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path: root/drivers/leds/leds-bd2802.c
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Diffstat (limited to 'drivers/leds/leds-bd2802.c')
-rw-r--r--drivers/leds/leds-bd2802.c93
1 files changed, 43 insertions, 50 deletions
diff --git a/drivers/leds/leds-bd2802.c b/drivers/leds/leds-bd2802.c
index 19dc4b61a10..6078c15d345 100644
--- a/drivers/leds/leds-bd2802.c
+++ b/drivers/leds/leds-bd2802.c
@@ -19,15 +19,15 @@
#include <linux/leds.h>
#include <linux/leds-bd2802.h>
#include <linux/slab.h>
-
+#include <linux/pm.h>
#define LED_CTL(rgb2en, rgb1en) ((rgb2en) << 4 | ((rgb1en) << 0))
#define BD2802_LED_OFFSET 0xa
#define BD2802_COLOR_OFFSET 0x3
-#define BD2802_REG_CLKSETUP 0x00
-#define BD2802_REG_CONTROL 0x01
+#define BD2802_REG_CLKSETUP 0x00
+#define BD2802_REG_CONTROL 0x01
#define BD2802_REG_HOURSETUP 0x02
#define BD2802_REG_CURRENT1SETUP 0x03
#define BD2802_REG_CURRENT2SETUP 0x04
@@ -93,7 +93,7 @@ struct bd2802_led {
* In ADF mode, user can set registers of BD2802GU directly,
* therefore BD2802GU doesn't enter reset state.
*/
- int adf_on;
+ int adf_on;
enum led_ids led_id;
enum led_colors color;
@@ -319,20 +319,6 @@ static void bd2802_turn_off(struct bd2802_led *led, enum led_ids id,
bd2802_update_state(led, id, color, BD2802_OFF);
}
-static void bd2802_restore_state(struct bd2802_led *led)
-{
- int i;
-
- for (i = 0; i < LED_NUM; i++) {
- if (led->led[i].r)
- bd2802_turn_on(led, i, RED, led->led[i].r);
- if (led->led[i].g)
- bd2802_turn_on(led, i, GREEN, led->led[i].g);
- if (led->led[i].b)
- bd2802_turn_on(led, i, BLUE, led->led[i].b);
- }
-}
-
#define BD2802_SET_REGISTER(reg_addr, reg_name) \
static ssize_t bd2802_store_reg##reg_addr(struct device *dev, \
struct device_attribute *attr, const char *buf, size_t count) \
@@ -342,7 +328,7 @@ static ssize_t bd2802_store_reg##reg_addr(struct device *dev, \
int ret; \
if (!count) \
return -EINVAL; \
- ret = strict_strtoul(buf, 16, &val); \
+ ret = kstrtoul(buf, 16, &val); \
if (ret) \
return ret; \
down_write(&led->rwsem); \
@@ -506,7 +492,7 @@ static ssize_t bd2802_store_##attr_name(struct device *dev, \
int ret; \
if (!count) \
return -EINVAL; \
- ret = strict_strtoul(buf, 16, &val); \
+ ret = kstrtoul(buf, 16, &val); \
if (ret) \
return ret; \
down_write(&led->rwsem); \
@@ -676,29 +662,31 @@ failed_unregister_led1_R:
static void bd2802_unregister_led_classdev(struct bd2802_led *led)
{
cancel_work_sync(&led->work);
+ led_classdev_unregister(&led->cdev_led2b);
+ led_classdev_unregister(&led->cdev_led2g);
+ led_classdev_unregister(&led->cdev_led2r);
+ led_classdev_unregister(&led->cdev_led1b);
+ led_classdev_unregister(&led->cdev_led1g);
led_classdev_unregister(&led->cdev_led1r);
}
-static int __devinit bd2802_probe(struct i2c_client *client,
+static int bd2802_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct bd2802_led *led;
struct bd2802_led_platform_data *pdata;
int ret, i;
- led = kzalloc(sizeof(struct bd2802_led), GFP_KERNEL);
- if (!led) {
- dev_err(&client->dev, "failed to allocate driver data\n");
+ led = devm_kzalloc(&client->dev, sizeof(struct bd2802_led), GFP_KERNEL);
+ if (!led)
return -ENOMEM;
- }
led->client = client;
- pdata = led->pdata = client->dev.platform_data;
