From patchwork Tue Jun 19 10:57:09 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Vaittinen, Matti" X-Patchwork-Id: 10474063 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id A37B46029B for ; Tue, 19 Jun 2018 10:57:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8FB5928B4A for ; Tue, 19 Jun 2018 10:57:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8290E28B5E; Tue, 19 Jun 2018 10:57:21 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0FD6228B4A for ; Tue, 19 Jun 2018 10:57:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S937618AbeFSK5U (ORCPT ); Tue, 19 Jun 2018 06:57:20 -0400 Received: from mail-lf0-f67.google.com ([209.85.215.67]:33304 "EHLO mail-lf0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S937606AbeFSK5T (ORCPT ); Tue, 19 Jun 2018 06:57:19 -0400 Received: by mail-lf0-f67.google.com with SMTP id y20-v6so29463882lfy.0; Tue, 19 Jun 2018 03:57:17 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=2gLIs5eH+DY38SBBgKBWwnM4fk1IwCuevmTkeEtYkrQ=; b=NLvsuTWGrFyAwVEegWd7jhh/mY1K8vmQpKzCJIpNwOeO6LB0RrGZoPbZALZB39i/89 AeqxS2AqBNWNZhbJ4syM/miJfKDL+VHwA30dj7J4eOPJz2CAjEIf7b+wsgM8mA2AyijY RpJWkbYRtITux8VaGc1/Ss49vg3AaaxJ9TZzBtO0hR0B0+MJVx8PKHrduGAzGrVt5vTV fSYMVlpBjKJIFu1y2X9TyazZzahUU0Uhc8p6UHESxeylBBOHRZ61mDt8OOK0GsxNXoaa C4cyOhEwsKixC5p2cNBuAV3fQHylSwVkHOKXMElnKm7FX/TUjOMAY4kNKDVqvkne/V8F Y6oA== X-Gm-Message-State: APt69E0TPgfEFulRuW+r1BHGq+tThUB/ZKhxiygrpit/7KnbUtSP1Cwz UYkq5QKMetOioMudW4p2tc0= X-Google-Smtp-Source: ADUXVKLde8S0w3xtaZyY2ZiU0A2qHKaN/1Rja47QadS7X5PruKaD3cawLVSVRMwb7W9oNPAcfTrzzQ== X-Received: by 2002:a2e:428e:: with SMTP id h14-v6mr11345001ljf.136.1529405837229; Tue, 19 Jun 2018 03:57:17 -0700 (PDT) Received: from localhost.localdomain ([213.255.186.34]) by smtp.gmail.com with ESMTPSA id d4-v6sm3130953ljg.44.2018.06.19.03.57.15 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 19 Jun 2018 03:57:16 -0700 (PDT) Date: Tue, 19 Jun 2018 13:57:09 +0300 From: Matti Vaittinen To: mturquette@baylibre.com, sboyd@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, lee.jones@linaro.org, lgirdwood@gmail.com, broonie@kernel.org, mazziesaccount@gmail.com, arnd@arndb.de, dmitry.torokhov@gmail.com, sre@kernel.org, chenjh@rock-chips.com, andrew.smirnov@gmail.com, linus.walleij@linaro.org, kstewart@linuxfoundation.org, heiko@sntech.de, gregkh@linuxfoundation.org Cc: linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, mikko.mutanen@fi.rohmeurope.com, heikki.haikola@fi.rohmeurope.com Subject: [PATCH v7 4/4] input/power: Add driver for BD71837/BD71847 PMIC power button Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.2 (2017-12-15) Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP ROHM BD71837 PMIC power button driver providing power-key press information to user-space. Signed-off-by: Matti Vaittinen --- drivers/input/misc/Kconfig | 10 +++++ drivers/input/misc/Makefile | 1 + drivers/input/misc/bd718xx-pwrkey.c | 90 +++++++++++++++++++++++++++++++++++++ 3 files changed, 101 insertions(+) create mode 100644 drivers/input/misc/bd718xx-pwrkey.c diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 572b15fa18c2..694c05d3f9fb 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -96,6 +96,16 @@ config INPUT_ATMEL_CAPTOUCH To compile this driver as a module, choose