linux-kernel - [PATCH v3] dt-bindings: firmware: brcm,kona-smc: convert to YAML

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Message-ID: <20230508103255.GA18424@standask-GA-A55M-S2HP>
Date:   Mon, 8 May 2023 12:32:55 +0200
From:   Stanislav Jakubek <stano.jakubek@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>
Cc:     bcm-kernel-feedback-list@...adcom.com, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v3] dt-bindings: firmware: brcm,kona-smc: convert to YAML

Convert Broadcom Kona family Secure Monitor bounce buffer bindings
to DT schema.

Changes during conversion:
  - move from misc to firmware subdirectory
  - add used, but previously undocumented SoC-specific compatibles
  - drop deprecated compatibles (they've been deprecated for ~10 years)

Signed-off-by: Stanislav Jakubek <stano.jakubek@...il.com>
---
Changes in V3:
  - remove unnecessary oneOf (Krzysztof)

Changes in V2:
  - move to firmware subdirectory (Krzysztof)
  - drop deprecated compatibles (Krzysztof)
  - adjusted commit message to reflect the above changes
  
 .../bindings/firmware/brcm,kona-smc.yaml      | 39 +++++++++++++++++++
 .../bindings/misc/brcm,kona-smc.txt           | 15 -------
 2 files changed, 39 insertions(+), 15 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/firmware/brcm,kona-smc.yaml
 delete mode 100644 Documentation/devicetree/bindings/misc/brcm,kona-smc.txt

diff --git a/Documentation/devicetree/bindings/firmware/brcm,kona-smc.yaml b/Documentation/devicetree/bindings/firmware/brcm,kona-smc.yaml
new file mode 100644
index 000000000000..684b15ba9ad0
--- /dev/null
+++ b/Documentation/devicetree/bindings/firmware/brcm,kona-smc.yaml
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/firmware/brcm,kona-smc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom Kona family Secure Monitor bounce buffer
+
+description:
+  A bounce buffer used for non-secure to secure communications.
+
+maintainers:
+  - Florian Fainelli <f.fainelli@...il.com>
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - brcm,bcm11351-smc
+          - brcm,bcm21664-smc
+          - brcm,bcm23550-smc
+      - const: brcm,kona-smc
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    smc@...4c000 {
+        compatible = "brcm,bcm11351-smc", "brcm,kona-smc";
+        reg = <0x3404c000 0x400>; /* 1 KiB in SRAM */
+    };
+...
diff --git a/Documentation/devicetree/bindings/misc/brcm,kona-smc.txt b/Documentation/devicetree/bindings/misc/brcm,kona-smc.txt
deleted file mode 100644
index 05b47232ed9e..000000000000
--- a/Documentation/devicetree/bindings/misc/brcm,kona-smc.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-Broadcom Secure Monitor Bounce buffer
------------------------------------------------------
-This binding defines the location of the bounce buffer
-used for non-secure to secure communications.
-
-Required properties:
-- compatible : "brcm,kona-smc"
-- DEPRECATED: compatible : "bcm,kona-smc"
-- reg : Location and size of bounce buffer
-
-Example:
-	smc@...4c000 {
-		compatible = "brcm,bcm11351-smc", "brcm,kona-smc";
-		reg = <0x3404c000 0x400>; //1 KiB in SRAM
-	};
-- 
2.25.1