Lines Matching +full:reg +full:- +full:names
1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2011-2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
26 #include "pinctrl-at91.h"
95 * struct at91_pmx_func - describes AT91 pinmux functions
115 * struct at91_pmx_pin - describes an At91 pin mux
129 * struct at91_pin_group - describes an At91 pin group
134 * from the driver-local pin enumeration space
146 * struct at91_pinctrl_mux_ops - describes an AT91 mux ops group
221 for (i = 0; i < info->ngroups; i++) { in at91_pinctrl_find_group_by_name()
222 if (strcmp(info->groups[i].name, name)) in at91_pinctrl_find_group_by_name()
225 grp = &info->groups[i]; in at91_pinctrl_find_group_by_name()
226 dev_dbg(info->dev, "%s: %d 0:%d\n", name, grp->npins, grp->pins[0]); in at91_pinctrl_find_group_by_name()
237 return info->ngroups; in at91_get_groups_count()
245 return info->groups[selector].name; in at91_get_group_name()
254 if (selector >= info->ngroups) in at91_get_group_pins()
255 return -EINVAL; in at91_get_group_pins()
257 *pins = info->groups[selector].pins; in at91_get_group_pins()
258 *npins = info->groups[selector].npins; in at91_get_group_pins()
266 seq_printf(s, "%s", dev_name(pctldev->dev)); in at91_pin_dbg_show()
284 grp = at91_pinctrl_find_group_by_name(info, np->name); in at91_dt_node_to_map()
286 dev_err(info->dev, "unable to find group for node %pOFn\n", in at91_dt_node_to_map()
288 return -EINVAL; in at91_dt_node_to_map()
291 map_num += grp->npins; in at91_dt_node_to_map()
292 new_map = devm_kcalloc(pctldev->dev, map_num, sizeof(*new_map), in at91_dt_node_to_map()
295 return -ENOMEM; in at91_dt_node_to_map()
303 devm_kfree(pctldev->dev, new_map); in at91_dt_node_to_map()
304 return -EINVAL; in at91_dt_node_to_map()
307 new_map[0].data.mux.function = parent->name; in at91_dt_node_to_map()
308 new_map[0].data.mux.group = np->name; in at91_dt_node_to_map()
313 for (i = 0; i < grp->npins; i++) { in at91_dt_node_to_map()
316 pin_get_name(pctldev, grp->pins[i]); in at91_dt_node_to_map()
317 new_map[i].data.configs.configs = &grp->pins_conf[i].conf; in at91_dt_node_to_map()
321 dev_dbg(pctldev->dev, "maps: function %s group %s num %d\n", in at91_dt_node_to_map()
322 (*map)->data.mux.function, (*map)->data.mux.group, map_num); in at91_dt_node_to_map()
347 return gpio_chips[bank]->regbase; in pin_to_controller()
365 ? pin - MAX_NB_GPIO_PER_BANK/2 : pin); in two_bit_pin_value_shift_amount()
556 static inline u32 read_drive_strength(void __iomem *reg, unsigned pin) in read_drive_strength() argument
558 unsigned tmp = readl_relaxed(reg); in read_drive_strength()
587 tmp = DRIVE_STRENGTH_BIT_MSK(HI) - tmp; in at91_mux_sam9x5_get_drivestrength()
613 static void set_drive_strength(void __iomem *reg, unsigned pin, u32 strength) in set_drive_strength() argument
615 unsigned tmp = readl_relaxed(reg); in set_drive_strength()
621 writel_relaxed(tmp, reg); in set_drive_strength()
644 setting = DRIVE_STRENGTH_BIT_MSK(HI) - setting; in at91_mux_sam9x5_set_drivestrength()
760 if (pin->mux) { in at91_pin_dbg()
762 pin->bank + 'A', pin->pin, pin->mux - 1 + 'A', pin->conf); in at91_pin_dbg()
765 pin->bank + 'A', pin->pin, pin->conf); in at91_pin_dbg()
775 if (pin->bank >= gpio_banks) { in pin_check_config()