+ pdata = led->pdata = dev_get_platdata(&client->dev);
i2c_set_clientdata(client, led);
/* Configure RESET GPIO (L: RESET, H: RESET cancel) */
- gpio_request(pdata->reset_gpio, "RGB_RESETB");
- gpio_direction_output(pdata->reset_gpio, 1);
+ gpio_request_one(pdata->reset_gpio, GPIOF_OUT_INIT_HIGH, "RGB_RESETB");
/* Tacss = min 0.1ms */
udelay(100);
@@ -707,7 +695,7 @@ static int __devinit bd2802_probe(struct i2c_client *client,
ret = bd2802_write_byte(client, BD2802_REG_CLKSETUP, 0x00);
if (ret < 0) {
dev_err(&client->dev, "failed to detect device\n");
- goto failed_free;
+ return ret;
} else
dev_info(&client->dev, "return 0x%02x\n", ret);
@@ -739,13 +727,10 @@ static int __devinit bd2802_probe(struct i2c_client *client,
failed_unregister_dev_file:
for (i--; i >= 0; i--)
device_remove_file(&led->client->dev, bd2802_attributes[i]);
-failed_free:
- kfree(led);
-
return ret;
}
-static int __exit bd2802_remove(struct i2c_client *client)
+static int bd2802_remove(struct i2c_client *client)
{
struct bd2802_led *led = i2c_get_clientdata(client);
int i;
@@ -756,13 +741,28 @@ static int __exit bd2802_remove(struct i2c_client *client)
bd2802_disable_adv_conf(led);
for (i = 0; i < ARRAY_SIZE(bd2802_attributes); i++)
device_remove_file(&led->client->dev, bd2802_attributes[i]);
- kfree(led);
return 0;
}
-static int bd2802_suspend(struct i2c_client *client, pm_message_t mesg)
+#ifdef CONFIG_PM_SLEEP
+static void bd2802_restore_state(struct bd2802_led *led)
+{
+ int i;
+
+ for (i = 0; i < LED_NUM; i++) {
+ if (led->led[i].r)
+ bd2802_turn_on(led, i, RED, led->led[i].r);
+ if (led->led[i].g)
+ bd2802_turn_on(led, i, GREEN, led->led[i].g);
+ if (led->led[i].b)
+ bd2802_turn_on(led, i, BLUE, led->led[i].b);
+ }
+}
+
+static int bd2802_suspend(struct device *dev)
{
+ struct i2c_client *client = to_i2c_client(dev);
struct bd2802_led *led = i2c_get_clientdata(client);
gpio_set_value(led->pdata->reset_gpio, 0);
@@ -770,8 +770,9 @@ static int bd2802_suspend(struct i2c_client *client, pm_message_t mesg)
return 0;
}
-static int bd2802_resume(struct i2c_client *client)
+static int bd2802_resume(struct device *dev)
{
+ struct i2c_client *client = to_i2c_client(dev);
struct bd2802_led *led = i2c_get_clientdata(client);
if (!bd2802_is_all_off(led) || led->adf_on) {
@@ -781,6 +782,9 @@ static int bd2802_resume(struct i2c_client *client)
return 0;
}
+#endif
+
+static SIMPLE_DEV_PM_OPS(bd2802_pm, bd2802_suspend, bd2802_resume);
static const struct i2c_device_id bd2802_id[] = {
{ "BD2802", 0 },
@@ -791,25 +795,14 @@ MODULE_DEVICE_TABLE(i2c, bd2802_id);
static struct i2c_driver bd2802_i2c_driver = {
.driver = {
.name = "BD2802",
+ .pm = &bd2802_pm,
},
.probe = bd2802_probe,
- .remove = __exit_p(bd2802_remove),
- .suspend = bd2802_suspend,
- .resume = bd2802_resume,
+ .remove = bd2802_remove,
.id_table = bd2802_id,
};
-static int __init bd2802_init(void)
-{
- return i2c_add_driver(&bd2802_i2c_driver);
-}
-module_init(bd2802_init);
-
-static void __exit bd2802_exit(void)
-{
- i2c_del_driver(&bd2802_i2c_driver);
-}
-module_exit(bd2802_exit);
+module_i2c_driver(bd2802_i2c_driver);
MODULE_AUTHOR("Kim Kyuwon <q1.kim@samsung.com>");
MODULE_DESCRIPTION("BD2802 LED driver");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-05 21:39:13 +0000