From patchwork Fri May 31 17:34:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karel Balej X-Patchwork-Id: 800721 Received: from smtp1.ms.mff.cuni.cz (smtp-in1.ms.mff.cuni.cz [195.113.20.234]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C6B5917E456; Fri, 31 May 2024 17:53:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.113.20.234 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717178001; cv=none; b=J9p/IGDXCJTcrmMBOtHXF7ZyTl/6Fhlw19SFNPfNBWpB4WmYf6x/FRYLaQrh7wRUVsWHEA7TPD8gO0LMtdlSlC4o5KbIIN3mtoLBlaTC4/WOa2T4ZHS1tDJGrrongmpf8BJC0EEDfZ+dDklUkFP2sbtOmp4xHmmiY1SJ8jELKnc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717178001; c=relaxed/simple; bh=6FRu3M63iROY9AFEk7kkSdRycHp4RajNb4bBVXTOofY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=aHcmpcTqGah3gQvsZczQeswVlDr4LNho5Wj1gRQNdXLwyYlSyv2yjBxwnsZL/eeTxzQNVlKas5o6vNEyS9IgvW+6l1ehtXMlFM8zh6B1y6LFl1tNRyB+lFRv0GChtSMFV5WTo3kvOQJonXcV+dXA91TYczINCjWK1hb1WWm2KnU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=matfyz.cz; spf=pass smtp.mailfrom=matfyz.cz; dkim=pass (2048-bit key) header.d=mff.cuni.cz header.i=@mff.cuni.cz header.b=aRNRf7hD; arc=none smtp.client-ip=195.113.20.234 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=matfyz.cz Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=matfyz.cz Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=mff.cuni.cz header.i=@mff.cuni.cz header.b="aRNRf7hD" X-SubmittedBy: id balejk@matfyz.cz subject /postalCode=110+2000/O=Univerzita+20Karlova/street=Ovocn+5CxC3+5CxBD+20trh+20560/5/ST=Praha, +20Hlavn+5CxC3+5CxAD+20m+5CxC4+5Cx9Bsto/C=CZ/CN=Karel+20Balej/emailAddress=balejk@matfyz.cz serial F5FD910E8FE2121B897F7E55B84E351D issued by /C=NL/O=GEANT+20Vereniging/CN=GEANT+20Personal+20CA+204 auth type TLS.CUNI DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mff.cuni.cz; s=submission; t=1717177976; x=1718477976; bh=e4Mue6P5b/tRppDhF+0j1kQVD13oKlxkev/pr805xWw=; h=From; b=aRNRf7hDIQ6S9IlyIlH8+kiy6C1y0Xcxkzs8Eqwr8cNJmekBdadUxUAt1Bqgc4U3j ySQ0mEUqfzNwVs+XZmsceBm4vjIhMi0k4rjZBmWI0HBuNT9lP36PzNtpaGMBpGB20R 0Z8lDwhLkjMfcHfbKcN2ZT/O/M0O+mnj0fx+FWqyzrFSjVOrqWz9mfjzaigS96fsFY STm2WYsvbD8lwWo9Txd8ythBKFOs+tWWr1ziMiFI5Wj8kBequt6KRqU/kHZtmxCNRE dp0Xkfhz7FWtUizt3jah9RDja+EfCO4DYtV44qapCXJFwtEAsGSMNxDTWwjBl7xuSW NTeqiLZF8TN6Q== Received: from localhost (internet5.mraknet.com [185.200.108.250]) (authenticated) by smtp1.ms.mff.cuni.cz (8.16.1/8.16.1) with ESMTPS id 44VHqsW1001121 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=OK); Fri, 31 May 2024 19:52:56 +0200 (CEST) (envelope-from balejk@matfyz.cz) From: Karel Balej To: Lee Jones , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Dmitry Torokhov , Liam Girdwood , Mark Brown , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-input@vger.kernel.org Cc: =?utf-8?q?Duje_Mihanovi=C4=87?= , ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, balejk@matfyz.cz Subject: [PATCH v7 4/5] input: add onkey driver for Marvell 88PM886 PMIC Date: Fri, 31 May 2024 19:34:59 +0200 Message-ID: <20240531175109.15599-5-balejk@matfyz.cz> X-Mailer: git-send-email 2.45.1 In-Reply-To: <20240531175109.15599-1-balejk@matfyz.cz> References: <20240531175109.15599-1-balejk@matfyz.cz> Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Marvell 88PM886 PMIC provides onkey among other things. Add client driver to handle it. The driver currently only provides a basic support omitting additional functions found in the vendor version, such as long onkey and GPIO integration. Acked-by: Dmitry Torokhov Signed-off-by: Karel Balej --- Notes: v5: - Remove kernel.h include. RFC v4: - Reflect MFD driver changes: - chip->regmaps[...] -> chip->regmap - Address Dmitry's feedback: - Add ID table. - Add Ack. RFC v3: - Drop wakeup-source. RFC v2: - Address Dmitry's feedback: - Sort includes alphabetically. - Drop onkey->irq. - ret -> err in irq_handler and no initialization. - Break long lines and other formatting. - Do not clobber platform_get_irq