776 dev_err(info->dev, "%s: pin conf %d bank_id %d >= nbanks %d\n", in pin_check_config()
777 name, index, pin->bank, gpio_banks); in pin_check_config()
778 return -EINVAL; in pin_check_config()
781 if (!gpio_chips[pin->bank]) { in pin_check_config()
782 dev_err(info->dev, "%s: pin conf %d bank_id %d not enabled\n", in pin_check_config()
783 name, index, pin->bank); in pin_check_config()
784 return -ENXIO; in pin_check_config()
787 if (pin->pin >= MAX_NB_GPIO_PER_BANK) { in pin_check_config()
788 dev_err(info->dev, "%s: pin conf %d pin_bank_id %d >= %d\n", in pin_check_config()
789 name, index, pin->pin, MAX_NB_GPIO_PER_BANK); in pin_check_config()
790 return -EINVAL; in pin_check_config()
793 if (!pin->mux) in pin_check_config()
796 mux = pin->mux - 1; in pin_check_config()
798 if (mux >= info->nmux) { in pin_check_config()
799 dev_err(info->dev, "%s: pin conf %d mux_id %d >= nmux %d\n", in pin_check_config()
800 name, index, mux, info->nmux); in pin_check_config()
801 return -EINVAL; in pin_check_config()
804 if (!(info->mux_mask[pin->bank * info->nmux + mux] & 1 << pin->pin)) { in pin_check_config()
805 dev_err(info->dev, "%s: pin conf %d mux_id %d not supported for pio%c%d\n", in pin_check_config()
806 name, index, mux, pin->bank + 'A', pin->pin); in pin_check_config()
807 return -EINVAL; in pin_check_config()
828 const struct at91_pmx_pin *pins_conf = info->groups[group].pins_conf; in at91_pmx_set()
830 uint32_t npins = info->groups[group].npins; in at91_pmx_set()
835 dev_dbg(info->dev, "enable function %s group %s\n", in at91_pmx_set()
836 info->functions[selector].name, info->groups[group].name); in at91_pmx_set()
842 ret = pin_check_config(info, info->groups[group].name, i, pin); in at91_pmx_set()
849 at91_pin_dbg(info->dev, pin); in at91_pmx_set()
850 pio = pin_to_controller(info, pin->bank); in at91_pmx_set()
855 mask = pin_to_mask(pin->pin); in at91_pmx_set()
857 switch (pin->mux) { in at91_pmx_set()
862 info->ops->mux_A_periph(pio, mask); in at91_pmx_set()
865 info->ops->mux_B_periph(pio, mask); in at91_pmx_set()
868 if (!info->ops->mux_C_periph) in at91_pmx_set()
869 return -EINVAL; in at91_pmx_set()
870 info->ops->mux_C_periph(pio, mask); in at91_pmx_set()
873 if (!info->ops->mux_D_periph) in at91_pmx_set()
874 return -EINVAL; in at91_pmx_set()
875 info->ops->mux_D_periph(pio, mask); in at91_pmx_set()
878 if (pin->mux) in at91_pmx_set()
889 return info->nfunctions; in at91_pmx_get_funcs_count()
897 return info->functions[selector].name; in at91_pmx_get_func_name()
906 *groups = info->functions[selector].groups; in at91_pmx_get_groups()
907 *num_groups = info->functions[selector].ngroups; in at91_pmx_get_groups()
922 dev_err(npct->dev, "invalid range\n"); in at91_gpio_request_enable()
923 return -EINVAL; in at91_gpio_request_enable()
925 if (!range->gc) { in at91_gpio_request_enable()
926 dev_err(npct->dev, "missing GPIO chip in range\n"); in at91_gpio_request_enable()
927 return -EINVAL; in at91_gpio_request_enable()
929 chip = range->gc; in at91_gpio_request_enable()
932 dev_dbg(npct->dev, "enable pin %u as GPIO\n", offset); in at91_gpio_request_enable()
934 mask = 1 << (offset - chip->base); in at91_gpio_request_enable()
