From patchwork Fri Mar 7 12:37:45 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steve Twiss X-Patchwork-Id: 3791041 Return-Path: X-Original-To: patchwork-linux-input@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id E3267BF540 for ; Fri, 7 Mar 2014 13:08:02 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id CF631201EF for ; Fri, 7 Mar 2014 13:08:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A24B7201D5 for ; Fri, 7 Mar 2014 13:08:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751977AbaCGNH7 (ORCPT ); Fri, 7 Mar 2014 08:07:59 -0500 Received: from mail1.bemta5.messagelabs.com ([195.245.231.137]:43570 "EHLO mail1.bemta5.messagelabs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751929AbaCGNH7 (ORCPT ); Fri, 7 Mar 2014 08:07:59 -0500 X-Greylist: delayed 393 seconds by postgrey-1.27 at vger.kernel.org; Fri, 07 Mar 2014 08:07:58 EST Received: from [85.158.139.19:63798] by server-1.bemta-5.messagelabs.com id 77/43-12859-423C9135; Fri, 07 Mar 2014 13:01:24 +0000 X-Env-Sender: stwiss.opensource@diasemi.com X-Msg-Ref: server-2.tower-178.messagelabs.com!1394197283!22969930!1 X-Originating-IP: [82.210.246.133] X-StarScan-Received: X-StarScan-Version: 6.9.16; banners=-,-,- X-VirusChecked: Checked Received: (qmail 18274 invoked from network); 7 Mar 2014 13:01:24 -0000 Received: from mailrelay1.diasemi.com (HELO NB-EX-CASHUB01.diasemi.com) (82.210.246.133) by server-2.tower-178.messagelabs.com with AES128-SHA encrypted SMTP; 7 Mar 2014 13:01:24 -0000 Received: from mailrelay1.diasemi.com (10.1.17.243) by NB-EX-CASHUB01.diasemi.com (10.1.16.140) with Microsoft SMTP Server id 14.2.309.2; Fri, 7 Mar 2014 14:01:24 +0100 Received: from swsrvapps-01.diasemi.com (Not Verified[10.20.28.141]) by mailrelay1.diasemi.com with ESMTP Gateway id ; Fri, 07 Mar 2014 14:01:23 +0100 Received: (from stwiss@localhost) by swsrvapps-01.diasemi.com (8.14.3/8.14.3/Submit/Dlg) id s27D1MAi000705; Fri, 7 Mar 2014 13:01:22 GMT X-Authentication-Warning: swsrvapps-01.diasemi.com: stwiss set sender to stwiss.opensource@diasemi.com using -f Message-ID: In-Reply-To: References: From: "Opensource [Steve Twiss]" Date: Fri, 7 Mar 2014 12:37:45 +0000 Subject: [RFC V1 2/2] input: misc: da9063: OnKey driver To: Dmitry Torokhov CC: David Dajun Chen , LKML-INPUT , LKML-KERNEL MIME-Version: 1.0 Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Opensource [Steve Twiss] Add the OnKey driver for DA9063. Signed-off-by: Opensource [Steve Twiss] --- Checks performed with next-20140307/scripts/checkpatch.pl da9063-onkey.c total: 0 errors, 0 warnings, 202 lines checked Kconfig total: 0 errors, 11 warnings, 679 lines checked Makefile total: 0 errors, 0 warnings, 66 lines checked Hello, This is a RFC for the Dialog DA9063 Onkey driver. Dependencies: This driver makes use of the name field "ONKEY" as part of the function call: platform_get_irq_byname(); This driver is therefore dependent on this change to the name field in the properties of the the OnKey IORESOURCE_IRQ resource structure (part of the mfd_cell Onkey resource inside da9063-core.c). This change will be added as part of the final set when I submit all patches as a single PATCH set. This patch applies against kernel version linux-next next-20140307 Regards, Steve Twiss, Dialog Semiconductor Ltd. drivers/input/misc/Kconfig | 10 ++ drivers/input/misc/Makefile | 1 + drivers/input/misc/da9063-onkey.c | 202 +++++++++++++++++++++++++++++++++++++ 3 files changed, 213 insertions(+) create mode 100644 drivers/input/misc/da9063-onkey.c diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 762e6d2..3deb008 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -522,6 +522,16 @@ config INPUT_DA9055_ONKEY To compile this driver as a module, choose M here: the module will be called da9055_onkey. +config INPUT_DA9063_ONKEY + tristate "Dialog DA9063 OnKey" + depends on MFD_DA9063 + help + Support the ONKEY of Dialog DA9063 Power Management IC as an + input device reporting power button statue. + + To compile this driver as a module, choose M here: the module + will be called da9063-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 cda71fc..f40caa7 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -25,6 +25,7 @@ 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_DA9055_ONKEY) += da9055_onkey.o +obj-$(CONFIG_INPUT_DA9063_ONKEY) += da9063-onkey.o obj-$(CONFIG_INPUT_DM355EVM) += dm355evm_keys.o obj-$(CONFIG_INPUT_GP2A) += gp2ap002a00f.o obj-$(CONFIG_INPUT_GPIO_BEEPER) += gpio-beeper.o diff --git a/drivers/input/misc/da9063-onkey.c b/drivers/input/misc/da9063-onkey.c new file mode 100644 index 0000000..654f52b --- /dev/null +++ b/drivers/input/misc/da9063-onkey.c @@ -0,0 +1,202 @@ +/* da9063-onkey.c - Onkey device driver for DA9063 + * Copyright (C) 2013 Dialog Semiconductor Ltd. