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path: root/drivers/irqchip/irq-mtk-sysirq.c
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Diffstat (limited to 'drivers/irqchip/irq-mtk-sysirq.c')
-rw-r--r--drivers/irqchip/irq-mtk-sysirq.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/irqchip/irq-mtk-sysirq.c b/drivers/irqchip/irq-mtk-sysirq.c
index 0b0d2c00a2df..eaf0a710e98a 100644
--- a/drivers/irqchip/irq-mtk-sysirq.c
+++ b/drivers/irqchip/irq-mtk-sysirq.c
@@ -23,8 +23,6 @@
#include "irqchip.h"
-#define MT6577_SYS_INTPOL_NUM (224)
-
struct mtk_sysirq_chip_data {
spinlock_t lock;
void __iomem *intpol_base;
@@ -124,7 +122,8 @@ static int __init mtk_sysirq_of_init(struct device_node *node,
{
struct irq_domain *domain, *domain_parent;
struct mtk_sysirq_chip_data *chip_data;
- int ret = 0;
+ int ret, size, intpol_num;
+ struct resource res;
domain_parent = irq_find_host(parent);
if (!domain_parent) {
@@ -132,19 +131,24 @@ static int __init mtk_sysirq_of_init(struct device_node *node,
return -EINVAL;
}
+ ret = of_address_to_resource(node, 0, &res);
+ if (ret)
+ return ret;
+
chip_data = kzalloc(sizeof(*chip_data), GFP_KERNEL);
if (!chip_data)
return -ENOMEM;
- chip_data->intpol_base = of_io_request_and_map(node, 0, "intpol");
- if (IS_ERR(chip_data->intpol_base)) {
+ size = resource_size(&res);
+ intpol_num = size * 8;
+ chip_data->intpol_base = ioremap(res.start, size);
+ if (!chip_data->intpol_base) {
pr_err("mtk_sysirq: unable to map sysirq register\n");
ret = PTR_ERR(chip_data->intpol_base);
goto out_free;
}
- domain = irq_domain_add_hierarchy(domain_parent, 0,
- MT6577_SYS_INTPOL_NUM, node,
+ domain = irq_domain_add_hierarchy(domain_parent, 0, intpol_num, node,
&sysirq_domain_ops, chip_data);
if (!domain) {
ret = -ENOMEM;