Fix board inits

ports/atmel-samd/boards/hallowing_m0_express/board.c

@@ -69,7 +69,7 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     busio_spi_obj_t *spi = common_hal_board_create_spi(0);
     common_hal_busio_spi_never_reset(spi);
@@ -82,7 +82,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/atmel-samd/boards/hallowing_m4_express/board.c

@@ -47,11 +47,11 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_PA01, &pin_PA00, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -62,7 +62,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/atmel-samd/boards/monster_m4sk/board.c

@@ -48,11 +48,11 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_PA13, &pin_PA12, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -63,7 +63,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/atmel-samd/boards/openbook_m4/board.c

@@ -57,11 +57,11 @@ uint8_t refresh_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_PB13, &pin_PB15, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -72,7 +72,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_epaperdisplay_obj_t *display = &displays[0].epaper_display;
+    displayio_epaperdisplay_obj_t *display = &allocate_display()->epaper_display;
     display->base.type = &displayio_epaperdisplay_type;
     common_hal_displayio_epaperdisplay_construct(display,
         bus,

ports/atmel-samd/boards/pewpew_lcd/board.c

@@ -46,11 +46,11 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_PA23, &pin_PA22, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -61,7 +61,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/atmel-samd/boards/pewpew_m4/board.c

@@ -97,11 +97,11 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_PA13, &pin_PA15, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -115,7 +115,7 @@ void board_init(void) {
     uint32_t cfg0 = lookupCfg(CFG_DISPLAY_CFG0, 0x000000);
     uint32_t offX = (cfg0 >> 8) & 0xff;
     uint32_t offY = (cfg0 >> 16) & 0xff;
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/atmel-samd/boards/pybadge/board.c

@@ -68,11 +68,11 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_PB13, &pin_PB15, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -83,7 +83,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/atmel-samd/boards/pygamer/board.c

@@ -70,11 +70,11 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_PB13, &pin_PB15, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -85,7 +85,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/atmel-samd/boards/pyportal/board.c

@@ -61,7 +61,7 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    paralleldisplay_parallelbus_obj_t *bus = &displays[0].parallel_bus;
+    paralleldisplay_parallelbus_obj_t *bus = &allocate_display_bus()->parallel_bus;
     bus->base.type = &paralleldisplay_parallelbus_type;
     common_hal_paralleldisplay_parallelbus_construct(bus,
         &pin_PA16, // Data0
@@ -72,7 +72,7 @@ void board_init(void) {
         &pin_PA00, // Reset
         0); // Frequency
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/atmel-samd/boards/pyportal_titano/board.c

@@ -78,7 +78,7 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    paralleldisplay_parallelbus_obj_t *bus = &displays[0].parallel_bus;
+    paralleldisplay_parallelbus_obj_t *bus = &allocate_display_bus()->parallel_bus;
     bus->base.type = &paralleldisplay_parallelbus_type;
     common_hal_paralleldisplay_parallelbus_construct(bus,
         &pin_PA16, // Data0
@@ -89,7 +89,7 @@ void board_init(void) {
         &pin_PA00, // Reset
         0); // Frequency
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/atmel-samd/boards/seeeduino_wio_terminal/board.c

@@ -65,11 +65,11 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_PB20, &pin_PB19, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -80,7 +80,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/atmel-samd/boards/ugame10/board.c

@@ -70,7 +70,7 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     busio_spi_obj_t *spi = common_hal_board_create_spi(0);
     common_hal_displayio_fourwire_construct(bus,
@@ -82,7 +82,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/broadcom/boards/diodes_delight_piunora/board.c

@@ -36,7 +36,7 @@ void board_init(void) {
     fb->base.type = &videocore_framebuffer_type;
     common_hal_videocore_framebuffer_construct(fb, 640, 480);
 
