From patchwork Wed Nov 9 09:09:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "larry.lai" X-Patchwork-Id: 17423 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:6687:0:0:0:0:0 with SMTP id l7csp233332wru; Wed, 9 Nov 2022 01:19:58 -0800 (PST) X-Google-Smtp-Source: AMsMyM7psIVMjII71NrOgDZ5QKO7CY8+gM5zGs6zlHQO5BFxWsdCd2IqKc9VqUaHInzJiMqpFG/p X-Received: by 2002:a05:6a00:1993:b0:56d:a820:6181 with SMTP id d19-20020a056a00199300b0056da8206181mr46695210pfl.83.1667985598166; Wed, 09 Nov 2022 01:19:58 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1667985598; cv=pass; d=google.com; s=arc-20160816; b=IlqqkKH6QwyYNYSfL0UewIBSZVzVUqT2BLaH9BPYCYtxX/KYgwJVQ0qqaPx1peFx1I JMqJdr7XPZs3L+9VJuI4YPzXqqNwYVHVe66F+0IjoOwu9ozHbuR8srtxPgvolKYVw7va He+jemUy0gkHelaeHnatHq3g2j159L2zrcLvauIR1CM3ZSp3LrJTxnMpiHYm3XUcX1C9 xMGq07G377Nw2HXT4Tu5RBEDZHXNzMGORhLX9ywAvd3aJLusGTDklUvPIxkd4RWrOGCU 4AWAtGb4kvVUVcV+sCfbk2SpNfgdXIO2jwrzdFLQwRHCkuUgS5jpQboGdy2DyWba3tOo 2SBg== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:references:in-reply-to:message-id :date:subject:cc:to:from; bh=OyWUPELGnW7IyyQ7ftfKtcP49RXjNjxzGEZd1EAd704=; b=tEzgbZ7oj6qGjzqEtHQJA2Fr4thdnGoaKWfjDmjxQCCf+sFXYiYeQePFyblsj367Pg CUFXOuo8GcwW8+lUWVwprli5IcD6x6KBt/0SW5Gp/gBOrwFxQ8rauToJa1a8X/hVngbE MahIqzK5bcKJY2fclGmiYsTuMhNxDsVz8uGfGSR3+qt+XmKssMzvXHIFkG6yrs+msfZp RnarBwdRSwxr0FMcPs4LsyrZxUXhbJ8bLLK1MQZE+s2Xm+boAwVjbySzp/8LA3aO6Vkf rf4RhLxszhnGSN+VFbrV0WJ7vh3Rx2gPYqf9cpiIM/m49YWs9b0mfRs1PTWUcbpcWz0E qfbw== ARC-Authentication-Results: i=2; mx.google.com; arc=pass (i=1 spf=pass spfdomain=yunjingtech.com dkim=pass dkdomain=yunjingtech.com dmarc=pass fromdomain=yunjingtech.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=yunjingtech.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id f9-20020a170902ce8900b0016dcf421fe9si19405651plg.486.2022.11.09.01.19.45; Wed, 09 Nov 2022 01:19:58 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; arc=pass (i=1 spf=pass spfdomain=yunjingtech.com dkim=pass dkdomain=yunjingtech.com dmarc=pass fromdomain=yunjingtech.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=yunjingtech.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230146AbiKIJNb (ORCPT + 99 others); Wed, 9 Nov 2022 04:13:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49710 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230140AbiKIJMr (ORCPT ); Wed, 9 Nov 2022 04:12:47 -0500 Received: from APC01-PSA-obe.outbound.protection.outlook.com (mail-psaapc01on2106.outbound.protection.outlook.com [40.107.255.106]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4347620F53; Wed, 9 Nov 2022 01:11:59 