From patchwork Tue Aug 24 12:44:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luka Kovacic X-Patchwork-Id: 502586 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=-16.7 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, URIBL_BLOCKED, 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 24433C4338F for ; Tue, 24 Aug 2021 12:46:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 064FC61357 for ; Tue, 24 Aug 2021 12:46:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237308AbhHXMra (ORCPT ); Tue, 24 Aug 2021 08:47:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53188 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237135AbhHXMr2 (ORCPT ); Tue, 24 Aug 2021 08:47:28 -0400 Received: from mail-wm1-x32d.google.com (mail-wm1-x32d.google.com [IPv6:2a00:1450:4864:20::32d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D61EEC061764 for ; Tue, 24 Aug 2021 05:46:43 -0700 (PDT) Received: by mail-wm1-x32d.google.com with SMTP id x2-20020a1c7c02000000b002e6f1f69a1eso1781329wmc.5 for ; Tue, 24 Aug 2021 05:46:43 -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=jgaaiT/CWG3/PhxsQccIFMhDHs05bvsHs/Xpo61jD+s=; b=ylyNxQ2iiY6Cm5+JWs9eZQ3nVZlNiiegEymsSuJYuOxy9/7WhOxaDiWNFnB77lHsVo HucaoOisb9NVcOA29OOlgqk6GthLKXnWIzWZck7ZezWtzgg9djo6GhnuImV8yPkQWFoJ ZKELx4hL5a/tcMsOdTKqAvb4qU/1H29RKuxbOQf7XyPtjV5Byu8FhYidKv+fekX7AwiJ 2tLhWe6qWFHErjJC22cocIQTHGt/gqWduev7YLNiqrv0YqMG2KRSQEpvs12l0kWRO5zR 4AC7M5Qse2LkphMpHZchcONwH2BkqtmCSt04If9YL5FlYtAhWp075SrTKbqAdLmpf6ry Gh6Q== 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=jgaaiT/CWG3/PhxsQccIFMhDHs05bvsHs/Xpo61jD+s=; b=IgxDEsnZm2f7XB7BQRJkJBwLdn5/lFD06ANhvFinPB54UAykJZhdI70xoEuv5hJDX2 /QBLEOrihwmwvhpgzsjBYfK7LImTp8HA8nKM8UslDnWVdxhvyJzlOifc5Ukgy9RW12w7 se+cALyyDX1w2x4A928k29lzO7tO1O24mp0uGjDArQl49yFhe+ArmGSmwi18nmIQgGsx ONSHpSGjt0n0m/g8v0WYyg4q24FZ5nquwCWIHu5g8wZf8eoedFTw+FakGxKzQnbUGCrZ 9kEK7AJcicyRaqu2EKJZ79cwfoyR21QWIDg+xBlbwlHK4yj6GTIQItrsx1qDTZOagm2n yiZw== X-Gm-Message-State: AOAM5323OO1pcRAp7y38VQ13/y8dlaWLDomJYKNd6mcmrqJKmnKCRwyd bx4NWnme+Zmy3w0v2F2Ui9eOug== X-Google-Smtp-Source: ABdhPJxMEmafbF3plTR4UC1qva2vnU3YJZOI+6is+3n6mOCnOMRTBps4IsZmPdkw9XgZDuB+LHrfZQ== X-Received: by 2002:a7b:cc16:: with SMTP id f22mr3893973wmh.99.1629809202423; Tue, 24 Aug 2021 05:46:42 -0700 (PDT) Received: from localhost.localdomain ([2a00:ee2:4b0d:3001:fe74:75c8:e909:251b]) by smtp.gmail.com with ESMTPSA id i14sm2255454wmq.40.2021.08.24.05.46.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Aug 2021 05:46:42 -0700 (PDT) From: Luka Kovacic To: linux-doc@vger.kernel.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, geert+renesas@glider.be, Max.Merchel@tq-group.com, linux@rempel-privat.de, daniel@0x0f.com, shawnguo@kernel.org, sam@ravnborg.org, arnd@arndb.de, krzysztof.kozlowski@canonical.com, pavo.banicevic@sartura.hr, corbet@lwn.net, lee.jones@linaro.org, pavel@ucw.cz, robh+dt@kernel.org, linux@roeck-us.net, jdelvare@suse.com, goran.medic@sartura.hr, luka.perkov@sartura.hr, robert.marko@sartura.hr Cc: Luka Kovacic Subject: [PATCH v9 1/7] dt-bindings: Add IEI vendor prefix and IEI WT61P803 PUZZLE driver bindings Date: Tue, 24 Aug 2021 14:44:32 +0200 Message-Id: <20210824124438.14519-2-luka.kovacic@sartura.hr> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210824124438.14519-1-luka.kovacic@sartura.hr> References: <20210824124438.14519-1-luka.kovacic@sartura.hr> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org Add the IEI WT61P803 PUZZLE Device Tree bindings for MFD, HWMON and LED drivers. A new vendor prefix is also added accordingly for IEI Integration Corp. Signed-off-by: Luka Kovacic Signed-off-by: Pavo Banicevic Cc: Luka Perkov Cc: Robert Marko --- .../hwmon/iei,wt61p803-puzzle-hwmon.yaml | 53 ++++++++++++ .../leds/iei,wt61p803-puzzle-leds.yaml | 39 +++++++++ .../bindings/mfd/iei,wt61p803-puzzle.yaml | 82 +++++++++++++++++++ .../devicetree/bindings/vendor-prefixes.yaml | 2 + 4 files changed, 176 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/iei,wt61p803-puzzle-hwmon.yaml create mode 100644 Documentation/devicetree/bindings/leds/iei,wt61p803-puzzle-leds.yaml create mode 100644 Documentation/devicetree/bindings/mfd/iei,wt61p803-puzzle.yaml diff --git a/Documentation/devicetree/bindings/hwmon/iei,wt61p803-puzzle-hwmon.yaml b/Documentation/devicetree/bindings/hwmon/iei,wt61p803-puzzle-hwmon.yaml new file mode 100644 index 000000000000..c24a24e90495 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/iei,wt61p803-puzzle-hwmon.yaml @@ -0,0 +1,53 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwmon/iei,wt61p803-puzzle-hwmon.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: IEI WT61P803 PUZZLE MCU HWMON module from IEI Integration Corp. + +maintainers: + - Luka Kovacic + +description: | + This module is a part of the IEI WT61P803 PUZZLE MFD device. For more details + see Documentation/devicetree/bindings/mfd/iei,wt61p803-puzzle.yaml. + + The HWMON module is a sub-node of the MCU node in the Device Tree. + +properties: + compatible: + const: iei,wt61p803-puzzle-hwmon + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + +patternProperties: + "^fan-group@[0-1]$": + type: object + properties: + reg: + minimum: 0 + maximum: 1 + description: + Fan group ID + + cooling-levels: + minItems: 1 + maxItems: 255 + description: + Cooling levels for the fans (PWM value mapping) + description: | + Properties for each fan group. + required: + - reg + +required: + - compatible + - "#address-cells" + - "#size-cells" + +additionalProperties: false diff --git a/Documentation/devicetree/bindings/leds/iei,wt61p803-puzzle-leds.yaml b/Documentation/devicetree/bindings/leds/iei,wt61p803-puzzle-leds.yaml new file mode 100644 index 000000000000..af219ddc190f --- /dev/null +++ b/Documentation/devicetree/bindings/leds/iei,wt61p803-puzzle-leds.yaml @@ -0,0 +1,39 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/iei,wt61p803-puzzle-leds.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: IEI WT61P803 PUZZLE MCU LED module from IEI Integration Corp. + +maintainers: + - Luka Kovacic + +description: | + This module is a part of the IEI WT61P803 PUZZLE MFD device. For more details + see Documentation/devicetree/bindings/mfd/iei,wt61p803-puzzle.yaml. + + The LED module is a sub-node of the MCU node in the Device Tree. + +properties: + compatible: + const: iei,wt61p803-puzzle-leds + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + led@0: + type: object + $ref: common.yaml + description: | + Properties for a single LED. + +required: + - compatible + - "#address-cells" + - "#size-cells" + +additionalProperties: false diff --git a/Documentation/devicetree/bindings/mfd/iei,wt61p803-puzzle.yaml b/Documentation/devicetree/bindings/mfd/iei,wt61p803-puzzle.yaml new file mode 100644 index 000000000000..8ce18c29177b --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/iei,wt61p803-puzzle.yaml @@ -0,0 +1,82 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/iei,wt61p803-puzzle.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: IEI WT61P803 PUZZLE MCU from IEI Integration Corp. + +maintainers: + - Luka Kovacic + +description: | + IEI WT61P803 PUZZLE MCU is embedded in some IEI Puzzle series boards. + It's used for controlling system power states, fans, LEDs and temperature + sensors. + + For Device Tree bindings of other sub-modules (HWMON, LEDs) refer to the + binding documents under the respective subsystem directories. + +properties: + compatible: + const: iei,wt61p803-puzzle + + current-speed: + description: + Serial bus speed in bps + maxItems: 1 + + enable-beep: true + + hwmon: + $ref: /schemas/hwmon/iei,wt61p803-puzzle-hwmon.yaml + + leds: + $ref: /schemas/leds/iei,wt61p803-puzzle-leds.yaml + +required: + - compatible + - current-speed + +additionalProperties: false + +examples: + - | + #include + serial { + mcu { + compatible = "iei,wt61p803-puzzle"; + current-speed = <115200>; + enable-beep; + + leds { + compatible = "iei,wt61p803-puzzle-leds"; + #address-cells = <1>; + #size-cells = <0>; + + led@0 { + reg = <0>; + function = LED_FUNCTION_POWER; + color = ; + }; + }; + + hwmon { + compatible = "iei,wt61p803-puzzle-hwmon"; + #address-cells = <1>; + #size-cells = <0>; + + fan-group@0 { + #cooling-cells = <2>; + reg = <0x00>; + cooling-levels = <64 102 170 230 250>; + }; + + fan-group@1 { + #cooling-cells = <2>; + reg = <0x01>; + cooling-levels = <64 102 170 230 250>; + }; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml index 07fb0d25fc15..2d800454542e 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml @@ -515,6 +515,8 @@ patternProperties: description: IC Plus Corp. "^idt,.*": description: Integrated Device Technologies, Inc. + "^iei,.*": + description: IEI Integration Corp. "^ifi,.*": description: Ingenieurburo Fur Ic-Technologie (I/F/I) "^ilitek,.*": From patchwork Tue Aug 24 12:44:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luka Kovacic X-Patchwork-Id: 502024 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=-16.7 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, URIBL_BLOCKED, 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 304D3C4320A for ; Tue, 24 Aug 2021 12:46:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 150CB61374 for ; Tue, 24 Aug 2021 12:46:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237211AbhHXMrf (ORCPT ); Tue, 24 Aug 2021 08:47:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53194 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237296AbhHXMra (ORCPT ); Tue, 24 Aug 2021 08:47:30 -0400 Received: from mail-wm1-x336.google.com (mail-wm1-x336.google.com [IPv6:2a00:1450:4864:20::336]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4B423C0617AD for ; Tue, 24 Aug 2021 05:46:46 -0700 (PDT) Received: by mail-wm1-x336.google.com with SMTP id g138so12715599wmg.4 for ; Tue, 24 Aug 2021 05:46:46 -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:in-reply-to:references :mime-version:content-transfer-encoding; bh=RlhMCNVQj8tgI3bOFGUOyJK2bXilK+DtFnBKbul2qAc=; b=e96UKQn0biz6omQY/6P+Y58whEfQhm2BfPpmQncCFJL2+DCWAom4VE6ypBYOy4HJEZ 4D+1U+r8/xa4g2L/o8/kaLwE2w+vR/wqI0nfkRwYNg/oW4a1KjAbXWJm1vLWH7NwvAcI ON99ldIHGIa8XXpyT8Q/55eg6fljdczV/oEoZuVPI/XYXMZtNz3MlQ/l9D+oW6qSC0sl cBieabU/BVv4OznPcvKOqGG4cRFpkXZqNJvyg+/EmGuT/ACBzRsynj3RGr+sgY43qeVq /g9w5QTEEabN6fkJKOV7mLRzB2McQXqYvdfxlwkqg8qN6QCAlS0IRyaadaPtevCfmNEB oOcw== 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=RlhMCNVQj8tgI3bOFGUOyJK2bXilK+DtFnBKbul2qAc=; b=HQNT2+h/6PWzXRhrwI4vU+v60OYcvT2vI+3cvALAX6Kgxm+fgZyp2ZyVNTpwN3r3Nt mKGNfbNwIzFJBt+fZ9dCSarj+7+QYSbMddzJa5if96f7wH201P1SHaWrTgoUHZK3RrU/ DOC37czGU8KCK/AKb414Ar8rygreMML9EwEjrkQqro1BRjSz/V2iga3zGJM+JhEdxWDi dV02VxEJoHYBXtT2tw3/tlBdW8eAXdDuFIsJdPA9BS+YoEf/1wvrV1nOpIq7+BjjVo0s OoFbmm2k8f3eW+Kn44VSyiQP1SVda3lre7DqQM6oLttMDlQ3n33oZ7yjwuB2RB74+c+V uffw== X-Gm-Message-State: AOAM530qRbWKX/6hRlmmW+mxFZ3mxQq8TMM2vO32r5ghV7PTxPbknRz/ HW7xyZumt6IsPyV5DeHcOg86lg== X-Google-Smtp-Source: ABdhPJy9Nu5kFPseS2CPJZONoD6pnbAGlOY506wDQhQjVuf8khfJ1mKhYDgigcuZzQ83feWVWsWtLQ== X-Received: by 2002:a05:600c:35d2:: with SMTP id r18mr3964271wmq.116.1629809204635; Tue, 24 Aug 2021 05:46:44 -0700 (PDT) Received: from localhost.localdomain ([2a00:ee2:4b0d:3001:fe74:75c8:e909:251b]) by smtp.gmail.com with ESMTPSA id i14sm2255454wmq.40.2021.08.24.05.46.