Commit 119df5ee authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

input: remove pxa930_rotary keyboard driver 



The pxa930 platform is getting removed and no upstream machine
ever defined a rotary keyboard device.

Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-input@vger.kernel.org
Acked-by: default avatarRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 82d40986

drivers/input/keyboard/Kconfig

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Original line number Diff line number Diff line
@@ -550,15 +550,6 @@ config KEYBOARD_PXA27x 
	  To compile this driver as a module, choose M here: the

	  module will be called pxa27x_keypad.



config KEYBOARD_PXA930_ROTARY

	tristate "PXA930/PXA935 Enhanced Rotary Controller Support"

	depends on CPU_PXA930 || CPU_PXA935

	help

	  Enable support for PXA930/PXA935 Enhanced Rotary Controller.



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

	  module will be called pxa930_rotary.



config KEYBOARD_PMIC8XXX

	tristate "Qualcomm PMIC8XXX keypad support"

	depends on MFD_PM8XXX

drivers/input/keyboard/Makefile

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Original line number Diff line number Diff line
@@ -54,7 +54,6 @@ obj-$(CONFIG_KEYBOARD_OPENCORES) += opencores-kbd.o 
obj-$(CONFIG_KEYBOARD_PINEPHONE)	+= pinephone-keyboard.o

obj-$(CONFIG_KEYBOARD_PMIC8XXX)		+= pmic8xxx-keypad.o

obj-$(CONFIG_KEYBOARD_PXA27x)		+= pxa27x_keypad.o

obj-$(CONFIG_KEYBOARD_PXA930_ROTARY)	+= pxa930_rotary.o

obj-$(CONFIG_KEYBOARD_QT1050)           += qt1050.o

obj-$(CONFIG_KEYBOARD_QT1070)           += qt1070.o

obj-$(CONFIG_KEYBOARD_QT2160)		+= qt2160.o

drivers/input/keyboard/pxa930_rotary.c

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

/*

 * Driver for the enhanced rotary controller on pxa930 and pxa935

 */



#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/interrupt.h>

#include <linux/input.h>

#include <linux/platform_device.h>

#include <linux/io.h>

#include <linux/slab.h>



#include <linux/platform_data/keyboard-pxa930_rotary.h>



#define SBCR	(0x04)

#define ERCR	(0x0c)



#define SBCR_ERSB	(1 << 5)



struct pxa930_rotary {

	struct input_dev	*input_dev;

	void __iomem		*mmio_base;

	int			last_ercr;



	struct pxa930_rotary_platform_data *pdata;

};



static void clear_sbcr(struct pxa930_rotary *r)

{

	uint32_t sbcr = __raw_readl(r->mmio_base + SBCR);



	__raw_writel(sbcr | SBCR_ERSB, r->mmio_base + SBCR);

	__raw_writel(sbcr & ~SBCR_ERSB, r->mmio_base + SBCR);

}



static irqreturn_t rotary_irq(int irq, void *dev_id)

{

	struct pxa930_rotary *r = dev_id;

	struct pxa930_rotary_platform_data *pdata = r->pdata;

	int ercr, delta, key;



	ercr = __raw_readl(r->mmio_base + ERCR) & 0xf;

	clear_sbcr(r);



	delta = ercr - r->last_ercr;

	if (delta == 0)

		return IRQ_HANDLED;



	r->last_ercr = ercr;



	if (pdata->up_key && pdata->down_key) {

		key = (delta > 0) ? pdata->up_key : pdata->down_key;

		input_report_key(r->input_dev, key, 1);

		input_sync(r->input_dev);

		input_report_key(r->input_dev, key, 0);

	} else

		input_report_rel(r->input_dev, pdata->rel_code, delta);



	input_sync(r->input_dev);



	return IRQ_HANDLED;

}



static int pxa930_rotary_open(struct input_dev *dev)

{

	struct pxa930_rotary *r = input_get_drvdata(dev);



	clear_sbcr(r);



	return 0;

}



static void pxa930_rotary_close(struct input_dev *dev)

{

	struct pxa930_rotary *r = input_get_drvdata(dev);



	clear_sbcr(r);

}



static int pxa930_rotary_probe(struct platform_device *pdev)

