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Input: apanel - switch to using brightness_set_blocking() 

Now that LEDs core allows "blocking" flavor of "set brightness" method we
can use it and get rid of private work item. As a bonus, we are no longer
forgetting to cancel it when we unbind the driver.

Reviewed-by: Sven Van Asbroeck <TheSven73@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov 2019-02-06 10:32:46 -08:00
parent f420c54e4b
commit 1cd48dc518
1 changed files with 4 additions and 20 deletions
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24
drivers/input/misc/apanel.c
View File

@ -22,7 +22,6 @@
#include <linux/io.h>
#include <linux/input-polldev.h>
#include <linux/i2c.h>
#include <linux/workqueue.h>
#include <linux/leds.h>
#define APANEL_NAME "Fujitsu Application Panel"
@ -59,8 +58,6 @@ struct apanel {
struct i2c_client *client;
unsigned short keymap[MAX_PANEL_KEYS];
u16 nkeys;
u16 led_bits;
struct work_struct led_work;
struct led_classdev mail_led;
};
@ -109,25 +106,13 @@ static void apanel_poll(struct input_polled_dev *ipdev)
report_key(idev, ap->keymap[i]);
}
/* Track state changes of LED */
static void led_update(struct work_struct *work)
{
struct apanel *ap = container_of(work, struct apanel, led_work);
i2c_smbus_write_word_data(ap->client, 0x10, ap->led_bits);
}
static void mail_led_set(struct led_classdev *led,
static int mail_led_set(struct led_classdev *led,
enum led_brightness value)
{
struct apanel *ap = container_of(led, struct apanel, mail_led);
u16 led_bits = value != LED_OFF ? 0x8000 : 0x0000;
if (value != LED_OFF)
ap->led_bits |= 0x8000;
else
ap->led_bits &= ~0x8000;
schedule_work(&ap->led_work);
return i2c_smbus_write_word_data(ap->client, 0x10, led_bits);
}
static int apanel_remove(struct i2c_client *client)
@ -179,7 +164,7 @@ static struct apanel apanel = {
},
.mail_led = {
.name = "mail:blue",
.brightness_set = mail_led_set,
.brightness_set_blocking = mail_led_set,
},
};
@ -235,7 +220,6 @@ static int apanel_probe(struct i2c_client *client,
if (err)
goto out3;
INIT_WORK(&ap->led_work, led_update);
if (device_chip[APANEL_DEV_LED] != CHIP_NONE) {
err = led_classdev_register(&client->dev, &ap->mail_led);
if (err)