From patchwork Thu Jul 14 06:42:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: ChiYuan Huang X-Patchwork-Id: 12917346 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F0BA4CCA481 for ; Thu, 14 Jul 2022 06:42:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235331AbiGNGmv (ORCPT ); Thu, 14 Jul 2022 02:42:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56724 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235152AbiGNGmu (ORCPT ); Thu, 14 Jul 2022 02:42:50 -0400 Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5C8D220192; Wed, 13 Jul 2022 23:42:49 -0700 (PDT) Received: by mail-pj1-x1035.google.com with SMTP id g16-20020a17090a7d1000b001ea9f820449so7461746pjl.5; Wed, 13 Jul 2022 23:42:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=CQqVk/li2uOK4C//a5rwR6TqVXPgBjhZsLgz0JKgFDU=; b=AXZ9xZdpXEUtWip0sPDD/VsyxbdfHpX6risn1bku8ubHaF7a3IBDNkvE0JFKbGoqOR 1SBDm4GZPlAP7j3cn/YRtdXSqOZ0RVPCz4yqo2o1UAcrZj37H546OO7ie47QFIyxGRKu pm0pzT2eZZoxuxa/kkHhLV4apxZfPuxj2uC8lFSqSOlTzNoOMqd42VbcVPQJqmw7LOnt R2Gq5qHDbkuQP8p4aeyo/bcjLf8zMPrdiu6G4VHN8C+3DOJWZufGakNB7aWT3vWXsKkz aFNp026wkYXOfa2cSw6BbvsDZYMoNpEfp/AMZglg817X4FQQBgdtPRyngTtnaAgLlUeU nEeQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=CQqVk/li2uOK4C//a5rwR6TqVXPgBjhZsLgz0JKgFDU=; b=72Zi2Ngo+wcj5HVswAlYyXwy6XQH8StfGjWRecd+lA3jDpjc+bolBXnhbSCsaWsoR1 eYd6AxGXKLRfcl6llj40U8+z23/Ip0CxksuZ01Ev9P707eHmHZG4272K+xhzaLw1RM35 nFibhzwm2AtuCh7E1t+hOIdemaPDiLR2gJBnQoD2I6s9R1hgw6RuUyeY8DuW+0meboZK 9ubyXWCPK7GY6TeVWKLge3DvlLoMggXtG24ddvAa2e3I3W4IXcINtEtjvI9JyuSy5/4p FFZjenGzRyxoKDvsVdpXvEXTdW74afHYToxfZ8PU90NFxaeIgw5KCD8m77iU/Ae5/RAp oSkw== X-Gm-Message-State: AJIora+hO4DnkKBjoP+zeBoHo3xfLtfuRSVe4LSdf55euB74clFl9piL AQ8dhz41PwdREuRzPIcF0kZTN2oFjjY= X-Google-Smtp-Source: AGRyM1veZOyPzmOG8yG9Gv2+kYzBULMW5FwgCKBa5rIdnvPodMikl82BxoTfi6MEfBtDo8ueuAIACg== X-Received: by 2002:a17:902:c944:b0:16c:5897:7ea0 with SMTP id i4-20020a170902c94400b0016c58977ea0mr7057264pla.127.1657780968618; Wed, 13 Jul 2022 23:42:48 -0700 (PDT) Received: from localhost.localdomain ([2402:7500:486:199:217d:a3c8:f1ea:4115]) by smtp.gmail.com with ESMTPSA id nt14-20020a17090b248e00b001ef82e5f5aesm616291pjb.47.2022.07.13.23.42.45 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 13 Jul 2022 23:42:48 -0700 (PDT) From: cy_huang To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, lee.jones@linaro.org, broonie@kernel.org, dmitry.torokhov@gmail.com Cc: lgirdwood@gmail.com, cy_huang@richtek.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-input@vger.kernel.org Subject: [PATCH v3 3/3] input: misc: rt5120: Add power key support Date: Thu, 14 Jul 2022 14:42:17 +0800 Message-Id: <1657780937-20891-4-git-send-email-u0084500@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1657780937-20891-1-git-send-email-u0084500@gmail.com> References: <1657780937-20891-1-git-send-email-u0084500@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org From: ChiYuan Huang Add RT5120 PMIC power key support. Signed-off-by: ChiYuan Huang --- Since v3: - Simplify the power key irq handler key report - Since press and release irq not needed to keep in private data, change 'press', 'release' irq as local variable only. - Fix Kconfig typo for pwrkey. --- drivers/input/misc/Kconfig | 9 ++++ drivers/input/misc/Makefile | 1 + drivers/input/misc/rt5120-pwrkey.c | 105 +++++++++++++++++++++++++++++++++++++ 3 files changed, 115 insertions(+) create mode 100644 drivers/input/misc/rt5120-pwrkey.c diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index a18ab73..92daa4d 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -891,6 +891,15 @@ config INPUT_SC27XX_VIBRA To compile this driver as a module, choose M here. The module