linux-kernel - [PATCH v4] dt-bindings: irqchip: convert st,stih407-irq-syscfg to DT schema

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Message-ID: <20230905072740.23859-1-rgallaispou@gmail.com>
Date:   Tue,  5 Sep 2023 09:27:40 +0200
From:   Raphael Gallais-Pou <rgallaispou@...il.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Patrice Chotard <patrice.chotard@...s.st.com>
Cc:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Conor Dooley <conor.dooley@...rochip.com>
Subject: [PATCH v4] dt-bindings: irqchip: convert st,stih407-irq-syscfg to DT schema

Convert deprecated format to DT schema format.

Signed-off-by: Raphael Gallais-Pou <rgallaispou@...il.com>
Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>
---
Changes in v2:
	- Added Conor's r-by
	- Removed quotes surrounding $refs
	- Hardcoded 'st,invert-ext' possible values

Changes in v3:
	- Fixed enum syntax warnings
	- Removed reference to driver in favor of device

Changes in v4:
	- Make clearer description for "st,invert-ext" property
	- Handle better bitwise logic
---
 .../st,sti-irq-syscfg.txt                     | 30 ---------
 .../st,stih407-irq-syscfg.yaml                | 65 +++++++++++++++++++
 2 files changed, 65 insertions(+), 30 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/interrupt-controller/st,sti-irq-syscfg.txt
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/st,stih407-irq-syscfg.yaml

diff --git a/Documentation/devicetree/bindings/interrupt-controller/st,sti-irq-syscfg.txt b/Documentation/devicetree/bindings/interrupt-controller/st,sti-irq-syscfg.txt
deleted file mode 100644
index 977d7ed3670e..000000000000
--- a/Documentation/devicetree/bindings/interrupt-controller/st,sti-irq-syscfg.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-STMicroelectronics STi System Configuration Controlled IRQs
------------------------------------------------------------
-
-On STi based systems; External, CTI (Core Sight), PMU (Performance Management),
-and PL310 L2 Cache IRQs are controlled using System Configuration registers.
-This driver is used to unmask them prior to use.
-
-Required properties:
-- compatible	: Should be "st,stih407-irq-syscfg"
-- st,syscfg	: Phandle to Cortex-A9 IRQ system config registers
-- st,irq-device	: Array of IRQs to enable - should be 2 in length
-- st,fiq-device	: Array of FIQs to enable - should be 2 in length
-
-Optional properties:
-- st,invert-ext	: External IRQs can be inverted at will.  This property inverts
-		  these IRQs using bitwise logic.  A number of defines have been
-		  provided for convenience:
-			ST_IRQ_SYSCFG_EXT_1_INV
-			ST_IRQ_SYSCFG_EXT_2_INV
-			ST_IRQ_SYSCFG_EXT_3_INV
-Example:
-
-irq-syscfg {
-	compatible    = "st,stih407-irq-syscfg";
-	st,syscfg     = <&syscfg_cpu>;
-	st,irq-device = <ST_IRQ_SYSCFG_PMU_0>,
-			<ST_IRQ_SYSCFG_PMU_1>;
-	st,fiq-device = <ST_IRQ_SYSCFG_DISABLED>,
-			<ST_IRQ_SYSCFG_DISABLED>;
-};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/st,stih407-irq-syscfg.yaml b/Documentation/devicetree/bindings/interrupt-controller/st,stih407-irq-syscfg.yaml
new file mode 100644
index 000000000000..2b153d7c5421
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/st,stih407-irq-syscfg.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/st,stih407-irq-syscfg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STi System Configuration Controlled IRQs
+
+maintainers:
+  - Patrice Chotard <patrice.chotard@...s.st.com>
+
+description:
+  On STi based systems; External, CTI (Core Sight), PMU (Performance
+  Management), and PL310 L2 Cache IRQs are controlled using System
+  Configuration registers.  This device is used to unmask them prior to use.
+
+properties:
+  compatible:
+    const: st,stih407-irq-syscfg
+
+  st,syscfg:
+    description: Phandle to Cortex-A9 IRQ system config registers
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+  st,irq-device:
+    description: Array of IRQs to enable.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    items:
+      - description: Enable the IRQ of the channel one.
+      - description: Enable the IRQ of the channel two.
+
+  st,fiq-device:
+    description: Array of FIQs to enable.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    items:
+      - description: Enable the IRQ of the channel one.
+      - description: Enable the IRQ of the channel two.
+
+  st,invert-ext:
+    description: External IRQs can be inverted at will. This property inverts
+      these three IRQs using bitwise logic, each one being encoded respectively
+      on the first, second and fourth bit.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [ 1, 2, 3, 4, 5, 6 ]
+
+required:
+  - compatible
+  - st,syscfg
+  - st,irq-device
+  - st,fiq-device
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq-st.h>
+    irq-syscfg {
+        compatible    = "st,stih407-irq-syscfg";
+        st,syscfg     = <&syscfg_cpu>;
+        st,irq-device = <ST_IRQ_SYSCFG_PMU_0>,
+                        <ST_IRQ_SYSCFG_PMU_1>;
+        st,fiq-device = <ST_IRQ_SYSCFG_DISABLED>,
+                        <ST_IRQ_SYSCFG_DISABLED>;
+    };
+...
-- 
2.42.0