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=KqQsQ0rsU/ptjIKX9vt7fwoiIkHmdcwvw8hMbQki352MIzgEkCdOZEFaRmmlV4PlGji0M8VTFMYyyuZD7uueAYARFe+lZvE8Gjng8yium/HTzzrdvQbQv/Su5tbBelhVxrFaDPlxH7vQlMjbsZmXIFnGKyrhEkj47vN2HTyFaB/26dhS2KrlF+Pj585wP0eOhEJtaxU/jPjOYFmeVAC2QdvdINdboW8wIHUv7kkQjTl4ebJm1ld4Lpp7vbWivvZwsYHQgk7XYZpkiIZrbIhTpQ9YbVLxEI8514UaL1/rdr8WOMjSFIcgJAgFsbT/G4eUaf+kbn0cI/qazkSOuYs0VQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=OyWUPELGnW7IyyQ7ftfKtcP49RXjNjxzGEZd1EAd704=; b=CS4TJzx/81gyIQoaiJm/D3iJ4z/x1cH+HlKlPs99vNHxLygVkV6VTzYwG1P32gMCukkew6CvpwgN8Hqst9mnyvX06B9nUFPS1pOZzoJigxCmCqj/3I8wMt9Tjo3tEpZ48dy79toepa6S8tdZDsFZKcG+O6CTsimlVLwK6SV9JbE1wGobMLrRIQhQDgzx2BENHFcbCTXFR9oa9krlWS3i0vZvSneHtUY85jS5ImC++oznlxWRCatuxmsmvaq1PXi9edzo1cwp/fnVD2FnVbivNoXZIvKUGkl4ftMiaGL1cykYDDJeYsffKbATP7dupgzE+zX1lThtt7qwPYOfUiA9CQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=yunjingtech.com; dmarc=pass action=none header.from=yunjingtech.com; dkim=pass header.d=yunjingtech.com; arc=none Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=yunjingtech.com; Received: from SG2PR06MB3742.apcprd06.prod.outlook.com (2603:1096:4:d8::14) by SI2PR06MB3881.apcprd06.prod.outlook.com (2603:1096:4:fc::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5791.27; Wed, 9 Nov 2022 09:11:56 +0000 Received: from SG2PR06MB3742.apcprd06.prod.outlook.com ([fe80::9ac2:8b0a:9ad:24b5]) by SG2PR06MB3742.apcprd06.prod.outlook.com ([fe80::9ac2:8b0a:9ad:24b5%5]) with mapi id 15.20.5791.027; Wed, 9 Nov 2022 09:11:56 +0000 From: chengwei To: lee@kernel.org, andriy.shevchenko@linux.intel.com, linus.walleij@linaro.org, pavel@ucw.cz Cc: linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-leds@vger.kernel.org, GaryWang@aaeon.com.tw, musa.lin@yunjingtech.com, jack.chang@yunjingtech.com, noah.hung@yunjingtech.com, chengwei Subject: [PATCH V3 3/3] leds: Add support for UP board CPLD onboard LEDS Date: Wed, 9 Nov 2022 17:09:57 +0800 Message-Id: <20221109090957.13167-4-larry.lai@yunjingtech.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20221109090957.13167-1-larry.lai@yunjingtech.com> References: <20221109090957.13167-1-larry.lai@yunjingtech.com> X-ClientProxiedBy: TYAPR01CA0059.jpnprd01.prod.outlook.com (2603:1096:404:2b::23) To SG2PR06MB3742.apcprd06.prod.outlook.com (2603:1096:4:d8::14) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SG2PR06MB3742:EE_|SI2PR06MB3881:EE_ X-MS-Office365-Filtering-Correlation-Id: 437ced64-3051-41a1-9662-08dac232733a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:SG2PR06MB3742.apcprd06.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230022)(136003)(39830400003)(346002)(376002)(366004)(396003)(451199015)(4326008)(86362001)(26005)(41300700001)(107886003)(478600001)(38350700002)(2906002)(38100700002)(36756003)(6512007)(8936002)(2616005)(186003)(1076003)(8676002)(5660300002)(6486002)(66476007)(66556008)(316002)(66946007)(52116002)(6506007)(43062005);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 