leds: lp8788: Fix updating scale configuration bits

We need to do left shift (cfg->num + LP8788_ISINK_SCALE_OFFSET) bits for
updating scale configuration.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Tested-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>

diff --git a/drivers/leds/leds-lp8788.c b/drivers/leds/leds-lp8788.c
index 53bd136..0ade6eb 100644 (file)
--- a/drivers/leds/leds-lp8788.c
+++ b/drivers/leds/leds-lp8788.c
@@ -63,7 +63,7 @@ static int lp8788_led_init_device(struct lp8788_led *led,
        /* scale configuration */
        addr = LP8788_ISINK_CTRL;
        mask = 1 << (cfg->num + LP8788_ISINK_SCALE_OFFSET);
-       val = cfg->scale << cfg->num;
+       val = cfg->scale << (cfg->num + LP8788_ISINK_SCALE_OFFSET);
        ret = lp8788_update_bits(led->lp, addr, mask, val);
        if (ret)
                return ret;