936 dev_dbg(npct->dev, "enable pin %u as PIO%c%d 0x%x\n", in at91_gpio_request_enable()
937 offset, 'A' + range->id, offset - chip->base, mask); in at91_gpio_request_enable()
939 writel_relaxed(mask, at91_chip->regbase + PIO_PER); in at91_gpio_request_enable()
950 dev_dbg(npct->dev, "disable pin %u as GPIO\n", offset); in at91_gpio_disable_free()
973 dev_dbg(info->dev, "%s:%d, pin_id=%d", __func__, __LINE__, pin_id); in at91_pinconf_get()
977 return -EINVAL; in at91_pinconf_get()
987 if (info->ops->get_deglitch && info->ops->get_deglitch(pio, pin)) in at91_pinconf_get()
989 if (info->ops->get_debounce && info->ops->get_debounce(pio, pin, &div)) in at91_pinconf_get()
991 if (info->ops->get_pulldown && info->ops->get_pulldown(pio, pin)) in at91_pinconf_get()
993 if (info->ops->get_schmitt_trig && info->ops->get_schmitt_trig(pio, pin)) in at91_pinconf_get()
995 if (info->ops->get_drivestrength) in at91_pinconf_get()
996 *config |= (info->ops->get_drivestrength(pio, pin) in at91_pinconf_get()
998 if (info->ops->get_slewrate) in at91_pinconf_get()
999 *config |= (info->ops->get_slewrate(pio, pin) << SLEWRATE_SHIFT); in at91_pinconf_get()
1020 dev_dbg(info->dev, in at91_pinconf_set()
1026 return -EINVAL; in at91_pinconf_set()
1032 return -EINVAL; in at91_pinconf_set()
1038 if (info->ops->set_deglitch) in at91_pinconf_set()
1039 info->ops->set_deglitch(pio, mask, config & DEGLITCH); in at91_pinconf_set()
1040 if (info->ops->set_debounce) in at91_pinconf_set()
1041 info->ops->set_debounce(pio, mask, config & DEBOUNCE, in at91_pinconf_set()
1043 if (info->ops->set_pulldown) in at91_pinconf_set()
1044 info->ops->set_pulldown(pio, mask, config & PULL_DOWN); in at91_pinconf_set()
1045 if (info->ops->disable_schmitt_trig && config & DIS_SCHMIT) in at91_pinconf_set()
1046 info->ops->disable_schmitt_trig(pio, mask); in at91_pinconf_set()
1047 if (info->ops->set_drivestrength) in at91_pinconf_set()
1048 info->ops->set_drivestrength(pio, pin, in at91_pinconf_set()
1051 if (info->ops->set_slewrate) in at91_pinconf_set()
1052 info->ops->set_slewrate(pio, pin, in at91_pinconf_set()
1126 static const char *gpio_compat = "atmel,at91rm9200-gpio";
1136 info->nactive_banks++; in at91_pinctrl_child_count()
1138 info->nfunctions++; in at91_pinctrl_child_count()
1139 info->ngroups += of_get_child_count(child); in at91_pinctrl_child_count()
1151 list = of_get_property(np, "atmel,mux-mask", &size); in at91_pinctrl_mux_mask()
1153 dev_err(info->dev, "can not read the mux-mask of %d\n", size); in at91_pinctrl_mux_mask()
1154 return -EINVAL; in at91_pinctrl_mux_mask()
1159 dev_err(info->dev, "wrong mux mask array should be by %d\n", gpio_banks); in at91_pinctrl_mux_mask()
1160 return -EINVAL; in at91_pinctrl_mux_mask()
1162 info->nmux = size / gpio_banks; in at91_pinctrl_mux_mask()
1164 info->mux_mask = devm_kcalloc(info->dev, size, sizeof(u32), in at91_pinctrl_mux_mask()
1166 if (!info->mux_mask) in at91_pinctrl_mux_mask()
1167 return -ENOMEM; in at91_pinctrl_mux_mask()
1169 ret = of_property_read_u32_array(np, "atmel,mux-mask", in at91_pinctrl_mux_mask()
1170 info->mux_mask, size); in at91_pinctrl_mux_mask()
1172 dev_err(info->dev, "can not read the mux-mask of %d\n", size); in at91_pinctrl_mux_mask()
