Lines Matching +full:hte +full:- +full:gpio
1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2016-2022 NVIDIA Corporation
9 #include <linux/gpio/driver.h>
10 #include <linux/hte.h>
18 #include <dt-bindings/gpio/tegra186-gpio.h>
19 #include <dt-bindings/gpio/tegra194-gpio.h>
20 #include <dt-bindings/gpio/tegra234-gpio.h>
21 #include <dt-bindings/gpio/tegra241-gpio.h>
98 struct gpio_chip gpio; member
111 tegra186_gpio_get_port(struct tegra_gpio *gpio, unsigned int *pin) in tegra186_gpio_get_port() argument
115 for (i = 0; i < gpio->soc->num_ports; i++) { in tegra186_gpio_get_port()
116 const struct tegra_gpio_port *port = &gpio->soc->ports[i]; in tegra186_gpio_get_port()
118 if (*pin >= start && *pin < start + port->pins) { in tegra186_gpio_get_port()
119 *pin -= start; in tegra186_gpio_get_port()
123 start += port->pins; in tegra186_gpio_get_port()
129 static void __iomem *tegra186_gpio_get_base(struct tegra_gpio *gpio, in tegra186_gpio_get_base() argument
135 port = tegra186_gpio_get_port(gpio, &pin); in tegra186_gpio_get_base()
139 offset = port->bank * 0x1000 + port->port * 0x200; in tegra186_gpio_get_base()
141 return gpio->base + offset + pin * 0x20; in tegra186_gpio_get_base()
144 static void __iomem *tegra186_gpio_get_secure_base(struct tegra_gpio *gpio, in tegra186_gpio_get_secure_base() argument
150 port = tegra186_gpio_get_port(gpio, &pin); in tegra186_gpio_get_secure_base()
154 offset = port->bank * 0x1000 + port->port * TEGRA186_GPIO_SCR_PORT_SIZE; in tegra186_gpio_get_secure_base()
156 return gpio->secure + offset + pin * TEGRA186_GPIO_SCR_PIN_SIZE; in tegra186_gpio_get_secure_base()
159 static inline bool tegra186_gpio_is_accessible(struct tegra_gpio *gpio, unsigned int pin) in tegra186_gpio_is_accessible() argument
164 secure = tegra186_gpio_get_secure_base(gpio, pin); in tegra186_gpio_is_accessible()
166 if (gpio->soc->has_vm_support) { in tegra186_gpio_is_accessible()
176 * registers for given GPIO pin. in tegra186_gpio_is_accessible()
179 * GPIO pin. in tegra186_gpio_is_accessible()
194 struct tegra_gpio *gpio = gpiochip_get_data(chip); in tegra186_init_valid_mask() local
198 if (!tegra186_gpio_is_accessible(gpio, j)) in tegra186_init_valid_mask()
207 struct tegra_gpio *gpio = gpiochip_get_data(chip); in tegra186_gpio_get_direction() local
211 base = tegra186_gpio_get_base(gpio, offset); in tegra186_gpio_get_direction()
213 return -ENODEV; in tegra186_gpio_get_direction()
225 struct tegra_gpio *gpio = gpiochip_get_data(chip); in tegra186_gpio_direction_input() local
229 base = tegra186_gpio_get_base(gpio, offset); in tegra186_gpio_direction_input()
231 return -ENODEV; in tegra186_gpio_direction_input()
248 struct tegra_gpio *gpio = gpiochip_get_data(chip); in tegra186_gpio_direction_output() local
253 chip->set(chip, offset, level); in tegra186_gpio_direction_output()
255 base = tegra186_gpio_get_base(gpio, offset); in tegra186_gpio_direction_output()
257 return -EINVAL; in tegra186_gpio_direction_output()
277 struct tegra_gpio *gpio; in tegra186_gpio_en_hw_ts() local
282 return -EINVAL; in tegra186_gpio_en_hw_ts()
