Thread (8 messages) 8 messages, 2 authors, 2022-04-26

Re: [PATCH v2 1/2] dt-bindings: interrupt-controller: fsl, ls-extirq: convert to YAML

From: Krzysztof Kozlowski <hidden>
Date: 2022-04-25 18:37:01
Also in: linux-devicetree, linuxppc-dev, lkml

On 25/04/2022 16:02, Michael Walle wrote:
Convert the fsl,ls-extirq binding to the new YAML format.
(...)
quoted hunk ↗ jump to hunk
diff --git a/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-extirq.yaml b/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-extirq.yaml
new file mode 100644
index 000000000000..39d120ad7549
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-extirq.yaml
@@ -0,0 +1,88 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/fsl,ls-extirq.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale Layerscape External Interrupt Controller
+
+maintainers:
+  - Shawn Guo <shawnguo@kernel.org>
+  - Li Yang <leoyang.li@nxp.com>
+
+description: |
+  Some Layerscape SOCs (LS1021A, LS1043A, LS1046A LS1088A, LS208xA,
+  LX216xA) support inverting the polarity of certain external interrupt
+  lines.
+
+allOf:
+  - $ref: /schemas/interrupt-controller.yaml#
I have doubts whether this is here applicable. See also Rob's comment:
https://lore.kernel.org/all/YjjJpxLWJ%2FYOe0OX@robh.at.kernel.org/ (local)

This device does not have children, so the interrupt-controller schema
should be probably skipped.

+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - fsl,ls1021a-extirq
+          - fsl,ls1043a-extirq
+          - fsl,ls1088a-extirq
+      - items:
+          - enum:
+              - fsl,ls1046a-extirq
+          - const: fsl,ls1043a-extirq
+      - items:
+          - enum:
+              - fsl,ls2080a-extirq
+              - fsl,lx2160a-extirq
+          - const: fsl,ls1088a-extirq
+
+  '#interrupt-cells':
+    const: 2
+
+  '#address-cells':
+    const: 0
+
+  interrupt-controller: true
+
+  reg:
+    maxItems: 1
+    description:
+      Specifies the Interrupt Polarity Control Register (INTPCR) in the
+      SCFG or the External Interrupt Control Register (IRQCR) in the ISC.
+
+  interrupt-map:
+    description: Specifies the mapping from external interrupts to GIC interrupts.
+
+  interrupt-map-mask:
+    items:
+      - const: 0xffffffff
This looks highly permissive mask and should be instead defined per
variant, for example (quickly looking at DTS):
0x7 for ls1021
0xf for ls1043a and ls1088a

You might need to correct the DTS. Some confirmation from someone with
datasheet would be good.


Best regards,
Krzysztof

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