diff --git a/drivers/dht/dht.c b/drivers/dht/dht.c
index 437e7ae4c0..cd57be636b 100644
--- a/drivers/dht/dht.c
+++ b/drivers/dht/dht.c
@@ -74,7 +74,7 @@ static void _wait_for_level(gpio_t pin, bool expected, uint32_t start)
     /* Calls to ztimer_now() can be relatively slow on low end platforms.
      * Mixing in a busy down-counting loop solves issues e.g. on AVR boards. */
     uint8_t pre_timeout = 0;
-    while (((bool)gpio_read(pin) != expected) && (++pre_timeout
+    while ((gpio_read(pin) != expected) && (++pre_timeout
         || ztimer_now(ZTIMER_USEC) < start + SPIN_TIMEOUT)) {}
 }
 
diff --git a/drivers/epd_bw_spi/epd_bw_spi.c b/drivers/epd_bw_spi/epd_bw_spi.c
index d5ff4bb371..c343a2d421 100644
--- a/drivers/epd_bw_spi/epd_bw_spi.c
+++ b/drivers/epd_bw_spi/epd_bw_spi.c
@@ -30,7 +30,7 @@ static void epd_bw_spi_cmd_start(epd_bw_spi_params_t *p, uint8_t cmd, bool cont)
 {
     DEBUG("[epd_bw_spi] cmd_start: command 0x%02x\n", cmd);
     if (gpio_is_valid(p->busy_pin)) {
-        while ((bool)gpio_read(p->busy_pin) == p->busy_value) {}
+        while (gpio_read(p->busy_pin) == p->busy_value) {}
     }
     gpio_clear(p->dc_pin);
     spi_transfer_byte(p->spi, p->cs_pin, cont, (uint8_t)cmd);
@@ -52,7 +52,7 @@ static void epd_bw_spi_wait(epd_bw_spi_params_t *p, uint32_t msec)
 {
     if (gpio_is_valid(p->busy_pin)) {
         DEBUG("[epd_bw_spi] wait: for busy bin\n");
-        while ((bool)gpio_read(p->busy_pin) == p->busy_value) {}
+        while (gpio_read(p->busy_pin) == p->busy_value) {}
     }
     else {
         DEBUG("[epd_bw_spi] wait: for %" PRIu32 " milliseconds\n", msec);
diff --git a/drivers/lm75/lm75.c b/drivers/lm75/lm75.c
index 8a78251fe7..85e774cf3b 100644
--- a/drivers/lm75/lm75.c
+++ b/drivers/lm75/lm75.c
@@ -244,7 +244,7 @@ int lm75_get_os_pin(lm75_t *dev, bool *os_pin_state) {
         return LM75_ERROR;
     }
 
-    *os_pin_state = !!gpio_read(dev->lm75_params.gpio_alarm) == dev->lm75_params.polarity;
+    *os_pin_state = gpio_read(dev->lm75_params.gpio_alarm) == dev->lm75_params.polarity;
     return LM75_SUCCESS;
 }