1185 dev_dbg(info->dev, "group(%d): %pOFn\n", index, np); in at91_pinctrl_parse_groups()
1188 grp->name = np->name; in at91_pinctrl_parse_groups()
1198 dev_err(info->dev, "wrong pins number or pins and configs should be by 4\n"); in at91_pinctrl_parse_groups()
1199 return -EINVAL; in at91_pinctrl_parse_groups()
1202 grp->npins = size / 4; in at91_pinctrl_parse_groups()
1203 pin = grp->pins_conf = devm_kcalloc(info->dev, in at91_pinctrl_parse_groups()
1204 grp->npins, in at91_pinctrl_parse_groups()
1207 grp->pins = devm_kcalloc(info->dev, grp->npins, sizeof(unsigned int), in at91_pinctrl_parse_groups()
1209 if (!grp->pins_conf || !grp->pins) in at91_pinctrl_parse_groups()
1210 return -ENOMEM; in at91_pinctrl_parse_groups()
1213 pin->bank = be32_to_cpu(*list++); in at91_pinctrl_parse_groups()
1214 pin->pin = be32_to_cpu(*list++); in at91_pinctrl_parse_groups()
1215 grp->pins[j] = pin->bank * MAX_NB_GPIO_PER_BANK + pin->pin; in at91_pinctrl_parse_groups()
1216 pin->mux = be32_to_cpu(*list++); in at91_pinctrl_parse_groups()
1217 pin->conf = be32_to_cpu(*list++); in at91_pinctrl_parse_groups()
1219 at91_pin_dbg(info->dev, pin); in at91_pinctrl_parse_groups()
1236 dev_dbg(info->dev, "parse function(%d): %pOFn\n", index, np); in at91_pinctrl_parse_functions()
1238 func = &info->functions[index]; in at91_pinctrl_parse_functions()
1241 func->name = np->name; in at91_pinctrl_parse_functions()
1242 func->ngroups = of_get_child_count(np); in at91_pinctrl_parse_functions()
1243 if (func->ngroups == 0) { in at91_pinctrl_parse_functions()
1244 dev_err(info->dev, "no groups defined\n"); in at91_pinctrl_parse_functions()
1245 return -EINVAL; in at91_pinctrl_parse_functions()
1247 func->groups = devm_kcalloc(info->dev, in at91_pinctrl_parse_functions()
1248 func->ngroups, sizeof(char *), GFP_KERNEL); in at91_pinctrl_parse_functions()
1249 if (!func->groups) in at91_pinctrl_parse_functions()
1250 return -ENOMEM; in at91_pinctrl_parse_functions()
1253 func->groups[i] = child->name; in at91_pinctrl_parse_functions()
1254 grp = &info->groups[grp_index++]; in at91_pinctrl_parse_functions()
1266 { .compatible = "atmel,sama5d3-pinctrl", .data = &sama5d3_ops },
1267 { .compatible = "atmel,at91sam9x5-pinctrl", .data = &at91sam9x5_ops },
1268 { .compatible = "atmel,at91rm9200-pinctrl", .data = &at91rm9200_ops },
1269 { .compatible = "microchip,sam9x60-pinctrl", .data = &sam9x60_ops },
1279 struct device_node *np = pdev->dev.of_node; in at91_pinctrl_probe_dt()
1283 return -ENODEV; in at91_pinctrl_probe_dt()
1285 info->dev = &pdev->dev; in at91_pinctrl_probe_dt()
1286 info->ops = (struct at91_pinctrl_mux_ops *) in at91_pinctrl_probe_dt()
1287 of_match_device(at91_pinctrl_of_match, &pdev->dev)->data; in at91_pinctrl_probe_dt()
1291 dev_err(&pdev->dev, "you need to specify at least one gpio-controller\n"); in at91_pinctrl_probe_dt()
1292 return -EINVAL; in at91_pinctrl_probe_dt()
1299 dev_dbg(&pdev->dev, "nmux = %d\n", info->nmux); in at91_pinctrl_probe_dt()
1301 dev_dbg(&pdev->dev, "mux-mask\n"); in at91_pinctrl_probe_dt()
1302 tmp = info->mux_mask; in at91_pinctrl_probe_dt()
1304 for (j = 0; j < info->nmux; j++, tmp++) { in at91_pinctrl_probe_dt()
1305 dev_dbg(&pdev->dev, "%d:%d\t0x%x\n", i, j, tmp[0]); in at91_pinctrl_probe_dt()
