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Date: Tue, 11 May 2021 15:48:34 -0500
From: Doug Zobel <dougdev334@...il.com>
To: Pavel Machek <pavel@....cz>, Rob Herring <robh+dt@...nel.org>,
Jacek Anaszewski <jacek.anaszewski@...il.com>,
linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Doug Zobel <dougdev334@...il.com>
Subject: [PATCH 2/2] dt: bindings: lp55xx: Add predefined LED pattern
Add a new device tree object for LP5562 predfined led patterns.
Signed-off-by: Doug Zobel <dougdev334@...il.com>
---
.../devicetree/bindings/leds/leds-lp55xx.yaml | 103 +++++++++++++++++-
1 file changed, 102 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/leds/leds-lp55xx.yaml b/Documentation/devicetree/bindings/leds/leds-lp55xx.yaml
index f552cd143d5b..2524a84fe688 100644
--- a/Documentation/devicetree/bindings/leds/leds-lp55xx.yaml
+++ b/Documentation/devicetree/bindings/leds/leds-lp55xx.yaml
@@ -100,6 +100,31 @@ patternProperties:
$ref: /schemas/types.yaml#/definitions/string
description: name of channel
+ "(^pattern@[0-9a-f]$|pattern)":
+ type: object
+ $ref: common.yaml#
+ description: |
+ LP5562 sepcific object. LED pattern program saved to and run on LP5562.
+ properties:
+ pat-name:
+ $ref: /schemas/types.yaml#/definitions/string
+ description: Name of pattern program
+
+ pat-r:
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ description: |
+ Program data for red channel. See LP5562 datasheet for program format specification.
+
+ pat-g:
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ description: |
+ Program data for green channel. See LP5562 datasheet for program format specification.
+
+ pat-b:
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ description: |
+ Program data for blue channel. See LP5562 datasheet for program format specification.
+
required:
- compatible
- reg
@@ -223,6 +248,82 @@ examples:
};
};
};
- };
+ led-controller@30 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "ti,lp5562";
+ reg = <0x30>;
+
+ led@0 {
+ reg = <0>;
+ chan-name = "red";
+ color = <LED_COLOR_ID_RED>;
+ };
+
+ led@1 {
+ reg = <1>;
+ chan-name = "green";
+ color = <LED_COLOR_ID_GREEN>;
+ };
+
+ led@2 {
+ reg = <2>;
+ chan-name = "blue";
+ color = <LED_COLOR_ID_BLUE>;
+ };
+
+ pattern@1 {
+ /* Pulsing blue pattern
+ * Blue:
+ * 027F: Ramp up 50%
+ * 027F: Ramp up 50%
+ * 4600: Wait 100ms
+ * 02FF: Ramp down 50%
+ * 02FF: Ramp down 50%
+ * 4600: Wait 100ms
+ * 0000: Goto start
+ */
+ pat-name = "Pulsing Blue";
+ pat-b = [02 7f 02 7f 46 00 02 ff 02 ff 46 00 00 00];
+ };
+
+ pattern@2 {
+ /*
+ * HSV rainbow
+ * Red:
+ * 40FF: Set PWM 255
+ * 41FF: Ramp down 50%
+ * 41FF: Ramp down 50%
+ * 41FF: Wait 1/2 ramp time
+ * 41FF: Wait 1/2 ramp time
+ * 417F: Ramp up 50%
+ * 417F: Ramp up 50%
+ * 0000: Goto start
+ * Green:
+ * 4000: Set PWM 0
+ * 417F: Ramp up 50%
+ * 417F: Ramp up 50%
+ * 41FF: Ramp down 50%
+ * 41FF: Ramp down 50%
+ * 41FF: Wait 1/2 ramp time
+ * 41FF: Wait 1/2 ramp time
+ * 0000: Goto start
+ * Blue:
+ * 4000: Set PWM 0
+ * 41FF: Wait 1/2 ramp time
+ * 41FF: Wait 1/2 ramp time
+ * 417F: Ramp up 50%
+ * 417F: Ramp up 50%
+ * 41FF: Ramp down 50%
+ * 41FF: Ramp down 50%
+ * 0000: Goto start
+ */
+ pat-name = "HSV Rainbow";
+ pat-r = [40 ff 41 FF 41 FF 41 FF 41 FF 41 7F 41 7F 00 00];
+ pat-g = [40 00 41 7F 41 7F 41 FF 41 FF 41 FF 41 FF 00 00];
+ pat-b = [40 00 41 FF 41 FF 41 7F 41 7F 41 FF 41 FF 00 00];
+ };
+ };
+ };
...
--
2.20.1
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