From patchwork Tue Nov 8 09:28:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jim Liu X-Patchwork-Id: 16966 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:6687:0:0:0:0:0 with SMTP id l7csp2592023wru; Tue, 8 Nov 2022 01:34:04 -0800 (PST) X-Google-Smtp-Source: AMsMyM5qGVsHoSPR6ol/geIs7zmMDHLrqlmIitUjDMiYrL2F+xwIpRDl1lglVtdFUeVgyQE/+AQq X-Received: by 2002:a17:906:4c4b:b0:7ad:a197:b58e with SMTP id d11-20020a1709064c4b00b007ada197b58emr53148976ejw.203.1667900043998; Tue, 08 Nov 2022 01:34:03 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1667900043; cv=none; d=google.com; s=arc-20160816; b=moNUJQoqlme/N2XRZgdvP2pbjy+JEPKEqH5eT+MGW0li+6eWY/shWYcDeikVJvuar1 VM1iAAQDbLXcjwqfsoz+/hReS6KxtTmmpRHgweImhndaWUdjJkOgHD98buP2plR+ilsV fkDX/ryIQIVfvUtDVj0eb9xw+9RVa7gwgrfMxjG6Lbg+2cJN6nrrNmfIwmz09Qo5PoLw US3u/LsOIhVQBtvDYfmNAdZW5jBNGvAtTvSU3kWwDBar4dJL3+4Ihfh2prBUSOWE81xV ki2k5Vkw1HCa6jie/OjcyKneeQtsKtEPppDsj3MHXJWmmJvEDAKqPfJQjZuQ375Th22U BJCQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:references:in-reply-to:message-id:date:subject :cc:to:from:dkim-signature; bh=Pnl7ZG08BhjAH6w2uqmjyTgSyZMRz6TVlKCPmOlFFnw=; b=q48uddjJeITjwX1bwG6X6CyhZreGTIxBHaiMLltWJR+bxTP9hTVt1Py4JV+EFmGLhr dQxrif9iAxFY/bePcavSXW7dDOdZG/gg4A/CFlv8i5jhoBj1FkMwIgFnWU2E3RmyN22C LgOe2Gpr85a0GUJonzXVjR82Ehz2FVpajtgGuIsw3TSNcoj/lIVBNcc/dREWeaCQWF0b mYo0UO4hn7a4xgo4FJ+l0D4bUB4VUo+C/h2eZ0YrWIk6ytshgsUalgnLWRSK8B23TpGM AjKJFPHdsR6Wp8tbQ/YEby3BBVxdKZXxyLZ4Vpnq/fwJxkOIQM4WseIbFS7Yz0dDew0S dwlw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=pqyf9Mvi; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id hc32-20020a17090716a000b007ae63fe980dsi9674464ejc.931.2022.11.08.01.33.29; Tue, 08 Nov 2022 01:34:03 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=pqyf9Mvi; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233656AbiKHJ30 (ORCPT + 99 others); Tue, 8 Nov 2022 04:29:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45766 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233678AbiKHJ3X (ORCPT ); Tue, 8 Nov 2022 04:29:23 -0500 Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7D67B12AEB; Tue, 8 Nov 2022 01:29:22 -0800 (PST) Received: by mail-pj1-x1035.google.com with SMTP id b1-20020a17090a7ac100b00213fde52d49so12833120pjl.3; Tue, 08 Nov 2022 01:29:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=references:in-reply-to:message-id:date:subject:cc:to:from:from:to :cc:subject:date:message-id:reply-to; bh=Pnl7ZG08BhjAH6w2uqmjyTgSyZMRz6TVlKCPmOlFFnw=; b=pqyf9Mvi/QB8JnIQTEouecCNDmv6LLuj2YKC0kTdOedBz4uSPyMY751nDpC58LvKLH wEKo8smrgfj38+moOCQ/L9WPD189rxa8Vo7zv6eroS4NHxd7dr1bjf6r5VWOIVpoj4Hf DcKNtGzr2SYSbYATtVp9N4fiZ1Ld3kuGomjX7a5Q8SKPnIAqv/DB7czm897rLbL+5JmH tO4xd2h7AXIIxsv0zgEwaSOW6enGw7ecd//3dAqNR35h0fYBqk8usM72beDm4p+NJYH7 ZG2tIj2rkFU2HOHWweBD6wqQAH6O4n8IunFFiB1+7Pc8BAWM8HmSD1obAmggxvyVMaRP 4WiQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=references:in-reply-to:message-id:date:subject:cc:to:from :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Pnl7ZG08BhjAH6w2uqmjyTgSyZMRz6TVlKCPmOlFFnw=; b=sd1O4kBTIIbChu4/XTgEfVBWjVMlXYV/EnfixIHH4sbZds0HPiMOUeAsquOLS2TnEz Nu/1USfhOmgs9QRA2lFTpcsm4DQTjQR6YBJnEcPDcxeFz2ltfBHm6PLkdXXl+YFHEHGj NlwT5MzRUpcuPkH8b67NkqLPmrlE8SuBj1PNoAtRy3RHX6mW9br/4knvVsjE9OIgnMCk RwYSKHCAr4sxi7jLL84FHMMyr0xsU/wj8bGrngTVJbHFijrtZHAcVDm0wJG+Cpf7jlPm ODPyFBpos/riXsf+6rtygOLGedi8os9poDjkfcrKHgx76jWi/j8mo+lco/O/g2SimWv+ BajQ== X-Gm-Message-State: ACrzQf21etK5AJiqRwqodIQmnpNDDbr03Jvn2n6oOMJ3gpN0G72KoSak xm0F1ssn4bvOBvHcq8CuPkc= X-Received: by 2002:a17:90a:1657:b0:213:7c4d:768a with SMTP id x23-20020a17090a165700b002137c4d768amr65617879pje.199.1667899762087; Tue, 08 Nov 2022 01:29:22 -0800 (PST) Received: from localhost.localdomain ([180.217.157.203]) by smtp.gmail.com with ESMTPSA id x17-20020a170902ec9100b00186727e5f5csm6467147plg.248.2022.11.08.01.29.