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Subject[tip: irq/core] irqchip: ingenic: Get virq number from IRQ domain
The following commit has been merged into the irq/core branch of tip:

Commit-ID: 208caadce5d4d38f48af965206bbd4473d265080
Gitweb: https://git.kernel.org/tip/208caadce5d4d38f48af965206bbd4473d265080
Author: Paul Cercueil <paul@crapouillou.net>
AuthorDate: Wed, 02 Oct 2019 19:25:23 +08:00
Committer: Marc Zyngier <maz@kernel.org>
CommitterDate: Sun, 10 Nov 2019 18:55:30

irqchip: ingenic: Get virq number from IRQ domain

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
---
drivers/irqchip/irq-ingenic.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-ingenic.c b/drivers/irqchip/irq-ingenic.c
index d97a3a5..82a079f 100644
--- a/drivers/irqchip/irq-ingenic.c
+++ b/drivers/irqchip/irq-ingenic.c
@@ -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) +
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