linux-kernel - [PATCH v2] dt-bindings: pwm: brcm,kona-pwm: convert to YAML

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Message-ID: <20230508110231.GA19395@standask-GA-A55M-S2HP>
Date:   Mon, 8 May 2023 13:02:31 +0200
From:   Stanislav Jakubek <stano.jakubek@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>
Cc:     bcm-kernel-feedback-list@...adcom.com, linux-pwm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] dt-bindings: pwm: brcm,kona-pwm: convert to YAML

Convert Broadcom Kona family PWM controller bindings to DT schema.

Change during conversion:
  - add used, but previously undocumented brcm,bcm11351-pwm compatible

Signed-off-by: Stanislav Jakubek <stano.jakubek@...il.com>
---
Changes in V2:
  - mention the new compatible in the commit message (Krzysztof)
  
 .../devicetree/bindings/pwm/brcm,kona-pwm.txt | 21 --------
 .../bindings/pwm/brcm,kona-pwm.yaml           | 51 +++++++++++++++++++
 2 files changed, 51 insertions(+), 21 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/pwm/brcm,kona-pwm.txt
 create mode 100644 Documentation/devicetree/bindings/pwm/brcm,kona-pwm.yaml

diff --git a/Documentation/devicetree/bindings/pwm/brcm,kona-pwm.txt b/Documentation/devicetree/bindings/pwm/brcm,kona-pwm.txt
deleted file mode 100644
index c42eecfc81ed..000000000000
--- a/Documentation/devicetree/bindings/pwm/brcm,kona-pwm.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-Broadcom Kona PWM controller device tree bindings
-
-This controller has 6 channels.
-
-Required Properties :
-- compatible: should contain "brcm,kona-pwm"
-- reg: physical base address and length of the controller's registers
-- clocks: phandle + clock specifier pair for the external clock
-- #pwm-cells: Should be 3. See pwm.yaml in this directory for a
-  description of the cells format.
-
-Refer to clocks/clock-bindings.txt for generic clock consumer properties.
-
-Example:
-
-pwm: pwm@...1a000 {
-	compatible = "brcm,bcm11351-pwm", "brcm,kona-pwm";
-	reg = <0x3e01a000 0xc4>;
-	clocks = <&pwm_clk>;
-	#pwm-cells = <3>;
-};
diff --git a/Documentation/devicetree/bindings/pwm/brcm,kona-pwm.yaml b/Documentation/devicetree/bindings/pwm/brcm,kona-pwm.yaml
new file mode 100644
index 000000000000..d1a58d130708
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/brcm,kona-pwm.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/brcm,kona-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom Kona family PWM controller
+
+description:
+  This controller has 6 channels.
+
+maintainers:
+  - Florian Fainelli <f.fainelli@...il.com>
+
+allOf:
+  - $ref: pwm.yaml#
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - brcm,bcm11351-pwm
+      - const: brcm,kona-pwm
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  '#pwm-cells':
+    const: 3
+
+required:
+  - compatible
+  - reg
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include "dt-bindings/clock/bcm281xx.h"
+
+    pwm@...1a000 {
+       compatible = "brcm,bcm11351-pwm", "brcm,kona-pwm";
+       reg = <0x3e01a000 0xcc>;
+       clocks = <&slave_ccu BCM281XX_SLAVE_CCU_PWM>;
+       #pwm-cells = <3>;
+    };
+...
-- 
2.25.1