extern struct panel_spec lcd_nt51017_mipi_spec;
extern struct panel_spec lcd_hx8394d_mipi_spec;
+struct gpio_chip;
+
+extern void save_lcd_id_to_kernel(uint32_t id);
+extern int sprd_gpio_request(struct gpio_chip *chip, unsigned offset);
+extern int sprd_gpio_direction_output(struct gpio_chip *chip, unsigned offset, int value);
+extern void sprd_gpio_set(struct gpio_chip *chip, unsigned offset, int value);
+
void sprdfb_panel_remove(struct sprdfb_device *dev);
static ushort colormap[256];