-    framebufferio_framebufferdisplay_obj_t *display = &displays[0].framebuffer_display;
+    framebufferio_framebufferdisplay_obj_t *display = &allocate_display()->framebuffer_display;
     display->base.type = &framebufferio_framebufferdisplay_type;
     common_hal_framebufferio_framebufferdisplay_construct(
         display,

ports/broadcom/boards/raspberrypi_cm4/board.c

@@ -36,7 +36,7 @@ void board_init(void) {
     fb->base.type = &videocore_framebuffer_type;
     common_hal_videocore_framebuffer_construct(fb, 640, 480);
 
-    framebufferio_framebufferdisplay_obj_t *display = &displays[0].framebuffer_display;
+    framebufferio_framebufferdisplay_obj_t *display = &allocate_display()->framebuffer_display;
     display->base.type = &framebufferio_framebufferdisplay_type;
     common_hal_framebufferio_framebufferdisplay_construct(
         display,

ports/broadcom/boards/raspberrypi_cm4io/board.c

@@ -36,7 +36,7 @@ void board_init(void) {
     fb->base.type = &videocore_framebuffer_type;
     common_hal_videocore_framebuffer_construct(fb, 640, 480);
 
-    framebufferio_framebufferdisplay_obj_t *display = &displays[0].framebuffer_display;
+    framebufferio_framebufferdisplay_obj_t *display = &allocate_display()->framebuffer_display;
     display->base.type = &framebufferio_framebufferdisplay_type;
     common_hal_framebufferio_framebufferdisplay_construct(
         display,

ports/broadcom/boards/raspberrypi_pi4b/board.c

@@ -36,7 +36,7 @@ void board_init(void) {
     fb->base.type = &videocore_framebuffer_type;
     common_hal_videocore_framebuffer_construct(fb, 640, 480);
 
-    framebufferio_framebufferdisplay_obj_t *display = &displays[0].framebuffer_display;
+    framebufferio_framebufferdisplay_obj_t *display = &allocate_display()->framebuffer_display;
     display->base.type = &framebufferio_framebufferdisplay_type;
     common_hal_framebufferio_framebufferdisplay_construct(
         display,

ports/broadcom/boards/raspberrypi_zero/board.c

@@ -36,7 +36,7 @@ void board_init(void) {
     fb->base.type = &videocore_framebuffer_type;
     common_hal_videocore_framebuffer_construct(fb, 640, 480);
 
-    framebufferio_framebufferdisplay_obj_t *display = &displays[0].framebuffer_display;
+    framebufferio_framebufferdisplay_obj_t *display = &allocate_display()->framebuffer_display;
     display->base.type = &framebufferio_framebufferdisplay_type;
     common_hal_framebufferio_framebufferdisplay_construct(
         display,

ports/broadcom/boards/raspberrypi_zero2w/board.c

@@ -36,7 +36,7 @@ void board_init(void) {
     fb->base.type = &videocore_framebuffer_type;
     common_hal_videocore_framebuffer_construct(fb, 640, 480);
 
-    framebufferio_framebufferdisplay_obj_t *display = &displays[0].framebuffer_display;
+    framebufferio_framebufferdisplay_obj_t *display = &allocate_display()->framebuffer_display;
     display->base.type = &framebufferio_framebufferdisplay_type;
     common_hal_framebufferio_framebufferdisplay_construct(
         display,

ports/broadcom/boards/raspberrypi_zero_w/board.c

@@ -36,7 +36,7 @@ void board_init(void) {
     fb->base.type = &videocore_framebuffer_type;
     common_hal_videocore_framebuffer_construct(fb, 640, 480);
 
-    framebufferio_framebufferdisplay_obj_t *display = &displays[0].framebuffer_display;
+    framebufferio_framebufferdisplay_obj_t *display = &allocate_display()->framebuffer_display;
     display->base.type = &framebufferio_framebufferdisplay_type;
     common_hal_framebufferio_framebufferdisplay_construct(
         display,

ports/espressif/boards/01space_lcd042_esp32c3/board.c

@@ -55,11 +55,11 @@ void board_init(void) {
     busio_i2c_obj_t *i2c = common_hal_board_create_i2c(0);
 
