The irq_domain_add() function needs the number of interrupts in the
domain to properly initialize them. In addition the allocated domain
is now returned by the irq_domain_{add,generate}_simple() helpers.
Signed-off-by: Thierry Reding <thierry.red...@avionic-design.de>
---
arch/arm/mach-at91/board-dt.c | 6 +++++-
arch/arm/mach-imx/imx51-dt.c | 13 +++++++++++--
arch/arm/mach-imx/imx53-dt.c | 13 +++++++++++--
arch/arm/mach-imx/mach-imx6q.c | 4 +++-
arch/arm/mach-msm/board-msm8x60.c | 7 +++++--
arch/arm/mach-omap2/board-generic.c | 7 +++++--
arch/arm/mach-prima2/irq.c | 4 +++-
arch/arm/mach-versatile/core.c | 10 ++++++++--
arch/arm/plat-mxc/include/mach/irqs.h | 1 +
arch/arm/plat-mxc/tzic.c | 2 --
include/linux/irqdomain.h | 27 ++++++++++++++++++++++-----
kernel/irq/irqdomain.c | 30 +++++++++++++++++++-----------
12 files changed, 93 insertions(+), 31 deletions(-)
diff --git a/arch/arm/mach-at91/board-dt.c b/arch/arm/mach-at91/board-dt.c
index bb6b434..12f003d 100644
--- a/arch/arm/mach-at91/board-dt.c
+++ b/arch/arm/mach-at91/board-dt.c
@@ -95,7 +95,11 @@ static const struct of_device_id aic_of_match[] __initconst
= {
static void __init at91_dt_init_irq(void)
{
- irq_domain_generate_simple(aic_of_match, 0xfffff000, 0);
+ struct irq_domain *domain;
+
+ domain = irq_domain_generate_simple(aic_of_match, 0xfffff000, 0,
+ NR_AIC_IRQS);
+ WARN_ON(IS_ERR(domain));
at91_init_irq_default();
}
diff --git a/arch/arm/mach-imx/imx51-dt.c b/arch/arm/mach-imx/imx51-dt.c
index e6bad17..72bf94c 100644
--- a/arch/arm/mach-imx/imx51-dt.c
+++ b/arch/arm/mach-imx/imx51-dt.c
@@ -47,7 +47,12 @@ static const struct of_dev_auxdata imx51_auxdata_lookup[]
__initconst = {
static int __init imx51_tzic_add_irq_domain(struct device_node *np,
struct device_node *interrupt_parent)
{
- irq_domain_add_simple(np, 0);
+ struct irq_domain *domain;
+
+ domain = irq_domain_add_simple(np, 0, TZIC_NUM_IRQS);
+ if (IS_ERR(domain))
+ return PTR_ERR(domain);
+
return 0;
}
@@ -55,9 +60,13 @@ static int __init imx51_gpio_add_irq_domain(struct
device_node *np,
struct device_node *interrupt_parent)
{
static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS;
+ struct irq_domain *domain;
gpio_irq_base -= 32;
- irq_domain_add_simple(np, gpio_irq_base);
+
+ domain = irq_domain_add_simple(np, gpio_irq_base, 32);
+ if (IS_ERR(domain))
+ return PTR_ERR(domain);
return 0;
}
diff --git a/arch/arm/mach-imx/imx53-dt.c b/arch/arm/mach-imx/imx53-dt.c
index 05ebb3e..ccae620 100644
--- a/arch/arm/mach-imx/imx53-dt.c
+++ b/arch/arm/mach-imx/imx53-dt.c
@@ -51,7 +51,12 @@ static const struct of_dev_auxdata imx53_auxdata_lookup[]
__initconst = {
static int __init imx53_tzic_add_irq_domain(struct device_node *np,
struct device_node *interrupt_parent)
{
- irq_domain_add_simple(np, 0);
+ struct irq_domain *domain;
+
+ domain = irq_domain_add_simple(np, 0, TZIC_NUM_IRQS);
+ if (IS_ERR(domain))
+ return PTR_ERR(domain);
+
return 0;
}
@@ -59,9 +64,13 @@ static int __init imx53_gpio_add_irq_domain(struct
device_node *np,
struct device_node *interrupt_parent)
{
static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS;
+ struct irq_domain *domain;
gpio_irq_base -= 32;
- irq_domain_add_simple(np, gpio_irq_base);
+
+ domain = irq_domain_add_simple(np, gpio_irq_base, 32);
+ if (IS_ERR(domain))
+ return PTR_ERR(domain);
return 0;
}
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index c257281..9ed7812 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -95,9 +95,11 @@ static int __init imx6q_gpio_add_irq_domain(struct
device_node *np,
struct device_node *interrupt_parent)
{
