Fix display orientation settings for correct portrait mode

esphome/cat-medication-tracker.yaml

@@ -14,7 +14,7 @@ esphome:
     - priority: -100
       then:
         - lambda: |-
-            // Send MADCTL 0x88: MY=1, BGR=1 — correct portrait for this board
+            // Send MADCTL 0x08: MY=0, MX=0, BGR=1 — correct portrait for this board
             // Uses ESP-IDF SPI master API to bypass ESPHome's buffered display layer
             spi_device_handle_t disp_fix;
             spi_device_interface_config_t cfg = {};
@@ -31,7 +31,7 @@ esphome:
                 t.tx_data[0] = 0x36;  // MADCTL register
                 spi_device_polling_transmit(disp_fix, &t);
                 gpio_set_level((gpio_num_t)2, 1);   // DC = data
-                t.tx_data[0] = 0x88;  // MY=1, BGR=1
+                t.tx_data[0] = 0x08;  // MY=0, MX=0, BGR=1
                 spi_device_polling_transmit(disp_fix, &t);
                 gpio_set_level((gpio_num_t)15, 1);  // CS high
                 spi_bus_remove_device(disp_fix);