Lines Matching refs:mux
90 controllers * sizeof(*mux_chip->mux) + in mux_chip_alloc()
95 mux_chip->mux = (struct mux_control *)(mux_chip + 1); in mux_chip_alloc()
114 struct mux_control *mux = &mux_chip->mux[i]; in mux_chip_alloc() local
116 mux->chip = mux_chip; in mux_chip_alloc()
117 sema_init(&mux->lock, 1); in mux_chip_alloc()
118 mux->cached_state = MUX_CACHE_UNKNOWN; in mux_chip_alloc()
119 mux->idle_state = MUX_IDLE_AS_IS; in mux_chip_alloc()
120 mux->last_change = ktime_get(); in mux_chip_alloc()
129 static int mux_control_set(struct mux_control *mux, int state) in mux_control_set() argument
131 int ret = mux->chip->ops->set(mux, state); in mux_control_set()
133 mux->cached_state = ret < 0 ? MUX_CACHE_UNKNOWN : state; in mux_control_set()
135 mux->last_change = ktime_get(); in mux_control_set()
157 struct mux_control *mux = &mux_chip->mux[i]; in mux_chip_register() local
159 if (mux->idle_state == mux->cached_state) in mux_chip_register()
162 ret = mux_control_set(mux, mux->idle_state); in mux_chip_register()
291 unsigned int mux_control_states(struct mux_control *mux) in mux_control_states() argument
293 return mux->states; in mux_control_states()
300 static int __mux_control_select(struct mux_control *mux, int state) in __mux_control_select() argument
304 if (WARN_ON(state < 0 || state >= mux->states)) in __mux_control_select()
307 if (mux->cached_state == state) in __mux_control_select()
310 ret = mux_control_set(mux, state); in __mux_control_select()
315 if (mux->idle_state != MUX_IDLE_AS_IS) in __mux_control_select()
316 mux_control_set(mux, mux->idle_state); in __mux_control_select()
321 static void mux_control_delay(struct mux_control *mux, unsigned int delay_us) in mux_control_delay() argument
329 delayend = ktime_add_us(mux->last_change, delay_us); in mux_control_delay()
353 int mux_control_select_delay(struct mux_control *mux, unsigned int state, in mux_control_select_delay() argument
358 ret = down_killable(&mux->lock); in mux_control_select_delay()
362 ret = __mux_control_select(mux, state); in mux_control_select_delay()
364 mux_control_delay(mux, delay_us); in mux_control_select_delay()
367 up(&mux->lock); in mux_control_select_delay()
389 int mux_control_try_select_delay(struct mux_control *mux, unsigned int state, in mux_control_try_select_delay() argument
394 if (down_trylock(&mux->lock)) in mux_control_try_select_delay()
397 ret = __mux_control_select(mux, state); in mux_control_try_select_delay()
399 mux_control_delay(mux, delay_us); in mux_control_try_select_delay()
402 up(&mux->lock); in mux_control_try_select_delay()
420 int mux_control_deselect(struct mux_control *mux) in mux_control_deselect() argument
424 if (mux->idle_state != MUX_IDLE_AS_IS && in mux_control_deselect()
425 mux->idle_state != mux->cached_state) in mux_control_deselect()
426 ret = mux_control_set(mux, mux->idle_state); in mux_control_deselect()
428 up(&mux->lock); in mux_control_deselect()
503 return &mux_chip->mux[controller]; in mux_control_get()
513 void mux_control_put(struct mux_control *mux) in mux_control_put() argument
515 put_device(&mux->chip->dev); in mux_control_put()
521 struct mux_control *mux = *(struct mux_control **)res; in devm_mux_control_release() local
523 mux_control_put(mux); in devm_mux_control_release()
537 struct mux_control **ptr, *mux; in devm_mux_control_get() local
543 mux = mux_control_get(dev, mux_name); in devm_mux_control_get()
544 if (IS_ERR(mux)) { in devm_mux_control_get()
546 return mux; in devm_mux_control_get()
549 *ptr = mux; in devm_mux_control_get()
552 return mux; in devm_mux_control_get()