[PATCH v3 1/6] pinctrl: Add pingroup and define PINCTRL_GRP

[Basavaraj Natikar <Basavaraj.Natikar@xxxxxxx>]

Add 'struct pingroup' to represent pingroup and 'PINCTRL_GRP' macro for
inline use. Both are used to manage and represent larger number
of pingroups.

Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@xxxxxxx>
---
 include/linux/pinctrl/pinctrl.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/include/linux/pinctrl/pinctrl.h b/include/linux/pinctrl/pinctrl.h
index 70b45d28e7a9..1bdffac6e7aa 100644
--- a/include/linux/pinctrl/pinctrl.h
+++ b/include/linux/pinctrl/pinctrl.h
@@ -26,6 +26,26 @@ struct pin_config_item;
 struct gpio_chip;
 struct device_node;
 
+/**
+ * struct pingroups - provides information on pingroup
+ * @name: a name for pingroup
+ * @pins: an array of pins in the pingroup
+ * @npins: number of pins in the pingroup
+ */
+struct pingroup {
+	const char *name;
+	const unsigned int *pins;
+	unsigned int npins;
+};
+
+/* Convenience macro to define a single named or anonymous pingroup */
+#define PINCTRL_GRP(_name, _pins, _npins)	\
+((struct pingroup) {				\
+	.name = _name,				\
+	.pins = _pins,				\
+	.npins = _npins,			\
+})
+
 /**
  * struct pinctrl_pin_desc - boards/machines provide information on their
  * pins, pads or other muxable units in this struct
-- 
2.25.1