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irqchip: ingenic: Get virq number from IRQ domain

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Get the virq number from the IRQ domain instead of calculating it from
the hardcoded irq base.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1570015525-27018-4-git-send-email-zhouyanjie@zoho.com
This commit is contained in:
Paul Cercueil 2019-10-02 19:25:23 +08:00 committed by Marc Zyngier
parent 52ecc87642
commit 208caadce5
1 changed files with 6 additions and 1 deletions
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7
drivers/irqchip/irq-ingenic.c
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@ -21,6 +21,7 @@
struct ingenic_intc_data {
void __iomem *base;
struct irq_domain *domain;
unsigned num_chips;
};
@ -34,6 +35,7 @@ struct ingenic_intc_data {
static irqreturn_t intc_cascade(int irq, void *data)
{
struct ingenic_intc_data *intc = irq_get_handler_data(irq);
struct irq_domain *domain = intc->domain;
uint32_t irq_reg;
unsigned i;
@ -43,7 +45,8 @@ static irqreturn_t intc_cascade(int irq, void *data)
if (!irq_reg)
continue;
generic_handle_irq(__fls(irq_reg) + (i * 32) + JZ4740_IRQ_BASE);
irq = irq_find_mapping(domain, __fls(irq_reg) + (i * 32));
generic_handle_irq(irq);
}
return IRQ_HANDLED;
@ -95,6 +98,8 @@ static int __init ingenic_intc_of_init(struct device_node *node,
goto out_unmap_base;
}
intc->domain = domain;
for (i = 0; i < num_chips; i++) {
/* Mask all irqs */
writel(0xffffffff, intc->base + (i * CHIP_SIZE) +