2 * Allwinner A1X SoCs pinctrl driver.
4 * Copyright (C) 2012 Maxime Ripard
6 * Maxime Ripard <maxime.ripard@free-electrons.com>
8 * This file is licensed under the terms of the GNU General Public
9 * License version 2. This program is licensed "as is" without any
10 * warranty of any kind, whether express or implied.
14 #include <linux/clk.h>
15 #include <linux/gpio.h>
16 #include <linux/irqdomain.h>
17 #include <linux/irqchip/chained_irq.h>
18 #include <linux/module.h>
20 #include <linux/of_address.h>
21 #include <linux/of_device.h>
22 #include <linux/of_irq.h>
23 #include <linux/pinctrl/consumer.h>
24 #include <linux/pinctrl/machine.h>
25 #include <linux/pinctrl/pinctrl.h>
26 #include <linux/pinctrl/pinconf-generic.h>
27 #include <linux/pinctrl/pinmux.h>
28 #include <linux/platform_device.h>
29 #include <linux/slab.h>
32 #include "pinctrl-sunxi.h"
34 static struct sunxi_pinctrl_group *
35 sunxi_pinctrl_find_group_by_name(struct sunxi_pinctrl *pctl, const char *group)
39 for (i = 0; i < pctl->ngroups; i++) {
40 struct sunxi_pinctrl_group *grp = pctl->groups + i;
42 if (!strcmp(grp->name, group))
49 static struct sunxi_pinctrl_function *
50 sunxi_pinctrl_find_function_by_name(struct sunxi_pinctrl *pctl,
53 struct sunxi_pinctrl_function *func = pctl->functions;
56 for (i = 0; i < pctl->nfunctions; i++) {
60 if (!strcmp(func[i].name, name))
67 static struct sunxi_desc_function *
68 sunxi_pinctrl_desc_find_function_by_name(struct sunxi_pinctrl *pctl,
70 const char *func_name)
74 for (i = 0; i < pctl->desc->npins; i++) {
75 const struct sunxi_desc_pin *pin = pctl->desc->pins + i;
77 if (!strcmp(pin->pin.name, pin_name)) {
78 struct sunxi_desc_function *func = pin->functions;
81 if (!strcmp(func->name, func_name))
92 static struct sunxi_desc_function *
93 sunxi_pinctrl_desc_find_function_by_pin(struct sunxi_pinctrl *pctl,
95 const char *func_name)
99 for (i = 0; i < pctl->desc->npins; i++) {
100 const struct sunxi_desc_pin *pin = pctl->desc->pins + i;
102 if (pin->pin.number == pin_num) {
103 struct sunxi_desc_function *func = pin->functions;
106 if (!strcmp(func->name, func_name))
117 static int sunxi_pctrl_get_groups_count(struct pinctrl_dev *pctldev)
119 struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
121 return pctl->ngroups;
124 static const char *sunxi_pctrl_get_group_name(struct pinctrl_dev *pctldev,
127 struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
129 return pctl->groups[group].name;
132 static int sunxi_pctrl_get_group_pins(struct pinctrl_dev *pctldev,
134 const unsigned **pins,
137 struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
139 *pins = (unsigned *)&pctl->groups[group].pin;
145 static int sunxi_pctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
146 struct device_node *node,
147 struct pinctrl_map **map,
150 struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
151 unsigned long *pinconfig;
152 struct property *prop;
153 const char *function;
155 int ret, nmaps, i = 0;
161 ret = of_property_read_string(node, "allwinner,function", &function);
164 "missing allwinner,function property in node %s\n",
169 nmaps = of_property_count_strings(node, "allwinner,pins") * 2;
172 "missing allwinner,pins property in node %s\n",
