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authorLinus Walleij <linus.walleij@linaro.org>2012-04-20 08:02:03 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-04-25 12:57:07 +0100
commitfa943bed68c85e1ebac4b9dd6398ad6fd0f53567 (patch)
treecb89076b24ef3c58c2aa901569300ed90195b1c7 /arch/arm/common
parent98fab064d321f740fde24785d1421523d249fc0e (diff)
ARM: 7394/1: VIC: respect list of valid sources
The current IRQ domain implementation in the VIC allocates 32 interrupts for each VIC instance no matter whether the controller actually use all the IRQs or not. Alter this so we only allocate a domain up until the last IRQ marked valid. Cc: Will Deacon <will.deacon@arm.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Acked-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/common')
-rw-r--r--arch/arm/common/vic.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/arm/common/vic.c b/arch/arm/common/vic.c
index 7e288f96ced..c558a3e7f52 100644
--- a/arch/arm/common/vic.c
+++ b/arch/arm/common/vic.c
@@ -168,6 +168,7 @@ late_initcall(vic_pm_init);
* vic_register() - Register a VIC.
* @base: The base address of the VIC.
* @irq: The base IRQ for the VIC.
+ * @valid_sources: bitmask of valid interrupts
* @resume_sources: bitmask of interrupts allowed for resume sources.
* @node: The device tree node associated with the VIC.
*
@@ -178,7 +179,8 @@ late_initcall(vic_pm_init);
* This also configures the IRQ domain for the VIC.
*/
static void __init vic_register(void __iomem *base, unsigned int irq,
- u32 resume_sources, struct device_node *node)
+ u32 valid_sources, u32 resume_sources,
+ struct device_node *node)
{
struct vic_device *v;
@@ -192,8 +194,8 @@ static void __init vic_register(void __iomem *base, unsigned int irq,
v->resume_sources = resume_sources;
v->irq = irq;
vic_id++;
- v->domain = irq_domain_add_legacy(node, 32, irq, 0,
- &irq_domain_simple_ops, v);
+ v->domain = irq_domain_add_legacy(node, fls(valid_sources), irq, 0,
+ &vic_irqdomain_ops, v);
}
static void vic_ack_irq(struct irq_data *d)
@@ -339,7 +341,7 @@ static void __init vic_init_st(void __iomem *base, unsigned int irq_start,
}
vic_set_irq_sources(base, irq_start, vic_sources);
- vic_register(base, irq_start, 0, node);
+ vic_register(base, irq_start, vic_sources, 0, node);
}
void __init __vic_init(void __iomem *base, unsigned int irq_start,
@@ -381,7 +383,7 @@ void __init __vic_init(void __iomem *base, unsigned int irq_start,
vic_set_irq_sources(base, irq_start, vic_sources);
- vic_register(base, irq_start, resume_sources, node);
+ vic_register(base, irq_start, vic_sources, resume_sources, node);
}
/**