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Aug 2021 05:46:44 -0700 (PDT) From: Luka Kovacic To: linux-doc@vger.kernel.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, geert+renesas@glider.be, Max.Merchel@tq-group.com, linux@rempel-privat.de, daniel@0x0f.com, shawnguo@kernel.org, sam@ravnborg.org, arnd@arndb.de, krzysztof.kozlowski@canonical.com, pavo.banicevic@sartura.hr, corbet@lwn.net, lee.jones@linaro.org, pavel@ucw.cz, robh+dt@kernel.org, linux@roeck-us.net, jdelvare@suse.com, goran.medic@sartura.hr, luka.perkov@sartura.hr, robert.marko@sartura.hr Cc: Luka Kovacic Subject: [PATCH v9 2/7] drivers: mfd: Add a driver for IEI WT61P803 PUZZLE MCU Date: Tue, 24 Aug 2021 14:44:33 +0200 Message-Id: <20210824124438.14519-3-luka.kovacic@sartura.hr> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210824124438.14519-1-luka.kovacic@sartura.hr> References: <20210824124438.14519-1-luka.kovacic@sartura.hr> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org Add a driver for the IEI WT61P803 PUZZLE microcontroller, used in some IEI Puzzle series devices. The microcontroller controls system power, temperature sensors, fans and LEDs. This driver implements the core functionality for device communication over the system serial (serdev bus). It handles MCU messages and the internal MCU properties. Some properties can be managed over sysfs. Signed-off-by: Luka Kovacic Signed-off-by: Pavo Banicevic Cc: Luka Perkov Cc: Robert Marko --- drivers/mfd/Kconfig | 8 + drivers/mfd/Makefile | 1 + drivers/mfd/iei-wt61p803-puzzle.c | 908 ++++++++++++++++++++++++ include/linux/mfd/iei-wt61p803-puzzle.h | 66 ++ 4 files changed, 983 insertions(+) create mode 100644 drivers/mfd/iei-wt61p803-puzzle.c create mode 100644 include/linux/mfd/iei-wt61p803-puzzle.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 6a3fd2d75f96..c2183eb0775f 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -2170,6 +2170,14 @@ config SGI_MFD_IOC3 If you have an SGI Origin, Octane, or a PCI IOC3 card, then say Y. Otherwise say N. +config MFD_IEI_WT61P803_PUZZLE + tristate "IEI WT61P803 PUZZLE MCU driver" + depends on SERIAL_DEV_BUS + help + IEI WT61P803 PUZZLE is a system power management microcontroller + used for fan control, temperature sensor reading, LED control + and system identification. + config MFD_INTEL_M10_BMC tristate "Intel MAX 10 Board Management Controller" depends on SPI_MASTER diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 8116c19d5fd4..42b9767ec37a 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -236,6 +236,7 @@ obj-$(CONFIG_MFD_DLN2) += dln2.o obj-$(CONFIG_MFD_RT4831) += rt4831.o obj-$(CONFIG_MFD_RT5033) += rt5033.o obj-$(CONFIG_MFD_SKY81452) += sky81452.o +obj-$(CONFIG_MFD_IEI_WT61P803_PUZZLE) += iei-wt61p803-puzzle.o intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o diff --git a/drivers/mfd/iei-wt61p803-puzzle.c b/drivers/mfd/iei-wt61p803-puzzle.c new file mode 100644 index 000000000000..596ecbc65627 --- /dev/null +++ b/drivers/mfd/iei-wt61p803-puzzle.c @@ -0,0 +1,908 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* IEI WT61P803 PUZZLE MCU Driver + * System management microcontroller for fan control, temperature sensor reading, + * LED control and system identification on IEI Puzzle series ARM-based appliances. + * + * Copyright (C) 2020 Sartura Ltd. + * Author: Luka Kovacic + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* start, payload and XOR checksum at end */ +#define IEI_WT61P803_PUZZLE_MAX_COMMAND_LENGTH (1 + 20 + 1) +#define IEI_WT61P803_PUZZLE_RESP_BUF_SIZE 512 + +#define IEI_WT61P803_PUZZLE_MAC_LENGTH 17 +#define IEI_WT61P803_PUZZLE_SN_LENGTH 36 +#define IEI_WT61P803_PUZZLE_VERSION_LENGTH 6 +#define IEI_WT61P803_PUZZLE_BUILD_INFO_LENGTH 16 +#define IEI_WT61P803_PUZZLE_PROTOCOL_VERSION_LENGTH 8 +#define IEI_WT61P803_PUZZLE_NB_MAC 8 + +/* Use HZ as a timeout value throughout the driver */ +#define IEI_WT61P803_PUZZLE_GENERAL_TIMEOUT HZ + +enum iei_wt61p803_puzzle_attribute_type { + IEI_WT61P803_PUZZLE_VERSION, + IEI_WT61P803_PUZZLE_BUILD_INFO, + IEI_WT61P803_PUZZLE_BOOTLOADER_MODE, + IEI_WT61P803_PUZZLE_PROTOCOL_VERSION, + IEI_WT61P803_PUZZLE_SERIAL_NUMBER, + IEI_WT61P803_PUZZLE_MAC_ADDRESS, + IEI_WT61P803_PUZZLE_AC_RECOVERY_STATUS, + IEI_WT61P803_PUZZLE_POWER_LOSS_RECOVERY, + IEI_WT61P803_PUZZLE_POWER_STATUS, +}; + +struct iei_wt61p803_puzzle_device_attribute { + struct device_attribute dev_attr; + enum iei_wt61p803_puzzle_attribute_type type; + u8 index; +}; + +/** + * struct iei_wt61p803_puzzle_mcu_status - MCU flags state + * @ac_recovery_status_flag: AC Recovery Status Flag + * @power_loss_recovery: System recovery after power loss + * @power_status: System Power-on Method + */ +struct iei_wt61p803_puzzle_mcu_status { + u8 ac_recovery_status_flag; + u8 power_loss_recovery; + u8 power_status; +}; + +/** + * struct iei_wt61p803_puzzle_reply - MCU reply + * @size: Size of the MCU reply + * @data: Full MCU reply buffer + * @state: Current state of the packet + * @received: Was the response fullfilled + */ +struct iei_wt61p803_puzzle_reply { + size_t size; + unsigned char data[IEI_WT61P803_PUZZLE_RESP_BUF_SIZE]; + struct completion received; +}; + +/** + * struct iei_wt61p803_puzzle_mcu_version - MCU version status + * @version: Primary firmware version + * @build_info: Build date and time + * @bootloader_mode: Status of the MCU operation + * @protocol_version: MCU communication protocol version + * @serial_number: Device factory serial number + * @mac_address: Device factory MAC addresses + * + * Last element of arrays is reserved for '\0'. + */ +struct iei_wt61p803_puzzle_mcu_version { + char version[IEI_WT61P803_PUZZLE_VERSION_LENGTH + 1]; + char build_info[IEI_WT61P803_PUZZLE_BUILD_INFO_LENGTH + 1]; + bool bootloader_mode; + char protocol_version[IEI_WT61P803_PUZZLE_PROTOCOL_VERSION_LENGTH + 1]; + char serial_number[IEI_WT61P803_PUZZLE_SN_LENGTH + 1]; + char mac_address[IEI_WT61P803_PUZZLE_NB_MAC][IEI_WT61P803_PUZZLE_MAC_LENGTH + 1]; +}; + +/** + * struct iei_wt61p803_puzzle - IEI WT61P803 PUZZLE MCU Driver + * @serdev: Pointer to underlying serdev device + * @dev: Pointer to underlying dev device + * @reply_lock: Reply mutex lock + * @reply: Pointer to the iei_wt61p803_puzzle_reply struct + * @version: MCU version related data + * @status: MCU status related data + * @response_buffer Command response buffer allocation + * @lock General member mutex lock + */ +struct iei_wt61p803_puzzle { + struct serdev_device *serdev; + struct device *dev; + struct mutex reply_lock; /* lock to prevent multiple firmware calls */ + struct iei_wt61p803_puzzle_reply *reply; + struct iei_wt61p803_puzzle_mcu_version version; + struct iei_wt61p803_puzzle_mcu_status status; + unsigned char response_buffer[IEI_WT61P803_PUZZLE_BUF_SIZE]; + struct mutex lock; /* lock to protect response buffer */ +}; + +static unsigned char iei_wt61p803_puzzle_checksum(unsigned char *buf, size_t len) +{ + unsigned char checksum = 0; + size_t i; + + for (i = 0; i < len; i++) + checksum ^= buf[i]; + return checksum; +} + +static int iei_wt61p803_puzzle_process_resp(struct iei_wt61p803_puzzle *mcu, + const unsigned char *raw_resp_data, size_t size) +{ + unsigned char checksum; + + /* Check the incoming frame header */ + if (!(raw_resp_data[0] == IEI_WT61P803_PUZZLE_CMD_HEADER_START || + raw_resp_data[0] == IEI_WT61P803_PUZZLE_CMD_HEADER_START_OTHER || + (raw_resp_data[0] == IEI_WT61P803_PUZZLE_CMD_HEADER_EEPROM && + raw_resp_data[1] == IEI_WT61P803_PUZZLE_CMD_EEPROM_READ))) { + if (mcu->reply->size + size >= sizeof(mcu->reply->data)) + return -EIO; + + /* Append the frame to existing data */ + memcpy(mcu->reply->data + mcu->reply->size, raw_resp_data, size); + mcu->reply->size += size; + } else { + if (size >= sizeof(mcu->reply->data)) + return -EIO; + + /* Start processing a new frame */ + memcpy(mcu->reply->data, raw_resp_data, size); + mcu->reply->size = size; + } + + checksum = iei_wt61p803_puzzle_checksum(mcu->reply->data, mcu->reply->size - 1); + if (checksum != mcu->reply->data[mcu->reply->size - 1]) { + /* The checksum isn't matched yet, wait for new frames */ + return size; + } + + /* Received all the data */ + complete(&mcu->reply->received); + + return size; +} + +static int iei_wt61p803_puzzle_recv_buf(struct serdev_device *serdev, + const unsigned char *data, size_t size) +{ + struct iei_wt61p803_puzzle *mcu = serdev_device_get_drvdata(serdev); + int ret; + + ret = iei_wt61p803_puzzle_process_resp(mcu, data, size); + /* Return the number of processed bytes if function returns error, + * discard the remaining incoming data, since the frame this data + * belongs to is broken anyway + */ + if (ret < 0) + return size; + + return ret; +} + +static const struct serdev_device_ops iei_wt61p803_puzzle_serdev_device_ops = { + .receive_buf = iei_wt61p803_puzzle_recv_buf, + .write_wakeup = serdev_device_write_wakeup, +}; + +/** + * iei_wt61p803_puzzle_write_command_watchdog() - Watchdog of the normal cmd + * @mcu: Pointer to the iei_wt61p803_puzzle core MFD struct + * @cmd: Pointer to the char array to send (size should be content + 1 (xor)) + * @size: Size of the cmd char array + * @reply_data: Pointer to the reply/response data array (should be allocated) + * @reply_size: Pointer to size_t (size of reply_data) + * @retry_count: Number of times to retry sending the command to the MCU + */ +int iei_wt61p803_puzzle_write_command_watchdog(struct iei_wt61p803_puzzle *mcu, + unsigned char *cmd, size_t size, + unsigned char *reply_data, + size_t *reply_size, int retry_count) +{ + struct device *dev = &mcu->serdev->dev; + int ret, i; + + for (i = 0; i < retry_count; i++) { + ret = iei_wt61p803_puzzle_write_command(mcu, cmd, size, + reply_data, reply_size); + if (ret != -ETIMEDOUT) + return ret; + } + + dev_err(dev, "Command response timed out. Retries: %d\n", retry_count); + + return -ETIMEDOUT; +} +EXPORT_SYMBOL_GPL(iei_wt61p803_puzzle_write_command_watchdog); + +/** + * iei_wt61p803_puzzle_write_command() - Send a structured command to the MCU + * @mcu: Pointer to the iei_wt61p803_puzzle core MFD struct + * @cmd: Pointer to the char array to send (size should be content + 1 (xor)) + * @size: Size of the cmd char array + * @reply_data: Pointer to the reply/response data array (should be allocated) + * + * Sends a structured command to the MCU. + */ +int iei_wt61p803_puzzle_write_command(struct iei_wt61p803_puzzle *mcu, + unsigned char *cmd, size_t size, + unsigned char *reply_data, + size_t *reply_size) +{ + struct device *dev = &mcu->serdev->dev; + int ret; + + if (size <= 1 || size > IEI_WT61P803_PUZZLE_MAX_COMMAND_LENGTH) + return -EINVAL; + + mutex_lock(&mcu->reply_lock); + + cmd[size - 1] = iei_wt61p803_puzzle_checksum(cmd, size - 1); + + /* Initialize reply struct */ + reinit_completion(&mcu->reply->received); + mcu->reply->size = 0; + usleep_range(2000, 10000); + serdev_device_write_flush(mcu->serdev); + ret = serdev_device_write_buf(mcu->serdev, cmd, size); + if (ret < 0) + goto exit; + + serdev_device_wait_until_sent(mcu->serdev, IEI_WT61P803_PUZZLE_GENERAL_TIMEOUT); + ret = wait_for_completion_timeout(&mcu->reply->received, + IEI_WT61P803_PUZZLE_GENERAL_TIMEOUT); + if (ret == 0) { + dev_err(dev, "Command reply receive timeout\n"); + ret = -ETIMEDOUT; + goto exit; + } + + *reply_size = mcu->reply->size; + /* Copy the received data, as it will not be available after a new frame is received */ + memcpy(reply_data, mcu->reply->data, mcu->reply->size); + ret = 0; +exit: + mutex_unlock(&mcu->reply_lock); + return ret; +} +EXPORT_SYMBOL_GPL(iei_wt61p803_puzzle_write_command); + +static int iei_wt61p803_puzzle_buzzer(struct iei_wt61p803_puzzle *mcu, bool long_beep) +{ + unsigned char *resp_buf = mcu->response_buffer; + unsigned char buzzer_cmd[4] = {}; + size_t reply_size; + int ret; + + buzzer_cmd[0] = IEI_WT61P803_PUZZLE_CMD_HEADER_START; + buzzer_cmd[1] = IEI_WT61P803_PUZZLE_CMD_FUNCTION_SINGLE; + buzzer_cmd[2] = long_beep ? '3' : '2'; /* Buzzer 1.5 / 0.5 second beep */ + + mutex_lock(&mcu->lock); + ret = iei_wt61p803_puzzle_write_command(mcu, buzzer_cmd, sizeof(buzzer_cmd), + resp_buf, &reply_size); + if (ret) + goto exit; + + if (reply_size != 3) { + ret = -EIO; + goto exit; + } + + if (!(resp_buf[0] == IEI_WT61P803_PUZZLE_CMD_HEADER_START && + resp_buf[1] == IEI_WT61P803_PUZZLE_CMD_RESPONSE_OK && + resp_buf[2] == IEI_WT61P803_PUZZLE_CHECKSUM_RESPONSE_OK)) { + ret = -EPROTO; + goto exit; + } +exit: + mutex_unlock(&mcu->lock); + return ret; +} + +static int iei_wt61p803_puzzle_get_version(struct iei_wt61p803_puzzle *mcu) +{ + unsigned char version_cmd[3] = { + IEI_WT61P803_PUZZLE_CMD_HEADER_START_OTHER, + IEI_WT61P803_PUZZLE_CMD_OTHER_VERSION, + }; + unsigned char build_info_cmd[3] = { + IEI_WT61P803_PUZZLE_CMD_HEADER_START_OTHER, + IEI_WT61P803_PUZZLE_CMD_OTHER_BUILD, + }; + unsigned char bootloader_mode_cmd[3] = { + IEI_WT61P803_PUZZLE_CMD_HEADER_START_OTHER, + IEI_WT61P803_PUZZLE_CMD_OTHER_BOOTLOADER_MODE, + }; + unsigned char protocol_version_cmd[3] = { + IEI_WT61P803_PUZZLE_CMD_HEADER_START_OTHER, + IEI_WT61P803_PUZZLE_CMD_OTHER_PROTOCOL_VERSION, + }; + unsigned char *rb = mcu->response_buffer; + size_t reply_size; + int ret; + + mutex_lock(&mcu->lock); + + ret = iei_wt61p803_puzzle_write_command(mcu, version_cmd, sizeof(version_cmd), + rb, &reply_size); + if (ret) + goto err; + if (reply_size < 7) { + ret = -EIO; + goto err; + } + sprintf(mcu->version.version, "v%c.%.3s", rb[2], &rb[3]); + + ret = iei_wt61p803_puzzle_write_command(mcu, build_info_cmd, + sizeof(build_info_cmd), rb, + &reply_size); + if (ret) + goto err; + if (reply_size < 15) { + ret = -EIO; + goto err; + } + sprintf(mcu->version.build_info, "%c%c/%c%c/%.4s %c%c:%c%c", + rb[8], rb[9], rb[6], rb[7], &rb[2], rb[10], rb[11], + rb[12], rb[13]); + + ret = iei_wt61p803_puzzle_write_command(mcu, bootloader_mode_cmd, + sizeof(bootloader_mode_cmd), rb, + &reply_size); + if (ret) + goto err; + if (reply_size < 4) { + ret = -EIO; + goto err; + } + if (rb[2] == IEI_WT61P803_PUZZLE_CMD_OTHER_MODE_APPS) + mcu->version.bootloader_mode = false; + else if (rb[2] == IEI_WT61P803_PUZZLE_CMD_OTHER_MODE_BOOTLOADER) + mcu->version.bootloader_mode = true; + + ret = iei_wt61p803_puzzle_write_command(mcu, protocol_version_cmd, + sizeof(protocol_version_cmd), rb, + &reply_size); + if (ret) + goto err; + if (reply_size < 9) { + ret = -EIO; + goto err; + } + sprintf(mcu->version.protocol_version, "v%c.%c%c%c%c%c", + rb[7], rb[6], rb[5], rb[4], rb[3], rb[2]); +err: + mutex_unlock(&mcu->lock); + return ret; +} + +static int iei_wt61p803_puzzle_get_mcu_status(struct iei_wt61p803_puzzle *mcu) +{ + unsigned char mcu_status_cmd[5] = { + IEI_WT61P803_PUZZLE_CMD_HEADER_START, + IEI_WT61P803_PUZZLE_CMD_FUNCTION_OTHER, + IEI_WT61P803_PUZZLE_CMD_FUNCTION_OTHER_STATUS, + IEI_WT61P803_PUZZLE_CMD_FUNCTION_OTHER_STATUS, + }; + unsigned char *resp_buf = mcu->response_buffer; + size_t reply_size; + int ret; + + mutex_lock(&mcu->lock); + ret = iei_wt61p803_puzzle_write_command(mcu, mcu_status_cmd, sizeof(mcu_status_cmd), + resp_buf, &reply_size); + if (ret) + goto exit; + if (reply_size < 20) { + ret = -EIO; + goto exit; + } + + /* Response format: + * (IDX RESPONSE) + * 0 @ + * 1 O + * 2 S + * 3 S + * ... + * 5 AC Recovery Status Flag + * ... + * 10 Power Loss Recovery + * ... + * 19 Power Status (system power on method) + * 20 XOR checksum + */ + if (resp_buf[0] == IEI_WT61P803_PUZZLE_CMD_HEADER_START && + resp_buf[1] == IEI_WT61P803_PUZZLE_CMD_FUNCTION_OTHER && + resp_buf[2] == IEI_WT61P803_PUZZLE_CMD_FUNCTION_OTHER_STATUS && + resp_buf[3] == IEI_WT61P803_PUZZLE_CMD_FUNCTION_OTHER_STATUS) { + mcu->status.ac_recovery_status_flag = resp_buf[5]; + mcu->status.power_loss_recovery = resp_buf[10]; + mcu->status.power_status = resp_buf[19]; + } +exit: + mutex_unlock(&mcu->lock); + return ret; +} + +static int iei_wt61p803_puzzle_get_serial_number(struct iei_wt61p803_puzzle *mcu) +{ + unsigned char *resp_buf = mcu->response_buffer; + unsigned char serial_number_cmd[5] = { + IEI_WT61P803_PUZZLE_CMD_HEADER_EEPROM, + IEI_WT61P803_PUZZLE_CMD_EEPROM_READ, + 0x00, /* EEPROM read address */ + 0x24, /* Data length */ + }; + size_t reply_size; + int ret; + + mutex_lock(&mcu->lock); + ret = iei_wt61p803_puzzle_write_command(mcu, serial_number_cmd, + sizeof(serial_number_cmd), + resp_buf, &reply_size); + if (ret) + goto err; + + if (reply_size < IEI_WT61P803_PUZZLE_SN_LENGTH + 4) { + ret = -EIO; + goto err; + } + + sprintf(mcu->version.serial_number, "%.*s", + IEI_WT61P803_PUZZLE_SN_LENGTH, resp_buf + 4); +err: + mutex_unlock(&mcu->lock); + return ret; +} + +static int iei_wt61p803_puzzle_write_serial_number(struct iei_wt61p803_puzzle *mcu, + unsigned char serial_number[36]) +{ + unsigned char *resp_buf = mcu->response_buffer; + unsigned char serial_number_header[4] = { + IEI_WT61P803_PUZZLE_CMD_HEADER_EEPROM, + IEI_WT61P803_PUZZLE_CMD_EEPROM_WRITE, + 0x00, /* EEPROM write address */ + 0xC, /* Data length */ + }; + unsigned char serial_number_cmd[4 + 12 + 1]; /* header, serial number, XOR checksum */ + int ret, sn_counter; + size_t reply_size; + + /* The MCU can only handle 22 byte messages, send the S/N in 12 byte chunks */ + mutex_lock(&mcu->lock); + for (sn_counter = 0; sn_counter < 3; sn_counter++) { + serial_number_header[2] = 0x0 + 0xC * sn_counter; + + memcpy(serial_number_cmd, serial_number_header, sizeof(serial_number_header)); + memcpy(serial_number_cmd + sizeof(serial_number_header), + serial_number + 0xC * sn_counter, 0xC); + + ret = iei_wt61p803_puzzle_write_command(mcu, serial_number_cmd, + sizeof(serial_number_cmd), + resp_buf, &reply_size); + if (ret) + goto err; + if (reply_size != 3) { + ret = -EIO; + goto err; + } + if (!(resp_buf[0] == IEI_WT61P803_PUZZLE_CMD_HEADER_START && + resp_buf[1] == IEI_WT61P803_PUZZLE_CMD_RESPONSE_OK && + resp_buf[2] == IEI_WT61P803_PUZZLE_CHECKSUM_RESPONSE_OK)) { + ret = -EPROTO; + goto err; + } + } + + sprintf(mcu->version.serial_number, "%.*s", + IEI_WT61P803_PUZZLE_SN_LENGTH, serial_number); +err: + mutex_unlock(&mcu->lock); + return ret; +} + +static int iei_wt61p803_puzzle_get_mac_address(struct iei_wt61p803_puzzle *mcu, int index) +{ + unsigned char *resp_buf = mcu->response_buffer; + unsigned char mac_address_cmd[5] = { + IEI_WT61P803_PUZZLE_CMD_HEADER_EEPROM, + IEI_WT61P803_PUZZLE_CMD_EEPROM_READ, + 0x00, /* EEPROM read address */ + 0x11, /* Data length */ + }; + size_t reply_size; + int ret; + + mutex_lock(&mcu->lock); + mac_address_cmd[2] = 0x24 + 0x11 * index; + + ret = iei_wt61p803_puzzle_write_command(mcu, mac_address_cmd, + sizeof(mac_address_cmd), + resp_buf, &reply_size); + if (ret) + goto err; + + if (reply_size < 22) { + ret = -EIO; + goto err; + } + + sprintf(mcu->version.mac_address[index], "%.*s", + IEI_WT61P803_PUZZLE_MAC_LENGTH, resp_buf + 4); +err: + mutex_unlock(&mcu->lock); + return ret; +} + +static int +iei_wt61p803_puzzle_write_mac_address(struct iei_wt61p803_puzzle *mcu, + unsigned char mac_address[IEI_WT61P803_PUZZLE_MAC_LENGTH], + int mac_address_idx) +{ + unsigned char mac_address_cmd[4 + IEI_WT61P803_PUZZLE_MAC_LENGTH + 1]; + unsigned char *resp_buf = mcu->response_buffer; + unsigned char mac_address_header[4] = { + IEI_WT61P803_PUZZLE_CMD_HEADER_EEPROM, + IEI_WT61P803_PUZZLE_CMD_EEPROM_WRITE, + 0x00, /* EEPROM write address */ + 0x11, /* Data length */ + }; + size_t reply_size; + int ret; + + if (mac_address_idx < 0 || mac_address_idx >= IEI_WT61P803_PUZZLE_NB_MAC) + return -EINVAL; + + mac_address_header[2] = 0x24 + 0x11 * mac_address_idx; + + /* Concat mac_address_header, mac_address to mac_address_cmd */ + memcpy(mac_address_cmd, mac_address_header, sizeof(mac_address_header)); + memcpy(mac_address_cmd + sizeof(mac_address_header), mac_address, + IEI_WT61P803_PUZZLE_MAC_LENGTH); + + mutex_lock(&mcu->lock); + ret = iei_wt61p803_puzzle_write_command(mcu, mac_address_cmd, + sizeof(mac_address_cmd), + resp_buf, &reply_size); + if (ret) + goto err; + if (reply_size != 3) { + ret = -EIO; + goto err; + } + if (!(resp_buf[0] == IEI_WT61P803_PUZZLE_CMD_HEADER_START && + resp_buf[1] == IEI_WT61P803_PUZZLE_CMD_RESPONSE_OK && + resp_buf[2] == IEI_WT61P803_PUZZLE_CHECKSUM_RESPONSE_OK)) { + ret = -EPROTO; + goto err; + } + + sprintf(mcu->version.mac_address[mac_address_idx], "%.