This is the ONKEY driver of the Dialog DA9055 PMIC and depends on the DA9055 MFD core driver.
This patch is functionally tested on SMDK6410 board. Signed-off-by: David Dajun Chen <[email protected]> Signed-off-by: Ashish Jangam <[email protected]> --- drivers/input/misc/Kconfig | 10 +++ drivers/input/misc/Makefile | 1 + drivers/input/misc/da9055_onkey.c | 121 +++++++++++++++++++++++++++++++++++++ 3 files changed, 132 insertions(+), 0 deletions(-) create mode 100644 drivers/input/misc/da9055_onkey.c diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 7c0f1ec..6a45cb8 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -486,6 +486,16 @@ config INPUT_DA9052_ONKEY To compile this driver as a module, choose M here: the module will be called da9052_onkey. +config INPUT_DA9055_ONKEY + tristate "Dialog Semiconductor DA9055 ONKEY" + depends on MFD_DA9055 + help + Support the ONKEY of DA9055 PMICs as an input device + reporting power button status. + + To compile this driver as a module, choose M here: the module + will be called da9055_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 83fe6f5..23347e3 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -23,6 +23,7 @@ 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-$(CONFIG_INPUT_DA9055_ONKEY) += da9055_onkey.o obj-$(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/da9055_onkey.c b/drivers/input/misc/da9055_onkey.c new file mode 100644 index 0000000..05f2996 --- /dev/null +++ b/drivers/input/misc/da9055_onkey.c @@ -0,0 +1,121 @@ +/* + * ON pin driver for Dialog DA9055 PMICs + * + * Copyright(c) 2012 Dialog Semiconductor Ltd. + * + * Author: David Dajun Chen <[email protected]> + * + * 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 <linux/init.h> +#include <linux/input.h> +#include <linux/module.h> +#include <linux/platform_device.h> + +#include <linux/mfd/da9055/core.h> + +static irqreturn_t da9055_onkey_irq(int irq, void *data) +{ + struct input_dev *input_dev = data; + + input_report_key(input_dev, KEY_POWER, 1); + input_sync(input_dev); + + return IRQ_HANDLED; +} + +static int __devinit da9055_onkey_probe(struct platform_device *pdev) +{ + struct input_dev *input_dev; + int irq, err; + + irq = platform_get_irq_byname(pdev, "ONKEY"); + if (irq < 0) { + dev_err(&pdev->dev, + "Failed to get an IRQ for input device, %d\n", irq); + return -EINVAL; + } + + input_dev = input_allocate_device(); + if (!input_dev) { + dev_err(&pdev->dev, "Failed to allocate memory\n"); + return -ENOMEM; + } + + input_dev->name = "da9055-onkey"; + input_dev->phys = "da9055-onkey/input0"; + input_dev->dev.parent = &pdev->dev; + + input_dev->evbit[0] = BIT_MASK(EV_KEY); + __set_bit(KEY_POWER, input_dev->keybit); + + err = request_threaded_irq(irq, NULL, da9055_onkey_irq, + IRQF_TRIGGER_HIGH | IRQF_ONESHOT, + "ONKEY", input_dev); + if (err < 0) { + dev_err(&pdev->dev, + "Failed to register ONKEY IRQ %d, error = %d\n", + irq, err); + goto free_onkey; + } + + err = input_register_device(input_dev); + if (err) { + dev_err(&pdev->dev, "Unable to register input device, %d\n", + err); + goto free_irq; + } + + platform_set_drvdata(pdev, input_dev); + + return 0; + +free_irq: + free_irq(irq, input_dev); +free_onkey: + input_free_device(input_dev); + + return err; +} + +static int __devexit da9055_onkey_remove(struct platform_device *pdev) +{ + struct input_dev *input_dev = platform_get_drvdata(pdev); + int irq = platform_get_irq(pdev, 0); + + free_irq(irq, input_dev); + input_unregister_device(input_dev); + + return 0; +} + +static struct platform_driver da9055_onkey_driver = { + .probe = da9055_onkey_probe, + .remove = __devexit_p(da9055_onkey_remove), + .driver = { + .name = "da9055-onkey", + .owner = THIS_MODULE, + }, +}; +static int __init da9055_onkey_init(void) +{ + + return platform_driver_register(&da9055_onkey_driver); + +} +module_init(da9055_onkey_init); + +static void __exit da9055_onkey_exit(void) +{ + platform_driver_unregister(&da9055_onkey_driver); +} +module_exit(da9055_onkey_exit); + +MODULE_AUTHOR("David Dajun Chen <[email protected]>"); +MODULE_DESCRIPTION("Onkey driver for DA9055"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:da9055-onkey"); -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
