Lines Matching +full:their +full:- +full:claim +full:- +full:gpios
1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2011-2012 ST-Ericsson SA
6 * Written on behalf of Linaro for ST-Ericsson
62 * pinctrl_provide_dummies() - indicate if pinctrl provides dummy state support
77 return pctldev->desc->name; in pinctrl_dev_get_name()
83 return dev_name(pctldev->dev); in pinctrl_dev_get_devname()
89 return pctldev->driver_data; in pinctrl_dev_get_drvdata()
94 * get_pinctrl_dev_from_devname() - look up pin controller device
110 if (!strcmp(dev_name(pctldev->dev), devname)) { in get_pinctrl_dev_from_devname()
129 if (device_match_of_node(pctldev->dev, np)) { in get_pinctrl_dev_from_of_node()
140 * pin_get_from_name() - look up a pin number from a name
149 for (i = 0; i < pctldev->desc->npins; i++) { in pin_get_from_name()
152 pin = pctldev->desc->pins[i].number; in pin_get_from_name()
155 if (desc && !strcmp(name, desc->name)) in pin_get_from_name()
159 return -EINVAL; in pin_get_from_name()
163 * pin_get_name() - look up a pin name from a pin id
173 dev_err(pctldev->dev, "failed to get pin(%d) name\n", in pin_get_name()
178 return desc->name; in pin_get_name()
192 pindesc = radix_tree_lookup(&pctldev->pin_desc_tree, in pinctrl_free_pindescs()
195 radix_tree_delete(&pctldev->pin_desc_tree, in pinctrl_free_pindescs()
197 if (pindesc->dynamic_name) in pinctrl_free_pindescs()
198 kfree(pindesc->name); in pinctrl_free_pindescs()
210 pindesc = pin_desc_get(pctldev, pin->number); in pinctrl_register_one_pin()
212 dev_err(pctldev->dev, "pin %d already registered\n", in pinctrl_register_one_pin()
213 pin->number); in pinctrl_register_one_pin()
214 return -EINVAL; in pinctrl_register_one_pin()
219 return -ENOMEM; in pinctrl_register_one_pin()
222 pindesc->pctldev = pctldev; in pinctrl_register_one_pin()
224 mutex_init(&pindesc->mux_lock); in pinctrl_register_one_pin()
228 if (pin->name) { in pinctrl_register_one_pin()
229 pindesc->name = pin->name; in pinctrl_register_one_pin()
231 pindesc->name = kasprintf(GFP_KERNEL, "PIN%u", pin->number); in pinctrl_register_one_pin()
232 if (!pindesc->name) { in pinctrl_register_one_pin()
233 error = -ENOMEM; in pinctrl_register_one_pin()
236 pindesc->dynamic_name = true; in pinctrl_register_one_pin()
239 pindesc->drv_data = pin->drv_data; in pinctrl_register_one_pin()
241 error = radix_tree_insert(&pctldev->pin_desc_tree, pin->number, pindesc); in pinctrl_register_one_pin()
246 pin->number, pindesc->name, pctldev->desc->name); in pinctrl_register_one_pin()
271 * gpio_to_pin() - GPIO range GPIO number to pin number translation
287 unsigned int pin = gc->base + offset - range->base; in gpio_to_pin()
288 if (range->pins) in gpio_to_pin()
289 return range->pins[pin]; in gpio_to_pin()
291 return range->pin_base + pin; in gpio_to_pin()
295 * pinctrl_match_gpio_range() - check if a certain GPIO pin is in range
309 mutex_lock(&pctldev->mutex); in pinctrl_match_gpio_range()
311 list_for_each_entry(range, &pctldev->gpio_ranges, node) { in pinctrl_match_gpio_range()
313 if ((gc->base + offset) >= range->base && in pinctrl_match_gpio_range()
314 (gc->base + offset) < range->base + range->npins) { in pinctrl_match_gpio_range()
315 mutex_unlock(&pctldev->mutex); in pinctrl_match_gpio_range()
319 mutex_unlock(&pctldev->mutex); in pinctrl_match_gpio_range()
324 * pinctrl_ready_for_gpio_range() - check if other GPIO pins of
332 * of the same GPIO chip don't have back-end pinctrl interface.