*s", + IEI_WT61P803_PUZZLE_MAC_LENGTH, mac_address); +err: + mutex_unlock(&mcu->lock); + return ret; +} + +static int iei_wt61p803_puzzle_write_power_loss_recovery(struct iei_wt61p803_puzzle *mcu, + int power_loss_recovery_action) +{ + unsigned char *resp_buf = mcu->response_buffer; + unsigned char power_loss_recovery_cmd[5] = {}; + size_t reply_size; + int ret; + + if (power_loss_recovery_action < 0 || power_loss_recovery_action > 4) + return -EINVAL; + + power_loss_recovery_cmd[0] = IEI_WT61P803_PUZZLE_CMD_HEADER_START; + power_loss_recovery_cmd[1] = IEI_WT61P803_PUZZLE_CMD_FUNCTION_OTHER; + power_loss_recovery_cmd[2] = IEI_WT61P803_PUZZLE_CMD_FUNCTION_OTHER_POWER_LOSS; + power_loss_recovery_cmd[3] = hex_asc[power_loss_recovery_action]; + + mutex_lock(&mcu->lock); + ret = iei_wt61p803_puzzle_write_command(mcu, power_loss_recovery_cmd, + sizeof(power_loss_recovery_cmd), + resp_buf, &reply_size); + if (ret) + goto exit; + mcu->status.power_loss_recovery = power_loss_recovery_action; +exit: + mutex_unlock(&mcu->lock); + return ret; +} + +#define to_puzzle_dev_attr(_attr) \ + container_of(_attr, struct iei_wt61p803_puzzle_device_attribute, dev_attr) + +static ssize_t show_output(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct iei_wt61p803_puzzle *mcu = dev_get_drvdata(dev); + struct iei_wt61p803_puzzle_device_attribute *pattr = to_puzzle_dev_attr(attr); + int ret; + + switch (pattr->type) { + case IEI_WT61P803_PUZZLE_VERSION: + return scnprintf(buf, PAGE_SIZE, "%s\n", mcu->version.version); + case IEI_WT61P803_PUZZLE_BUILD_INFO: + return scnprintf(buf, PAGE_SIZE, "%s\n", mcu->version.build_info); + case IEI_WT61P803_PUZZLE_BOOTLOADER_MODE: + return scnprintf(buf, PAGE_SIZE, "%d\n", mcu->version.bootloader_mode); + case IEI_WT61P803_PUZZLE_PROTOCOL_VERSION: + return scnprintf(buf, PAGE_SIZE, "%s\n", mcu->version.protocol_version); + case IEI_WT61P803_PUZZLE_SERIAL_NUMBER: + ret = iei_wt61p803_puzzle_get_serial_number(mcu); + if (!ret) + ret = scnprintf(buf, PAGE_SIZE, "%s\n", mcu->version.serial_number); + else + ret = 0; + return ret; + case IEI_WT61P803_PUZZLE_MAC_ADDRESS: + ret = iei_wt61p803_puzzle_get_mac_address(mcu, pattr->index); + if (!ret) + ret = scnprintf(buf, PAGE_SIZE, "%s\n", + mcu->version.mac_address[pattr->index]); + else + ret = 0; + return ret; + case IEI_WT61P803_PUZZLE_AC_RECOVERY_STATUS: + case IEI_WT61P803_PUZZLE_POWER_LOSS_RECOVERY: + case IEI_WT61P803_PUZZLE_POWER_STATUS: + ret = iei_wt61p803_puzzle_get_mcu_status(mcu); + if (ret) + return ret; + + mutex_lock(&mcu->lock); + switch (pattr->type) { + case IEI_WT61P803_PUZZLE_AC_RECOVERY_STATUS: + ret = scnprintf(buf, PAGE_SIZE, "%x\n", + mcu->status.ac_recovery_status_flag); + break; + case IEI_WT61P803_PUZZLE_POWER_LOSS_RECOVERY: + ret = scnprintf(buf, PAGE_SIZE, "%x\n", mcu->status.power_loss_recovery); + break; + case IEI_WT61P803_PUZZLE_POWER_STATUS: + ret = scnprintf(buf, PAGE_SIZE, "%x\n", mcu->status.power_status); + break; + default: + ret = 0; + break; + } + mutex_unlock(&mcu->lock); + return ret; + default: + return 0; + } + + return 0; +} + +static ssize_t store_output(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t len) +{ + unsigned char serial_number[IEI_WT61P803_PUZZLE_SN_LENGTH]; + unsigned char mac_address[IEI_WT61P803_PUZZLE_MAC_LENGTH]; + struct iei_wt61p803_puzzle *mcu = dev_get_drvdata(dev); + struct iei_wt61p803_puzzle_device_attribute *pattr = to_puzzle_dev_attr(attr); + int power_loss_recovery_action = 0; + int ret; + + switch (pattr->type) { + case IEI_WT61P803_PUZZLE_SERIAL_NUMBER: + if (len != (size_t)(IEI_WT61P803_PUZZLE_SN_LENGTH + 1)) + return -EINVAL; + memcpy(serial_number, buf, sizeof(serial_number)); + ret = iei_wt61p803_puzzle_write_serial_number(mcu, serial_number); + if (ret) + return ret; + return len; + case IEI_WT61P803_PUZZLE_MAC_ADDRESS: + if (len != (size_t)(IEI_WT61P803_PUZZLE_MAC_LENGTH + 1)) + return -EINVAL; + + memcpy(mac_address, buf, sizeof(mac_address)); + + if (strlen(attr->attr.name) != 13) + return -EIO; + + ret = iei_wt61p803_puzzle_write_mac_address(mcu, mac_address, pattr->index); + if (ret) + return ret; + return len; + case IEI_WT61P803_PUZZLE_POWER_LOSS_RECOVERY: + ret = kstrtoint(buf, 10, &power_loss_recovery_action); + if (ret) + return ret; + ret = iei_wt61p803_puzzle_write_power_loss_recovery(mcu, + power_loss_recovery_action); + if (ret) + return ret; + return len; + default: + return -EINVAL; + } + + return 0; +} + +#define IEI_WT61P803_PUZZLE_ATTR(_name, _mode, _show, _store, _type, _index) \ + struct iei_wt61p803_puzzle_device_attribute dev_attr_##_name = \ + { .dev_attr = __ATTR(_name, _mode, _show, _store), \ + .type = _type, \ + .index = _index } + +#define IEI_WT61P803_PUZZLE_ATTR_RO(_name, _type, _id) \ + IEI_WT61P803_PUZZLE_ATTR(_name, 0444, show_output, NULL, _type, _id) + +#define IEI_WT61P803_PUZZLE_ATTR_RW(_name, _type, _id) \ + IEI_WT61P803_PUZZLE_ATTR(_name, 0644, show_output, store_output, _type, _id) + +static IEI_WT61P803_PUZZLE_ATTR_RO(version, IEI_WT61P803_PUZZLE_VERSION, 0); +static IEI_WT61P803_PUZZLE_ATTR_RO(build_info, IEI_WT61P803_PUZZLE_BUILD_INFO, 0); +static IEI_WT61P803_PUZZLE_ATTR_RO(bootloader_mode, IEI_WT61P803_PUZZLE_BOOTLOADER_MODE, 0); +static IEI_WT61P803_PUZZLE_ATTR_RO(protocol_version, IEI_WT61P803_PUZZLE_PROTOCOL_VERSION, 0); +static IEI_WT61P803_PUZZLE_ATTR_RW(serial_number, IEI_WT61P803_PUZZLE_SERIAL_NUMBER, 0); +static IEI_WT61P803_PUZZLE_ATTR_RW(mac_address_0, IEI_WT61P803_PUZZLE_MAC_ADDRESS, 0); +static IEI_WT61P803_PUZZLE_ATTR_RW(mac_address_1, IEI_WT61P803_PUZZLE_MAC_ADDRESS, 1); +static IEI_WT61P803_PUZZLE_ATTR_RW(mac_address_2, IEI_WT61P803_PUZZLE_MAC_ADDRESS, 2); +static IEI_WT61P803_PUZZLE_ATTR_RW(mac_address_3, IEI_WT61P803_PUZZLE_MAC_ADDRESS, 3); +static IEI_WT61P803_PUZZLE_ATTR_RW(mac_address_4, IEI_WT61P803_PUZZLE_MAC_ADDRESS, 4); +static IEI_WT61P803_PUZZLE_ATTR_RW(mac_address_5, IEI_WT61P803_PUZZLE_MAC_ADDRESS, 5); +static IEI_WT61P803_PUZZLE_ATTR_RW(mac_address_6, IEI_WT61P803_PUZZLE_MAC_ADDRESS, 6); +static IEI_WT61P803_PUZZLE_ATTR_RW(mac_address_7, IEI_WT61P803_PUZZLE_MAC_ADDRESS, 7); +static IEI_WT61P803_PUZZLE_ATTR_RO(ac_recovery_status, IEI_WT61P803_PUZZLE_AC_RECOVERY_STATUS, 0); +static IEI_WT61P803_PUZZLE_ATTR_RW(power_loss_recovery, IEI_WT61P803_PUZZLE_POWER_LOSS_RECOVERY, 0); +static IEI_WT61P803_PUZZLE_ATTR_RO(power_status, IEI_WT61P803_PUZZLE_POWER_STATUS, 0); + +static struct attribute *iei_wt61p803_puzzle_attrs[] = { + &dev_attr_version.dev_attr.attr, + &dev_attr_build_info.dev_attr.attr, + &dev_attr_bootloader_mode.dev_attr.attr, + &dev_attr_protocol_version.dev_attr.attr, + &dev_attr_serial_number.dev_attr.attr, + &dev_attr_mac_address_0.dev_attr.attr, + &dev_attr_mac_address_1.dev_attr.attr, + &dev_attr_mac_address_2.dev_attr.attr, + &dev_attr_mac_address_3.dev_attr.attr, + &dev_attr_mac_address_4.dev_attr.attr, + &dev_attr_mac_address_5.dev_attr.attr, + &dev_attr_mac_address_6.dev_attr.attr, + &dev_attr_mac_address_7.dev_attr.attr, + &dev_attr_ac_recovery_status.dev_attr.attr, + &dev_attr_power_loss_recovery.dev_attr.attr, + &dev_attr_power_status.dev_attr.attr, + NULL +}; +ATTRIBUTE_GROUPS(iei_wt61p803_puzzle); + +static int iei_wt61p803_puzzle_sysfs_create(struct device *dev, + struct iei_wt61p803_puzzle *mcu) +{ + int ret; + + ret = sysfs_create_groups(&mcu->dev->kobj, iei_wt61p803_puzzle_groups); + if (ret) + mfd_remove_devices(mcu->dev); + + return ret; +} + +static int iei_wt61p803_puzzle_sysfs_remove(struct device *dev, + struct iei_wt61p803_puzzle *mcu) +{ + /* Remove sysfs groups */ + sysfs_remove_groups(&mcu->dev->kobj, iei_wt61p803_puzzle_groups); + mfd_remove_devices(mcu->dev); + + return 0; +} + +static int iei_wt61p803_puzzle_probe(struct serdev_device *serdev) +{ + struct device *dev = &serdev->dev; + struct iei_wt61p803_puzzle *mcu; + u32 baud; + int ret; + + /* Read the baud rate from 'current-speed', because the MCU supports different rates */ + if (device_property_read_u32(dev, "current-speed", &baud)) { + dev_err(dev, + "'current-speed' is not specified in device node\n"); + return -EINVAL; + } + dev_dbg(dev, "Driver baud rate: %d\n", baud); + + /* Allocate the memory */ + mcu = devm_kzalloc(dev, sizeof(*mcu), GFP_KERNEL); + if (!mcu) + return -ENOMEM; + + mcu->reply = devm_kzalloc(dev, sizeof(*mcu->reply), GFP_KERNEL); + if (!mcu->reply) + return -ENOMEM; + + /* Initialize device struct data */ + mcu->serdev = serdev; + mcu->dev = dev; + init_completion(&mcu->reply->received); + mutex_init(&mcu->reply_lock); + mutex_init(&mcu->lock); + + /* Setup UART interface */ + serdev_device_set_drvdata(serdev, mcu); + serdev_device_set_client_ops(serdev, &iei_wt61p803_puzzle_serdev_device_ops); + ret = devm_serdev_device_open(dev, serdev); + if (ret) + return ret; + serdev_device_set_baudrate(serdev, baud); + serdev_device_set_flow_control(serdev, false); + ret = serdev_device_set_parity(serdev, SERDEV_PARITY_NONE); + if (ret) { + dev_err(dev, "Failed to set parity\n"); + return ret; + } + + ret = iei_wt61p803_puzzle_get_version(mcu); + if (ret) + return ret; + + dev_dbg(dev, "MCU version: %s\n", mcu->version.version); + dev_dbg(dev, "MCU firmware build info: %s\n", mcu->version.build_info); + dev_dbg(dev, "MCU in bootloader mode: %s\n", + mcu->version.bootloader_mode ? "true" : "false"); + dev_dbg(dev, "MCU protocol version: %s\n", mcu->version.protocol_version); + + if (device_property_read_bool(dev, "enable-beep")) { + ret = iei_wt61p803_puzzle_buzzer(mcu, false); + if (ret) + return ret; + } + + ret = iei_wt61p803_puzzle_sysfs_create(dev, mcu); + if (ret) + return ret; + + return devm_of_platform_populate(dev); +} + +static void iei_wt61p803_puzzle_remove(struct serdev_device *serdev) +{ + struct device *dev = &serdev->dev; + struct iei_wt61p803_puzzle *mcu = dev_get_drvdata(dev); + + iei_wt61p803_puzzle_sysfs_remove(dev, mcu); +} + +static const struct of_device_id iei_wt61p803_puzzle_dt_ids[] = { + { .compatible = "iei,wt61p803-puzzle" }, + { } +}; + +MODULE_DEVICE_TABLE(of, iei_wt61p803_puzzle_dt_ids); + +static struct serdev_device_driver iei_wt61p803_puzzle_drv = { + .probe = iei_wt61p803_puzzle_probe, + .remove = iei_wt61p803_puzzle_remove, + .driver = { + .name = "iei-wt61p803-puzzle", + .of_match_table = iei_wt61p803_puzzle_dt_ids, + }, +}; + +module_serdev_device_driver(iei_wt61p803_puzzle_drv); + +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Luka Kovacic "); +MODULE_DESCRIPTION("IEI WT61P803 PUZZLE MCU Driver"); diff --git a/include/linux/mfd/iei-wt61p803-puzzle.h b/include/linux/mfd/iei-wt61p803-puzzle.h new file mode 100644 index 000000000000..7f2da5887dae --- /dev/null +++ b/include/linux/mfd/iei-wt61p803-puzzle.h @@ -0,0 +1,66 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* IEI WT61P803 PUZZLE MCU Driver + * System management microcontroller for fan control, temperature sensor reading, + * LED control and system identification on IEI Puzzle series ARM-based appliances. + * + * Copyright (C) 2020 Sartura Ltd. + * Author: Luka Kovacic + */ + +#ifndef _MFD_IEI_WT61P803_PUZZLE_H_ +#define _MFD_IEI_WT61P803_PUZZLE_H_ + +#define IEI_WT61P803_PUZZLE_BUF_SIZE 512 + +/* Command magic numbers */ +#define IEI_WT61P803_PUZZLE_CMD_HEADER_START 0x40 /* @ */ +#define IEI_WT61P803_PUZZLE_CMD_HEADER_START_OTHER 0x25 /* % */ +#define IEI_WT61P803_PUZZLE_CMD_HEADER_EEPROM 0xF7 + +#define IEI_WT61P803_PUZZLE_CMD_RESPONSE_OK 0x30 /* 0 */ +#define IEI_WT61P803_PUZZLE_CHECKSUM_RESPONSE_OK 0x70 + +#define IEI_WT61P803_PUZZLE_CMD_EEPROM_READ 0xA1 +#define IEI_WT61P803_PUZZLE_CMD_EEPROM_WRITE 0xA0 + +#define IEI_WT61P803_PUZZLE_CMD_OTHER_VERSION 0x56 /* V */ +#define IEI_WT61P803_PUZZLE_CMD_OTHER_BUILD 0x42 /* B */ +#define IEI_WT61P803_PUZZLE_CMD_OTHER_BOOTLOADER_MODE 0x4D /* M */ +#define IEI_WT61P803_PUZZLE_CMD_OTHER_MODE_BOOTLOADER 0x30 +#define IEI_WT61P803_PUZZLE_CMD_OTHER_MODE_APPS 0x31 +#define IEI_WT61P803_PUZZLE_CMD_OTHER_PROTOCOL_VERSION 0x50 /* P */ + +#define IEI_WT61P803_PUZZLE_CMD_FUNCTION_SINGLE 0x43 /* C */ +#define IEI_WT61P803_PUZZLE_CMD_FUNCTION_OTHER 0x4F /* O */ +#define IEI_WT61P803_PUZZLE_CMD_FUNCTION_OTHER_STATUS 0x53 /* S */ +#define