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Input: clps711x-keypad - switch to using polled mode of input devices

Browse source 
We have added polled mode to the normal input devices with the intent of
retiring input_polled_dev. This converts clps711x-keypad driver to use the
polling mode of standard input devices and removes dependency on
INPUT_POLLDEV.

Also use managed API when allocating input device, this allows us to remove
clps711x_keypad_remove() method.

Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.kernel.org/r/20191017204217.106453-7-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov 2019-10-29 16:54:37 -07:00
parent d0fe37b923
commit ea6c52ae25
2 changed files with 29 additions and 42 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
drivers/input/keyboard/Kconfig
View file

@ -190,7 +190,6 @@ config KEYBOARD_CLPS711X
tristate "CLPS711X Keypad support"
depends on OF_GPIO && (ARCH_CLPS711X || COMPILE_TEST)
select INPUT_MATRIXKMAP
select INPUT_POLLDEV
help
Say Y here to enable the matrix keypad on the Cirrus Logic
CLPS711X CPUs.

70
drivers/input/keyboard/clps711x-keypad.c
View file

@ -6,7 +6,6 @@
*/
#include <linux/input.h>
#include <linux/input-polldev.h>
#include <linux/module.h>
#include <linux/of_gpio.h>
#include <linux/platform_device.h>
@ -30,10 +29,10 @@ struct clps711x_keypad_data {
struct clps711x_gpio_data *gpio_data;
};
static void clps711x_keypad_poll(struct input_polled_dev *dev)
static void clps711x_keypad_poll(struct input_dev *input)
{
const unsigned short *keycodes = dev->input->keycode;
struct clps711x_keypad_data *priv = dev->private;
const unsigned short *keycodes = input->keycode;
struct clps711x_keypad_data *priv = input_get_drvdata(input);
bool sync = false;
int col, row;
@ -61,14 +60,14 @@ static void clps711x_keypad_poll(struct input_polled_dev *dev)
if (state) {
set_bit(col, data->last_state);
input_event(dev->input, EV_MSC,
MSC_SCAN, code);
input_event(input,
EV_MSC, MSC_SCAN, code);
} else {
clear_bit(col, data->last_state);
}
if (keycodes[code])
input_report_key(dev->input,
input_report_key(input,
keycodes[code], state);
sync = true;
}
@ -80,7 +79,7 @@ static void clps711x_keypad_poll(struct input_polled_dev *dev)
}
if (sync)
input_sync(dev->input);
input_sync(input);
}
static int clps711x_keypad_probe(struct platform_device *pdev)
@ -88,7 +87,7 @@ static int clps711x_keypad_probe(struct platform_device *pdev)
struct clps711x_keypad_data *priv;
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
struct input_polled_dev *poll_dev;
struct input_dev *input;
u32 poll_interval;
int i, err;
@ -125,53 +124,43 @@ static int clps711x_keypad_probe(struct platform_device *pdev)
if (err)
return err;
poll_dev = input_allocate_polled_device();
if (!poll_dev)
input = devm_input_allocate_device(dev);
if (!input)
return -ENOMEM;
poll_dev->private = priv;
poll_dev->poll = clps711x_keypad_poll;
poll_dev->poll_interval = poll_interval;
poll_dev->input->name = pdev->name;
poll_dev->input->dev.parent = dev;
poll_dev->input->id.bustype = BUS_HOST;
poll_dev->input->id.vendor = 0x0001;
poll_dev->input->id.product = 0x0001;
poll_dev->input->id.version = 0x0100;
input_set_drvdata(input, priv);
input->name = pdev->name;
input->dev.parent = dev;
input->id.bustype = BUS_HOST;
input->id.vendor = 0x0001;
input->id.product = 0x0001;
input->id.version = 0x0100;
err = matrix_keypad_build_keymap(NULL, NULL, priv->row_count,
CLPS711X_KEYPAD_COL_COUNT,
NULL, poll_dev->input);
NULL, input);
if (err)
goto out_err;
return err;
input_set_capability(poll_dev->input, EV_MSC, MSC_SCAN);
input_set_capability(input, EV_MSC, MSC_SCAN);
if (of_property_read_bool(np, "autorepeat"))
__set_bit(EV_REP, poll_dev->input->evbit);
platform_set_drvdata(pdev, poll_dev);
__set_bit(EV_REP, input->evbit);
/* Set all columns to low */
regmap_update_bits(priv->syscon, SYSCON_OFFSET, SYSCON1_KBDSCAN_MASK,
SYSCON1_KBDSCAN(1));
err = input_register_polled_device(poll_dev);
err = input_setup_polling(input, clps711x_keypad_poll);
if (err)
goto out_err;
return err;
return 0;
input_set_poll_interval(input, poll_interval);
out_err:
input_free_polled_device(poll_dev);
return err;
}
static int clps711x_keypad_remove(struct platform_device *pdev)
{
struct input_polled_dev *poll_dev = platform_get_drvdata(pdev);
input_unregister_polled_device(poll_dev);
input_free_polled_device(poll_dev);
err = input_register_device(input);
if (err)
return err;
return 0;
}
@ -188,7 +177,6 @@ static struct platform_driver clps711x_keypad_driver = {
.of_match_table = clps711x_keypad_of_match,
},
.probe = clps711x_keypad_probe,
.remove = clps711x_keypad_remove,
};
module_platform_driver(clps711x_keypad_driver);