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author | Linus Torvalds | 2018-02-01 19:49:58 +0100 |
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committer | Linus Torvalds | 2018-02-01 19:49:58 +0100 |
commit | eea43ed86f38347979446905a20792a8be7bf5d1 (patch) | |
tree | 74a3496eca9596e5502483f8e6bd95936d277057 /drivers/input/misc/gpio_tilt_polled.c | |
parent | Merge tag 'char-misc-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/g... (diff) | |
parent | Merge branch 'next' into for-linus (diff) | |
download | kernel-qcow2-linux-eea43ed86f38347979446905a20792a8be7bf5d1.tar.gz kernel-qcow2-linux-eea43ed86f38347979446905a20792a8be7bf5d1.tar.xz kernel-qcow2-linux-eea43ed86f38347979446905a20792a8be7bf5d1.zip |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input layer updates from Dmitry Torokhov:
- evdev interface has been adjusted to extend the life of timestamps on
32 bit systems to the year of 2108
- Synaptics RMI4 driver's PS/2 guest handling ha beed updated to
improve chances of detecting trackpoints on the pass-through port
- mms114 touchcsreen controller driver has been updated to support
generic device properties and work with mms152 cntrollers
- Goodix driver now supports generic touchscreen properties
- couple of drivers for AVR32 architecture are gone as the architecture
support has been removed from the kernel
- gpio-tilt driver has been removed as there are no mainline users and
the driver itself is using legacy APIs and relies on platform data
- MODULE_LINECSE/MODULE_VERSION cleanups
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (45 commits)
Input: goodix - use generic touchscreen_properties
Input: mms114 - fix typo in definition
Input: mms114 - use BIT() macro instead of explicit shifting
Input: mms114 - replace mdelay with msleep
Input: mms114 - add support for mms152
Input: mms114 - drop platform data and use generic APIs
Input: mms114 - mark as direct input device
Input: mms114 - do not clobber interrupt trigger
Input: edt-ft5x06 - fix error handling for factory mode on non-M06
Input: stmfts - set IRQ_NOAUTOEN to the irq flag
Input: auo-pixcir-ts - delete an unnecessary return statement
Input: auo-pixcir-ts - remove custom log for a failed memory allocation
Input: da9052_tsi - remove unused mutex
Input: docs - use PROPERTY_ENTRY_U32() directly
Input: synaptics-rmi4 - log when we create a guest serio port
Input: synaptics-rmi4 - unmask F03 interrupts when port is opened
Input: synaptics-rmi4 - do not delete interrupt memory too early
Input: ad7877 - use managed resource allocations
Input: stmfts,s6sy671 - add SPDX identifier
Input: remove atmel-wm97xx touchscreen driver
...
Diffstat (limited to 'drivers/input/misc/gpio_tilt_polled.c')
-rw-r--r-- | drivers/input/misc/gpio_tilt_polled.c | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/drivers/input/misc/gpio_tilt_polled.c b/drivers/input/misc/gpio_tilt_polled.c deleted file mode 100644 index 6e217a45e39a..000000000000 --- a/drivers/input/misc/gpio_tilt_polled.c +++ /dev/null @@ -1,210 +0,0 @@ -/* - * Driver for tilt switches connected via GPIO lines - * not capable of generating interrupts - * - * Copyright (C) 2011 Heiko Stuebner <heiko@sntech.de> - * - * based on: drivers/input/keyboard/gpio_keys_polled.c - * - * Copyright (C) 2007-2010 Gabor Juhos <juhosg@openwrt.org> - * Copyright (C) 2010 Nuno Goncalves <nunojpg@gmail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/input.h> -#include <linux/input-polldev.h> -#include <linux/ioport.h> -#include <linux/platform_device.h> -#include <linux/gpio.h> -#include <linux/input/gpio_tilt.h> - -#define DRV_NAME "gpio-tilt-polled" - -struct gpio_tilt_polled_dev { - struct input_polled_dev *poll_dev; - struct device *dev; - const struct gpio_tilt_platform_data *pdata; - - int last_state; - - int threshold; - int count; -}; - -static void gpio_tilt_polled_poll(struct input_polled_dev *dev) -{ - struct gpio_tilt_polled_dev *tdev = dev->private; - const struct gpio_tilt_platform_data *pdata = tdev->pdata; - struct input_dev *input = dev->input; - struct