From patchwork Mon May 24 12:05:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robert Marko X-Patchwork-Id: 446559 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=unavailable 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 6EDB7C2B9F8 for ; Mon, 24 May 2021 12:05:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 529E6613B6 for ; Mon, 24 May 2021 12:05:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232662AbhEXMHP (ORCPT ); Mon, 24 May 2021 08:07:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56162 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232656AbhEXMHO (ORCPT ); Mon, 24 May 2021 08:07:14 -0400 Received: from mail-wm1-x334.google.com (mail-wm1-x334.google.com [IPv6:2a00:1450:4864:20::334]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A1196C061756 for ; Mon, 24 May 2021 05:05:46 -0700 (PDT) Received: by mail-wm1-x334.google.com with SMTP id t206so14792053wmf.0 for ; Mon, 24 May 2021 05:05:46 -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:mime-version :content-transfer-encoding; bh=vupoXXFVGGxP68p+rVk16msOI4FEaKWl6TGrTzM+/sE=; b=Ag1pM4LStX8QGVFfznn4U8xkqj3W9vY0n9DY5CJuxtlFT2yt/cHYP9vzAhrE3co0zR x1Iwhz6CF8CSQbJeZpse2cm+ha+HEeQY1E31tovMcsmnZcIbhXRWHL4L6SO2qSP0uaGj xAsiH3GXZPz3MN1iDjjcPv6f3o1ffIPcmyXFFlyZgRSR9GGiKzBSZmHUcB8Tk//bCOzD A45Y5WLUUsYO67zsvmxgaiLRxXeAJO2jwR3E0uIK1zqPKh4GbJJWyi/a0QyytL0Q8VPL e37z956H4a4qwtRP6KsP87w6PG/qHhfdza9TlLUak8je5WZikdWuX7wn1ZW/pPQ4A0lf 5jbw== 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:mime-version :content-transfer-encoding; bh=vupoXXFVGGxP68p+rVk16msOI4FEaKWl6TGrTzM+/sE=; b=hSaH351Ks6U4KEdf5L66lX2bcVSCunU6xvoX6kKtgRlRS6kJttVrwwoq3JJ922SMTZ DsHh5Y7slAnC1GtZNh/dmnPTrSErSqEcTtoDbYI6icpFUaK4GfywASGwRdscsteSOktk r6VeFhNvD4RtEgv6ogGCkrdEalKmWn9Bdq5Ij2AAGranMrLdgBPfkRTD35PL4pd14QD3 D9Zv+POHG9QAh+aBmGMmg+dPRD9N9NdNtYZ1xqAP4YW+u1C9u90N43gzAtt5JdrI3qQB PRksQq76/WGb1mOs1Q2zTZejQNKnjx15mb3yxEJ2CQkbwbOa3StrcJSHFKSuhYhlTURC e5/w== X-Gm-Message-State: AOAM533Il2+MRGeW6BPx6ecmd9ibOGXSPwIj/NQHKBeGys7mqj4Qijse hTpwaPhcdhUPbkt3tffPFOMetA== X-Google-Smtp-Source: ABdhPJy0FdiN1uxAQlj8gKVgakH2g+fVy09MLmYddnv3AT9gmfel4PWdCbeqJ6fp87avQbWglhPTdQ== X-Received: by 2002:a1c:f303:: with SMTP id q3mr19903841wmq.9.1621857945250; Mon, 24 May 2021 05:05:45 -0700 (PDT) Received: from localhost.localdomain ([188.252.220.224]) by smtp.googlemail.com with ESMTPSA id b10sm14342856wrr.27.2021.05.24.05.05.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 May 2021 05:05:44 -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 1/4] mfd: simple-mfd-i2c: Add Delta TN48M CPLD support Date: Mon, 24 May 2021 14:05:36 +0200 Message-Id: <20210524120539.3267145-1-robert.marko@sartura.hr> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Delta TN48M switches have a Lattice CPLD that serves multiple purposes including being a GPIO expander. So, lets use the simple I2C MFD driver to provide the MFD core. Also add a virtual symbol which pulls in the simple-mfd-i2c driver and provide a common symbol on which the subdevice drivers can depend on. Signed-off-by: Robert Marko Reviewed-by: Linus Walleij --- Changes in v2: * Drop the custom MFD driver and header * Use simple I2C MFD driver drivers/mfd/Kconfig | 10 ++++++++++ drivers/mfd/simple-mfd-i2c.c | 1 + 2 files changed, 11 insertions(+) diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 5c7f2b100191..1042424c5678 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -297,6 +297,16 @@ config MFD_ASIC3 This driver supports the ASIC3 multifunction chip found on many PDAs (mainly iPAQ and HTC based ones) +config MFD_TN48M_CPLD + tristate "Delta Networks TN48M switch CPLD driver" + depends on I2C + select MFD_SIMPLE_MFD_I2C + help + Select this option to enable support for Delta Networks TN48M switch + CPLD. It consists of MFD and GPIO drivers. CPLD provides GPIOS-s + for the SFP slots as well as power supply related information. + SFP support depends on the GPIO driver being selected. + config PMIC_DA903X bool "Dialog Semiconductor DA9030/DA9034 PMIC Support" depends on I2C=y diff --git a/drivers/mfd/simple-mfd-i2c.c b/drivers/mfd/simple-mfd-i2c.c index 87f684cff9a1..af8e91781417 100644 --- a/drivers/mfd/simple-mfd-i2c.c +++ b/drivers/mfd/simple-mfd-i2c.c @@ -39,6 +39,7 @@ static int simple_mfd_i2c_probe(struct i2c_client *i2c) static const struct of_device_id simple_mfd_i2c_of_match[] = { { .compatible = "kontron,sl28cpld" }, + { .compatible = "delta,tn48m-cpld" }, {} }; MODULE_DEVICE_TABLE(of, simple_mfd_i2c_of_match); 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: 446558 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=unavailable 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 0EEFEC47086 for ; Mon, 24 May 2021 12:05:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E5EAA613B0 for ; Mon, 24 May 2021 12:05:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232831AbhEXMHT (ORCPT ); Mon, 24 May 2021 08:07:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56188 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232801AbhEXMHS (ORCPT ); Mon, 24 May 2021 08:07:18 -0400 Received: from mail-wr1-x429.google.com (mail-wr1-x429.google.com [IPv6:2a00:1450:4864:20::429]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C5231C061756 for ; Mon, 24 May 2021 05:05:49 -0700 (PDT) Received: by mail-wr1-x429.google.com with SMTP id n4so2359696wrw.3 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=cx14L5vxEqjhesVBj+OH0hEzb0f04uPKhJJwmL9HvtclQOD4xsgzQ1hk2zJSoK7Fen UUVXC1UehIGNuM6JBUg8PRfCDJElJf1k5cxMYCynG2by/5/NqJ333B9tz8j7UZTrotGv bNBaMb6dnwGtlK0BxFXsNMJTJrFhY/EE4g94J/rqXK7lOl8gMlRm63fW22Kl3OMMYjXg Lq6t19MqjKaNwEwiuLvHv+x8kxA+Q1PH7Ia3H+GUlCgxKDOxPCL/UWG95JNimuTMEIDw sMoVrQ1jWuhlaolyoFW5X2IlMNL/I4vDkliAXeH4sN21bgIOEl9WRzfAxPii0C3t8QRN buTQ== X-Gm-Message-State: AOAM5329of9A2KCZa5N9RVTbI+G6w5ZCsynfFNg511HT41QLHLUTsIMH Anqft8cDDhOV5Yziroqx53HX0Q== 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: devicetree@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>; + }; + }; + };