Commit 4ea8391e authored by Linus Walleij's avatar Linus Walleij Committed by Dmitry Torokhov
Browse files

Input: delete unused GP2AP002A00F driver 



There is now an IIO driver for GP2AP002A00F and GP2AP002S00F in
drivers/iio/light/gp2ap002.c.

Delete this driver, it is unused in the kernel tree and new users can make
use of the IIO driver.

Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20200417203059.8151-1-linus.walleij@linaro.org


Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 81b4d1d2

drivers/input/misc/Kconfig

+0 −11
Original line number Diff line number Diff line
@@ -265,17 +265,6 @@ config INPUT_APANEL 
	 To compile this driver as a module, choose M here: the module will

	 be called apanel.



config INPUT_GP2A

	tristate "Sharp GP2AP002A00F I2C Proximity/Opto sensor driver"

	depends on I2C

	depends on GPIOLIB || COMPILE_TEST

	help

	  Say Y here if you have a Sharp GP2AP002A00F proximity/als combo-chip

	  hooked to an I2C bus.



	  To compile this driver as a module, choose M here: the

	  module will be called gp2ap002a00f.



config INPUT_GPIO_BEEPER

	tristate "Generic GPIO Beeper support"

	depends on GPIOLIB || COMPILE_TEST

drivers/input/misc/Makefile

+0 −1
Original line number Diff line number Diff line
@@ -33,7 +33,6 @@ obj-$(CONFIG_INPUT_E3X0_BUTTON) += e3x0-button.o 
obj-$(CONFIG_INPUT_DRV260X_HAPTICS)	+= drv260x.o

obj-$(CONFIG_INPUT_DRV2665_HAPTICS)	+= drv2665.o

obj-$(CONFIG_INPUT_DRV2667_HAPTICS)	+= drv2667.o

obj-$(CONFIG_INPUT_GP2A)		+= gp2ap002a00f.o

obj-$(CONFIG_INPUT_GPIO_BEEPER)		+= gpio-beeper.o

obj-$(CONFIG_INPUT_GPIO_DECODER)	+= gpio_decoder.o

obj-$(CONFIG_INPUT_GPIO_VIBRA)		+= gpio-vibra.o

drivers/input/misc/gp2ap002a00f.c

deleted100644 → 0
+0 −281
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (C) 2011 Sony Ericsson Mobile Communications Inc.

 *

 * Author: Courtney Cavin <courtney.cavin@sonyericsson.com>

 * Prepared for up-stream by: Oskar Andero <oskar.andero@sonyericsson.com>

 */



#include <linux/i2c.h>

#include <linux/irq.h>

#include <linux/slab.h>

#include <linux/input.h>

#include <linux/module.h>

#include <linux/interrupt.h>

#include <linux/gpio.h>

#include <linux/delay.h>

#include <linux/input/gp2ap002a00f.h>



struct gp2a_data {

	struct input_dev *input;

	const struct gp2a_platform_data *pdata;

	struct i2c_client *i2c_client;

};



enum gp2a_addr {

	GP2A_ADDR_PROX	= 0x0,

	GP2A_ADDR_GAIN	= 0x1,

	GP2A_ADDR_HYS	= 0x2,

	GP2A_ADDR_CYCLE	= 0x3,

	GP2A_ADDR_OPMOD	= 0x4,

	GP2A_ADDR_CON	= 0x6

};



enum gp2a_controls {

	/* Software Shutdown control: 0 = shutdown, 1 = normal operation */

	GP2A_CTRL_SSD	= 0x01

};



static int gp2a_report(struct gp2a_data *dt)

{

	int vo = gpio_get_value(dt->pdata->vout_gpio);



	input_report_switch(dt->input, SW_FRONT_PROXIMITY, !vo);

	input_sync(dt->input);



	return 0;

}



static irqreturn_t gp2a_irq(int irq, void *handle)

{

	struct gp2a_data *dt = handle;



	gp2a_report(dt);



	return IRQ_HANDLED;

}



static int gp2a_enable(struct gp2a_data *dt)

{

	return i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_OPMOD,

					 GP2A_CTRL_SSD);

}



static int gp2a_disable(struct gp2a_data *dt)

{

	return i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_OPMOD,

					 0x00);

}



static int gp2a_device_open(struct input_dev *dev)

{

	struct gp2a_data *dt = input_get_drvdata(dev);

	int error;



	error = gp2a_enable(dt);

	if (error < 0) {

		dev_err(&dt->i2c_client->dev,

			"unable to activate, err %d\n", error);

		return error;

	}



	gp2a_report(dt);



	return 0;

}



static void gp2a_device_close(struct input_dev *dev)

{

	struct gp2a_data *dt = input_get_drvdata(dev);

	int error;



	error = gp2a_disable(dt);

	if (error < 0)

		dev_err(&dt->i2c_client->dev,

			"unable to deactivate, err %d\n", error);

}



static int gp2a_initialize(struct gp2a_data *dt)

{

	int error;



	error = i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_GAIN,

					  0x08);

	if (error < 0)

		return error;



	error = i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_HYS,

					  0xc2);

	if (error < 0)

		return error;



	error = i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_CYCLE,

					  0x04);

	if (error < 0)

		return error;



	error = gp2a_disable(dt);



	return error;

}



static int gp2a_probe(struct i2c_client *client,

				const struct i2c_device_id *id)

