Lines Matching +full:rcar +full:- +full:gen2 +full:- +full:gpio
2 * Renesas R-Car GPIO Support
18 #include <linux/gpio/driver.h>
72 return ioread32(p->base + offs); in gpio_rcar_read()
78 iowrite32(value, p->base + offs); in gpio_rcar_write()
118 /* follow steps in the GPIO documentation for in gpio_rcar_config_interrupt_input_mode()
119 * "Setting Edge-Sensitive Interrupt Input Mode" and in gpio_rcar_config_interrupt_input_mode()
120 * "Setting Level-Sensitive Interrupt Input Mode" in gpio_rcar_config_interrupt_input_mode()
123 spin_lock_irqsave(&p->lock, flags); in gpio_rcar_config_interrupt_input_mode()
132 if (p->has_both_edge_trigger) in gpio_rcar_config_interrupt_input_mode()
142 spin_unlock_irqrestore(&p->lock, flags); in gpio_rcar_config_interrupt_input_mode()
151 dev_dbg(&p->pdev->dev, "sense irq = %d, type = %d\n", hwirq, type); in gpio_rcar_irq_set_type()
171 if (!p->has_both_edge_trigger) in gpio_rcar_irq_set_type()
172 return -EINVAL; in gpio_rcar_irq_set_type()
177 return -EINVAL; in gpio_rcar_irq_set_type()
188 if (p->irq_parent) { in gpio_rcar_irq_set_wake()
189 error = irq_set_irq_wake(p->irq_parent, on); in gpio_rcar_irq_set_wake()
191 dev_dbg(&p->pdev->dev, in gpio_rcar_irq_set_wake()
193 p->irq_parent); in gpio_rcar_irq_set_wake()
194 p->irq_parent = 0; in gpio_rcar_irq_set_wake()
199 atomic_inc(&p->wakeup_path); in gpio_rcar_irq_set_wake()
201 atomic_dec(&p->wakeup_path); in gpio_rcar_irq_set_wake()
216 generic_handle_irq(irq_find_mapping(p->gpio_chip.irq.domain, in gpio_rcar_irq_handler()
225 unsigned int gpio, in gpio_rcar_config_general_input_output_mode() argument
231 /* follow steps in the GPIO documentation for in gpio_rcar_config_general_input_output_mode()
236 spin_lock_irqsave(&p->lock, flags); in gpio_rcar_config_general_input_output_mode()
239 gpio_rcar_modify_bit(p, POSNEG, gpio, false); in gpio_rcar_config_general_input_output_mode()
242 gpio_rcar_modify_bit(p, IOINTSEL, gpio, false); in gpio_rcar_config_general_input_output_mode()
245 gpio_rcar_modify_bit(p, INOUTSEL, gpio, output); in gpio_rcar_config_general_input_output_mode()
247 spin_unlock_irqrestore(&p->lock, flags); in gpio_rcar_config_general_input_output_mode()
255 error = pm_runtime_get_sync(&p->pdev->dev); in gpio_rcar_request()
259 error = pinctrl_gpio_request(chip->base + offset); in gpio_rcar_request()
261 pm_runtime_put(&p->pdev->dev); in gpio_rcar_request()
270 pinctrl_gpio_free(chip->base + offset); in gpio_rcar_free()
273 * Set the GPIO as an input to ensure that the next GPIO request won't in gpio_rcar_free()
274 * drive the GPIO pin as an output. in gpio_rcar_free()
278 pm_runtime_put(&p->pdev->dev); in gpio_rcar_free()
311 spin_lock_irqsave(&p->lock, flags); in gpio_rcar_set()
313 spin_unlock_irqrestore(&p->lock, flags); in gpio_rcar_set()
323 bankmask = mask[0] & GENMASK(chip->ngpio - 1, 0); in gpio_rcar_set_multiple()
327 spin_lock_irqsave(&p->lock, flags); in gpio_rcar_set_multiple()
332 spin_unlock_irqrestore(&p->lock, flags); in gpio_rcar_set_multiple()
338 /* write GPIO value to output before selecting output mode of pin */ in gpio_rcar_direction_output()
358 .compatible = "renesas,gpio-r8a7743",
359 /* RZ/G1 GPIO is identical to R-Car Gen2. */
362 .compatible = "renesas,gpio-r8a7790",
365 .compatible = "renesas,gpio-r8a7791",
368 .compatible = "renesas,gpio-r8a7792",
371 .compatible = "renesas,gpio-r8a7793",
374 .compatible = "renesas,gpio-r8a7794",
377 .compatible = "renesas,gpio-r8a7795",
378 /* Gen3 GPIO is identical to Gen2. */
381 .compatible = "renesas,gpio-r8a7796",
382 /* Gen3 GPIO is identical to Gen2. */
385 .compatible = "renesas,rcar-gen1-gpio",
388 .compatible = "renesas,rcar-gen2-gpio",
391 .compatible = "renesas,rcar-gen3-gpio",
392 /* Gen3 GPIO is identical to Gen2. */
395 .compatible = "renesas,gpio-rcar",
406 struct device_node *np = p->pdev->dev.of_node; in gpio_rcar_parse_dt()
