pinctrl: intel: Embed struct pingroup into struct intel_pingroup

Add a new member to the struct intel_pingroup to cover generic
pin control group parameters. The idea is to convert all users
(one-by-one) to it and drop old members later on.

Signed-off-by: Andy Shevchenko <[e-mail]>
Acked-by: Mika Westerberg <[e-mail]>

drivers/pinctrl/intel/pinctrl-intel.h

···
  * @name: Name of the groups
  * @pins: All pins in this group
  * @npins: Number of pins in this groups
- * @mode: Native mode in which the group is muxed out @pins. Used if @modes
- *        is %NULL.
+ * @grp: Generic data of the pin group (name and pins)
+ * @mode: Native mode in which the group is muxed out @pins. Used if @modes is %NULL.
  * @modes: If not %NULL this will hold mode for each pin in @pins
  */
 struct intel_pingroup {
 	const char *name;
 	const unsigned int *pins;
 	size_t npins;
+	struct pingroup grp;
 	unsigned short mode;
 	const unsigned int *modes;
 };
···
  *     a single integer or an array of integers in which case mode is per
  *     pin.
  */
-#define PIN_GROUP(n, p, m)					\
-	{							\
+#define PIN_GROUP(n, p, m)								\
+	{										\
 		.name = (n),					\
 		.pins = (p),					\
 		.npins = ARRAY_SIZE((p)),			\
-		.mode = __builtin_choose_expr(			\
-			__builtin_constant_p((m)), (m), 0),	\
-		.modes = __builtin_choose_expr(			\
-			__builtin_constant_p((m)), NULL, (m)),	\
+		.grp = PINCTRL_PINGROUP((n), (p), ARRAY_SIZE((p))),			\
+		.mode = __builtin_choose_expr(__builtin_constant_p((m)), (m), 0),	\
+		.modes = __builtin_choose_expr(__builtin_constant_p((m)), NULL, (m)),	\
 	}
 
 #define FUNCTION(n, g)				\