Re: [PATCH v2 2/5] irqchip: Add DT binding doc for dumb demuxer chips
From: Jason Cooper <hidden>
Date: 2015-01-13 19:01:38
Also in:
linux-arm-kernel, lkml
Boris, On Tue, Jan 13, 2015 at 07:46:18PM +0100, Boris Brezillon wrote:
quoted hunk ↗ jump to hunk
Add documentation for the dumb demuxer. Signed-off-by: Boris Brezillon <boris.brezillon-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> --- .../bindings/interrupt-controller/dumb-demux.txt | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/dumb-demux.txtdiff --git a/Documentation/devicetree/bindings/interrupt-controller/dumb-demux.txt b/Documentation/devicetree/bindings/interrupt-controller/dumb-demux.txt new file mode 100644 index 0000000..1c777ef --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/dumb-demux.txt@@ -0,0 +1,34 @@ +* Generic Dumb Interrupt Demultiplexer + +This Dumb demultiplixer simply forward all incoming interrupts to its +enabled/unmasked children.
Please forgive the potentially naïve question, but what hardware is this describing? thx, Jason.
+
+Required properties:
+- compatible: Should be "irqchip-dumb-demux".
+- interrupt-controller: Identifies the node as an interrupt controller.
+- interrupts-extended or interrupt-parent and interrupts: Reference the source
+ interrupt connected to this dumb demuxer.
+- #interrupt-cells: The number of cells to define the interrupts (should be 1).
+ The only cell is the IRQ number.
+- irqs: u32 bitfield specifying the interrupts provided by the demuxer.
+
+Examples:
+ /*
+ * Dumb demuxer controller
+ */
+ dumb_irq1_demux: dumb-irq-demux@1 {
+ compatible = "irqchip-dumb-demux";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ interrupts-extended = <&aic 1 IRQ_TYPE_LEVEL_HIGH 7>;
+ irqs = <0x3f>;
+ };
+
+ /*
+ * Device connected on this dumb demuxer
+ */
+ dma: dma-controller@ffffec00 {
+ compatible = "atmel,at91sam9g45-dma";
+ reg = <0xffffec00 0x200>;
+ interrupts-extended = <&dumb_irq1_demux 0>;
+ };
--
1.9.1-- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html