On Thursday 14 November 2013 07:18 AM, Sricharan R wrote: > Some socs have a large number of interrupts requests to service > the needs of its many peripherals and subsystems. All of the interrupt > requests lines from the subsystems are not needed at the same > time, so they have to be muxed to the controllers appropriately. > In such places a interrupt controllers are preceded by an > IRQ CROSSBAR that provides flexibility in muxing the device interrupt > requests to the controller inputs. > > This series models the peripheral interrupts that can be routed through > the crossbar to the GIC as 'routable-irqs'. The routable irqs are added > in a separate linear domain inside the GIC. The registered routable domain's > callback are invoked as a part of the GIC's callback, which in turn should > allocate a free irq line and configure the IP accordingly. So every peripheral > in the dts files mentions the fixed crossbar number as its interrupt. A free > gic line for that gets allocated and configured when the peripheral interrupts > are mapped. > > The minimal crossbar driver to track and allocate free GIC lines and configure the > crossbar is added here, along with the DT bindings. > > V4: > Addressed a couple of comments and split the DTS file updates in to > a separate series. > Thanks for the split. For entire series, Acked-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