334 * certain GPIO pin doesn't have back-end pinctrl device. If the return value
349 mutex_lock(&pctldev->mutex); in pinctrl_ready_for_gpio_range()
350 list_for_each_entry(range, &pctldev->gpio_ranges, node) { in pinctrl_ready_for_gpio_range()
352 if (range->base + range->npins - 1 < gc->base || in pinctrl_ready_for_gpio_range()
353 range->base > gc->base + gc->ngpio - 1) in pinctrl_ready_for_gpio_range()
355 mutex_unlock(&pctldev->mutex); in pinctrl_ready_for_gpio_range()
359 mutex_unlock(&pctldev->mutex); in pinctrl_ready_for_gpio_range()
375 * pinctrl_get_device_gpio_range() - find device for GPIO range
383 * -EPROBE_DEFER if the GPIO range could not be found in any device since it
410 return -EPROBE_DEFER; in pinctrl_get_device_gpio_range()
414 * pinctrl_add_gpio_range() - register a GPIO range for a controller
422 * This adds a range of GPIOs to be handled by a certain pin controller. Call
428 mutex_lock(&pctldev->mutex); in pinctrl_add_gpio_range()
429 list_add_tail(&range->node, &pctldev->gpio_ranges); in pinctrl_add_gpio_range()
430 mutex_unlock(&pctldev->mutex); in pinctrl_add_gpio_range()
458 return ERR_PTR(-EPROBE_DEFER); in pinctrl_find_and_add_gpio_range()
469 const struct pinctrl_ops *pctlops = pctldev->desc->pctlops; in pinctrl_get_group_pins()
472 if (!pctlops->get_group_pins) in pinctrl_get_group_pins()
473 return -EINVAL; in pinctrl_get_group_pins()
479 return pctlops->get_group_pins(pctldev, gs, pins, num_pins); in pinctrl_get_group_pins()
490 list_for_each_entry(range, &pctldev->gpio_ranges, node) { in pinctrl_find_gpio_range_from_pin_nolock()
492 if (range->pins) { in pinctrl_find_gpio_range_from_pin_nolock()
494 for (a = 0; a < range->npins; a++) { in pinctrl_find_gpio_range_from_pin_nolock()
495 if (range->pins[a] == pin) in pinctrl_find_gpio_range_from_pin_nolock()
498 } else if (pin >= range->pin_base && in pinctrl_find_gpio_range_from_pin_nolock()
499 pin < range->pin_base + range->npins) in pinctrl_find_gpio_range_from_pin_nolock()
508 * pinctrl_find_gpio_range_from_pin() - locate the GPIO range for a pin
510 * @pin: a controller-local number to find the range for
518 mutex_lock(&pctldev->mutex); in pinctrl_find_gpio_range_from_pin()
520 mutex_unlock(&pctldev->mutex); in pinctrl_find_gpio_range_from_pin()
527 * pinctrl_remove_gpio_range() - remove a range of GPIOs from a pin controller
534 mutex_lock(&pctldev->mutex); in pinctrl_remove_gpio_range()
535 list_del(&range->node); in pinctrl_remove_gpio_range()
536 mutex_unlock(&pctldev->mutex); in pinctrl_remove_gpio_range()
543 * pinctrl_generic_get_group_count() - returns the number of pin groups
548 return pctldev->num_groups; in pinctrl_generic_get_group_count()
553 * pinctrl_generic_get_group_name() - returns the name of a pin group
562 group = radix_tree_lookup(&pctldev->pin_group_tree, in pinctrl_generic_get_group_name()
567 return group->grp.name; in pinctrl_generic_get_group_name()
572 * pinctrl_generic_get_group_pins() - gets the pin group pins
585 group = radix_tree_lookup(&pctldev->pin_group_tree, in pinctrl_generic_get_group_pins()
588 dev_err(pctldev->dev, "%s could not find pingroup%i\n", in pinctrl_generic_get_group_pins()
590 return -EINVAL; in pinctrl_generic_get_group_pins()
593 *pins = group->grp.pins; in pinctrl_generic_get_group_pins()
594 *num_pins = group->grp.npins; in pinctrl_generic_get_group_pins()
601 * pinctrl_generic_get_group() - returns a pin group based on the number
610 group = radix_tree_lookup(&pctldev->pin_group_tree, in pinctrl_generic_get_group()
622 const struct pinctrl_ops *ops = pctldev->desc->pctlops; in pinctrl_generic_group_name_to_selector()
623 int ngroups = ops->get_groups_count(pctldev); in pinctrl_generic_group_name_to_selector()
