Lines Matching refs:gpio
71 struct dwapb_gpio *gpio; member
92 static inline u32 dwapb_read(struct dwapb_gpio *gpio, unsigned int offset) in dwapb_read() argument
94 struct bgpio_chip *bgc = &gpio->ports[0].bgc; in dwapb_read()
95 void __iomem *reg_base = gpio->regs; in dwapb_read()
100 static inline void dwapb_write(struct dwapb_gpio *gpio, unsigned int offset, in dwapb_write() argument
103 struct bgpio_chip *bgc = &gpio->ports[0].bgc; in dwapb_write()
104 void __iomem *reg_base = gpio->regs; in dwapb_write()
113 struct dwapb_gpio *gpio = port->gpio; in dwapb_gpio_to_irq() local
115 return irq_find_mapping(gpio->domain, offset); in dwapb_gpio_to_irq()
118 static void dwapb_toggle_trigger(struct dwapb_gpio *gpio, unsigned int offs) in dwapb_toggle_trigger() argument
120 u32 v = dwapb_read(gpio, GPIO_INT_POLARITY); in dwapb_toggle_trigger()
122 if (gpio_get_value(gpio->ports[0].bgc.gc.base + offs)) in dwapb_toggle_trigger()
127 dwapb_write(gpio, GPIO_INT_POLARITY, v); in dwapb_toggle_trigger()
130 static u32 dwapb_do_irq(struct dwapb_gpio *gpio) in dwapb_do_irq() argument
132 u32 irq_status = readl_relaxed(gpio->regs + GPIO_INTSTATUS); in dwapb_do_irq()
137 int gpio_irq = irq_find_mapping(gpio->domain, hwirq); in dwapb_do_irq()
144 dwapb_toggle_trigger(gpio, hwirq); in dwapb_do_irq()
152 struct dwapb_gpio *gpio = irq_get_handler_data(irq); in dwapb_irq_handler() local
155 dwapb_do_irq(gpio); in dwapb_irq_handler()
164 struct dwapb_gpio *gpio = igc->private; in dwapb_irq_enable() local
165 struct bgpio_chip *bgc = &gpio->ports[0].bgc; in dwapb_irq_enable()
170 val = dwapb_read(gpio, GPIO_INTEN); in dwapb_irq_enable()
172 dwapb_write(gpio, GPIO_INTEN, val); in dwapb_irq_enable()
179 struct dwapb_gpio *gpio = igc->private; in dwapb_irq_disable() local
180 struct bgpio_chip *bgc = &gpio->ports[0].bgc; in dwapb_irq_disable()
185 val = dwapb_read(gpio, GPIO_INTEN); in dwapb_irq_disable()
187 dwapb_write(gpio, GPIO_INTEN, val); in dwapb_irq_disable()
194 struct dwapb_gpio *gpio = igc->private; in dwapb_irq_reqres() local
195 struct bgpio_chip *bgc = &gpio->ports[0].bgc; in dwapb_irq_reqres()
198 dev_err(gpio->dev, "unable to lock HW IRQ %lu for IRQ\n", in dwapb_irq_reqres()
208 struct dwapb_gpio *gpio = igc->private; in dwapb_irq_relres() local
209 struct bgpio_chip *bgc = &gpio->ports[0].bgc; in dwapb_irq_relres()
217 struct dwapb_gpio *gpio = igc->private; in dwapb_irq_set_type() local
218 struct bgpio_chip *bgc = &gpio->ports[0].bgc; in dwapb_irq_set_type()
227 level = dwapb_read(gpio, GPIO_INTTYPE_LEVEL); in dwapb_irq_set_type()
228 polarity = dwapb_read(gpio, GPIO_INT_POLARITY); in dwapb_irq_set_type()
233 dwapb_toggle_trigger(gpio, bit); in dwapb_irq_set_type()
255 dwapb_write(gpio, GPIO_INTTYPE_LEVEL, level); in dwapb_irq_set_type()
256 dwapb_write(gpio, GPIO_INT_POLARITY, polarity); in dwapb_irq_set_type()
267 struct dwapb_gpio *gpio = port->gpio; in dwapb_gpio_set_debounce() local
273 val_deb = dwapb_read(gpio, GPIO_PORTA_DEBOUNCE); in dwapb_gpio_set_debounce()
275 dwapb_write(gpio, GPIO_PORTA_DEBOUNCE, val_deb | mask); in dwapb_gpio_set_debounce()
277 dwapb_write(gpio, GPIO_PORTA_DEBOUNCE, val_deb & ~mask); in dwapb_gpio_set_debounce()
