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Message-Id: <20250916-ams-txt-to-dt-schema-v2-1-6a9db6fb7ea3@thegoodpenguin.co.uk>
Date: Tue, 16 Sep 2025 16:11:01 +0100
From: Harrison Carter <hcarter@...goodpenguin.co.uk>
To: Lee Jones <lee@...nel.org>, Pavel Machek <pavel@...nel.org>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Sakari Ailus <sakari.ailus@...ux.intel.com>
Cc: linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
Harrison Carter <hcarter@...goodpenguin.co.uk>
Subject: [PATCH v2] dt-bindings: leds: as3645: Convert to DT schema
Convert the ams,as3645a.txt to DT Schema format.
Signed-off-by: Harrison Carter <hcarter@...goodpenguin.co.uk>
---
Changes in v2:
- removed unnecessary descriptions
- cleaned up clear text
- fixed syntax
- fixed line length
- Link to v1: https://lore.kernel.org/r/20250909-ams-txt-to-dt-schema-v1-1-8a30c25c8295@thegoodpenguin.co.uk
---
maintainer: set to what I found in MAINTAINERS
---
.../devicetree/bindings/leds/ams,as3645a.txt | 85 --------------
.../devicetree/bindings/leds/ams,as3645a.yaml | 130 +++++++++++++++++++++
2 files changed, 130 insertions(+), 85 deletions(-)
diff --git a/Documentation/devicetree/bindings/leds/ams,as3645a.txt b/Documentation/devicetree/bindings/leds/ams,as3645a.txt
deleted file mode 100644
index 4af2987b25e92394ebd46456e30002d3ae3a6101..0000000000000000000000000000000000000000
--- a/Documentation/devicetree/bindings/leds/ams,as3645a.txt
+++ /dev/null
@@ -1,85 +0,0 @@
-Analog devices AS3645A device tree bindings
-
-The AS3645A flash LED controller can drive two LEDs, one high current
-flash LED and one indicator LED. The high current flash LED can be
-used in torch mode as well.
-
-Ranges below noted as [a, b] are closed ranges between a and b, i.e. a
-and b are included in the range.
-
-Please also see common.txt in the same directory.
-
-
-Required properties
-===================
-
-compatible : Must be "ams,as3645a".
-reg : The I2C address of the device. Typically 0x30.
-#address-cells : 1
-#size-cells : 0
-
-
-Required properties of the flash child node (0)
-===============================================
-
-reg: 0
-flash-timeout-us: Flash timeout in microseconds. The value must be in
- the range [100000, 850000] and divisible by 50000.
-flash-max-microamp: Maximum flash current in microamperes. Has to be
- in the range between [200000, 500000] and
- divisible by 20000.
-led-max-microamp: Maximum torch (assist) current in microamperes. The
- value must be in the range between [20000, 160000] and
- divisible by 20000.
-ams,input-max-microamp: Maximum flash controller input current. The
- value must be in the range [1250000, 2000000]
- and divisible by 50000.
-
-
-Optional properties of the flash child node
-===========================================
-
-function : See Documentation/devicetree/bindings/leds/common.txt.
-color : See Documentation/devicetree/bindings/leds/common.txt.
-label : See Documentation/devicetree/bindings/leds/common.txt (deprecated).
-
-
-Required properties of the indicator child node (1)
-===================================================
-
-reg: 1
-led-max-microamp: Maximum indicator current. The allowed values are
- 2500, 5000, 7500 and 10000.
-
-Optional properties of the indicator child node
-===============================================
-
-function : See Documentation/devicetree/bindings/leds/common.txt.
-color : See Documentation/devicetree/bindings/leds/common.txt.
-label : See Documentation/devicetree/bindings/leds/common.txt (deprecated).
-
-
-Example
-=======
-
-#include <dt-bindings/leds/common.h>
-
- as3645a@30 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0x30>;
- compatible = "ams,as3645a";
- led@0 {
- reg = <0x0>;
- flash-timeout-us = <150000>;
- flash-max-microamp = <320000>;
- led-max-microamp = <60000>;
- ams,input-max-microamp = <1750000>;
- function = LED_FUNCTION_FLASH;
- };
- led@1 {
- reg = <0x1>;
- led-max-microamp = <10000>;
- function = LED_FUNCTION_INDICATOR;
- };
- };
diff --git a/Documentation/devicetree/bindings/leds/ams,as3645a.yaml b/Documentation/devicetree/bindings/leds/ams,as3645a.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..250a4b275d8a8af28c69d14a419587f7a3db6ef8
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/ams,as3645a.yaml
@@ -0,0 +1,130 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/ams,as3645a.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AS3645A LED Controller
+
+maintainers:
+ - Sakari Ailus <sakari.ailus@....fi>
+
+description:
+ The AS3645A flash LED controller can drive two LEDs, one
+ high current flash LED and one indicator LED. The high
+ current flash LED can be used in torch mode as well.
+
+properties:
+ compatible:
+ const: ams,as3645a
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ reg:
+ maxItems: 1
+
+ led@0:
+ description: led0 describes the 'flash' feature
+ type: object
+ $ref: common.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ reg:
+ const: 0
+
+ flash-timeout-us:
+ minimum: 100000
+ maximum: 850000
+ multipleOf: 50000
+
+ flash-max-microamp:
+ minimum: 200000
+ maximum: 500000
+ multipleOf: 20000
+
+ led-max-microamp:
+ minimum: 20000
+ maximum: 160000
+ multipleOf: 20000
+ description:
+ Maximum current when in torch (assist) mode.
+
+ ams,input-max-microamp:
+ minimum: 1250000
+ maximum: 2000000
+ multipleOf: 50000
+
+ required:
+ - reg
+ - flash-timeout-us
+ - flash-max-microamp
+ - led-max-microamp
+ - ams,input-max-microamp
+
+ led@1:
+ description: led1 describes the 'indicator' feature
+ type: object
+ $ref: common.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ reg:
+ const: 1
+
+ led-max-microamp:
+ enum:
+ - 2500
+ - 5000
+ - 7500
+ - 10000
+ description:
+ Maximum indicator current.
+
+ required:
+ - reg
+ - led-max-microamp
+
+required:
+ - compatible
+ - reg
+ - "#size-cells"
+ - "#address-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/leds/common.h>
+
+ i2c{
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led-controller@30 {
+ compatible = "ams,as3645a";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x30>;
+
+ led@0 {
+ reg = <0>;
+ flash-timeout-us = <150000>;
+ flash-max-microamp = <320000>;
+ led-max-microamp = <60000>;
+ ams,input-max-microamp = <1750000>;
+ function = LED_FUNCTION_FLASH;
+ };
+
+ led@1 {
+ reg = <1>;
+ led-max-microamp = <10000>;
+ function = LED_FUNCTION_INDICATOR;
+ };
+ };
+ };
+...
---
base-commit: c17b750b3ad9f45f2b6f7e6f7f4679844244f0b9
change-id: 20250906-ams-txt-to-dt-schema-a821e0e03c46
Best regards,
--
Harrison Carter <hcarter@...goodpenguin.co.uk>
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