1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * mux/consumer.h - definitions for the multiplexer consumer interface 4 * 5 * Copyright (C) 2017 Axentia Technologies AB 6 * 7 * Author: Peter Rosin <[email protected]> 8 */ 9 10 #ifndef _LINUX_MUX_CONSUMER_H 11 #define _LINUX_MUX_CONSUMER_H 12 13 #include <linux/compiler.h> 14 15 struct device; 16 struct mux_control; 17 18 unsigned int mux_control_states(struct mux_control *mux); 19 int __must_check mux_control_select_delay(struct mux_control *mux, 20 unsigned int state, 21 unsigned int delay_us); 22 int __must_check mux_control_try_select_delay(struct mux_control *mux, 23 unsigned int state, 24 unsigned int delay_us); 25 26 static inline int __must_check mux_control_select(struct mux_control *mux, 27 unsigned int state) 28 { 29 return mux_control_select_delay(mux, state, 0); 30 } 31 32 static inline int __must_check mux_control_try_select(struct mux_control *mux, 33 unsigned int state) 34 { 35 return mux_control_try_select_delay(mux, state, 0); 36 } 37 38 int mux_control_deselect(struct mux_control *mux); 39 40 struct mux_control *mux_control_get(struct device *dev, const char *mux_name); 41 void mux_control_put(struct mux_control *mux); 42 43 struct mux_control *devm_mux_control_get(struct device *dev, 44 const char *mux_name); 45 46 #endif /* _LINUX_MUX_CONSUMER_H */ 47