284 gpio = gpiochip_get_data(gc); in tegra186_gpio_en_hw_ts()
285 if (!gpio) in tegra186_gpio_en_hw_ts()
286 return -ENODEV; in tegra186_gpio_en_hw_ts()
288 base = tegra186_gpio_get_base(gpio, offset); in tegra186_gpio_en_hw_ts()
290 return -EINVAL; in tegra186_gpio_en_hw_ts()
312 struct tegra_gpio *gpio; in tegra186_gpio_dis_hw_ts() local
317 return -EINVAL; in tegra186_gpio_dis_hw_ts()
319 gpio = gpiochip_get_data(gc); in tegra186_gpio_dis_hw_ts()
320 if (!gpio) in tegra186_gpio_dis_hw_ts()
321 return -ENODEV; in tegra186_gpio_dis_hw_ts()
323 base = tegra186_gpio_get_base(gpio, offset); in tegra186_gpio_dis_hw_ts()
325 return -EINVAL; in tegra186_gpio_dis_hw_ts()
344 struct tegra_gpio *gpio = gpiochip_get_data(chip); in tegra186_gpio_get() local
348 base = tegra186_gpio_get_base(gpio, offset); in tegra186_gpio_get()
350 return -ENODEV; in tegra186_gpio_get()
364 struct tegra_gpio *gpio = gpiochip_get_data(chip); in tegra186_gpio_set() local
368 base = tegra186_gpio_get_base(gpio, offset); in tegra186_gpio_set()
385 struct tegra_gpio *gpio = gpiochip_get_data(chip); in tegra186_gpio_set_config() local
389 base = tegra186_gpio_get_base(gpio, offset); in tegra186_gpio_set_config()
391 return -ENXIO; in tegra186_gpio_set_config()
394 return -ENOTSUPP; in tegra186_gpio_set_config()
399 * The Tegra186 GPIO controller supports a maximum of 255 ms debounce in tegra186_gpio_set_config()
403 return -EINVAL; in tegra186_gpio_set_config()
419 struct tegra_gpio *gpio = gpiochip_get_data(chip); in tegra186_gpio_add_pin_ranges() local
425 if (!gpio->soc->pinmux || gpio->soc->num_pin_ranges == 0) in tegra186_gpio_add_pin_ranges()
428 np = of_find_compatible_node(NULL, NULL, gpio->soc->pinmux); in tegra186_gpio_add_pin_ranges()
430 return -ENODEV; in tegra186_gpio_add_pin_ranges()
435 return -EPROBE_DEFER; in tegra186_gpio_add_pin_ranges()
437 for (i = 0; i < gpio->soc->num_pin_ranges; i++) { in tegra186_gpio_add_pin_ranges()
438 unsigned int pin = gpio->soc->pin_ranges[i].offset, port; in tegra186_gpio_add_pin_ranges()
439 const char *group = gpio->soc->pin_ranges[i].group; in tegra186_gpio_add_pin_ranges()
444 if (port >= gpio->soc->num_ports) { in tegra186_gpio_add_pin_ranges()
445 dev_warn(chip->parent, "invalid port %u for %s\n", in tegra186_gpio_add_pin_ranges()
451 pin += gpio->soc->ports[j].pins; in tegra186_gpio_add_pin_ranges()
465 struct tegra_gpio *gpio = gpiochip_get_data(chip); in tegra186_gpio_of_xlate() local
468 if (WARN_ON(chip->of_gpio_n_cells < 2)) in tegra186_gpio_of_xlate()
469 return -EINVAL; in tegra186_gpio_of_xlate()
471 if (WARN_ON(spec->args_count < chip->of_gpio_n_cells)) in tegra186_gpio_of_xlate()
472 return -EINVAL; in tegra186_gpio_of_xlate()
474 port = spec->args[0] / 8; in tegra186_gpio_of_xlate()
475 pin = spec->args[0] % 8; in tegra186_gpio_of_xlate()
477 if (port >= gpio->soc->num_ports) { in tegra186_gpio_of_xlate()
478 dev_err(chip->parent, "invalid port number: %u\n", port); in tegra186_gpio_of_xlate()
479 return -EINVAL; in tegra186_gpio_of_xlate()
483 offset += gpio->soc->ports[i].pins; in tegra186_gpio_of_xlate()
