diff options
Diffstat (limited to 'drivers/video/backlight/adp8870_bl.c')
| -rw-r--r-- | drivers/video/backlight/adp8870_bl.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/video/backlight/adp8870_bl.c b/drivers/video/backlight/adp8870_bl.c index 251af4d38d86..037e43083343 100644 --- a/drivers/video/backlight/adp8870_bl.c +++ b/drivers/video/backlight/adp8870_bl.c @@ -144,6 +144,7 @@ static int adp8870_read(struct i2c_client *client, int reg, uint8_t *val) static int adp8870_write(struct i2c_client *client, u8 reg, u8 val) { int ret = i2c_smbus_write_byte_data(client, reg, val); + if (ret) dev_err(&client->dev, "failed to write\n"); @@ -195,6 +196,7 @@ static int adp8870_clr_bits(struct i2c_client *client, int reg, uint8_t bit_mask static void adp8870_led_work(struct work_struct *work) { struct adp8870_led *led = container_of(work, struct adp8870_led, work); + adp8870_write(led->client, ADP8870_ISC1 + led->id - 1, led->new_brightness >> 1); } @@ -399,6 +401,7 @@ static int adp8870_bl_set(struct backlight_device *bl, int brightness) static int adp8870_bl_update_status(struct backlight_device *bl) { int brightness = bl->props.brightness; + if (bl->props.power != FB_BLANK_UNBLANK) brightness = 0; @@ -649,6 +652,7 @@ static ssize_t adp8870_bl_l1_daylight_max_store(struct device *dev, { struct adp8870_bl *data = dev_get_drvdata(dev); int ret = kstrtoul(buf, 10, &data->cached_daylight_max); + if (ret) return ret; |