On 1/31/19 7:39 AM, Bartosz Golaszewski wrote:
From: Bartosz Golaszewski <bgolaszew...@baylibre.com>
We need to create an irq domain if we want to select SPARSE_IRQ. The
cp-intc driver already supports it, but aintc doesn't. Use the helpers
provided by the generic irq chip abstraction.
Signed-off-by: Bartosz Golaszewski <bgolaszew...@baylibre.com>
---
arch/arm/mach-davinci/irq.c | 38 ++++++++++++++++++++++++++-----------
1 file changed, 27 insertions(+), 11 deletions(-)
diff --git a/arch/arm/mach-davinci/irq.c b/arch/arm/mach-davinci/irq.c
index e539bc65d4ef..c874ea269411 100644
--- a/arch/arm/mach-davinci/irq.c
+++ b/arch/arm/mach-davinci/irq.c
@@ -23,6 +23,7 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/io.h>
+#include <linux/irqdomain.h>
#include <mach/hardware.h>
#include <mach/cputype.h>
@@ -43,6 +44,7 @@
#define IRQ_INTPRI7_REG_OFFSET 0x004C
static void __iomem *davinci_intc_base;
+static struct irq_domain *davinci_irq_domain;
static inline void davinci_irq_writel(unsigned long value, int offset)
{
@@ -55,17 +57,15 @@ static inline unsigned long davinci_irq_readl(int offset)
}
static __init void
-davinci_alloc_gc(void __iomem *base, unsigned int irq_start, unsigned int num)
+davinci_irq_setup_gc(void __iomem *base,
+ unsigned int irq_start, unsigned int num)
{
struct irq_chip_generic *gc;
struct irq_chip_type *ct;
- gc = irq_alloc_generic_chip("AINTC", 1, irq_start, base, handle_edge_irq);
- if (!gc) {
- pr_err("%s: irq_alloc_generic_chip for IRQ %u failed\n",
- __func__, irq_start);
- return;
- }
+ gc = irq_get_domain_generic_chip(davinci_irq_domain, irq_start);
check for (gc == NULL) here?