486 *flags = spec->args[1]; in tegra186_gpio_of_xlate()
491 #define to_tegra_gpio(x) container_of((x), struct tegra_gpio, gpio)
496 struct tegra_gpio *gpio = to_tegra_gpio(gc); in tegra186_irq_ack() local
499 base = tegra186_gpio_get_base(gpio, data->hwirq); in tegra186_irq_ack()
509 struct tegra_gpio *gpio = to_tegra_gpio(gc); in tegra186_irq_mask() local
513 base = tegra186_gpio_get_base(gpio, data->hwirq); in tegra186_irq_mask()
521 gpiochip_disable_irq(&gpio->gpio, data->hwirq); in tegra186_irq_mask()
527 struct tegra_gpio *gpio = to_tegra_gpio(gc); in tegra186_irq_unmask() local
531 base = tegra186_gpio_get_base(gpio, data->hwirq); in tegra186_irq_unmask()
535 gpiochip_enable_irq(&gpio->gpio, data->hwirq); in tegra186_irq_unmask()
545 struct tegra_gpio *gpio = to_tegra_gpio(gc); in tegra186_irq_set_type() local
549 base = tegra186_gpio_get_base(gpio, data->hwirq); in tegra186_irq_set_type()
551 return -ENODEV; in tegra186_irq_set_type()
584 return -EINVAL; in tegra186_irq_set_type()
594 if (data->parent_data) in tegra186_irq_set_type()
602 if (data->parent_data) in tegra186_irq_set_wake()
612 seq_printf(p, dev_name(gc->parent)); in tegra186_irq_print_chip()
628 struct tegra_gpio *gpio = irq_desc_get_handler_data(desc); in tegra186_gpio_irq() local
629 struct irq_domain *domain = gpio->gpio.irq.domain; in tegra186_gpio_irq()
636 for (i = 0; i < gpio->soc->num_ports; i++) { in tegra186_gpio_irq()
637 const struct tegra_gpio_port *port = &gpio->soc->ports[i]; in tegra186_gpio_irq()
642 base = gpio->base + port->bank * 0x1000 + port->port * 0x200; in tegra186_gpio_irq()
645 for (j = 0; j < gpio->num_irqs_per_bank; j++) { in tegra186_gpio_irq()
646 if (parent == gpio->irq[port->bank * gpio->num_irqs_per_bank + j]) in tegra186_gpio_irq()
650 if (j == gpio->num_irqs_per_bank) in tegra186_gpio_irq()
655 for_each_set_bit(pin, &value, port->pins) { in tegra186_gpio_irq()
661 offset += port->pins; in tegra186_gpio_irq()
672 struct tegra_gpio *gpio = gpiochip_get_data(domain->host_data); in tegra186_gpio_irq_domain_translate() local
675 if (WARN_ON(gpio->gpio.of_gpio_n_cells < 2)) in tegra186_gpio_irq_domain_translate()
676 return -EINVAL; in tegra186_gpio_irq_domain_translate()
678 if (WARN_ON(fwspec->param_count < gpio->gpio.of_gpio_n_cells)) in tegra186_gpio_irq_domain_translate()
679 return -EINVAL; in tegra186_gpio_irq_domain_translate()
681 port = fwspec->param[0] / 8; in tegra186_gpio_irq_domain_translate()
682 pin = fwspec->param[0] % 8; in tegra186_gpio_irq_domain_translate()
684 if (port >= gpio->soc->num_ports) in tegra186_gpio_irq_domain_translate()
685 return -EINVAL; in tegra186_gpio_irq_domain_translate()
688 offset += gpio->soc->ports[i].pins; in tegra186_gpio_irq_domain_translate()
690 *type = fwspec->param[1] & IRQ_TYPE_SENSE_MASK; in tegra186_gpio_irq_domain_translate()
701 struct tegra_gpio *gpio = gpiochip_get_data(chip); in tegra186_gpio_populate_parent_fwspec() local
702 struct irq_fwspec *fwspec = &gfwspec->fwspec; in tegra186_gpio_populate_parent_fwspec()
704 fwspec->fwnode = chip->irq.parent_domain->fwnode; in tegra186_gpio_populate_parent_fwspec()