1309 dev_dbg(&pdev->dev, "nfunctions = %d\n", info->nfunctions); in at91_pinctrl_probe_dt()
1310 dev_dbg(&pdev->dev, "ngroups = %d\n", info->ngroups); in at91_pinctrl_probe_dt()
1311 info->functions = devm_kcalloc(&pdev->dev, in at91_pinctrl_probe_dt()
1312 info->nfunctions, in at91_pinctrl_probe_dt()
1315 if (!info->functions) in at91_pinctrl_probe_dt()
1316 return -ENOMEM; in at91_pinctrl_probe_dt()
1318 info->groups = devm_kcalloc(&pdev->dev, in at91_pinctrl_probe_dt()
1319 info->ngroups, in at91_pinctrl_probe_dt()
1322 if (!info->groups) in at91_pinctrl_probe_dt()
1323 return -ENOMEM; in at91_pinctrl_probe_dt()
1325 dev_dbg(&pdev->dev, "nbanks = %d\n", gpio_banks); in at91_pinctrl_probe_dt()
1326 dev_dbg(&pdev->dev, "nfunctions = %d\n", info->nfunctions); in at91_pinctrl_probe_dt()
1327 dev_dbg(&pdev->dev, "ngroups = %d\n", info->ngroups); in at91_pinctrl_probe_dt()
1336 dev_err(&pdev->dev, "failed to parse function\n"); in at91_pinctrl_probe_dt()
1351 info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); in at91_pinctrl_probe()
1353 return -ENOMEM; in at91_pinctrl_probe()
1368 if (ngpio_chips_enabled < info->nactive_banks) { in at91_pinctrl_probe()
1369 dev_warn(&pdev->dev, in at91_pinctrl_probe()
1371 ngpio_chips_enabled, info->nactive_banks); in at91_pinctrl_probe()
1372 devm_kfree(&pdev->dev, info); in at91_pinctrl_probe()
1373 return -EPROBE_DEFER; in at91_pinctrl_probe()
1376 at91_pinctrl_desc.name = dev_name(&pdev->dev); in at91_pinctrl_probe()
1379 devm_kcalloc(&pdev->dev, in at91_pinctrl_probe()
1384 return -ENOMEM; in at91_pinctrl_probe()
1388 pdesc->number = k; in at91_pinctrl_probe()
1389 pdesc->name = kasprintf(GFP_KERNEL, "pio%c%d", i + 'A', j); in at91_pinctrl_probe()
1395 info->pctl = devm_pinctrl_register(&pdev->dev, &at91_pinctrl_desc, in at91_pinctrl_probe()
1398 if (IS_ERR(info->pctl)) { in at91_pinctrl_probe()
1399 dev_err(&pdev->dev, "could not register AT91 pinctrl driver\n"); in at91_pinctrl_probe()
1400 return PTR_ERR(info->pctl); in at91_pinctrl_probe()
1406 pinctrl_add_gpio_range(info->pctl, &gpio_chips[i]->range); in at91_pinctrl_probe()
1408 dev_info(&pdev->dev, "initialized AT91 pinctrl driver\n"); in at91_pinctrl_probe()
1416 void __iomem *pio = at91_gpio->regbase; in at91_gpio_get_direction()
1430 void __iomem *pio = at91_gpio->regbase; in at91_gpio_direction_input()
1440 void __iomem *pio = at91_gpio->regbase; in at91_gpio_get()
1452 void __iomem *pio = at91_gpio->regbase; in at91_gpio_set()
1462 void __iomem *pio = at91_gpio->regbase; in at91_gpio_set_multiple()
1464 #define BITS_MASK(bits) (((bits) == 32) ? ~0U : (BIT(bits) - 1)) in at91_gpio_set_multiple()
1466 uint32_t set_mask = (*mask & *bits) & BITS_MASK(chip->ngpio); in at91_gpio_set_multiple()
1467 uint32_t clear_mask = (*mask & ~(*bits)) & BITS_MASK(chip->ngpio); in at91_gpio_set_multiple()
1477 void __iomem *pio = at91_gpio->regbase; in at91_gpio_direction_output()
1492 void __iomem *pio = at91_gpio->regbase; in at91_gpio_dbg_show()
1498 mode = at91_gpio->ops->get_periph(pio, mask); in at91_gpio_dbg_show()
1500 gpio_label, chip->label, i); in at91_gpio_dbg_show()
1511 mode + 'A' - 1); in at91_gpio_dbg_show()
1536 void __iomem *pio = at91_gpio->regbase; in gpio_irq_mask()