static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS;
+ struct irq_domain *domain;
gpio_irq_base -= 32;
- irq_domain_add_simple(np, gpio_irq_base);
+ domain = irq_domain_add_simple(np, gpio_irq_base, 32);
+ WARN_ON(IS_ERR(domain));
return 0;
}
diff --git a/arch/arm/mach-msm/board-msm8x60.c
b/arch/arm/mach-msm/board-msm8x60.c
index 0a11342..a50c7e2 100644
--- a/arch/arm/mach-msm/board-msm8x60.c
+++ b/arch/arm/mach-msm/board-msm8x60.c
@@ -84,8 +84,11 @@ static void __init msm8x60_dt_init(void)
node = of_find_matching_node_by_address(NULL, msm_dt_gic_match,
MSM8X60_QGIC_DIST_PHYS);
- if (node)
- irq_domain_add_simple(node, GIC_SPI_START);
+ if (node) {
+ struct irq_domain *domain = irq_domain_add_simple(node,
+ GIC_SPI_START, NR_MSM_IRQS);
+ WARN_ON(IS_ERR(domain));
+ }
if (of_machine_is_compatible("qcom,msm8660-surf")) {
printk(KERN_INFO "Init surf UART registers\n");
diff --git a/arch/arm/mach-omap2/board-generic.c
b/arch/arm/mach-omap2/board-generic.c
index d587560..bf67781 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -66,8 +66,11 @@ static struct of_device_id intc_match[] __initdata = {
static void __init omap_generic_init(void)
{
struct device_node *node = of_find_matching_node(NULL, intc_match);
- if (node)
- irq_domain_add_simple(node, 0);
+ if (node) {
+ struct irq_domain *domain;
+ domain = irq_domain_add_simple(node, 0, INTCPS_NR_IRQS);
+ WARN_ON(IS_ERR(domain));
+ }
omap_sdrc_init(NULL, NULL);
diff --git a/arch/arm/mach-prima2/irq.c b/arch/arm/mach-prima2/irq.c
index d93ceef..d3c5136 100644
--- a/arch/arm/mach-prima2/irq.c
+++ b/arch/arm/mach-prima2/irq.c
@@ -58,6 +58,7 @@ static struct of_device_id intc_ids[] = {
void __init sirfsoc_of_irq_init(void)
{
+ struct irq_domain *domain;
struct device_node *np;
np = of_find_matching_node(NULL, intc_ids);
@@ -68,7 +69,8 @@ void __init sirfsoc_of_irq_init(void)
if (!sirfsoc_intc_base)
panic("unable to map intc cpu registers\n");
- irq_domain_add_simple(np, 0);
+ domain = irq_domain_add_simple(np, 0, NR_IRQS);
+ WARN_ON(IS_ERR(domain));
of_node_put(np);
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index 02b7b93..6c40be4 100644
--- a/arch/arm/mach-versatile/core.c
+++ b/arch/arm/mach-versatile/core.c
@@ -98,13 +98,19 @@ static const struct of_device_id sic_of_match[] __initconst
= {
void __init versatile_init_irq(void)
{
+ struct irq_domain *domain;
+
vic_init(VA_VIC_BASE, IRQ_VIC_START, ~0, 0);
- irq_domain_generate_simple(vic_of_match, VERSATILE_VIC_BASE,
IRQ_VIC_START);
+ domain = irq_domain_generate_simple(vic_of_match, VERSATILE_VIC_BASE,
+ IRQ_VIC_START, IRQ_VIC_END - IRQ_VIC_START + 1);
+ WARN_ON(IS_ERR(domain));
writel(~0, VA_SIC_BASE + SIC_IRQ_ENABLE_CLEAR);
fpga_irq_init(IRQ_VICSOURCE31, ~PIC_MASK, &sic_irq);
- irq_domain_generate_simple(sic_of_match, VERSATILE_SIC_BASE,
IRQ_SIC_START);
+ domain = irq_domain_generate_simple(sic_of_match, VERSATILE_SIC_BASE,
+ IRQ_SIC_START, IRQ_SIC_END - IRQ_SIC_START + 1);
+ WARN_ON(IS_ERR(domain));
/*
* Interrupts on secondary controller from 0 to 8 are routed to
diff --git a/arch/arm/plat-mxc/include/mach/irqs.h
b/arch/arm/plat-mxc/include/mach/irqs.h
index fd9efb0..2fda5aa 100644
--- a/arch/arm/plat-mxc/include/mach/irqs.h
+++ b/arch/arm/plat-mxc/include/mach/irqs.h
@@ -54,6 +54,7 @@
/* REVISIT: Add IPU irqs on IMX51 */
#define NR_IRQS (MXC_IPU_IRQ_START + MX3_IPU_IRQS)
+#define TZIC_NUM_IRQS 128
extern int imx_irq_set_priority(unsigned char irq, unsigned char prio);
diff --git a/arch/arm/plat-mxc/tzic.c b/arch/arm/plat-mxc/tzic.c
index 98308ec..98b23b8 100644
--- a/arch/arm/plat-mxc/tzic.c
+++ b/arch/arm/plat-mxc/tzic.c
