From: guoren@kernel.org
To: tglx@linutronix.de, jason@lakedaemon.net, marc.zyngier@arm.com,
robh+dt@kernel.org, mark.rutland@arm.com
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
guoren@kernel.org, Guo Ren <ren_guo@c-sky.com>
Subject: [PATCH V2 2/2] dt-bindings: interrupt-controller: Update csky mpintc
Date: Sat, 19 Jan 2019 00:52:51 +0800 [thread overview]
Message-ID: <1547830371-22122-2-git-send-email-guoren@kernel.org> (raw)
In-Reply-To: <1547830371-22122-1-git-send-email-guoren@kernel.org>
From: Guo Ren <ren_guo@c-sky.com>
Add trigger type and priority setting for csky,mpintc.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
---
.../bindings/interrupt-controller/csky,mpintc.txt | 33 +++++++++++++++++++---
1 file changed, 29 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..badbd38 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 +33,33 @@ intc node bindings definition
- #interrupt-cells
Usage: required
Value type: <u32>
- Definition: must be <1>
+ Definition: could be <1> or <2> or <3>
- interrupt-controller:
Usage: required
-Examples:
+Examples: ("interrupts = <irq IRQ_TYPE_XXX priority>")
---------
intc: interrupt-controller {
compatible = "csky,mpintc";
- #interrupt-cells = <1>;
+ #interrupt-cells = <3>;
interrupt-controller;
};
+
+ 0: device-example0 {
+ ...
+ interrupts = <33>;
+ interrupt-parent = <&intc>;
+ };
+
+ 1: device-example1 {
+ ...
+ interrupts = <33 IRQ_TYPE_EDGE_RISING>;
+ interrupt-parent = <&intc>;
+ };
+
+ 2: device-example2 {
+ ...
+ interrupts = <34 IRQ_TYPE_EDGE_RISING 254>;
+ interrupt-parent = <&intc>;
+ };
--
2.7.4
next prev parent reply other threads:[~2019-01-18 16:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-18 16:52 [PATCH V2 1/2] irqchip/irq-csky-mpintc: Add triger type and priority guoren
2019-01-18 16:52 ` guoren [this message]
2019-01-21 14:12 ` [PATCH V2 2/2] dt-bindings: interrupt-controller: Update csky mpintc Rob Herring
2019-01-21 14:55 ` Guo Ren
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