diff --git a/drivers/mmc/core/slot-gpio.c b/drivers/mmc/core/slot-gpio.c
index 12247219e1c25..5fd4558163931 100644
--- a/drivers/mmc/core/slot-gpio.c
+++ b/drivers/mmc/core/slot-gpio.c
@@ -159,18 +159,6 @@ int mmc_gpio_set_cd_wake(struct mmc_host *host, bool on)
 }
 EXPORT_SYMBOL(mmc_gpio_set_cd_wake);
 
-/* Register an alternate interrupt service routine for
- * the card-detect GPIO.
- */
-void mmc_gpio_set_cd_isr(struct mmc_host *host, irq_handler_t isr)
-{
-	struct mmc_gpio *ctx = host->slot.handler_priv;
-
-	WARN_ON(ctx->cd_gpio_isr);
-	ctx->cd_gpio_isr = isr;
-}
-EXPORT_SYMBOL(mmc_gpio_set_cd_isr);
-
 /**
  * mmc_gpiod_request_cd - request a gpio descriptor for card-detection
  * @host: mmc host
diff --git a/include/linux/mmc/slot-gpio.h b/include/linux/mmc/slot-gpio.h
index 274a2767ea492..1ed7b0d1e4f92 100644
--- a/include/linux/mmc/slot-gpio.h
+++ b/include/linux/mmc/slot-gpio.h
@@ -22,7 +22,6 @@ int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id,
 int mmc_gpiod_request_ro(struct mmc_host *host, const char *con_id,
 			 unsigned int idx, unsigned int debounce);
 int mmc_gpiod_set_cd_config(struct mmc_host *host, unsigned long config);
-void mmc_gpio_set_cd_isr(struct mmc_host *host, irq_handler_t isr);
 int mmc_gpio_set_cd_wake(struct mmc_host *host, bool on);
 void mmc_gpiod_request_cd_irq(struct mmc_host *host);
 bool mmc_can_gpio_cd(struct mmc_host *host);