@@ -50,8 +50,6 @@
void __iomem *tzic_base; /* Used as irq controller base in entry-macro.S */
-#define TZIC_NUM_IRQS 128
-
#ifdef CONFIG_FIQ
static int tzic_set_irq_fiq(unsigned int irq, unsigned int type)
{
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index bd4272b..1538d4c 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -15,6 +15,7 @@
#ifndef _LINUX_IRQDOMAIN_H
#define _LINUX_IRQDOMAIN_H
+#include <linux/err.h>
#include <linux/irq.h>
#include <linux/mod_devicetable.h>
@@ -96,12 +97,28 @@ extern struct irq_domain_ops irq_domain_simple_ops;
#endif /* CONFIG_IRQ_DOMAIN */
#if defined(CONFIG_IRQ_DOMAIN) && defined(CONFIG_OF_IRQ)
-extern void irq_domain_add_simple(struct device_node *controller, int
irq_base);
-extern void irq_domain_generate_simple(const struct of_device_id *match,
- u64 phys_base, unsigned int irq_start);
+extern struct irq_domain *irq_domain_add_simple(struct device_node *controller,
+ unsigned int irq_base,
+ unsigned int nr_irq);
+extern struct irq_domain *irq_domain_generate_simple(const struct of_device_id
*match,
+ u64 phys_base,
+ unsigned int irq_start,
+ unsigned int nr_irq);
#else /* CONFIG_IRQ_DOMAIN && CONFIG_OF_IRQ */
-static inline void irq_domain_generate_simple(const struct of_device_id *match,
- u64 phys_base, unsigned int irq_start)
{ }
+static inline struct irq_domain *irq_domain_add_simple(struct device_node
*controller,
+ int irq_base,
+ unsigned int nr_irq)
+{
+ return ERR_PTR(-ENOSYS);
+}
+
+static inline struct irq_domain *irq_domain_generate_simple(const struct
of_device_id *match,
+ u64 phys_base,
+ unsigned int
irq_start,
+ unsigned int nr_irq)
+{
+ return ERR_PTR(-ENOSYS);
+}
#endif /* CONFIG_IRQ_DOMAIN && CONFIG_OF_IRQ */
#endif /* _LINUX_IRQDOMAIN_H */
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 1f9e265..807c44b 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -147,36 +147,44 @@ int irq_domain_simple_dt_translate(struct irq_domain *d,
}
/**
- * irq_domain_create_simple() - Set up a 'simple' translation range
+ * irq_domain_add_simple() - Set up a 'simple' translation range
*/
-void irq_domain_add_simple(struct device_node *controller, int irq_base)
+struct irq_domain *irq_domain_add_simple(struct device_node *controller,
+ unsigned int irq_base,
+ unsigned int nr_irq)
{
struct irq_domain *domain;
domain = kzalloc(sizeof(*domain), GFP_KERNEL);
- if (!domain) {
- WARN_ON(1);
- return;
- }
+ if (!domain)
+ return ERR_PTR(-ENOMEM);
domain->irq_base = irq_base;
+ domain->nr_irq = nr_irq;
domain->of_node = of_node_get(controller);
domain->ops = &irq_domain_simple_ops;
irq_domain_add(domain);
+
+ return domain;
}
EXPORT_SYMBOL_GPL(irq_domain_add_simple);
-void irq_domain_generate_simple(const struct of_device_id *match,
- u64 phys_base, unsigned int irq_start)
+struct irq_domain *irq_domain_generate_simple(const struct of_device_id *match,
+ u64 phys_base,
+ unsigned int irq_start,
+ unsigned int nr_irq)
{
+ struct irq_domain *domain = ERR_PTR(-ENODEV);
struct device_node *node;
- pr_info("looking for phys_base=%llx, irq_start=%i\n",
- (unsigned long long) phys_base, (int) irq_start);
+ pr_info("looking for phys_base=%llx, irq_start=%u, nr_irq=%u\n",
+ (unsigned long long) phys_base, irq_start, nr_irq);
node = of_find_matching_node_by_address(NULL, match, phys_base);
if (node)
- irq_domain_add_simple(node, irq_start);
+ domain = irq_domain_add_simple(node, irq_start, nr_irq);
else
pr_info("no node found\n");
+
+ return domain;
}
EXPORT_SYMBOL_GPL(irq_domain_generate_simple);
#endif /* CONFIG_OF_IRQ */
--
1.7.8.1
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