1537 unsigned mask = 1 << d->hwirq; in gpio_irq_mask()
1546 void __iomem *pio = at91_gpio->regbase; in gpio_irq_unmask()
1547 unsigned mask = 1 << d->hwirq; in gpio_irq_unmask()
1560 return -EINVAL; in gpio_irq_type()
1568 void __iomem *pio = at91_gpio->regbase; in alt_gpio_irq_type()
1569 unsigned mask = 1 << d->hwirq; in alt_gpio_irq_type()
1602 pr_warn("AT91: No type for GPIO irq offset %d\n", d->irq); in alt_gpio_irq_type()
1603 return -EINVAL; in alt_gpio_irq_type()
1625 unsigned bank = at91_gpio->pioc_idx; in gpio_irq_set_wake()
1626 unsigned mask = 1 << d->hwirq; in gpio_irq_set_wake()
1629 return -EINVAL; in gpio_irq_set_wake()
1636 irq_set_irq_wake(at91_gpio->pioc_virq, state); in gpio_irq_set_wake()
1651 pio = gpio_chips[i]->regbase; in at91_pinctrl_gpio_suspend()
1658 clk_disable_unprepare(gpio_chips[i]->clock); in at91_pinctrl_gpio_suspend()
1660 printk(KERN_DEBUG "GPIO-%c may wake for %08x\n", in at91_pinctrl_gpio_suspend()
1675 pio = gpio_chips[i]->regbase; in at91_pinctrl_gpio_resume()
1678 clk_prepare_enable(gpio_chips[i]->clock); in at91_pinctrl_gpio_resume()
1694 void __iomem *pio = at91_gpio->regbase; in gpio_irq_handler()
1706 if (!at91_gpio->next) in gpio_irq_handler()
1708 at91_gpio = at91_gpio->next; in gpio_irq_handler()
1709 pio = at91_gpio->regbase; in gpio_irq_handler()
1710 gpio_chip = &at91_gpio->chip; in gpio_irq_handler()
1716 gpio_chip->irq.domain, n)); in gpio_irq_handler()
1720 /* now it may re-trigger */ in gpio_irq_handler()
1728 struct irq_data *d = irq_get_irq_data(at91_gpio->pioc_virq); in at91_gpio_of_irq_setup()
1733 gpio_irqchip = devm_kzalloc(&pdev->dev, sizeof(*gpio_irqchip), in at91_gpio_of_irq_setup()
1736 return -ENOMEM; in at91_gpio_of_irq_setup()
1738 at91_gpio->pioc_hwirq = irqd_to_hwirq(d); in at91_gpio_of_irq_setup()
1740 gpio_irqchip->name = "GPIO"; in at91_gpio_of_irq_setup()
1741 gpio_irqchip->irq_ack = gpio_irq_ack; in at91_gpio_of_irq_setup()
1742 gpio_irqchip->irq_disable = gpio_irq_mask; in at91_gpio_of_irq_setup()
1743 gpio_irqchip->irq_mask = gpio_irq_mask; in at91_gpio_of_irq_setup()
1744 gpio_irqchip->irq_unmask = gpio_irq_unmask; in at91_gpio_of_irq_setup()
1745 gpio_irqchip->irq_set_wake = gpio_irq_set_wake, in at91_gpio_of_irq_setup()
1746 gpio_irqchip->irq_set_type = at91_gpio->ops->irq_type; in at91_gpio_of_irq_setup()
1749 writel_relaxed(~0, at91_gpio->regbase + PIO_IDR); in at91_gpio_of_irq_setup()
1756 girq = &at91_gpio->chip.irq; in at91_gpio_of_irq_setup()
1757 girq->chip = gpio_irqchip; in at91_gpio_of_irq_setup()
1758 girq->default_type = IRQ_TYPE_NONE; in at91_gpio_of_irq_setup()
1759 girq->handler = handle_edge_irq; in at91_gpio_of_irq_setup()
1766 gpiochip_prev = irq_get_handler_data(at91_gpio->pioc_virq); in at91_gpio_of_irq_setup()
1768 girq->parent_handler = gpio_irq_handler; in at91_gpio_of_irq_setup()
1769 girq->num_parents = 1; in at91_gpio_of_irq_setup()
1770 girq->parents = devm_kcalloc(&pdev->dev, 1, in at91_gpio_of_irq_setup()
1771 sizeof(*girq->parents), in at91_gpio_of_irq_setup()
1773 if (!girq->parents) in at91_gpio_of_irq_setup()
1774 return -ENOMEM; in at91_gpio_of_irq_setup()
1775 girq->parents[0] = at91_gpio->pioc_virq; in at91_gpio_of_irq_setup()
1782 if (prev->next) { in at91_gpio_of_irq_setup()
