Move device code from main.cpp to earlyInitVariant (#9438)

variants/esp32s3/tlora-pager/platformio.ini

@@ -17,6 +17,10 @@ board_check = true
 board_build.partitions = default_16MB.csv
 upload_protocol = esptool
 
+build_src_filter =
+  ${esp32s3_base.build_src_filter}
+  +<../variants/esp32s3/tlora-pager>
+
 build_flags = ${esp32s3_base.build_flags} 
   -I variants/esp32s3/tlora-pager
   -D T_LORA_PAGER 

variants/esp32s3/tlora-pager/variant.cpp

@@ -0,0 +1,31 @@
+#include "variant.h"
+#include "ExtensionIOXL9555.hpp"
+extern ExtensionIOXL9555 io;
+
+void earlyInitVariant()
+{
+    pinMode(LORA_CS, OUTPUT);
+    digitalWrite(LORA_CS, HIGH);
+    pinMode(SDCARD_CS, OUTPUT);
+    digitalWrite(SDCARD_CS, HIGH);
+    pinMode(TFT_CS, OUTPUT);
+    digitalWrite(TFT_CS, HIGH);
+    pinMode(KB_INT, INPUT_PULLUP);
+    // io expander
+    io.begin(Wire, XL9555_SLAVE_ADDRESS0, SDA, SCL);
+    io.pinMode(EXPANDS_DRV_EN, OUTPUT);
+    io.digitalWrite(EXPANDS_DRV_EN, HIGH);
+    io.pinMode(EXPANDS_AMP_EN, OUTPUT);
+    io.digitalWrite(EXPANDS_AMP_EN, LOW);
+    io.pinMode(EXPANDS_LORA_EN, OUTPUT);
+    io.digitalWrite(EXPANDS_LORA_EN, HIGH);
+    io.pinMode(EXPANDS_GPS_EN, OUTPUT);
+    io.digitalWrite(EXPANDS_GPS_EN, HIGH);
+    io.pinMode(EXPANDS_KB_EN, OUTPUT);
+    io.digitalWrite(EXPANDS_KB_EN, HIGH);
+    io.pinMode(EXPANDS_SD_EN, OUTPUT);
+    io.digitalWrite(EXPANDS_SD_EN, HIGH);
+    io.pinMode(EXPANDS_GPIO_EN, OUTPUT);
+    io.digitalWrite(EXPANDS_GPIO_EN, HIGH);
+    io.pinMode(EXPANDS_SD_PULLEN, INPUT);
+}