forked from mirrors/linux
84564481bc
In some cases, we might need to provide the state of the mux to be set for the operation of a given peripheral. Therefore, pass this information using mux-states property. Link: https://lore.kernel.org/lkml/20211123081222.27979-1-a-govindraju@ti.com Signed-off-by: Aswath Govindraju <a-govindraju@ti.com> Signed-off-by: Peter Rosin <peda@axentia.se> (minor edits) Link: https://lore.kernel.org/r/aac25be8-9515-a980-f7cb-709938c84822@axentia.se Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* mux/consumer.h - definitions for the multiplexer consumer interface
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*
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* Copyright (C) 2017 Axentia Technologies AB
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*
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* Author: Peter Rosin <peda@axentia.se>
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*/
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#ifndef _LINUX_MUX_CONSUMER_H
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#define _LINUX_MUX_CONSUMER_H
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#include <linux/compiler.h>
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struct device;
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struct mux_control;
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struct mux_state;
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unsigned int mux_control_states(struct mux_control *mux);
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int __must_check mux_control_select_delay(struct mux_control *mux,
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unsigned int state,
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unsigned int delay_us);
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int __must_check mux_state_select_delay(struct mux_state *mstate,
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unsigned int delay_us);
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int __must_check mux_control_try_select_delay(struct mux_control *mux,
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unsigned int state,
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unsigned int delay_us);
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int __must_check mux_state_try_select_delay(struct mux_state *mstate,
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unsigned int delay_us);
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static inline int __must_check mux_control_select(struct mux_control *mux,
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unsigned int state)
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{
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return mux_control_select_delay(mux, state, 0);
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}
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static inline int __must_check mux_state_select(struct mux_state *mstate)
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{
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return mux_state_select_delay(mstate, 0);
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}
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static inline int __must_check mux_control_try_select(struct mux_control *mux,
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unsigned int state)
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{
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return mux_control_try_select_delay(mux, state, 0);
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}
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static inline int __must_check mux_state_try_select(struct mux_state *mstate)
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{
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return mux_state_try_select_delay(mstate, 0);
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}
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int mux_control_deselect(struct mux_control *mux);
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int mux_state_deselect(struct mux_state *mstate);
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struct mux_control *mux_control_get(struct device *dev, const char *mux_name);
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void mux_control_put(struct mux_control *mux);
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struct mux_control *devm_mux_control_get(struct device *dev,
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const char *mux_name);
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struct mux_state *devm_mux_state_get(struct device *dev,
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const char *mux_name);
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#endif /* _LINUX_MUX_CONSUMER_H */
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