3 files changed, 8 insertions, 28 deletions
diff --git a/keyboards/crkbd/keymaps/rs/config.h b/keyboards/crkbd/keymaps/rs/config.h
index a2d5092dee..60f33e7585 100644
--- a/keyboards/crkbd/keymaps/rs/config.h
+++ b/keyboards/crkbd/keymaps/rs/config.h
@@ -28,8 +28,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 // #define MASTER_RIGHT
 // #define EE_HANDS
 
-// #define SSD1306OLED
-
 #define USE_SERIAL_PD2
 
 #define TAPPING_FORCE_HOLD
diff --git a/keyboards/crkbd/keymaps/rs/oled.c b/keyboards/crkbd/keymaps/rs/oled.c
index bd8ae7d299..a4c71daac2 100644
--- a/keyboards/crkbd/keymaps/rs/oled.c
+++ b/keyboards/crkbd/keymaps/rs/oled.c
@@ -1,13 +1,10 @@
-#ifdef SSD1306OLED
+#ifdef OLED_ENABLE
 #include QMK_KEYBOARD_H
-#include "ssd1306.h"
 #ifdef PROTOCOL_LUFA
 #include "lufa.h"
 #include "split_util.h"
 #endif
 
-extern uint8_t is_master;
-
 // When add source files to SRC in rules.mk, you can use functions.
 const char *read_logo(void);
 const char *read_keylog(void);
@@ -47,7 +44,6 @@ void update_keymap_status(void) {
 #endif
 
 void matrix_init_user(void) {
-  iota_gfx_init(!has_usb()); // turns on the display
   update_keymap_status();
 }
 
@@ -74,31 +70,18 @@ layer_state_t layer_state_set_user(layer_state_t state) {
 }
 
 static inline void render_keymap_status(struct CharacterMatrix *matrix) {
-  matrix_write(matrix, layer_status_buf);
+  oled_write(layer_status_buf);
 }
 
-void matrix_render_user(struct CharacterMatrix *matrix) {
-  if (is_master) {
+bool oled_task_user(void) {
+  if (is_keyboard_master()) {
     render_keymap_status(matrix);
-    matrix_write_ln(matrix, read_keylog());
-    matrix_write_ln(matrix, read_keylogs());
+    oled_write_ln(read_keylog(), false);
+    oled_write_ln(read_keylogs(), false);
   } else {
-    matrix_write(matrix, read_logo());
-  }
-}
-
-void matrix_update(struct CharacterMatrix *dest, const struct CharacterMatrix *source) {
-  if (memcmp(dest->display, source->display, sizeof(dest->display))) {
-    memcpy(dest->display, source->display, sizeof(dest->display));
-    dest->dirty = true;
+    oled_write(read_logo(), false);
   }
-}
-
-void iota_gfx_task_user(void) {
-  struct CharacterMatrix matrix;
-  matrix_clear(&matrix);
-  matrix_render_user(&matrix);
-  matrix_update(&display, &matrix);
+  return false;
 }
 
 #endif
diff --git a/keyboards/crkbd/keymaps/rs/rules.mk b/keyboards/crkbd/keymaps/rs/rules.mk
index c754ebdcbc..5a76c38f38 100644
--- a/keyboards/crkbd/keymaps/rs/rules.mk
+++ b/keyboards/crkbd/keymaps/rs/rules.mk
@@ -25,7 +25,6 @@ SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
 
 # If you want to change the display of OLED, you need to change here
 SRC +=  oled.c \
-        ./lib/glcdfont.c \
         ./lib/rgb_state_reader.c \
         ./lib/layer_state_reader.c \
         ./lib/logo_reader.c \