{

	const struct gp2a_platform_data *pdata = dev_get_platdata(&client->dev);

	struct gp2a_data *dt;

	int error;



	if (!pdata)

		return -EINVAL;



	if (pdata->hw_setup) {

		error = pdata->hw_setup(client);

		if (error < 0)

			return error;

	}



	error = gpio_request_one(pdata->vout_gpio, GPIOF_IN, GP2A_I2C_NAME);

	if (error)

		goto err_hw_shutdown;



	dt = kzalloc(sizeof(struct gp2a_data), GFP_KERNEL);

	if (!dt) {

		error = -ENOMEM;

		goto err_free_gpio;

	}



	dt->pdata = pdata;

	dt->i2c_client = client;



	error = gp2a_initialize(dt);

	if (error < 0)

		goto err_free_mem;



	dt->input = input_allocate_device();

	if (!dt->input) {

		error = -ENOMEM;

		goto err_free_mem;

	}



	input_set_drvdata(dt->input, dt);



	dt->input->open = gp2a_device_open;

	dt->input->close = gp2a_device_close;

	dt->input->name = GP2A_I2C_NAME;

	dt->input->id.bustype = BUS_I2C;

	dt->input->dev.parent = &client->dev;



	input_set_capability(dt->input, EV_SW, SW_FRONT_PROXIMITY);



	error = request_threaded_irq(client->irq, NULL, gp2a_irq,

			IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING |

				IRQF_ONESHOT,

			GP2A_I2C_NAME, dt);

	if (error) {

		dev_err(&client->dev, "irq request failed\n");

		goto err_free_input_dev;

	}



	error = input_register_device(dt->input);

	if (error) {

		dev_err(&client->dev, "device registration failed\n");

		goto err_free_irq;

	}



	device_init_wakeup(&client->dev, pdata->wakeup);

	i2c_set_clientdata(client, dt);



	return 0;



err_free_irq:

	free_irq(client->irq, dt);

err_free_input_dev:

	input_free_device(dt->input);

err_free_mem:

	kfree(dt);

err_free_gpio:

	gpio_free(pdata->vout_gpio);

err_hw_shutdown:

	if (pdata->hw_shutdown)

		pdata->hw_shutdown(client);

	return error;

}



static int gp2a_remove(struct i2c_client *client)

{

	struct gp2a_data *dt = i2c_get_clientdata(client);

	const struct gp2a_platform_data *pdata = dt->pdata;



	free_irq(client->irq, dt);



	input_unregister_device(dt->input);

	kfree(dt);



	gpio_free(pdata->vout_gpio);



	if (pdata->hw_shutdown)

		pdata->hw_shutdown(client);



	return 0;

}



static int __maybe_unused gp2a_suspend(struct device *dev)

{

	struct i2c_client *client = to_i2c_client(dev);

	struct gp2a_data *dt = i2c_get_clientdata(client);

	int retval = 0;



	if (device_may_wakeup(&client->dev)) {

		enable_irq_wake(client->irq);

	} else {

		mutex_lock(&dt->input->mutex);

		if (dt->input->users)

			retval = gp2a_disable(dt);

		mutex_unlock(&dt->input->mutex);

	}



	return retval;

}



static int __maybe_unused gp2a_resume(struct device *dev)

{

	struct i2c_client *client = to_i2c_client(dev);

	struct gp2a_data *dt = i2c_get_clientdata(client);

	int retval = 0;



	if (device_may_wakeup(&client->dev)) {

		disable_irq_wake(client->irq);

	} else {

		mutex_lock(&dt->input->mutex);

		if (dt->input->users)

			retval = gp2a_enable(dt);

		mutex_unlock(&dt->input->mutex);

	}



	return retval;

}



static SIMPLE_DEV_PM_OPS(gp2a_pm, gp2a_suspend, gp2a_resume);



static const struct i2c_device_id gp2a_i2c_id[] = {

	{ GP2A_I2C_NAME, 0 },

	{ }

};

MODULE_DEVICE_TABLE(i2c, gp2a_i2c_id);



static struct i2c_driver gp2a_i2c_driver = {

	.driver = {

		.name	= GP2A_I2C_NAME,

		.pm	= &gp2a_pm,

	},

	.probe		= gp2a_probe,

	.remove		= gp2a_remove,

	.id_table	= gp2a_i2c_id,

};



module_i2c_driver(gp2a_i2c_driver);



MODULE_AUTHOR("Courtney Cavin <courtney.cavin@sonyericsson.com>");

MODULE_DESCRIPTION("Sharp GP2AP002A00F I2C Proximity/Opto sensor driver");

MODULE_LICENSE("GPL v2");

include/linux/input/gp2ap002a00f.h

deleted100644 → 0
+0 −23
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

#ifndef _GP2AP002A00F_H_

#define _GP2AP002A00F_H_



#include <linux/i2c.h>



#define GP2A_I2C_NAME "gp2ap002a00f"



/**

 * struct gp2a_platform_data - Sharp gp2ap002a00f proximity platform data

 * @vout_gpio: The gpio connected to the object detected pin (VOUT)

 * @wakeup: Set to true if the proximity can wake the device from suspend

 * @hw_setup: Callback for setting up hardware such as gpios and vregs

 * @hw_shutdown: Callback for properly shutting down hardware

 */

struct gp2a_platform_data {

	int vout_gpio;

	bool wakeup;

	int (*hw_setup)(struct i2c_client *client);

	int (*hw_shutdown)(struct i2c_client *client);

};



#endif