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-rw-r--r--drivers/pinctrl/pinctrl-single.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index c2f807bf3..2b50030ad 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -703,7 +703,7 @@ static int pcs_allocate_pin_table(struct pcs_device *pcs)
mux_bytes = pcs->width / BITS_PER_BYTE;
- if (pcs->bits_per_mux) {
+ if (pcs->bits_per_mux && pcs->fmask) {
pcs->bits_per_pin = fls(pcs->fmask);
nr_pins = (pcs->size * BITS_PER_BYTE) / pcs->bits_per_pin;
num_pins_in_register = pcs->width / pcs->bits_per_pin;