{

	struct pxa930_rotary_platform_data *pdata =

			dev_get_platdata(&pdev->dev);

	struct pxa930_rotary *r;

	struct input_dev *input_dev;

	struct resource *res;

	int irq;

	int err;



	irq = platform_get_irq(pdev, 0);

	if (irq < 0)

		return -ENXIO;



	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!res) {

		dev_err(&pdev->dev, "no I/O memory defined\n");

		return -ENXIO;

	}



	if (!pdata) {

		dev_err(&pdev->dev, "no platform data defined\n");

		return -EINVAL;

	}



	r = kzalloc(sizeof(struct pxa930_rotary), GFP_KERNEL);

	if (!r)

		return -ENOMEM;



	r->mmio_base = ioremap(res->start, resource_size(res));

	if (r->mmio_base == NULL) {

		dev_err(&pdev->dev, "failed to remap IO memory\n");

		err = -ENXIO;

		goto failed_free;

	}



	r->pdata = pdata;

	platform_set_drvdata(pdev, r);



	/* allocate and register the input device */

	input_dev = input_allocate_device();

	if (!input_dev) {

		dev_err(&pdev->dev, "failed to allocate input device\n");

		err = -ENOMEM;

		goto failed_free_io;

	}



	input_dev->name = pdev->name;

	input_dev->id.bustype = BUS_HOST;

	input_dev->open = pxa930_rotary_open;

	input_dev->close = pxa930_rotary_close;

	input_dev->dev.parent = &pdev->dev;



	if (pdata->up_key && pdata->down_key) {

		__set_bit(pdata->up_key, input_dev->keybit);

		__set_bit(pdata->down_key, input_dev->keybit);

		__set_bit(EV_KEY, input_dev->evbit);

	} else {

		__set_bit(pdata->rel_code, input_dev->relbit);

		__set_bit(EV_REL, input_dev->evbit);

	}



	r->input_dev = input_dev;

	input_set_drvdata(input_dev, r);



	err = request_irq(irq, rotary_irq, 0,

			"enhanced rotary", r);

	if (err) {

		dev_err(&pdev->dev, "failed to request IRQ\n");

		goto failed_free_input;

	}



	err = input_register_device(input_dev);

	if (err) {

		dev_err(&pdev->dev, "failed to register input device\n");

		goto failed_free_irq;

	}



	return 0;



failed_free_irq:

	free_irq(irq, r);

failed_free_input:

	input_free_device(input_dev);

failed_free_io:

	iounmap(r->mmio_base);

failed_free:

	kfree(r);

	return err;

}



static int pxa930_rotary_remove(struct platform_device *pdev)

{

	struct pxa930_rotary *r = platform_get_drvdata(pdev);



	free_irq(platform_get_irq(pdev, 0), r);

	input_unregister_device(r->input_dev);

	iounmap(r->mmio_base);

	kfree(r);



	return 0;

}



static struct platform_driver pxa930_rotary_driver = {

	.driver		= {

		.name	= "pxa930-rotary",

	},

	.probe		= pxa930_rotary_probe,

	.remove		= pxa930_rotary_remove,

};

module_platform_driver(pxa930_rotary_driver);



MODULE_LICENSE("GPL");

MODULE_DESCRIPTION("Driver for PXA93x Enhanced Rotary Controller");

MODULE_AUTHOR("Yao Yong <yaoyong@marvell.com>");

include/linux/platform_data/keyboard-pxa930_rotary.h

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

#ifndef __ASM_ARCH_PXA930_ROTARY_H

#define __ASM_ARCH_PXA930_ROTARY_H



/* NOTE:

 *

 * rotary can be either interpreted as a ralative input event (e.g.

 * REL_WHEEL or REL_HWHEEL) or a specific key event (e.g. UP/DOWN

 * or LEFT/RIGHT), depending on if up_key & down_key are assigned

 * or rel_code is assigned a non-zero value. When all are non-zero,

 * up_key and down_key will be preferred.

 */

struct pxa930_rotary_platform_data {

	int	up_key;

	int	down_key;

	int	rel_code;

};



void __init pxa930_set_rotarykey_info(struct pxa930_rotary_platform_data *info);



#endif /* __ASM_ARCH_PXA930_ROTARY_H */