177 *map = kmalloc(nmaps * sizeof(struct pinctrl_map), GFP_KERNEL);
181 of_property_for_each_string(node, "allwinner,pins", prop, group) {
182 struct sunxi_pinctrl_group *grp =
183 sunxi_pinctrl_find_group_by_name(pctl, group);
184 int j = 0, configlen = 0;
187 dev_err(pctl->dev, "unknown pin %s", group);
191 if (!sunxi_pinctrl_desc_find_function_by_name(pctl,
194 dev_err(pctl->dev, "unsupported function %s on pin %s",
199 (*map)[i].type = PIN_MAP_TYPE_MUX_GROUP;
200 (*map)[i].data.mux.group = group;
201 (*map)[i].data.mux.function = function;
205 (*map)[i].type = PIN_MAP_TYPE_CONFIGS_GROUP;
206 (*map)[i].data.configs.group_or_pin = group;
208 if (of_find_property(node, "allwinner,drive", NULL))
210 if (of_find_property(node, "allwinner,pull", NULL))
213 pinconfig = kzalloc(configlen * sizeof(*pinconfig), GFP_KERNEL);
215 if (!of_property_read_u32(node, "allwinner,drive", &val)) {
216 u16 strength = (val + 1) * 10;
218 pinconf_to_config_packed(PIN_CONFIG_DRIVE_STRENGTH,
222 if (!of_property_read_u32(node, "allwinner,pull", &val)) {
223 enum pin_config_param pull = PIN_CONFIG_END;
225 pull = PIN_CONFIG_BIAS_PULL_UP;
227 pull = PIN_CONFIG_BIAS_PULL_DOWN;
228 pinconfig[j++] = pinconf_to_config_packed(pull, 0);
231 (*map)[i].data.configs.configs = pinconfig;
232 (*map)[i].data.configs.num_configs = configlen;
242 static void sunxi_pctrl_dt_free_map(struct pinctrl_dev *pctldev,
243 struct pinctrl_map *map,
248 for (i = 0; i < num_maps; i++) {
249 if (map[i].type == PIN_MAP_TYPE_CONFIGS_GROUP)
250 kfree(map[i].data.configs.configs);
256 static const struct pinctrl_ops sunxi_pctrl_ops = {
257 .dt_node_to_map = sunxi_pctrl_dt_node_to_map,
258 .dt_free_map = sunxi_pctrl_dt_free_map,
259 .get_groups_count = sunxi_pctrl_get_groups_count,
260 .get_group_name = sunxi_pctrl_get_group_name,
261 .get_group_pins = sunxi_pctrl_get_group_pins,
264 static int sunxi_pconf_group_get(struct pinctrl_dev *pctldev,
266 unsigned long *config)
268 struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
270 *config = pctl->groups[group].config;
275 static int sunxi_pconf_group_set(struct pinctrl_dev *pctldev,
277 unsigned long *configs,
278 unsigned num_configs)
280 struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
281 struct sunxi_pinctrl_group *g = &pctl->groups[group];
283 unsigned pin = g->pin - pctl->desc->pin_base;
289 spin_lock_irqsave(&pctl->lock, flags);
291 for (i = 0; i < num_configs; i++) {
292 switch (pinconf_to_config_param(configs[i])) {
293 case PIN_CONFIG_DRIVE_STRENGTH:
294 strength = pinconf_to_config_argument(configs[i]);
296 spin_unlock_irqrestore(&pctl->lock, flags);
300 * We convert from mA to what the register expects:
306 dlevel = strength / 10 - 1;
307 val = readl(pctl->membase + sunxi_dlevel_reg(pin));
308 mask = DLEVEL_PINS_MASK << sunxi_dlevel_offset(pin);
310 | dlevel << sunxi_dlevel_offset(pin),
311 pctl->membase + sunxi_dlevel_reg(pin));
313 case PIN_CONFIG_BIAS_PULL_UP:
314 val = readl(pctl->membase + sunxi_pull_reg(pin));
315 mask = PULL_PINS_MASK << sunxi_pull_offset(pin);
316 writel((val & ~mask) | 1 << sunxi_pull_offset(pin),
317 pctl->membase + sunxi_pull_reg(pin));
319 case PIN_CONFIG_BIAS_PULL_DOWN:
320 val = readl(pctl->membase + sunxi_pull_reg(pin));
321 mask = PULL_PINS_MASK << sunxi_pull_offset(pin);
