From patchwork Fri Apr 26 19:47:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 10919633 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 27DBD1398 for ; Fri, 26 Apr 2019 19:50:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 17BC228E71 for ; Fri, 26 Apr 2019 19:50:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0B21F28E72; Fri, 26 Apr 2019 19:50:32 +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=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 AAB5928E6E for ; Fri, 26 Apr 2019 19:50:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726757AbfDZTuO (ORCPT ); Fri, 26 Apr 2019 15:50:14 -0400 Received: from mail.z3ntu.xyz ([128.199.32.197]:46824 "EHLO mail.z3ntu.xyz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726400AbfDZTuN (ORCPT ); Fri, 26 Apr 2019 15:50:13 -0400 Received: from localhost.localdomain (80-110-119-101.cgn.dynamic.surfer.at [80.110.119.101]) by mail.z3ntu.xyz (Postfix) with ESMTPSA id 002EBC5309; Fri, 26 Apr 2019 19:50:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=z3ntu.xyz; s=z3ntu; t=1556308210; bh=cWxIdwLO5sI8TQbQdV/dUPitSThiFu9+Fx7tFqperkY=; h=From:To:Cc:Subject:Date; b=VugJoNAyrzbXxb2eRQMOweFZqG2Adl8X7a4dmOxGyRh5cExaP0SPqzqPZ5xpVeQs6 c94HmCDDIHkX2XZ2D2ogmMKbHmlJh5VmwPSIG9M+znvQMjiKudBz0RAaw463t74vn8 SRGrfvV+zI7qMRVKP8eykfLwNbLbAoMvyEUsG8EU= From: Luca Weiss Cc: Dmitry Torokhov , Rob Herring , Mark Rutland , Mauro Carvalho Chehab , Pascal PAILLET-LME , Coly Li , Lee Jones , Xiaotong Lu , Brian Masney , Rob Herring , Baolin Wang , David Brown , linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM SUPPORT), linux-input@vger.kernel.org (open list:INPUT (KEYBOARD, MOUSE, JOYSTICK , TOUCHSCREEN)...), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list), Luca Weiss Subject: [PATCH v5 1/3] dt-bindings: input: add GPIO controllable vibrator Date: Fri, 26 Apr 2019 21:47:45 +0200 Message-Id: <20190426194747.22256-1-luca@z3ntu.xyz> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Provide a simple driver for GPIO controllable vibrators. It will be used by the Fairphone 2. Signed-off-by: Luca Weiss Reviewed-by: Rob Herring --- Changes for v5: - Simply compatible property definition - Remove reference to regulator schema .../bindings/input/gpio-vibrator.yaml | 37 +++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/gpio-vibrator.yaml diff --git a/Documentation/devicetree/bindings/input/gpio-vibrator.yaml b/Documentation/devicetree/bindings/input/gpio-vibrator.yaml new file mode 100644 index 000000000000..903475f52dbd --- /dev/null +++ b/Documentation/devicetree/bindings/input/gpio-vibrator.yaml @@ -0,0 +1,37 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/bindings/input/gpio-vibrator.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: GPIO vibrator + +maintainers: + - Luca Weiss + +description: |+ + Registers a GPIO device as vibrator, where the on/off capability is controlled by a GPIO. + +properties: + compatible: + const: gpio-vibrator + + enable-gpios: + maxItems: 1 + + vcc-supply: + description: Regulator that provides power + +required: + - compatible + - enable-gpios + +examples: + - | + #include + + vibrator { + compatible = "gpio-vibrator"; + enable-gpios = <&msmgpio 86 GPIO_ACTIVE_HIGH>; + vcc-supply = <&pm8941_l18>; + }; From patchwork Fri Apr 26 19:47:46 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 10919625 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D923C933 for ; Fri, 26 Apr 2019 19:50:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B9A6B28E6E for ; Fri, 26 Apr 2019 19:50:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A7E1028E72; Fri, 26 Apr 2019 19:50:22 +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=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 D556A28E6E for ; Fri, 26 Apr 2019 19:50:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726809AbfDZTuU (ORCPT ); Fri, 26 Apr 2019 15:50:20 -0400 Received: from mail.z3ntu.xyz ([128.199.32.197]:46840 "EHLO mail.z3ntu.xyz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726694AbfDZTuP (ORCPT ); Fri, 26 Apr 2019 15:50:15 -0400 Received: from localhost.localdomain (80-110-119-101.cgn.dynamic.surfer.at [80.110.119.101]) by mail.z3ntu.xyz (Postfix) with ESMTPSA id DCD2AC534A; Fri, 26 Apr 2019 19:50:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=z3ntu.xyz; s=z3ntu; t=1556308211; bh=QEjqScJXzk089oJ7g7no45LVh2ccgjvAnPyeRhnvr/8=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=xhzaJw20q1jy1I5B+XWcsJCYl97uLLujb+8aPDSX8Sg33+vvNmRkzcPGVmIpnoPX7 njQnf9JJb1zoIk5hxH9usP7aQb8oRhtq8RT47+g2Ig+7HqegSyHKiufag2Ex9Gqq/6 WnYodFnc+9iRu9MYJEuRh9nxJ1VJuD0HZlvilPAw= From: Luca Weiss Cc: Dmitry Torokhov , Rob Herring , Mark Rutland , Mauro Carvalho Chehab , Pascal PAILLET-LME , Coly Li , Lee Jones , Xiaotong Lu , Brian Masney , Rob Herring , Baolin Wang , David Brown , linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM SUPPORT), linux-input@vger.kernel.org (open list:INPUT (KEYBOARD, MOUSE, JOYSTICK , TOUCHSCREEN)...), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list), Luca Weiss Subject: [PATCH v5 2/3] Input: add a driver for GPIO controllable vibrators Date: Fri, 26 Apr 2019 21:47:46 +0200 Message-Id: <20190426194747.22256-2-luca@z3ntu.xyz> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190426194747.22256-1-luca@z3ntu.xyz> References: <20190426194747.22256-1-luca@z3ntu.xyz> MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Provide a simple driver for GPIO controllable vibrators. It will be used by the Fairphone 2. Signed-off-by: Luca Weiss --- drivers/input/misc/Kconfig | 12 ++ drivers/input/misc/Makefile | 1 + drivers/input/misc/gpio-vibra.c | 209 ++++++++++++++++++++++++++++++++ 3 files changed, 222 insertions(+) create mode 100644 drivers/input/misc/gpio-vibra.c diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index e15ed1bb8558..6dfe9e2fe5b1 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -290,6 +290,18 @@ config INPUT_GPIO_DECODER To compile this driver as a module, choose M here: the module will be called gpio_decoder. +config INPUT_GPIO_VIBRA + tristate "GPIO vibrator support" + depends on GPIOLIB || COMPILE_TEST + select INPUT_FF_MEMLESS + help + Say Y here to get support for GPIO based vibrator devices. + + If unsure, say N. + + To compile this driver as a module, choose M here: the module will be + called gpio-vibra. + config INPUT_IXP4XX_BEEPER tristate "IXP4XX Beeper support" depends on ARCH_IXP4XX diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index b936c5b1d4ac..f38ebbdb05e2 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -36,6 +36,7 @@ obj-$(CONFIG_INPUT_DRV2667_HAPTICS) += drv2667.o obj-$(CONFIG_INPUT_GP2A) += gp2ap002a00f.o obj-$(CONFIG_INPUT_GPIO_BEEPER) += gpio-beeper.o obj-$(CONFIG_INPUT_GPIO_DECODER) += gpio_decoder.o +obj-$(CONFIG_INPUT_GPIO_VIBRA) += gpio-vibra.o obj-$(CONFIG_INPUT_HISI_POWERKEY) += hisi_powerkey.o obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o obj-$(CONFIG_INPUT_IMS_PCU) += ims-pcu.o diff --git a/drivers/input/misc/gpio-vibra.c b/drivers/input/misc/gpio-vibra.c new file mode 100644 index 000000000000..b76c81015de9 --- /dev/null +++ b/drivers/input/misc/gpio-vibra.c @@ -0,0 +1,209 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * GPIO vibrator driver + * + * Copyright (C) 2019 Luca Weiss + * + * Based on PWM vibrator driver: + * Copyright (C) 2017 Collabora Ltd. + * + * Based on previous work from: + * Copyright (C) 2012 Dmitry Torokhov + * + * Based on PWM beeper driver: + * Copyright (C) 2010, Lars-Peter Clausen + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct gpio_vibrator { + struct input_dev *input; + struct gpio_desc *gpio; + struct regulator *vcc; + + struct work_struct play_work; + bool running; + bool vcc_on; +}; + +static int gpio_vibrator_start(struct gpio_vibrator *vibrator) +{ + struct device *pdev = vibrator->input->dev.parent; + int err; + + if (!vibrator->vcc_on) { + err = regulator_enable(vibrator->vcc); + if (err) { + dev_err(pdev, "failed to enable regulator: %d\n", err); + return err; + } + vibrator->vcc_on = true; + } + + gpiod_set_value_cansleep(vibrator->gpio, 1); + + return 0; +} + +static void gpio_vibrator_stop(struct gpio_vibrator *vibrator) +{ + gpiod_set_value_cansleep(vibrator->gpio, 0); + + if (vibrator->vcc_on) { + regulator_disable(vibrator->vcc); + vibrator->vcc_on = false; + } +} + +static void gpio_vibrator_play_work(struct work_struct *work) +{ + struct gpio_vibrator *vibrator = + container_of(work, struct gpio_vibrator, play_work); + + if (vibrator->running) + gpio_vibrator_start(vibrator); + else + gpio_vibrator_stop(vibrator); +} + +static int gpio_vibrator_play_effect(struct input_dev *dev, void *data, + struct ff_effect *effect) +{ + struct gpio_vibrator *vibrator = input_get_drvdata(dev); + + int level = effect->u.rumble.strong_magnitude; + + if (!level) + level = effect->u.rumble.weak_magnitude; + + if (level) + vibrator->running = true; + else + vibrator->running = false; + + schedule_work(&vibrator->play_work); + + return 0; +} + +static void gpio_vibrator_close(struct input_dev *input) +{ + struct gpio_vibrator *vibrator = input_get_drvdata(input); + + cancel_work_sync(&vibrator->play_work); + gpio_vibrator_stop(vibrator); + vibrator->running = false; +} + +static int gpio_vibrator_probe(struct platform_device *pdev) +{ + struct gpio_vibrator *vibrator; + int err; + + vibrator = devm_kzalloc(&pdev->dev, sizeof(*vibrator), GFP_KERNEL); + if (!vibrator) + return -ENOMEM; + + vibrator->input = devm_input_allocate_device(&pdev->dev); + if (!vibrator->input) + return -ENOMEM; + + vibrator->vcc = devm_regulator_get(&pdev->dev, "vcc"); + err = PTR_ERR_OR_ZERO(vibrator->vcc); + if (err) { + if (err != -EPROBE_DEFER) + dev_err(&pdev->dev, "Failed to request regulator: %d\n", + err); + return err; + } + + vibrator->gpio = devm_gpiod_get(&pdev->dev, "enable", GPIOD_OUT_LOW); + err = PTR_ERR_OR_ZERO(vibrator->gpio); + if (err) { + if (err != -EPROBE_DEFER) + dev_err(&pdev->dev, "Failed to request main gpio: %d\n", + err); + return err; + } + + INIT_WORK(&vibrator->play_work, gpio_vibrator_play_work); + + vibrator->input->name = "gpio-vibrator"; + vibrator->input->id.bustype = BUS_HOST; + vibrator->input->close = gpio_vibrator_close; + + input_set_drvdata(vibrator->input, vibrator); + input_set_capability(vibrator->input, EV_FF, FF_RUMBLE); + + err = input_ff_create_memless(vibrator->input, NULL, + gpio_vibrator_play_effect); + if (err) { + dev_err(&pdev->dev, "Couldn't create FF dev: %d\n", err); + return err; + } + + err = input_register_device(vibrator->input); + if (err) { + dev_err(&pdev->dev, "Couldn't register input dev: %d\n", err); + return err; + } + + platform_set_drvdata(pdev, vibrator); + + return 0; +} + +static int __maybe_unused gpio_vibrator_suspend(struct device *dev) +{ + struct gpio_vibrator *vibrator = dev_get_drvdata(dev); + + cancel_work_sync(&vibrator->play_work); + if (vibrator->running) + gpio_vibrator_stop(vibrator); + + return 0; +} + +static int __maybe_unused gpio_vibrator_resume(struct device *dev) +{ + struct gpio_vibrator *vibrator = dev_get_drvdata(dev); + + if (vibrator->running) + gpio_vibrator_start(vibrator); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(gpio_vibrator_pm_ops, + gpio_vibrator_suspend, gpio_vibrator_resume); + +#ifdef CONFIG_OF +static const struct of_device_id gpio_vibra_dt_match_table[] = { + { .compatible = "gpio-vibrator" }, + {} +}; +MODULE_DEVICE_TABLE(of, gpio_vibra_dt_match_table); +#endif + +static struct platform_driver gpio_vibrator_driver = { + .probe = gpio_vibrator_probe, + .driver = { + .name = "gpio-vibrator", + .pm = &gpio_vibrator_pm_ops, + .of_match_table = of_match_ptr(gpio_vibra_dt_match_table), + }, +}; +module_platform_driver(gpio_vibrator_driver); + +MODULE_AUTHOR("Luca Weiss "); +MODULE_DESCRIPTION("GPIO vibrator driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:gpio-vibrator"); From patchwork Fri Apr 26 19:47:47 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 10919631 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B4E6E15E9 for ; Fri, 26 Apr 2019 19:50:28 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A589C28E6E for ; Fri, 26 Apr 2019 19:50:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9981328E71; Fri, 26 Apr 2019 19:50:28 +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=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable 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 4F5D328E73 for ; Fri, 26 Apr 2019 19:50:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726400AbfDZTuP (ORCPT ); Fri, 26 Apr 2019 15:50:15 -0400 Received: from mail.z3ntu.xyz ([128.199.32.197]:46844 "EHLO mail.z3ntu.xyz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726726AbfDZTuO (ORCPT ); Fri, 26 Apr 2019 15:50:14 -0400 Received: from localhost.localdomain (80-110-119-101.cgn.dynamic.surfer.at [80.110.119.101]) by mail.z3ntu.xyz (Postfix) with ESMTPSA id D9A14C534C; Fri, 26 Apr 2019 19:50:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=z3ntu.xyz; s=z3ntu; t=1556308212; bh=ux5pPXNztCvPFa+LOzVo2tLbZzC7bbAoCxdqqREXPkk=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=cCzxyprJAUTdPU+iP/bwPScC1iioa3ucHGdxKq96k8tqT+IuUo+rNmwWsiPRpQrb8 q8qT5nPymBaa3y5w9g9O6mpyxYbCD/pfE34LksMkM7GXCx8tLQltluv3UaX4bbPqoa UOY/h5uBh18bOLyRiT7U1ZpJJGR3pKRpp1Zvbuy4= From: Luca Weiss Cc: Dmitry Torokhov , Rob Herring , Mark Rutland , Mauro Carvalho Chehab , Pascal PAILLET-LME , Coly Li , Lee Jones , Xiaotong Lu , Brian Masney , Rob Herring , Baolin Wang , David Brown , linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM SUPPORT), linux-input@vger.kernel.org (open list:INPUT (KEYBOARD, MOUSE, JOYSTICK , TOUCHSCREEN)...), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list), Luca Weiss Subject: [PATCH v5 3/3] ARM: dts: msm8974-FP2: Add vibration motor Date: Fri, 26 Apr 2019 21:47:47 +0200 Message-Id: <20190426194747.22256-3-luca@z3ntu.xyz> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190426194747.22256-1-luca@z3ntu.xyz> References: <20190426194747.22256-1-luca@z3ntu.xyz> MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add a node describing the vibration motor on the Fairphone 2. Signed-off-by: Luca Weiss --- arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts b/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts index 643c57f84818..bf402ae39226 100644 --- a/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts +++ b/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts @@ -50,6 +50,12 @@ }; }; + vibrator { + compatible = "gpio-vibrator"; + enable-gpios = <&msmgpio 86 GPIO_ACTIVE_HIGH>; + vcc-supply = <&pm8941_l18>; + }; + smd { rpm { rpm_requests { From patchwork Sat Apr 20 12:23:31 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 10910323 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A651F17EE for ; Sat, 20 Apr 2019 12:24:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9759F2870F for ; Sat, 20 Apr 2019 12:24:19 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8ADA928CD5; Sat, 20 Apr 2019 12:24:19 +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=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable 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 1B6792870F for ; Sat, 20 Apr 2019 12:24:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727977AbfDTMYQ (ORCPT ); Sat, 20 Apr 2019 08:24:16 -0400 Received: from mail.z3ntu.xyz ([128.199.32.197]:46428 "EHLO mail.z3ntu.xyz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726082AbfDTMYQ (ORCPT ); Sat, 20 Apr 2019 08:24:16 -0400 Received: from localhost.localdomain (91-115-28-155.adsl.highway.telekom.at [91.115.28.155]) by mail.z3ntu.xyz (Postfix) with ESMTPSA id 1F776C17A5; Sat, 20 Apr 2019 12:24:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=z3ntu.xyz; s=z3ntu; t=1555763053; bh=U/6xQAEPyP1EsnAjW4EqK13j+ZKhfQvV0IwSY8CpWEk=; h=From:To:Cc:Subject:Date; b=W/vcSW1w5ZNHo1cbiwivBW18eUdf1jQrpGnDl20De+Ki/yO4QJSV2fi9NyxwkfVnd tXou1MywKLQKzAbL2DvVJs8yq1SbCDcC42AI7+iMGlD2u4hCC3BHAeZRz3IUumeAZ/ MF6U2Aaa09FsBxvXKpeoWusmV0kZaEGN9hCyLvP4= From: Luca Weiss Cc: Dmitry Torokhov , Rob Herring , Mark Rutland , Mauro Carvalho Chehab , Pascal PAILLET-LME , Coly Li , Lee Jones , Xiaotong Lu , Brian Masney , Rob Herring , Baolin Wang , David Brown , linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM SUPPORT), linux-input@vger.kernel.org (open list:INPUT (KEYBOARD, MOUSE, JOYSTICK , TOUCHSCREEN)...), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list), Luca Weiss Subject: [PATCH v4 1/3] dt-bindings: input: add GPIO controllable vibrator Date: Sat, 20 Apr 2019 14:23:31 +0200 Message-Id: <20190420122333.23662-1-luca@z3ntu.xyz> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Provide a simple driver for GPIO controllable vibrators. It will be used by the Fairphone 2. Signed-off-by: Luca Weiss Reviewed-by: Rob Herring --- Changes from v3: - Convert .txt based doc to the new yaml based format .../bindings/input/gpio-vibrator.yaml | 39 +++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/gpio-vibrator.yaml diff --git a/Documentation/devicetree/bindings/input/gpio-vibrator.yaml b/Documentation/devicetree/bindings/input/gpio-vibrator.yaml new file mode 100644 index 000000000000..bca1b6ea07a4 --- /dev/null +++ b/Documentation/devicetree/bindings/input/gpio-vibrator.yaml @@ -0,0 +1,39 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/bindings/input/gpio-vibrator.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: GPIO vibrator + +maintainers: + - Luca Weiss + +description: |+ + Registers a GPIO device as vibrator, where the on/off capability is controlled by a GPIO. + +properties: + compatible: + items: + - const: gpio-vibrator + + enable-gpios: + maxItems: 1 + + vcc-supply: + $ref: /schemas/types.yaml#/definitions/phandle + description: Regulator that provides power + +required: + - compatible + - enable-gpios + +examples: + - | + #include + + vibrator { + compatible = "gpio-vibrator"; + enable-gpios = <&msmgpio 86 GPIO_ACTIVE_HIGH>; + vcc-supply = <&pm8941_l18>; + }; From patchwork Sat Apr 20 12:23:32 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 10910327 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 77240922 for ; Sat, 20 Apr 2019 12:24:28 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 68DF12870F for ; Sat, 20 Apr 2019 12:24:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5CC2928CD5; Sat, 20 Apr 2019 12:24:28 +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=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable 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 D3E502870F for ; Sat, 20 Apr 2019 12:24:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728300AbfDTMYT (ORCPT ); Sat, 20 Apr 2019 08:24:19 -0400 Received: from mail.z3ntu.xyz ([128.199.32.197]:46442 "EHLO mail.z3ntu.xyz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726179AbfDTMYS (ORCPT ); Sat, 20 Apr 2019 08:24:18 -0400 Received: from localhost.localdomain (91-115-28-155.adsl.highway.telekom.at [91.115.28.155]) by mail.z3ntu.xyz (Postfix) with ESMTPSA id D94A5C4BC4; Sat, 20 Apr 2019 12:24:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=z3ntu.xyz; s=z3ntu; t=1555763054; bh=jKCZU7nKGneH+crRFqKJQMpcp2oYDXPnPH5/3MmsDQY=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=GNcex7KOP7N5DCof5dkfvgt7jia6ms0siiZp63nKunLvlBlA7fQTtiAFL7u7cWaSt y/LAjzV7hPyXa+/lZu2yYwJezPWB6MaFr6qhvHmvH8fGZXKJkoJth7fBwa7oxrbhFc xIKKYNjwum0nt5wuQwhrE5KQqnQ55M3X1x7KjhB8= From: Luca Weiss Cc: Dmitry Torokhov , Rob Herring , Mark Rutland , Mauro Carvalho Chehab , Pascal PAILLET-LME , Coly Li , Lee Jones , Xiaotong Lu , Brian Masney , Rob Herring , Baolin Wang , David Brown , linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM SUPPORT), linux-input@vger.kernel.org (open list:INPUT (KEYBOARD, MOUSE, JOYSTICK , TOUCHSCREEN)...), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list), Luca Weiss Subject: [PATCH v4 2/3] Input: add a driver for GPIO controllable vibrators Date: Sat, 20 Apr 2019 14:23:32 +0200 Message-Id: <20190420122333.23662-2-luca@z3ntu.xyz> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190420122333.23662-1-luca@z3ntu.xyz> References: <20190420122333.23662-1-luca@z3ntu.xyz> MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Provide a simple driver for GPIO controllable vibrators. It will be used by the Fairphone 2. Signed-off-by: Luca Weiss --- Changes from v3: - Apply suggestions from Stephen Boyd drivers/input/misc/Kconfig | 12 ++ drivers/input/misc/Makefile | 1 + drivers/input/misc/gpio-vibra.c | 209 ++++++++++++++++++++++++++++++++ 3 files changed, 222 insertions(+) create mode 100644 drivers/input/misc/gpio-vibra.c diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index e15ed1bb8558..6dfe9e2fe5b1 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -290,6 +290,18 @@ config INPUT_GPIO_DECODER To compile this driver as a module, choose M here: the module will be called gpio_decoder. +config INPUT_GPIO_VIBRA + tristate "GPIO vibrator support" + depends on GPIOLIB || COMPILE_TEST + select INPUT_FF_MEMLESS + help + Say Y here to get support for GPIO based vibrator devices. + + If unsure, say N. + + To compile this driver as a module, choose M here: the module will be + called gpio-vibra. + config INPUT_IXP4XX_BEEPER tristate "IXP4XX Beeper support" depends on ARCH_IXP4XX diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index b936c5b1d4ac..f38ebbdb05e2 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -36,6 +36,7 @@ obj-$(CONFIG_INPUT_DRV2667_HAPTICS) += drv2667.o obj-$(CONFIG_INPUT_GP2A) += gp2ap002a00f.o obj-$(CONFIG_INPUT_GPIO_BEEPER) += gpio-beeper.o obj-$(CONFIG_INPUT_GPIO_DECODER) += gpio_decoder.o +obj-$(CONFIG_INPUT_GPIO_VIBRA) += gpio-vibra.o obj-$(CONFIG_INPUT_HISI_POWERKEY) += hisi_powerkey.o obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o obj-$(CONFIG_INPUT_IMS_PCU) += ims-pcu.o diff --git a/drivers/input/misc/gpio-vibra.c b/drivers/input/misc/gpio-vibra.c new file mode 100644 index 000000000000..b76c81015de9 --- /dev/null +++ b/drivers/input/misc/gpio-vibra.c @@ -0,0 +1,209 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * GPIO vibrator driver + * + * Copyright (C) 2019 Luca Weiss + * + * Based on PWM vibrator driver: + * Copyright (C) 2017 Collabora Ltd. + * + * Based on previous work from: + * Copyright (C) 2012 Dmitry Torokhov + * + * Based on PWM beeper driver: + * Copyright (C) 2010, Lars-Peter Clausen + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct gpio_vibrator { + struct input_dev *input; + struct gpio_desc *gpio; + struct regulator *vcc; + + struct work_struct play_work; + bool running; + bool vcc_on; +}; + +static int gpio_vibrator_start(struct gpio_vibrator *vibrator) +{ + struct device *pdev = vibrator->input->dev.parent; + int err; + + if (!vibrator->vcc_on) { + err = regulator_enable(vibrator->vcc); + if (err) { + dev_err(pdev, "failed to enable regulator: %d\n", err); + return err; + } + vibrator->vcc_on = true; + } + + gpiod_set_value_cansleep(vibrator->gpio, 1); + + return 0; +} + +static void gpio_vibrator_stop(struct gpio_vibrator *vibrator) +{ + gpiod_set_value_cansleep(vibrator->gpio, 0); + + if (vibrator->vcc_on) { + regulator_disable(vibrator->vcc); + vibrator->vcc_on = false; + } +} + +static void gpio_vibrator_play_work(struct work_struct *work) +{ + struct gpio_vibrator *vibrator = + container_of(work, struct gpio_vibrator, play_work); + + if (vibrator->running) + gpio_vibrator_start(vibrator); + else + gpio_vibrator_stop(vibrator); +} + +static int gpio_vibrator_play_effect(struct input_dev *dev, void *data, + struct ff_effect *effect) +{ + struct gpio_vibrator *vibrator = input_get_drvdata(dev); + + int level = effect->u.rumble.strong_magnitude; + + if (!level) + level = effect->u.rumble.weak_magnitude; + + if (level) + vibrator->running = true; + else + vibrator->running = false; + + schedule_work(&vibrator->play_work); + + return 0; +} + +static void gpio_vibrator_close(struct input_dev *input) +{ + struct gpio_vibrator *vibrator = input_get_drvdata(input); + + cancel_work_sync(&vibrator->play_work); + gpio_vibrator_stop(vibrator); + vibrator->running = false; +} + +static int gpio_vibrator_probe(struct platform_device *pdev) +{ + struct gpio_vibrator *vibrator; + int err; + + vibrator = devm_kzalloc(&pdev->dev, sizeof(*vibrator), GFP_KERNEL); + if (!vibrator) + return -ENOMEM; + + vibrator->input = devm_input_allocate_device(&pdev->dev); + if (!vibrator->input) + return -ENOMEM; + + vibrator->vcc = devm_regulator_get(&pdev->dev, "vcc"); + err = PTR_ERR_OR_ZERO(vibrator->vcc); + if (err) { + if (err != -EPROBE_DEFER) + dev_err(&pdev->dev, "Failed to request regulator: %d\n", + err); + return err; + } + + vibrator->gpio = devm_gpiod_get(&pdev->dev, "enable", GPIOD_OUT_LOW); + err = PTR_ERR_OR_ZERO(vibrator->gpio); + if (err) { + if (err != -EPROBE_DEFER) + dev_err(&pdev->dev, "Failed to request main gpio: %d\n", + err); + return err; + } + + INIT_WORK(&vibrator->play_work, gpio_vibrator_play_work); + + vibrator->input->name = "gpio-vibrator"; + vibrator->input->id.bustype = BUS_HOST; + vibrator->input->close = gpio_vibrator_close; + + input_set_drvdata(vibrator->input, vibrator); + input_set_capability(vibrator->input, EV_FF, FF_RUMBLE); + + err = input_ff_create_memless(vibrator->input, NULL, + gpio_vibrator_play_effect); + if (err) { + dev_err(&pdev->dev, "Couldn't create FF dev: %d\n", err); + return err; + } + + err = input_register_device(vibrator->input); + if (err) { + dev_err(&pdev->dev, "Couldn't register input dev: %d\n", err); + return err; + } + + platform_set_drvdata(pdev, vibrator); + + return 0; +} + +static int __maybe_unused gpio_vibrator_suspend(struct device *dev) +{ + struct gpio_vibrator *vibrator = dev_get_drvdata(dev); + + cancel_work_sync(&vibrator->play_work); + if (vibrator->running) + gpio_vibrator_stop(vibrator); + + return 0; +} + +static int __maybe_unused gpio_vibrator_resume(struct device *dev) +{ + struct gpio_vibrator *vibrator = dev_get_drvdata(dev); + + if (vibrator->running) + gpio_vibrator_start(vibrator); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(gpio_vibrator_pm_ops, + gpio_vibrator_suspend, gpio_vibrator_resume); + +#ifdef CONFIG_OF +static const struct of_device_id gpio_vibra_dt_match_table[] = { + { .compatible = "gpio-vibrator" }, + {} +}; +MODULE_DEVICE_TABLE(of, gpio_vibra_dt_match_table); +#endif + +static struct platform_driver gpio_vibrator_driver = { + .probe = gpio_vibrator_probe, + .driver = { + .name = "gpio-vibrator", + .pm = &gpio_vibrator_pm_ops, + .of_match_table = of_match_ptr(gpio_vibra_dt_match_table), + }, +}; +module_platform_driver(gpio_vibrator_driver); + +MODULE_AUTHOR("Luca Weiss "); +MODULE_DESCRIPTION("GPIO vibrator driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:gpio-vibrator"); From patchwork Sat Apr 20 12:23:33 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 10910329 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6AD451390 for ; Sat, 20 Apr 2019 12:24:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 594AB28917 for ; Sat, 20 Apr 2019 12:24:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 480A928CD5; Sat, 20 Apr 2019 12:24:30 +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=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 259EE2870F for ; Sat, 20 Apr 2019 12:24:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728270AbfDTMYS (ORCPT ); Sat, 20 Apr 2019 08:24:18 -0400 Received: from mail.z3ntu.xyz ([128.199.32.197]:46448 "EHLO mail.z3ntu.xyz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727640AbfDTMYR (ORCPT ); Sat, 20 Apr 2019 08:24:17 -0400 Received: from localhost.localdomain (91-115-28-155.adsl.highway.telekom.at [91.115.28.155]) by mail.z3ntu.xyz (Postfix) with ESMTPSA id B2720C4BCF; Sat, 20 Apr 2019 12:24:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=z3ntu.xyz; s=z3ntu; t=1555763055; bh=QR00LtWv8/eoQ1jFUpVKmnz8LHOduZ1ATvV/Pnuo9is=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=tyC6yRfm8zcoSAdGI+9bjQsDcSGmSHFHVZyyYhBk3u7BzU/enWth+VLWc1xMsun20 PDYtjoI5XiZVuU9DTmnM25SbDZHcOxmZZq/l3UDQcMMu9EiOOhV0CPl32UElcvAFqg Hh/nOikB67N0rpJ2VDEYVYbOtUZ5IGsU2watXLMM= From: Luca Weiss Cc: Dmitry Torokhov , Rob Herring , Mark Rutland , Mauro Carvalho Chehab , Pascal PAILLET-LME , Coly Li , Lee Jones , Xiaotong Lu , Brian Masney , Rob Herring , Baolin Wang , David Brown , linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM SUPPORT), linux-input@vger.kernel.org (open list:INPUT (KEYBOARD, MOUSE, JOYSTICK , TOUCHSCREEN)...), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list), Luca Weiss Subject: [PATCH v4 3/3] ARM: dts: msm8974-FP2: Add vibration motor Date: Sat, 20 Apr 2019 14:23:33 +0200 Message-Id: <20190420122333.23662-3-luca@z3ntu.xyz> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190420122333.23662-1-luca@z3ntu.xyz> References: <20190420122333.23662-1-luca@z3ntu.xyz> MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Luca Weiss --- arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts b/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts index 643c57f84818..bf402ae39226 100644 --- a/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts +++ b/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts @@ -50,6 +50,12 @@ }; }; + vibrator { + compatible = "gpio-vibrator"; + enable-gpios = <&msmgpio 86 GPIO_ACTIVE_HIGH>; + vcc-supply = <&pm8941_l18>; + }; + smd { rpm { rpm_requests { From patchwork Fri Apr 12 15:06:23 