From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 37584C2BD09 for ; Mon, 1 Jul 2024 09:32:54 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4WCLS45W4Yz3g4R for ; Mon, 1 Jul 2024 19:32:52 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=taln60.nuvoton.co.il (client-ip=212.199.177.27; helo=herzl.nuvoton.co.il; envelope-from=tmaimon@taln60.nuvoton.co.il; receiver=lists.ozlabs.org) Received: from herzl.nuvoton.co.il (unknown [212.199.177.27]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4WCLR072hjz3fsV for ; Mon, 1 Jul 2024 19:31:54 +1000 (AEST) Received: from NTILML01.nuvoton.com (212.199.177.18.static.012.net.il [212.199.177.18]) by herzl.nuvoton.co.il (8.13.8/8.13.8) with ESMTP id 4619Vi1s010018 for ; Mon, 1 Jul 2024 12:31:45 +0300 Received: from NTHCCAS02.nuvoton.com (10.1.9.121) by NTILML01.nuvoton.com (10.190.1.56) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Mon, 1 Jul 2024 12:31:43 +0300 Received: from NTHCCAS01.nuvoton.com (10.1.8.28) by NTHCCAS02.nuvoton.com (10.1.9.121) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Mon, 1 Jul 2024 17:31:39 +0800 Received: from taln58.nuvoton.co.il (10.191.1.178) by NTHCCAS01.nuvoton.com (10.1.8.28) with Microsoft SMTP Server id 15.1.2507.39 via Frontend Transport; Mon, 1 Jul 2024 17:31:39 +0800 Received: from taln60.nuvoton.co.il (taln60 [10.191.1.180]) by taln58.nuvoton.co.il (Postfix) with ESMTP id E90DD5F673; Mon, 1 Jul 2024 12:31:37 +0300 (IDT) Received: by taln60.nuvoton.co.il (Postfix, from userid 10070) id E63A6DC0323; Mon, 1 Jul 2024 12:31:37 +0300 (IDT) From: Tomer Maimon To: Subject: [linux dev-6.6 v2 1/2] dt-bindings: gpio: add NPCM sgpio driver bindings Date: Mon, 1 Jul 2024 12:31:34 +0300 Message-ID: <20240701093135.1554762-2-tmaimon77@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240701093135.1554762-1-tmaimon77@gmail.com> References: <20240701093135.1554762-1-tmaimon77@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NotSetDelaration: True X-BeenThere: openbmc@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development list for OpenBMC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jim Liu , Joel Stanley , Tomer Maimon Errors-To: openbmc-bounces+openbmc=archiver.kernel.org@lists.ozlabs.org Sender: "openbmc" Add dt-bindings document for the Nuvoton NPCM7xx sgpio driver Signed-off-by: Jim Liu Signed-off-by: Tomer Maimon --- .../bindings/gpio/nuvoton,sgpio.yaml | 87 +++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/nuvoton,sgpio.yaml diff --git a/Documentation/devicetree/bindings/gpio/nuvoton,sgpio.yaml b/Documentation/devicetree/bindings/gpio/nuvoton,sgpio.yaml new file mode 100644 index 000000000000..9e32e54aeb24 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/nuvoton,sgpio.yaml @@ -0,0 +1,87 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/nuvoton,sgpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Nuvoton SGPIO controller + +maintainers: + - Jim LIU + +description: | + This SGPIO controller is for NUVOTON NPCM7xx and NPCM8xx SoC and detailed + information is in the NPCM7XX/8XX SERIAL I/O EXPANSION INTERFACE section. + Nuvoton NPCM7xx SGPIO module is combines a serial to parallel IC (HC595) + and a parallel to serial IC (HC165). + Clock is a division of the APB3 clock. + This interface has 4 pins (D_out , D_in, S_CLK, LDSH). + NPCM7xx/NPCM8xx have two sgpio modules. Each module can support up + to 64 output pins, and up to 64 input pins, the pin is only for GPI or GPO. + GPIO pins can be programmed to support the following options + - Support interrupt option for each input port and various interrupt + sensitivity options (level-high, level-low, edge-high, edge-low) + - ngpios is number of nuvoton,input-ngpios GPIO lines and nuvoton,output-ngpios GPIO lines. + nuvoton,input-ngpios GPIO lines is only for GPI. + nuvoton,output-ngpios GPIO lines is only for GPO. + +properties: + compatible: + enum: + - nuvoton,npcm750-sgpio + - nuvoton,npcm845-sgpio + + reg: + maxItems: 1 + + gpio-controller: true + + '#gpio-cells': + const: 2 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + nuvoton,input-ngpios: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + The numbers of GPIO's exposed. GPIO lines are only for GPI. + minimum: 0 + maximum: 64 + + nuvoton,output-ngpios: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + The numbers of GPIO's exposed. GPIO lines are only for GPO. + minimum: 0 + maximum: 64 + +required: + - compatible + - reg + - gpio-controller + - '#gpio-cells' + - interrupts + - nuvoton,input-ngpios + - nuvoton,output-ngpios + - clocks + +additionalProperties: false + +examples: + - | + #include + #include + gpio8: gpio@101000 { + compatible = "nuvoton,npcm750-sgpio"; + reg = <0x101000 0x200>; + clocks = <&clk NPCM7XX_CLK_APB3>; + interrupts = ; + gpio-controller; + #gpio-cells = <2>; + nuvoton,input-ngpios = <64>; + nuvoton,output-ngpios = <64>; + }; -- 2.34.1