diff --git a/Documentation/devicetree/bindings/mmc/mmci.txt b/Documentation/devicetree/bindings/mmc/mmci.txt
index 9bd2ffa704a7..2c8756fb7755 100644
--- a/Documentation/devicetree/bindings/mmc/mmci.txt
+++ b/Documentation/devicetree/bindings/mmc/mmci.txt
@@ -24,6 +24,7 @@ Optional properties:
 - st,sig-dir-dat31       : bus signal direction pin used for DAT[3] and DAT[1].
 - st,sig-dir-dat74       : bus signal direction pin used for DAT[4] to DAT[7].
 - st,sig-dir-cmd         : cmd signal direction pin used for CMD.
+- st,sig-pin-fbclk       : feedback clock signal pin used.
 
 Example:
 
@@ -47,6 +48,7 @@ sdi0_per1@80126000 {
 	st,sig-dir-dat0;
 	st,sig-dir-dat2;
 	st,sig-dir-cmd;
+	st,sig-pin-fbclk;
 
 	vmmc-supply = <&ab8500_ldo_aux3_reg>;
 	vqmmc-supply = <&vmmci>;
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index aa26e810b7ad..2ce9111c4627 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1402,6 +1402,8 @@ static void mmci_dt_populate_generic_pdata(struct device_node *np,
 		pdata->sigdir |= MCI_ST_DATA74DIREN;
 	if (of_get_property(np, "st,sig-dir-cmd", NULL))
 		pdata->sigdir |= MCI_ST_CMDDIREN;
+	if (of_get_property(np, "st,sig-pin-fbclk", NULL))
+		pdata->sigdir |= MCI_ST_FBCLKEN;
 
 	pdata->gpio_wp = of_get_named_gpio(np, "wp-gpios", 0);
 	pdata->gpio_cd = of_get_named_gpio(np, "cd-gpios", 0);