     // What we would do if it wasn't the shared board I2C: (for reference)
-    // busio_i2c_obj_t *i2c = &displays[0].i2cdisplay_bus.inline_bus;
+    // busio_i2c_obj_t *i2c = &allocate_display_bus()->i2cdisplay_bus.inline_bus;
     // common_hal_busio_i2c_construct(i2c, &pin_GPIO23, &pin_GPIO22, 100000, 0);
     // common_hal_busio_i2c_never_reset(i2c);
 
-    displayio_i2cdisplay_obj_t *bus = &displays[0].i2cdisplay_bus;
+    displayio_i2cdisplay_obj_t *bus = &allocate_display_bus()->i2cdisplay_bus;
     bus->base.type = &displayio_i2cdisplay_type;
     common_hal_displayio_i2cdisplay_construct(bus,
         i2c,
@@ -67,7 +67,7 @@ void board_init(void) {
         NULL
         );
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/espressif/boards/adafruit_esp32s2_camera/board.c

@@ -52,7 +52,7 @@ uint8_t display_init_sequence[] = {
 
 void board_init(void) {
     busio_spi_obj_t *spi = common_hal_board_create_spi(0);
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -63,7 +63,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(
         display,

ports/espressif/boards/adafruit_feather_esp32s2_reverse_tft/board.c

@@ -72,7 +72,7 @@ uint8_t display_init_sequence[] = {
 
 void board_init(void) {
     busio_spi_obj_t *spi = common_hal_board_create_spi(0);
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
 
     common_hal_displayio_fourwire_construct(
@@ -85,7 +85,7 @@ void board_init(void) {
         0,              // polarity
         0               // phase
         );
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
 
     common_hal_displayio_display_construct(

ports/espressif/boards/adafruit_feather_esp32s2_tft/board.c

@@ -72,7 +72,7 @@ uint8_t display_init_sequence[] = {
 
 void board_init(void) {
     busio_spi_obj_t *spi = common_hal_board_create_spi(0);
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
 
     common_hal_displayio_fourwire_construct(
@@ -85,7 +85,7 @@ void board_init(void) {
         0,              // polarity
         0               // phase
         );
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
 
     common_hal_displayio_display_construct(

ports/espressif/boards/adafruit_feather_esp32s3_reverse_tft/board.c

@@ -72,7 +72,7 @@ uint8_t display_init_sequence[] = {
 
 void board_init(void) {
     busio_spi_obj_t *spi = common_hal_board_create_spi(0);
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
 
     common_hal_displayio_fourwire_construct(
@@ -85,7 +85,7 @@ void board_init(void) {
         0,              // polarity
         0               // phase
         );
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
 
     common_hal_displayio_display_construct(

ports/espressif/boards/adafruit_feather_esp32s3_tft/board.c

@@ -72,7 +72,7 @@ uint8_t display_init_sequence[] = {
 
 void board_init(void) {
     busio_spi_obj_t *spi = common_hal_board_create_spi(0);
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
 
     common_hal_displayio_fourwire_construct(
@@ -85,7 +85,7 @@ void board_init(void) {
         0,              // polarity
         0               // phase
         );
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
 
     common_hal_displayio_display_construct(

ports/espressif/boards/adafruit_funhouse/board.c

@@ -56,11 +56,11 @@ void board_init(void) {
     common_hal_never_reset_pin(&pin_GPIO38);
     #endif /* DEBUG */
 
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_GPIO36, &pin_GPIO35, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -71,7 +71,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(
         display,

ports/espressif/boards/adafruit_magtag_2.9_grayscale/board.c

@@ -120,11 +120,11 @@ void board_init(void) {
     common_hal_never_reset_pin(&pin_GPIO44);
     #endif /* DEBUG */
 
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_GPIO36, &pin_GPIO35, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -135,7 +135,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_epaperdisplay_obj_t *display = &displays[0].epaper_display;
+    displayio_epaperdisplay_obj_t *display = &allocate_display()->epaper_display;
     display->base.type = &displayio_epaperdisplay_type;
     common_hal_displayio_epaperdisplay_construct(
         display,

ports/espressif/boards/espressif_esp32s3_box/board.c

@@ -43,11 +43,11 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_GPIO7, &pin_GPIO6, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -58,7 +58,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/espressif/boards/espressif_esp32s3_box_lite/board.c

