From: Guo Ren <ren_guo@xxxxxxxxx>
Add trigger type and priority setting for csky,mpintc. The driver also
could support #interrupt-cells <1> and it wouldn't invalidate existing
DTs. Here we only show the complete format.
Changes for V3:
- Update commit msg about compatible
Changes for V2:
- change #interrupt-cells to <3>
Signed-off-by: Guo Ren <ren_guo@xxxxxxxxx>
Cc: Marc Zyngier <marc.zyngier@xxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
---
.../bindings/interrupt-controller/csky,mpintc.txt | 21 +++++++++++++++++----
1 file changed, 17 insertions(+), 4 deletions(-)
diff --git a/Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt b/Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt
index ab921f1..dccd913 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt
@@ -6,11 +6,18 @@ C-SKY Multi-processors Interrupt Controller is designed for ck807/ck810/ck860
SMP soc, and it also could be used in non-SMP system.
Interrupt number definition:
-
0-15 : software irq, and we use 15 as our IPI_IRQ.
16-31 : private irq, and we use 16 as the co-processor timer.
31-1024: common irq for soc ip.
+Interrupt triger mode:
+ IRQ_TYPE_LEVEL_HIGH (default)
+ IRQ_TYPE_LEVEL_LOW
+ IRQ_TYPE_EDGE_RISING
+ IRQ_TYPE_EDGE_FALLING
+
+Interrupt priority range: 0-255
+
=============================
intc node bindings definition
=============================
@@ -26,15 +33,21 @@ intc node bindings definition
- #interrupt-cells
Usage: required
Value type: <u32>
- Definition: must be <1>
+ Definition: <3>
- interrupt-controller:
Usage: required
-Examples:
+Examples: ("interrupts = <irq_num IRQ_TYPE_XXX priority>")
---------
intc: interrupt-controller {
compatible = "csky,mpintc";
- #interrupt-cells = <1>;
+ #interrupt-cells = <3>;
interrupt-controller;
};
+
+ device: device-example {
+ ...
+ interrupts = <34 IRQ_TYPE_EDGE_RISING 254>;
+ interrupt-parent = <&intc>;
+ };
--
2.7.4