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Nov 2022 01:29:21 -0800 (PST) From: Jim Liu X-Google-Original-From: Jim Liu To: JJLIU0@nuvoton.com, jim.t90615@gmail.com, KWLIU@nuvoton.com, linus.walleij@linaro.org, brgl@bgdev.pl, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, openbmc@lists.ozlabs.org Subject: [PATCH v2 3/3] dt-bindings: gpio: Add Nuvoton NPCM750 serial I/O expansion interface(SGPIO) Date: Tue, 8 Nov 2022 17:28:40 +0800 Message-Id: <20221108092840.14945-4-JJLIU0@nuvoton.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20221108092840.14945-1-JJLIU0@nuvoton.com> References: <20221108092840.14945-1-JJLIU0@nuvoton.com> X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1748919956479952877?= X-GMAIL-MSGID: =?utf-8?q?1748919956479952877?= NPCM750 include two SGPIO modules. Each module supports up to 64 input and 64 output pins. the output pin must be serial to parallel device(such as the hc595) the input in must be parallel to serial device(such as the hc165) Signed-off-by: Jim Liu --- Changes for v2: - modify description --- .../bindings/gpio/nuvoton,sgpio.yaml | 79 +++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/nuvoton,sgpio.yaml + status = "disabled"; + }; diff --git a/Documentation/devicetree/bindings/gpio/nuvoton,sgpio.yaml b/Documentation/devicetree/bindings/gpio/nuvoton,sgpio.yaml new file mode 100644 index 000000000000..331e3cb28b98 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/nuvoton,sgpio.yaml @@ -0,0 +1,79 @@ +# 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, + NPCM7xx/NPCM8xx have two sgpio module each module can support up + to 64 output pins,and up to 64 input pin. + Nuvoton NPCM750 SGPIO module is base on serial to parallel IC (HC595) + and parallel to serial IC (HC165). + GPIO pins can be programmed to support the following options + - Support interrupt option for each input port and various interrupt + sensitivity option (level-high, level-low, edge-high, edge-low) + - Directly connected to APB bus and its shift clock is from APB bus clock + divided by a programmable value. + - nin_gpios is number of input GPIO lines + - nout_gpios is number of output GPIO lines + - ngpios is number of nin_gpios GPIO lines and nout_gpios GPIO lines. + +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 + + nin_gpios: true + + nout_gpios: true + + bus-frequency: true + +required: + - compatible + - reg + - gpio-controller + - '#gpio-cells' + - interrupts + - nin_gpios + - nout_gpios + - clocks + - bus-frequency + +additionalProperties: false + +examples: + - | + #include + #include + sgpio1: sgpio@101000 { + compatible = "nuvoton,npcm750-sgpio"; + reg = <0x101000 0x200>; + clocks = <&clk NPCM7XX_CLK_APB3>; + interrupts = ; + bus-frequency = <16000000>; + gpio-controller; + #gpio-cells = <2>; + nin_gpios = <64>; + nout_gpios = <64>;