[RFC PATCH 1/2] dt-bindings: irqchip: Update bindings to drop the usage of gic as parent

From: Lokesh Vutla <lokeshvutla@ti•com>
To: Marc Zyngier <maz@kernel•org>
Cc: Nishanth Menon <nm@ti•com>, Lokesh Vutla <lokeshvutla@ti•com>,
	Linux ARM Mailing List <linux-arm-kernel@lists•infradead.org>
Subject: [RFC PATCH 1/2] dt-bindings: irqchip: Update bindings to drop the usage of gic as parent
Date: Mon, 23 Sep 2019 09:54:04 +0530	[thread overview]
Message-ID: <20190923042405.26064-2-lokeshvutla@ti.com> (raw)
In-Reply-To: <20190923042405.26064-1-lokeshvutla@ti.com>

Drop the firmware related dt-bindings and use the hardware specified
interrupt numbers within Interrupt Router. This ensures interrupt router
DT node need not assume any interrupt parent type.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti•com>
---
 .../interrupt-controller/ti,sci-intr.txt      | 28 +++++++++----------
 1 file changed, 13 insertions(+), 15 deletions(-)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.txt b/Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.txt
index 1a8718f8855d..de5de2a4b467 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.txt
@@ -44,15 +44,14 @@ Required Properties:
 			4: If intr supports level triggered interrupts.
 - interrupt-controller:	Identifies the node as an interrupt controller
 - #interrupt-cells:	Specifies the number of cells needed to encode an
-			interrupt source. The value should be 2.
-			First cell should contain the TISCI device ID of source
-			Second cell should contain the interrupt source offset
-			within the device.
+			interrupt source. The value should be 1.
+			First cell should contain interrupt router input number
+			as specified by hardware.
+- power-domains:	phandle pointing to the corresponding PM domain node
+			and an ID representing the device.
 - ti,sci:		Phandle to TI-SCI compatible System controller node.
-- ti,sci-dst-id:	TISCI device ID of the destination IRQ controller.
-- ti,sci-rm-range-girq:	Array of TISCI subtype ids representing the host irqs
-			assigned to this interrupt router. Each subtype id
-			corresponds to a range of host irqs.
+- interrupt-ranges:	Ranges that convert the INTR output interrupt numbers to
+			parent's interrupt number.
 
 For more details on TISCI IRQ resource management refer:
 http://downloads.ti.com/tisci/esd/latest/2_tisci_msgs/rm/rm_irq.html
@@ -62,21 +61,20 @@ Example:
 The following example demonstrates both interrupt router node and the consumer
 node(main gpio) on the AM654 SoC:
 
-main_intr: interrupt-controller0 {
+main_gpio_intr: interrupt-controller0 {
 	compatible = "ti,sci-intr";
 	ti,intr-trigger-type = <1>;
 	interrupt-controller;
 	interrupt-parent = <&gic500>;
-	#interrupt-cells = <2>;
+	power-domains = <&k3_pds 131 TI_SCI_PD_SHARED>;
+	#interrupt-cells = <1>;
 	ti,sci = <&dmsc>;
-	ti,sci-dst-id = <56>;
-	ti,sci-rm-range-girq = <0x1>;
+	interrupt-ranges = <0 360 32>;
 };
 
 main_gpio0: gpio@600000 {
 	...
-	interrupt-parent = <&main_intr>;
-	interrupts = <57 256>, <57 257>, <57 258>,
-		     <57 259>, <57 260>, <57 261>;
+	interrupt-parent = <&main_gpio_intr>;
+	interrupts = <192>, <193>, <194>, <195>, <196>, <197>;
 	...
 };
-- 
2.22.0


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