diff --git a/cpu/esp32/periph/gpio_ll.c b/cpu/esp32/periph/gpio_ll.c
index 93146c1d05a14..81a5e22d1fe01 100644
--- a/cpu/esp32/periph/gpio_ll.c
+++ b/cpu/esp32/periph/gpio_ll.c
@@ -24,9 +24,7 @@
 #include <assert.h>
 #include <errno.h>
 #include <stdbool.h>
-#include <string.h>
 
-#include "log.h"
 #include "irq.h"
 #include "periph/gpio_ll.h"
 
@@ -39,8 +37,9 @@
 #include "esp_idf_api/gpio.h"
 
 #ifdef MODULE_FMT
-#include "fmt.h"
+#  include "fmt.h"
 #else
+#  include <stdio.h>
 static inline void print_str(const char *str)
 {
     fputs(str, stdout);
diff --git a/cpu/gd32v/periph/gpio_ll.c b/cpu/gd32v/periph/gpio_ll.c
index 8a59b1df64c41..d1d5bf203405f 100644
--- a/cpu/gd32v/periph/gpio_ll.c
+++ b/cpu/gd32v/periph/gpio_ll.c
@@ -28,8 +28,9 @@
 #include "debug.h"
 
 #ifdef MODULE_FMT
-#include "fmt.h"
+#  include "fmt.h"
 #else
+#  include <stdio.h>
 static inline void print_str(const char *str)
 {
     fputs(str, stdout);
diff --git a/cpu/nrf5x_common/periph/gpio_ll.c b/cpu/nrf5x_common/periph/gpio_ll.c
index c556f8ac921b5..5035a1a0793c1 100644
--- a/cpu/nrf5x_common/periph/gpio_ll.c
+++ b/cpu/nrf5x_common/periph/gpio_ll.c
@@ -37,8 +37,9 @@
 #include "periph_conf.h"
 
 #ifdef MODULE_FMT
-#include "fmt.h"
+#  include "fmt.h"
 #else
+#  include <stdio.h>
 static inline void print_str(const char *str)
 {
     fputs(str, stdout);
diff --git a/cpu/sam0_common/periph/gpio_ll.c b/cpu/sam0_common/periph/gpio_ll.c
index d375faeda9db7..f78d798fc974f 100644
--- a/cpu/sam0_common/periph/gpio_ll.c
+++ b/cpu/sam0_common/periph/gpio_ll.c
@@ -45,8 +45,9 @@
 #include "periph/gpio_ll.h"
 
 #ifdef MODULE_FMT
-#include "fmt.h"
+#  include "fmt.h"
 #else
+#  include <stdio.h>
 static inline void print_str(const char *str)
 {
     fputs(str, stdout);
diff --git a/cpu/stm32/periph/gpio_ll.c b/cpu/stm32/periph/gpio_ll.c
index ae2a8c8413c14..e4561fb813de3 100644
--- a/cpu/stm32/periph/gpio_ll.c
+++ b/cpu/stm32/periph/gpio_ll.c
@@ -34,8 +34,9 @@
 #include "periph/gpio_ll.h"
 
 #ifdef MODULE_FMT
-#include "fmt.h"
+#  include "fmt.h"
 #else
+#  include <stdio.h>
 static inline void print_str(const char *str)
 {
     fputs(str, stdout);
diff --git a/drivers/periph_common/gpio_ll.c b/drivers/periph_common/gpio_ll.c
index 30f3209bf01fe..82e2cadeafe4d 100644
--- a/drivers/periph_common/gpio_ll.c
+++ b/drivers/periph_common/gpio_ll.c
@@ -6,8 +6,6 @@
  * directory for more details.
  */
 
-#include <stdio.h>
-
 #include "periph/gpio_ll.h"
 
 /* Optimizing for low stack usage by not using printf(), which on newlib is
@@ -19,8 +17,9 @@
  * printf().
  */
 #ifdef MODULE_FMT
-#include "fmt.h"
+#  include "fmt.h"
 #else
+#  include <stdio.h>
 static inline void print_str(const char *str)
 {
     fputs(str, stdout);