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path: root/drivers/irqchip/irq-armada-370-xp.c
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Diffstat (limited to 'drivers/irqchip/irq-armada-370-xp.c')
-rw-r--r--drivers/irqchip/irq-armada-370-xp.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c
index bb328a366122..26adc741f764 100644
--- a/drivers/irqchip/irq-armada-370-xp.c
+++ b/drivers/irqchip/irq-armada-370-xp.c
@@ -248,12 +248,25 @@ armada_370_xp_handle_irq(struct pt_regs *regs)
static int __init armada_370_xp_mpic_of_init(struct device_node *node,
struct device_node *parent)
{
+ struct resource main_int_res, per_cpu_int_res;
u32 control;
- main_int_base = of_iomap(node, 0);
- per_cpu_int_base = of_iomap(node, 1);
+ BUG_ON(of_address_to_resource(node, 0, &main_int_res));
+ BUG_ON(of_address_to_resource(node, 1, &per_cpu_int_res));
+ BUG_ON(!request_mem_region(main_int_res.start,
+ resource_size(&main_int_res),
+ node->full_name));
+ BUG_ON(!request_mem_region(per_cpu_int_res.start,
+ resource_size(&per_cpu_int_res),
+ node->full_name));
+
+ main_int_base = ioremap(main_int_res.start,
+ resource_size(&main_int_res));
BUG_ON(!main_int_base);
+
+ per_cpu_int_base = ioremap(per_cpu_int_res.start,
+ resource_size(&per_cpu_int_res));
BUG_ON(!per_cpu_int_base);
control = readl(main_int_base + ARMADA_370_XP_INT_CONTROL);
@@ -262,8 +275,7 @@ static int __init armada_370_xp_mpic_of_init(struct device_node *node,
irq_domain_add_linear(node, (control >> 2) & 0x3ff,
&armada_370_xp_mpic_irq_ops, NULL);
- if (!armada_370_xp_mpic_domain)
- panic("Unable to add Armada_370_Xp MPIC irq domain (DT)\n");
+ BUG_ON(!armada_370_xp_mpic_domain);
irq_set_default_host(armada_370_xp_mpic_domain);