From b99a531f4f4aaeffd8994a66bb9ed57d33326c38 Mon Sep 17 00:00:00 2001
From: tanhua1 <tanhua1@lenovo.com>
Date: Tue, 14 Sep 2021 11:07:33 +0800
Subject: [PATCH] backlight: don't enable aw99703 backlight while brighness
 level 0

while brightness level 0 is set, needn't enable the aw99703
backlight driver.

Change-Id: I50edc50e8dd43bb0f0349dbf21e3b3dc08f11290
Signed-off-by: tanhua1 <tanhua1@lenovo.com>
Reviewed-on: https://gerrit.mot.com/2065839
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Yeqing Wang <wangyq13@motorola.com>
Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com>
Submit-Approved: Jira Key
---
 drivers/backlight/aw99703/leds_aw99703.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/backlight/aw99703/leds_aw99703.c b/drivers/backlight/aw99703/leds_aw99703.c
index 56428ee0f16c..f922cb0cdb87 100644
--- a/drivers/backlight/aw99703/leds_aw99703.c
+++ b/drivers/backlight/aw99703/leds_aw99703.c
@@ -338,6 +338,8 @@ int  aw99703_set_brightness(struct aw99703_data *drvdata, int brt_val)
 	pr_info("%s brt_val is %d\n", __func__, brt_val);
 
 	if (drvdata->enable == false) {
+		if(brt_val == 0)
+			return 0;
 		aw99703_backlight_init(drvdata);
 		aw99703_backlight_enable(drvdata);
 	}