Fix display orientation and update MADCTL settings for correct portrait mode

esphome/cat-medication-tracker.yaml

@@ -6,9 +6,25 @@ esphome:
   name: ${name}
   friendly_name: ${friendly_name}
   on_boot:
-    priority: 100
-    then:
-      - light.turn_on: backlight
+    - priority: 100
+      then:
+        - light.turn_on: backlight
+    - priority: -100
+      then:
+        - lambda: |-
+            // Send MADCTL 0x88: MY=1, BGR=1 — correct portrait for this board
+            // Uses raw HSPI to bypass ESPHome's buffered display layer
+            SPIClass spi2(HSPI);
+            spi2.begin(14, 12, 13, -1);  // SCK, MISO, MOSI, SS
+            spi2.beginTransaction(SPISettings(1000000, MSBFIRST, SPI_MODE0));
+            digitalWrite(15, LOW);   // CS assert
+            digitalWrite(2, LOW);    // DC = command
+            spi2.transfer(0x36);     // MADCTL register
+            digitalWrite(2, HIGH);   // DC = data
+            spi2.transfer(0x88);     // MY=1, BGR=1: correct vertical, no horizontal mirror
+            digitalWrite(15, HIGH);  // CS deassert
+            spi2.endTransaction();
+        - component.update: my_display
 
 esp32:
   board: esp32dev
@@ -62,7 +78,7 @@ display:
     cs_pin: GPIO15
     dc_pin: GPIO2
     reset_pin: GPIO4
-    rotation: 180
+    rotation: 0
     invert_colors: false
     color_order: bgr
     data_rate: 10MHz