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 10898533 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7D9671874 for ; Fri, 12 Apr 2019 15:07:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 680F228F10 for ; Fri, 12 Apr 2019 15:07:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5C70F28F5B; Fri, 12 Apr 2019 15:07:08 +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=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable 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 BD30C28EE3 for ; Fri, 12 Apr 2019 15:07:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726881AbfDLPGt (ORCPT ); Fri, 12 Apr 2019 11:06:49 -0400 Received: from mail.z3ntu.xyz ([128.199.32.197]:54058 "EHLO mail.z3ntu.xyz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726765AbfDLPGt (ORCPT ); Fri, 12 Apr 2019 11:06:49 -0400 Received: from localhost.localdomain (91-115-28-155.adsl.highway.telekom.at [91.115.28.155]) by mail.z3ntu.xyz (Postfix) with ESMTPSA id AFA3EC18E6; Fri, 12 Apr 2019 15:06:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=z3ntu.xyz; s=z3ntu; t=1555081606; bh=xilMGDYcI7Yf/yFk9bgc3wG2Ba5kxUmIJ6hiMqHOhSw=; h=From:To:Cc:Subject:Date; b=hbaPVrQF3R5hUVjKO67GbDG8+iVdL50IWPNvH6mfzCmTUyAus8gNJqtgTr7F84KUl gpznWTkH5teNjW9pJsmzev8Qm3SuxhL9tc4CIIC+FmFEZkPiRFPBIXFDlkcKlgkWdQ 9DBeBx6gmN0blypRia9G3YaRG4oGpNqinuUHYNx0= From: Luca Weiss Cc: Dmitry Torokhov , Rob Herring , Mark Rutland , Mauro Carvalho Chehab , Pascal PAILLET-LME , Coly Li , Lee Jones , Xiaotong Lu , Brian Masney , Rob Herring , Baolin Wang , David Brown , linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM SUPPORT), linux-input@vger.kernel.org (open list:INPUT (KEYBOARD, MOUSE, JOYSTICK , TOUCHSCREEN)...), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list), Luca Weiss Subject: [PATCH v3 1/3] dt-bindings: input: add GPIO controllable vibrator Date: Fri, 12 Apr 2019 17:06:23 +0200 Message-Id: <20190412150625.28384-1-luca@z3ntu.xyz> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Provide a simple driver for GPIO controllable vibrators. It will be used by the Fairphone 2. Signed-off-by: Luca Weiss --- .../bindings/input/gpio-vibrator.txt | 20 +++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/gpio-vibrator.txt diff --git a/Documentation/devicetree/bindings/input/gpio-vibrator.txt b/Documentation/devicetree/bindings/input/gpio-vibrator.txt new file mode 100644 index 000000000000..93e5a8e7622d --- /dev/null +++ b/Documentation/devicetree/bindings/input/gpio-vibrator.txt @@ -0,0 +1,20 @@ +* GPIO vibrator device tree bindings + +Registers a GPIO device as vibrator, where the vibration motor just has the +capability to turn on or off. If the device is connected to a pwm, you should +use the pwm-vibrator driver instead. + +Required properties: +- compatible: should contain "gpio-vibrator" +- enable-gpios: Should contain a GPIO handle + +Optional properties: +- vcc-supply: Phandle for the regulator supplying power + +Example from Fairphone 2: + +vibrator { + compatible = "gpio-vibrator"; + enable-gpios = <&msmgpio 86 GPIO_ACTIVE_HIGH>; + vcc-supply = <&pm8941_l18>; +}; From patchwork Fri Apr 12 15:06:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 10898531 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 66B3B1515 for ; Fri, 12 Apr 2019 15:07:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 540C528F37 for ; Fri, 12 Apr 2019 15:07:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4816128F55; Fri, 12 Apr 2019 15:07:08 +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=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable 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 0F79928F51 for ; Fri, 12 Apr 2019 15:07:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726917AbfDLPGv (ORCPT ); Fri, 12 Apr 2019 11:06:51 -0400 Received: from mail.z3ntu.xyz ([128.199.32.197]:54076 "EHLO mail.z3ntu.xyz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726768AbfDLPGv (ORCPT ); Fri, 12 Apr 2019 11:06:51 -0400 Received: from localhost.localdomain (91-115-28-155.adsl.highway.telekom.at [91.115.28.155]) by mail.z3ntu.xyz (Postfix) with ESMTPSA id 7B50BC1D25; Fri, 12 Apr 2019 15:06:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=z3ntu.xyz; s=z3ntu; t=1555081607; bh=mb/Pa72wyJ0PcrhnP2ZlEnW8lyfwGgDv5HFS5ca8JQA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=RVQqGRicT1sVDaI8EpudODyyA2UapDTmlolcqSo3Z+Ci4G/7EoBKC4100oTsf5C7N 2s5d2z90i2OI5r293Zn6HA/l40Np5l4sDvFdwRL2f33HJMIIr/MGjqsX4odcg/5Lou ace15y76GPhQFAm66inAECePBNYsmNPgaLci4VuQ= From: Luca Weiss Cc: Dmitry Torokhov , Rob Herring , Mark Rutland , Mauro Carvalho Chehab , Pascal PAILLET-LME , Coly Li , Lee Jones , Xiaotong Lu , Brian Masney , Rob Herring , Baolin Wang , David Brown , linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM SUPPORT), linux-input@vger.kernel.org (open list:INPUT (KEYBOARD, MOUSE, JOYSTICK , TOUCHSCREEN)...), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list), Luca Weiss Subject: [PATCH v3 2/3] Input: add a driver for GPIO controllable vibrators Date: Fri, 12 Apr 2019 17:06:24 +0200 Message-Id: <20190412150625.28384-2-luca@z3ntu.xyz> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190412150625.28384-1-luca@z3ntu.xyz> References: <20190412150625.28384-1-luca@z3ntu.xyz> MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Provide a simple driver for GPIO controllable vibrators. It will be used by the Fairphone 2. Signed-off-by: Luca Weiss --- drivers/input/misc/Kconfig | 12 ++ drivers/input/misc/Makefile | 1 + drivers/input/misc/gpio-vibra.c | 209 ++++++++++++++++++++++++++++++++ 3 files changed, 222 insertions(+) create mode 100644 drivers/input/misc/gpio-vibra.c diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index e15ed1bb8558..6dfe9e2fe5b1 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -290,6 +290,18 @@ config INPUT_GPIO_DECODER To compile this driver as a module, choose M here: the module will be called gpio_decoder. +config INPUT_GPIO_VIBRA + tristate "GPIO vibrator support" + depends on GPIOLIB || COMPILE_TEST + select INPUT_FF_MEMLESS + help + Say Y here to get support for GPIO based vibrator devices. + + If unsure, say N. + + To compile this driver as a module, choose M here: the module will be + called gpio-vibra. + config INPUT_IXP4XX_BEEPER tristate "IXP4XX Beeper support" depends on ARCH_IXP4XX diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index b936c5b1d4ac..f38ebbdb05e2 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -36,6 +36,7 @@ obj-$(CONFIG_INPUT_DRV2667_HAPTICS) += drv2667.o obj-$(CONFIG_INPUT_GP2A) += gp2ap002a00f.o obj-$(CONFIG_INPUT_GPIO_BEEPER) += gpio-beeper.o obj-$(CONFIG_INPUT_GPIO_DECODER) += gpio_decoder.o +obj-$(CONFIG_INPUT_GPIO_VIBRA) += gpio-vibra.o obj-$(CONFIG_INPUT_HISI_POWERKEY) += hisi_powerkey.o obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o obj-$(CONFIG_INPUT_IMS_PCU) += ims-pcu.o diff --git a/drivers/input/misc/gpio-vibra.c b/drivers/input/misc/gpio-vibra.c new file mode 100644 index 000000000000..3fd2dfd4f670 --- /dev/null +++ b/drivers/input/misc/gpio-vibra.c @@ -0,0 +1,209 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * GPIO vibrator driver + * + * Copyright (C) 2019 Luca Weiss + * + * Based on PWM vibrator driver: + * Copyright (C) 2017 Collabora Ltd. + * + * Based on previous work from: + * Copyright (C) 2012 Dmitry Torokhov + * + * Based on PWM beeper driver: + * Copyright (C) 2010, Lars-Peter Clausen + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct gpio_vibrator { + struct input_dev *input; + struct gpio_desc *gpio; + struct regulator *vcc; + + struct work_struct play_work; + bool running; + bool vcc_on; +}; + +static int gpio_vibrator_start(struct gpio_vibrator *vibrator) +{ + struct device *pdev = vibrator->input->dev.parent; + int err; + + if (!vibrator->vcc_on) { + err = regulator_enable(vibrator->vcc); + if (err) { + dev_err(pdev, "failed to enable regulator: %d", err); + return err; + } + vibrator->vcc_on = true; + } + + gpiod_set_value_cansleep(vibrator->gpio, 1); + + return 0; +} + +static void gpio_vibrator_stop(struct gpio_vibrator *vibrator) +{ + gpiod_set_value_cansleep(vibrator->gpio, 0); + + if (vibrator->vcc_on) { + regulator_disable(vibrator->vcc); + vibrator->vcc_on = false; + } +} + +static void gpio_vibrator_play_work(struct work_struct *work) +{ + struct gpio_vibrator *vibrator = + container_of(work, struct gpio_vibrator, play_work); + + if (vibrator->running) + gpio_vibrator_start(vibrator); + else + gpio_vibrator_stop(vibrator); +} + +static int gpio_vibrator_play_effect(struct input_dev *dev, void *data, + struct ff_effect *effect) +{ + struct gpio_vibrator *vibrator = input_get_drvdata(dev); + + int level = effect->u.rumble.strong_magnitude; + + if (!level) + level = effect->u.rumble.weak_magnitude; + + if (level) + vibrator->running = true; + else + vibrator->running = false; + + schedule_work(&vibrator->play_work); + + return 0; +} + +static void gpio_vibrator_close(struct input_dev *input) +{ + struct gpio_vibrator *vibrator = input_get_drvdata(input); + + cancel_work_sync(&vibrator->play_work); + gpio_vibrator_stop(vibrator); + vibrator->running = false; +} + +static int gpio_vibrator_probe(struct platform_device *pdev) +{ + struct gpio_vibrator *vibrator; + int err; + + vibrator = devm_kzalloc(&pdev->dev, sizeof(*vibrator), GFP_KERNEL); + if (!vibrator) + return -ENOMEM; + + vibrator->input = devm_input_allocate_device(&pdev->dev); + if (!vibrator->input) + return -ENOMEM; + + vibrator->vcc = devm_regulator_get(&pdev->dev, "vcc"); + err = PTR_ERR_OR_ZERO(vibrator->vcc); + if (err) { + if (err != -EPROBE_DEFER) + dev_err(&pdev->dev, "Failed to request regulator: %d", + err); + return err; + } + + vibrator->gpio = devm_gpiod_get(&pdev->dev, "enable", GPIOD_OUT_LOW); + err = PTR_ERR_OR_ZERO(vibrator->gpio); + if (err) { + if (err != -EPROBE_DEFER) + dev_err(&pdev->dev, "Failed to request main gpio: %d", + err); + return err; + } + + INIT_WORK(&vibrator->play_work, gpio_vibrator_play_work); + + vibrator->input->name = "gpio-vibrator"; + vibrator->input->id.bustype = BUS_HOST; + vibrator->input->close = gpio_vibrator_close; + + input_set_drvdata(vibrator->input, vibrator); + input_set_capability(vibrator->input, EV_FF, FF_RUMBLE); + + err = input_ff_create_memless(vibrator->input, NULL, + gpio_vibrator_play_effect); + if (err) { + dev_err(&pdev->dev, "Couldn't create FF dev: %d", err); + return err; + } + + err = input_register_device(vibrator->input); + if (err) { + dev_err(&pdev->dev, "Couldn't register input dev: %d", err); + return err; + } + + platform_set_drvdata(pdev, vibrator); + + return 0; +} + +static int __maybe_unused gpio_vibrator_suspend(struct device *dev) +{ + struct gpio_vibrator *vibrator = dev_get_drvdata(dev); + + cancel_work_sync(&vibrator->play_work); + if (vibrator->running) + gpio_vibrator_stop(vibrator); + + return 0; +} + +static int __maybe_unused gpio_vibrator_resume(struct device *dev) +{ + struct gpio_vibrator *vibrator = dev_get_drvdata(dev); + + if (vibrator->running) + gpio_vibrator_start(vibrator); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(gpio_vibrator_pm_ops, + gpio_vibrator_suspend, gpio_vibrator_resume); + +#ifdef CONFIG_OF +static const struct of_device_id gpio_vibra_dt_match_table[] = { + { .compatible = "gpio-vibrator" }, + {}, +}; +MODULE_DEVICE_TABLE(of, gpio_vibra_dt_match_table); +#endif + +static struct platform_driver gpio_vibrator_driver = { + .probe = gpio_vibrator_probe, + .driver = { + .name = "gpio-vibrator", + .pm = &gpio_vibrator_pm_ops, + .of_match_table = of_match_ptr(gpio_vibra_dt_match_table), + }, +}; +module_platform_driver(gpio_vibrator_driver); + +MODULE_AUTHOR("Luca Weiss "); +MODULE_DESCRIPTION("GPIO vibrator driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:gpio-vibrator"); From patchwork Fri Apr 12 15:06:25 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 10898523 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4C305139A for ; Fri, 12 Apr 2019 15:07:02 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2DC1528EBD for ; Fri, 12 Apr 2019 15:07:02 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 211FA28F55; Fri, 12 Apr 2019 15:07:02 +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=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 B3B0F28F42 for ; Fri, 12 Apr 2019 15:07:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726930AbfDLPGw (ORCPT ); Fri, 12 Apr 2019 11:06:52 -0400 Received: from mail.z3ntu.xyz ([128.199.32.197]:54082 "EHLO mail.z3ntu.xyz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726780AbfDLPGu (ORCPT ); Fri, 12 Apr 2019 11:06:50 -0400 Received: from localhost.localdomain (91-115-28-155.adsl.highway.telekom.at [91.115.28.155]) by mail.z3ntu.xyz (Postfix) with ESMTPSA id 592BBC1D51; Fri, 12 Apr 2019 15:06:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=z3ntu.xyz; s=z3ntu; t=1555081608; bh=QR00LtWv8/eoQ1jFUpVKmnz8LHOduZ1ATvV/Pnuo9is=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=MLVm0dH1W7yFEMcBOnjPbAUr/KXVssm+MSVoMdq+G8/jWHkYOZuoIcTxL1MsbIGke XCVaoF3uIw7cfTVg5QOJamvi95eu3giocjMsf1ZHDTJa7AV6P2p3osu4v6p08iBBYw awtLaM55xKbSY/0HzSI9AdzeCgTfj3Ll2LR7kAo0= From: Luca Weiss Cc: Dmitry Torokhov , Rob Herring , Mark Rutland , Mauro Carvalho Chehab , Pascal PAILLET-LME , Coly Li , Lee Jones , Xiaotong Lu , Brian Masney , Rob Herring , Baolin Wang , David Brown , linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM SUPPORT), linux-input@vger.kernel.org (open list:INPUT (KEYBOARD, MOUSE, JOYSTICK , TOUCHSCREEN)...), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list), Luca Weiss Subject: [PATCH v3 3/3] ARM: dts: msm8974-FP2: Add vibration motor Date: Fri, 12 Apr 2019 17:06:25 +0200 Message-Id: <20190412150625.28384-3-luca@z3ntu.xyz> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190412150625.28384-1-luca@z3ntu.xyz> References: <20190412150625.28384-1-luca@z3ntu.xyz> MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Luca Weiss --- arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts b/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts index 643c57f84818..bf402ae39226 100644 --- a/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts +++ b/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts @@ -50,6 +50,12 @@ }; }; + vibrator { + compatible = "gpio-vibrator"; + enable-gpios = <&msmgpio 86 GPIO_ACTIVE_HIGH>; + vcc-supply = <&pm8941_l18>; + }; + smd { rpm { rpm_requests { From patchwork Sun Apr 7 15:58:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 10888427 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 18595139A for ; Sun, 7 Apr 2019 16:05:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EC65D2848D for ; Sun, 7 Apr 2019 16:05:41 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E0634285A0; Sun, 7 Apr 2019 16:05:41 +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=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 BBCBB2848D for ; Sun, 7 Apr 2019 16:05:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726403AbfDGQFg (ORCPT ); Sun, 7 Apr 2019 12:05:36 -0400 Received: from mail.z3ntu.xyz ([128.199.32.197]:33480 "EHLO mail.z3ntu.xyz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726362AbfDGQFg (ORCPT ); Sun, 7 Apr 2019 12:05:36 -0400 Received: from localhost.localdomain (80-110-119-101.cgn.dynamic.surfer.at [80.110.119.101]) by mail.z3ntu.xyz (Postfix) with ESMTPSA id DE363C1588; Sun, 7 Apr 2019 15:58:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=z3ntu.xyz; s=z3ntu; t=1554652737; bh=IebeXy2FuMBusMkGiYMmOhOIgw3AZX/LiLxh3cqwBbM=; h=From:To:Cc:Subject:Date; b=mE9MAjX6Xx4c5SwRg6+Anzn0luAEYhKskccc+kaEAepw/HZONUUhqNSsDU5QWUPV1 JmL5uL0Wv/vLPIev7A6Tcb31Gdn59KtDSNLZnBmPkwd1IpUF2gzZhFyJkbhNiyEfZK i9Ee32SvVWSCFlUL+8gmjpIWCClv+zNSELHKq67M= From: Luca Weiss Cc: Dmitry Torokhov , Rob Herring , Mark Rutland , Mauro Carvalho Chehab , Pascal PAILLET-LME , Coly Li , Lee Jones , Xiaotong Lu , Brian Masney , Rob Herring , Baolin Wang , Andy Gross , David Brown , linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM SUPPORT), linux-input@vger.kernel.org (open list:INPUT (KEYBOARD, MOUSE, JOYSTICK , TOUCHSCREEN)...), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list), Luca Weiss Subject: [PATCH v2 1/3] dt-bindings: input: add GPIO controllable vibrator Date: Sun, 7 Apr 2019 17:58:40 +0200 Message-Id: <20190407155841.27354-1-luca@z3ntu.xyz> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Provide a simple driver for GPIO controllable vibrators. It will be used by the Fairphone 2. Signed-off-by: Luca Weiss --- Changes from v1: - Mark vcc-supply as optional .../bindings/input/gpio-vibrator.txt | 20 +++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/gpio-vibrator.txt diff --git a/Documentation/devicetree/bindings/input/gpio-vibrator.txt b/Documentation/devicetree/bindings/input/gpio-vibrator.txt new file mode 100644 index 000000000000..93e5a8e7622d --- /dev/null +++ b/Documentation/devicetree/bindings/input/gpio-vibrator.txt @@ -0,0 +1,20 @@ +* GPIO vibrator device tree bindings + +Registers a GPIO device as vibrator, where the vibration motor just has the +capability to turn on or off. If the device is connected to a pwm, you should +use the pwm-vibrator driver instead. + +Required properties: +- compatible: should contain "gpio-vibrator" +- enable-gpios: Should contain a GPIO handle + +Optional properties: +- vcc-supply: Phandle for the regulator supplying power + +Example from Fairphone 2: + +vibrator { + compatible = "gpio-vibrator"; + enable-gpios = <&msmgpio 86 GPIO_ACTIVE_HIGH>; + vcc-supply = <&pm8941_l18>; +}; From patchwork Sun Apr 7 15:58:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 10888435 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1861D18FD for ; Sun, 7 Apr 2019 16:05:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 07276285A0 for ; Sun, 7 Apr 2019 16:05:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E641D286EC; Sun, 7 Apr 2019 16:05:52 +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=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable 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 4299C28680 for ; Sun, 7 Apr 2019 16:05:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726536AbfDGQFi (ORCPT ); Sun, 7 Apr 2019 12:05:38 -0400 Received: from mail.z3ntu.xyz ([128.199.32.197]:33484 "EHLO mail.z3ntu.xyz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726372AbfDGQFi (ORCPT ); Sun, 7 Apr 2019 12:05:38 -0400 Received: from localhost.localdomain (80-110-119-101.cgn.dynamic.surfer.at [80.110.119.101]) by mail.z3ntu.xyz (Postfix) with ESMTPSA id A738BC1AD8; Sun, 7 Apr 2019 15:58:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=z3ntu.xyz; s=z3ntu; t=1554652738; bh=Wqoyvh0M23dOwwDgonD8XpbrgiueLpoyUyfMxC5V3mE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Sp3T2AXWhOUzNlK0rkcyhFZsqJB/6f2OmjV9q7kjoCaNRLikXB2n8H1bw1wShIPG6 H4o/N5ISHRf21I/wr2thOvXzFTFxe0jJzknydDgsHxmCd6ROGEJFNqtsjjJV2d5hqK HSgoQWnfwqzajn0z/EQ+pnJ/fGLsZ9SMnq0vLLL8= From: Luca Weiss Cc: Dmitry Torokhov , Rob Herring , Mark Rutland , Mauro Carvalho Chehab , Pascal PAILLET-LME , Coly Li , Lee Jones , Xiaotong Lu , Brian Masney , Rob Herring , Baolin Wang , Andy Gross , David Brown , linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM SUPPORT), linux-input@vger.kernel.org (open list:INPUT (KEYBOARD, MOUSE, JOYSTICK , TOUCHSCREEN)...), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list), Luca Weiss Subject: [PATCH v2 2/3] Input: add a driver for GPIO controllable vibrators Date: Sun, 7 Apr 2019 17:58:41 +0200 Message-Id: <20190407155841.27354-2-luca@z3ntu.xyz> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190407155841.27354-1-luca@z3ntu.xyz> References: <20190407155841.27354-1-luca@z3ntu.xyz> MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Provide a simple driver for GPIO controllable vibrators. It will be used by the Fairphone 2. Signed-off-by: Luca Weiss --- drivers/input/misc/Kconfig | 12 ++ drivers/input/misc/Makefile | 1 + drivers/input/misc/gpio-vibra.c | 214 ++++++++++++++++++++++++++++++++ 3 files changed, 227 insertions(+) create mode 100644 drivers/input/misc/gpio-vibra.c diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index e15ed1bb8558..6dfe9e2fe5b1 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -290,6 +290,18 @@ config INPUT_GPIO_DECODER To compile this driver as a module, choose M here: the module will be called gpio_decoder. +config INPUT_GPIO_VIBRA + tristate "GPIO vibrator support" + depends on GPIOLIB || COMPILE_TEST + select INPUT_FF_MEMLESS + help + Say Y here to get support for GPIO based vibrator devices. + + If unsure, say N. + + To compile this driver as a module, choose M here: the module will be + called gpio-vibra. + config INPUT_IXP4XX_BEEPER tristate "IXP4XX Beeper support" depends on ARCH_IXP4XX diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index b936c5b1d4ac..f38ebbdb05e2 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -36,6 +36,7 @@ obj-$(CONFIG_INPUT_DRV2667_HAPTICS) += drv2667.o obj-$(CONFIG_INPUT_GP2A) += gp2ap002a00f.o obj-$(CONFIG_INPUT_GPIO_BEEPER) += gpio-beeper.o obj-$(CONFIG_INPUT_GPIO_DECODER) += gpio_decoder.o +obj-$(CONFIG_INPUT_GPIO_VIBRA) += gpio-vibra.o obj-$(CONFIG_INPUT_HISI_POWERKEY) += hisi_powerkey.o obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o obj-$(CONFIG_INPUT_IMS_PCU) += ims-pcu.o diff --git a/drivers/input/misc/gpio-vibra.c b/drivers/input/misc/gpio-vibra.c new file mode 100644 index 000000000000..14f9534668c8 --- /dev/null +++ b/drivers/input/misc/gpio-vibra.c @@ -0,0 +1,214 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * GPIO vibrator driver + * + * Copyright (C) 2019 Luca Weiss + * + * Based on PWM vibrator driver: + * Copyright (C) 2017 Collabora Ltd. + * + * Based on previous work from: + * Copyright (C) 2012 Dmitry Torokhov + * + * Based on PWM beeper driver: + * Copyright (C) 2010, Lars-Peter Clausen + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +enum vibrator_state { + VIBRATOR_OFF, + VIBRATOR_ON +}; + +struct gpio_vibrator { + struct input_dev *input; + struct gpio_desc *gpio; + struct regulator *vcc; + + struct work_struct play_work; + enum vibrator_state state; + bool vcc_on; +}; + +static int gpio_vibrator_start(struct gpio_vibrator *vibrator) +{ + struct device *pdev = vibrator->input->dev.parent; + int err; + + if (!vibrator->vcc_on) { + err = regulator_enable(vibrator->vcc); + if (err) { + dev_err(pdev, "failed to enable regulator: %d", err); + return err; + } + vibrator->vcc_on = true; + } + + gpiod_set_value(vibrator->gpio, 1); + + return 0; +} + +static void gpio_vibrator_stop(struct gpio_vibrator *vibrator) +{ + gpiod_set_value(vibrator->gpio, 0); + + if (vibrator->vcc_on) { + regulator_disable(vibrator->vcc); + vibrator->vcc_on = false; + } +} + +static void gpio_vibrator_play_work(struct work_struct *work) +{ + struct gpio_vibrator *vibrator = container_of(work, + struct gpio_vibrator, play_work); + + if (vibrator->state == VIBRATOR_ON) + gpio_vibrator_start(vibrator); + else + gpio_vibrator_stop(vibrator); +} + +static int gpio_vibrator_play_effect(struct input_dev *dev, void *data, + struct ff_effect *effect) +{ + struct gpio_vibrator *vibrator = input_get_drvdata(dev); + + int level = effect->u.rumble.strong_magnitude; + + if (!level) + level = effect->u.rumble.weak_magnitude; + + if (level) + vibrator->state = VIBRATOR_ON; + else + vibrator->state = VIBRATOR_OFF; + + schedule_work(&vibrator->play_work); + + return 0; +} + +static void gpio_vibrator_close(struct input_dev *input) +{ + struct gpio_vibrator *vibrator = input_get_drvdata(input); + + cancel_work_sync(&vibrator->play_work); + gpio_vibrator_stop(vibrator); +} + +static int gpio_vibrator_probe(struct platform_device *pdev) +{ + struct gpio_vibrator *vibrator; + int err; + + vibrator = devm_kzalloc(&pdev->dev, sizeof(*vibrator), GFP_KERNEL); + if (!vibrator) + return -ENOMEM; + + vibrator->input = devm_input_allocate_device(&pdev->dev); + if (!vibrator->input) + return -ENOMEM; + + vibrator->vcc = devm_regulator_get(&pdev->dev, "vcc"); + err = PTR_ERR_OR_ZERO(vibrator->vcc); + if (err) { + if (err != -EPROBE_DEFER) + dev_err(&pdev->dev, "Failed to request regulator: %d", + err); + return err; + } + + vibrator->gpio = devm_gpiod_get(&pdev->dev, "enable", GPIOD_OUT_LOW); + err = PTR_ERR_OR_ZERO(vibrator->gpio); + if (err) { + if (err != -EPROBE_DEFER) + dev_err(&pdev->dev, "Failed to request main gpio: %d", + err); + return err; + } + + INIT_WORK(&vibrator->play_work, gpio_vibrator_play_work); + + vibrator->input->name = "gpio-vibrator"; + vibrator->input->id.bustype = BUS_HOST; + vibrator->input->dev.parent = &pdev->dev; + vibrator->input->close = gpio_vibrator_close; + + input_set_drvdata(vibrator->input, vibrator); + input_set_capability(vibrator->input, EV_FF, FF_RUMBLE); + + err = input_ff_create_memless(vibrator->input, NULL, + gpio_vibrator_play_effect); + if (err) { + dev_err(&pdev->dev, "Couldn't create FF dev: %d", err); + return err; + } + + err = input_register_device(vibrator->input); + if (err) { + dev_err(&pdev->dev, "Couldn't register input dev: %d", err); + return err; + } + + platform_set_drvdata(pdev, vibrator); + + return 0; +} + +static int __maybe_unused gpio_vibrator_suspend(struct device *dev) +{ + struct gpio_vibrator *vibrator = dev_get_drvdata(dev); + + cancel_work_sync(&vibrator->play_work); + if (vibrator->state == VIBRATOR_ON) + gpio_vibrator_stop(vibrator); + + return 0; +} + +static int __maybe_unused gpio_vibrator_resume(struct device *dev) +{ + struct gpio_vibrator *vibrator = dev_get_drvdata(dev); + + if (vibrator->state == VIBRATOR_ON) + gpio_vibrator_start(vibrator); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(gpio_vibrator_pm_ops, + gpio_vibrator_suspend, gpio_vibrator_resume); + +#ifdef CONFIG_OF +static const struct of_device_id gpio_vibra_dt_match_table[] = { + { .compatible = "gpio-vibrator" }, + {}, +}; +MODULE_DEVICE_TABLE(of, gpio_vibra_dt_match_table); +#endif + +static struct platform_driver gpio_vibrator_driver = { + .probe = gpio_vibrator_probe, + .driver = { + .name = "gpio-vibrator", + .pm = &gpio_vibrator_pm_ops, + .of_match_table = of_match_ptr(gpio_vibra_dt_match_table), + }, +}; +module_platform_driver(gpio_vibrator_driver); + +MODULE_AUTHOR("Luca Weiss "); +MODULE_DESCRIPTION("GPIO vibrator driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:gpio-vibrator"); From patchwork Sun Apr 7 15:58:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 10888429 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 53D481708 for ; Sun, 7 Apr 2019 16:05:52 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3DF96285A0 for ; Sun, 7 Apr 2019 16:05:52 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2FABC2848D; Sun, 7 Apr 2019 16:05:52 +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=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 CB7B72848D for ; Sun, 7 Apr 2019 16:05:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726466AbfDGQFg (ORCPT ); Sun, 7 Apr 2019 12:05:36 -0400 Received: from mail.z3ntu.xyz ([128.199.32.197]:33476 "EHLO mail.z3ntu.xyz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726329AbfDGQFg (ORCPT ); Sun, 7 Apr 2019 12:05:36 -0400 X-Greylist: delayed 396 seconds by postgrey-1.27 at vger.kernel.org; Sun, 07 Apr 2019 12:05:35 EDT Received: from localhost.localdomain (80-110-119-101.cgn.dynamic.surfer.at [80.110.119.101]) by mail.z3ntu.xyz (Postfix) with ESMTPSA id 7A267C1B9A; Sun, 7 Apr 2019 15:58:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=z3ntu.xyz; s=z3ntu; t=1554652739; bh=QR00LtWv8/eoQ1jFUpVKmnz8LHOduZ1ATvV/Pnuo9is=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=JAfASmFl53Bq6XoR06DpM4eAw3rOlr7L/yIS3+kmNGXjGaoy8QUqyiSHLi9oBg4oD 2zugPZzJIRQx4UARpTIKBu30vf+Fjzo2wjEsQqoPD53gcaAN6HN4DsXbyEQ9AYUJNy dX6sg8xlLio/hd/GFwZesBO35QdsrFPKPPkQBuGw= From: Luca Weiss Cc: Dmitry Torokhov , Rob Herring , Mark Rutland , Mauro Carvalho Chehab , Pascal PAILLET-LME , Coly Li , Lee Jones , Xiaotong Lu , Brian Masney , Rob Herring , Baolin Wang , Andy Gross , David Brown , linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM SUPPORT), linux-input@vger.kernel.org (open list:INPUT (KEYBOARD, MOUSE, JOYSTICK , TOUCHSCREEN)...), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list), Luca Weiss Subject: [PATCH v2 3/3] ARM: dts: msm8974-FP2: Add vibration motor Date: Sun, 7 Apr 2019 17:58:42 +0200 Message-Id: <20190407155841.27354-3-luca@z3ntu.xyz> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190407155841.27354-1-luca@z3ntu.xyz> References: <20190407155841.27354-1-luca@z3ntu.xyz> MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Luca Weiss --- arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts b/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts index 643c57f84818..bf402ae39226 100644 --- a/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts +++ b/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts @@ -50,6 +50,12 @@ }; }; + vibrator { + compatible = "gpio-vibrator"; + enable-gpios = <&msmgpio 86 GPIO_ACTIVE_HIGH>; + vcc-supply = <&pm8941_l18>; + }; + smd { rpm { rpm_requests { From patchwork Sat Mar 2 14:11:30 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 10836643 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9C99B922 for ; Sat, 2 Mar 2019 14:11:59 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 86C932AE5B for ; Sat, 2 Mar 2019 14:11:59 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 75E962AE65; Sat, 2 