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Message-ID: <20211123101826.9069-3-fe@dev.tdt.de>
Date: Tue, 23 Nov 2021 11:18:26 +0100
From: Florian Eckert <fe@....tdt.de>
To: pavel@....cz, robh+dt@...nel.org
Cc: linux-kernel@...r.kernel.org, linux-leds@...r.kernel.org,
devicetree@...r.kernel.org
Subject: [PATCH v2 2/2] dt: bindings: KTD20xx: Introduce the ktd20xx family of RGB drivers
Introduce the bindings for the Kinetic KTD2061/58/59/60RGB LED device
driver. The KTD20xx can control RGB LEDs individually or as part of a
control bank group.
Signed-off-by: Florian Eckert <fe@....tdt.de>
---
.../bindings/leds/leds-ktd20xx.yaml | 123 ++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 124 insertions(+)
create mode 100644 Documentation/devicetree/bindings/leds/leds-ktd20xx.yaml
diff --git a/Documentation/devicetree/bindings/leds/leds-ktd20xx.yaml b/Documentation/devicetree/bindings/leds/leds-ktd20xx.yaml
new file mode 100644
index 000000000000..b10b5fd507db
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-ktd20xx.yaml
@@ -0,0 +1,123 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/leds-ktd20xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LED driver for KTD20xx RGB LED from Kinetic.
+
+maintainers:
+ - Florian Eckert <fe@....tdt.de>
+
+description: |
+ The KTD20XX is multi-channel, I2C RGB LED Drivers that can group RGB LEDs into
+ a LED group or control them individually.
+
+ The difference in these RGB LED drivers is I2C address number the device is
+ listen on.
+
+properties:
+ compatible:
+ enum:
+ - kinetic,ktd20xx
+
+ reg:
+ maxItems: 1
+ description:
+ I2C slave address
+ ktd2061/58/59/60 0x68 0x69 0x6A 0x6B
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ 'kinetic,color-current0':
+ description:
+ Specifies the current selection for the RGB color0.
+ Value 1 must be the current value for the color red.
+ Value 2 must be the current value for the color green.
+ Value 3 must be the current value for the color blue.
+ The current setting range is from 0mA to 24mA with 125uA steps.
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ items:
+ - minItems: 3
+ - maxItems: 3
+
+ 'kinetic,color-current1':
+ description:
+ Specifies the current selection for the RGB color0.
+ Value 1 must be the current value for the color red.
+ Value 2 must be the current value for the color green.
+ Value 3 must be the current value for the color blue.
+ The current setting range is from 0mA to 24mA with 125uA steps.
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ items:
+ - minItems: 3
+ - maxItems: 3
+
+patternProperties:
+ '^multi-led@[0-9a-f]$':
+ type: object
+ allOf:
+ - $ref: leds-class-multicolor.yaml#
+ properties:
+ reg:
+ minItems: 1
+ maxItems: 12
+ description:
+ This property denotes the LED module number(s) that is used on the
+ for the child node.
+ 'kinetic,color-selection':
+ description:
+ Specifies the color selection for this LED.
+ Value 1 selects the color register for color red.
+ Value 2 selects the color register for color green.
+ Value 3 selects the color register for color blue.
+ The value can be either 0 or 1. If 0, the current for the color
+ from color register 0 is used. If 1, the current for the color
+ from color register 1 is used.
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ items:
+ - minItems: 3
+ - maxItems: 3
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/leds/common.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led-controller@14 {
+ compatible = "ti,lp5009";
+ reg = <0x14>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ color-current0 = [ 00 00 00 ] // Current for RGB is 0mA
+ color-current1 = [ 28 28 28 ] // Current for RGB is 5mA
+
+ multi-led@0 {
+ reg = <0x0>;
+ color = <LED_COLOR_ID_RGB>;
+ function = LED_FUNCTION_CHARGING;
+ kinetic,color-selection = [ 00 01 00 ]; // Red=0mA Green=5mA Blue=0mA
+ };
+
+ multi-led@2 {
+ reg = <0x2>;
+ color = <LED_COLOR_ID_RGB>;
+ function = LED_FUNCTION_STANDBY;
+ };
+ };
+ };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 736d564f7e93..125bae48c2d1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10607,6 +10607,7 @@ KTD20XX LED CONTROLLER DRIVER
M: Florian Eckert <fe@....tdt.de>
L: linux-leds@...r.kernel.org
S: Maintained
+F: Documentation/devicetree/bindings/leds/leds-ktd20xx.yaml
F: drivers/leds/leds-ktd20xx.c
KTEST
--
2.20.1
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