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Commit 07b04723 authored by Subbaraman Narayanamurthy's avatar Subbaraman Narayanamurthy Committed by Gerrit - the friendly Code Review server
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leds: qpnp-wled: Cap the lower limit of brightness level 



As per the hardware documentation, operating limits of WLED is
from 0.4% to 100%. Cap the lower limit to 0.4% to ensure proper
operation.

Change-Id: I7ee2684ea2186d4fdda5cea9a4d421b429a6d4fd
Signed-off-by: default avatarSubbaraman Narayanamurthy <subbaram@codeaurora.org>
parent a5665f16

drivers/leds/leds-qpnp-wled.c

+5 −0
Original line number Original line Diff line number Diff line
@@ -537,6 +537,11 @@ static int qpnp_wled_set_level(struct qpnp_wled *wled, int level) 
{

{

	int i, rc;

	int i, rc;

	u8 reg;

	u8 reg;

	u16 low_limit = WLED_MAX_LEVEL_4095 * 4 / 1000;



	/* WLED's lower limit of operation is 0.4% */

	if (level > 0 && level < low_limit)

		level = low_limit;





	/* set brightness registers */

	/* set brightness registers */

	for (i = 0; i < wled->max_strings; i++) {

	for (i = 0; i < wled->max_strings; i++) {