411 info = of_device_get_match_data(&p->pdev->dev); in gpio_rcar_parse_dt()
413 ret = of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, 0, &args); in gpio_rcar_parse_dt()
415 p->has_both_edge_trigger = info->has_both_edge_trigger; in gpio_rcar_parse_dt()
418 dev_warn(&p->pdev->dev, in gpio_rcar_parse_dt()
419 "Invalid number of gpio lines %u, using %u\n", *npins, in gpio_rcar_parse_dt()
433 struct device *dev = &pdev->dev; in gpio_rcar_probe()
440 return -ENOMEM; in gpio_rcar_probe()
442 p->pdev = pdev; in gpio_rcar_probe()
443 spin_lock_init(&p->lock); in gpio_rcar_probe()
457 ret = -EINVAL; in gpio_rcar_probe()
462 p->base = devm_ioremap_resource(dev, io); in gpio_rcar_probe()
463 if (IS_ERR(p->base)) { in gpio_rcar_probe()
464 ret = PTR_ERR(p->base); in gpio_rcar_probe()
468 gpio_chip = &p->gpio_chip; in gpio_rcar_probe()
469 gpio_chip->request = gpio_rcar_request; in gpio_rcar_probe()
470 gpio_chip->free = gpio_rcar_free; in gpio_rcar_probe()
471 gpio_chip->get_direction = gpio_rcar_get_direction; in gpio_rcar_probe()
472 gpio_chip->direction_input = gpio_rcar_direction_input; in gpio_rcar_probe()
473 gpio_chip->get = gpio_rcar_get; in gpio_rcar_probe()
474 gpio_chip->direction_output = gpio_rcar_direction_output; in gpio_rcar_probe()
475 gpio_chip->set = gpio_rcar_set; in gpio_rcar_probe()
476 gpio_chip->set_multiple = gpio_rcar_set_multiple; in gpio_rcar_probe()
477 gpio_chip->label = name; in gpio_rcar_probe()
478 gpio_chip->parent = dev; in gpio_rcar_probe()
479 gpio_chip->owner = THIS_MODULE; in gpio_rcar_probe()
480 gpio_chip->base = -1; in gpio_rcar_probe()
481 gpio_chip->ngpio = npins; in gpio_rcar_probe()
483 irq_chip = &p->irq_chip; in gpio_rcar_probe()
484 irq_chip->name = name; in gpio_rcar_probe()
485 irq_chip->parent_device = dev; in gpio_rcar_probe()
486 irq_chip->irq_mask = gpio_rcar_irq_disable; in gpio_rcar_probe()
487 irq_chip->irq_unmask = gpio_rcar_irq_enable; in gpio_rcar_probe()
488 irq_chip->irq_set_type = gpio_rcar_irq_set_type; in gpio_rcar_probe()
489 irq_chip->irq_set_wake = gpio_rcar_irq_set_wake; in gpio_rcar_probe()
490 irq_chip->flags = IRQCHIP_SET_TYPE_MASKED | IRQCHIP_MASK_ON_SUSPEND; in gpio_rcar_probe()
494 dev_err(dev, "failed to add GPIO controller\n"); in gpio_rcar_probe()
505 p->irq_parent = irq->start; in gpio_rcar_probe()
506 if (devm_request_irq(dev, irq->start, gpio_rcar_irq_handler, in gpio_rcar_probe()
509 ret = -ENOENT; in gpio_rcar_probe()
528 gpiochip_remove(&p->gpio_chip); in gpio_rcar_remove()
530 pm_runtime_disable(&pdev->dev); in gpio_rcar_remove()
539 p->bank_info.iointsel = gpio_rcar_read(p, IOINTSEL); in gpio_rcar_suspend()
540 p->bank_info.inoutsel = gpio_rcar_read(p, INOUTSEL); in gpio_rcar_suspend()
541 p->bank_info.outdt = gpio_rcar_read(p, OUTDT); in gpio_rcar_suspend()
542 p->bank_info.intmsk = gpio_rcar_read(p, INTMSK); in gpio_rcar_suspend()
543 p->bank_info.posneg = gpio_rcar_read(p, POSNEG); in gpio_rcar_suspend()
544 p->bank_info.edglevel = gpio_rcar_read(p, EDGLEVEL); in gpio_rcar_suspend()
545 if (p->has_both_edge_trigger) in gpio_rcar_suspend()
546 p->bank_info.bothedge = gpio_rcar_read(p, BOTHEDGE); in gpio_rcar_suspend()
548 if (atomic_read(&p->wakeup_path)) in gpio_rcar_suspend()
560 for (offset = 0; offset < p->gpio_chip.ngpio; offset++) { in gpio_rcar_resume()
563 if (!(p->bank_info.iointsel & mask)) { in gpio_rcar_resume()
564 if (p->bank_info.inoutsel & mask) in gpio_rcar_resume()
566 &p->gpio_chip, offset, in gpio_rcar_resume()
567 !!(p->bank_info.outdt & mask)); in gpio_rcar_resume()
569 gpio_rcar_direction_input(&p->gpio_chip, in gpio_rcar_resume()
576 !(p->bank_info.posneg & mask), in gpio_rcar_resume()
577 !(p->bank_info.edglevel & mask), in gpio_rcar_resume()
578 !!(p->bank_info.bothedge & mask)); in gpio_rcar_resume()
580 if (p->bank_info.intmsk & mask) in gpio_rcar_resume()
604 MODULE_DESCRIPTION("Renesas R-Car GPIO Driver");