1783 prev = prev->next; in at91_gpio_of_irq_setup()
1785 prev->next = at91_gpio; in at91_gpio_of_irq_setup()
1790 return -EINVAL; in at91_gpio_of_irq_setup()
1809 { .compatible = "atmel,at91sam9x5-gpio", .data = &at91sam9x5_ops, },
1810 { .compatible = "atmel,at91rm9200-gpio", .data = &at91rm9200_ops },
1811 { .compatible = "microchip,sam9x60-gpio", .data = &sam9x60_ops },
1817 struct device_node *np = pdev->dev.of_node; in at91_gpio_probe()
1825 char **names; in at91_gpio_probe() local
1829 ret = -EBUSY; in at91_gpio_probe()
1839 at91_chip = devm_kzalloc(&pdev->dev, sizeof(*at91_chip), GFP_KERNEL); in at91_gpio_probe()
1841 ret = -ENOMEM; in at91_gpio_probe()
1845 at91_chip->regbase = devm_platform_ioremap_resource(pdev, 0); in at91_gpio_probe()
1846 if (IS_ERR(at91_chip->regbase)) { in at91_gpio_probe()
1847 ret = PTR_ERR(at91_chip->regbase); in at91_gpio_probe()
1851 at91_chip->ops = (struct at91_pinctrl_mux_ops *) in at91_gpio_probe()
1852 of_match_device(at91_gpio_of_match, &pdev->dev)->data; in at91_gpio_probe()
1853 at91_chip->pioc_virq = irq; in at91_gpio_probe()
1854 at91_chip->pioc_idx = alias_idx; in at91_gpio_probe()
1856 at91_chip->clock = devm_clk_get(&pdev->dev, NULL); in at91_gpio_probe()
1857 if (IS_ERR(at91_chip->clock)) { in at91_gpio_probe()
1858 dev_err(&pdev->dev, "failed to get clock, ignoring.\n"); in at91_gpio_probe()
1859 ret = PTR_ERR(at91_chip->clock); in at91_gpio_probe()
1863 ret = clk_prepare_enable(at91_chip->clock); in at91_gpio_probe()
1865 dev_err(&pdev->dev, "failed to prepare and enable clock, ignoring.\n"); in at91_gpio_probe()
1869 at91_chip->chip = at91_gpio_template; in at91_gpio_probe()
1871 chip = &at91_chip->chip; in at91_gpio_probe()
1872 chip->of_node = np; in at91_gpio_probe()
1873 chip->label = dev_name(&pdev->dev); in at91_gpio_probe()
1874 chip->parent = &pdev->dev; in at91_gpio_probe()
1875 chip->owner = THIS_MODULE; in at91_gpio_probe()
1876 chip->base = alias_idx * MAX_NB_GPIO_PER_BANK; in at91_gpio_probe()
1878 if (!of_property_read_u32(np, "#gpio-lines", &ngpio)) { in at91_gpio_probe()
1880 pr_err("at91_gpio.%d, gpio-nb >= %d failback to %d\n", in at91_gpio_probe()
1883 chip->ngpio = ngpio; in at91_gpio_probe()
1886 names = devm_kcalloc(&pdev->dev, chip->ngpio, sizeof(char *), in at91_gpio_probe()
1889 if (!names) { in at91_gpio_probe()
1890 ret = -ENOMEM; in at91_gpio_probe()
1894 for (i = 0; i < chip->ngpio; i++) in at91_gpio_probe()
1895 names[i] = kasprintf(GFP_KERNEL, "pio%c%d", alias_idx + 'A', i); in at91_gpio_probe()
1897 chip->names = (const char *const *)names; in at91_gpio_probe()
1899 range = &at91_chip->range; in at91_gpio_probe()
1900 range->name = chip->label; in at91_gpio_probe()
1901 range->id = alias_idx; in at91_gpio_probe()
1902 range->pin_base = range->base = range->id * MAX_NB_GPIO_PER_BANK; in at91_gpio_probe()
1904 range->npins = chip->ngpio; in at91_gpio_probe()
1905 range->gc = chip; in at91_gpio_probe()
1918 dev_info(&pdev->dev, "at address %p\n", at91_chip->regbase); in at91_gpio_probe()
1924 clk_disable_unprepare(at91_chip->clock); in at91_gpio_probe()
1926 dev_err(&pdev->dev, "Failure %i for GPIO %i\n", ret, alias_idx); in at91_gpio_probe()
1933 .name = "gpio-at91",
1941 .name = "pinctrl-at91",