Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755854Ab1DFLyl (ORCPT ); Wed, 6 Apr 2011 07:54:41 -0400 Received: from ch1outboundpool.messaging.microsoft.com ([216.32.181.184]:35718 "EHLO ch1outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755827Ab1DFLyj (ORCPT ); Wed, 6 Apr 2011 07:54:39 -0400 X-SpamScore: -2 X-BigFish: VPS-2(zzbb2cK936eKc8kzz1202hzz8275bh84d07hz32i2a8h668h839h61h) X-Spam-TCS-SCL: 0:0 X-Forefront-Antispam-Report: KIP:(null);UIP:(null);IPVD:NLI;H:Kcinpunhjhc01.kpit.com;RD:Kcinpunhjhc01.kpit.com;EFVD:NLI From: Ashish Jangam To: Dmitry Torokhov CC: "linux-kernel@vger.kernel.org" , Dajun Chen Date: Wed, 6 Apr 2011 17:24:23 +0530 Subject: [PATCHv1 11/11] INPUT/MISC/ONKEY: OnKey module of DA9052 PMICs driver Thread-Topic: [PATCHv1 11/11] INPUT/MISC/ONKEY: OnKey module of DA9052 PMICs driver Thread-Index: Acv0UV7q9ud7tnFWThOiZes450nrPQ== Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 X-OriginatorOrg: kpitcummins.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id p36Bt9Ad000530 Content-Length: 6107 Lines: 209 Hi Dmitry, ONKEY Driver for Dialog Semiconductor DA9052 PMICs. Changes made since last submission: . read and write operation moved to MFD . added workqueue to notify onkey events Some additional information of this patch: . This patch is thoroughly tested with the Samsung 6410 board using I2C connectivity. . Workqueue is added to toggle the KEY_POWER event. Linux Kernel Version: 2.6.37 Signed-off-by: D. Chen --- diff -Naur orig_linux-2.6.37/drivers/input/misc/da9052_onkey.c linux-2.6.37/drivers/input/misc/da9052_onkey.c --- orig_linux-2.6.37/drivers/input/misc/da9052_onkey.c 1970-01-01 05:00:00.000000000 +0500 +++ linux-2.6.37/drivers/input/misc/da9052_onkey.c 2011-03-31 19:28:59.000000000 +0500 @@ -0,0 +1,150 @@ +/* + * da9052_onkey.c -- ON pin driver for Dialog DA9052 PMICs + * + * Copyright(c) 2009 Dialog Semiconductor Ltd. + * + * Author: 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_work(struct work_struct *work) +{ + unsigned int ret; + struct da9052_onkey *onkey; + onkey = container_of(work, struct da9052_onkey, work.work); + + 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_E_nONKEY; + input_report_key(onkey->input, KEY_POWER, ret); + input_sync(onkey->input); + } + + if (ret) + schedule_delayed_work(&onkey->work, 10); + +} + + +static irqreturn_t da9052_onkey_irq(int irq, void *data) +{ + struct da9052_onkey *onkey = (struct da9052_onkey *) data; + + schedule_delayed_work(&onkey->work, 0); + + return IRQ_HANDLED; +} + +static int __devinit da9052_onkey_probe(struct platform_device *pdev) +{ + struct da9052_onkey *onkey; + unsigned int ret; + + 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) { + ret = -ENOMEM; + dev_err(&pdev->dev, "Failed to allocate input device, %d\n", ret); + goto err_mem; + } + onkey->da9052 = dev_get_drvdata(pdev->dev.parent); + onkey->irq = platform_get_irq_byname(pdev, "ONKEY"); + + 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; + + ret = input_register_device(onkey->input); + if (ret) { + dev_err(&pdev->dev, "Unable to register input\ + device, %d\n", ret); + goto err_input; + } + + INIT_DELAYED_WORK(&onkey->work, da9052_onkey_work); + + ret = da9052_request_irq(onkey->da9052, onkey->irq, + da9052_onkey_irq, "ONKEY", onkey); + if (ret < 0) + goto err_input; + + platform_set_drvdata(pdev, onkey); + + return 0; + +err_input: + input_unregister_device(onkey->input); + cancel_delayed_work_sync(&onkey->work); +err_mem: + kfree(onkey); + return ret; +} + +static int __devexit da9052_onkey_remove(struct platform_device *pdev) +{ + struct da9052_onkey *onkey = pdev->dev.platform_data; + + cancel_delayed_work_sync(&onkey->work); + input_unregister_device(onkey->input); + da9052_free_irq(onkey->da9052, onkey->irq, NULL); + kfree(onkey); + + return 0; +} + +static struct platform_driver da9052_onkey_driver = { + .driver.name = "da9052-onkey", + .driver.owner = THIS_MODULE, + .probe = da9052_onkey_probe, + .remove = __devexit_p(da9052_onkey_remove), +}; + +static int __init da9052_onkey_init(void) +{ + return platform_driver_register(&da9052_onkey_driver); +} + +static void __exit da9052_onkey_exit(void) +{ + platform_driver_unregister(&da9052_onkey_driver); +} + +module_init(da9052_onkey_init); +module_exit(da9052_onkey_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("David Dajun Chen "); +MODULE_DESCRIPTION("Onkey driver for DA9052"); +MODULE_ALIAS("platform:da9052-onkey"); diff -Naur orig_linux-2.6.37/drivers/input/misc/Kconfig linux-2.6.37/drivers/input/misc/Kconfig --- orig_linux-2.6.37/drivers/input/misc/Kconfig 2011-01-05 05:50:19.000000000 +0500 +++ linux-2.6.37/drivers/input/misc/Kconfig 2011-03-31 19:29:14.000000000 +0500 @@ -32,6 +32,16 @@ To compile this driver as a module, choose M here: the module will be called ab8500-ponkey. +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_AD714X tristate "Analog Devices AD714x Capacitance Touch Sensor" help diff -Naur orig_linux-2.6.37/drivers/input/misc/Makefile linux-2.6.37/drivers/input/misc/Makefile --- orig_linux-2.6.37/drivers/input/misc/Makefile 2011-01-05 05:50:19.000000000 +0500 +++ linux-2.6.37/drivers/input/misc/Makefile 2011-03-31 19:29:21.000000000 +0500 @@ -5,6 +5,7 @@ # Each configuration option enables a list of files. obj-$(CONFIG_INPUT_88PM860X_ONKEY) += 88pm860x_onkey.o +obj-$(CONFIG_INPUT_DA9052_ONKEY) += da9052_onkey.o obj-$(CONFIG_INPUT_AB8500_PONKEY) += ab8500-ponkey.o obj-$(CONFIG_INPUT_AD714X) += ad714x.o obj-$(CONFIG_INPUT_AD714X_I2C) += ad714x-i2c.o Regards, Ashish ????{.n?+???????+%?????ݶ??w??{.n?+????{??G?????{ay?ʇڙ?,j??f???h?????????z_??(?階?ݢj"???m??????G????????????&???~???iO???z??v?^?m???? ????????I?