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +struct da9063_onkey { + struct da9063 *hw; + struct delayed_work work; + struct input_dev *input; + bool key_power; +}; + +static void da9063_poll_on(struct work_struct *work) +{ + struct da9063_onkey *onkey = container_of(work, struct da9063_onkey, + work.work); + unsigned int val; + int poll = 1; + int ret; + + /* poll to see when the pin is deasserted */ + ret = regmap_read(onkey->hw->regmap, DA9063_REG_STATUS_A, &val); + if (ret < 0) { + dev_err(&onkey->input->dev, + "Failed to read ON status: %d\n", ret); + goto err_poll; + } + + if (!(val & DA9063_NONKEY)) { + ret = regmap_update_bits(onkey->hw->regmap, + DA9063_REG_CONTROL_B, + DA9063_NONKEY_LOCK, 0); + if (ret < 0) { + dev_err(&onkey->input->dev, + "Failed to reset the Key Delay %d\n", ret); + goto err_poll; + } + + input_report_key(onkey->input, KEY_POWER, 0); + input_sync(onkey->input); + + /* unmask the onkey interrupt again */ + ret = regmap_update_bits(onkey->hw->regmap, + DA9063_REG_IRQ_MASK_A, + DA9063_NONKEY, 0); + if (ret < 0) { + dev_err(&onkey->input->dev, + "Failed to unmask the onkey IRQ: %d\n", ret); + goto err_poll; + } + + poll = 0; + } + +err_poll: + if (poll) + schedule_delayed_work(&onkey->work, 50); +} + +static irqreturn_t da9063_onkey_irq_handler(int irq, void *data) +{ + struct da9063_onkey *onkey = data; + unsigned int val; + int ret; + + ret = regmap_read(onkey->hw->regmap, DA9063_REG_STATUS_A, &val); + if (onkey->key_power && (ret >= 0) && (val & DA9063_NONKEY)) { + ret = regmap_update_bits(onkey->hw->regmap, + DA9063_REG_IRQ_MASK_A, + DA9063_NONKEY, 1); + if (ret < 0) + dev_err(&onkey->input->dev, + "Failed to mask the onkey IRQ: %d\n", ret); + + input_report_key(onkey->input, KEY_POWER, 1); + input_sync(onkey->input); + + schedule_delayed_work(&onkey->work, 0); + dev_dbg(&onkey->input->dev, "KEY_POWER pressed.\n"); + } else { + input_report_key(onkey->input, KEY_SLEEP, 1); + input_report_key(onkey->input, KEY_SLEEP, 0); + input_sync(onkey->input); + dev_dbg(&onkey->input->dev, "KEY_SLEEP pressed.\n"); + } + + return IRQ_HANDLED; +} + +static int da9063_onkey_probe(struct platform_device *pdev) +{ + struct da9063 *da9063 = dev_get_drvdata(pdev->dev.parent); + struct da9063_pdata *pdata = dev_get_platdata(da9063->dev); + struct da9063_onkey *onkey; + bool kp_tmp = true; + int ret = 0; + int irq; + + if (pdata) + kp_tmp = pdata->key_power; + + if (!kp_tmp) + dev_err(&pdev->dev, + "Software power down key is not set.\n"); + + onkey = devm_kzalloc(&pdev->dev, sizeof(struct da9063_onkey), + GFP_KERNEL); + if (!onkey) { + dev_err(&pdev->dev, "Failed to allocate memory.\n"); + return -ENOMEM; + } + + INIT_DELAYED_WORK(&onkey->work, da9063_poll_on); + + onkey->input = devm_input_allocate_device(&pdev->dev); + if (!onkey->input) { + dev_err(&pdev->dev, "Failed to allocated input device.\n"); + return -ENOMEM; + } + + irq = platform_get_irq_byname(pdev, "ONKEY"); + if (irq < 0) { + dev_err(&pdev->dev, "Failed to get platform IRQ.\n"); + return irq; + } + + ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, + da9063_onkey_irq_handler, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + "ONKEY", onkey); + if (ret) { + dev_err(&pdev->dev, + "Failed to request input device IRQ.\n"); + return ret; + } + + onkey->hw = da9063; + onkey->key_power = kp_tmp; + onkey->input->evbit[0] = BIT_MASK(EV_KEY); + onkey->input->name = DA9063_DRVNAME_ONKEY; + onkey->input->phys = DA9063_DRVNAME_ONKEY "/input0"; + onkey->input->dev.parent = &pdev->dev; + + if (onkey->key_power) + input_set_capability(onkey->input, EV_KEY, KEY_POWER); + input_set_capability(onkey->input, EV_KEY, KEY_SLEEP); + + ret = input_register_device(onkey->input); + if (ret) { + dev_err(&pdev->dev, + "Failed to register input device.\n"); + return ret; + } + + platform_set_drvdata(pdev, onkey); + return ret; +} + +static int da9063_onkey_remove(struct platform_device *pdev) +{ + struct da9063_onkey *onkey = platform_get_drvdata(pdev); + cancel_delayed_work_sync(&onkey->work); + input_unregister_device(onkey->input); + return 0; +} + +static struct platform_driver da9063_onkey_driver = { + .probe = da9063_onkey_probe, + .remove = da9063_onkey_remove, + .driver = { + .name = DA9063_DRVNAME_ONKEY, + .owner = THIS_MODULE, + }, +}; + +module_platform_driver(da9063_onkey_driver); + +MODULE_AUTHOR("S Twiss "); +MODULE_DESCRIPTION("Onkey device driver for Dialog DA9063"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:" DA9063_DRVNAME_ONKEY);