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Mon, 14 Jun 2021 15:54:52 +0000 From: Sean Anderson To: linux-clk@vger.kernel.org, Luca Ceresoli Cc: Michael Turquette , Adam Ford , Stephen Boyd , Sean Anderson , Rob Herring , devicetree@vger.kernel.org Subject: [PATCH v2 1/2] dt-bindings: clk: vc5: Add properties for configuring the SD/OE pin Date: Mon, 14 Jun 2021 11:54:36 -0400 Message-Id: <20210614155437.3979771-1-sean.anderson@seco.com> X-Mailer: git-send-email 2.25.1 X-Originating-IP: [50.195.82.171] X-ClientProxiedBy: BL1PR13CA0102.namprd13.prod.outlook.com (2603:10b6:208:2b9::17) To DB7PR03MB4523.eurprd03.prod.outlook.com (2603:10a6:10:19::27) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from plantagenet.inhand.com (50.195.82.171) by BL1PR13CA0102.namprd13.prod.outlook.com (2603:10b6:208:2b9::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4242.9 via Frontend Transport; Mon, 14 Jun 2021 15:54:51 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 1a57497b-eba8-4e4f-6cbd-08d92f4cbf26 X-MS-TrafficTypeDiagnostic: DB8PR03MB6201: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:7219; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: seco.com X-MS-Exchange-CrossTenant-Network-Message-Id: 1a57497b-eba8-4e4f-6cbd-08d92f4cbf26 X-MS-Exchange-CrossTenant-AuthSource: DB7PR03MB4523.eurprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Jun 2021 15:54:52.2021 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: bebe97c3-6438-442e-ade3-ff17aa50e733 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 4LgbbY9L+JuV/B16xbLbyk3QOjPI7ZCtEemXRdEBbERHdfFIGjzD6IVgoebQWq0Ke5h7LB8a5rsAChET5E6aSw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB8PR03MB6201 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org These properties allow configuring the SD/OE pin as described in the datasheet. Signed-off-by: Sean Anderson Reviewed-by: Luca Ceresoli Acked-by: Rob Herring --- Changes in v2: - Rename idt,sd-active-high to idt,output-enable-active-high - Add idt,enable-shutdown .../bindings/clock/idt,versaclock5.yaml | 33 +++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml b/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml index 28675b0b80f1..79d67fad5284 100644 --- a/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml +++ b/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml @@ -30,6 +30,22 @@ description: | 3 -- OUT3 4 -- OUT4 + The idt,enable-shutdown and idt,output-enable-active-high properties + correspond to the SH and SP bits of the Primary Source and Shutdown + Register, respectively. Their behavior is summarized by the following + table: + + SH SP SD/OE Output + == == ===== ======== + 0 0 Low Active + 0 0 High Inactive + 0 1 Low Inactive + 0 1 High Active + 1 0 Low Active + 1 0 High Shutdown + 1 1 Low Inactive + 1 1 High Shutdown + maintainers: - Luca Ceresoli @@ -64,6 +80,23 @@ properties: maximum: 22760 description: Optional load capacitor for XTAL1 and XTAL2 + idt,enable-shutdown: + $ref: /schemas/types.yaml#/definitions/flag + description: | + Enable the shutdown function when the SD/OE pin is high. This + corresponds to setting the SH bit of the Primary Source and + Shutdown Register. If this property is set, it takes precedence + over the usual enable/disable semantics of the SD/OE pin. + + idt,output-enable-active-high: + $ref: /schemas/types.yaml#/definitions/flag + description: | + This enables output when the SD/OE pin is high, and disables + output when the SD/OE pin is low. This corresponds to setting the + SP bit of the Primary Source and Shutdown Register. If this + property is not present, then the SD/OE pin has the opposite + polarity (enabled when low, disabled when high). + patternProperties: "^OUT[1-4]$": type: object