70tVKKIz4CqZQxt2CeTWq2zwmjrb7QnyoCvyl0AMjkBbXQ7ku5jq32wwrwbcbYpZq/aqsnj5uokRa2M9qfHdGsUQeYkWvW6I8v0VT1DHGG8+YMvQabE7tUqqRodAMrKjjbzXQjhakklvXE/Sl0GDpSjQ7mYaEovMkIlYoqJAHErFpOajduNTUWQ0Lt3KW46XEgD8ptE3C1dEBKl8sItuGPImeVNHsHUBkrctoc8eUs0Fz1SWMDtghGQ9Pg7baeGRBlQJ8UNlAoWtsYpXOSzZOE6j+WvBPVqqRyMnV7J7VU4t67/QHLtS5T9aou19vpDFgceO48xd9G4lGyrjKEsewdJjUKxN99neUq7FwuMp2ta2ep9v6DY3b08Il7KNMahWmOaxc486oRrcso3AcmJen8oZdFMi61+fIVF3vYqeiNS72dfZDefTCqfLuYnA33+Wk1hJ27CynYiaGvjwROxbw1L40MMk2Gw9eEpfFHhyFQMhXgabWT3Ff4Wj1ENo7kSss1KsXE2b2TM3zHds+hltV8BRRQmDTt5X1vIES/M8HGEGNC572h4PF4Qf2ZF5774qVDjSj5frgWTVx29wLFB+vJVIkPENkP4zPqpQFKdu9MdK2Lo54tIw/OfnNhKWQJTWHgmgok66tcatKrRcroUbQJt9BVFNnOM+ObfN8w4UGxSex2w/ND0EiZePWjHMPMBzNOnRBE/DRLqiIOklUkbQBpSZsJ7HwDCfOfARSVU9t/HN/Gv0w4IuaPwF2CGVvILM6j+es8MYliRvAGjgYrIVb8+Kzno/JeRoi6TAedAGgp99NPtXlq8HaU02GRYbmvh1vPZ21+aDd2VbGbfNssZT7HyQlCP5ggMjFfe2qmvvT+0JhDITH6y3MKWJt11UXNYcqipStwNzqzedXoxj3UCK2Q15beqXWvKn2l2ZSRlvA2X9SjQBpdsh0iKTmT6nXFeTIWlYpSqAruPQL+gjHfR8pqccM5byrKNXTlqcdq1k0zHdA1ET8uMaMbQHJyWAdFITUu/7Pmqcoq2ahSt5Td94iOthf8ZDe2GUYr0RUOe6BdHQS0I1gjAneg3gTzaKT+ACxjuEgrRoyUCSYF8L7HhnBliQMAkx0AfKzgn/rJ9HRiSQ9sa8YDbf6LcwgE+g87aAQr2CtcNBJ6tSzMcvJ6n+PnFQTA1PzLPAFc9TLGJ2/dYr0N2Mykpebhv7rFctvvuusH5D5AkBmwO8okOAbYzJZgdMATvaYL9HUNUUEY25E8IBctgPBX9rbTyKxRv54Axj88Qu/DPLtLr9+F+dt41/QSIMoZCEEhb8+f33Wbp/fMJAdP9Zqncqc4Lg+5d+h52v+lrbgu/puYrr3+Ix1ZaUDcj3KVqWuRxiMFeerpEQK8xE/A4XufHEgf6skUdRdlAmh5jQROTh6i+4sfT5kMEDtzksJwi80VDg/JEE+TANRhUoiepDqvkX+7i6VhyMj3RCAsgW6tJ18UQO32PeSQ/5IQrr5oICWqqtKMF2aIiXFe3lV/1WK//g0IIE526TJzkmx/evfzVbxbOu0yrlGVKLn7f4iT4iZ5hX9F4q7zOY2eJir8RgbthHkt4nXts9RGJHdRH7UwRFvXD/kxD1OFez9A== X-OriginatorOrg: yunjingtech.com X-MS-Exchange-CrossTenant-Network-Message-Id: 437ced64-3051-41a1-9662-08dac232733a X-MS-Exchange-CrossTenant-AuthSource: SG2PR06MB3742.apcprd06.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Nov 2022 09:11:56.5750 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: be2d5505-f7e6-4600-bbe2-b3201c91b344 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: uBSbbjMu6Hq2ofmlTBCb4MxHnE/6oW1pZoHncqAMHWN/3RhaqIJkRKAF8UAQRg3i31Tv2GLMRfFqH3Hc5ddwV9U4A7S7mlSY7fZcsbxX5Us= X-MS-Exchange-Transport-CrossTenantHeadersStamped: SI2PR06MB3881 X-Spam-Status: No, score=-0.9 required=5.0 tests=BAYES_00,FORGED_SPF_HELO, RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,T_SPF_PERMERROR autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1749009666380836290?= X-GMAIL-MSGID: =?utf-8?q?1749009666380836290?= The UP boards come with a few FPGA-controlled onboard LEDs: * UP Board: yellow, green, red * UP Squared: blue, yellow, green, red this patch depends on patch "mfd: Add support for UP board CPLD/FPGA" PATCH V3: PATCH V2: There is no change. Signed-off-by: chengwei --- drivers/leds/Kconfig | 10 +++++ drivers/leds/Makefile | 1 + drivers/leds/leds-upboard.c | 78 +++++++++++++++++++++++++++++++++++++ 3 files changed, 89 insertions(+) create mode 100644 drivers/leds/leds-upboard.c diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 499d0f215a8b..80b9c394c5b6 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -872,6 +872,16 @@ source "drivers/leds/flash/Kconfig" comment "RGB LED drivers" source "drivers/leds/rgb/Kconfig" +config LEDS_UPBOARD + tristate "LED support for the UP board" + depends on LEDS_CLASS + depends on MFD_UPBOARD_FPGA + help + This option enables support