@@ -44,11 +44,11 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_GPIO7, &pin_GPIO6, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -59,7 +59,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/espressif/boards/espressif_esp32s3_eye/board.c

@@ -71,7 +71,7 @@ uint8_t display_init_sequence[] = {
 
 void board_init(void) {
     busio_spi_obj_t *spi = common_hal_board_create_spi(0);
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
 
     common_hal_displayio_fourwire_construct(
@@ -84,7 +84,7 @@ void board_init(void) {
         0,              // polarity
         0               // phase
         );
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
 
     common_hal_displayio_display_construct(

ports/espressif/boards/espressif_esp32s3_usb_otg_n8/board.c

@@ -71,11 +71,11 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_GPIO6, &pin_GPIO7, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -86,7 +86,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/espressif/boards/hardkernel_odroid_go/board.c

@@ -63,11 +63,11 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_GPIO18, &pin_GPIO23, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -78,7 +78,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/espressif/boards/hexky_s2/board.c

@@ -72,7 +72,7 @@ uint8_t display_init_sequence[] = {
 
 void board_init(void) {
     busio_spi_obj_t *spi = common_hal_board_create_spi(0);
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
 
     common_hal_displayio_fourwire_construct(
@@ -85,7 +85,7 @@ void board_init(void) {
         0,              // polarity
         0               // phase
         );
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
 
     common_hal_displayio_display_construct(

ports/espressif/boards/hiibot_iots2/board.c

@@ -65,7 +65,8 @@ uint8_t display_init_sequence[] = {
 };
 
 static void display_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
 
     common_hal_busio_spi_construct(
         spi,
@@ -76,7 +77,6 @@ static void display_init(void) {
 
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
 
     common_hal_displayio_fourwire_construct(
@@ -90,7 +90,7 @@ static void display_init(void) {
         0               // phase
         );
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
 
     common_hal_displayio_display_construct(

ports/espressif/boards/lilygo_tembed_esp32s3/board.c

@@ -43,11 +43,11 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_GPIO12, &pin_GPIO11, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -58,7 +58,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/espressif/boards/lilygo_ttgo_t8_s2_st7789/board.c

@@ -65,7 +65,8 @@ uint8_t display_init_sequence[] = {
 };
 
 static void display_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
 
     common_hal_busio_spi_construct(
         spi,
@@ -76,7 +77,6 @@ static void display_init(void) {
 
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
 
     common_hal_displayio_fourwire_construct(
@@ -90,7 +90,7 @@ static void display_init(void) {
         0               // phase
         );
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
 
     common_hal_displayio_display_construct(

ports/espressif/boards/lilygo_ttgo_tdisplay_esp32_16m/board.c

@@ -45,7 +45,8 @@ uint8_t display_init_sequence[] = {
 };
 
 static void display_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
 
     common_hal_busio_spi_construct(
         spi,
@@ -56,7 +57,6 @@ static void display_init(void) {
 
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
 
     common_hal_displayio_fourwire_construct(
@@ -71,7 +71,7 @@ static void display_init(void) {
         0               // phase
         );
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
 
     common_hal_displayio_display_construct(

ports/espressif/boards/lilygo_twatch_2020_v3/board.c

@@ -48,7 +48,8 @@ uint8_t display_init_sequence[] = {
 };
 
 static void display_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
 
     common_hal_busio_spi_construct(
         spi,
@@ -60,7 +61,6 @@ static void display_init(void) {
 
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
 
     common_hal_displayio_fourwire_construct(
@@ -74,7 +74,7 @@ static void display_init(void) {
         0               // phase
         );
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
 
     common_hal_displayio_display_construct(

ports/espressif/boards/lolin_s2_pico/board.c

@@ -54,7 +54,7 @@ uint8_t display_init_sequence[] = { // SSD1306
 static void display_init(void) {
     busio_i2c_obj_t *i2c = common_hal_board_create_i2c(0);
 