322 writel((val & ~mask) | 2 << sunxi_pull_offset(pin),
323 pctl->membase + sunxi_pull_reg(pin));
328 /* cache the config value */
329 g->config = configs[i];
330 } /* for each config */
332 spin_unlock_irqrestore(&pctl->lock, flags);
337 static const struct pinconf_ops sunxi_pconf_ops = {
338 .pin_config_group_get = sunxi_pconf_group_get,
339 .pin_config_group_set = sunxi_pconf_group_set,
342 static int sunxi_pmx_get_funcs_cnt(struct pinctrl_dev *pctldev)
344 struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
346 return pctl->nfunctions;
349 static const char *sunxi_pmx_get_func_name(struct pinctrl_dev *pctldev,
352 struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
354 return pctl->functions[function].name;
357 static int sunxi_pmx_get_func_groups(struct pinctrl_dev *pctldev,
359 const char * const **groups,
360 unsigned * const num_groups)
362 struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
364 *groups = pctl->functions[function].groups;
365 *num_groups = pctl->functions[function].ngroups;
370 static void sunxi_pmx_set(struct pinctrl_dev *pctldev,
374 struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
378 spin_lock_irqsave(&pctl->lock, flags);
380 pin -= pctl->desc->pin_base;
381 val = readl(pctl->membase + sunxi_mux_reg(pin));
382 mask = MUX_PINS_MASK << sunxi_mux_offset(pin);
383 writel((val & ~mask) | config << sunxi_mux_offset(pin),
384 pctl->membase + sunxi_mux_reg(pin));
386 spin_unlock_irqrestore(&pctl->lock, flags);
389 static int sunxi_pmx_enable(struct pinctrl_dev *pctldev,
393 struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
394 struct sunxi_pinctrl_group *g = pctl->groups + group;
395 struct sunxi_pinctrl_function *func = pctl->functions + function;
396 struct sunxi_desc_function *desc =
397 sunxi_pinctrl_desc_find_function_by_name(pctl,
404 sunxi_pmx_set(pctldev, g->pin, desc->muxval);
410 sunxi_pmx_gpio_set_direction(struct pinctrl_dev *pctldev,
411 struct pinctrl_gpio_range *range,
415 struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
416 struct sunxi_desc_function *desc;
424 desc = sunxi_pinctrl_desc_find_function_by_pin(pctl, offset, func);
428 sunxi_pmx_set(pctldev, offset, desc->muxval);
433 static const struct pinmux_ops sunxi_pmx_ops = {
434 .get_functions_count = sunxi_pmx_get_funcs_cnt,
435 .get_function_name = sunxi_pmx_get_func_name,
436 .get_function_groups = sunxi_pmx_get_func_groups,
437 .enable = sunxi_pmx_enable,
438 .gpio_set_direction = sunxi_pmx_gpio_set_direction,
441 static int sunxi_pinctrl_gpio_request(struct gpio_chip *chip, unsigned offset)
443 return pinctrl_request_gpio(chip->base + offset);
446 static void sunxi_pinctrl_gpio_free(struct gpio_chip *chip, unsigned offset)
448 pinctrl_free_gpio(chip->base + offset);
451 static int sunxi_pinctrl_gpio_direction_input(struct gpio_chip *chip,
454 return pinctrl_gpio_direction_input(chip->base + offset);
457 static int sunxi_pinctrl_gpio_get(struct gpio_chip *chip, unsigned offset)
459 struct sunxi_pinctrl *pctl = dev_get_drvdata(chip->dev);
461 u32 reg = sunxi_data_reg(offset);
462 u8 index = sunxi_data_offset(offset);
463 u32 val = (readl(pctl->membase + reg) >> index) & DATA_PINS_MASK;
468 static void sunxi_pinctrl_gpio_set(struct gpio_chip *chip,
