From 21d4d510896babdcaa7d1972ff7be056e6d7d6ef Mon Sep 17 00:00:00 2001
From: penglei <1624952103@qq.com>
Date: Fri, 21 Nov 2025 14:34:42 +0800
Subject: [PATCH] =?utf8?q?=E4=BC=98=E5=8C=96=E9=9B=B7=E9=B8=9F=E8=83=8C?=
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---
 .../power_manager/src/actions/display_action.c   |  8 +++++---
 .../power_manager/src/power_display_service.c    | 15 +++++++++------
 code/sdk/zhihui/utils/custom_utils.c             | 16 +++++++++++++++-
 3 files changed, 29 insertions(+), 10 deletions(-)

diff --git a/code/sdk/application/wearable/ln/service/power_manager/src/actions/display_action.c b/code/sdk/application/wearable/ln/service/power_manager/src/actions/display_action.c
index db48adb9e..bb829f8ce 100644
--- a/code/sdk/application/wearable/ln/service/power_manager/src/actions/display_action.c
+++ b/code/sdk/application/wearable/ln/service/power_manager/src/actions/display_action.c
@@ -153,14 +153,16 @@ static uint32_t action_display_lcd_on()
             POWER_DISPLAY_PRINT_ERR(0, "drv vau resume error ret=%x\r\n", ret);
             return ERRCODE_FAIL;
         }
-#if defined(CUSTOM_UTILS) && defined(BOARD_LEINIAO)
-        uapi_lcd_backlight_on();
-#endif
+
         ret = uapi_lcd_init();
         if (ret != 0 && ret != EXT_ERR_MIPI_ALREADY_INIT) {
             POWER_DISPLAY_PRINT_ERR(0, "LCD init error ret=%x\r\n", ret);
             return ERRCODE_FAIL;
         }
+
+#if defined(CUSTOM_UTILS) && defined(BOARD_LEINIAO)
+        uapi_lcd_backlight_on();
+#endif
     }
 #if defined(ENABLE_UIKIT) || defined(ENABLE_LVGL)
     NotifyScreenOn(); // Instruct the uikit to start the display operation.
diff --git a/code/sdk/application/wearable/ln/service/power_manager/src/power_display_service.c b/code/sdk/application/wearable/ln/service/power_manager/src/power_display_service.c
index 19b9d2ba7..b6b50376f 100644
--- a/code/sdk/application/wearable/ln/service/power_manager/src/power_display_service.c
+++ b/code/sdk/application/wearable/ln/service/power_manager/src/power_display_service.c
@@ -94,9 +94,6 @@ static errcode_t power_display_msg_write(uint32_t msg_id, uint8_t *msg, uint16_t
 
 static errcode_t power_display_turn_on_screen(void)
 {
-#if defined(CUSTOM_UTILS) && defined(BOARD_LEINIAO)
-    uapi_lcd_backlight_on();
-#endif
 #ifndef SUPPORT_OHOSFWK
     message_type_t mt = TURN_ON_SCREEN_CMD;
     uint32_t event_info = 0;
@@ -107,14 +104,15 @@ static errcode_t power_display_turn_on_screen(void)
 #else
     PostGraphicEvent(power_display_turnon_handle_ext, NULL);
 #endif
+
+#if defined(CUSTOM_UTILS) && defined(BOARD_LEINIAO)
+    uapi_lcd_backlight_on();
+#endif
     return ERRCODE_SUCC;
 }
 
 static errcode_t power_display_turn_off_screen(void)
 {
-#if defined(CUSTOM_UTILS) && defined(BOARD_LEINIAO)
-    uapi_lcd_backlight_off();
-#endif
 #ifndef SUPPORT_OHOSFWK
     message_type_t mt = TURN_OFF_SCREEN_CMD;
     uint32_t event_info = 0;
@@ -125,6 +123,11 @@ static errcode_t power_display_turn_off_screen(void)
 #else
     PostGraphicEvent(power_display_turnoff_handle_ext, NULL);
 #endif
+
+#if defined(CUSTOM_UTILS) && defined(BOARD_LEINIAO)
+    uapi_lcd_backlight_off();
+#endif
+
     return ERRCODE_SUCC;
 }
 
diff --git a/code/sdk/zhihui/utils/custom_utils.c b/code/sdk/zhihui/utils/custom_utils.c
index 1435c6945..ada64f275 100644
--- a/code/sdk/zhihui/utils/custom_utils.c
+++ b/code/sdk/zhihui/utils/custom_utils.c
@@ -4633,10 +4633,17 @@ void uapi_get_lcd_id(uint32_t *id)
     }
 }
 
+static uint8_t backlight_status = 0;
 #define LCD_BACKLIGHT_PWM_PIN       S_AGPIO_L16    /* 背光PWM引脚 */
 
 void uapi_lcd_backlight_off(void)
 {
+
+    if(backlight_status == 0)
+        return;
+
+    backlight_status = 0;
+
     uapi_pin_set_mode(LCD_BACKLIGHT_PWM_PIN, HAL_PIO_FUNC_GPIO);
     uapi_gpio_set_dir(LCD_BACKLIGHT_PWM_PIN, GPIO_DIRECTION_OUTPUT);
     uapi_gpio_set_val(LCD_BACKLIGHT_PWM_PIN, GPIO_LEVEL_LOW);
@@ -4646,7 +4653,14 @@ void uapi_lcd_backlight_off(void)
 
 void uapi_lcd_backlight_on(void)
 {
-    uint8_t brightness = 100;
+
+    if(backlight_status == 1)
+        return;
+
+    backlight_status = 1;
+
+
+    uint8_t brightness = 5;
 
     brightness = cm_getScreenBrightness();
     printf("brightness:%d\n",brightness);
-- 
2.17.1