error. - Do not set device parent manually. - Use input_set_capability. - Use the wakeup-source DT property. - Drop of_match_table. - Use more temporaries. - Use dev_err_probe. - Modify Kconfig description. drivers/input/misc/88pm886-onkey.c | 98 ++++++++++++++++++++++++++++++ drivers/input/misc/Kconfig | 7 +++ drivers/input/misc/Makefile | 1 + 3 files changed, 106 insertions(+) create mode 100644 drivers/input/misc/88pm886-onkey.c diff --git a/drivers/input/misc/88pm886-onkey.c b/drivers/input/misc/88pm886-onkey.c new file mode 100644 index 000000000000..284ff5190b6e --- /dev/null +++ b/drivers/input/misc/88pm886-onkey.c @@ -0,0 +1,98 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include +#include +#include +#include +#include + +#include + +struct pm886_onkey { + struct input_dev *idev; + struct pm886_chip *chip; +}; + +static irqreturn_t pm886_onkey_irq_handler(int irq, void *data) +{ + struct pm886_onkey *onkey = data; + struct regmap *regmap = onkey->chip->regmap; + struct input_dev *idev = onkey->idev; + struct device *parent = idev->dev.parent; + unsigned int val; + int err; + + err = regmap_read(regmap, PM886_REG_STATUS1, &val); + if (err) { + dev_err(parent, "Failed to read status: %d\n", err); + return IRQ_NONE; + } + val &= PM886_ONKEY_STS1; + + input_report_key(idev, KEY_POWER, val); + input_sync(idev); + + return IRQ_HANDLED; +} + +static int pm886_onkey_probe(struct platform_device *pdev) +{ + struct pm886_chip *chip = dev_get_drvdata(pdev->dev.parent); + struct device *dev = &pdev->dev; + struct pm886_onkey *onkey; + struct input_dev *idev; + int irq, err; + + onkey = devm_kzalloc(dev, sizeof(*onkey), GFP_KERNEL); + if (!onkey) + return -ENOMEM; + + onkey->chip = chip; + + irq = platform_get_irq(pdev, 0); + if (irq < 0) + return dev_err_probe(dev, irq, "Failed to get IRQ\n"); + + idev = devm_input_allocate_device(dev); + if (!idev) { + dev_err(dev, "Failed to allocate input device\n"); + return -ENOMEM; + } + onkey->idev = idev; + + idev->name = "88pm886-onkey"; + idev->phys = "88pm886-onkey/input0"; + idev->id.bustype = BUS_I2C; + + input_set_capability(idev, EV_KEY, KEY_POWER); + + err = devm_request_threaded_irq(dev, irq, NULL, pm886_onkey_irq_handler, + IRQF_ONESHOT | IRQF_NO_SUSPEND, "onkey", + onkey); + if (err) + return dev_err_probe(dev, err, "Failed to request IRQ\n"); + + err = input_register_device(idev); + if (err) + return dev_err_probe(dev, err, "Failed to register input device\n"); + + return 0; +} + +static const struct platform_device_id pm886_onkey_id_table[] = { + { "88pm886-onkey", }, + { } +}; +MODULE_DEVICE_TABLE(platform, pm886_onkey_id_table); + +static struct platform_driver pm886_onkey_driver = { + .driver = { + .name = "88pm886-onkey", + }, + .probe = pm886_onkey_probe, + .id_table = pm886_onkey_id_table, +}; +module_platform_driver(pm886_onkey_driver); + +MODULE_DESCRIPTION("Marvell 88PM886 onkey driver"); +MODULE_AUTHOR("Karel Balej "); +MODULE_LICENSE("GPL"); diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 6ba984d7f0b1..16a079d9f0f2 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -33,6 +33,13 @@ config INPUT_88PM80X_ONKEY To compile this driver as a module, choose M here: the module will be called 88pm80x_onkey. +config INPUT_88PM886_ONKEY + tristate "Marvell 88PM886 onkey support" + depends on MFD_88PM886_PMIC + help + Support the onkey of Marvell 88PM886 PMIC as an input device + reporting power button status. + config INPUT_AB8500_PONKEY tristate "AB8500 Pon (PowerOn) Key" depends on AB8500_CORE diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index 04296a4abe8e..054a6dc1ac27 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_INPUT_88PM860X_ONKEY) += 88pm860x_onkey.o obj-$(CONFIG_INPUT_88PM80X_ONKEY) += 88pm80x_onkey.o +obj-$(CONFIG_INPUT_88PM886_ONKEY) += 88pm886-onkey.o obj-$(CONFIG_INPUT_AB8500_PONKEY) += ab8500-ponkey.o obj-$(CONFIG_INPUT_AD714X) += ad714x.o obj-$(CONFIG_INPUT_AD714X_I2C) += ad714x-i2c.o