On 19 May 2015 11:33, S Twiss wrote: > To: Dmitry Torokhov > Cc: DT; David Dajun Chen; INPUT; Ian Campbell; Kumar Gala; LKML; Lee > Jones; Mark Rutland; Pawel Moll; Rob Herring; Samuel Ortiz; Opensource > [Steve Twiss]; Support Opensource > Subject: [RESEND PATCH V4 1/3] input: misc: da9063: OnKey driver > > From: Steve Twiss <stwiss.opensource@xxxxxxxxxxx> > > Add OnKey driver support for DA9063 > > Signed-off-by: Steve Twiss <stwiss.opensource@xxxxxxxxxxx> > > --- > The changes made here 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 Hi Dmitry, Could I please ask: is this OnKey driver suitable? Or are there still comments pending for it? If there are any outstanding issues with this OnKey driver then could you please let me know so I can resolve them? Thanks, Regards, Steve > > 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 <linux/module.h> > +#include <linux/errno.h> > +#include <linux/input.h> > +#include <linux/interrupt.h> > +#include <linux/platform_device.h> > +#include <linux/workqueue.h> > +#include <linux/regmap.h> > +#include <linux/of.h> > +#include <linux/mfd/da9063/core.h> > +#include <linux/mfd/da9063/pdata.h> > +#include <linux/mfd/da9063/registers.h> > + > +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 <stwiss.opensource@xxxxxxxxxxx>"); > +MODULE_DESCRIPTION("Onkey device driver for Dialog DA9063"); > +MODULE_LICENSE("GPL"); > +MODULE_ALIAS("platform:" DA9063_DRVNAME_ONKEY); > -- > end-of-patch for RESEND PATCH V4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
