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Input: pcap_keys - remove unused driver

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Support for the ezx series of phones was removed in 2022, this
driver is just dead code.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20260430164326.2766500-1-arnd@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Arnd Bergmann 2026-04-30 18:42:47 +02:00 committed by Dmitry Torokhov
parent 26b760d0f8
commit 1622fc51fd
3 changed files with 0 additions and 136 deletions
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10
drivers/input/misc/Kconfig
View File

@ -745,16 +745,6 @@ config INPUT_WM831X_ON
To compile this driver as a module, choose M here: the module
will be called wm831x_on.
config INPUT_PCAP
tristate "Motorola EZX PCAP misc input events"
depends on EZX_PCAP
help
Say Y here if you want to use Power key and Headphone button
on Motorola EZX phones.
To compile this driver as a module, choose M here: the
module will be called pcap_keys.
config INPUT_ADXL34X
tristate "Analog Devices ADXL34x Three-Axis Digital Accelerometer"
default n

1
drivers/input/misc/Makefile
View File

@ -60,7 +60,6 @@ obj-$(CONFIG_INPUT_MAX8997_HAPTIC) += max8997_haptic.o
obj-$(CONFIG_INPUT_MC13783_PWRBUTTON) += mc13783-pwrbutton.o
obj-$(CONFIG_INPUT_MMA8450) += mma8450.o
obj-$(CONFIG_INPUT_PALMAS_PWRBUTTON) += palmas-pwrbutton.o
obj-$(CONFIG_INPUT_PCAP) += pcap_keys.o
obj-$(CONFIG_INPUT_PCF8574) += pcf8574_keypad.o
obj-$(CONFIG_INPUT_PCSPKR) += pcspkr.o
obj-$(CONFIG_INPUT_PF1550_ONKEY) += pf1550-onkey.o

125
drivers/input/misc/pcap_keys.c
View File

@ -1,125 +0,0 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Input driver for PCAP events:
* * Power key
* * Headphone button
*
* Copyright (c) 2008,2009 Ilya Petrov <ilya.muromec@gmail.com>
*/
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/mfd/ezx-pcap.h>
#include <linux/slab.h>
struct pcap_keys {
struct pcap_chip *pcap;
struct input_dev *input;
};
/* PCAP2 interrupts us on keypress */
static irqreturn_t pcap_keys_handler(int irq, void *_pcap_keys)
{
struct pcap_keys *pcap_keys = _pcap_keys;
int pirq = irq_to_pcap(pcap_keys->pcap, irq);
u32 pstat;
ezx_pcap_read(pcap_keys->pcap, PCAP_REG_PSTAT, &pstat);
pstat &= 1 << pirq;
switch (pirq) {
case PCAP_IRQ_ONOFF:
input_report_key(pcap_keys->input, KEY_POWER, !pstat);
break;
case PCAP_IRQ_MIC:
input_report_key(pcap_keys->input, KEY_HP, !pstat);
break;
}
input_sync(pcap_keys->input);
return IRQ_HANDLED;
}
static int pcap_keys_probe(struct platform_device *pdev)
{
int err = -ENOMEM;
struct pcap_keys *pcap_keys;
struct input_dev *input_dev;
pcap_keys = kmalloc_obj(*pcap_keys);
if (!pcap_keys)
return err;
pcap_keys->pcap = dev_get_drvdata(pdev->dev.parent);
input_dev = input_allocate_device();
if (!input_dev)
goto fail;
pcap_keys->input = input_dev;
platform_set_drvdata(pdev, pcap_keys);
input_dev->name = pdev->name;
input_dev->phys = "pcap-keys/input0";
input_dev->id.bustype = BUS_HOST;
input_dev->dev.parent = &pdev->dev;
__set_bit(EV_KEY, input_dev->evbit);
__set_bit(KEY_POWER, input_dev->keybit);
__set_bit(KEY_HP, input_dev->keybit);
err = input_register_device(input_dev);
if (err)
goto fail_allocate;
err = request_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF),
pcap_keys_handler, 0, "Power key", pcap_keys);
if (err)
goto fail_register;
err = request_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_MIC),
pcap_keys_handler, 0, "Headphone button", pcap_keys);
if (err)
goto fail_pwrkey;
return 0;
fail_pwrkey:
free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF), pcap_keys);
fail_register:
input_unregister_device(input_dev);
goto fail;
fail_allocate:
input_free_device(input_dev);
fail:
kfree(pcap_keys);
return err;
}
static void pcap_keys_remove(struct platform_device *pdev)
{
struct pcap_keys *pcap_keys = platform_get_drvdata(pdev);
free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF), pcap_keys);
free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_MIC), pcap_keys);
input_unregister_device(pcap_keys->input);
kfree(pcap_keys);
}
static struct platform_driver pcap_keys_device_driver = {
.probe = pcap_keys_probe,
.remove = pcap_keys_remove,
.driver = {
.name = "pcap-keys",
}
};
module_platform_driver(pcap_keys_device_driver);
MODULE_DESCRIPTION("Motorola PCAP2 input events driver");
MODULE_AUTHOR("Ilya Petrov <ilya.muromec@gmail.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:pcap_keys");