Add a YAML schema binding for TM1628 LED controller.
Cc: zypeng@xxxxxxxxxxxx
Signed-off-by: Andreas Färber <afaerber@xxxxxxx>
---
@Rob: How could we express constraints on two-cell reg value ranges here?
Should we also model constraints on reg range by #grids property?
.../devicetree/bindings/leds/titanmec,tm1628.yaml | 80 ++++++++++++++++++++++
1 file changed, 80 insertions(+)
create mode 100644 Documentation/devicetree/bindings/leds/titanmec,tm1628.yaml
diff --git a/Documentation/devicetree/bindings/leds/titanmec,tm1628.yaml b/Documentation/devicetree/bindings/leds/titanmec,tm1628.yaml
new file mode 100644
index 000000000000..024875656e79
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/titanmec,tm1628.yaml
@@ -0,0 +1,80 @@
+# 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
+
+maintainers:
+ - Andreas Färber <afaerber@xxxxxxx>
+
+properties:
+ compatible:
+ enum:
+ - titanmec,tm1628
+
+ reg:
+ maxItems: 1
+
+ "#grids":
+ description: |
+ Number of GRID output lines to use.
+ This limits the number of available SEG output lines.
+ minimum: 4
+ maximum: 7
+
+ "#address-cells":
+ const: 2
+
+ "#size-cells":
+ const: 0
+
+required:
+ - compatible
+ - reg
+
+patternProperties:
+ "^.*@[1-7],([1-9]|1[02-4])$":
+ type: object
+ description: |
+ Properties for a single LED.
+
+ properties:
+ reg:
+ description: |
+ 1-based grid number, followed by 1-based segment number.
+ maxItems: 1
+
+ linux,default-trigger: true
+
+ 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>;
+ #grids = <7>;
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ colon@5,4 {
+ reg = <5 4>;
+ color = <LED_COLOR_ID_WHITE>;
+ function = LED_FUNCTION_INDICATOR;
+ linux,default-trigger = "heartbeat";
+ };
+ };
+ };
+...
--
2.16.4
