[PATCH RFT] leds: lp8788: Fix updating scale configuration bits

[Axel Lin <axel.lin@gmail.com>]

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>
---
Hi Milo,
Current code of updating scale configuration bits looks wrong to me
because the mask does not match the val.
I don't have this hardware, can you test this patch?

Thanks,
Axel
 drivers/leds/leds-lp8788.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/leds/leds-lp8788.c b/drivers/leds/leds-lp8788.c
index 53bd136..0ade6eb 100644
--- 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;
-- 
1.7.9.5