From: Rob Herring <[email protected]> Set the PIC_ENABLES register when the passthru-mask property is present. This enables interrupts on the secondary controller to be passed thru directly to the primary controller.
Signed-off-by: Rob Herring <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Jason Cooper <[email protected]> --- drivers/irqchip/irq-versatile-fpga.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/irqchip/irq-versatile-fpga.c b/drivers/irqchip/irq-versatile-fpga.c index 3ae2bb8..328440b 100644 --- a/drivers/irqchip/irq-versatile-fpga.c +++ b/drivers/irqchip/irq-versatile-fpga.c @@ -26,6 +26,8 @@ #define FIQ_ENABLE_SET 0x28 #define FIQ_ENABLE_CLEAR 0x2C +#define PIC_ENABLES 0x20 /* set interrupt pass through bits */ + /** * struct fpga_irq_data - irq data container for the FPGA IRQ controller * @base: memory offset in virtual memory @@ -185,6 +187,7 @@ int __init fpga_irq_of_init(struct device_node *node, void __iomem *base; u32 clear_mask; u32 valid_mask; + u32 passthru_mask; int parent_irq; if (WARN_ON(!node)) @@ -209,6 +212,9 @@ int __init fpga_irq_of_init(struct device_node *node, writel(clear_mask, base + IRQ_ENABLE_CLEAR); writel(clear_mask, base + FIQ_ENABLE_CLEAR); + if (!of_property_read_u32(node, "passthru-mask", &passthru_mask)) + writel(passthru_mask, base + PIC_ENABLES); + return 0; } #endif -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