M here: the module will be called atmel_captouch. +config INPUT_BD718XX_PWRKEY + tristate "ROHM BD71837/BD71847 power key support" + depends on MFD_BD71837 + help + Say Y here if you want support for the power key usually found + on boards using a ROHM BD71837/BD71847 compatible PMIC. + + To compile this driver as a module, choose M here: the + module will be called bd718xx-pwrkey. + config INPUT_BMA150 tristate "BMA150/SMB380 acceleration sensor support" depends on I2C diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index 72cde28649e2..ea5b81cbf2bf 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -20,6 +20,7 @@ obj-$(CONFIG_INPUT_ATI_REMOTE2) += ati_remote2.o obj-$(CONFIG_INPUT_ATLAS_BTNS) += atlas_btns.o obj-$(CONFIG_INPUT_ATMEL_CAPTOUCH) += atmel_captouch.o obj-$(CONFIG_INPUT_BMA150) += bma150.o +obj-$(CONFIG_INPUT_BD718XX_PWRKEY) += bd718xx-pwrkey.o obj-$(CONFIG_INPUT_CM109) += cm109.o obj-$(CONFIG_INPUT_CMA3000) += cma3000_d0x.o obj-$(CONFIG_INPUT_CMA3000_I2C) += cma3000_d0x_i2c.o diff --git a/drivers/input/misc/bd718xx-pwrkey.c b/drivers/input/misc/bd718xx-pwrkey.c new file mode 100644 index 000000000000..e8ac9475c3cf --- /dev/null +++ b/drivers/input/misc/bd718xx-pwrkey.c @@ -0,0 +1,90 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2018 ROHM Semiconductors +// bd718xx-pwrkey.c -- ROHM BD71837MWV and BD71847 power button driver + +#include +#include +#include +#include +#include +#include +#include +#include + +struct bd718xx_pwrkey { + struct input_dev *idev; + struct bd71837 *mfd; + int irq; +}; + +static irqreturn_t button_irq(int irq, void *_priv) +{ + struct input_dev *idev = (struct input_dev *)_priv; + + input_report_key(idev, KEY_POWER, 1); + input_sync(idev); + input_report_key(idev, KEY_POWER, 0); + input_sync(idev); + + return IRQ_HANDLED; +} + +static int bd718xx_pwr_btn_probe(struct platform_device *pdev) +{ + int err = -ENOMEM; + struct bd718xx_pwrkey *pk; + + pk = devm_kzalloc(&pdev->dev, sizeof(*pk), GFP_KERNEL); + if (!pk) + goto err_out; + + pk->mfd = dev_get_drvdata(pdev->dev.parent); + + pk->idev = devm_input_allocate_device(&pdev->dev); + if (!pk->idev) + goto err_out; + + pk->idev->name = "bd718xx-pwrkey"; + pk->idev->phys = "bd718xx-pwrkey/input0"; + pk->idev->dev.parent = &pdev->dev; + + input_set_capability(pk->idev, EV_KEY, KEY_POWER); + + err = platform_get_irq_byname(pdev, "pwr-btn-s"); + if (err < 0) { + dev_err(&pdev->dev, "could not get power key interrupt\n"); + goto err_out; + } + + pk->irq = err; + err = devm_request_threaded_irq(&pdev->dev, pk->irq, NULL, &button_irq, + 0, "bd718xx-pwrkey", pk); + if (err) + goto err_out; + + platform_set_drvdata(pdev, pk); + err = regmap_update_bits(pk->mfd->regmap, + BD71837_REG_PWRONCONFIG0, + BD718XX_PWRBTN_SHORT_PRESS_MASK, + BD718XX_PWRBTN_SHORT_PRESS_10MS); + if (err) + goto err_out; + + err = input_register_device(pk->idev); + +err_out: + + return err; +} + +static struct platform_driver bd718xx_pwr_btn_driver = { + .probe = bd718xx_pwr_btn_probe, + .driver = { + .name = "bd718xx-pwrkey", + }, +}; +module_platform_driver(bd718xx_pwr_btn_driver); +MODULE_DESCRIPTION("Power button driver for buttons connected to ROHM bd71837/bd71847 PMIC"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Matti Vaittinen "); +