leds: max8997: Simplify max8997_led_set_mode implementation
It is not necessary to call max8997_update_reg() twice just for updating MAX8997_REG_LEN_CNTL register. With proper val and mask arguments to max8997_update_reg() call, this can be done in one max8997_update_reg() call. And then we can remove max8997_led_clear_mode() function. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
This commit is contained in:
Родитель
5ecf6e40bb
Коммит
eb18618b80
|
@ -49,71 +49,37 @@ struct max8997_led {
|
|||
struct mutex mutex;
|
||||
};
|
||||
|
||||
static void max8997_led_clear_mode(struct max8997_led *led,
|
||||
enum max8997_led_mode mode)
|
||||
{
|
||||
struct i2c_client *client = led->iodev->i2c;
|
||||
u8 val = 0, mask = 0;
|
||||
int ret;
|
||||
|
||||
switch (mode) {
|
||||
case MAX8997_FLASH_MODE:
|
||||
mask = led->id ?
|
||||
MAX8997_LED1_FLASH_MASK : MAX8997_LED0_FLASH_MASK;
|
||||
break;
|
||||
case MAX8997_MOVIE_MODE:
|
||||
mask = led->id ?
|
||||
MAX8997_LED1_MOVIE_MASK : MAX8997_LED0_MOVIE_MASK;
|
||||
break;
|
||||
case MAX8997_FLASH_PIN_CONTROL_MODE:
|
||||
mask = led->id ?
|
||||
MAX8997_LED1_FLASH_PIN_MASK : MAX8997_LED0_FLASH_PIN_MASK;
|
||||
break;
|
||||
case MAX8997_MOVIE_PIN_CONTROL_MODE:
|
||||
mask = led->id ?
|
||||
MAX8997_LED1_MOVIE_PIN_MASK : MAX8997_LED0_MOVIE_PIN_MASK;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
if (mask) {
|
||||
ret = max8997_update_reg(client,
|
||||
MAX8997_REG_LEN_CNTL, val, mask);
|
||||
if (ret)
|
||||
dev_err(led->iodev->dev,
|
||||
"failed to update register(%d)\n", ret);
|
||||
}
|
||||
}
|
||||
|
||||
static void max8997_led_set_mode(struct max8997_led *led,
|
||||
enum max8997_led_mode mode)
|
||||
{
|
||||
int ret;
|
||||
struct i2c_client *client = led->iodev->i2c;
|
||||
u8 mask = 0;
|
||||
|
||||
/* First, clear the previous mode */
|
||||
max8997_led_clear_mode(led, led->led_mode);
|
||||
u8 mask = 0, val;
|
||||
|
||||
switch (mode) {
|
||||
case MAX8997_FLASH_MODE:
|
||||
mask = led->id ?
|
||||
mask = MAX8997_LED1_FLASH_MASK | MAX8997_LED0_FLASH_MASK;
|
||||
val = led->id ?
|
||||
MAX8997_LED1_FLASH_MASK : MAX8997_LED0_FLASH_MASK;
|
||||
led->cdev.max_brightness = MAX8997_LED_FLASH_MAX_BRIGHTNESS;
|
||||
break;
|
||||
case MAX8997_MOVIE_MODE:
|
||||
mask = led->id ?
|
||||
mask = MAX8997_LED1_MOVIE_MASK | MAX8997_LED0_MOVIE_MASK;
|
||||
val = led->id ?
|
||||
MAX8997_LED1_MOVIE_MASK : MAX8997_LED0_MOVIE_MASK;
|
||||
led->cdev.max_brightness = MAX8997_LED_MOVIE_MAX_BRIGHTNESS;
|
||||
break;
|
||||
case MAX8997_FLASH_PIN_CONTROL_MODE:
|
||||
mask = led->id ?
|
||||
mask = MAX8997_LED1_FLASH_PIN_MASK |
|
||||
MAX8997_LED0_FLASH_PIN_MASK;
|
||||
val = led->id ?
|
||||
MAX8997_LED1_FLASH_PIN_MASK : MAX8997_LED0_FLASH_PIN_MASK;
|
||||
led->cdev.max_brightness = MAX8997_LED_FLASH_MAX_BRIGHTNESS;
|
||||
break;
|
||||
case MAX8997_MOVIE_PIN_CONTROL_MODE:
|
||||
mask = led->id ?
|
||||
mask = MAX8997_LED1_MOVIE_PIN_MASK |
|
||||
MAX8997_LED0_MOVIE_PIN_MASK;
|
||||
val = led->id ?
|
||||
MAX8997_LED1_MOVIE_PIN_MASK : MAX8997_LED0_MOVIE_PIN_MASK;
|
||||
led->cdev.max_brightness = MAX8997_LED_MOVIE_MAX_BRIGHTNESS;
|
||||
break;
|
||||
|
@ -123,8 +89,8 @@ static void max8997_led_set_mode(struct max8997_led *led,
|
|||
}
|
||||
|
||||
if (mask) {
|
||||
ret = max8997_update_reg(client,
|
||||
MAX8997_REG_LEN_CNTL, mask, mask);
|
||||
ret = max8997_update_reg(client, MAX8997_REG_LEN_CNTL, val,
|
||||
mask);
|
||||
if (ret)
|
||||
dev_err(led->iodev->dev,
|
||||
"failed to update register(%d)\n", ret);
|
||||
|
|
Загрузка…
Ссылка в новой задаче