From patchwork Mon May 24 12:05:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robert Marko X-Patchwork-Id: 447586 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E441DC04FF3 for ; Mon, 24 May 2021 12:05:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C80E96109F for ; Mon, 24 May 2021 12:05:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232808AbhEXMHT (ORCPT ); Mon, 24 May 2021 08:07:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56186 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232793AbhEXMHR (ORCPT ); Mon, 24 May 2021 08:07:17 -0400 Received: from mail-wr1-x42c.google.com (mail-wr1-x42c.google.com [IPv6:2a00:1450:4864:20::42c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C4465C061574 for ; Mon, 24 May 2021 05:05:49 -0700 (PDT) Received: by mail-wr1-x42c.google.com with SMTP id x8so28273574wrq.9 for ; Mon, 24 May 2021 05:05:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sartura-hr.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=pSikriGY8WxnD/HvwIHFkiIuj1QNzjOxk1k9wUWdYDc=; b=kdjX4LaXBUMzusDS7bfBuzNlSGjp91t5RXFOlJq2aJFBnw/x01MzTS/KIPmW4zm6mh Jpi6GIinJN6feaBAML0vAM7CnfDijG1Xc+A3ekhCWSM7z1EYrEMmQ8pOjy+t4eJxAA3J J4uYpF48/PRKBN4/rJFVlEfoEliqJCvpTrcD+b3+m5eNDLGG1J1eQR+zPJ5swOqTnhk3 40VqKjQGIn4uKppjHlde0GJqHMh4QihNNuaFPiSh8vGqzictkatP8qDhdSKvEDic4d+K uZ1t3zUeNyICHiwKVYpljn8E1giFPsZYu+SSNs6zUKuWoUBqksQyTaMWIF1uSjr221mr bKqg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=pSikriGY8WxnD/HvwIHFkiIuj1QNzjOxk1k9wUWdYDc=; b=HnCyxOsDz1I7VtYS5GE9ca8s4+w+u2P909zOHwfFfvXYD49ojmAmB9IMLVZRAaYv20 6POuVYZ7F4wcmeR6/JX7s5qHuPzg5G4dHpjiQqv3HiHl5fiSPlEdvFR66yfMZYQNfiCt 7U5+c+Z20RBPA6boopZitPkCqMPvjoxrYrIMZVr5Rr5W7fv4pKqfrjtS6He7N5eORAH4 MgRW/gAN71jAoCXhrdbICgzXG1wKaIhHSfQ4ZY+tv7dAcMr2tDGbzN0Zy9phzfmTYoq4 XKvFJdoWVWt2Aj74wcQXEoDKp3oyx/uCaRuhaxBoGVZM5b2Pnty46UT5j+4gOMihilXJ VmGQ== X-Gm-Message-State: AOAM530BdOM7s0/5yHYTIx/+jD+uOnmjcuVZVp+fzECFXiQjiHjFrmwB K7FzsvxpvvOOPU9GxyQNUD2ZSg== X-Google-Smtp-Source: ABdhPJxsxqXT3b6O4xVF+Wt+m1QGBD7G4gRM4JPeXkZBtgChfsei9VrOJKPzjeYgrsngJ7fIbZ3VYg== X-Received: by 2002:a05:6000:1145:: with SMTP id d5mr22270356wrx.404.1621857948390; Mon, 24 May 2021 05:05:48 -0700 (PDT) Received: from localhost.localdomain ([188.252.220.224]) by smtp.googlemail.com with ESMTPSA id b10sm14342856wrr.27.2021.05.24.05.05.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 May 2021 05:05:48 -0700 (PDT) From: Robert Marko To: linus.walleij@linaro.org, bgolaszewski@baylibre.com, robh+dt@kernel.org, lee.jones@linaro.org, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: luka.perkov@sartura.hr, jmp@epiphyte.org, pmenzel@molgen.mpg.de, buczek@molgen.mpg.de, Robert Marko Subject: [PATCH v2 3/4] dt-bindings: mfd: Add Delta TN48M CPLD drivers bindings Date: Mon, 24 May 2021 14:05:38 +0200 Message-Id: <20210524120539.3267145-3-robert.marko@sartura.hr> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210524120539.3267145-1-robert.marko@sartura.hr> References: <20210524120539.3267145-1-robert.marko@sartura.hr> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Add binding documents for the Delta TN48M CPLD drivers. Signed-off-by: Robert Marko --- Changes in v2: * Implement MFD as a simple I2C MFD * Add GPIO bindings as separate .../bindings/gpio/delta,tn48m-gpio.yaml | 42 ++++++++++ .../bindings/mfd/delta,tn48m-cpld.yaml | 81 +++++++++++++++++++ 2 files changed, 123 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/delta,tn48m-gpio.yaml create mode 100644 Documentation/devicetree/bindings/mfd/delta,tn48m-cpld.yaml diff --git a/Documentation/devicetree/bindings/gpio/delta,tn48m-gpio.yaml b/Documentation/devicetree/bindings/gpio/delta,tn48m-gpio.yaml new file mode 100644 index 000000000000..aca646aecb12 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/delta,tn48m-gpio.yaml @@ -0,0 +1,42 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/delta,tn48m-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Delta Networks TN48M CPLD GPIO controller + +maintainers: + - Robert Marko + +description: | + This module is part of the Delta TN48M multi-function device. For more + details see ../mfd/delta,tn48m-cpld.yaml. + + GPIO controller module provides GPIO-s for the SFP slots. + It is split into 3 controllers, one output only for the SFP TX disable + pins, one input only for the SFP present pins and one input only for + the SFP LOS pins. + +properties: + compatible: + enum: + - delta,tn48m-gpio-sfp-tx-disable + - delta,tn48m-gpio-sfp-present + - delta,tn48m-gpio-sfp-los + + reg: + maxItems: 1 + + "#gpio-cells": + const: 2 + + gpio-controller: true + +required: + - compatible + - reg + - "#gpio-cells" + - gpio-controller + +additionalProperties: false diff --git a/Documentation/devicetree/bindings/mfd/delta,tn48m-cpld.yaml b/Documentation/devicetree/bindings/mfd/delta,tn48m-cpld.yaml new file mode 100644 index 000000000000..055e09129f86 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/delta,tn48m-cpld.yaml @@ -0,0 +1,81 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/delta,tn48m-cpld.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Delta Networks TN48M CPLD controller + +maintainers: + - Robert Marko + +description: | + Lattice CPLD onboard the TN48M switches is used for system + management. + + It provides information about the hardware model, revision, + PSU status etc. + + It is also being used as a GPIO expander for the SFP slots. + +properties: + compatible: + const: delta,tn48m-cpld + + reg: + description: + I2C device address. + maxItems: 1 + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + +required: + - compatible + - reg + - "#address-cells" + - "#size-cells" + +patternProperties: + "^gpio(@[0-9a-f]+)?$": + $ref: ../gpio/delta,tn48m-gpio.yaml + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + cpld@41 { + compatible = "delta,tn48m-cpld"; + reg = <0x41>; + #address-cells = <1>; + #size-cells = <0>; + + gpio@31 { + compatible = "delta,tn48m-gpio-sfp-tx-disable"; + reg = <0x31>; + gpio-controller; + #gpio-cells = <2>; + }; + + gpio@3a { + compatible = "delta,tn48m-gpio-sfp-present"; + reg = <0x3a>; + gpio-controller; + #gpio-cells = <2>; + }; + + gpio@40 { + compatible = "delta,tn48m-gpio-sfp-los"; + reg = <0x40>; + gpio-controller; + #gpio-cells = <2>; + }; + }; + };