gpio_tilt_state *tilt_state = NULL; - int state, i; - - if (tdev->count < tdev->threshold) { - tdev->count++; - } else { - state = 0; - for (i = 0; i < pdata->nr_gpios; i++) - state |= (!!gpio_get_value(pdata->gpios[i].gpio) << i); - - if (state != tdev->last_state) { - for (i = 0; i < pdata->nr_states; i++) - if (pdata->states[i].gpios == state) - tilt_state = &pdata->states[i]; - - if (tilt_state) { - for (i = 0; i < pdata->nr_axes; i++) - input_report_abs(input, - pdata->axes[i].axis, - tilt_state->axes[i]); - - input_sync(input); - } - - tdev->count = 0; - tdev->last_state = state; - } - } -} - -static void gpio_tilt_polled_open(struct input_polled_dev *dev) -{ - struct gpio_tilt_polled_dev *tdev = dev->private; - const struct gpio_tilt_platform_data *pdata = tdev->pdata; - - if (pdata->enable) - pdata->enable(tdev->dev); - - /* report initial state of the axes */ - tdev->last_state = -1; - tdev->count = tdev->threshold; - gpio_tilt_polled_poll(tdev->poll_dev); -} - -static void gpio_tilt_polled_close(struct input_polled_dev *dev) -{ - struct gpio_tilt_polled_dev *tdev = dev->private; - const struct gpio_tilt_platform_data *pdata = tdev->pdata; - - if (pdata->disable) - pdata->disable(tdev->dev); -} - -static int gpio_tilt_polled_probe(struct platform_device *pdev) -{ - const struct gpio_tilt_platform_data *pdata = - dev_get_platdata(&pdev->dev); - struct device *dev = &pdev->dev; - struct gpio_tilt_polled_dev *tdev; - struct input_polled_dev *poll_dev; - struct input_dev *input; - int error, i; - - if (!pdata || !pdata->poll_interval) - return -EINVAL; - - tdev = kzalloc(sizeof(struct gpio_tilt_polled_dev), GFP_KERNEL); - if (!tdev) { - dev_err(dev, "no memory for private data\n"); - return -ENOMEM; - } - - error = gpio_request_array(pdata->gpios, pdata->nr_gpios); - if (error) { - dev_err(dev, - "Could not request tilt GPIOs: %d\n", error); - goto err_free_tdev; - } - - poll_dev = input_allocate_polled_device(); - if (!poll_dev) { - dev_err(dev, "no memory for polled device\n"); - error = -ENOMEM; - goto err_free_gpios; - } - - poll_dev->private = tdev; - poll_dev->poll = gpio_tilt_polled_poll; - poll_dev->poll_interval = pdata->poll_interval; - poll_dev->open = gpio_tilt_polled_open; - poll_dev->close = gpio_tilt_polled_close; - - input = poll_dev->input; - - input->name = pdev->name; - input->phys = DRV_NAME"/input0"; - input->dev.parent = dev; - - input->id.bustype = BUS_HOST; - input->id.vendor = 0x0001; - input->id.product = 0x0001; - input->id.version = 0x0100; - - __set_bit(EV_ABS, input->evbit); - for (i = 0; i < pdata->nr_axes; i++) - input_set_abs_params(input, pdata->axes[i].axis, - pdata->axes[i].min, pdata->axes[i].max, - pdata->axes[i].fuzz, pdata->axes[i].flat); - - tdev->threshold = DIV_ROUND_UP(pdata->debounce_interval, - pdata->poll_interval); - - tdev->poll_dev = poll_dev; - tdev->dev = dev; - tdev->pdata = pdata; - - error = input_register_polled_device(poll_dev); - if (error) { - dev_err(dev, "unable to register polled device, err=%d\n", - error); - goto err_free_polldev; - } - - platform_set_drvdata(pdev, tdev); - - return 0; - -err_free_polldev: - input_free_polled_device(poll_dev); -err_free_gpios: - gpio_free_array(pdata->gpios, pdata->nr_gpios); -err_free_tdev: - kfree(tdev); - - return error; -} - -static int gpio_tilt_polled_remove(struct platform_device *pdev) -{ - struct gpio_tilt_polled_dev *tdev = platform_get_drvdata(pdev); - const struct gpio_tilt_platform_data *pdata = tdev->pdata; - - input_unregister_polled_device(tdev->poll_dev); - input_free_polled_device(tdev->poll_dev); - - gpio_free_array(pdata->gpios, pdata->nr_gpios); - - kfree(tdev); - - return 0; -} - -static struct platform_driver gpio_tilt_polled_driver = { - .probe = gpio_tilt_polled_probe, - .remove = gpio_tilt_polled_remove, - .driver = { - .name = DRV_NAME, - }, -}; - -module_platform_driver(gpio_tilt_polled_driver); - -MODULE_LICENSE("GPL v2"); -MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>"); -MODULE_DESCRIPTION("Polled GPIO tilt driver"); -MODULE_ALIAS("platform:" DRV_NAME); |