287 struct dwapb_gpio *gpio = dev_id; in dwapb_irq_handler_mfd() local
289 worked = dwapb_do_irq(gpio); in dwapb_irq_handler_mfd()
294 static void dwapb_configure_irqs(struct dwapb_gpio *gpio, in dwapb_configure_irqs() argument
305 gpio->domain = irq_domain_add_linear(node, ngpio, in dwapb_configure_irqs()
306 &irq_generic_chip_ops, gpio); in dwapb_configure_irqs()
307 if (!gpio->domain) in dwapb_configure_irqs()
310 err = irq_alloc_domain_generic_chips(gpio->domain, ngpio, 2, in dwapb_configure_irqs()
315 dev_info(gpio->dev, "irq_alloc_domain_generic_chips failed\n"); in dwapb_configure_irqs()
316 irq_domain_remove(gpio->domain); in dwapb_configure_irqs()
317 gpio->domain = NULL; in dwapb_configure_irqs()
321 irq_gc = irq_get_domain_generic_chip(gpio->domain, 0); in dwapb_configure_irqs()
323 irq_domain_remove(gpio->domain); in dwapb_configure_irqs()
324 gpio->domain = NULL; in dwapb_configure_irqs()
328 irq_gc->reg_base = gpio->regs; in dwapb_configure_irqs()
329 irq_gc->private = gpio; in dwapb_configure_irqs()
352 irq_set_handler_data(pp->irq, gpio); in dwapb_configure_irqs()
358 err = devm_request_irq(gpio->dev, pp->irq, in dwapb_configure_irqs()
360 IRQF_SHARED, "gpio-dwapb-mfd", gpio); in dwapb_configure_irqs()
362 dev_err(gpio->dev, "error requesting IRQ\n"); in dwapb_configure_irqs()
363 irq_domain_remove(gpio->domain); in dwapb_configure_irqs()
364 gpio->domain = NULL; in dwapb_configure_irqs()
370 irq_create_mapping(gpio->domain, hwirq); in dwapb_configure_irqs()
375 static void dwapb_irq_teardown(struct dwapb_gpio *gpio) in dwapb_irq_teardown() argument
377 struct dwapb_gpio_port *port = &gpio->ports[0]; in dwapb_irq_teardown()
382 if (!gpio->domain) in dwapb_irq_teardown()
386 irq_dispose_mapping(irq_find_mapping(gpio->domain, hwirq)); in dwapb_irq_teardown()
388 irq_domain_remove(gpio->domain); in dwapb_irq_teardown()
389 gpio->domain = NULL; in dwapb_irq_teardown()
392 static int dwapb_gpio_add_port(struct dwapb_gpio *gpio, in dwapb_gpio_add_port() argument
400 port = &gpio->ports[offs]; in dwapb_gpio_add_port()
401 port->gpio = gpio; in dwapb_gpio_add_port()
405 port->ctx = devm_kzalloc(gpio->dev, sizeof(*port->ctx), GFP_KERNEL); in dwapb_gpio_add_port()
410 dat = gpio->regs + GPIO_EXT_PORTA + (pp->idx * GPIO_EXT_PORT_SIZE); in dwapb_gpio_add_port()
411 set = gpio->regs + GPIO_SWPORTA_DR + (pp->idx * GPIO_SWPORT_DR_SIZE); in dwapb_gpio_add_port()
412 dirout = gpio->regs + GPIO_SWPORTA_DDR + in dwapb_gpio_add_port()
415 err = bgpio_init(&port->bgc, gpio->dev, 4, dat, set, NULL, dirout, in dwapb_gpio_add_port()
418 dev_err(gpio->dev, "failed to init gpio chip for %s\n", in dwapb_gpio_add_port()
434 dwapb_configure_irqs(gpio, port, pp); in dwapb_gpio_add_port()
438 dev_err(gpio->dev, "failed to register gpiochip for %s\n", in dwapb_gpio_add_port()
446 static void dwapb_gpio_unregister(struct dwapb_gpio *gpio) in dwapb_gpio_unregister() argument
450 for (m = 0; m < gpio->nr_ports; ++m) in dwapb_gpio_unregister()
451 if (gpio->ports[m].is_registered) in dwapb_gpio_unregister()
452 gpiochip_remove(&gpio->ports[m].bgc.gc); in dwapb_gpio_unregister()
526 struct dwapb_gpio *gpio; in dwapb_gpio_probe() local
