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Input: ixp4xx-beeper - delete driver

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The NSLU2 has been migrated to devicetree and there we use
the gpio-beeper.c driver instead, the boardfile will be deleted
for kernel v5.15 so drop this custom and now unneeded driver.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210714115028.916360-1-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Linus Walleij 2021-07-14 12:11:02 -07:00 committed by Dmitry Torokhov
parent 320424c7d4
commit 9aa75914e5
3 changed files with 0 additions and 196 deletions
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12
drivers/input/misc/Kconfig
View File

@ -309,18 +309,6 @@ config INPUT_GPIO_VIBRA
To compile this driver as a module, choose M here: the module will be
called gpio-vibra.
config INPUT_IXP4XX_BEEPER
tristate "IXP4XX Beeper support"
depends on ARCH_IXP4XX
help
If you say yes here, you can connect a beeper to the
ixp4xx gpio pins. This is used by the LinkSys NSLU2.
If unsure, say Y.
To compile this driver as a module, choose M here: the
module will be called ixp4xx-beeper.
config INPUT_COBALT_BTNS
tristate "Cobalt button interface"
depends on MIPS_COBALT

1
drivers/input/misc/Makefile
View File

@ -44,7 +44,6 @@ obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
obj-$(CONFIG_INPUT_IMS_PCU) += ims-pcu.o
obj-$(CONFIG_INPUT_IQS269A) += iqs269a.o
obj-$(CONFIG_INPUT_IQS626A) += iqs626a.o
obj-$(CONFIG_INPUT_IXP4XX_BEEPER) += ixp4xx-beeper.o
obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o
obj-$(CONFIG_INPUT_KXTJ9) += kxtj9.o
obj-$(CONFIG_INPUT_M68K_BEEP) += m68kspkr.o

183
drivers/input/misc/ixp4xx-beeper.c
View File

@ -1,183 +0,0 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Generic IXP4xx beeper driver
*
* Copyright (C) 2005 Tower Technologies
*
* based on nslu2-io.c
* Copyright (C) 2004 Karen Spearel
*
* Author: Alessandro Zummo <a.zummo@towertech.it>
* Maintainers: http://www.nslu2-linux.org/
*/
#include <linux/module.h>
#include <linux/input.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/gpio.h>
#include <mach/hardware.h>
MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
MODULE_DESCRIPTION("ixp4xx beeper driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:ixp4xx-beeper");
static DEFINE_SPINLOCK(beep_lock);
static int ixp4xx_timer2_irq;
static void ixp4xx_spkr_control(unsigned int pin, unsigned int count)
{
unsigned long flags;
spin_lock_irqsave(&beep_lock, flags);
if (count) {
gpio_direction_output(pin, 0);
*IXP4XX_OSRT2 = (count & ~IXP4XX_OST_RELOAD_MASK) | IXP4XX_OST_ENABLE;
} else {
gpio_direction_output(pin, 1);
gpio_direction_input(pin);
*IXP4XX_OSRT2 = 0;
}
spin_unlock_irqrestore(&beep_lock, flags);
}
static int ixp4xx_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
{
unsigned int pin = (unsigned int) input_get_drvdata(dev);
unsigned int count = 0;
if (type != EV_SND)
return -1;
switch (code) {
case SND_BELL:
if (value)
value = 1000;
case SND_TONE:
break;
default:
return -1;
}
if (value > 20 && value < 32767)
count = (ixp4xx_timer_freq / (value * 4)) - 1;
ixp4xx_spkr_control(pin, count);
return 0;
}
static irqreturn_t ixp4xx_spkr_interrupt(int irq, void *dev_id)
{
unsigned int pin = (unsigned int) dev_id;
/* clear interrupt */
*IXP4XX_OSST = IXP4XX_OSST_TIMER_2_PEND;
/* flip the beeper output */
gpio_set_value(pin, !gpio_get_value(pin));
return IRQ_HANDLED;
}
static int ixp4xx_spkr_probe(struct platform_device *dev)
{
struct input_dev *input_dev;
int irq;
int err;
input_dev = input_allocate_device();
if (!input_dev)
return -ENOMEM;
input_set_drvdata(input_dev, (void *) dev->id);
input_dev->name = "ixp4xx beeper";
input_dev->phys = "ixp4xx/gpio";
input_dev->id.bustype = BUS_HOST;
input_dev->id.vendor = 0x001f;
input_dev->id.product = 0x0001;
input_dev->id.version = 0x0100;
input_dev->dev.parent = &dev->dev;
input_dev->evbit[0] = BIT_MASK(EV_SND);
input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
input_dev->event = ixp4xx_spkr_event;
irq = platform_get_irq(dev, 0);
if (irq < 0) {
err = irq;
goto err_free_device;
}
err = gpio_request(dev->id, "ixp4-beeper");
if (err)
goto err_free_device;
err = request_irq(irq, &ixp4xx_spkr_interrupt,
IRQF_NO_SUSPEND, "ixp4xx-beeper",
(void *) dev->id);
if (err)
goto err_free_gpio;
ixp4xx_timer2_irq = irq;
err = input_register_device(input_dev);
if (err)
goto err_free_irq;
platform_set_drvdata(dev, input_dev);
return 0;
err_free_irq:
free_irq(irq, (void *)dev->id);
err_free_gpio:
gpio_free(dev->id);
err_free_device:
input_free_device(input_dev);
return err;
}
static int ixp4xx_spkr_remove(struct platform_device *dev)
{
struct input_dev *input_dev = platform_get_drvdata(dev);
unsigned int pin = (unsigned int) input_get_drvdata(input_dev);
input_unregister_device(input_dev);
/* turn the speaker off */
disable_irq(ixp4xx_timer2_irq);
ixp4xx_spkr_control(pin, 0);
free_irq(ixp4xx_timer2_irq, (void *)dev->id);
gpio_free(dev->id);
return 0;
}
static void ixp4xx_spkr_shutdown(struct platform_device *dev)
{
struct input_dev *input_dev = platform_get_drvdata(dev);
unsigned int pin = (unsigned int) input_get_drvdata(input_dev);
/* turn off the speaker */
disable_irq(ixp4xx_timer2_irq);
ixp4xx_spkr_control(pin, 0);
}
static struct platform_driver ixp4xx_spkr_platform_driver = {
.driver = {
.name = "ixp4xx-beeper",
},
.probe = ixp4xx_spkr_probe,
.remove = ixp4xx_spkr_remove,
.shutdown = ixp4xx_spkr_shutdown,
};
module_platform_driver(ixp4xx_spkr_platform_driver);