Rename some functions and variables in advance, to make the next patch
looks more clear. The details are as follows:
1. rename dw_apb_ictl_handler() to dw_apb_ictl_handle_irq_cascaded().
In function dw_apb_ictl_init():
1. rename local variable irq to parent_irq.
2. add "const struct irq_domain_ops *domain_ops = &irq_generic_chip_ops",
then replace &irq_generic_chip_ops in other places with domain_ops.
3. add "irq_flow_handler_t flow_handler = handle_level_irq",
then replace handle_level_irq in other places with flow_handler.
No functional change.
Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
Tested-by: Haoyu Lv <lvhaoyu@xxxxxxxxxx>
---
drivers/irqchip/irq-dw-apb-ictl.c | 18 ++++++++++--------
1 file changed, 10 insertions(+), 8 deletions(-)
diff --git a/drivers/irqchip/irq-dw-apb-ictl.c b/drivers/irqchip/irq-dw-apb-ictl.c
index e4550e9c810b..aa6214da0b1f 100644
--- a/drivers/irqchip/irq-dw-apb-ictl.c
+++ b/drivers/irqchip/irq-dw-apb-ictl.c
@@ -26,7 +26,7 @@
#define APB_INT_FINALSTATUS_H 0x34
#define APB_INT_BASE_OFFSET 0x04
-static void dw_apb_ictl_handler(struct irq_desc *desc)
+static void dw_apb_ictl_handle_irq_cascaded(struct irq_desc *desc)
{
struct irq_domain *d = irq_desc_get_handler_data(desc);
struct irq_chip *chip = irq_desc_get_chip(desc);
@@ -73,12 +73,14 @@ static int __init dw_apb_ictl_init(struct device_node *np,
struct irq_domain *domain;
struct irq_chip_generic *gc;
void __iomem *iobase;
- int ret, nrirqs, irq, i;
+ int ret, nrirqs, parent_irq, i;
u32 reg;
+ const struct irq_domain_ops *domain_ops = &irq_generic_chip_ops;
+ irq_flow_handler_t flow_handler = handle_level_irq;
/* Map the parent interrupt for the chained handler */
- irq = irq_of_parse_and_map(np, 0);
- if (irq <= 0) {
+ parent_irq = irq_of_parse_and_map(np, 0);
+ if (parent_irq <= 0) {
pr_err("%pOF: unable to parse irq\n", np);
return -EINVAL;
}
@@ -120,8 +122,7 @@ static int __init dw_apb_ictl_init(struct device_node *np,
else
nrirqs = fls(readl_relaxed(iobase + APB_INT_ENABLE_L));
- domain = irq_domain_add_linear(np, nrirqs,
- &irq_generic_chip_ops, NULL);
+ domain = irq_domain_add_linear(np, nrirqs, domain_ops, NULL);
if (!domain) {
pr_err("%pOF: unable to add irq domain\n", np);
ret = -ENOMEM;
@@ -129,7 +130,7 @@ static int __init dw_apb_ictl_init(struct device_node *np,
}
ret = irq_alloc_domain_generic_chips(domain, 32, 1, np->name,
- handle_level_irq, clr, 0,
+ flow_handler, clr, 0,
IRQ_GC_INIT_MASK_CACHE);
if (ret) {
pr_err("%pOF: unable to alloc irq domain gc\n", np);
@@ -146,7 +147,8 @@ static int __init dw_apb_ictl_init(struct device_node *np,
gc->chip_types[0].chip.irq_resume = dw_apb_ictl_resume;
}
- irq_set_chained_handler_and_data(irq, dw_apb_ictl_handler, domain);
+ irq_set_chained_handler_and_data(parent_irq,
+ dw_apb_ictl_handle_irq_cascaded, domain);
return 0;
--
2.26.0.106.g9fadedd
