From patchwork Thu Jun 4 11:02:32 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steve Twiss X-Patchwork-Id: 6545981 Return-Path: X-Original-To: patchwork-linux-input@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id B2F289F326 for ; Thu, 4 Jun 2015 11:09:28 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 758E4206D6 for ; Thu, 4 Jun 2015 11:09:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 155B22068E for ; Thu, 4 Jun 2015 11:09:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751773AbbFDLJZ (ORCPT ); Thu, 4 Jun 2015 07:09:25 -0400 Received: from mail1.bemta3.messagelabs.com ([195.245.230.165]:49518 "EHLO mail1.bemta3.messagelabs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750938AbbFDLJX (ORCPT ); Thu, 4 Jun 2015 07:09:23 -0400 Received: from [85.158.137.19] by server-5.bemta-3.messagelabs.com id 84/0B-23832-7D130755; Thu, 04 Jun 2015 11:09:11 +0000 X-Env-Sender: stwiss.opensource@diasemi.com X-Msg-Ref: server-7.tower-39.messagelabs.com!1433416150!23113486!1 X-Originating-IP: [82.210.246.133] X-StarScan-Received: X-StarScan-Version: 6.13.16; banners=-,-,- X-VirusChecked: Checked Received: (qmail 25130 invoked from network); 4 Jun 2015 11:09:10 -0000 Received: from mailrelay1.diasemi.com (HELO NB-EX-CASHUB01.diasemi.com) (82.210.246.133) by server-7.tower-39.messagelabs.com with AES128-SHA encrypted SMTP; 4 Jun 2015 11:09:10 -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 14.3.181.6; Thu, 4 Jun 2015 13:09:10 +0200 Received: from swsrvapps-01.diasemi.com (Not Verified[10.20.28.141]) by mailrelay1.diasemi.com with ESMTP Gateway id ; Thu, 04 Jun 2015 13:09:10 +0200 Received: (from stwiss@localhost) by swsrvapps-01.diasemi.com (8.14.3/8.14.3/Submit/Dlg) id t54B99FQ005315; Thu, 4 Jun 2015 12:09:09 +0100 X-Authentication-Warning: swsrvapps-01.diasemi.com: stwiss set sender to stwiss.opensource@diasemi.com using -f Message-ID: In-Reply-To: References: From: S Twiss Date: Thu, 4 Jun 2015 12:02:32 +0100 Subject: [RESEND PATCH V4 1/1] input: misc: da9063: OnKey driver To: Andrew Morton , Dmitry Torokhov , Jiri Kosina CC: DT , David Dajun Chen , INPUT , Ian Campbell , Kumar Gala , LKML , Lee Jones , Mark Rutland , Pawel Moll , Rob Herring , Samuel Ortiz , Steve Twiss , Support Opensource MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: 8d172408-bd6a-42b1-8e53-daaedf35a5af 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: Steve Twiss Add OnKey driver support for DA9063 Signed-off-by: Steve Twiss --- The changes made in PATCH V3 have been taken from the DA9062 OnKey review thread. Please see https://lkml.org/lkml/2015/4/29/406 for more information on this. Version History Changes in V4 - No change, just a resend. Changes in V3 - Move the MFD code changes into a separate patch [PATCH V3 3/3] - Rename OnKey driver to use underscore: da9063_onkey.c - Header and MODULE_LICENSE macro update for GPL and filename change - Remove MAINTAINERS file (no longer needed due to rename of onkey driver) - Delete input_unregister_device call from platform driver remove function - Replaced dev_notice() with dev_dbg() for key press notification Changes in V2 - Remove the circular dependency comment in the main e-mail body linking PATCH V1 1/2 and 2/2 - Alter the copyright header information to match expected GPLv2 text from http://www.gnu.org/licenses/gpl-2.0.html This patch applies against linux-next and v4.1-rc3 drivers/input/misc/Kconfig | 10 ++ drivers/input/misc/Makefile | 1 + drivers/input/misc/da9063_onkey.c | 227 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 238 insertions(+) create mode 100644 drivers/input/misc/da9063_onkey.c diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 4436ab1..d917883 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -610,6 +610,16 @@ 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 78ba4c1..4f95c56 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-$(CONFIG_INPUT_E3X0_BUTTON) += e3x0-button.o obj-$(CONFIG_INPUT_DRV260X_HAPTICS) += drv260x.o diff --git a/drivers/input/misc/da9063_onkey.c b/drivers/input/misc/da9063_onkey.c new file mode 100644 index 0000000..250595c --- /dev/null +++ b/drivers/input/misc/da9063_onkey.c @@ -0,0 +1,227 @@ +/* + * da9063_onkey.c - Onkey device driver for DA9063 + * Copyright (C) 2015 Dialog Semiconductor Ltd. + * + * 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. + * + * This program 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 General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct da9063_onkey { + struct da9063 *hw; + struct delayed_work work; + struct input_dev *input; + int irq; + 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 fault_log = 0; + bool poll = true; + int ret; + + /* poll to see when the pin is released */ + 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); + + poll = false; + } + + /* if the fault log KEY_RESET is detected, + * then clear it and shutdown via I2C + */ + ret = regmap_read(onkey->hw->regmap, DA9063_REG_FAULT_LOG, &fault_log); + if (ret < 0) + dev_warn(&onkey->input->dev, "Cannot read FAULT_LOG\n"); + + if (fault_log & DA9063_KEY_RESET) { + ret = regmap_write(onkey->hw->regmap, + DA9063_REG_FAULT_LOG, + DA9063_KEY_RESET); + if (ret < 0) + dev_warn(&onkey->input->dev, + "Cannot reset KEY_RESET fault log\n"); + else { + /* at this point we do any S/W housekeeping + * and then send shutdown command + */ + dev_dbg(&onkey->input->dev, + "Sending SHUTDOWN to DA9063 ...\n"); + ret = regmap_write(onkey->hw->regmap, + DA9063_REG_CONTROL_F, + DA9063_SHUTDOWN); + if (ret < 0) + dev_err(&onkey->input->dev, + "Cannot SHUTDOWN DA9063\n"); + } + } + +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)) { + 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_sync(onkey->input); + 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; + + if (pdata) + kp_tmp = pdata->key_power; + else { + kp_tmp = of_property_read_bool((&pdev->dev)->of_node, + "dlg,disable-key-power"); + kp_tmp = !kp_tmp; + } + + onkey = devm_kzalloc(&pdev->dev, sizeof(struct da9063_onkey), + GFP_KERNEL); + if (!onkey) { + dev_err(&pdev->dev, "Failed to allocate memory.\n"); + ret = -ENOMEM; + goto err; + } + + 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"); + ret = -ENOMEM; + goto err; + } + + ret = platform_get_irq_byname(pdev, "ONKEY"); + if (ret < 0) { + dev_err(&pdev->dev, "Failed to get platform IRQ.\n"); + goto err; + } + onkey->irq = ret; + + ret = request_threaded_irq(onkey->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"); + goto err; + } + + 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"); + goto err_irq; + } + + platform_set_drvdata(pdev, onkey); + return 0; + +err_irq: + free_irq(onkey->irq, onkey); + cancel_delayed_work_sync(&onkey->work); +err: + return ret; +} + +static int da9063_onkey_remove(struct platform_device *pdev) +{ + struct da9063_onkey *onkey = platform_get_drvdata(pdev); + + free_irq(onkey->irq, onkey); + cancel_delayed_work_sync(&onkey->work); + 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"); +MODULE_ALIAS("platform:" DA9063_DRVNAME_ONKEY);