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From:   Wadim Egorov <w.egorov@phytec.de>
To:     <upstream@lists.phytec.de>, <linux-kernel@vger.kernel.org>,
        <devicetree@vger.kernel.org>, <linux-leds@vger.kernel.org>
CC:     <riku.voipio@iki.fi>, <krzysztof.kozlowski+dt@linaro.org>,
        <robh+dt@kernel.org>, <lee@kernel.org>, <pavel@ucw.cz>
Subject: [PATCH v3] dt-bindings: leds: Convert PCA9532 to dtschema
Date:   Wed, 12 Apr 2023 16:05:51 +0200
Message-ID: <20230412140552.451527-1-w.egorov@phytec.de>
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Convert the PCA9532 LED Dimmer to dtschema.
While at it, update the example to match recommended node names and
the link to the product datasheet. Also add GPIO properties since
the driver allows to use unused pins as GPIOs.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
---
v3:
  - Add gpio-controller & gpio-cells property, fixes
    arch/arm/boot/dts/lpc3250-ea3250.dtb: pca9532@60: '#gpio-cells', 'gpio-controller'
    do not match any of the regexes: '^led-[0-9a-z]+$', 'pinctrl-[0-9]+'

v2:
  - Rename yaml file to match compatibles, nxp,pca953x.yaml
  - Remove Jacek Anaszewski from maintainers list
  - Remove color labels in example
  - Restore labels/default-states from original example
  - Drop reg description
  - Add unevaluatedProperties to patternProperties scope
  - Update description of type property & set default to 0
  - Fix indentation in example
---
 .../devicetree/bindings/leds/leds-pca9532.txt | 49 ----------
 .../devicetree/bindings/leds/nxp,pca953x.yaml | 90 +++++++++++++++++++
 2 files changed, 90 insertions(+), 49 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/leds/leds-pca9532.txt
 create mode 100644 Documentation/devicetree/bindings/leds/nxp,pca953x.yaml

diff --git a/Documentation/devicetree/bindings/leds/leds-pca9532.txt b/Documentation/devicetree/bindings/leds/leds-pca9532.txt
deleted file mode 100644
index f769c52e3643..000000000000
--- a/Documentation/devicetree/bindings/leds/leds-pca9532.txt
+++ /dev/null
@@ -1,49 +0,0 @@
-*NXP - pca9532 PWM LED Driver
-
-The PCA9532 family is SMBus I/O expander optimized for dimming LEDs.
-The PWM support 256 steps.
-
-Required properties:
-	- compatible:
-		"nxp,pca9530"
-		"nxp,pca9531"
-		"nxp,pca9532"
-		"nxp,pca9533"
-	- reg -  I2C slave address
-
-Each led is represented as a sub-node of the nxp,pca9530.
-
-Optional sub-node properties:
-	- label: see Documentation/devicetree/bindings/leds/common.txt
-	- type: Output configuration, see dt-bindings/leds/leds-pca9532.h (default NONE)
-	- linux,default-trigger: see Documentation/devicetree/bindings/leds/common.txt
-	- default-state: see Documentation/devicetree/bindings/leds/common.txt
-	  This property is only valid for sub-nodes of type <PCA9532_TYPE_LED>.
-
-Example:
-  #include <dt-bindings/leds/leds-pca9532.h>
-
-  leds: pca9530@60 {
-    compatible = "nxp,pca9530";
-    reg = <0x60>;
-
-    red-power {
-      label = "pca:red:power";
-      type = <PCA9532_TYPE_LED>;
-    };
-    green-power {
-      label = "pca:green:power";
-      type = <PCA9532_TYPE_LED>;
-    };
-    kernel-booting {
-      type = <PCA9532_TYPE_LED>;
-      default-state = "on";
-    };
-    sys-stat {
-      type = <PCA9532_TYPE_LED>;
-      default-state = "keep"; // don't touch, was set by U-Boot
-    };
-  };
-
-For more product information please see the link below:
-http://nxp.com/documents/data_sheet/PCA9532.pdf
diff --git a/Documentation/devicetree/bindings/leds/nxp,pca953x.yaml b/Documentation/devicetree/bindings/leds/nxp,pca953x.yaml
new file mode 100644
index 000000000000..edf6f55df685
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/nxp,pca953x.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/nxp,pca953x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP PCA9532 LED Dimmer
+
+maintainers:
+  - Riku Voipio <riku.voipio@iki.fi>
+
+description: |
+  The PCA9532 family is SMBus I/O expander optimized for dimming LEDs.
+  The PWM support 256 steps.
+
+  For more product information please see the link below:
+    https://www.nxp.com/docs/en/data-sheet/PCA9532.pdf
+
+properties:
+  compatible:
+    enum:
+      - nxp,pca9530
+      - nxp,pca9531
+      - nxp,pca9532
+      - nxp,pca9533
+
+  reg:
+    maxItems: 1
+
+  gpio-controller: true
+
+  '#gpio-cells':
+    const: 2
+
+patternProperties:
+  "^led-[0-9a-z]+$":
+    type: object
+    $ref: common.yaml#
+    unevaluatedProperties: false
+
+    properties:
+      type:
+        description: |
+          Output configuration, see include/dt-bindings/leds/leds-pca9532.h
+        $ref: /schemas/types.yaml#/definitions/uint32
+        default: 0
+        minimum: 0
+        maximum: 4
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/leds/leds-pca9532.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        led-controller@62 {
+            compatible = "nxp,pca9533";
+            reg = <0x62>;
+
+            led-1 {
+                label = "pca:red:power";
+                type = <PCA9532_TYPE_LED>;
+            };
+
+            led-2 {
+                label = "pca:green:power";
+                type = <PCA9532_TYPE_LED>;
+            };
+
+            led-3 {
+                type = <PCA9532_TYPE_LED>;
+                default-state = "on";
+            };
+
+            led-4 {
+                type = <PCA9532_TYPE_LED>;
+                default-state = "keep";
+            };
+        };
+    };
+
+...
-- 
2.25.1