linux-kernel - [PATCH v2 1/1] dt-bindings: interrupt-controller: fsl,ls-extirq: workaround wrong interrupt-map number

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Message-Id: <20241003214315.638668-1-Frank.Li@nxp.com>
Date: Thu,  3 Oct 2024 17:43:15 -0400
From: Frank Li <Frank.Li@....com>
To: Thomas Gleixner <tglx@...utronix.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	linux-kernel@...r.kernel.org (open list:IRQCHIP DRIVERS),
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS)
Cc: imx@...ts.linux.dev
Subject: [PATCH v2 1/1] dt-bindings: interrupt-controller: fsl,ls-extirq: workaround wrong interrupt-map number

The driver(drivers/irqchip/irq-ls-extirq.c) have not use standard DT
function to parser interrupt-map. So it doesn't consider '#address-size'
in parent interrupt controller, such as GIC.

When dt-binding verify interrupt-map, item data matrix is spitted at
incorrect position. So cause below warning:

arch/arm64/boot/dts/freescale/fsl-ls1088a-qds.dtb: interrupt-controller@14:
interrupt-map: [[0, 0, 1, 0, 0, 4, 1, 0], [1, 0, 1, 4, 2, 0, 1, 0], ...
is too short

Reduce minItems and maxItems to workaround this warning for
'fsl,ls1088a-extirq', 'fsl,ls2080a-extirq' and fsl,lx2160a-extirq.
Other keep the same restriction.

Signed-off-by: Frank Li <Frank.Li@....com>
---
Change from v1 to v2
- remove duplicate function in commit message
- only reduce miniItems for after 1088a chips
- maxItems change to 9. Otherwise report too long.
---
 .../interrupt-controller/fsl,ls-extirq.yaml   | 27 +++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-extirq.yaml b/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-extirq.yaml
index 199b34fdbefc4..1bfced6ed620c 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-extirq.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-extirq.yaml
@@ -82,14 +82,37 @@ allOf:
             enum:
               - fsl,ls1043a-extirq
               - fsl,ls1046a-extirq
+    then:
+      properties:
+        interrupt-map:
+          minItems: 12
+          maxItems: 12
+        interrupt-map-mask:
+          items:
+            - const: 0xf
+            - const: 0
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
               - fsl,ls1088a-extirq
               - fsl,ls2080a-extirq
               - fsl,lx2160a-extirq
+# The driver(drivers/irqchip/irq-ls-extirq.c) have not use standard DT
+# function function to parser interrupt-map. So it doesn't consider
+# '#address-size' in parent interrupt controller, such as GIC.
+#
+# When dt-binding verify interrupt-map, item data matrix is spitted at
+# incorrect position. Reduce minItems and maxItems to workaround this
+# problem.
+
     then:
       properties:
         interrupt-map:
-          minItems: 12
-          maxItems: 12
+          minItems: 8
+          maxItems: 9
         interrupt-map-mask:
           items:
             - const: 0xf
-- 
2.34.1