705 fwspec->param_count = 3; in tegra186_gpio_populate_parent_fwspec()
706 fwspec->param[0] = gpio->soc->instance; in tegra186_gpio_populate_parent_fwspec()
707 fwspec->param[1] = parent_hwirq; in tegra186_gpio_populate_parent_fwspec()
708 fwspec->param[2] = parent_type; in tegra186_gpio_populate_parent_fwspec()
719 *parent_hwirq = chip->irq.child_offset_to_irq(chip, hwirq); in tegra186_gpio_child_to_parent_hwirq()
728 struct tegra_gpio *gpio = gpiochip_get_data(chip); in tegra186_gpio_child_offset_to_irq() local
731 for (i = 0; i < gpio->soc->num_ports; i++) { in tegra186_gpio_child_offset_to_irq()
732 if (offset < gpio->soc->ports[i].pins) in tegra186_gpio_child_offset_to_irq()
735 offset -= gpio->soc->ports[i].pins; in tegra186_gpio_child_offset_to_irq()
742 { .compatible = "nvidia,tegra186-pmc" },
743 { .compatible = "nvidia,tegra194-pmc" },
744 { .compatible = "nvidia,tegra234-pmc" },
748 static void tegra186_gpio_init_route_mapping(struct tegra_gpio *gpio) in tegra186_gpio_init_route_mapping() argument
750 struct device *dev = gpio->gpio.parent; in tegra186_gpio_init_route_mapping()
754 for (i = 0; i < gpio->soc->num_ports; i++) { in tegra186_gpio_init_route_mapping()
755 const struct tegra_gpio_port *port = &gpio->soc->ports[i]; in tegra186_gpio_init_route_mapping()
756 unsigned int offset, p = port->port; in tegra186_gpio_init_route_mapping()
759 base = gpio->secure + port->bank * 0x1000 + 0x800; in tegra186_gpio_init_route_mapping()
774 port->name); in tegra186_gpio_init_route_mapping()
779 * By default we only want to route GPIO pins to IRQ 0. This works in tegra186_gpio_init_route_mapping()
781 * and hence all GPIO pins are owned by Linux. in tegra186_gpio_init_route_mapping()
788 value = BIT(port->pins) - 1; in tegra186_gpio_init_route_mapping()
794 static unsigned int tegra186_gpio_irqs_per_bank(struct tegra_gpio *gpio) in tegra186_gpio_irqs_per_bank() argument
796 struct device *dev = gpio->gpio.parent; in tegra186_gpio_irqs_per_bank()
798 if (gpio->num_irq > gpio->num_banks) { in tegra186_gpio_irqs_per_bank()
799 if (gpio->num_irq % gpio->num_banks != 0) in tegra186_gpio_irqs_per_bank()
803 if (gpio->num_irq < gpio->num_banks) in tegra186_gpio_irqs_per_bank()
806 gpio->num_irqs_per_bank = gpio->num_irq / gpio->num_banks; in tegra186_gpio_irqs_per_bank()
808 if (gpio->num_irqs_per_bank > gpio->soc->num_irqs_per_bank) in tegra186_gpio_irqs_per_bank()
815 gpio->num_irq, gpio->num_banks); in tegra186_gpio_irqs_per_bank()
816 return -EINVAL; in tegra186_gpio_irqs_per_bank()
823 struct tegra_gpio *gpio; in tegra186_gpio_probe() local
829 gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL); in tegra186_gpio_probe()
830 if (!gpio) in tegra186_gpio_probe()
831 return -ENOMEM; in tegra186_gpio_probe()
833 gpio->soc = device_get_match_data(&pdev->dev); in tegra186_gpio_probe()
834 gpio->gpio.label = gpio->soc->name; in tegra186_gpio_probe()
835 gpio->gpio.parent = &pdev->dev; in tegra186_gpio_probe()
838 for (i = 0; i < gpio->soc->num_ports; i++) in tegra186_gpio_probe()
839 if (gpio->soc->ports[i].bank > gpio->num_banks) in tegra186_gpio_probe()