628 const char *gname = ops->get_group_name(pctldev, selector); in pinctrl_generic_group_name_to_selector()
636 return -EINVAL; in pinctrl_generic_group_name_to_selector()
640 * pinctrl_generic_add_group() - adds a new pin group
656 return -EINVAL; in pinctrl_generic_add_group()
662 selector = pctldev->num_groups; in pinctrl_generic_add_group()
664 group = devm_kzalloc(pctldev->dev, sizeof(*group), GFP_KERNEL); in pinctrl_generic_add_group()
666 return -ENOMEM; in pinctrl_generic_add_group()
670 error = radix_tree_insert(&pctldev->pin_group_tree, selector, group); in pinctrl_generic_add_group()
674 pctldev->num_groups++; in pinctrl_generic_add_group()
681 * pinctrl_generic_remove_group() - removes a numbered pin group
692 group = radix_tree_lookup(&pctldev->pin_group_tree, in pinctrl_generic_remove_group()
695 return -ENOENT; in pinctrl_generic_remove_group()
697 radix_tree_delete(&pctldev->pin_group_tree, selector); in pinctrl_generic_remove_group()
698 devm_kfree(pctldev->dev, group); in pinctrl_generic_remove_group()
700 pctldev->num_groups--; in pinctrl_generic_remove_group()
707 * pinctrl_generic_free_groups() - removes all pin groups
718 radix_tree_for_each_slot(slot, &pctldev->pin_group_tree, &iter, 0) in pinctrl_generic_free_groups()
719 radix_tree_delete(&pctldev->pin_group_tree, iter.index); in pinctrl_generic_free_groups()
721 pctldev->num_groups = 0; in pinctrl_generic_free_groups()
731 * pinctrl_get_group_selector() - returns the group selector for a group
738 const struct pinctrl_ops *pctlops = pctldev->desc->pctlops; in pinctrl_get_group_selector()
739 unsigned int ngroups = pctlops->get_groups_count(pctldev); in pinctrl_get_group_selector()
743 const char *gname = pctlops->get_group_name(pctldev, in pinctrl_get_group_selector()
746 dev_dbg(pctldev->dev, in pinctrl_get_group_selector()
756 dev_err(pctldev->dev, "does not have pin group %s\n", in pinctrl_get_group_selector()
759 return -EINVAL; in pinctrl_get_group_selector()
772 * without a backing pin controller - bail out. in pinctrl_gpio_can_use_line()
777 mutex_lock(&pctldev->mutex); in pinctrl_gpio_can_use_line()
784 mutex_unlock(&pctldev->mutex); in pinctrl_gpio_can_use_line()
791 * pinctrl_gpio_request() - request a single pin to be used as GPIO
795 * This function should *ONLY* be used from gpiolib-based GPIO drivers,
796 * as part of their gpio_request() semantics, platforms and individual drivers
812 mutex_lock(&pctldev->mutex); in pinctrl_gpio_request()
817 ret = pinmux_request_gpio(pctldev, range, pin, gc->base + offset); in pinctrl_gpio_request()
819 mutex_unlock(&pctldev->mutex); in pinctrl_gpio_request()
826 * pinctrl_gpio_free() - free control on a single pin, currently used as GPIO
830 * This function should *ONLY* be used from gpiolib-based GPIO drivers,
831 * as part of their gpio_request() semantics, platforms and individual drivers
844 mutex_lock(&pctldev->mutex); in pinctrl_gpio_free()
851 mutex_unlock(&pctldev->mutex); in pinctrl_gpio_free()
868 mutex_lock(&pctldev->mutex); in pinctrl_gpio_direction()
874 mutex_unlock(&pctldev->mutex); in pinctrl_gpio_direction()
880 * pinctrl_gpio_direction_input() - request a GPIO pin to go into input mode
884 * This function should *ONLY* be used from gpiolib-based GPIO drivers,
885 * as part of their gpio_direction_input() semantics, platforms and individual
895 * pinctrl_gpio_direction_output() - request a GPIO pin to go into output mode
899 * This function should *ONLY* be used from gpiolib-based GPIO drivers,
900 * as part of their gpio_direction_output() semantics, platforms and individual
910 * pinctrl_gpio_set_config() - Apply config to given GPIO pin
