From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753770Ab2AQNdv (ORCPT ); Tue, 17 Jan 2012 08:33:51 -0500 Received: from ch1ehsobe002.messaging.microsoft.com ([216.32.181.182]:40310 "EHLO ch1outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753389Ab2AQNdu (ORCPT ); Tue, 17 Jan 2012 08:33:50 -0500 X-SpamScore: 3 X-BigFish: VPS3(zzc8kzz1202hzz8275bhz2dhc1ahc1bh2a8h668h839h93fh) X-Forefront-Antispam-Report: CIP:59.163.77.45;KIP:(null);UIP:(null);IPV:NLI;H:Outbound.kpitcummins.com;RD:59.163.77.45.static.vsnl.net.in;EFVD:NLI X-FB-SS: 13, Subject: [PATCH 07/07] ONKEY: OnKey module for DA9052/53 PMIC v1 From: Ashish Jangam To: Dmitry Torokhov CC: "linux-kernel@vger.kernel.org" , Dajun Chen Content-Type: text/plain; charset="UTF-8" Date: Tue, 17 Jan 2012 18:59:11 +0530 Message-ID: <1326806951.3542.342.camel@dhruva> MIME-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit X-Originating-IP: [10.10.38.47] X-OriginatorOrg: kpitcummins.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On-key Driver for Dialog Semiconductor DA9052 PMICs. Signed-off-by: David Dajun Chen Signed-off-by: Ashish Jangam --- drivers/input/misc/Kconfig | 10 ++ drivers/input/misc/Makefile | 1 + drivers/input/misc/da9052_onkey.c | 180 +++++++++++++++++++++++++++++++++++++ 3 files changed, 191 insertions(+), 0 deletions(-) create mode 100644 drivers/input/misc/da9052_onkey.c diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 7b46781..c123fbe 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -455,6 +455,16 @@ config INPUT_RB532_BUTTON To compile this driver as a module, choose M here: the module will be called rb532_button. +config INPUT_DA9052_ONKEY + tristate "Dialog DA9052 Onkey" + depends on PMIC_DA9052 + help + Support the ONKEY of Dialog DA9052 PMICs as an input device + reporting power button status. + + To compile this driver as a module, choose M here: the + module will be called da9052_onkey. + config INPUT_DM355EVM tristate "TI DaVinci DM355 EVM Keypad and IR Remote" depends on MFD_DM355EVM_MSP diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index 46671a8..a6d8de0 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -21,6 +21,7 @@ obj-$(CONFIG_INPUT_CM109) += cm109.o obj-$(CONFIG_INPUT_CMA3000) += cma3000_d0x.o obj-$(CONFIG_INPUT_CMA3000_I2C) += cma3000_d0x_i2c.o obj-$(CONFIG_INPUT_COBALT_BTNS) += cobalt_btns.o +obj-$(CONFIG_INPUT_DA9052_ONKEY) += da9052_onkey.o obj-$(CONFIG_INPUT_DM355EVM) += dm355evm_keys.o obj-$(CONFIG_INPUT_GP2A) += gp2ap002a00f.o obj-$(CONFIG_INPUT_GPIO_TILT_POLLED) += gpio_tilt_polled.o diff --git a/drivers/input/misc/da9052_onkey.c b/drivers/input/misc/da9052_onkey.c new file mode 100644 index 0000000..9646c1e --- /dev/null +++ b/drivers/input/misc/da9052_onkey.c @@ -0,0 +1,180 @@ +/* + * ON pin driver for Dialog DA9052 PMICs + * + * Copyright(c) 2011 Dialog Semiconductor Ltd. + * + * Author: David Dajun Chen + * + * 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 + +struct da9052_onkey { + struct da9052 *da9052; + struct input_dev *input; + struct delayed_work work; + int irq; +}; + +static void da9052_onkey_query(struct da9052_onkey *onkey) +{ + int ret; + + ret = da9052_reg_read(onkey->da9052, DA9052_EVENT_B_REG); + if (ret < 0) { + dev_err(onkey->da9052->dev, + "da9052_onkey_report_event da9052_reg_read error %d\n", + ret); + ret = 1; + } else { + ret = ret & DA9052_EVENTB_ENONKEY; + input_report_key(onkey->input, KEY_POWER, ret); + input_sync(onkey->input); + } + + if (ret) + schedule_delayed_work(&onkey->work, msecs_to_jiffies(50)); +} + +static void da9052_onkey_work(struct work_struct *work) +{ + struct da9052_onkey *onkey = container_of(work, struct da9052_onkey, + work.work); + + da9052_onkey_query(onkey); +} + +static irqreturn_t da9052_onkey_irq(int irq, void *data) +{ + struct da9052_onkey *onkey = data; + + da9052_onkey_work(&onkey->work.work); + + return IRQ_HANDLED; +} + +static int __devinit da9052_onkey_probe(struct platform_device *pdev) +{ + struct da9052_onkey *onkey; + int error; + + onkey = kzalloc(sizeof(*onkey), GFP_KERNEL); + if (!onkey) { + dev_err(&pdev->dev, "Failed to allocate memory\n"); + return -ENOMEM; + } + + onkey->input = input_allocate_device(); + if (!onkey->input) { + error = -ENOMEM; + dev_err(&pdev->dev, "Failed to allocate input device, %d\n", + error); + goto err_mem; + } + + onkey->da9052 = dev_get_drvdata(pdev->dev.parent); + if (!onkey->da9052) { + error = -ENOMEM; + dev_err(&pdev->dev, "Failed to get the driver's data, %d\n", + error); + goto err_input; + } + + onkey->irq = platform_get_irq_byname(pdev, "ONKEY"); + if (onkey->irq < 0) { + error = -ENXIO; + dev_err(&pdev->dev, + "Failed to get an IRQ for input device, %d\n", + onkey->irq); + goto err_input; + } + + onkey->input->evbit[0] = BIT_MASK(EV_KEY); + onkey->input->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER); + onkey->input->name = "da9052-onkey"; + onkey->input->phys = "da9052-onkey/input0"; + onkey->input->dev.parent = &pdev->dev; + + INIT_DELAYED_WORK(&onkey->work, da9052_onkey_work); + + error = request_threaded_irq(onkey->da9052->irq_base + onkey->irq, NULL, + da9052_onkey_irq, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + "ONKEY", onkey); + if (error < 0) { + dev_err(onkey->da9052->dev, + "Failed to register ONKEY IRQ %d, error = %d\n", + onkey->da9052->irq_base + onkey->irq, error); + goto err_req_irq; + } + + error = input_register_device(onkey->input); + if (error) { + dev_err(&pdev->dev, "Unable to register input device, %d\n", + error); + goto err_irq; + } + + platform_set_drvdata(pdev, onkey); + + return 0; + +err_irq: + free_irq(onkey->da9052->irq_base + onkey->irq, onkey); +err_req_irq: + cancel_delayed_work_sync(&onkey->work); +err_input: + input_free_device(onkey->input); +err_mem: + kfree(onkey); + return error; +} + +static int __devexit da9052_onkey_remove(struct platform_device *pdev) +{ + struct da9052_onkey *onkey = platform_get_drvdata(pdev); + + free_irq(onkey->da9052->irq_base + onkey->irq, onkey); + cancel_delayed_work_sync(&onkey->work); + input_unregister_device(onkey->input); + kfree(onkey); + + return 0; +} + +static struct platform_driver da9052_onkey_driver = { + .probe = da9052_onkey_probe, + .remove = __devexit_p(da9052_onkey_remove), + .driver = { + .name = "da9052-onkey", + .owner = THIS_MODULE, + }, +}; + +static int __init da9052_onkey_init(void) +{ + return platform_driver_register(&da9052_onkey_driver); +} +module_init(da9052_onkey_init); + +static void __exit da9052_onkey_exit(void) +{ + platform_driver_unregister(&da9052_onkey_driver); +} +module_exit(da9052_onkey_exit); + +MODULE_AUTHOR("David Dajun Chen "); +MODULE_DESCRIPTION("Onkey driver for DA9052"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:da9052-onkey");