469 unsigned offset, int value)
471 struct sunxi_pinctrl *pctl = dev_get_drvdata(chip->dev);
472 u32 reg = sunxi_data_reg(offset);
473 u8 index = sunxi_data_offset(offset);
477 spin_lock_irqsave(&pctl->lock, flags);
479 regval = readl(pctl->membase + reg);
482 regval |= BIT(index);
484 regval &= ~(BIT(index));
486 writel(regval, pctl->membase + reg);
488 spin_unlock_irqrestore(&pctl->lock, flags);
491 static int sunxi_pinctrl_gpio_direction_output(struct gpio_chip *chip,
492 unsigned offset, int value)
494 sunxi_pinctrl_gpio_set(chip, offset, value);
495 return pinctrl_gpio_direction_output(chip->base + offset);
498 static int sunxi_pinctrl_gpio_of_xlate(struct gpio_chip *gc,
499 const struct of_phandle_args *gpiospec,
504 base = PINS_PER_BANK * gpiospec->args[0];
505 pin = base + gpiospec->args[1];
507 if (pin > (gc->base + gc->ngpio))
511 *flags = gpiospec->args[2];
516 static int sunxi_pinctrl_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
518 struct sunxi_pinctrl *pctl = dev_get_drvdata(chip->dev);
519 struct sunxi_desc_function *desc;
521 if (offset >= chip->ngpio)
524 desc = sunxi_pinctrl_desc_find_function_by_pin(pctl, offset, "irq");
528 dev_dbg(chip->dev, "%s: request IRQ for GPIO %d, return %d\n",
529 chip->label, offset + chip->base, desc->irqnum);
531 return irq_find_mapping(pctl->domain, desc->irqnum);
535 static int sunxi_pinctrl_irq_set_type(struct irq_data *d,
538 struct sunxi_pinctrl *pctl = irq_data_get_irq_chip_data(d);
539 u32 reg = sunxi_irq_cfg_reg(d->hwirq);
540 u8 index = sunxi_irq_cfg_offset(d->hwirq);
546 case IRQ_TYPE_EDGE_RISING:
547 mode = IRQ_EDGE_RISING;
549 case IRQ_TYPE_EDGE_FALLING:
550 mode = IRQ_EDGE_FALLING;
552 case IRQ_TYPE_EDGE_BOTH:
553 mode = IRQ_EDGE_BOTH;
555 case IRQ_TYPE_LEVEL_HIGH:
556 mode = IRQ_LEVEL_HIGH;
558 case IRQ_TYPE_LEVEL_LOW:
559 mode = IRQ_LEVEL_LOW;
565 spin_lock_irqsave(&pctl->lock, flags);
567 regval = readl(pctl->membase + reg);
568 regval &= ~(IRQ_CFG_IRQ_MASK << index);
569 writel(regval | (mode << index), pctl->membase + reg);
571 spin_unlock_irqrestore(&pctl->lock, flags);
576 static void sunxi_pinctrl_irq_mask_ack(struct irq_data *d)
578 struct sunxi_pinctrl *pctl = irq_data_get_irq_chip_data(d);
579 u32 ctrl_reg = sunxi_irq_ctrl_reg(d->hwirq);
580 u8 ctrl_idx = sunxi_irq_ctrl_offset(d->hwirq);
581 u32 status_reg = sunxi_irq_status_reg(d->hwirq);
582 u8 status_idx = sunxi_irq_status_offset(d->hwirq);
586 spin_lock_irqsave(&pctl->lock, flags);
589 val = readl(pctl->membase + ctrl_reg);
590 writel(val & ~(1 << ctrl_idx), pctl->membase + ctrl_reg);
593 writel(1 << status_idx, pctl->membase + status_reg);
595 spin_unlock_irqrestore(&pctl->lock, flags);
598 static void sunxi_pinctrl_irq_mask(struct irq_data *d)
600 struct sunxi_pinctrl *pctl = irq_data_get_irq_chip_data(d);
601 u32 reg = sunxi_irq_ctrl_reg(d->hwirq);
602 u8 idx = sunxi_irq_ctrl_offset(d->hwirq);
606 spin_lock_irqsave(&pctl->lock, flags);
609 val = readl(pctl->membase + reg);
610 writel(val & ~(1 << idx), pctl->membase + reg);
612 spin_unlock_irqrestore(&pctl->lock, flags);
615 static void sunxi_pinctrl_irq_unmask(struct irq_data *d)
617 struct sunxi_pinctrl *pctl = irq_data_get_irq_chip_data(d);
618 struct sunxi_desc_function *func;