915 * This function should *ONLY* be used from gpiolib-based GPIO drivers, if
931 mutex_lock(&pctldev->mutex); in pinctrl_gpio_set_config()
934 mutex_unlock(&pctldev->mutex); in pinctrl_gpio_set_config()
945 list_for_each_entry(state, &p->states, node) in find_state()
946 if (!strcmp(state->name, name)) in find_state()
959 return ERR_PTR(-ENOMEM); in create_state()
961 state->name = name; in create_state()
962 INIT_LIST_HEAD(&state->settings); in create_state()
964 list_add_tail(&state->node, &p->states); in create_state()
976 state = find_state(p, map->name); in add_setting()
978 state = create_state(p, map->name); in add_setting()
982 if (map->type == PIN_MAP_TYPE_DUMMY_STATE) in add_setting()
987 return -ENOMEM; in add_setting()
989 setting->type = map->type; in add_setting()
992 setting->pctldev = pctldev; in add_setting()
994 setting->pctldev = in add_setting()
995 get_pinctrl_dev_from_devname(map->ctrl_dev_name); in add_setting()
996 if (!setting->pctldev) { in add_setting()
999 if (!strcmp(map->ctrl_dev_name, map->dev_name)) in add_setting()
1000 return -ENODEV; in add_setting()
1005 dev_info(p->dev, "unknown pinctrl device %s in map entry, deferring probe", in add_setting()
1006 map->ctrl_dev_name); in add_setting()
1007 return -EPROBE_DEFER; in add_setting()
1010 setting->dev_name = map->dev_name; in add_setting()
1012 switch (map->type) { in add_setting()
1021 ret = -EINVAL; in add_setting()
1029 list_add_tail(&setting->node, &state->settings); in add_setting()
1040 if (p->dev == dev) { in find_pinctrl()
1067 return ERR_PTR(-ENOMEM); in create_pinctrl()
1068 p->dev = dev; in create_pinctrl()
1069 INIT_LIST_HEAD(&p->states); in create_pinctrl()
1070 INIT_LIST_HEAD(&p->dt_maps); in create_pinctrl()
1084 if (strcmp(map->dev_name, devname)) in create_pinctrl()
1094 strcmp(dev_name(pctldev->dev), map->ctrl_dev_name)) in create_pinctrl()
1101 * - Defer, if the pinctrl device is not yet available in create_pinctrl()
1102 * - Fail, if the pinctrl device is not yet available, in create_pinctrl()
1107 * If the error returned was not -EPROBE_DEFER then we in create_pinctrl()
1109 * an -EPROBE_DEFER later, as that is the worst case. in create_pinctrl()
1111 if (ret == -EPROBE_DEFER) { in create_pinctrl()
1125 kref_init(&p->users); in create_pinctrl()
1129 list_add_tail(&p->node, &pinctrl_list); in create_pinctrl()
1136 * pinctrl_get() - retrieves the pinctrl handle for a device
1144 return ERR_PTR(-EINVAL); in pinctrl_get()
1154 kref_get(&p->users); in pinctrl_get()
1165 switch (setting->type) { in pinctrl_free_setting()
1186 list_for_each_entry_safe(state, n1, &p->states, node) { in pinctrl_free()
1187 list_for_each_entry_safe(setting, n2, &state->settings, node) { in pinctrl_free()
1188 pinctrl_free_setting(state == p->state, setting); in pinctrl_free()
1189 list_del(&setting->node); in pinctrl_free()
1192 list_del(&state->node); in pinctrl_free()
1199 list_del(&p->node); in pinctrl_free()
1205 * pinctrl_release() - release the pinctrl handle
1216 * pinctrl_put() - decrease use count on a previously claimed pinctrl handle
1221 kref_put(&p->users, pinctrl_release); in pinctrl_put()
1226 * pinctrl_lookup_state() - retrieves a state handle from a pinctrl handle
1239 dev_dbg(p->dev, "using pinctrl dummy state (%s)\n", in pinctrl_lookup_state()
1243 state = ERR_PTR(-ENODEV); in pinctrl_lookup_state()
1253 if (pctldev->desc->link_consumers) in pinctrl_link_add()
1254 device_link_add(consumer, pctldev->dev, in pinctrl_link_add()
1264 list_for_each_entry(setting, &state->settings, node) { in pinctrl_cond_disable_mux_setting()
1265 if (target_setting && (&setting->node == &target_setting->node)) in pinctrl_cond_disable_mux_setting()
