3  * mux/driver.h - definitions for the multiplexer driver interface
13 #include <dt-bindings/mux/mux.h>
22  * struct mux_control_ops -	Mux controller operations for a mux chip.
23  * @set:			Set the state of the given mux controller.
26 	int (*set)(struct mux_control *mux, int state);
30  * struct mux_control -	Represents a mux controller.
31  * @lock:		Protects the mux controller state.
32  * @chip:		The mux chip that is handling this mux controller.
33  * @cached_state:	The current mux controller state, or -1 if none.
34  * @states:		The number of mux controller states.
35  * @idle_state:		The mux controller state to use when inactive, or one
39  * Mux drivers may only change @states and @idle_state, and may only do so
40  * between allocation and registration of the mux controller. Specifically,
41  * @cached_state is internal to the mux core and should never be written by
42  * mux drivers.
45 	struct semaphore lock; /* protects the state of the mux */
57  * struct mux_chip -	Represents a chip holding mux controllers.
58  * @controllers:	Number of mux controllers handled by the chip.
59  * @mux:		Array of mux controllers that are handled.
62  * @ops:		Mux controller operations.
66 	struct mux_control *mux;  member
77  * @mux_chip: The mux-chip to get the private memory from.
83 	return &mux_chip->mux[mux_chip->controllers];  in mux_chip_priv()
98  * mux_control_get_index() - Get the index of the given mux controller
99  * @mux: The mux-control to get the index for.
101  * Return: The index of the mux controller within the mux chip the mux
104 static inline unsigned int mux_control_get_index(struct mux_control *mux)  in mux_control_get_index()  argument
106 	return mux - mux->chip->mux;  in mux_control_get_index()