IEI_WT61P803_PUZZLE_CMD_FUNCTION_OTHER_POWER_LOSS 0x41 /* A */ + +#define IEI_WT61P803_PUZZLE_CMD_LED 0x52 /* R */ +#define IEI_WT61P803_PUZZLE_CMD_LED_POWER 0x31 /* 1 */ + +#define IEI_WT61P803_PUZZLE_CMD_TEMP 0x54 /* T */ +#define IEI_WT61P803_PUZZLE_CMD_TEMP_ALL 0x41 /* A */ + +#define IEI_WT61P803_PUZZLE_CMD_FAN 0x46 /* F */ +#define IEI_WT61P803_PUZZLE_CMD_FAN_PWM_READ 0x5A /* Z */ +#define IEI_WT61P803_PUZZLE_CMD_FAN_PWM_WRITE 0x57 /* W */ +#define IEI_WT61P803_PUZZLE_CMD_FAN_PWM_BASE 0x30 +#define IEI_WT61P803_PUZZLE_CMD_FAN_RPM_BASE 0x41 /* A */ + +#define IEI_WT61P803_PUZZLE_CMD_FAN_PWM(x) (IEI_WT61P803_PUZZLE_CMD_FAN_PWM_BASE + (x)) /* 0 - 1 */ +#define IEI_WT61P803_PUZZLE_CMD_FAN_RPM(x) (IEI_WT61P803_PUZZLE_CMD_FAN_RPM_BASE + (x)) /* 0 - 5 */ + +struct iei_wt61p803_puzzle_mcu_version; +struct iei_wt61p803_puzzle_reply; +struct iei_wt61p803_puzzle; + +int iei_wt61p803_puzzle_write_command_watchdog(struct iei_wt61p803_puzzle *mcu, + unsigned char *cmd, size_t size, + unsigned char *reply_data, size_t *reply_size, + int retry_count); + +int iei_wt61p803_puzzle_write_command(struct iei_wt61p803_puzzle *mcu, + unsigned char *cmd, size_t size, + unsigned char *reply_data, size_t *reply_size); + +#endif /* _MFD_IEI_WT61P803_PUZZLE_H_ */ From patchwork Tue Aug 24 12:44:34 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luka Kovacic X-Patchwork-Id: 502585 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=-16.7 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, URIBL_BLOCKED, 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 0FFB1C43216 for ; Tue, 24 Aug 2021 12:46:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F12926127B for ; Tue, 24 Aug 2021 12:46:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237296AbhHXMrg (ORCPT ); Tue, 24 Aug 2021 08:47:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53226 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237135AbhHXMrc (ORCPT ); Tue, 24 Aug 2021 08:47:32 -0400 Received: from mail-wm1-x32b.google.com (mail-wm1-x32b.google.com [IPv6:2a00:1450:4864:20::32b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1708EC061757 for ; Tue, 24 Aug 2021 05:46:48 -0700 (PDT) Received: by mail-wm1-x32b.google.com with SMTP id 79-20020a1c0452000000b002e6cf79e572so1807292wme.1 for ; Tue, 24 Aug 2021 05:46:48 -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=QX4KXvjdPx5HHDVgMZ3AkXURWvFxwWFSR0xjaE5bC9w=; b=Hm1BTToVgxaPDmBKgYdC6cDNfvNAXD+/EP+XJ8yrQAH2rdxKvnLLcm7JlEOkLDY3rZ FIGkNXNJfcVQ+9AuYu4kmORj5L/f+utvO0H71EXEwWOp7au+XymH4YE6EfuR3rFhn8/W cLmath0dfp64GANJWiifAunoY9CSLV4SAGvQzccEld4wuUfpieetazOfqnA8uOTSpv/A v8qCX1deEefEuWm2IWM4e9gq0ZRW82X1ZrlZDGbDuEqktiU5UC99A3rrpwyzsPr7AaPd Q8dMfuQIBbME2UY1EVVpE/cLLKS36t8yllXssiO6xFSvp96llt93NDoUsfJxUNnM+d/s 8I+Q== 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=QX4KXvjdPx5HHDVgMZ3AkXURWvFxwWFSR0xjaE5bC9w=; b=uYFvzTDjzwPT5bm2Br6yXvWrOEIFsbWaOIpg6Sz2JA53fEYaut+agR8dkaq2uYeq4Q 0bYqXBUgbbdvyOnVED8qQLVU/GqaXUY+ROxz/I1Dg+XiOsXhe3qgqqgKngNjycLT2nnu rLI0WVTNcgE7LmtGQMeC4XmcAA1eRcy1IocJB0y+SCHMJc4WzVHLZhjsns9VnNpX51z6 TPoX1h0ivgYEW7bOqNS3xUAqmm0jDGbci1FPm3pwLXH5wm1mpZTVjOiJ0Gsjmm+lUxyn ahlnFOOLyN0OdIiKey6UrSTAA04w9k9MyaRCY9cCEUiCKDj18krGpfQqxTP7yW9SqVbZ 47gw== X-Gm-Message-State: AOAM532wt4h9ETGY5XW6bu5LD5NJpAgfMhGgBQvZKBngyGrINNye1d4p pVH8A+b4W+QBZXr+uKwGQoOoEQ== X-Google-Smtp-Source: ABdhPJzF9kIp+T9nEJ1Jhtx/69m8h1IXSz2c64hJkzJCm49nY2d6EOxwGrM9pdhLuCfWFUTgPF6Taw== X-Received: by 2002:a1c:5401:: with SMTP id i1mr3849768wmb.156.1629809206600; Tue, 24 Aug 2021 05:46:46 -0700 (PDT) Received: from localhost.localdomain ([2a00:ee2:4b0d:3001:fe74:75c8:e909:251b]) by smtp.gmail.com with ESMTPSA id i14sm2255454wmq.40.2021.08.24.05.46.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Aug 2021 05:46:46 -0700 (PDT) From: Luka Kovacic To: linux-doc@vger.kernel.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, geert+renesas@glider.be, Max.Merchel@tq-group.com, linux@rempel-privat.de, daniel@0x0f.com, shawnguo@kernel.org, sam@ravnborg.org, arnd@arndb.de, krzysztof.kozlowski@canonical.com, pavo.banicevic@sartura.hr, corbet@lwn.net, lee.jones@linaro.org, pavel@ucw.cz, robh+dt@kernel.org, linux@roeck-us.net, jdelvare@suse.com, goran.medic@sartura.hr, luka.perkov@sartura.hr, robert.marko@sartura.hr Cc: Luka Kovacic Subject: [PATCH v9 3/7] drivers: hwmon: Add the IEI WT61P803 PUZZLE HWMON driver Date: Tue, 24 Aug 2021 14:44:34 +0200 Message-Id: <20210824124438.14519-4-luka.kovacic@sartura.hr> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210824124438.14519-1-luka.kovacic@sartura.hr> References: <20210824124438.14519-1-luka.kovacic@sartura.hr> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org Add the IEI WT61P803 PUZZLE HWMON driver, that handles the fan speed control via PWM, reading fan speed and reading on-board temperature sensors. The driver registers a HWMON device and a simple thermal cooling device to enable in-kernel fan management. This driver depends on the IEI WT61P803 PUZZLE MFD driver. Signed-off-by: Luka Kovacic Signed-off-by: Pavo Banicevic Acked-by: Guenter Roeck Cc: Luka Perkov Cc: Robert Marko --- drivers/hwmon/Kconfig | 8 + drivers/hwmon/Makefile | 1 + drivers/hwmon/iei-wt61p803-puzzle-hwmon.c | 413 ++++++++++++++++++++++ 3 files changed, 422 insertions(+) create mode 100644 drivers/hwmon/iei-wt61p803-puzzle-hwmon.c diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index e3675377bc5d..53fdc8c2ae37 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -722,6 +722,14 @@ config SENSORS_IBMPOWERNV This driver can also be built as a module. If so, the module will be called ibmpowernv. +config SENSORS_IEI_WT61P803_PUZZLE_HWMON + tristate "IEI WT61P803 PUZZLE MFD HWMON Driver" + depends on MFD_IEI_WT61P803_PUZZLE + help + The IEI WT61P803 PUZZLE MFD HWMON Driver handles reading fan speed + and writing fan PWM values. It also supports reading on-board + temperature sensors. + config SENSORS_IIO_HWMON tristate "Hwmon driver that uses channels specified via iio maps" depends on IIO diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index d712c61c1f5e..b31f8d7e7c96 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -84,6 +84,7 @@ obj-$(CONFIG_SENSORS_HIH6130) += hih6130.o obj-$(CONFIG_SENSORS_ULTRA45) += ultra45_env.o obj-$(CONFIG_SENSORS_I5500) += i5500_temp.o obj-$(CONFIG_SENSORS_I5K_AMB) += i5k_amb.o +obj-$(CONFIG_SENSORS_IEI_WT61P803_PUZZLE_HWMON) += iei-wt61p803-puzzle-hwmon.o obj-$(CONFIG_SENSORS_IBMAEM) += ibmaem.o obj-$(CONFIG_SENSORS_IBMPEX) += ibmpex.o obj-$(CONFIG_SENSORS_IBMPOWERNV)+= ibmpowernv.o diff --git a/drivers/hwmon/iei-wt61p803-puzzle-hwmon.c b/drivers/hwmon/iei-wt61p803-puzzle-hwmon.c new file mode 100644 index 000000000000..3a895ca08474 --- /dev/null +++ b/drivers/hwmon/iei-wt61p803-puzzle-hwmon.c @@ -0,0 +1,413 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* IEI WT61P803 PUZZLE MCU HWMON Driver + * + * Copyright (C) 2020 Sartura Ltd. + * Author: Luka Kovacic + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define IEI_WT61P803_PUZZLE_HWMON_MAX_PWM 2 +#define IEI_WT61P803_PUZZLE_HWMON_MAX_PWM_VAL 255 + +/** + * struct iei_wt61p803_puzzle_thermal_cooling_device - Thermal cooling device instance + * @mcu_hwmon: Parent driver struct pointer + * @tcdev: Thermal cooling device pointer + * @name: Thermal cooling device name + * @pwm_channel: Controlled PWM channel (0 or 1) + * @cooling_levels: Thermal cooling device cooling levels (DT) + */ +struct iei_wt61p803_puzzle_thermal_cooling_device { + struct iei_wt61p803_puzzle_hwmon *mcu_hwmon; + struct thermal_cooling_device *tcdev; + char name[THERMAL_NAME_LENGTH]; + int pwm_channel; + u8 *cooling_levels; +}; + +/** + * struct iei_wt61p803_puzzle_hwmon - MCU HWMON Driver + * @mcu: MCU struct pointer + * @response_buffer Global MCU response buffer + * @thermal_cooling_dev_present: Per-channel thermal cooling device control indicator + * @cdev: Per-channel thermal cooling device private structure + */ +struct iei_wt61p803_puzzle_hwmon { + struct iei_wt61p803_puzzle *mcu; + unsigned char response_buffer[IEI_WT61P803_PUZZLE_BUF_SIZE]; + bool thermal_cooling_dev_present[IEI_WT61P803_PUZZLE_HWMON_MAX_PWM]; + struct iei_wt61p803_puzzle_thermal_cooling_device + *cdev[IEI_WT61P803_PUZZLE_HWMON_MAX_PWM]; + struct mutex lock; /* mutex to protect response_buffer array */ +}; + +#define raw_temp_to_milidegree_celsius(x) (((x) - 0x80) * 1000) +static int iei_wt61p803_puzzle_read_temp_sensor(struct iei_wt61p803_puzzle_hwmon *mcu_hwmon, + int channel, long *value) +{ + unsigned char *resp_buf = mcu_hwmon->response_buffer; + unsigned char temp_sensor_ntc_cmd[4] = { + IEI_WT61P803_PUZZLE_CMD_HEADER_START, + IEI_WT61P803_PUZZLE_CMD_TEMP, + IEI_WT61P803_PUZZLE_CMD_TEMP_ALL, + }; + size_t reply_size; + int ret; + + mutex_lock(&mcu_hwmon->lock); + ret = iei_wt61p803_puzzle_write_command(mcu_hwmon->mcu, temp_sensor_ntc_cmd, + sizeof(temp_sensor_ntc_cmd), resp_buf, + &reply_size); + if (ret) + goto exit; + + if (reply_size != 7) { + ret = -EIO; + goto exit; + } + + /* Check the number of NTC values */ + if (resp_buf[3] != '2') { + ret = -EIO; + goto exit; + } + + *value = raw_temp_to_milidegree_celsius(resp_buf[4 + channel]); +exit: + mutex_unlock(&mcu_hwmon->lock); + return ret; +} + +#define raw_fan_val_to_rpm(x, y) ((((x) << 8 | (y)) / 2) * 60) +static int iei_wt61p803_puzzle_read_fan_speed(struct iei_wt61p803_puzzle_hwmon *mcu_hwmon, + int channel, long *value) +{ + unsigned char *resp_buf = mcu_hwmon->response_buffer; + unsigned char fan_speed_cmd[4] = {}; + size_t reply_size; + int ret; + + fan_speed_cmd[0] = IEI_WT61P803_PUZZLE_CMD_HEADER_START; + fan_speed_cmd[1] = IEI_WT61P803_PUZZLE_CMD_FAN; + fan_speed_cmd[2] = IEI_WT61P803_PUZZLE_CMD_FAN_RPM(channel); + + mutex_lock(&mcu_hwmon->lock); + ret = iei_wt61p803_puzzle_write_command(mcu_hwmon->mcu, fan_speed_cmd, + sizeof(fan_speed_cmd), resp_buf, + &reply_size); + if (ret) + goto exit; + + if (reply_size != 7) { + ret = -EIO; + goto exit; + } + + *value = raw_fan_val_to_rpm(resp_buf[3], resp_buf[4]); +exit: + mutex_unlock(&mcu_hwmon->lock); + return ret; +} + +static int iei_wt61p803_puzzle_write_pwm_channel(struct iei_wt61p803_puzzle_hwmon *mcu_hwmon, + int channel, long pwm_set_val) +{ + unsigned char *resp_buf = mcu_hwmon->response_buffer; + unsigned char pwm_set_cmd[6] = {}; + size_t reply_size; + int ret; + + pwm_set_cmd[0] = IEI_WT61P803_PUZZLE_CMD_HEADER_START; + pwm_set_cmd[1] = IEI_WT61P803_PUZZLE_CMD_FAN; + pwm_set_cmd[2] = IEI_WT61P803_PUZZLE_CMD_FAN_PWM_WRITE; + pwm_set_cmd[3] = IEI_WT61P803_PUZZLE_CMD_FAN_PWM(channel); + pwm_set_cmd[4] = pwm_set_val; + + mutex_lock(&mcu_hwmon->lock); + ret = iei_wt61p803_puzzle_write_command(mcu_hwmon->mcu, pwm_set_cmd, + sizeof(pwm_set_cmd), resp_buf, + &reply_size); + if (ret) + goto exit; + + if (reply_size != 3) { + ret = -EIO; + goto exit; + } + + if (!