Input: pcap_keys - remove unused driver

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>

diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 94a753fcb64fa5ee1b3ec8b61e31492d9401b515..1f6c57dba030813c248c068eda26ca1842271cb2 100644 (file)
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -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

diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 415fc4e2918be89fa2a6fb79f013e3b50738f949..2281d6803fce92e54a05c2c4f57ee7f7ea7ef2b8 100644 (file)
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -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

diff --git a/drivers/input/misc/pcap_keys.c b/drivers/input/misc/pcap_keys.c
deleted file mode 100644 (file)
index b19899b..0000000
--- a/drivers/input/misc/pcap_keys.c
+++ /dev/null
@@ -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");