89 			   controllers * sizeof(*mux_chip->mux) +  in mux_chip_alloc()
94 	mux_chip->mux = (struct mux_control *)(mux_chip + 1);  in mux_chip_alloc()
113 		struct mux_control *mux = &mux_chip->mux[i];  in mux_chip_alloc()  local
115 		mux->chip = mux_chip;  in mux_chip_alloc()
116 		sema_init(&mux->lock, 1);  in mux_chip_alloc()
117 		mux->cached_state = MUX_CACHE_UNKNOWN;  in mux_chip_alloc()
118 		mux->idle_state = MUX_IDLE_AS_IS;  in mux_chip_alloc()
127 static int mux_control_set(struct mux_control *mux, int state)  in mux_control_set()  argument
129 	int ret = mux->chip->ops->set(mux, state);  in mux_control_set()
131 	mux->cached_state = ret < 0 ? MUX_CACHE_UNKNOWN : state;  in mux_control_set()
153 		struct mux_control *mux = &mux_chip->mux[i];  in mux_chip_register()  local
155 		if (mux->idle_state == mux->cached_state)  in mux_chip_register()
158 		ret = mux_control_set(mux, mux->idle_state);  in mux_chip_register()
287 unsigned int mux_control_states(struct mux_control *mux)  in mux_control_states()  argument
289 	return mux->states;  in mux_control_states()
296 static int __mux_control_select(struct mux_control *mux, int state)  in __mux_control_select()  argument
300 	if (WARN_ON(state < 0 || state >= mux->states))  in __mux_control_select()
303 	if (mux->cached_state == state)  in __mux_control_select()
306 	ret = mux_control_set(mux, state);  in __mux_control_select()
311 	if (mux->idle_state != MUX_IDLE_AS_IS)  in __mux_control_select()
312 		mux_control_set(mux, mux->idle_state);  in __mux_control_select()
334 int mux_control_select(struct mux_control *mux, unsigned int state)  in mux_control_select()  argument
338 	ret = down_killable(&mux->lock);  in mux_control_select()
342 	ret = __mux_control_select(mux, state);  in mux_control_select()
345 		up(&mux->lock);  in mux_control_select()
366 int mux_control_try_select(struct mux_control *mux, unsigned int state)  in mux_control_try_select()  argument
370 	if (down_trylock(&mux->lock))  in mux_control_try_select()
373 	ret = __mux_control_select(mux, state);  in mux_control_try_select()
376 		up(&mux->lock);  in mux_control_try_select()
394 int mux_control_deselect(struct mux_control *mux)  in mux_control_deselect()  argument
398 	if (mux->idle_state != MUX_IDLE_AS_IS &&  in mux_control_deselect()
399 	    mux->idle_state != mux->cached_state)  in mux_control_deselect()
400 		ret = mux_control_set(mux, mux->idle_state);  in mux_control_deselect()
402 	up(&mux->lock);  in mux_control_deselect()
477 	return &mux_chip->mux[controller];  in mux_control_get()
487 void mux_control_put(struct mux_control *mux)  in mux_control_put()  argument
489 	put_device(&mux->chip->dev);  in mux_control_put()
495 	struct mux_control *mux = *(struct mux_control **)res;  in devm_mux_control_release()  local
497 	mux_control_put(mux);  in devm_mux_control_release()
511 	struct mux_control **ptr, *mux;  in devm_mux_control_get()  local
517 	mux = mux_control_get(dev, mux_name);  in devm_mux_control_get()
518 	if (IS_ERR(mux)) {  in devm_mux_control_get()
520 		return mux;  in devm_mux_control_get()
523 	*ptr = mux;  in devm_mux_control_get()
526 	return mux;  in devm_mux_control_get()