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: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann
parent
82d40986a6
commit
119df5ee5b
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@ -550,15 +550,6 @@ config KEYBOARD_PXA27x
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To compile this driver as a module, choose M here: the
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module will be called pxa27x_keypad.
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config KEYBOARD_PXA930_ROTARY
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tristate "PXA930/PXA935 Enhanced Rotary Controller Support"
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depends on CPU_PXA930 || CPU_PXA935
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help
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Enable support for PXA930/PXA935 Enhanced Rotary Controller.
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To compile this driver as a module, choose M here: the
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module will be called pxa930_rotary.
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config KEYBOARD_PMIC8XXX
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tristate "Qualcomm PMIC8XXX keypad support"
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depends on MFD_PM8XXX
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@ -54,7 +54,6 @@ obj-$(CONFIG_KEYBOARD_OPENCORES) += opencores-kbd.o
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obj-$(CONFIG_KEYBOARD_PINEPHONE) += pinephone-keyboard.o
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obj-$(CONFIG_KEYBOARD_PMIC8XXX) += pmic8xxx-keypad.o
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obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o
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obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o
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obj-$(CONFIG_KEYBOARD_QT1050) += qt1050.o
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obj-$(CONFIG_KEYBOARD_QT1070) += qt1070.o
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obj-$(CONFIG_KEYBOARD_QT2160) += qt2160.o
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@ -1,195 +0,0 @@
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Driver for the enhanced rotary controller on pxa930 and pxa935
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/interrupt.h>
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#include <linux/input.h>
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <linux/slab.h>
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#include <linux/platform_data/keyboard-pxa930_rotary.h>
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#define SBCR (0x04)
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#define ERCR (0x0c)
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#define SBCR_ERSB (1 << 5)
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struct pxa930_rotary {
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struct input_dev *input_dev;
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void __iomem *mmio_base;
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int last_ercr;
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struct pxa930_rotary_platform_data *pdata;
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};
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static void clear_sbcr(struct pxa930_rotary *r)
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{
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uint32_t sbcr = __raw_readl(r->mmio_base + SBCR);
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__raw_writel(sbcr | SBCR_ERSB, r->mmio_base + SBCR);
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__raw_writel(sbcr & ~SBCR_ERSB, r->mmio_base + SBCR);
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}
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static irqreturn_t rotary_irq(int irq, void *dev_id)
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{
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struct pxa930_rotary *r = dev_id;
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struct pxa930_rotary_platform_data *pdata = r->pdata;
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int ercr, delta, key;
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ercr = __raw_readl(r->mmio_base + ERCR) & 0xf;
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clear_sbcr(r);
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delta = ercr - r->last_ercr;
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if (delta == 0)
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return IRQ_HANDLED;
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r->last_ercr = ercr;
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if (pdata->up_key && pdata->down_key) {
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key = (delta > 0) ? pdata->up_key : pdata->down_key;
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input_report_key(r->input_dev, key, 1);
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input_sync(r->input_dev);
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input_report_key(r->input_dev, key, 0);
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} else
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input_report_rel(r->input_dev, pdata->rel_code, delta);
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input_sync(r->input_dev);
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return IRQ_HANDLED;
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}
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static int pxa930_rotary_open(struct input_dev *dev)
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{
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struct pxa930_rotary *r = input_get_drvdata(dev);
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clear_sbcr(r);
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return 0;
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}
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static void pxa930_rotary_close(struct input_dev *dev)
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{
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struct pxa930_rotary *r = input_get_drvdata(dev);
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clear_sbcr(r);
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}
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static int pxa930_rotary_probe(struct platform_device *pdev)
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{
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struct pxa930_rotary_platform_data *pdata =
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dev_get_platdata(&pdev->dev);
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struct pxa930_rotary *r;
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struct input_dev *input_dev;
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struct resource *res;
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int irq;
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int err;
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irq = platform_get_irq(pdev, 0);
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if (irq < 0)
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return -ENXIO;
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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if (!res) {
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dev_err(&pdev->dev, "no I/O memory defined\n");
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return -ENXIO;
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}