619 u32 reg = sunxi_irq_ctrl_reg(d->hwirq);
620 u8 idx = sunxi_irq_ctrl_offset(d->hwirq);
624 func = sunxi_pinctrl_desc_find_function_by_pin(pctl,
625 pctl->irq_array[d->hwirq],
628 /* Change muxing to INT mode */
629 sunxi_pmx_set(pctl->pctl_dev, pctl->irq_array[d->hwirq], func->muxval);
631 spin_lock_irqsave(&pctl->lock, flags);
634 val = readl(pctl->membase + reg);
635 writel(val | (1 << idx), pctl->membase + reg);
637 spin_unlock_irqrestore(&pctl->lock, flags);
640 static struct irq_chip sunxi_pinctrl_irq_chip = {
641 .irq_mask = sunxi_pinctrl_irq_mask,
642 .irq_mask_ack = sunxi_pinctrl_irq_mask_ack,
643 .irq_unmask = sunxi_pinctrl_irq_unmask,
644 .irq_set_type = sunxi_pinctrl_irq_set_type,
647 static void sunxi_pinctrl_irq_handler(unsigned irq, struct irq_desc *desc)
649 struct irq_chip *chip = irq_get_chip(irq);
650 struct sunxi_pinctrl *pctl = irq_get_handler_data(irq);
651 const unsigned long reg = readl(pctl->membase + IRQ_STATUS_REG);
653 /* Clear all interrupts */
654 writel(reg, pctl->membase + IRQ_STATUS_REG);
659 chained_irq_enter(chip, desc);
660 for_each_set_bit(irqoffset, ®, SUNXI_IRQ_NUMBER) {
661 int pin_irq = irq_find_mapping(pctl->domain, irqoffset);
662 generic_handle_irq(pin_irq);
664 chained_irq_exit(chip, desc);
668 static int sunxi_pinctrl_add_function(struct sunxi_pinctrl *pctl,
671 struct sunxi_pinctrl_function *func = pctl->functions;
674 /* function already there */
675 if (strcmp(func->name, name) == 0) {
690 static int sunxi_pinctrl_build_state(struct platform_device *pdev)
692 struct sunxi_pinctrl *pctl = platform_get_drvdata(pdev);
695 pctl->ngroups = pctl->desc->npins;
697 /* Allocate groups */
698 pctl->groups = devm_kzalloc(&pdev->dev,
699 pctl->ngroups * sizeof(*pctl->groups),
704 for (i = 0; i < pctl->desc->npins; i++) {
705 const struct sunxi_desc_pin *pin = pctl->desc->pins + i;
706 struct sunxi_pinctrl_group *group = pctl->groups + i;
708 group->name = pin->pin.name;
709 group->pin = pin->pin.number;
713 * We suppose that we won't have any more functions than pins,
714 * we'll reallocate that later anyway
716 pctl->functions = devm_kzalloc(&pdev->dev,
717 pctl->desc->npins * sizeof(*pctl->functions),
719 if (!pctl->functions)
722 /* Count functions and their associated groups */
723 for (i = 0; i < pctl->desc->npins; i++) {
724 const struct sunxi_desc_pin *pin = pctl->desc->pins + i;
725 struct sunxi_desc_function *func = pin->functions;
728 /* Create interrupt mapping while we're at it */
729 if (!strcmp(func->name, "irq"))
730 pctl->irq_array[func->irqnum] = pin->pin.number;
731 sunxi_pinctrl_add_function(pctl, func->name);
736 pctl->functions = krealloc(pctl->functions,
737 pctl->nfunctions * sizeof(*pctl->functions),
740 for (i = 0; i < pctl->desc->npins; i++) {
741 const struct sunxi_desc_pin *pin = pctl->desc->pins + i;
742 struct sunxi_desc_function *func = pin->functions;
745 struct sunxi_pinctrl_function *func_item;
746 const char **func_grp;
748 func_item = sunxi_pinctrl_find_function_by_name(pctl,
753 if (!func_item->groups) {
755 devm_kzalloc(&pdev->dev,
756 func_item->ngroups * sizeof(*func_item->groups),
758 if (!func_item->groups)
762 func_grp = func_item->groups;
766 *func_grp = pin->pin.name;
774 int sunxi_pinctrl_init(struct platform_device *pdev,
