升级到v2版本屏幕无法驱动，一直显示白屏 #1282
Description
1. 老版本正常驱动的配置：
#define DISPLAY_BACKLIGHT_PIN GPIO_NUM_15
#define DISPLAY_MOSI_PIN GPIO_NUM_18
#define DISPLAY_CLK_PIN GPIO_NUM_8
#define DISPLAY_DC_PIN GPIO_NUM_16
#define DISPLAY_RST_PIN GPIO_NUM_17
#define DISPLAY_CS_PIN GPIO_NUM_2
#ifdef CONFIG_LCD_ST7789_240X240_7PIN
#define LCD_TYPE_ST7789_SERIAL
#define DISPLAY_WIDTH 240
#define DISPLAY_HEIGHT 240
#define DISPLAY_MIRROR_X false
#define DISPLAY_MIRROR_Y false
#define DISPLAY_SWAP_XY false
#define DISPLAY_INVERT_COLOR true
#define DISPLAY_RGB_ORDER LCD_RGB_ELEMENT_ORDER_RGB
#define DISPLAY_OFFSET_X 0
#define DISPLAY_OFFSET_Y 0
#define DISPLAY_BACKLIGHT_OUTPUT_INVERT false
#define DISPLAY_SPI_MODE 3
#endif2. 新版本升级后，同样配置编译通过，配网聊天等功能正常，屏幕一直白屏：
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调试日志如下：
I (195) main_task: Calling app_main()
I (215) Board: UUID=8ebf087c-f6db-4033-af39-d054ba5681ba SKU=amour-k08
I (215) gpio: GPIO[0]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0
I (225) button: IoT Button Version: 4.1.4
I (225) gpio: GPIO[9]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0
I (235) gpio: GPIO[21]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0
I (245) gpio: GPIO[14]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0
I (255) gpio: GPIO[16]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0
I (265) gpio: GPIO[17]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0
I (385) Display: Power management not supported
I (435) LcdDisplay: Turning display on
I (435) LcdDisplay: Initialize LVGL library
I (435) LcdDisplay: Use 2MB of PSRAM for image cache
I (435) LcdDisplay: Initialize LVGL port
I (435) LcdDisplay: Adding LCD display
I (435) LVGL: Starting LVGL task
I (445) gpio: GPIO[18]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0
I (455) MCP: Add tool: self.lamp.get_state
I (455) MCP: Add tool: self.lamp.turn_on
I (455) MCP: Add tool: self.lamp.turn_off
I (465) Backlight: Set brightness to 50
I (465) Application: STATE: starting
I (475) NoAudioCodec: Simplex channels created
I (475) AudioCodec: Set input enable to true
I (475) AudioCodec: Set output enable to true
I (485) AudioCodec: Audio codec started
I (485) pp: pp rom version: e7ae62f
I (485) net80211: net80211 rom version: e7ae62f
I (505) wifi:wifi driver task: 3fcba9b0, prio:23, stack:6144, core=0 -
追踪代码到 SpiLcdDisplay 初始化里：
// draw white
std::vector<uint16_t> buffer(width_, 0xFFFF);
for (int y = 0; y < height_; y++) {
esp_lcd_panel_draw_bitmap(panel_, 0, y, width_, y + 1, buffer.data());
}更改0xFFFF颜色后屏幕有颜色变化，后续 SetupUI(); 初始化的ui都没有显示到屏幕上。通过按键调试修改屏幕亮度也都能正常，问题应该出现在LVGL推送数据到屏幕这块