Add parsing for the "mux" string in the 'connection-type' pin property
mapping it to DPLL_PIN_TYPE_MUX.

Recognizing this type in the driver allows these pins to be taken as
parent pins for pin-on-pin pins coming from different modules (e.g.
network drivers).

Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
---
 drivers/dpll/zl3073x/prop.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/dpll/zl3073x/prop.c b/drivers/dpll/zl3073x/prop.c
index 4ed153087570b..ad1f099cbe2b5 100644
--- a/drivers/dpll/zl3073x/prop.c
+++ b/drivers/dpll/zl3073x/prop.c
@@ -249,6 +249,8 @@ struct zl3073x_pin_props *zl3073x_pin_props_get(struct zl3073x_dev *zldev,
 			props->dpll_props.type = DPLL_PIN_TYPE_INT_OSCILLATOR;
 		else if (!strcmp(type, "synce"))
 			props->dpll_props.type = DPLL_PIN_TYPE_SYNCE_ETH_PORT;
+		else if (!strcmp(type, "mux"))
+			props->dpll_props.type = DPLL_PIN_TYPE_MUX;
 		else
 			dev_warn(zldev->dev,
 				 "Unknown or unsupported pin type '%s'\n",
-- 
2.52.0