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115 lines
2.9 KiB
Diff
115 lines
2.9 KiB
Diff
From 24712c83de1ef21e7263f7c3bbe4423068070089 Mon Sep 17 00:00:00 2001
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From: Heiner Kallweit <hkallweit1@gmail.com>
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Date: Sun, 20 Feb 2022 08:24:47 +0000
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Subject: [PATCH 14/53] FROMLIST(v5): dt-bindings: auxdisplay: Add Titan Micro
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Electronics TM1628
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Add a YAML schema binding for TM1628 auxdisplay
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(7/11-segment LED) controller.
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This patch is partially based on previous RFC work from
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Andreas Färber <afaerber@suse.de>.
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Co-developed-by: Andreas Färber <afaerber@suse.de>
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Signed-off-by: Andreas Färber <afaerber@suse.de>
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Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
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---
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.../bindings/auxdisplay/titanmec,tm1628.yaml | 82 +++++++++++++++++++
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1 file changed, 82 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/auxdisplay/titanmec,tm1628.yaml
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diff --git a/Documentation/devicetree/bindings/auxdisplay/titanmec,tm1628.yaml b/Documentation/devicetree/bindings/auxdisplay/titanmec,tm1628.yaml
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new file mode 100644
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index 000000000000..d9cbbc950aab
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/auxdisplay/titanmec,tm1628.yaml
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@@ -0,0 +1,82 @@
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+# SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
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+%YAML 1.2
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+---
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+$id: http://devicetree.org/schemas/leds/titanmec,tm1628.yaml#
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+$schema: http://devicetree.org/meta-schemas/core.yaml#
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+
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+title: Titan Micro Electronics TM1628 LED controller
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+
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+properties:
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+ compatible:
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+ enum:
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+ - titanmec,tm1628
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+
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+ reg:
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+ maxItems: 1
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+
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+ grid:
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+ description:
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+ Mapping of display digit position to grid number.
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+ This implicitly defines the display size.
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+ $ref: /schemas/types.yaml#/definitions/uint8-array
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+ minItems: 1
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+ maxItems: 7
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+
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+ segment-mapping:
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+ description:
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+ Mapping of 7 segment display segments A-G to bit numbers 1-12.
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+ $ref: /schemas/types.yaml#/definitions/uint8-array
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+ minItems: 7
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+ maxItems: 7
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+
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+ "#address-cells":
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+ const: 2
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+
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+ "#size-cells":
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+ const: 0
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+
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+required:
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+ - compatible
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+ - reg
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+
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+patternProperties:
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+ "^.*@[1-7],([1-9]|1[0-6])$":
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+ type: object
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+ description: |
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+ Properties for a single LED.
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+
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+ properties:
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+ reg:
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+ description: |
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+ 1-based grid number, followed by 1-based segment bit number.
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+ maxItems: 1
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+
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+ required:
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+ - reg
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+
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+examples:
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+ - |
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+ #include <dt-bindings/leds/common.h>
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+
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+ spi {
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+
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+ led-controller@0 {
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+ compatible = "titanmec,tm1628";
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+ reg = <0>;
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+ spi-3-wire;
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+ spi-lsb-first;
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+ spi-max-frequency = <500000>;
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+ grid = /bits/ 8 <4 3 2 1>;
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+ segment-mapping = /bits/ 8 <4 5 6 1 2 3 7>;
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+ #address-cells = <2>;
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+ #size-cells = <0>;
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+
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+ alarmn@5,4 {
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+ reg = <5 4>;
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+ function = LED_FUNCTION_ALARM;
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+ };
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+ };
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+ };
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+...
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--
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2.34.1
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