leds: qpnp-flash-v2: Modify current code calculation
Currently, the code calculated for a desired target current and
IRES is rounded up since DIV_ROUND_UP is used in the calculation.
With a higher IRES (12.5 mA), code can be configured to a higher
value. Fix this by using DIV_ROUND_CLOSEST so that the optimal
code can be obtained.
Change-Id: I51c1b15fff3ff2a23cb256f2ae1d341f5271adf2
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>
diff --git a/drivers/leds/leds-qpnp-flash-v2.c b/drivers/leds/leds-qpnp-flash-v2.c
index d4b64ba..759d853 100644
--- a/drivers/leds/leds-qpnp-flash-v2.c
+++ b/drivers/leds/leds-qpnp-flash-v2.c
@@ -353,7 +353,7 @@
if (!ires_ua || !target_curr_ma || (target_curr_ma < (ires_ua / 1000)))
return 0;
- return DIV_ROUND_UP(target_curr_ma * 1000, ires_ua) - 1;
+ return DIV_ROUND_CLOSEST(target_curr_ma * 1000, ires_ua) - 1;
}
static int qpnp_flash_led_read(struct qpnp_flash_led *led, u16 addr, u8 *data)