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if (!pdata) {
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dev_err(&pdev->dev, "no platform data defined\n");
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return -EINVAL;
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}
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r = kzalloc(sizeof(struct pxa930_rotary), GFP_KERNEL);
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if (!r)
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return -ENOMEM;
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r->mmio_base = ioremap(res->start, resource_size(res));
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if (r->mmio_base == NULL) {
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dev_err(&pdev->dev, "failed to remap IO memory\n");
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err = -ENXIO;
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goto failed_free;
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}
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r->pdata = pdata;
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platform_set_drvdata(pdev, r);
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/* allocate and register the input device */
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input_dev = input_allocate_device();
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if (!input_dev) {
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dev_err(&pdev->dev, "failed to allocate input device\n");
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err = -ENOMEM;
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goto failed_free_io;
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}
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input_dev->name = pdev->name;
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input_dev->id.bustype = BUS_HOST;
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input_dev->open = pxa930_rotary_open;
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input_dev->close = pxa930_rotary_close;
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input_dev->dev.parent = &pdev->dev;
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if (pdata->up_key && pdata->down_key) {
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__set_bit(pdata->up_key, input_dev->keybit);
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__set_bit(pdata->down_key, input_dev->keybit);
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__set_bit(EV_KEY, input_dev->evbit);
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} else {
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__set_bit(pdata->rel_code, input_dev->relbit);
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__set_bit(EV_REL, input_dev->evbit);
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}
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r->input_dev = input_dev;
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input_set_drvdata(input_dev, r);
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err = request_irq(irq, rotary_irq, 0,
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"enhanced rotary", r);
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if (err) {
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dev_err(&pdev->dev, "failed to request IRQ\n");
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goto failed_free_input;
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}
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err = input_register_device(input_dev);
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if (err) {
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dev_err(&pdev->dev, "failed to register input device\n");
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goto failed_free_irq;
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}
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return 0;
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failed_free_irq:
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free_irq(irq, r);
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failed_free_input:
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input_free_device(input_dev);
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failed_free_io:
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iounmap(r->mmio_base);
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failed_free:
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kfree(r);
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return err;
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}
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static int pxa930_rotary_remove(struct platform_device *pdev)
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{
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struct pxa930_rotary *r = platform_get_drvdata(pdev);
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free_irq(platform_get_irq(pdev, 0), r);
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input_unregister_device(r->input_dev);
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iounmap(r->mmio_base);
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kfree(r);
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return 0;
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}
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static struct platform_driver pxa930_rotary_driver = {
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.driver = {
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.name = "pxa930-rotary",
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},
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.probe = pxa930_rotary_probe,
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.remove = pxa930_rotary_remove,
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};
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module_platform_driver(pxa930_rotary_driver);
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("Driver for PXA93x Enhanced Rotary Controller");
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MODULE_AUTHOR("Yao Yong <yaoyong@marvell.com>");
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@ -1,21 +0,0 @@
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASM_ARCH_PXA930_ROTARY_H
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#define __ASM_ARCH_PXA930_ROTARY_H
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/* NOTE:
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*
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* rotary can be either interpreted as a ralative input event (e.g.
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* REL_WHEEL or REL_HWHEEL) or a specific key event (e.g. UP/DOWN
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* or LEFT/RIGHT), depending on if up_key & down_key are assigned
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* or rel_code is assigned a non-zero value. When all are non-zero,
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* up_key and down_key will be preferred.
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*/
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struct pxa930_rotary_platform_data {
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int up_key;
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int down_key;
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int rel_code;
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};
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void __init pxa930_set_rotarykey_info(struct pxa930_rotary_platform_data *info);
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#endif /* __ASM_ARCH_PXA930_ROTARY_H */
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