diff --git a/CMakeLists.txt b/CMakeLists.txt
index b013003..14c29c2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -88,7 +88,7 @@ endif()
 
 idf_component_register(SRCS ${SOURCES}
                        INCLUDE_DIRS ${LVGL_INCLUDE_DIRS}
-                       REQUIRES lvgl)
+                       REQUIRES lvgl driver esp_common log freertos esp_rom soc)
 
 target_compile_definitions(${COMPONENT_LIB} PUBLIC "-DLV_LVGL_H_INCLUDE_SIMPLE")
 
diff --git a/lvgl_tft/esp_lcd_backlight.c b/lvgl_tft/esp_lcd_backlight.c
index f4395bd..2d74f36 100644
--- a/lvgl_tft/esp_lcd_backlight.c
+++ b/lvgl_tft/esp_lcd_backlight.c
@@ -8,10 +8,12 @@
  *********************/
 #include "esp_lcd_backlight.h"
 #include "driver/ledc.h"
-#include "driver/gpio.h"
+#include "rom/gpio.h"
 #include "esp_log.h"
 #include "soc/ledc_periph.h" // to invert LEDC output on IDF version < v4.3
 
+#define SIG_GPIO_OUT_IDX 128
+
 typedef struct {
     bool pwm_control; // true: LEDC is used, false: GPIO is used
     int index;        // Either GPIO or LEDC channel
@@ -49,7 +51,7 @@ disp_backlight_h disp_backlight_new(const disp_backlight_config_t *config)
         };
         const ledc_timer_config_t LCD_backlight_timer = {
             .speed_mode = LEDC_LOW_SPEED_MODE,
-            .bit_num = LEDC_TIMER_10_BIT,
+            .duty_resolution = LEDC_TIMER_10_BIT,
             .timer_num = config->timer_idx,
             .freq_hz = 5000,
             .clk_cfg = LEDC_AUTO_CLK};