource chip Date: Wed, 18 Jan 2023 19:51:27 -0800 Message-ID: <20230119035136.21603-7-blarson@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230119035136.21603-1-blarson@amd.com> References: <20230119035136.21603-1-blarson@amd.com> MIME-Version: 1.0 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: CO1NAM11FT099:EE_|MN2PR12MB4079:EE_ X-MS-Office365-Filtering-Correlation-Id: fe0166cb-2001-4a19-45b7-08daf9d099ee 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:(13230022)(4636009)(396003)(376002)(346002)(136003)(39860400002)(451199015)(40470700004)(46966006)(36840700001)(36860700001)(82740400003)(40460700003)(36756003)(356005)(81166007)(8936002)(7416002)(7406005)(41300700001)(5660300002)(8676002)(6916009)(316002)(70586007)(70206006)(82310400005)(4326008)(2906002)(336012)(426003)(1076003)(40480700001)(47076005)(2616005)(83380400001)(478600001)(966005)(54906003)(26005)(186003)(6666004)(16526019)(36900700001);DIR:OUT;SFP:1101; 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The device functions are accessed using four chip-selects. This device is present for all Pensando SoC designs. Signed-off-by: Brad Larson --- Changes since v6: - 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/spi/amd,pensando-sr.yaml | 68 +++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/amd,pensando-sr.yaml diff --git a/Documentation/devicetree/bindings/spi/amd,pensando-sr.yaml b/Documentation/devicetree/bindings/spi/amd,pensando-sr.yaml new file mode 100644 index 000000000000..8504652f6e19 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/amd,pensando-sr.yaml @@ -0,0 +1,68 @@ +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/spi/amd,pensando-sr.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: AMD Pensando SoC Resource Controller + +description: | + AMD Pensando SoC Resource Controller is a set of + control/status registers accessed on four chip-selects. + This device is present in all Pensando SoC based designs. + +maintainers: + - Brad Larson + +properties: + compatible: + contains: + enum: + - amd,pensando-sr + + reg: + minItems: 1 + + cs: + minItems: 1 + maxItems: 4 + description: + Device chip select + + '#reset-cells': + const: 1 + + interrupts: + maxItems: 1 + + spi-max-frequency: true + +required: + - compatible + - cs + - 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-sr"; + reg = <0>; + cs = <0 1 2 3>; + spi-max-frequency = <12000000>; + interrupt-parent = <&porta>; + interrupts = <0 IRQ_TYPE_LEVEL_LOW>; + #reset-cells = <1>; + }; + }; + +...