Fix & clean up tronguylabs/m122_3270 (#13684)

keyboards/tronguylabs/m122_3270/blackpill/config.h

@@ -16,8 +16,6 @@
 
 #pragma once
 
-// place overrides below
-
 // Blackpill pin assignments: reversed the rows from the Teensy version for easier PCB layout
 // DO NOT USE the following pins: A9 (has pulldown on it), A11/A12 (USB lines), B2 (external pulldown)
 // C13 has an LED, and C13/C14/C15 are best used as inputs (with DIODE_DIRECTION set to ROW2COL, the
@@ -26,4 +24,4 @@
 #define MATRIX_ROW_PINS { C13, C14, C15, A0, A1, A2, A3, A4 }
 
 // The BlackPill version is version 2
-#define DEVICE_VER      0x0002
+#define DEVICE_VER 0x0002

keyboards/tronguylabs/m122_3270/blackpill/readme.md

@@ -1,2 +1,3 @@
 # BlackPill controller for m122-3270
+
 This directory contains the BlackPill-specific definitions for the M122-3270 keyboard.

keyboards/tronguylabs/m122_3270/blackpill/rules.mk

@@ -1,7 +1,22 @@
-# Overrides for the Blackpill version
-
 # MCU name
 MCU = STM32F411
 
 # Bootloader selection
 BOOTLOADER = stm32-dfu
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = yes        # Console for debug
+COMMAND_ENABLE = yes        # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = yes           # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+BLUETOOTH_ENABLE = no       # Enable Bluetooth
+AUDIO_ENABLE = no           # Audio output