From mboxrd@z Thu Jan 1 00:00:00 1970 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 BC4EFC433EF for ; Tue, 7 Jun 2022 05:53:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236375AbiFGFxd (ORCPT ); Tue, 7 Jun 2022 01:53:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59592 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236839AbiFGFxH (ORCPT ); Tue, 7 Jun 2022 01:53:07 -0400 Received: from mail-pj1-x102b.google.com (mail-pj1-x102b.google.com [IPv6:2607:f8b0:4864:20::102b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4C7E2140C6; Mon, 6 Jun 2022 22:53:06 -0700 (PDT) Received: by mail-pj1-x102b.google.com with SMTP id d12-20020a17090abf8c00b001e2eb431ce4so14506681pjs.1; Mon, 06 Jun 2022 22:53:06 -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=Fgmmdez2YLBvzLz/N5O3pA9gc8sSQ4ag8UiBs6nCanY=; b=h9gXRUmlvZssxYebh60B7y+6eGju0Vjf1fIzk4JxB6xZawVmH6w/DS1UBJU0wNTnnQ 9OMiHHyXDJmD7+w/0S3i01Q+SmtsSkctYXFLs0qmVMCtb2zycgf0HttkelMchWp6xS1b LOvPphyt3BOpbBymt969qOfu7xXay+dHJ7araycgDgMpnQEdvewFb5qc/ItgaVZFq/4t jwWNJImXrcZBL91jc74cYUjJd9Ip/JShpTc281/FsEpUET/RqTbxc1pOhXxBlGCB1CJs JTh6OReqgrX2ffARONz+NJX6Bs7PM72rLBui2GybUeF8EFs+9svcz01JN3Ds3AH55+qy Eayw== 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=Fgmmdez2YLBvzLz/N5O3pA9gc8sSQ4ag8UiBs6nCanY=; b=o3MguGQXLcj74FQnAWODjtmJhqSXhBO/rozy84X7sPEM8cP6PHQSLSr1zJS/wiQbVa LQEqnKOzqTVWCgmhBr62C327vnqdETduHKfPeX0Ig7tQlw7+aHq1ItpO4WVNFDU3btAs 61ed1fqvwdbEnM4R+TMs6x8nZsHT1v/jADW0sKSmsZRMk8aJktCfeUyVNdj2ge/oNn8q Q2FL42dmbcvwGKhiVqonl0ihyp/jHAXa6hh9bSHkFeLhsgg026afwTekcvZjOA1KdZdm eAddTYP9jU4lppJeUOu76IlI7ZqmMHDfNsBoH5xTYTu795NBOVUSzOQLUGwKL1hDRHQE yMcA== X-Gm-Message-State: AOAM532a9rLOatsMyb35+DjcPaJTMMaSDFG9C8adXRVqvoKwNtUxH1ds pQtD/dfxk1LQ8S0XMnqLBNKorw5gKeE= X-Google-Smtp-Source: ABdhPJyr8xr0wayTmQYYNh77h744b4u308+xWr/YYM3F87PpsJs/WVNCXJjl6oSUuqSmvB5+JqIYwA== X-Received: by 2002:a17:90a:1f4c:b0:1e6:6f77:c573 with SMTP id y12-20020a17090a1f4c00b001e66f77c573mr32257267pjy.17.1654581185722; Mon, 06 Jun 2022 22:53:05 -0700 (PDT) Received: from localhost.localdomain ([49.216.54.77]) by smtp.gmail.com with ESMTPSA id z41-20020a056a001da900b0051b62689ec2sm9203520pfw.129.2022.06.06.22.53.02 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 06 Jun 2022 22:53:05 -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 4/4] input: misc: rt5120: Add power key support Date: Tue, 7 Jun 2022 13:52:41 +0800 Message-Id: <1654581161-12349-5-git-send-email-u0084500@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1654581161-12349-1-git-send-email-u0084500@gmail.com> References: <1654581161-12349-1-git-send-email-u0084500@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: ChiYuan Huang Add RT5120 PMIC power key support. Signed-off-by: ChiYuan Huang --- drivers/input/misc/Kconfig | 9 +++ drivers/input/misc/Makefile | 1 + drivers/input/misc/rt5120-pwrkey.c | 115 +++++++++++++++++++++++++++++++++++++ 3 files changed, 125 insertions(+) create mode 100644 drivers/input/misc/rt5120-pwrkey.c diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index dd5227c..9c0d814 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -881,6 +881,15 @@ 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-pwerkey. + 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 b92c53a..164ea20 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -68,6 +68,7 @@ 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..42bd2f3 --- /dev/null +++ b/drivers/input/misc/rt5120-pwrkey.c @@ -0,0 +1,115 @@ +// 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; + int press_irq; + int release_irq; +}; + +static irqreturn_t rt5120_pwrkey_handler(int irq, void *devid) +{ + struct rt5120_priv *priv = devid; + unsigned int stat; + bool is_pressed; + int ret; + + ret = regmap_read(priv->regmap, RT5120_REG_INTSTAT, &stat); + if (ret) + return IRQ_NONE; + + is_pressed = !(stat & RT5120_PWRKEYSTAT_MASK); + + if ((is_pressed && irq == priv->press_irq) || + (!is_pressed && irq == priv->release_irq)) { + input_report_key(priv->input, KEY_POWER, is_pressed); + input_sync(priv->input); + } + + return IRQ_HANDLED; +} + +static int rt5120_pwrkey_probe(struct platform_device *pdev) +{ + struct rt5120_priv *priv; + int ret; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->regmap = dev_get_regmap(pdev->dev.parent, NULL); + if (!priv->regmap) { + dev_err(&pdev->dev, "Failed to init regmap\n"); + return -ENODEV; + } + + priv->press_irq = platform_get_irq_byname(pdev, "pwrkey-press"); + if (priv->press_irq < 0) + return priv->press_irq; + + priv->release_irq = platform_get_irq_byname(pdev, "pwrkey-release"); + if (priv->release_irq < 0) + return priv->release_irq; + + /* Make input device be device resource managed */ + priv->input = devm_input_allocate_device(&pdev->dev); + if (!priv->input) { + dev_err(&pdev->dev, "Failed to allocate input device\n"); + return -ENOMEM; + } + + 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) { + dev_err(&pdev->dev, "Failed to register input device\n"); + return ret; + } + + ret = devm_request_threaded_irq(&pdev->dev, priv->press_irq, NULL, + rt5120_pwrkey_handler, 0, + "pwrkey-press", priv); + if (ret) { + dev_err(&pdev->dev, "Failed to register pwrkey press irq\n"); + return ret; + } + + return devm_request_threaded_irq(&pdev->dev, priv->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"); -- 2.7.4