diff options
Diffstat (limited to 'drivers/irqchip/irq-ingenic.c')
| -rw-r--r-- | drivers/irqchip/irq-ingenic.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/irqchip/irq-ingenic.c b/drivers/irqchip/irq-ingenic.c index 06ab3ad22ad2..01d18b39069e 100644 --- a/drivers/irqchip/irq-ingenic.c +++ b/drivers/irqchip/irq-ingenic.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de> - * JZ4740 platform IRQ support + * Ingenic XBurst platform IRQ support */ #include <linux/errno.h> @@ -37,18 +37,23 @@ 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; struct irq_chip_generic *gc; - uint32_t irq_reg; + uint32_t pending; unsigned i; for (i = 0; i < intc->num_chips; i++) { gc = irq_get_domain_generic_chip(domain, i * 32); - irq_reg = irq_reg_readl(gc, JZ_REG_INTC_PENDING); - if (!irq_reg) + pending = irq_reg_readl(gc, JZ_REG_INTC_PENDING); + if (!pending) continue; - irq = irq_find_mapping(domain, __fls(irq_reg) + (i * 32)); - generic_handle_irq(irq); + while (pending) { + int bit = __fls(pending); + + irq = irq_find_mapping(domain, bit + (i * 32)); + generic_handle_irq(irq); + pending &= ~BIT(bit); + } } return IRQ_HANDLED; |