540 gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL); in dwapb_gpio_probe()
541 if (!gpio) in dwapb_gpio_probe()
544 gpio->dev = &pdev->dev; in dwapb_gpio_probe()
545 gpio->nr_ports = pdata->nports; in dwapb_gpio_probe()
547 gpio->ports = devm_kcalloc(&pdev->dev, gpio->nr_ports, in dwapb_gpio_probe()
548 sizeof(*gpio->ports), GFP_KERNEL); in dwapb_gpio_probe()
549 if (!gpio->ports) in dwapb_gpio_probe()
553 gpio->regs = devm_ioremap_resource(&pdev->dev, res); in dwapb_gpio_probe()
554 if (IS_ERR(gpio->regs)) in dwapb_gpio_probe()
555 return PTR_ERR(gpio->regs); in dwapb_gpio_probe()
557 for (i = 0; i < gpio->nr_ports; i++) { in dwapb_gpio_probe()
558 err = dwapb_gpio_add_port(gpio, &pdata->properties[i], i); in dwapb_gpio_probe()
562 platform_set_drvdata(pdev, gpio); in dwapb_gpio_probe()
567 dwapb_gpio_unregister(gpio); in dwapb_gpio_probe()
568 dwapb_irq_teardown(gpio); in dwapb_gpio_probe()
575 struct dwapb_gpio *gpio = platform_get_drvdata(pdev); in dwapb_gpio_remove() local
577 dwapb_gpio_unregister(gpio); in dwapb_gpio_remove()
578 dwapb_irq_teardown(gpio); in dwapb_gpio_remove()
593 struct dwapb_gpio *gpio = platform_get_drvdata(pdev); in dwapb_gpio_suspend() local
594 struct bgpio_chip *bgc = &gpio->ports[0].bgc; in dwapb_gpio_suspend()
599 for (i = 0; i < gpio->nr_ports; i++) { in dwapb_gpio_suspend()
601 unsigned int idx = gpio->ports[i].idx; in dwapb_gpio_suspend()
602 struct dwapb_context *ctx = gpio->ports[i].ctx; in dwapb_gpio_suspend()
607 ctx->dir = dwapb_read(gpio, offset); in dwapb_gpio_suspend()
610 ctx->data = dwapb_read(gpio, offset); in dwapb_gpio_suspend()
613 ctx->ext = dwapb_read(gpio, offset); in dwapb_gpio_suspend()
617 ctx->int_mask = dwapb_read(gpio, GPIO_INTMASK); in dwapb_gpio_suspend()
618 ctx->int_en = dwapb_read(gpio, GPIO_INTEN); in dwapb_gpio_suspend()
619 ctx->int_pol = dwapb_read(gpio, GPIO_INT_POLARITY); in dwapb_gpio_suspend()
620 ctx->int_type = dwapb_read(gpio, GPIO_INTTYPE_LEVEL); in dwapb_gpio_suspend()
621 ctx->int_deb = dwapb_read(gpio, GPIO_PORTA_DEBOUNCE); in dwapb_gpio_suspend()
624 dwapb_write(gpio, GPIO_INTMASK, 0xffffffff); in dwapb_gpio_suspend()
635 struct dwapb_gpio *gpio = platform_get_drvdata(pdev); in dwapb_gpio_resume() local
636 struct bgpio_chip *bgc = &gpio->ports[0].bgc; in dwapb_gpio_resume()
641 for (i = 0; i < gpio->nr_ports; i++) { in dwapb_gpio_resume()
643 unsigned int idx = gpio->ports[i].idx; in dwapb_gpio_resume()
644 struct dwapb_context *ctx = gpio->ports[i].ctx; in dwapb_gpio_resume()
649 dwapb_write(gpio, offset, ctx->data); in dwapb_gpio_resume()
652 dwapb_write(gpio, offset, ctx->dir); in dwapb_gpio_resume()
655 dwapb_write(gpio, offset, ctx->ext); in dwapb_gpio_resume()
659 dwapb_write(gpio, GPIO_INTTYPE_LEVEL, ctx->int_type); in dwapb_gpio_resume()
660 dwapb_write(gpio, GPIO_INT_POLARITY, ctx->int_pol); in dwapb_gpio_resume()
661 dwapb_write(gpio, GPIO_PORTA_DEBOUNCE, ctx->int_deb); in dwapb_gpio_resume()
662 dwapb_write(gpio, GPIO_INTEN, ctx->int_en); in dwapb_gpio_resume()
663 dwapb_write(gpio, GPIO_INTMASK, ctx->int_mask); in dwapb_gpio_resume()
666 dwapb_write(gpio, GPIO_PORTA_EOI, 0xffffffff); in dwapb_gpio_resume()