840 gpio->num_banks = gpio->soc->ports[i].bank; in tegra186_gpio_probe()
842 gpio->num_banks++; in tegra186_gpio_probe()
848 gpio->secure = devm_ioremap_resource(&pdev->dev, res); in tegra186_gpio_probe()
849 if (IS_ERR(gpio->secure)) in tegra186_gpio_probe()
850 return PTR_ERR(gpio->secure); in tegra186_gpio_probe()
852 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "gpio"); in tegra186_gpio_probe()
855 gpio->base = devm_ioremap_resource(&pdev->dev, res); in tegra186_gpio_probe()
856 if (IS_ERR(gpio->base)) in tegra186_gpio_probe()
857 return PTR_ERR(gpio->base); in tegra186_gpio_probe()
863 gpio->num_irq = err; in tegra186_gpio_probe()
865 err = tegra186_gpio_irqs_per_bank(gpio); in tegra186_gpio_probe()
869 gpio->irq = devm_kcalloc(&pdev->dev, gpio->num_irq, sizeof(*gpio->irq), in tegra186_gpio_probe()
871 if (!gpio->irq) in tegra186_gpio_probe()
872 return -ENOMEM; in tegra186_gpio_probe()
874 for (i = 0; i < gpio->num_irq; i++) { in tegra186_gpio_probe()
879 gpio->irq[i] = err; in tegra186_gpio_probe()
882 gpio->gpio.request = gpiochip_generic_request; in tegra186_gpio_probe()
883 gpio->gpio.free = gpiochip_generic_free; in tegra186_gpio_probe()
884 gpio->gpio.get_direction = tegra186_gpio_get_direction; in tegra186_gpio_probe()
885 gpio->gpio.direction_input = tegra186_gpio_direction_input; in tegra186_gpio_probe()
886 gpio->gpio.direction_output = tegra186_gpio_direction_output; in tegra186_gpio_probe()
887 gpio->gpio.get = tegra186_gpio_get; in tegra186_gpio_probe()
888 gpio->gpio.set = tegra186_gpio_set; in tegra186_gpio_probe()
889 gpio->gpio.set_config = tegra186_gpio_set_config; in tegra186_gpio_probe()
890 gpio->gpio.add_pin_ranges = tegra186_gpio_add_pin_ranges; in tegra186_gpio_probe()
891 gpio->gpio.init_valid_mask = tegra186_init_valid_mask; in tegra186_gpio_probe()
892 if (gpio->soc->has_gte) { in tegra186_gpio_probe()
893 gpio->gpio.en_hw_timestamp = tegra186_gpio_en_hw_ts; in tegra186_gpio_probe()
894 gpio->gpio.dis_hw_timestamp = tegra186_gpio_dis_hw_ts; in tegra186_gpio_probe()
897 gpio->gpio.base = -1; in tegra186_gpio_probe()
899 for (i = 0; i < gpio->soc->num_ports; i++) in tegra186_gpio_probe()
900 gpio->gpio.ngpio += gpio->soc->ports[i].pins; in tegra186_gpio_probe()
902 names = devm_kcalloc(gpio->gpio.parent, gpio->gpio.ngpio, in tegra186_gpio_probe()
905 return -ENOMEM; in tegra186_gpio_probe()
907 for (i = 0, offset = 0; i < gpio->soc->num_ports; i++) { in tegra186_gpio_probe()
908 const struct tegra_gpio_port *port = &gpio->soc->ports[i]; in tegra186_gpio_probe()
911 for (j = 0; j < port->pins; j++) { in tegra186_gpio_probe()
912 name = devm_kasprintf(gpio->gpio.parent, GFP_KERNEL, in tegra186_gpio_probe()
913 "P%s.%02x", port->name, j); in tegra186_gpio_probe()
915 return -ENOMEM; in tegra186_gpio_probe()
920 offset += port->pins; in tegra186_gpio_probe()
923 gpio->gpio.names = (const char * const *)names; in tegra186_gpio_probe()
926 gpio->gpio.of_gpio_n_cells = 2; in tegra186_gpio_probe()
927 gpio->gpio.of_xlate = tegra186_gpio_of_xlate; in tegra186_gpio_probe()
930 irq = &gpio->gpio.irq; in tegra186_gpio_probe()