will be called sc27xx_vibra. +config INPUT_RT5120_PWRKEY + tristate "RT5120 PMIC power key support" + depends on MFD_RT5120 + help + This enables support for RT5120 PMIC power key driver. + + To compile this driver as a module, choose M here. the module will + be called rt5120-pwrkey. + config INPUT_STPMIC1_ONKEY tristate "STPMIC1 PMIC Onkey support" depends on MFD_STPMIC1 diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index 28dfc44..d1fb00e 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -69,6 +69,7 @@ obj-$(CONFIG_INPUT_RAVE_SP_PWRBUTTON) += rave-sp-pwrbutton.o obj-$(CONFIG_INPUT_RB532_BUTTON) += rb532_button.o obj-$(CONFIG_INPUT_REGULATOR_HAPTIC) += regulator-haptic.o obj-$(CONFIG_INPUT_RETU_PWRBUTTON) += retu-pwrbutton.o +obj-$(CONFIG_INPUT_RT5120_PWRKEY) += rt5120-pwrkey.o obj-$(CONFIG_INPUT_AXP20X_PEK) += axp20x-pek.o obj-$(CONFIG_INPUT_GPIO_ROTARY_ENCODER) += rotary_encoder.o obj-$(CONFIG_INPUT_RK805_PWRKEY) += rk805-pwrkey.o diff --git a/drivers/input/misc/rt5120-pwrkey.c b/drivers/input/misc/rt5120-pwrkey.c new file mode 100644 index 00000000..b6a5ac4 --- /dev/null +++ b/drivers/input/misc/rt5120-pwrkey.c @@ -0,0 +1,105 @@ +// SPDX-License-Identifier: GPL-2.0+ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define RT5120_REG_INTSTAT 0x1E +#define RT5120_PWRKEYSTAT_MASK BIT(7) + +struct rt5120_priv { + struct regmap *regmap; + struct input_dev *input; +}; + +static irqreturn_t rt5120_pwrkey_handler(int irq, void *devid) +{ + struct rt5120_priv *priv = devid; + unsigned int stat; + int ret; + + ret = regmap_read(priv->regmap, RT5120_REG_INTSTAT, &stat); + if (ret) + return IRQ_NONE; + + input_report_key(priv->input, KEY_POWER, + !(stat & RT5120_PWRKEYSTAT_MASK)); + input_sync(priv->input); + + return IRQ_HANDLED; +} + +static int rt5120_pwrkey_probe(struct platform_device *pdev) +{ + struct rt5120_priv *priv; + struct device *dev = &pdev->dev; + int press_irq, release_irq; + int ret; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->regmap = dev_get_regmap(dev->parent, NULL); + if (!priv->regmap) + return dev_err_probe(dev, -ENODEV, "Failed to init regmap\n"); + + press_irq = platform_get_irq_byname(pdev, "pwrkey-press"); + if (press_irq < 0) + return press_irq; + + release_irq = platform_get_irq_byname(pdev, "pwrkey-release"); + if (release_irq < 0) + return release_irq; + + /* Make input device be device resource managed */ + priv->input = devm_input_allocate_device(dev); + if (!priv->input) + return dev_err_probe(dev, -ENOMEM, + "Failed to allocate input device\n"); + + priv->input->name = "rt5120_pwrkey"; + priv->input->phys = "rt5120_pwrkey/input0"; + priv->input->id.bustype = BUS_I2C; + input_set_capability(priv->input, EV_KEY, KEY_POWER); + + ret = input_register_device(priv->input); + if (ret) + return dev_err_probe(dev, ret, + "Failed to register input device\n"); + + ret = devm_request_threaded_irq(dev, press_irq, NULL, + rt5120_pwrkey_handler, 0, + "pwrkey-press", priv); + if (ret) + return dev_err_probe(dev, ret, + "Failed to register pwrkey press irq\n"); + + return devm_request_threaded_irq(dev, release_irq, NULL, + rt5120_pwrkey_handler, 0, + "pwrkey-release", priv); +} + +static const struct of_device_id r5120_pwrkey_match_table[] = { + { .compatible = "richtek,rt5120-pwrkey" }, + {} +}; +MODULE_DEVICE_TABLE(of, r5120_pwrkey_match_table); + +static struct platform_driver rt5120_pwrkey_driver = { + .driver = { + .name = "rt5120-pwrkey", + .of_match_table = r5120_pwrkey_match_table, + }, + .probe = rt5120_pwrkey_probe, +}; +module_platform_driver(rt5120_pwrkey_driver); + +MODULE_AUTHOR("ChiYuan Huang "); +MODULE_DESCRIPTION("Richtek RT5120 power key driver"); +MODULE_LICENSE("GPL v2");