1268 if (setting->type == PIN_MAP_TYPE_MUX_GROUP) in pinctrl_cond_disable_mux_setting()
1274 * pinctrl_commit_state() - select/activate/program a pinctrl state to HW
1281 struct pinctrl_state *old_state = READ_ONCE(p->state); in pinctrl_commit_state()
1288 * still owned by the new state will be re-acquired by the call in pinctrl_commit_state()
1294 p->state = NULL; in pinctrl_commit_state()
1296 /* Apply all the settings for the new state - pinmux first */ in pinctrl_commit_state()
1297 list_for_each_entry(setting, &state->settings, node) { in pinctrl_commit_state()
1298 switch (setting->type) { in pinctrl_commit_state()
1307 ret = -EINVAL; in pinctrl_commit_state()
1315 if (p != setting->pctldev->p) in pinctrl_commit_state()
1316 pinctrl_link_add(setting->pctldev, p->dev); in pinctrl_commit_state()
1319 /* Apply all the settings for the new state - pinconf after */ in pinctrl_commit_state()
1320 list_for_each_entry(setting, &state->settings, node) { in pinctrl_commit_state()
1321 switch (setting->type) { in pinctrl_commit_state()
1330 ret = -EINVAL; in pinctrl_commit_state()
1339 if (p != setting->pctldev->p) in pinctrl_commit_state()
1340 pinctrl_link_add(setting->pctldev, p->dev); in pinctrl_commit_state()
1343 p->state = state; in pinctrl_commit_state()
1352 dev_err(p->dev, "Error applying setting, reverse things back\n"); in pinctrl_commit_state()
1364 /* There's no infinite recursive loop here because p->state is NULL */ in pinctrl_commit_state()
1372 * pinctrl_select_state() - select/activate/program a pinctrl state to HW
1378 if (p->state == state) in pinctrl_select_state()
1391 * devm_pinctrl_get() - Resource managed pinctrl_get()
1403 return ERR_PTR(-ENOMEM); in devm_pinctrl_get()
1425 * devm_pinctrl_put() - Resource managed pinctrl_put()
1434 WARN_ON(devres_release(p->dev, devm_pinctrl_release, in devm_pinctrl_put()
1440 * pinctrl_register_mappings() - register a set of pin controller mappings
1441 * @maps: the pincontrol mappings table to register. Note the pinctrl-core
1459 return -EINVAL; in pinctrl_register_mappings()
1465 return -EINVAL; in pinctrl_register_mappings()
1472 return -EINVAL; in pinctrl_register_mappings()
1492 return -EINVAL; in pinctrl_register_mappings()
1498 return -ENOMEM; in pinctrl_register_mappings()
1500 maps_node->maps = maps; in pinctrl_register_mappings()
1501 maps_node->num_maps = num_maps; in pinctrl_register_mappings()
1504 list_add_tail(&maps_node->node, &pinctrl_maps); in pinctrl_register_mappings()
1512 * pinctrl_unregister_mappings() - unregister a set of pin controller mappings
1522 if (maps_node->maps == map) { in pinctrl_unregister_mappings()
1523 list_del(&maps_node->node); in pinctrl_unregister_mappings()
1534 * pinctrl_force_sleep() - turn a given controller device into sleep state
1539 if (!IS_ERR(pctldev->p) && !IS_ERR(pctldev->hog_sleep)) in pinctrl_force_sleep()
1540 return pinctrl_commit_state(pctldev->p, pctldev->hog_sleep); in pinctrl_force_sleep()
1546 * pinctrl_force_default() - turn a given controller device into default state
1551 if (!IS_ERR(pctldev->p) && !IS_ERR(pctldev->hog_default)) in pinctrl_force_default()
1552 return pinctrl_commit_state(pctldev->p, pctldev->hog_default); in pinctrl_force_default()
1558 * pinctrl_init_done() - tell pinctrl probe is done
1567 struct dev_pin_info *pins = dev->pins; in pinctrl_init_done()
1573 if (IS_ERR(pins->init_state)) in pinctrl_init_done()
1576 if (pins->p->state != pins->init_state) in pinctrl_init_done()
1579 if (IS_ERR(pins->default_state)) in pinctrl_init_done()
1582 ret = pinctrl_select_state(pins->p, pins->default_state); in pinctrl_init_done()
1592 struct dev_pin_info *pins = dev->pins; in pinctrl_select_bound_state()
