diff mbox series

[v5,4/6] dt-bindings: dw-apb-ictl: support hierarchy irq domain

Message ID 20200918112202.3418-5-thunder.leizhen@huawei.com
State New
Headers show
Series [v5,1/6] genirq: define an empty function set_handle_irq() if !GENERIC_IRQ_MULTI_HANDLER | expand

Commit Message

Leizhen (ThunderTown) Sept. 18, 2020, 11:22 a.m. UTC 
Add support to use dw-apb-ictl as primary interrupt controller.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
---
 .../bindings/interrupt-controller/snps,dw-apb-ictl.txt     | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

Comments

Rob Herring (Arm) Sept. 23, 2020, 8:49 p.m. UTC | #1 
On Fri, 18 Sep 2020 19:22:00 +0800, Zhen Lei wrote:
> Add support to use dw-apb-ictl as primary interrupt controller.
> 
> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
> ---
>  .../bindings/interrupt-controller/snps,dw-apb-ictl.txt     | 14 +++++++++++++-
>  1 file changed, 13 insertions(+), 1 deletion(-)
> 

Reviewed-by: Rob Herring <robh@kernel.org>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/interrupt-controller/snps,dw-apb-ictl.txt b/Documentation/devicetree/bindings/interrupt-controller/snps,dw-apb-ictl.txt
index 086ff08322db94f..2db59df9408f4c6 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/snps,dw-apb-ictl.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/snps,dw-apb-ictl.txt
@@ -2,7 +2,8 @@  Synopsys DesignWare APB interrupt controller (dw_apb_ictl)
 
 Synopsys DesignWare provides interrupt controller IP for APB known as
 dw_apb_ictl. The IP is used as secondary interrupt controller in some SoCs with
-APB bus, e.g. Marvell Armada 1500.
+APB bus, e.g. Marvell Armada 1500. It can also be used as primary interrupt
+controller in some SoCs, e.g. Hisilicon SD5203.
 
 Required properties:
 - compatible: shall be "snps,dw-apb-ictl"
@@ -10,6 +11,8 @@  Required properties:
   region starting with ENABLE_LOW register
 - interrupt-controller: identifies the node as an interrupt controller
 - #interrupt-cells: number of cells to encode an interrupt-specifier, shall be 1
+
+Additional required property when it's used as secondary interrupt controller:
 - interrupts: interrupt reference to primary interrupt controller
 
 The interrupt sources map to the corresponding bits in the interrupt
@@ -21,6 +24,7 @@  registers, i.e.
 - (optional) fast interrupts start at 64.
 
 Example:
+	/* dw_apb_ictl is used as secondary interrupt controller */
 	aic: interrupt-controller@3000 {
 		compatible = "snps,dw-apb-ictl";
 		reg = <0x3000 0xc00>;
@@ -29,3 +33,11 @@  Example:
 		interrupt-parent = <&gic>;
 		interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
 	};
+
+	/* dw_apb_ictl is used as primary interrupt controller */
+	vic: interrupt-controller@10130000 {
+		compatible = "snps,dw-apb-ictl";
+		reg = <0x10130000 0x1000>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
+	};