(resp_buf[0] == IEI_WT61P803_PUZZLE_CMD_HEADER_START && + resp_buf[1] == IEI_WT61P803_PUZZLE_CMD_RESPONSE_OK && + resp_buf[2] == IEI_WT61P803_PUZZLE_CHECKSUM_RESPONSE_OK)) { + ret = -EIO; + goto exit; + } +exit: + mutex_unlock(&mcu_hwmon->lock); + return ret; +} + +static int iei_wt61p803_puzzle_read_pwm_channel(struct iei_wt61p803_puzzle_hwmon *mcu_hwmon, + int channel, long *value) +{ + unsigned char *resp_buf = mcu_hwmon->response_buffer; + unsigned char pwm_get_cmd[5] = {}; + size_t reply_size; + int ret; + + pwm_get_cmd[0] = IEI_WT61P803_PUZZLE_CMD_HEADER_START; + pwm_get_cmd[1] = IEI_WT61P803_PUZZLE_CMD_FAN; + pwm_get_cmd[2] = IEI_WT61P803_PUZZLE_CMD_FAN_PWM_READ; + pwm_get_cmd[3] = IEI_WT61P803_PUZZLE_CMD_FAN_PWM(channel); + + ret = iei_wt61p803_puzzle_write_command(mcu_hwmon->mcu, pwm_get_cmd, + sizeof(pwm_get_cmd), resp_buf, + &reply_size); + if (ret) + return ret; + + if (reply_size != 5) + return -EIO; + + if (resp_buf[2] != IEI_WT61P803_PUZZLE_CMD_FAN_PWM_READ) + return -EIO; + + *value = resp_buf[3]; + + return 0; +} + +static int iei_wt61p803_puzzle_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct iei_wt61p803_puzzle_hwmon *mcu_hwmon = dev_get_drvdata(dev->parent); + + switch (type) { + case hwmon_pwm: + return iei_wt61p803_puzzle_read_pwm_channel(mcu_hwmon, channel, val); + case hwmon_fan: + return iei_wt61p803_puzzle_read_fan_speed(mcu_hwmon, channel, val); + case hwmon_temp: + return iei_wt61p803_puzzle_read_temp_sensor(mcu_hwmon, channel, val); + default: + return -EINVAL; + } +} + +static int iei_wt61p803_puzzle_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) +{ + struct iei_wt61p803_puzzle_hwmon *mcu_hwmon = dev_get_drvdata(dev->parent); + + return iei_wt61p803_puzzle_write_pwm_channel(mcu_hwmon, channel, val); +} + +static umode_t iei_wt61p803_puzzle_is_visible(const void *data, enum hwmon_sensor_types type, + u32 attr, int channel) +{ + const struct iei_wt61p803_puzzle_hwmon *mcu_hwmon = data; + + switch (type) { + case hwmon_pwm: + if (mcu_hwmon->thermal_cooling_dev_present[channel]) + return 0444; + if (attr == hwmon_pwm_input) + return 0644; + break; + case hwmon_fan: + if (attr == hwmon_fan_input) + return 0444; + break; + case hwmon_temp: + if (attr == hwmon_temp_input) + return 0444; + break; + default: + return 0; + } + + return 0; +} + +static const struct hwmon_ops iei_wt61p803_puzzle_hwmon_ops = { + .is_visible = iei_wt61p803_puzzle_is_visible, + .read = iei_wt61p803_puzzle_read, + .write = iei_wt61p803_puzzle_write, +}; + +static const struct hwmon_channel_info *iei_wt61p803_puzzle_info[] = { + HWMON_CHANNEL_INFO(pwm, + HWMON_PWM_INPUT, + HWMON_PWM_INPUT), + HWMON_CHANNEL_INFO(fan, + HWMON_F_INPUT, + HWMON_F_INPUT, + HWMON_F_INPUT, + HWMON_F_INPUT, + HWMON_F_INPUT), + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT, + HWMON_T_INPUT), + NULL +}; + +static const struct hwmon_chip_info iei_wt61p803_puzzle_chip_info = { + .ops = &iei_wt61p803_puzzle_hwmon_ops, + .info = iei_wt61p803_puzzle_info, +}; + +static int iei_wt61p803_puzzle_get_max_state(struct thermal_cooling_device *tcdev, + unsigned long *state) +{ + *state = IEI_WT61P803_PUZZLE_HWMON_MAX_PWM_VAL; + + return 0; +} + +static int iei_wt61p803_puzzle_get_cur_state(struct thermal_cooling_device *tcdev, + unsigned long *state) +{ + struct iei_wt61p803_puzzle_thermal_cooling_device *cdev = tcdev->devdata; + struct iei_wt61p803_puzzle_hwmon *mcu_hwmon = cdev->mcu_hwmon; + long value; + int ret; + + ret = iei_wt61p803_puzzle_read_pwm_channel(mcu_hwmon, cdev->pwm_channel, &value); + if (ret) + return ret; + *state = value; + return 0; +} + +static int iei_wt61p803_puzzle_set_cur_state(struct thermal_cooling_device *tcdev, + unsigned long state) +{ + struct iei_wt61p803_puzzle_thermal_cooling_device *cdev = tcdev->devdata; + struct iei_wt61p803_puzzle_hwmon *mcu_hwmon = cdev->mcu_hwmon; + + return iei_wt61p803_puzzle_write_pwm_channel(mcu_hwmon, cdev->pwm_channel, state); +} + +static const struct thermal_cooling_device_ops iei_wt61p803_puzzle_cooling_ops = { + .get_max_state = iei_wt61p803_puzzle_get_max_state, + .get_cur_state = iei_wt61p803_puzzle_get_cur_state, + .set_cur_state = iei_wt61p803_puzzle_set_cur_state, +}; + +static int +iei_wt61p803_puzzle_enable_thermal_cooling_dev(struct device *dev, + struct fwnode_handle *child, + struct iei_wt61p803_puzzle_hwmon *mcu_hwmon) +{ + struct iei_wt61p803_puzzle_thermal_cooling_device *cdev; + u32 pwm_channel; + u8 num_levels; + int ret; + + ret = fwnode_property_read_u32(child, "reg", &pwm_channel); + if (ret) + return ret; + + mcu_hwmon->thermal_cooling_dev_present[pwm_channel] = true; + + num_levels = fwnode_property_count_u8(child, "cooling-levels"); + if (!num_levels) + return -EINVAL; + + cdev = devm_kzalloc(dev, sizeof(*cdev), GFP_KERNEL); + if (!cdev) + return -ENOMEM; + + cdev->cooling_levels = devm_kmalloc_array(dev, num_levels, sizeof(u8), GFP_KERNEL); + if (!cdev->cooling_levels) + return -ENOMEM; + + ret = fwnode_property_read_u8_array(child, "cooling-levels", + cdev->cooling_levels, + num_levels); + if (ret) { + dev_err(dev, "Couldn't read property 'cooling-levels'\n"); + return ret; + } + + snprintf(cdev->name, THERMAL_NAME_LENGTH, "wt61p803_puzzle_%d", pwm_channel); + cdev->tcdev = devm_thermal_of_cooling_device_register(dev, NULL, cdev->name, cdev, + &iei_wt61p803_puzzle_cooling_ops); + if (IS_ERR(cdev->tcdev)) + return PTR_ERR(cdev->tcdev); + + cdev->mcu_hwmon = mcu_hwmon; + cdev->pwm_channel = pwm_channel; + mcu_hwmon->cdev[pwm_channel] = cdev; + + return 0; +} + +static int iei_wt61p803_puzzle_hwmon_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct iei_wt61p803_puzzle *mcu = dev_get_drvdata(dev->parent); + struct iei_wt61p803_puzzle_hwmon *mcu_hwmon; + struct fwnode_handle *child; + struct device *hwmon_dev; + int ret; + + mcu_hwmon = devm_kzalloc(dev, sizeof(*mcu_hwmon), GFP_KERNEL); + if (!mcu_hwmon) + return -ENOMEM; + + mcu_hwmon->mcu = mcu; + platform_set_drvdata(pdev, mcu_hwmon); + mutex_init(&mcu_hwmon->lock); + + hwmon_dev = devm_hwmon_device_register_with_info(dev, "iei_wt61p803_puzzle", + mcu_hwmon, + &iei_wt61p803_puzzle_chip_info, + NULL); + if (IS_ERR(hwmon_dev)) + return PTR_ERR(hwmon_dev); + + /* Control fans via PWM lines via Linux Kernel */ + if (IS_ENABLED(CONFIG_THERMAL)) { + device_for_each_child_node(dev, child) { + ret = iei_wt61p803_puzzle_enable_thermal_cooling_dev(dev, child, mcu_hwmon); + if (ret) { + dev_err(dev, "Enabling the PWM fan failed\n"); + fwnode_handle_put(child); + return ret; + } + } + } + return 0; +} + +static const struct of_device_id iei_wt61p803_puzzle_hwmon_id_table[] = { + { .compatible = "iei,wt61p803-puzzle-hwmon" }, + {} +}; +MODULE_DEVICE_TABLE(of, iei_wt61p803_puzzle_hwmon_id_table); + +static struct platform_driver iei_wt61p803_puzzle_hwmon_driver = { + .driver = { + .name = "iei-wt61p803-puzzle-hwmon", + .of_match_table = iei_wt61p803_puzzle_hwmon_id_table, + }, + .probe = iei_wt61p803_puzzle_hwmon_probe, +}; + +module_platform_driver(iei_wt61p803_puzzle_hwmon_driver); + +MODULE_DESCRIPTION("IEI WT61P803 PUZZLE MCU HWMON Driver"); +MODULE_AUTHOR("Luka Kovacic "); +MODULE_LICENSE("GPL v2"); From patchwork Tue Aug 24 12:44:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luka Kovacic X-Patchwork-Id: 502023 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=-16.7 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, URIBL_BLOCKED, 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 4A1EBC19F35 for ; Tue, 24 Aug 2021 12:46:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 34DCD6140A for ; Tue, 24 Aug 2021 12:46:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237408AbhHXMri (ORCPT ); Tue, 24 Aug 2021 08:47:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53218 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237381AbhHXMrf (ORCPT ); Tue, 24 Aug 2021 08:47:35 -0400 Received: from mail-wm1-x329.google.com (mail-wm1-x329.google.com [IPv6:2a00:1450:4864:20::329]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7A41AC06129E for ; Tue, 24 Aug 2021 05:46:50 -0700 (PDT) Received: by mail-wm1-x329.google.com with SMTP id l7-20020a1c2507000000b002e6be5d86b3so2231401wml.3 for ; Tue, 24 Aug 2021 05:46:50 -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=y7XVmNtUHcirytMFNhQwNXF7iiYbnCyuCnpJ15AR8Ds=; b=RDNjDQuqBK/2+S+Swkj6n/EQUnaPiRP1ORqRLpI3kPPv9wM2DVWD4R6l7iYXezIrCX bBD3PXO4bnzY6I6tVY2ZdffxVBnKYjEZBDVKEf8uf9B2AmHefOEJBGLQVRVJDm/Ik6Fe lQxEtvOEwNQVNBwMcEqY7m8Q4O8yGBgrWsKwZbOE2GxMoALP2oJcyoBvM5S33qKmqChv Rj3paaSljv2en6HOk9WlpI9KN2ATVOiusYcEyDlv7wzXwIm/jajDifrPjLvHXszUPC40 EG5UaD/I4z+7QGZYQVpCT1PNNl0PDJcREJG6dbhiiW2fn8XBwjWGkslhkE8K4ZFH70ap bxAQ== 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=y7XVmNtUHcirytMFNhQwNXF7iiYbnCyuCnpJ15AR8Ds=; b=tjrt7WZh5ozLo1xsxx3p3aGefOUGhm5uVWG4ska/WRRruEM9aJ+Z1ahHOfBH0GvHS3 LOWpTW1i6xds7zP7wmrC4QKPCuaflcvVMYlyYHlMxHuKZEwkiPnVx2zT+/PUsL667Vjh Vex+fqJqxBHLoKZ0+tcIW9xU3vUY8CyQdINZZFTmv3+Pd3pOF1h9jRL1FDAuxYUy2Ky6 LF0saqSdhsxpviit6ppwltTLn6/pJiRM6xfCLR8iwfT/Ix7e/R/4YF6faaTQmu1O5384 VZwZncnqbn5jA3SOm9NI4cPcFShYLSaT0mK9223CvW1d4x2l+qAvRVGipV1xHebiPLta EHjA== X-Gm-Message-State: AOAM531AWkC6Ize/GEfpKd83DP4gT5HclltDjGHJ9cOjcp9ZLaiROO4U 2fZoGyNsu3vuABvstJPcBzTZGg== X-Google-Smtp-Source: ABdhPJxodLcGaQCQ2uB5/ygFlqr1RyHNBrgSt0h4WGFQ2HlsU82sRxfdI0E9xOYUQbFP8HsYHBEf8g== X-Received: by 2002:a7b:c5c7:: with SMTP id n7mr4075017wmk.5.1629809209029; Tue, 24 Aug 2021 05:46:49 -0700 (PDT) Received: from localhost.localdomain ([2a00:ee2:4b0d:3001:fe74:75c8:e909:251b]) by smtp.gmail.com with ESMTPSA id i14sm2255454wmq.40.2021.08.24.05.46.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Aug 2021 05:46:48 -0700 (PDT) From: Luka Kovacic To: linux-doc@vger.kernel.