1597 ret = pinctrl_select_state(pins->p, state); in pinctrl_select_bound_state()
1600 state->name); in pinctrl_select_bound_state()
1605 * pinctrl_select_default_state() - select default pinctrl state
1610 if (!dev->pins) in pinctrl_select_default_state()
1613 return pinctrl_select_bound_state(dev, dev->pins->default_state); in pinctrl_select_default_state()
1620 * pinctrl_pm_select_default_state() - select default pinctrl state for PM
1630 * pinctrl_pm_select_sleep_state() - select sleep pinctrl state for PM
1635 if (!dev->pins) in pinctrl_pm_select_sleep_state()
1638 return pinctrl_select_bound_state(dev, dev->pins->sleep_state); in pinctrl_pm_select_sleep_state()
1643 * pinctrl_pm_select_idle_state() - select idle pinctrl state for PM
1648 if (!dev->pins) in pinctrl_pm_select_idle_state()
1651 return pinctrl_select_bound_state(dev, dev->pins->idle_state); in pinctrl_pm_select_idle_state()
1660 struct pinctrl_dev *pctldev = s->private; in pinctrl_pins_show()
1661 const struct pinctrl_ops *ops = pctldev->desc->pctlops; in pinctrl_pins_show()
1669 seq_printf(s, "registered pins: %d\n", pctldev->desc->npins); in pinctrl_pins_show()
1671 mutex_lock(&pctldev->mutex); in pinctrl_pins_show()
1674 for (i = 0; i < pctldev->desc->npins; i++) { in pinctrl_pins_show()
1677 pin = pctldev->desc->pins[i].number; in pinctrl_pins_show()
1683 seq_printf(s, "pin %d (%s) ", pin, desc->name); in pinctrl_pins_show()
1687 gpio_num = -1; in pinctrl_pins_show()
1688 list_for_each_entry(range, &pctldev->gpio_ranges, node) { in pinctrl_pins_show()
1689 if (range->pins != NULL) { in pinctrl_pins_show()
1690 for (int i = 0; i < range->npins; ++i) { in pinctrl_pins_show()
1691 if (range->pins[i] == pin) { in pinctrl_pins_show()
1692 gpio_num = range->base + i; in pinctrl_pins_show()
1696 } else if ((pin >= range->pin_base) && in pinctrl_pins_show()
1697 (pin < (range->pin_base + range->npins))) { in pinctrl_pins_show()
1699 range->base + (pin - range->pin_base); in pinctrl_pins_show()
1701 if (gpio_num != -1) in pinctrl_pins_show()
1707 * we need to get rid of the range->base eventually and in pinctrl_pins_show()
1713 gpio_num - gpio_device_get_base(gdev), in pinctrl_pins_show()
1719 /* Driver-specific info per pin */ in pinctrl_pins_show()
1720 if (ops->pin_dbg_show) in pinctrl_pins_show()
1721 ops->pin_dbg_show(pctldev, s, pin); in pinctrl_pins_show()
1726 mutex_unlock(&pctldev->mutex); in pinctrl_pins_show()
1734 struct pinctrl_dev *pctldev = s->private; in pinctrl_groups_show()
1735 const struct pinctrl_ops *ops = pctldev->desc->pctlops; in pinctrl_groups_show()
1738 mutex_lock(&pctldev->mutex); in pinctrl_groups_show()
1740 ngroups = ops->get_groups_count(pctldev); in pinctrl_groups_show()
1746 const char *gname = ops->get_group_name(pctldev, selector); in pinctrl_groups_show()
1751 if (ops->get_group_pins) in pinctrl_groups_show()
1752 ret = ops->get_group_pins(pctldev, selector, in pinctrl_groups_show()
1762 mutex_unlock(&pctldev->mutex); in pinctrl_groups_show()
1763 return -EINVAL; in pinctrl_groups_show()
1772 mutex_unlock(&pctldev->mutex); in pinctrl_groups_show()
1780 struct pinctrl_dev *pctldev = s->private; in pinctrl_gpioranges_show()
1785 mutex_lock(&pctldev->mutex); in pinctrl_gpioranges_show()
1788 list_for_each_entry(range, &pctldev->gpio_ranges, node) { in pinctrl_gpioranges_show()
1789 if (range->pins) { in pinctrl_gpioranges_show()
1791 seq_printf(s, "%u: %s GPIOS [%u - %u] PINS {", in pinctrl_gpioranges_show()
1792 range->id, range->name, in pinctrl_gpioranges_show()
1793 range->base, (range->base + range->npins - 1)); in pinctrl_gpioranges_show()
1794 for (a = 0; a < range->npins - 1; a++) in pinctrl_gpioranges_show()