932 irq->fwnode = of_node_to_fwnode(pdev->dev.of_node); in tegra186_gpio_probe()
933 irq->child_to_parent_hwirq = tegra186_gpio_child_to_parent_hwirq; in tegra186_gpio_probe()
934 irq->populate_parent_alloc_arg = tegra186_gpio_populate_parent_fwspec; in tegra186_gpio_probe()
935 irq->child_offset_to_irq = tegra186_gpio_child_offset_to_irq; in tegra186_gpio_probe()
936 irq->child_irq_domain_ops.translate = tegra186_gpio_irq_domain_translate; in tegra186_gpio_probe()
937 irq->handler = handle_simple_irq; in tegra186_gpio_probe()
938 irq->default_type = IRQ_TYPE_NONE; in tegra186_gpio_probe()
939 irq->parent_handler = tegra186_gpio_irq; in tegra186_gpio_probe()
940 irq->parent_handler_data = gpio; in tegra186_gpio_probe()
941 irq->num_parents = gpio->num_irq; in tegra186_gpio_probe()
950 if (gpio->num_irqs_per_bank > 1) { in tegra186_gpio_probe()
951 irq->parents = devm_kcalloc(&pdev->dev, gpio->num_banks, in tegra186_gpio_probe()
952 sizeof(*irq->parents), GFP_KERNEL); in tegra186_gpio_probe()
953 if (!irq->parents) in tegra186_gpio_probe()
954 return -ENOMEM; in tegra186_gpio_probe()
956 for (i = 0; i < gpio->num_banks; i++) in tegra186_gpio_probe()
957 irq->parents[i] = gpio->irq[i * gpio->num_irqs_per_bank]; in tegra186_gpio_probe()
959 irq->num_parents = gpio->num_banks; in tegra186_gpio_probe()
961 irq->num_parents = gpio->num_irq; in tegra186_gpio_probe()
962 irq->parents = gpio->irq; in tegra186_gpio_probe()
965 if (gpio->soc->num_irqs_per_bank > 1) in tegra186_gpio_probe()
966 tegra186_gpio_init_route_mapping(gpio); in tegra186_gpio_probe()
971 irq->parent_domain = irq_find_host(np); in tegra186_gpio_probe()
974 if (!irq->parent_domain) in tegra186_gpio_probe()
975 return -EPROBE_DEFER; in tegra186_gpio_probe()
981 irq->map = devm_kcalloc(&pdev->dev, gpio->gpio.ngpio, in tegra186_gpio_probe()
982 sizeof(*irq->map), GFP_KERNEL); in tegra186_gpio_probe()
983 if (!irq->map) in tegra186_gpio_probe()
984 return -ENOMEM; in tegra186_gpio_probe()
986 for (i = 0, offset = 0; i < gpio->soc->num_ports; i++) { in tegra186_gpio_probe()
987 const struct tegra_gpio_port *port = &gpio->soc->ports[i]; in tegra186_gpio_probe()
989 for (j = 0; j < port->pins; j++) in tegra186_gpio_probe()
990 irq->map[offset + j] = irq->parents[port->bank]; in tegra186_gpio_probe()
992 offset += port->pins; in tegra186_gpio_probe()
995 return devm_gpiochip_add_data(&pdev->dev, &gpio->gpio, gpio); in tegra186_gpio_probe()
1035 .name = "tegra186-gpio",
1063 .name = "tegra186-gpio-aon",
1116 .name = "tegra194-gpio",
1121 .pinmux = "nvidia,tegra194-pinmux",
1144 .name = "tegra194-gpio-aon",
1190 .name = "tegra234-gpio",
1216 .name = "tegra234-gpio-aon",
1248 .name = "tegra241-gpio",
1270 .name = "tegra241-gpio-aon",
1278 .compatible = "nvidia,tegra186-gpio",
1281 .compatible = "nvidia,tegra186-gpio-aon",
1284 .compatible = "nvidia,tegra194-gpio",
1287 .compatible = "nvidia,tegra194-gpio-aon",
1290 .compatible = "nvidia,tegra234-gpio",
1293 .compatible = "nvidia,tegra234-gpio-aon",
1314 .name = "tegra186-gpio",
1322 MODULE_DESCRIPTION("NVIDIA Tegra186 GPIO controller driver");