-    displayio_i2cdisplay_obj_t *bus = &displays[0].i2cdisplay_bus;
+    displayio_i2cdisplay_obj_t *bus = &allocate_display_bus()->i2cdisplay_bus;
     bus->base.type = &displayio_i2cdisplay_type;
     common_hal_displayio_i2cdisplay_construct(bus,
         i2c,
@@ -62,7 +62,7 @@ static void display_init(void) {
         &pin_GPIO18 // reset
         );
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/espressif/boards/m5stack_core2/board.c

@@ -333,7 +333,7 @@ static bool pmic_init(busio_i2c_obj_t *i2c) {
 
 static bool display_init(void) {
     busio_spi_obj_t *spi = common_hal_board_create_spi(0);
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
 
     common_hal_displayio_fourwire_construct(
@@ -347,7 +347,7 @@ static bool display_init(void) {
         0               // phase
         );
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
 
     common_hal_displayio_display_construct(

ports/espressif/boards/m5stack_core_basic/board.c

@@ -57,7 +57,7 @@ uint8_t display_init_sequence[] = {
 
 void board_init(void) {
     busio_spi_obj_t *spi = common_hal_board_create_spi(0);
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
 
     common_hal_displayio_fourwire_construct(
@@ -71,7 +71,7 @@ void board_init(void) {
         0               // phase
         );
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
 
     common_hal_displayio_display_construct(

ports/espressif/boards/m5stack_core_fire/board.c

@@ -57,7 +57,7 @@ uint8_t display_init_sequence[] = {
 
 void board_init(void) {
     busio_spi_obj_t *spi = common_hal_board_create_spi(0);
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
 
     common_hal_displayio_fourwire_construct(
@@ -71,7 +71,7 @@ void board_init(void) {
         0               // phase
         );
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
 
     common_hal_displayio_display_construct(

ports/espressif/boards/m5stack_stick_c/board.c

@@ -165,11 +165,11 @@ static bool pmic_init(busio_i2c_obj_t *i2c) {
 }
 
 static bool display_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_GPIO13, &pin_GPIO15, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
 
     common_hal_displayio_fourwire_construct(
@@ -183,7 +183,7 @@ static bool display_init(void) {
         0               // phase
         );
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
 
     common_hal_displayio_display_construct(

ports/espressif/boards/morpheans_morphesp-240/board.c

@@ -147,7 +147,8 @@ void board_init(void) {
 
     // Display
 
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
 
     common_hal_busio_spi_construct(
         spi,
@@ -158,7 +159,6 @@ void board_init(void) {
 
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
 
     common_hal_displayio_fourwire_construct(
@@ -172,7 +172,7 @@ void board_init(void) {
         0               // phase
         );
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(
         display,

ports/espressif/boards/waveshare_esp32_s2_pico_lcd/board.c

@@ -64,7 +64,8 @@ uint8_t display_init_sequence[] = {
 };
 
 static void display_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
 
     common_hal_busio_spi_construct(
         spi,
@@ -75,7 +76,6 @@ static void display_init(void) {
 
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
 
     common_hal_displayio_fourwire_construct(
@@ -89,7 +89,7 @@ static void display_init(void) {
         0               // phase
         );
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
 
     common_hal_displayio_display_construct(

ports/nrf/boards/clue_nrf52840_express/board.c

@@ -47,11 +47,11 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_P0_14, &pin_P0_15, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -62,7 +62,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/nrf/boards/hiibot_bluefi/board.c

@@ -47,11 +47,11 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_P0_07, &pin_P1_08, NULL, false); // SCK, MOSI, MISO, not half-duplex
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -63,7 +63,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/nrf/boards/makerdiary_nrf52840_m2_devkit/board.c

@@ -48,11 +48,11 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_P0_11, &pin_P0_12, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -63,7 +63,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/nrf/boards/ohs2020_badge/board.c