1795 seq_printf(s, "%u, ", range->pins[a]); in pinctrl_gpioranges_show()
1796 seq_printf(s, "%u}\n", range->pins[a]); in pinctrl_gpioranges_show()
1799 seq_printf(s, "%u: %s GPIOS [%u - %u] PINS [%u - %u]\n", in pinctrl_gpioranges_show()
1800 range->id, range->name, in pinctrl_gpioranges_show()
1801 range->base, (range->base + range->npins - 1), in pinctrl_gpioranges_show()
1802 range->pin_base, in pinctrl_gpioranges_show()
1803 (range->pin_base + range->npins - 1)); in pinctrl_gpioranges_show()
1806 mutex_unlock(&pctldev->mutex); in pinctrl_gpioranges_show()
1821 seq_printf(s, "%s ", pctldev->desc->name); in pinctrl_devices_show()
1822 if (pctldev->desc->pmxops) in pinctrl_devices_show()
1826 if (pctldev->desc->confops) in pinctrl_devices_show()
1865 map->dev_name, map->name, map_type(map->type), in pinctrl_maps_show()
1866 map->type); in pinctrl_maps_show()
1868 if (map->type != PIN_MAP_TYPE_DUMMY_STATE) in pinctrl_maps_show()
1870 map->ctrl_dev_name); in pinctrl_maps_show()
1872 switch (map->type) { in pinctrl_maps_show()
1898 seq_puts(s, "Requested pin control handlers their pinmux maps:\n"); in pinctrl_show()
1904 dev_name(p->dev), in pinctrl_show()
1905 p->state ? p->state->name : "none"); in pinctrl_show()
1907 list_for_each_entry(state, &p->states, node) { in pinctrl_show()
1908 seq_printf(s, " state: %s\n", state->name); in pinctrl_show()
1910 list_for_each_entry(setting, &state->settings, node) { in pinctrl_show()
1911 struct pinctrl_dev *pctldev = setting->pctldev; in pinctrl_show()
1914 map_type(setting->type), in pinctrl_show()
1917 switch (setting->type) { in pinctrl_show()
1945 if (pctldev->desc->name && in pinctrl_init_device_debugfs()
1946 strcmp(dev_name(pctldev->dev), pctldev->desc->name)) { in pinctrl_init_device_debugfs()
1947 debugfs_name = devm_kasprintf(pctldev->dev, GFP_KERNEL, in pinctrl_init_device_debugfs()
1948 "%s-%s", dev_name(pctldev->dev), in pinctrl_init_device_debugfs()
1949 pctldev->desc->name); in pinctrl_init_device_debugfs()
1952 dev_name(pctldev->dev)); in pinctrl_init_device_debugfs()
1956 debugfs_name = dev_name(pctldev->dev); in pinctrl_init_device_debugfs()
1960 pctldev->device_root = device_root; in pinctrl_init_device_debugfs()
1964 dev_name(pctldev->dev)); in pinctrl_init_device_debugfs()
1971 debugfs_create_file("gpio-ranges", 0444, in pinctrl_init_device_debugfs()
1973 if (pctldev->desc->pmxops) in pinctrl_init_device_debugfs()
1975 if (pctldev->desc->confops) in pinctrl_init_device_debugfs()
1981 debugfs_remove_recursive(pctldev->device_root); in pinctrl_remove_device_debugfs()
1993 debugfs_create_file("pinctrl-devices", 0444, in pinctrl_init_debugfs()
1995 debugfs_create_file("pinctrl-maps", 0444, in pinctrl_init_debugfs()
1997 debugfs_create_file("pinctrl-handles", 0444, in pinctrl_init_debugfs()
2019 const struct pinctrl_ops *ops = pctldev->desc->pctlops; in pinctrl_check_ops()
2022 !ops->get_groups_count || in pinctrl_check_ops()
2023 !ops->get_group_name) in pinctrl_check_ops()
2024 return -EINVAL; in pinctrl_check_ops()
2030 * pinctrl_init_controller() - init a pin controller device
2043 return ERR_PTR(-EINVAL); in pinctrl_init_controller()
2044 if (!pctldesc->name) in pinctrl_init_controller()
2045 return ERR_PTR(-EINVAL); in pinctrl_init_controller()
2049 return ERR_PTR(-ENOMEM); in pinctrl_init_controller()
2052 pctldev->owner = pctldesc->owner; in pinctrl_init_controller()
2053 pctldev->desc = pctldesc; in pinctrl_init_controller()
2054 pctldev->driver_data = driver_data; in pinctrl_init_controller()
2055 INIT_RADIX_TREE(&pctldev->pin_desc_tree, GFP_KERNEL); in pinctrl_init_controller()
