diff options
Diffstat (limited to 'driver/led/lm3509.c')
| -rw-r--r-- | driver/led/lm3509.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/driver/led/lm3509.c b/driver/led/lm3509.c index 81dd940c4f..5df604bac6 100644 --- a/driver/led/lm3509.c +++ b/driver/led/lm3509.c @@ -70,6 +70,16 @@ static int lm3509_set_brightness(int percent) return lm3509_write(LM3509_REG_BMAIN, brightness_to_bmain(percent)); } +static int lm3509_get_brightness(void) +{ + int rv, val; + rv = lm3509_read(LM3509_REG_BMAIN, &val); + if (rv) + return -1; + val &= LM3509_BMAIN_MASK; + return lm3509_brightness[val] / 10; +} + static int lm3509_init(void) { return EC_SUCCESS; @@ -78,6 +88,7 @@ static int lm3509_init(void) const struct kblight_drv kblight_lm3509 = { .init = lm3509_init, .set = lm3509_set_brightness, + .get = lm3509_get_brightness, .enable = lm3509_power, .get_enabled = lm3509_get_power, }; |