for the UP board LEDs. + + To compile this driver as a module, choose M here: the module + will be called leds-upboard. + comment "LED Triggers" source "drivers/leds/trigger/Kconfig" diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index 4fd2f92cd198..e72956645646 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -83,6 +83,7 @@ obj-$(CONFIG_LEDS_TI_LMU_COMMON) += leds-ti-lmu-common.o obj-$(CONFIG_LEDS_TLC591XX) += leds-tlc591xx.o obj-$(CONFIG_LEDS_TPS6105X) += leds-tps6105x.o obj-$(CONFIG_LEDS_TURRIS_OMNIA) += leds-turris-omnia.o +obj-$(CONFIG_LEDS_UPBOARD) += leds-upboard.o obj-$(CONFIG_LEDS_WM831X_STATUS) += leds-wm831x-status.o obj-$(CONFIG_LEDS_WM8350) += leds-wm8350.o obj-$(CONFIG_LEDS_WRAP) += leds-wrap.o diff --git a/drivers/leds/leds-upboard.c b/drivers/leds/leds-upboard.c new file mode 100644 index 000000000000..214325442f3b --- /dev/null +++ b/drivers/leds/leds-upboard.c @@ -0,0 +1,78 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * UP Board FPGA-based LED driver + * + * Copyright (c) 2017, Emutex Ltd. All rights reserved. + * + * Author: Javier Arteaga + */ + +#include +#include +#include +#include +#include +#include + +struct upboard_led { + struct led_classdev cdev; + struct regmap_field *field; +}; + +static enum led_brightness upboard_led_brightness_get(struct led_classdev *cdev) +{ + struct upboard_led *led = container_of(cdev, struct upboard_led, cdev); + int brightness = 0; + + regmap_field_read(led->field, &brightness); + + return brightness; +}; + +static void upboard_led_brightness_set(struct led_classdev *cdev, enum led_brightness brightness) +{ + struct upboard_led *led = container_of(cdev, struct upboard_led, cdev); + + regmap_field_write(led->field, brightness != LED_OFF); +}; + +static int __init upboard_led_probe(struct platform_device *pdev) +{ + struct upboard_fpga * const up_fpga = dev_get_drvdata(pdev->dev.parent); + struct reg_field fldconf = { + .reg = UPFPGA_REG_FUNC_EN0, + }; + struct upboard_led_data * const pdata = pdev->dev.platform_data; + struct upboard_led *led; + + led = devm_kzalloc(&pdev->dev, sizeof(*led), GFP_KERNEL); + if (!led) + return -ENOMEM; + + fldconf.lsb = pdata->bit; + fldconf.msb = pdata->bit; + led->field = devm_regmap_field_alloc(&pdev->dev, up_fpga->regmap, fldconf); + if (IS_ERR(led->field)) + return PTR_ERR(led->field); + + led->cdev.brightness_get = upboard_led_brightness_get; + led->cdev.brightness_set = upboard_led_brightness_set; + led->cdev.name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "upboard:%s:", + pdata->colour); + if (!led->cdev.name) + return -ENOMEM; + + return devm_led_classdev_register(&pdev->dev, &led->cdev); +}; + +static struct platform_driver upboard_led_driver = { + .driver = { + .name = "upboard-led", + }, +}; +module_platform_driver_probe(upboard_led_driver, upboard_led_probe); + +MODULE_AUTHOR("Javier Arteaga "); +MODULE_DESCRIPTION("UP Board LED driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:upboard-led");