Input: gpio_tilt - delete driver

This driver was merged in 2011 as a tool for detecting the orientation
of a screen. The device driver assumes board file setup using the
platform data from <linux/input/gpio_tilt.h>. But no boards in the
kernel tree defines this platform data.

As I am faced with refactoring drivers to use GPIO descriptors and
pass decriptor tables from boards, or use the device tree device
drivers like these creates a serious problem: I cannot fix them and
cannot test them, not even compile-test them with a system actually
using it (no in-tree boardfile).

I suggest to delete this driver and rewrite it using device tree if
it is still in use on actively maintained systems.

I can also offer to rewrite it out of the blue using device tree if
someone promise to test it and help me iterate it.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Patchwork-Id: 10133609
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

1 files changed, 0 insertions, 74 deletions

diff --git a/include/linux/input/gpio_tilt.h b/include/linux/input/gpio_tilt.h
deleted file mode 100644
index f9d932476a80..000000000000
--- a/include/linux/input/gpio_tilt.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _INPUT_GPIO_TILT_H
-#define _INPUT_GPIO_TILT_H
-
-/**
- * struct gpio_tilt_axis - Axis used by the tilt switch
- * @axis:               Constant describing the axis, e.g. ABS_X
- * @min:                minimum value for abs_param
- * @max:                maximum value for abs_param
- * @fuzz:               fuzz value for abs_param
- * @flat:               flat value for abs_param
- */
-struct gpio_tilt_axis {
-        int axis;
-        int min;
-        int max;
-        int fuzz;
-        int flat;
-};
-
-/**
- * struct gpio_tilt_state - state description
- * @gpios:              bitfield of gpio target-states for the value
- * @axes:               array containing the axes settings for the gpio state
- *                      The array indizes must correspond to the axes defined
- *                      in platform_data
- *
- * This structure describes a supported axis settings
- * and the necessary gpio-state which represent it.
- *
- * The n-th bit in the bitfield describes the state of the n-th GPIO
- * from the gpios-array defined in gpio_regulator_config below.
- */
-struct gpio_tilt_state {
-        int gpios;
-        int *axes;
-};
-
-/**
- * struct gpio_tilt_platform_data
- * @gpios:              Array containing the gpios determining the tilt state
- * @nr_gpios:           Number of gpios
- * @axes:               Array of gpio_tilt_axis descriptions
- * @nr_axes:            Number of axes
- * @states:             Array of gpio_tilt_state entries describing
- *                      the gpio state for specific tilts
- * @nr_states:          Number of states available
- * @debounce_interval:  debounce ticks interval in msecs
- * @poll_interval:      polling interval in msecs - for polling driver only
- * @enable:             callback to enable the tilt switch
- * @disable:            callback to disable the tilt switch
- *
- * This structure contains gpio-tilt-switch configuration
- * information that must be passed by platform code to the
- * gpio-tilt input driver.
- */
-struct gpio_tilt_platform_data {
-        struct gpio *gpios;
-        int nr_gpios;
-
-        struct gpio_tilt_axis *axes;
-        int nr_axes;
-
-        struct gpio_tilt_state *states;
-        int nr_states;
-
-        int debounce_interval;
-
-        unsigned int poll_interval;
-        int (*enable)(struct device *dev);
-        void (*disable)(struct device *dev);
-};
-
-#endif