Mar 2019 14:11:59 +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=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 0952A2AE5B for ; Sat, 2 Mar 2019 14:11:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726065AbfCBOL4 (ORCPT ); Sat, 2 Mar 2019 09:11:56 -0500 Received: from mail.z3ntu.xyz ([128.199.32.197]:35486 "EHLO mail.z3ntu.xyz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726044AbfCBOLz (ORCPT ); Sat, 2 Mar 2019 09:11:55 -0500 Received: from localhost.localdomain (80-110-118-127.cgn.dynamic.surfer.at [80.110.118.127]) by mail.z3ntu.xyz (Postfix) with ESMTPSA id 6100FC5052; Sat, 2 Mar 2019 14:11:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=z3ntu.xyz; s=z3ntu; t=1551535913; bh=URv8Iesj4qMowVM6J4UgsodrZDtb5bdRZ0k0tc+W0OY=; h=From:To:Cc:Subject:Date; b=gmU34Yd0Ufw+4zwoM6Ey/0Pi5TIIvhkTPNbk4L+NuoI9rhwwLk0PK5qSxwhBStUya DLyht4o7V+03x76AJ/jWSDsP2gOKtP+9EhE4uvtuLzJKKFzeayjGMT/wQDLP6m+a6/ oSks5dTtSflCKN/ZKa4GzNxZAbRnVr8gn5uQlUAk= From: Luca Weiss Cc: Luca Weiss , Dmitry Torokhov , Rob Herring , Mark Rutland , linux-input@vger.kernel.org (open list:INPUT (KEYBOARD, MOUSE, JOYSTICK , TOUCHSCREEN)...), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list) Subject: [PATCH 1/2] dt-bindings: input: add GPIO controllable vibrator Date: Sat, 2 Mar 2019 15:11:30 +0100 Message-Id: <20190302141132.21160-1-luca@z3ntu.xyz> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Provide a simple driver for GPIO controllable vibrators. It will be used by the Fairphone 2. Signed-off-by: Luca Weiss --- .../devicetree/bindings/input/gpio-vibrator.txt | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/gpio-vibrator.txt diff --git a/Documentation/devicetree/bindings/input/gpio-vibrator.txt b/Documentation/devicetree/bindings/input/gpio-vibrator.txt new file mode 100644 index 000000000000..9e2e9acf497b --- /dev/null +++ b/Documentation/devicetree/bindings/input/gpio-vibrator.txt @@ -0,0 +1,16 @@ +* GPIO vibrator device tree bindings + +Registers a GPIO device as vibrator, where the vibration motor just has the capability to turn on or off. If the device is connected to a pwm, you should use the pwm-vibrator driver instead. + +Required properties: +- compatible: should contain "gpio-vibrator" +- enable-gpios: Should contain a GPIO handle +- vcc-supply: Phandle for the regulator supplying power + +Example from Fairphone 2: + +vibrator { + compatible = "gpio-vibrator"; + enable-gpios = <&msmgpio 86 GPIO_ACTIVE_HIGH>; + vcc-supply = <&pm8941_l18>; +}; From patchwork Sat Mar 2 14:11:31 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 10836645 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 07AB8922 for ; Sat, 2 Mar 2019 14:12:46 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E5F872AE5B for ; Sat, 2 Mar 2019 14:12:45 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D8F762AE65; Sat, 2 Mar 2019 14:12:45 +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=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 EAB312AE5B for ; Sat, 2 Mar 2019 14:12:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726592AbfCBOMo (ORCPT ); Sat, 2 Mar 2019 09:12:44 -0500 Received: from mail.z3ntu.xyz ([128.199.32.197]:35506 "EHLO mail.z3ntu.xyz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726410AbfCBOMo (ORCPT ); Sat, 2 Mar 2019 09:12:44 -0500 Received: from localhost.localdomain (80-110-118-127.cgn.dynamic.surfer.at [80.110.118.127]) by mail.z3ntu.xyz (Postfix) with ESMTPSA id C9045C5055; Sat, 2 Mar 2019 14:12:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=z3ntu.xyz; s=z3ntu; t=1551535960; bh=mAWSP378iKsdM8BS0CNiAIaNIRv6NccSHHdX83lvaN4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=kuZSFvLnqj8GcQrfEX1k6v0eKl729HyXEgRVCv0rYJXX2X1xuqoocRA7clWTt7v9F qsGS6qgnkKnbD/CBCYmlonbD4kCIqyY7jdFHFWAOpqzw3rglSoWnh6NnY4JAj2TrBw AUNBU42j94iQPA1/mVAO4LAy/rOh5LtelJh+Rafc= From: Luca Weiss Cc: Luca Weiss , Dmitry Torokhov , Xiaotong Lu , Coly Li , Stephen Boyd , Lucas Stach , Mauro Carvalho Chehab , Andrey Smirnov , Arnd Bergmann , Aaron Wu , Rob Herring , linux-kernel@vger.kernel.org (open list), linux-input@vger.kernel.org (open list:INPUT (KEYBOARD, MOUSE, JOYSTICK , TOUCHSCREEN)...) Subject: [PATCH 2/2] Input: add a driver for GPIO controllable vibrators Date: Sat, 2 Mar 2019 15:11:31 +0100 Message-Id: <20190302141132.21160-2-luca@z3ntu.xyz> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190302141132.21160-1-luca@z3ntu.xyz> References: <20190302141132.21160-1-luca@z3ntu.xyz> MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Provide a simple driver for GPIO controllable vibrators. It will be used by the Fairphone 2. Signed-off-by: Luca Weiss --- drivers/input/misc/Kconfig | 12 ++ drivers/input/misc/Makefile | 1 + drivers/input/misc/gpio-vibra.c | 214 ++++++++++++++++++++++++++++++++ 3 files changed, 227 insertions(+) create mode 100644 drivers/input/misc/gpio-vibra.c diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index ca59a2be9bc5..77480268fef2 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -280,6 +280,18 @@ config INPUT_GPIO_DECODER To compile this driver as a module, choose M here: the module will be called gpio_decoder. +config INPUT_GPIO_VIBRA + tristate "GPIO vibrator support" + depends on GPIOLIB || COMPILE_TEST + select INPUT_FF_MEMLESS + help + Say Y here to get support for GPIO based vibrator devices. + + If unsure, say N. + + To compile this driver as a module, choose M here: the module will be + called gpio-vibra. + config INPUT_IXP4XX_BEEPER tristate "IXP4XX Beeper support" depends on ARCH_IXP4XX diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index 9d0f9d1ff68f..79edbad44cf3 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -36,6 +36,7 @@ obj-$(CONFIG_INPUT_DRV2667_HAPTICS) += drv2667.o obj-$(CONFIG_INPUT_GP2A) += gp2ap002a00f.o obj-$(CONFIG_INPUT_GPIO_BEEPER) += gpio-beeper.o obj-$(CONFIG_INPUT_GPIO_DECODER) += gpio_decoder.o +obj-$(CONFIG_INPUT_GPIO_VIBRA) += gpio-vibra.o obj-$(CONFIG_INPUT_HISI_POWERKEY) += hisi_powerkey.o obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o obj-$(CONFIG_INPUT_IMS_PCU) += ims-pcu.o diff --git a/drivers/input/misc/gpio-vibra.c b/drivers/input/misc/gpio-vibra.c new file mode 100644 index 000000000000..14f9534668c8 --- /dev/null +++ b/drivers/input/misc/gpio-vibra.c @@ -0,0 +1,214 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * GPIO vibrator driver + * + * Copyright (C) 2019 Luca Weiss + * + * Based on PWM vibrator driver: + * Copyright (C) 2017 Collabora Ltd. + * + * Based on previous work from: + * Copyright (C) 2012 Dmitry Torokhov + * + * Based on PWM beeper driver: + * Copyright (C) 2010, Lars-Peter Clausen + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +enum vibrator_state { + VIBRATOR_OFF, + VIBRATOR_ON +}; + +struct gpio_vibrator { + struct input_dev *input; + struct gpio_desc *gpio; + struct regulator *vcc; + + struct work_struct play_work; + enum vibrator_state state; + bool vcc_on; +}; + +static int gpio_vibrator_start(struct gpio_vibrator *vibrator) +{ + struct device *pdev = vibrator->input->dev.parent; + int err; + + if (!vibrator->vcc_on) { + err = regulator_enable(vibrator->vcc); + if (err) { + dev_err(pdev, "failed to enable regulator: %d", err); + return err; + } + vibrator->vcc_on = true; + } + + gpiod_set_value(vibrator->gpio, 1); + + return 0; +} + +static void gpio_vibrator_stop(struct gpio_vibrator *vibrator) +{ + gpiod_set_value(vibrator->gpio, 0); + + if (vibrator->vcc_on) { + regulator_disable(vibrator->vcc); + vibrator->vcc_on = false; + } +} + +static void gpio_vibrator_play_work(struct work_struct *work) +{ + struct gpio_vibrator *vibrator = container_of(work, + struct gpio_vibrator, play_work); + + if (vibrator->state == VIBRATOR_ON) + gpio_vibrator_start(vibrator); + else + gpio_vibrator_stop(vibrator); +} + +static int gpio_vibrator_play_effect(struct input_dev *dev, void *data, + struct ff_effect *effect) +{ + struct gpio_vibrator *vibrator = input_get_drvdata(dev); + + int level = effect->u.rumble.strong_magnitude; + + if (!level) + level = effect->u.rumble.weak_magnitude; + + if (level) + vibrator->state = VIBRATOR_ON; + else + vibrator->state = VIBRATOR_OFF; + + schedule_work(&vibrator->play_work); + + return 0; +} + +static void gpio_vibrator_close(struct input_dev *input) +{ + struct gpio_vibrator *vibrator = input_get_drvdata(input); + + cancel_work_sync(&vibrator->play_work); + gpio_vibrator_stop(vibrator); +} + +static int gpio_vibrator_probe(struct platform_device *pdev) +{ + struct gpio_vibrator *vibrator; + int err; + + vibrator = devm_kzalloc(&pdev->dev, sizeof(*vibrator), GFP_KERNEL); + if (!vibrator) + return -ENOMEM; + + vibrator->input = devm_input_allocate_device(&pdev->dev); + if (!vibrator->input) + return -ENOMEM; + + vibrator->vcc = devm_regulator_get(&pdev->dev, "vcc"); + err = PTR_ERR_OR_ZERO(vibrator->vcc); + if (err) { + if (err != -EPROBE_DEFER) + dev_err(&pdev->dev, "Failed to request regulator: %d", + err); + return err; + } + + vibrator->gpio = devm_gpiod_get(&pdev->dev, "enable", GPIOD_OUT_LOW); + err = PTR_ERR_OR_ZERO(vibrator->gpio); + if (err) { + if (err != -EPROBE_DEFER) + dev_err(&pdev->dev, "Failed to request main gpio: %d", + err); + return err; + } + + INIT_WORK(&vibrator->play_work, gpio_vibrator_play_work); + + vibrator->input->name = "gpio-vibrator"; + vibrator->input->id.bustype = BUS_HOST; + vibrator->input->dev.parent = &pdev->dev; + vibrator->input->close = gpio_vibrator_close; + + input_set_drvdata(vibrator->input, vibrator); + input_set_capability(vibrator->input, EV_FF, FF_RUMBLE); + + err = input_ff_create_memless(vibrator->input, NULL, + gpio_vibrator_play_effect); + if (err) { + dev_err(&pdev->dev, "Couldn't create FF dev: %d", err); + return err; + } + + err = input_register_device(vibrator->input); + if (err) { + dev_err(&pdev->dev, "Couldn't