775 const struct sunxi_pinctrl_desc *desc)
777 struct device_node *node = pdev->dev.of_node;
778 struct pinctrl_desc *pctrl_desc;
779 struct pinctrl_pin_desc *pins;
780 struct sunxi_pinctrl *pctl;
781 struct resource *res;
782 int i, ret, last_pin;
785 pctl = devm_kzalloc(&pdev->dev, sizeof(*pctl), GFP_KERNEL);
788 platform_set_drvdata(pdev, pctl);
790 spin_lock_init(&pctl->lock);
792 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
793 pctl->membase = devm_ioremap_resource(&pdev->dev, res);
794 if (IS_ERR(pctl->membase))
795 return PTR_ERR(pctl->membase);
797 pctl->dev = &pdev->dev;
800 ret = sunxi_pinctrl_build_state(pdev);
802 dev_err(&pdev->dev, "dt probe failed: %d\n", ret);
806 pins = devm_kzalloc(&pdev->dev,
807 pctl->desc->npins * sizeof(*pins),
812 for (i = 0; i < pctl->desc->npins; i++)
813 pins[i] = pctl->desc->pins[i].pin;
815 pctrl_desc = devm_kzalloc(&pdev->dev,
821 pctrl_desc->name = dev_name(&pdev->dev);
822 pctrl_desc->owner = THIS_MODULE;
823 pctrl_desc->pins = pins;
824 pctrl_desc->npins = pctl->desc->npins;
825 pctrl_desc->confops = &sunxi_pconf_ops;
826 pctrl_desc->pctlops = &sunxi_pctrl_ops;
827 pctrl_desc->pmxops = &sunxi_pmx_ops;
829 pctl->pctl_dev = pinctrl_register(pctrl_desc,
831 if (!pctl->pctl_dev) {
832 dev_err(&pdev->dev, "couldn't register pinctrl driver\n");
836 pctl->chip = devm_kzalloc(&pdev->dev, sizeof(*pctl->chip), GFP_KERNEL);
842 last_pin = pctl->desc->pins[pctl->desc->npins - 1].pin.number;
843 pctl->chip->owner = THIS_MODULE;
844 pctl->chip->request = sunxi_pinctrl_gpio_request,
845 pctl->chip->free = sunxi_pinctrl_gpio_free,
846 pctl->chip->direction_input = sunxi_pinctrl_gpio_direction_input,
847 pctl->chip->direction_output = sunxi_pinctrl_gpio_direction_output,
848 pctl->chip->get = sunxi_pinctrl_gpio_get,
849 pctl->chip->set = sunxi_pinctrl_gpio_set,
850 pctl->chip->of_xlate = sunxi_pinctrl_gpio_of_xlate,
851 pctl->chip->to_irq = sunxi_pinctrl_gpio_to_irq,
852 pctl->chip->of_gpio_n_cells = 3,
853 pctl->chip->can_sleep = false,
854 pctl->chip->ngpio = round_up(last_pin, PINS_PER_BANK) -
855 pctl->desc->pin_base;
856 pctl->chip->label = dev_name(&pdev->dev);
857 pctl->chip->dev = &pdev->dev;
858 pctl->chip->base = pctl->desc->pin_base;
860 ret = gpiochip_add(pctl->chip);
864 for (i = 0; i < pctl->desc->npins; i++) {
865 const struct sunxi_desc_pin *pin = pctl->desc->pins + i;
867 ret = gpiochip_add_pin_range(pctl->chip, dev_name(&pdev->dev),
874 clk = devm_clk_get(&pdev->dev, NULL);
880 ret = clk_prepare_enable(clk);
884 pctl->irq = irq_of_parse_and_map(node, 0);
890 pctl->domain = irq_domain_add_linear(node, SUNXI_IRQ_NUMBER,
891 &irq_domain_simple_ops, NULL);
893 dev_err(&pdev->dev, "Couldn't register IRQ domain\n");
898 for (i = 0; i < SUNXI_IRQ_NUMBER; i++) {
899 int irqno = irq_create_mapping(pctl->domain, i);
901 irq_set_chip_and_handler(irqno, &sunxi_pinctrl_irq_chip,
903 irq_set_chip_data(irqno, pctl);
906 irq_set_chained_handler(pctl->irq, sunxi_pinctrl_irq_handler);
907 irq_set_handler_data(pctl->irq, pctl);
909 dev_info(&pdev->dev, "initialized sunXi PIO driver\n");
914 clk_disable_unprepare(clk);
916 if (gpiochip_remove(pctl->chip))
917 dev_err(&pdev->dev, "failed to remove gpio chip\n");
919 pinctrl_unregister(pctl->pctl_dev);