diff options
| author | Ingo Molnar <mingo@kernel.org> | 2014-02-02 09:45:39 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-02-02 09:45:39 +0100 |
| commit | eaa4e4fcf1b5c60e656d93242f7fe422173f25b2 (patch) | |
| tree | c05d5d6ca3f625d72a9d136b4c485d3dc9472089 /drivers/irqchip/irq-versatile-fpga.c | |
| parent | be1e4e760d940c14d119bffef5eb007dfdf29046 (diff) | |
| parent | 5cb480f6b488128140c940abff3c36f524a334a8 (diff) | |
Merge branch 'linus' into sched/core, to resolve conflicts
Conflicts:
kernel/sysctl.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/irqchip/irq-versatile-fpga.c')
| -rw-r--r-- | drivers/irqchip/irq-versatile-fpga.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/irqchip/irq-versatile-fpga.c b/drivers/irqchip/irq-versatile-fpga.c index 47a52ab580d8..3ae2bb8d9cf2 100644 --- a/drivers/irqchip/irq-versatile-fpga.c +++ b/drivers/irqchip/irq-versatile-fpga.c @@ -9,6 +9,7 @@ #include <linux/module.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/of_irq.h> #include <asm/exception.h> #include <asm/mach/irq.h> @@ -167,8 +168,12 @@ void __init fpga_irq_init(void __iomem *base, const char *name, int irq_start, f->used_irqs++; } - pr_info("FPGA IRQ chip %d \"%s\" @ %p, %u irqs\n", + pr_info("FPGA IRQ chip %d \"%s\" @ %p, %u irqs", fpga_irq_id, name, base, f->used_irqs); + if (parent_irq != -1) + pr_cont(", parent IRQ: %d\n", parent_irq); + else + pr_cont("\n"); fpga_irq_id++; } @@ -180,6 +185,7 @@ int __init fpga_irq_of_init(struct device_node *node, void __iomem *base; u32 clear_mask; u32 valid_mask; + int parent_irq; if (WARN_ON(!node)) return -ENODEV; @@ -193,7 +199,12 @@ int __init fpga_irq_of_init(struct device_node *node, if (of_property_read_u32(node, "valid-mask", &valid_mask)) valid_mask = 0; - fpga_irq_init(base, node->name, 0, -1, valid_mask, node); + /* Some chips are cascaded from a parent IRQ */ + parent_irq = irq_of_parse_and_map(node, 0); + if (!parent_irq) + parent_irq = -1; + + fpga_irq_init(base, node->name, 0, parent_irq, valid_mask, node); writel(clear_mask, base + IRQ_ENABLE_CLEAR); writel(clear_mask, base + FIQ_ENABLE_CLEAR); |