2057 INIT_RADIX_TREE(&pctldev->pin_group_tree, GFP_KERNEL); in pinctrl_init_controller()
2060 INIT_RADIX_TREE(&pctldev->pin_function_tree, GFP_KERNEL); in pinctrl_init_controller()
2062 INIT_LIST_HEAD(&pctldev->gpio_ranges); in pinctrl_init_controller()
2063 INIT_LIST_HEAD(&pctldev->node); in pinctrl_init_controller()
2064 pctldev->dev = dev; in pinctrl_init_controller()
2065 mutex_init(&pctldev->mutex); in pinctrl_init_controller()
2075 if (pctldesc->pmxops) { in pinctrl_init_controller()
2082 if (pctldesc->confops) { in pinctrl_init_controller()
2089 dev_dbg(dev, "try to register %d pins ...\n", pctldesc->npins); in pinctrl_init_controller()
2090 ret = pinctrl_register_pins(pctldev, pctldesc->pins, pctldesc->npins); in pinctrl_init_controller()
2093 pinctrl_free_pindescs(pctldev, pctldesc->pins, in pinctrl_init_controller()
2094 pctldesc->npins); in pinctrl_init_controller()
2101 mutex_destroy(&pctldev->mutex); in pinctrl_init_controller()
2108 pinctrl_free_pindescs(pctldev, pctldesc->pins, in pinctrl_uninit_controller()
2109 pctldesc->npins); in pinctrl_uninit_controller()
2110 mutex_destroy(&pctldev->mutex); in pinctrl_uninit_controller()
2116 pctldev->p = create_pinctrl(pctldev->dev, pctldev); in pinctrl_claim_hogs()
2117 if (PTR_ERR(pctldev->p) == -ENODEV) { in pinctrl_claim_hogs()
2118 dev_dbg(pctldev->dev, "no hogs found\n"); in pinctrl_claim_hogs()
2123 if (IS_ERR(pctldev->p)) { in pinctrl_claim_hogs()
2124 dev_err(pctldev->dev, "error claiming hogs: %li\n", in pinctrl_claim_hogs()
2125 PTR_ERR(pctldev->p)); in pinctrl_claim_hogs()
2127 return PTR_ERR(pctldev->p); in pinctrl_claim_hogs()
2130 pctldev->hog_default = in pinctrl_claim_hogs()
2131 pinctrl_lookup_state(pctldev->p, PINCTRL_STATE_DEFAULT); in pinctrl_claim_hogs()
2132 if (IS_ERR(pctldev->hog_default)) { in pinctrl_claim_hogs()
2133 dev_dbg(pctldev->dev, in pinctrl_claim_hogs()
2136 if (pinctrl_select_state(pctldev->p, in pinctrl_claim_hogs()
2137 pctldev->hog_default)) in pinctrl_claim_hogs()
2138 dev_err(pctldev->dev, in pinctrl_claim_hogs()
2142 pctldev->hog_sleep = in pinctrl_claim_hogs()
2143 pinctrl_lookup_state(pctldev->p, in pinctrl_claim_hogs()
2145 if (IS_ERR(pctldev->hog_sleep)) in pinctrl_claim_hogs()
2146 dev_dbg(pctldev->dev, in pinctrl_claim_hogs()
2158 dev_err(pctldev->dev, "could not claim hogs: %i\n", error); in pinctrl_enable()
2163 list_add_tail(&pctldev->node, &pinctrldev_list); in pinctrl_enable()
2173 * pinctrl_register() - register a pin controller device
2204 * pinctrl_register_and_init() - register and init pin controller device
2236 * pinctrl_unregister() - unregister pinmux
2248 mutex_lock(&pctldev->mutex); in pinctrl_unregister()
2250 mutex_unlock(&pctldev->mutex); in pinctrl_unregister()
2252 if (!IS_ERR_OR_NULL(pctldev->p)) in pinctrl_unregister()
2253 pinctrl_put(pctldev->p); in pinctrl_unregister()
2256 mutex_lock(&pctldev->mutex); in pinctrl_unregister()
2258 list_del(&pctldev->node); in pinctrl_unregister()
2262 pinctrl_free_pindescs(pctldev, pctldev->desc->pins, in pinctrl_unregister()
2263 pctldev->desc->npins); in pinctrl_unregister()
2265 list_for_each_entry_safe(range, n, &pctldev->gpio_ranges, node) in pinctrl_unregister()
2266 list_del(&range->node); in pinctrl_unregister()
2268 mutex_unlock(&pctldev->mutex); in pinctrl_unregister()
2269 mutex_destroy(&pctldev->mutex); in pinctrl_unregister()
2293 * devm_pinctrl_register() - Resource managed version of pinctrl_register().
2311 return ERR_PTR(-ENOMEM); in devm_pinctrl_register()
2327 * devm_pinctrl_register_and_init() - Resource managed pinctrl register and init
2347 return -ENOMEM; in devm_pinctrl_register_and_init()
2363 * devm_pinctrl_unregister() - Resource managed version of pinctrl_unregister().