@@ -47,11 +47,11 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_P0_11, &pin_P0_12, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -62,7 +62,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/raspberrypi/boards/adafruit_feather_rp2040_dvi/board.c

@@ -40,7 +40,7 @@ void board_init(void) {
         &pin_GPIO23, &pin_GPIO22,
         8);
 
-    framebufferio_framebufferdisplay_obj_t *display = &displays[0].framebuffer_display;
+    framebufferio_framebufferdisplay_obj_t *display = &allocate_display()->framebuffer_display;
     display->base.type = &framebufferio_framebufferdisplay_type;
     common_hal_framebufferio_framebufferdisplay_construct(
         display,

ports/raspberrypi/boards/adafruit_macropad_rp2040/board.c

@@ -59,11 +59,11 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_GPIO26, &pin_GPIO27, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -74,7 +74,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/raspberrypi/boards/hack_club_sprig/board.c

@@ -78,11 +78,11 @@ uint8_t display_init_sequence[] = {
 
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_GPIO18, &pin_GPIO19, &pin_GPIO16, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -93,7 +93,7 @@ void board_init(void) {
         0,
         0);
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/raspberrypi/boards/pimoroni_badger2040/board.c

@@ -274,12 +274,12 @@ void board_init(void) {
     common_hal_digitalio_digitalinout_never_reset(&enable_pin_obj);
 
     // Set up the SPI object used to control the display
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_GPIO18, &pin_GPIO19, &pin_GPIO16, false);
     common_hal_busio_spi_never_reset(spi);
 
     // Set up the DisplayIO pin object
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -291,7 +291,7 @@ void board_init(void) {
         0); // Phase
 
     // Set up the DisplayIO epaper object
-    displayio_epaperdisplay_obj_t *display = &displays[0].epaper_display;
+    displayio_epaperdisplay_obj_t *display = &allocate_display()->epaper_display;
     display->base.type = &displayio_epaperdisplay_type;
     common_hal_displayio_epaperdisplay_construct(
         display,
@@ -329,10 +329,8 @@ void board_init(void) {
 void board_deinit(void) {
     displayio_epaperdisplay_obj_t *display = &displays[0].epaper_display;
     if (display->base.type == &displayio_epaperdisplay_type) {
-        size_t i = 0;
         while (common_hal_displayio_epaperdisplay_get_busy(display)) {
             RUN_BACKGROUND_TASKS;
-            i++;
         }
     }
     common_hal_displayio_release_displays();

ports/raspberrypi/boards/pimoroni_picosystem/board.c

@@ -64,11 +64,11 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(spi, &pin_GPIO6, &pin_GPIO7, NULL, false);
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     common_hal_displayio_fourwire_construct(bus,
         spi,
@@ -79,7 +79,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,

ports/raspberrypi/boards/waveshare_rp2040_lcd_0_96/board.c

@@ -63,7 +63,8 @@ uint8_t display_init_sequence[] = {
 };
 
 static void display_init(void) {
-    busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
     common_hal_busio_spi_construct(
         spi,
         &pin_GPIO10,    // CLK
@@ -74,7 +75,6 @@ static void display_init(void) {
 
     common_hal_busio_spi_never_reset(spi);
 
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
 
     common_hal_displayio_fourwire_construct(
@@ -88,7 +88,7 @@ static void display_init(void) {
         0               // phase
         );
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(
         display,

ports/stm/boards/meowbit_v121/board.c

@@ -70,7 +70,7 @@ uint8_t display_init_sequence[] = {
 };
 
 void board_init(void) {
-    displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
     bus->base.type = &displayio_fourwire_type;
     busio_spi_obj_t *internal_spi = &supervisor_flash_spi_bus;
     common_hal_displayio_fourwire_construct(bus,
@@ -82,7 +82,7 @@ void board_init(void) {
         0, // Polarity
         0); // Phase
 
-    displayio_display_obj_t *display = &displays[0].display;
+    displayio_display_obj_t *display = &allocate_display()->display;
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,