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, geert+renesas@glider.be, Max.Merchel@tq-group.com, linux@rempel-privat.de, daniel@0x0f.com, shawnguo@kernel.org, sam@ravnborg.org, arnd@arndb.de, krzysztof.kozlowski@canonical.com, pavo.banicevic@sartura.hr, corbet@lwn.net, lee.jones@linaro.org, pavel@ucw.cz, robh+dt@kernel.org, linux@roeck-us.net, jdelvare@suse.com, goran.medic@sartura.hr, luka.perkov@sartura.hr, robert.marko@sartura.hr Cc: Luka Kovacic Subject: [PATCH v9 4/7] drivers: leds: Add the IEI WT61P803 PUZZLE LED driver Date: Tue, 24 Aug 2021 14:44:35 +0200 Message-Id: <20210824124438.14519-5-luka.kovacic@sartura.hr> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210824124438.14519-1-luka.kovacic@sartura.hr> References: <20210824124438.14519-1-luka.kovacic@sartura.hr> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org Add support for the IEI WT61P803 PUZZLE LED driver. Currently only the front panel power LED is supported, since it is the only LED on this board wired through the MCU. The LED is wired directly to the on-board MCU controller and is toggled using an MCU command. Support for more LEDs is going to be added in case more boards implement this microcontroller, as LEDs use many different GPIOs. This driver depends on the IEI WT61P803 PUZZLE MFD driver. Signed-off-by: Luka Kovacic Signed-off-by: Pavo Banicevic Cc: Luka Perkov Cc: Robert Marko --- drivers/leds/Kconfig | 8 ++ drivers/leds/Makefile | 1 + drivers/leds/leds-iei-wt61p803-puzzle.c | 147 ++++++++++++++++++++++++ 3 files changed, 156 insertions(+) create mode 100644 drivers/leds/leds-iei-wt61p803-puzzle.c diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index bdf16180f5ff..702ffd98486b 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -333,6 +333,14 @@ config LEDS_IPAQ_MICRO Choose this option if you want to use the notification LED on Compaq/HP iPAQ h3100 and h3600. +config LEDS_IEI_WT61P803_PUZZLE + tristate "LED Support for the IEI WT61P803 PUZZLE MCU" + depends on LEDS_CLASS + depends on MFD_IEI_WT61P803_PUZZLE + help + This option enables support for LEDs controlled by the IEI WT61P803 + M801 MCU. + config LEDS_HP6XX tristate "LED Support for the HP Jornada 6xx" depends on LEDS_CLASS diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index 7e604d3028c8..2cae3d7e5b1b 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -35,6 +35,7 @@ obj-$(CONFIG_LEDS_HP6XX) += leds-hp6xx.o obj-$(CONFIG_LEDS_INTEL_SS4200) += leds-ss4200.o obj-$(CONFIG_LEDS_IP30) += leds-ip30.o obj-$(CONFIG_LEDS_IPAQ_MICRO) += leds-ipaq-micro.o +obj-$(CONFIG_LEDS_IEI_WT61P803_PUZZLE) += leds-iei-wt61p803-puzzle.o obj-$(CONFIG_LEDS_IS31FL319X) += leds-is31fl319x.o obj-$(CONFIG_LEDS_IS31FL32XX) += leds-is31fl32xx.o obj-$(CONFIG_LEDS_KTD2692) += leds-ktd2692.o diff --git a/drivers/leds/leds-iei-wt61p803-puzzle.c b/drivers/leds/leds-iei-wt61p803-puzzle.c new file mode 100644 index 000000000000..67d542d6ac72 --- /dev/null +++ b/drivers/leds/leds-iei-wt61p803-puzzle.c @@ -0,0 +1,147 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* IEI WT61P803 PUZZLE MCU LED Driver + * + * Copyright (C) 2020 Sartura Ltd. + * Author: Luka Kovacic + */ + +#include +#include +#include +#include +#include +#include +#include + +enum iei_wt61p803_puzzle_led_state { + IEI_LED_OFF = 0x30, + IEI_LED_ON = 0x31, + IEI_LED_BLINK_5HZ = 0x32, + IEI_LED_BLINK_1HZ = 0x33, +}; + +/** + * struct iei_wt61p803_puzzle_led - MCU LED Driver + * @cdev: LED classdev + * @mcu: MCU struct pointer + * @response_buffer Global MCU response buffer + * @lock: General mutex lock to protect simultaneous R/W access to led_power_state + * @led_power_state: State of the front panel power LED + */ +struct iei_wt61p803_puzzle_led { + struct led_classdev cdev; + struct iei_wt61p803_puzzle *mcu; + unsigned char response_buffer[IEI_WT61P803_PUZZLE_BUF_SIZE]; + struct mutex lock; /* mutex to protect led_power_state */ + int led_power_state; +}; + +static inline struct iei_wt61p803_puzzle_led *cdev_to_iei_wt61p803_puzzle_led + (struct led_classdev *led_cdev) +{ + return container_of(led_cdev, struct iei_wt61p803_puzzle_led, cdev); +} + +static int iei_wt61p803_puzzle_led_brightness_set_blocking(struct led_classdev *cdev, + enum led_brightness brightness) +{ + struct iei_wt61p803_puzzle_led *priv = cdev_to_iei_wt61p803_puzzle_led(cdev); + unsigned char *resp_buf = priv->response_buffer; + unsigned char led_power_cmd[5] = {}; + size_t reply_size; + int ret; + + led_power_cmd[0] = IEI_WT61P803_PUZZLE_CMD_HEADER_START; + led_power_cmd[1] = IEI_WT61P803_PUZZLE_CMD_LED; + led_power_cmd[2] = IEI_WT61P803_PUZZLE_CMD_LED_POWER; + led_power_cmd[3] = brightness == LED_OFF ? IEI_LED_OFF : IEI_LED_ON; + + ret = iei_wt61p803_puzzle_write_command(priv->mcu, led_power_cmd, + sizeof(led_power_cmd), + resp_buf, + &reply_size); + if (ret) + return ret; + + if (reply_size != 3) + return -EIO; + + if (!(resp_buf[0] == IEI_WT61P803_PUZZLE_CMD_HEADER_START && + resp_buf[1] == IEI_WT61P803_PUZZLE_CMD_RESPONSE_OK && + resp_buf[2] == IEI_WT61P803_PUZZLE_CHECKSUM_RESPONSE_OK)) + return -EIO; + + mutex_lock(&priv->lock); + priv->led_power_state = brightness; + mutex_unlock(&priv->lock); + + return 0; +} + +static enum led_brightness iei_wt61p803_puzzle_led_brightness_get(struct led_classdev *cdev) +{ + struct iei_wt61p803_puzzle_led *priv = cdev_to_iei_wt61p803_puzzle_led(cdev); + int led_state; + + mutex_lock(&priv->lock); + led_state = priv->led_power_state; + mutex_unlock(&priv->lock); + + return led_state; +} + +static int iei_wt61p803_puzzle_led_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct iei_wt61p803_puzzle *mcu = dev_get_drvdata(dev->parent); + struct iei_wt61p803_puzzle_led *priv; + struct led_init_data init_data = {}; + struct fwnode_handle *child; + int ret; + + if (device_get_child_node_count(dev) != 1) + return -EINVAL; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->mcu = mcu; + priv->led_power_state = 1; + mutex_init(&priv->lock); + dev_set_drvdata(dev, priv); + + child = device_get_next_child_node(dev, NULL); + init_data.fwnode = child; + + priv->cdev.brightness_set_blocking = iei_wt61p803_puzzle_led_brightness_set_blocking; + priv->cdev.brightness_get = iei_wt61p803_puzzle_led_brightness_get; + priv->cdev.max_brightness = 1; + + ret = devm_led_classdev_register_ext(dev, &priv->cdev, &init_data); + if (ret) + dev_err(dev, "Could not register LED\n"); + + fwnode_handle_put(child); + return ret; +} + +static const struct of_device_id iei_wt61p803_puzzle_led_of_match[] = { + { .compatible = "iei,wt61p803-puzzle-leds" }, + { } +}; +MODULE_DEVICE_TABLE(of, iei_wt61p803_puzzle_led_of_match); + +static struct platform_driver iei_wt61p803_puzzle_led_driver = { + .driver = { + .name = "iei-wt61p803-puzzle-led", + .of_match_table = iei_wt61p803_puzzle_led_of_match, + }, + .probe = iei_wt61p803_puzzle_led_probe, +}; +module_platform_driver(iei_wt61p803_puzzle_led_driver); + +MODULE_DESCRIPTION("IEI WT61P803 PUZZLE front panel LED driver"); +MODULE_AUTHOR("Luka Kovacic "); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:leds-iei-wt61p803-puzzle"); From patchwork Tue Aug 24 12:44:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luka Kovacic X-Patchwork-Id: 502584 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=-16.7 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, URIBL_BLOCKED, 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 8A35CC19F3E for ; Tue, 24 Aug 2021 12:46:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 73BFB61357 for ; Tue, 24 Aug 2021 12:46:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237414AbhHXMrl (ORCPT ); Tue, 24 Aug 2021 08:47:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53236 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237399AbhHXMrg (ORCPT ); Tue, 24 Aug 2021 08:47:36 -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 761F7C061796 for ; Tue, 24 Aug 2021 05:46:52 -0700 (PDT) Received: by mail-wm1-x334.google.com with SMTP id m2so1107895wmm.0 for ; Tue, 24 Aug 2021 05:46:52 -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=sV5bi/8/32uQJ63ILt7SV8uftT10eHMjtOEaunuG05M=; b=D4xeZ6Il7/TpovSdp6cBhIlgzF733gXgiHdK1AR2sEMG6GUdL8fZgop5meYE0aoupN FewCon2JtctS0mfG2zfLVWMAjUKldRRw3aVPERwzc/M/RWIOZfjEbpF4r1WnaAxpML7B qAejV7rQtR9g+hBZgy4G5Ml8K+GzxfFYQqTwnIuqYZZBejB1JMiSSQxJVrfri2g+LusL KfDtkYMdE5yrIaeu5johxOJM0dZdXeZ6H+yjIgoVZmWH464jJezCcifSpP+mnI60g5eQ wpdYycHnAT2lhf2BPz6VLZHI/hlDhUchgNXa85Ty7DdXu6T7E4IkEQAWxWgwsC1pYI7m 0EHg== 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=sV5bi/8/32uQJ63ILt7SV8uftT10eHMjtOEaunuG05M=; b=hSzrZl/bOBo641VRNmt3YShqdV1Hi5mscIUkcQvSy7OvEPvHE7qkt1/RePHXzq9HsB Lb6GEvbO/edlfPj1OT1k1vct4x9BsozJiuRwEpQ3IEOx8ROSmjWZEAIpXzE+/HVX9xgP txgs9jo61JcSv/q8cAewQ+l9PJoyBq06StfTkY9YZaMZw/FVMcU7xaVsVr1g3jgG1TjU buG2yEW1wYFfRnHGVwLNzU+DhUIMZPszb4US1BuZgNogLvv3Ofn2ZWIFoyEnM7zpqJWf c++JZYjA3tgimugwfVENuWOOM+UzITDUJMkOWCqojTXSIthOnqOWSDQwSG7ft3hSVawc z6rg== X-Gm-Message-State: AOAM532h0mxoHoiSuL3mrSCvbJ1enaIbmarzR6V9V3U/Od0iBAEGS7DY WVUbo/pRjOJ15ima5UXhgMNxSg== X-Google-Smtp-Source: ABdhPJyqY7PyhaU2K6nD0+z86vfEI4jeY/625pXpBJpDoe77q7569uA8pCW7P86FiH1hvhjVjZYnbQ== X-Received: by 2002:a05:600c:1c9c:: with SMTP id k28mr4041526wms.148.1629809211135; Tue, 24 Aug 2021 05:46:51 -0700 (PDT) Received: from localhost.localdomain ([2a00:ee2:4b0d:3001:fe74:75c8:e909:251b]) by smtp.gmail.com with ESMTPSA id i14sm2255454wmq.40.2021.08.24.05.46.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Aug 2021 05:46:50 -0700 (PDT) From: Luka Kovacic To: linux-doc@vger.kernel.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, geert+renesas@glider.be, Max.Merchel@tq-group.com, linux@rempel-privat.de, daniel@0x0f.com, shawnguo@kernel.org, sam@ravnborg.org, arnd@arndb.de, krzysztof.kozlowski@canonical.com, pavo.banicevic@sartura.hr, corbet@lwn.net, lee.jones@linaro.org, pavel@ucw.cz, robh+dt@kernel.org, linux@roeck-us.net, jdelvare@suse.com, goran.medic@sartura.hr, luka.perkov@sartura.hr, robert.marko@sartura.hr Cc: Luka Kovacic Subject: [PATCH v9 5/7] Documentation/ABI: Add iei-wt61p803-puzzle driver sysfs interface documentation Date: Tue, 24 Aug 2021 14:44:36 +0200 Message-Id: <20210824124438.14519-6-luka.kovacic@sartura.hr> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210824124438.14519-1-luka.kovacic@sartura.hr> References: <20210824124438.14519-1-luka.kovacic@sartura.hr> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org Add the iei-wt61p803-puzzle driver sysfs interface documentation to allow monitoring and control of the microcontroller from user space. Signed-off-by: Luka Kovacic Signed-off-by: Pavo Banicevic Cc: Luka Perkov Cc: Robert Marko --- .../testing/sysfs-driver-iei-wt61p803-puzzle | 61 +++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-driver-iei-wt61p803-puzzle diff --git a/Documentation/ABI/testing/sysfs-driver-iei-wt61p803-puzzle b/Documentation/ABI/testing/sysfs-driver-iei-wt61p803-puzzle new file mode 100644 index 000000000000..ab4415587f67 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-iei-wt61p803-puzzle @@ -0,0 +1,61 @@ +What: /sys/bus/serial/devices/.../mac_address_* +Date: September 2020 +Contact: Luka Kovacic +Description: (RW) Internal factory assigned MAC address values + +What: /sys/bus/serial/devices/.../serial_number +Date: September 2020 +Contact: Luka Kovacic +Description: (RW) Internal factory assigned serial number + +What: /sys/bus/serial/devices/.../version +Date: September 2020 +Contact: Luka Kovacic +Description: (RO) Internal MCU firmware version + +What: /sys/bus/serial/devices/.../protocol_version +Date: September 2020 +Contact: Luka Kovacic +Description: (RO) Internal MCU communication protocol version + +What: /sys/bus/serial/devices/.../power_loss_recovery +Date: September 2020 +Contact: Luka Kovacic +Description: (RW) Host platform power loss recovery settings + Value mapping: 0 - Always-On, 1 - Always-Off, 2 - Always-AC, 3 - Always-WA + +What: /sys/bus/serial/devices/.../bootloader_mode +Date: September 2020 +Contact: Luka Kovacic +Description: (RO) Internal MCU bootloader mode status + Value mapping: + 0 - normal mode + 1 - bootloader mode + +What: /sys/bus/serial/devices/.../power_status +Date: September 2020 +Contact: