usb: typec: displayport: Move the Configuration VDO helpers to the header

The helpers used for reading and writing the pin assignment
from and to the Configuration VDO will be useful in GPU
drivers, and also UCSI driver after DisplayPort alt mode
support is added to it.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/typec/altmodes/displayport.c

@@ -24,10 +24,6 @@ enum {
 	DP_CONF_DUAL_D,
 };
 
-/* Helper for setting/getting the pin assignement value to the configuration */
-#define DP_CONF_SET_PIN_ASSIGN(_a_)	((_a_) << 8)
-#define DP_CONF_GET_PIN_ASSIGN(_conf_)	(((_conf_) & GENMASK(15, 8)) >> 8)
-
 /* Pin assignments that use USB3.1 Gen2 signaling to carry DP protocol */
 #define DP_PIN_ASSIGN_GEN2_BR_MASK	(BIT(DP_PIN_ASSIGN_A) | \
 					 BIT(DP_PIN_ASSIGN_B))

include/linux/usb/typec_dp.h

@@ -92,4 +92,8 @@ enum {
 #define DP_CONF_PIN_ASSIGNEMENT_SHIFT	8
 #define DP_CONF_PIN_ASSIGNEMENT_MASK	GENMASK(15, 8)
 
+/* Helper for setting/getting the pin assignement value to the configuration */
+#define DP_CONF_SET_PIN_ASSIGN(_a_)	((_a_) << 8)
+#define DP_CONF_GET_PIN_ASSIGN(_conf_)	(((_conf_) & GENMASK(15, 8)) >> 8)
+
 #endif /* __USB_TYPEC_DP_H */