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| | From 1bc9224b52be0df338c4e63e122460df0f651d96 Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Sun, 20 Feb 2022 08:24:47 +0000
Subject: [PATCH 18/73] FROMLIST(v5): dt-bindings: auxdisplay: Add Titan Micro
Electronics TM1628
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Add a YAML schema binding for TM1628 auxdisplay
(7/11-segment LED) controller.
This patch is partially based on previous RFC work from
Andreas Färber <afaerber@suse.de>.
Co-developed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
.../bindings/auxdisplay/titanmec,tm1628.yaml | 82 +++++++++++++++++++
1 file changed, 82 insertions(+)
create mode 100644 Documentation/devicetree/bindings/auxdisplay/titanmec,tm1628.yaml
diff --git a/Documentation/devicetree/bindings/auxdisplay/titanmec,tm1628.yaml b/Documentation/devicetree/bindings/auxdisplay/titanmec,tm1628.yaml
new file mode 100644
index 000000000000..d9cbbc950aab
--- /dev/null
+++ b/Documentation/devicetree/bindings/auxdisplay/titanmec,tm1628.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/titanmec,tm1628.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Titan Micro Electronics TM1628 LED controller
+
+properties:
+ compatible:
+ enum:
+ - titanmec,tm1628
+
+ reg:
+ maxItems: 1
+
+ grid:
+ description:
+ Mapping of display digit position to grid number.
+ This implicitly defines the display size.
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ minItems: 1
+ maxItems: 7
+
+ segment-mapping:
+ description:
+ Mapping of 7 segment display segments A-G to bit numbers 1-12.
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ minItems: 7
+ maxItems: 7
+
+ "#address-cells":
+ const: 2
+
+ "#size-cells":
+ const: 0
+
+required:
+ - compatible
+ - reg
+
+patternProperties:
+ "^.*@[1-7],([1-9]|1[0-6])$":
+ type: object
+ description: |
+ Properties for a single LED.
+
+ properties:
+ reg:
+ description: |
+ 1-based grid number, followed by 1-based segment bit number.
+ maxItems: 1
+
+ required:
+ - reg
+
+examples:
+ - |
+ #include <dt-bindings/leds/common.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led-controller@0 {
+ compatible = "titanmec,tm1628";
+ reg = <0>;
+ spi-3-wire;
+ spi-lsb-first;
+ spi-max-frequency = <500000>;
+ grid = /bits/ 8 <4 3 2 1>;
+ segment-mapping = /bits/ 8 <4 5 6 1 2 3 7>;
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ alarmn@5,4 {
+ reg = <5 4>;
+ function = LED_FUNCTION_ALARM;
+ };
+ };
+ };
+...
--
2.17.1
|