README: Update peripherals and display gpios helpers

README.md

@@ -12,6 +12,11 @@ For a ready to use ESP32 project take look at the [lv_port_esp32](https://github
 **NOTE:** You need to set the display horizontal and vertical size, color depth and
 swap of RGB565 color on the LVGL configuration menuconfig (it's not handled automatically).
 
+## MCU Configuration
+
+Example of SPI/I2C configuration peripherals is done with `lvgl_interface_init`.
+Example of display gpios configuration, such as the DC, RST, Backlight is done with `lvgl_display_gpios_init`
+
 
 ## Supported display controllers
 

examples/wemos_lolin_oled/hello_world/main/hello_world.c

@@ -54,7 +54,8 @@ static void guiTask(void *pvParameter)
     /* Initialize the needed peripherals */
     lvgl_interface_init();
     /* Initialize needed GPIOs, e.g. backlight, reset GPIOs */
-    display_bsp_init_io();
+    lvgl_display_gpios_init();
+
     /* ToDo Initialize used display driver passing registered lv_disp_drv_t as parameter */
 
     size_t display_buffer_size = lvgl_get_display_buffer_size();

lvgl_helpers.c

@@ -153,7 +153,7 @@ void lvgl_interface_init(void)
 #endif
 }
 
-void display_bsp_init_io(void)
+void lvgl_display_gpios_init(void)
 {
     esp_err_t err = ESP_OK;
     gpio_config_t io_conf = {

lvgl_helpers.h

@@ -41,7 +41,7 @@ bool lvgl_spi_driver_init(int host, int miso_pin, int mosi_pin, int sclk_pin,
     int max_transfer_sz, int dma_channel, int quadwp_pin, int quadhd_pin);
 
 /* Initialize display GPIOs, e.g. DC and RST pins */
-void display_bsp_init_io(void);
+void lvgl_display_gpios_init(void);
 
 /* Get display buffer size */
 size_t lvgl_get_display_buffer_size(void);