register input dev: %d", err); + return err; + } + + platform_set_drvdata(pdev, vibrator); + + return 0; +} + +static int __maybe_unused gpio_vibrator_suspend(struct device *dev) +{ + struct gpio_vibrator *vibrator = dev_get_drvdata(dev); + + cancel_work_sync(&vibrator->play_work); + if (vibrator->state == VIBRATOR_ON) + gpio_vibrator_stop(vibrator); + + return 0; +} + +static int __maybe_unused gpio_vibrator_resume(struct device *dev) +{ + struct gpio_vibrator *vibrator = dev_get_drvdata(dev); + + if (vibrator->state == VIBRATOR_ON) + gpio_vibrator_start(vibrator); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(gpio_vibrator_pm_ops, + gpio_vibrator_suspend, gpio_vibrator_resume); + +#ifdef CONFIG_OF +static const struct of_device_id gpio_vibra_dt_match_table[] = { + { .compatible = "gpio-vibrator" }, + {}, +}; +MODULE_DEVICE_TABLE(of, gpio_vibra_dt_match_table); +#endif + +static struct platform_driver gpio_vibrator_driver = { + .probe = gpio_vibrator_probe, + .driver = { + .name = "gpio-vibrator", + .pm = &gpio_vibrator_pm_ops, + .of_match_table = of_match_ptr(gpio_vibra_dt_match_table), + }, +}; +module_platform_driver(gpio_vibrator_driver); + +MODULE_AUTHOR("Luca Weiss "); +MODULE_DESCRIPTION("GPIO vibrator driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:gpio-vibrator"); From patchwork Mon Feb 25 16:32:54 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 10828915 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 180531575 for ; Mon, 25 Feb 2019 16:46:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 075EC29014 for ; Mon, 25 Feb 2019 16:46:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EFD292B811; Mon, 25 Feb 2019 16:46:30 +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=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 2CB3929014 for ; Mon, 25 Feb 2019 16:46:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728428AbfBYQq3 (ORCPT ); Mon, 25 Feb 2019 11:46:29 -0500 Received: from mail.z3ntu.xyz ([128.199.32.197]:38376 "EHLO mail.z3ntu.xyz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728076AbfBYQq3 (ORCPT ); Mon, 25 Feb 2019 11:46:29 -0500 X-Greylist: delayed 544 seconds by postgrey-1.27 at vger.kernel.org; Mon, 25 Feb 2019 11:46:27 EST Received: from localhost.localdomain (80-110-115-173.cgn.dynamic.surfer.at [80.110.115.173]) by mail.z3ntu.xyz (Postfix) with ESMTPSA id F33BEC25CF; Mon, 25 Feb 2019 16:37:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=z3ntu.xyz; s=z3ntu; t=1551112642; bh=3GI3QJeJqWNSfxeDPIdqUn2vofd5dovfcCSpWwNcbDs=; h=From:To:Cc:Subject:Date; b=FMXSuAGGQ75lMcrnP96FxweU5/I55s9UuNFXWWQz/8EppzNGeAaxapzUYGQXg7ekL GcesDB/7c3i7wgTquep6o0hGISmpJbmjmUu1i+SUf6+My7k4uhlg/z7DtxOl/Uc0t/ d0Tg1V7Wccg24ybn/ZdlRhiZD6nxKYR/LTpkYo5U= From: Luca Weiss To: linux-input@vger.kernel.org Cc: Sebastian Reichel , Luca Weiss Subject: [RFC PATCH] Input: add a driver for GPIO controllable vibrators Date: Mon, 25 Feb 2019 17:32:54 +0100 Message-Id: <20190225163252.25176-1-luca@z3ntu.xyz> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Provide a simple driver for GPIO controllable vibrators. It will be used by the Fairphone 2. Signed-off-by: Luca Weiss --- Devicetree binding documentation is not written yet, but the node for the Fairphone 2 is: vibrator { compatible = "gpio-vibrator"; enable-gpios = <&msmgpio 86 GPIO_ACTIVE_HIGH>; vcc-supply = <&pm8941_l18>; }; drivers/input/misc/Kconfig | 12 ++ drivers/input/misc/Makefile | 1 + drivers/input/misc/gpio-vibra.c | 218 ++++++++++++++++++++++++++++++++ 3 files changed, 231 insertions(+) create mode 100644 drivers/input/misc/gpio-vibra.c diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index ca59a2be9bc5..77480268fef2 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -280,6 +280,18 @@ config INPUT_GPIO_DECODER To compile this driver as a module, choose M here: the module will be called gpio_decoder. +config INPUT_GPIO_VIBRA + tristate "GPIO vibrator support" + depends on GPIOLIB || COMPILE_TEST + select INPUT_FF_MEMLESS + help + Say Y here to get support for GPIO based vibrator devices. + + If unsure, say N. + + To compile this driver as a module, choose M here: the module will be + called gpio-vibra. + config INPUT_IXP4XX_BEEPER tristate "IXP4XX Beeper support" depends on ARCH_IXP4XX diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index 9d0f9d1ff68f..79edbad44cf3 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -36,6 +36,7 @@ obj-$(CONFIG_INPUT_DRV2667_HAPTICS) += drv2667.o obj-$(CONFIG_INPUT_GP2A) += gp2ap002a00f.o obj-$(CONFIG_INPUT_GPIO_BEEPER) += gpio-beeper.o obj-$(CONFIG_INPUT_GPIO_DECODER) += gpio_decoder.o +obj-$(CONFIG_INPUT_GPIO_VIBRA) += gpio-vibra.o obj-$(CONFIG_INPUT_HISI_POWERKEY) += hisi_powerkey.o obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o obj-$(CONFIG_INPUT_IMS_PCU) += ims-pcu.o diff --git a/drivers/input/misc/gpio-vibra.c b/drivers/input/misc/gpio-vibra.c new file mode 100644 index 000000000000..dad18d3f9697 --- /dev/null +++ b/drivers/input/misc/gpio-vibra.c @@ -0,0 +1,218 @@ +/* + * GPIO vibrator driver + * + * Copyright (C) 2019 Luca Weiss + * + * Based on PWM vibrator driver: + * Copyright (C) 2017 Collabora Ltd. + * + * Based on previous work from: + * Copyright (C) 2012 Dmitry Torokhov + * + * Based on PWM beeper driver: + * Copyright (C) 2010, Lars-Peter Clausen + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +enum vibrator_state { + VIBRATOR_OFF, + VIBRATOR_ON +}; + +struct gpio_vibrator { + struct input_dev *input; + struct gpio_desc *gpio; + struct regulator *vcc; + + struct work_struct play_work; + enum vibrator_state state; + bool vcc_on; +}; + +static int gpio_vibrator_start(struct gpio_vibrator *vibrator) +{ + struct device *pdev = vibrator->input->dev.parent; + int err; + + if (!vibrator->vcc_on) { + err = regulator_enable(vibrator->vcc); + if (err) { + dev_err(pdev, "failed to enable regulator: %d", err); + return err; + } + vibrator->vcc_on = true; + } + + gpiod_set_value(vibrator->gpio, 1); + + return 0; +} + +static void gpio_vibrator_stop(struct gpio_vibrator *vibrator) +{ + gpiod_set_value(vibrator->gpio, 0); + + if (vibrator->vcc_on) { + regulator_disable(vibrator->vcc); + vibrator->vcc_on = false; + } +} + +static void gpio_vibrator_play_work(struct work_struct *work) +{ + struct gpio_vibrator *vibrator = container_of(work, + struct gpio_vibrator, play_work); + + if (vibrator->state == VIBRATOR_ON) + gpio_vibrator_start(vibrator); + else + gpio_vibrator_stop(vibrator); +} + +static int gpio_vibrator_play_effect(struct input_dev *dev, void *data, + struct ff_effect *effect) +{ + struct gpio_vibrator *vibrator = input_get_drvdata(dev); + + int level = effect->u.rumble.strong_magnitude; + if (!level) + level = effect->u.rumble.weak_magnitude; + + if (level) { + vibrator->state = VIBRATOR_ON; + } else { + vibrator->state = VIBRATOR_OFF; + } + + schedule_work(&vibrator->play_work); + + return 0; +} + +static void gpio_vibrator_close(struct input_dev *input) +{ + struct gpio_vibrator *vibrator = input_get_drvdata(input); + + cancel_work_sync(&vibrator->play_work); + gpio_vibrator_stop(vibrator); +} + +static int gpio_vibrator_probe(struct platform_device *pdev) +{ + struct gpio_vibrator *vibrator; + int err; + + vibrator = devm_kzalloc(&pdev->dev, sizeof(*vibrator), GFP_KERNEL); + if (!vibrator) + return -ENOMEM; + + vibrator->input = devm_input_allocate_device(&pdev->dev); + if (!vibrator->input) + return -ENOMEM; + + vibrator->vcc = devm_regulator_get(&pdev->dev, "vcc"); + err = PTR_ERR_OR_ZERO(vibrator->vcc); + if (err) { + if (err != -EPROBE_DEFER) + dev_err(&pdev->dev, "Failed to request regulator: %d", + err); + return err; + } + + vibrator->gpio = devm_gpiod_get(&pdev->dev, "enable", GPIOD_OUT_LOW); + err = PTR_ERR_OR_ZERO(vibrator->gpio); + if (err) { + if (err != -EPROBE_DEFER) + dev_err(&pdev->dev, "Failed to request main gpio: %d", + err); + return err; + } + + INIT_WORK(&vibrator->play_work, gpio_vibrator_play_work); + + vibrator->input->name = "gpio-vibrator"; + vibrator->input->id.bustype = BUS_HOST; + vibrator->input->dev.parent = &pdev->dev; + vibrator->input->close = gpio_vibrator_close; + + input_set_drvdata(vibrator->input, vibrator); + input_set_capability(vibrator->input, EV_FF, FF_RUMBLE); + + err = input_ff_create_memless(vibrator->input, NULL, + gpio_vibrator_play_effect); + if (err) { + dev_err(&pdev->dev, "Couldn't create FF dev: %d", err); + return err; + } + + err = input_register_device(vibrator->input); + if (err) { + dev_err(&pdev->dev, "Couldn't register input dev: %d", err); + return err; + } + + platform_set_drvdata(pdev, vibrator); + + return 0; +} + +static int __maybe_unused gpio_vibrator_suspend(struct device *dev) +{ + struct gpio_vibrator *vibrator = dev_get_drvdata(dev); + + cancel_work_sync(&vibrator->play_work); + if (vibrator->state == VIBRATOR_ON) + gpio_vibrator_stop(vibrator); + + return 0; +} + +static int __maybe_unused gpio_vibrator_resume(struct device *dev) +{ + struct gpio_vibrator *vibrator = dev_get_drvdata(dev); + + if (vibrator->state == VIBRATOR_ON) + gpio_vibrator_start(vibrator); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(gpio_vibrator_pm_ops, + gpio_vibrator_suspend, gpio_vibrator_resume); + +#ifdef CONFIG_OF +static const struct of_device_id gpio_vibra_dt_match_table[] = { + { .compatible = "gpio-vibrator" }, + {}, +}; +MODULE_DEVICE_TABLE(of, gpio_vibra_dt_match_table); +#endif + +static struct platform_driver gpio_vibrator_driver = { + .probe = gpio_vibrator_probe, + .driver = { + .name = "gpio-vibrator", + .pm = &gpio_vibrator_pm_ops, + .of_match_table = of_match_ptr(gpio_vibra_dt_match_table), + }, +}; +module_platform_driver(gpio_vibrator_driver); + +MODULE_AUTHOR("Luca Weiss "); +MODULE_DESCRIPTION("GPIO vibrator driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:gpio-vibrator");