gergoplex: small cleanup (#16928)

keyboards/gboards/gergoplex/gergoplex.h

@@ -21,8 +21,8 @@
 
 extern i2c_status_t mcp23018_status;
 #define I2C_TIMEOUT 1000
-#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
-#define CPU_16MHz 0x00
+
+#define XXX KC_NO
 
 // I2C aliases and register addresses (see "mcp23018.md")
 #define I2C_ADDR 0x20  // 0b0100000
@@ -41,16 +41,15 @@ uint8_t init_mcp23018(void);
     L10, L11, L12, L13, L14,        R10, R11, R12, R13, R14, \
     L20, L21, L22, L23, L24,        R20, R21, R22, R23, R24, \
                 L30, L31, L32,    R30, R31, R32 \
-    ) \
-    { \
-        {L04, L14, L24, KC_NO}, \
+) { \
+    { L04, L14, L24, XXX }, \
     { L03, L13, L23, L32 }, \
     { L02, L12, L22, L31 }, \
     { L01, L11, L21, L30 }, \
-        {L00, L10, L20, KC_NO}, \
-        {R00, R10, R20, KC_NO}, \
+    { L00, L10, L20, XXX }, \
+    { R00, R10, R20, XXX }, \
     { R01, R11, R21, R30 }, \
     { R02, R12, R22, R31 }, \
     { R03, R13, R23, R32 }, \
-        {R04, R14, R24, KC_NO}, \
+    { R04, R14, R24, XXX } \
 }

keyboards/gboards/gergoplex/rules.mk

@@ -1,15 +1,23 @@
+# MCU name
 MCU = atmega32u4
 
+# Bootloader selection
 BOOTLOADER = atmel-dfu
 
-CUSTOM_MATRIX    = yes
-MOUSEKEY_ENABLE  = yes  # Mouse keys
-COMBO_ENABLE     = yes
-EXTRAKEY_ENABLE  = yes
-CONSOLE_ENABLE   = no
-NKRO_ENABLE = yes           # Enable N-Key Rollover
-COMMAND_ENABLE   = yes
+# Build Options
+#   change yes to no to disable
+#
 BOOTMAGIC_ENABLE = yes      # Enable Bootmagic Lite
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = yes        # Commands for debug and configuration
+NKRO_ENABLE = yes           # Enable N-Key Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output
+COMBO_ENABLE = yes
+CUSTOM_MATRIX = yes
 
 LAYOUTS = split_3x5_3