static int pmc_irq_map(struct irq_domain *h, unsigned int virq,
irq_hw_number_t hw)
{
struct at91_pmc *pmc = h->host_data;
irq_set_lockdep_class(virq, &pmc_lock_class);
irq_set_chip_and_handler(virq, &pmc_irq,
handle_level_irq);
irq_set_chip_data(virq, pmc);
return 0;
}
/*
* Called from the processor-specific init to enable GPIO interrupt support.
*/
void __init at91_gpio_irq_setup(void)
{
unsigned pioc;
int gpio_irqnbr = 0;
struct at91_gpio_chip *this, *prev;
/* Setup proper .irq_set_type function */
if (has_pio3())
gpio_irqchip.irq_set_type = alt_gpio_irq_type;
else
gpio_irqchip.irq_set_type = gpio_irq_type;
for (pioc = 0, this = gpio_chip, prev = NULL;
pioc++ < gpio_banks;
prev = this, this++) {
int offset;
__raw_writel(~0, this->regbase + PIO_IDR);
/* setup irq domain for this GPIO controller */
at91_gpio_irqdomain(this);
for (offset = 0; offset < this->chip.ngpio; offset++) {
unsigned int virq = irq_find_mapping(this->domain, offset);
irq_set_lockdep_class(virq, &gpio_lock_class);
/*
* Can use the "simple" and not "edge" handler since it's
* shorter, and the AIC handles interrupts sanely.
*/
irq_set_chip_and_handler(virq, &gpio_irqchip,
handle_simple_irq);
set_irq_flags(virq, IRQF_VALID);
irq_set_chip_data(virq, this);
gpio_irqnbr++;
}
/* The toplevel handler handles one bank of GPIOs, except
* on some SoC it can handles up to three...
* We only set up the handler for the first of the list.
*/
if (prev && prev->next == this)
continue;
this->pioc_virq = irq_create_mapping(NULL, this->pioc_hwirq);
irq_set_chip_data(this->pioc_virq, this);
irq_set_chained_handler(this->pioc_virq, gpio_irq_handler);
}
pr_info("AT91: %d gpio irqs in %d banks\n", gpio_irqnbr, gpio_banks);
}
static int intc_irqpin_irq_domain_map(struct irq_domain *h, unsigned int virq,
irq_hw_number_t hw)
{
struct intc_irqpin_priv *p = h->host_data;
p->irq[hw].domain_irq = virq;
p->irq[hw].hw_irq = hw;
intc_irqpin_dbg(&p->irq[hw], "map");
irq_set_chip_data(virq, h->host_data);
irq_set_lockdep_class(virq, &intc_irqpin_irq_lock_class);
irq_set_chip_and_handler(virq, &p->irq_chip, handle_level_irq);
return 0;
}
/*
* Called from the processor-specific init to enable GPIO interrupt support.
*/
void __init at91_gpio_irq_setup(void)
{
unsigned pioc, pin;
struct at91_gpio_chip *this, *prev;
for (pioc = 0, pin = PIN_BASE, this = gpio_chip, prev = NULL;
pioc++ < gpio_banks;
prev = this, this++) {
unsigned id = this->bank->id;
unsigned i;
__raw_writel(~0, this->regbase + PIO_IDR);
for (i = 0, pin = this->chip.base; i < 32; i++, pin++) {
irq_set_lockdep_class(pin, &gpio_lock_class);
/*
* Can use the "simple" and not "edge" handler since it's
* shorter, and the AIC handles interrupts sanely.
*/
irq_set_chip_and_handler(pin, &gpio_irqchip,
handle_simple_irq);
set_irq_flags(pin, IRQF_VALID);
}
/* The toplevel handler handles one bank of GPIOs, except
* AT91SAM9263_ID_PIOCDE handles three... PIOC is first in
* the list, so we only set up that handler.
*/
if (prev && prev->next == this)
continue;
irq_set_chip_data(id, this);
irq_set_chained_handler(id, gpio_irq_handler);
}
pr_info("AT91: %d gpio irqs in %d banks\n", pin - PIN_BASE, gpio_banks);
}
void __init rk30_gpio_init(void)
{
unsigned int i, j, pin, irqs = 0;
struct rk30_gpio_bank *bank;
struct seq_file s;
struct gpio_chip chip;
bank = rk30_gpio_banks;
for (i = 0; i < ARRAY_SIZE(rk30_gpio_banks); i++, bank++) {
spin_lock_init(&bank->lock);
bank->clk = clk_get(NULL, bank->chip.label);
clk_enable(bank->clk);
gpiochip_add(&bank->chip);
__raw_writel(0, bank->regbase + GPIO_INTEN);
pin = bank->chip.base;
for (j = 0; j < 32; j++) {
unsigned int irq = gpio_to_irq(pin);
if (pin > MAX_PIN)
break;
irq_set_lockdep_class(irq, &gpio_lock_class);
irq_set_chip_data(irq, bank);
irq_set_chip_and_handler(irq, &rk30_gpio_irq_chip, handle_level_irq);
set_irq_flags(irq, IRQF_VALID);
pin++;
irqs++;
}
irq_set_handler_data(bank->irq, bank);
irq_set_chained_handler(bank->irq, rk30_gpio_irq_handler);
}
printk("%s: %d gpio irqs in %d banks\n", __func__, irqs, ARRAY_SIZE(rk30_gpio_banks));
// Dump the GPIO registers
rk30_gpiolib_dbg_show(&s, &chip);
}