Luka Kovacic +Description: (RO) Power status indicates the host platform power on method. + Value mapping (bitwise list): + 0x80 - Null + 0x40 - Firmware flag + 0x20 - Power loss detection flag (powered off) + 0x10 - Power loss detection flag (AC mode) + 0x08 - Button power on + 0x04 - Wake-on-LAN power on + 0x02 - RTC alarm power on + 0x01 - AC recover power on + +What: /sys/bus/serial/devices/.../build_info +Date: September 2020 +Contact: Luka Kovacic +Description: (RO) Internal MCU firmware build date + Format: yyyy/mm/dd hh:mm + +What: /sys/bus/serial/devices/.../ac_recovery_status +Date: September 2020 +Contact: Luka Kovacic +Description: (RO) Host platform AC recovery status value + Value mapping: + 0 - board has not been recovered from power down + 1 - board has been recovered from power down From patchwork Tue Aug 24 12:44:37 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luka Kovacic X-Patchwork-Id: 502583 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=-16.7 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, URIBL_BLOCKED, 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 F251AC432BE for ; Tue, 24 Aug 2021 12:47:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D41546127B for ; Tue, 24 Aug 2021 12:47:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237453AbhHXMrn (ORCPT ); Tue, 24 Aug 2021 08:47:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53244 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237416AbhHXMri (ORCPT ); Tue, 24 Aug 2021 08:47:38 -0400 Received: from mail-wm1-x32e.google.com (mail-wm1-x32e.google.com [IPv6:2a00:1450:4864:20::32e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 708C3C0617AF for ; Tue, 24 Aug 2021 05:46:54 -0700 (PDT) Received: by mail-wm1-x32e.google.com with SMTP id d22-20020a1c1d16000000b002e7777970f0so1786103wmd.3 for ; Tue, 24 Aug 2021 05:46:54 -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=+jIDIEPGUtwtN5J2uvflNRJK63YXRHWuv3BgcHNxva8=; b=RgocWkgV6oNUTc6g8DAGPi8BVvHL+2Rn4ytJK6kWqkt6OVd0nd4Pw0xPYOLQiHlFMX OtV5mx1teKUYOBoqtXtMfWzziQgRt8LL/Y0lW06o7eJc3AW9oPwU3H54xnl1mpBPzStk xfmSriS7h/cWQ9pyJJJDd85BNltoeQgqHAFbKVsn8Dn5TxZ2rLhL8XpdptJFXq8S/NRO N943NGW1Kr3zL0osclrJj2vT7ZDV+iC4S7eOIJcUuBQkAzYInSjFJa55D8g8i38HbX3d lDcl2jM0g870QLuhMltjcwV/feVYhi5OS9ITVlZPE8utfhAgiewVnAbmbyaZHw+xhH7C F6kQ== 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=+jIDIEPGUtwtN5J2uvflNRJK63YXRHWuv3BgcHNxva8=; b=UfZ6PV1V9tAUGEvz4YWkFlzllJFEDgkJAeM43r/kFdDSWlkE+nA9YYKEisGfboCR+A ehuokSlFev00+n+w5FSBgyTuM5cQ2YDcldPwf/uqY1/EWiIgXj8+MON/ygFb+VRSkWWL a0MyC1F9gJDmXHIp9XQ4FfhepPxPenn7NuJgPFwBXfS9ekJPzfVJaWdvfCdlXpYg0t5p X2NAStxlYrOw+LFbZrv3cLNbBgNG1dds+oV0Fyn5YfX2Hoxt04j3/p3EaC/codl4dRlN K666C8fv392L8awgFq27fpKhKIr7vrjHpiph5TXwA70iBQUT1t7fmz2kHG6q2+rWT035 idrg== X-Gm-Message-State: AOAM530hrV93Lp/J3E6as14Q4MUBA0wzglXt4bO6kXNnyt3W9sE8aHMx iHpKh5N5w/dxnx4uKmxSmXy5tA== X-Google-Smtp-Source: ABdhPJzqcG7L8tY5Ok3wh6qGkQq3AZ/iXN4weZPo9JxWaa0OJLRGlGwMIiSpjsDShx710OJPmIM6kQ== X-Received: by 2002:a7b:cd83:: with SMTP id y3mr3973991wmj.126.1629809213048; Tue, 24 Aug 2021 05:46:53 -0700 (PDT) Received: from localhost.localdomain ([2a00:ee2:4b0d:3001:fe74:75c8:e909:251b]) by smtp.gmail.com with ESMTPSA id i14sm2255454wmq.40.2021.08.24.05.46.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Aug 2021 05:46:52 -0700 (PDT) From: Luka Kovacic To: linux-doc@vger.kernel.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, geert+renesas@glider.be, Max.Merchel@tq-group.com, linux@rempel-privat.de, daniel@0x0f.com, shawnguo@kernel.org, sam@ravnborg.org, arnd@arndb.de, krzysztof.kozlowski@canonical.com, pavo.banicevic@sartura.hr, corbet@lwn.net, lee.jones@linaro.org, pavel@ucw.cz, robh+dt@kernel.org, linux@roeck-us.net, jdelvare@suse.com, goran.medic@sartura.hr, luka.perkov@sartura.hr, robert.marko@sartura.hr Cc: Luka Kovacic Subject: [PATCH v9 6/7] Documentation/hwmon: Add iei-wt61p803-puzzle hwmon driver documentation Date: Tue, 24 Aug 2021 14:44:37 +0200 Message-Id: <20210824124438.14519-7-luka.kovacic@sartura.hr> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210824124438.14519-1-luka.kovacic@sartura.hr> References: <20210824124438.14519-1-luka.kovacic@sartura.hr> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org Add the iei-wt61p803-puzzle driver hwmon driver interface documentation. Signed-off-by: Luka Kovacic Signed-off-by: Pavo Banicevic Cc: Luka Perkov Cc: Robert Marko --- .../hwmon/iei-wt61p803-puzzle-hwmon.rst | 43 +++++++++++++++++++ Documentation/hwmon/index.rst | 1 + 2 files changed, 44 insertions(+) create mode 100644 Documentation/hwmon/iei-wt61p803-puzzle-hwmon.rst diff --git a/Documentation/hwmon/iei-wt61p803-puzzle-hwmon.rst b/Documentation/hwmon/iei-wt61p803-puzzle-hwmon.rst new file mode 100644 index 000000000000..bbbe97645965 --- /dev/null +++ b/Documentation/hwmon/iei-wt61p803-puzzle-hwmon.rst @@ -0,0 +1,43 @@ +.. SPDX-License-Identifier: GPL-2.0-only + +Kernel driver iei-wt61p803-puzzle-hwmon +======================================= + +Supported chips: + * IEI WT61P803 PUZZLE for IEI Puzzle M801 + + Prefix: 'iei-wt61p803-puzzle-hwmon' + +Author: Luka Kovacic + + +Description +----------- + +This driver adds fan and temperature sensor reading for some IEI Puzzle +series boards. + +Sysfs attributes +---------------- + +The following attributes are supported: + +- IEI WT61P803 PUZZLE for IEI Puzzle M801 + +/sys files in hwmon subsystem +----------------------------- + +================= == ===================================================== +fan[1-5]_input RO files for fan speed (in RPM) +pwm[1-2] RW files for fan[1-2] target duty cycle (0..255) +temp[1-2]_input RO files for temperature sensors, in millidegree Celsius +================= == ===================================================== + +/sys files in thermal subsystem +------------------------------- + +================= == ===================================================== +cur_state RW file for current cooling state of the cooling device + (0..max_state) +max_state RO file for maximum cooling state of the cooling device +================= == ===================================================== diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index bc01601ea81a..4a050a5bc1f8 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -73,6 +73,7 @@ Hardware Monitoring Kernel Drivers ibmaem ibm-cffps ibmpowernv + iei-wt61p803-puzzle-hwmon ina209 ina2xx ina3221 From patchwork Tue Aug 24 12:44:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luka Kovacic X-Patchwork-Id: 502022 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=-16.7 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, URIBL_BLOCKED, 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 72F15C43214 for ; Tue, 24 Aug 2021 12:47:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 56B32604AC for ; Tue, 24 Aug 2021 12:47:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237418AbhHXMrp (ORCPT ); Tue, 24 Aug 2021 08:47:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53204 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237396AbhHXMrk (ORCPT ); Tue, 24 Aug 2021 08:47:40 -0400 Received: from mail-wm1-x331.google.com (mail-wm1-x331.google.com [IPv6:2a00:1450:4864:20::331]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4AFF2C061764 for ; Tue, 24 Aug 2021 05:46:56 -0700 (PDT) Received: by mail-wm1-x331.google.com with SMTP id f9-20020a05600c1549b029025b0f5d8c6cso1788092wmg.4 for ; Tue, 24 Aug 2021 05:46:56 -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=ArWBFJ1RaF32EdQ/NueB7gKPzmXr+kwVIop3QVqUxRs=; b=Ufi48a29jDZjrvV+8B+VXP3rvPAkVno0vtQeqV5MVMAD9iLiuChkSGucyB9OxqFUSY 7iWrFm4fxnTGeJej32pPdS8vgAPIP6q/DWeYolU//tNcUnYHQUqdA0yvhORbEu+bB2gd vAI8PsyRaWW+/6Ypo6+oYLUCRdG8LqP7rKKcVPmDCUvm19A+EYkF8f3zZgAOmnEMaLP+ 2/GmP5tzVWoKmR7oCBQdXHDT8PVE3l5uHwYqmIXC7sKTW9ARSpW36k4jwf9jqV/c8RPd 9wAfj+xNGgCM68azJyIKZCCCYLSzqitYHvXOLQPgd6jVfmI7mBhSdhI4c2nXBlDHKPji Wikg== 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=ArWBFJ1RaF32EdQ/NueB7gKPzmXr+kwVIop3QVqUxRs=; b=IYNr6wGMWZHh8jGPOVURffBrgz1CqY5hVpPdAb00po+JxEvuSj9sRbkcYcOHTFCtsq dla9l9RDiZKGyEiXkuKkitrXyWap6kLCMEa0c8Yt4waRXgzuM4gNa9MIaTgJXu540CTe BLKAGEwhemRGv7eDqp9RlO4WvRuuKSp6NfgGRdP9+78MhwVbgftPN8ON4PJE+7wgmcUM D7BTbGAYEJBWsMJGHzewkSrnRwdurngPzuo9tdIa7AWTprBOX7z347jgjrrG/cke91Yj ORVqlnKI5ONkMsoZBmWN1yX5mLYs83QlfmsxnakFeKyr7YZVBofSRbAdGSrqUv37O8MV IVAg== X-Gm-Message-State: AOAM5308mX9TCnG9yoodbeFfDmrPKqqpd/8CObQ7gmo38OmCgFvAdAAF Hoer6hZ6VERaXDeWHbZMtdJTPg== X-Google-Smtp-Source: ABdhPJwyvpGgJIO/vl2H3Iizf0L2u/W6pSdFSRABXkB0sYKQ0falNVCpdQWB6d5rhfZT4tuftIl4oQ== X-Received: by 2002:a1c:40c:: with SMTP id 12mr3915546wme.158.1629809214976; Tue, 24 Aug 2021 05:46:54 -0700 (PDT) Received: from localhost.localdomain ([2a00:ee2:4b0d:3001:fe74:75c8:e909:251b]) by smtp.gmail.com with ESMTPSA id i14sm2255454wmq.40.2021.08.24.05.46.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Aug 2021 05:46:54 -0700 (PDT) From: Luka Kovacic To: linux-doc@vger.kernel.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, geert+renesas@glider.be, Max.Merchel@tq-group.com, linux@rempel-privat.de, daniel@0x0f.com, shawnguo@kernel.org, sam@ravnborg.org, arnd@arndb.de, krzysztof.kozlowski@canonical.com, pavo.banicevic@sartura.hr, corbet@lwn.net, lee.jones@linaro.org, pavel@ucw.cz, robh+dt@kernel.org, linux@roeck-us.net, jdelvare@suse.com, goran.medic@sartura.hr, luka.perkov@sartura.hr, robert.marko@sartura.hr Cc: Luka Kovacic Subject: [PATCH v9 7/7] MAINTAINERS: Add an entry for the IEI WT61P803 PUZZLE driver Date: Tue, 24 Aug 2021 14:44:38 +0200 Message-Id: <20210824124438.14519-8-luka.kovacic@sartura.hr> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210824124438.14519-1-luka.kovacic@sartura.hr> References: <20210824124438.14519-1-luka.kovacic@sartura.hr> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org Add an entry for the IEI WT61P803 PUZZLE driver (MFD, HWMON, LED drivers). Signed-off-by: Luka Kovacic Signed-off-by: Pavo Banicevic Cc: Luka Perkov Cc: Robert Marko --- MAINTAINERS | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index c6b8a720c0bc..131a95aefe3b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8971,6 +8971,22 @@ F: include/net/nl802154.h F: net/ieee802154/ F: net/mac802154/ +IEI WT61P803 M801 MFD DRIVER +M: Luka Kovacic +M: Luka Perkov +M: Goran Medic +L: linux-kernel@vger.kernel.org +S: Maintained +F: Documentation/ABI/stable/sysfs-driver-iei-wt61p803-puzzle +F: Documentation/devicetree/bindings/hwmon/iei,wt61p803-puzzle-hwmon.yaml +F: Documentation/devicetree/bindings/leds/iei,wt61p803-puzzle-leds.yaml +F: Documentation/devicetree/bindings/mfd/iei,wt61p803-puzzle.yaml +F: Documentation/hwmon/iei-wt61p803-puzzle-hwmon.rst +F: drivers/hwmon/iei-wt61p803-puzzle-hwmon.c +F: drivers/leds/leds-iei-wt61p803-puzzle.c +F: drivers/mfd/iei-wt61p803-puzzle.c +F: include/linux/mfd/iei-wt61p803-puzzle.h + IFE PROTOCOL M: Yotam Gigi M: Jamal Hadi Salim