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Message-Id: <20220705155929.25565-1-pali@kernel.org>
Date: Tue, 5 Jul 2022 17:59:28 +0200
From: Pali Rohár <pali@...nel.org>
To: Pavel Machek <pavel@....cz>, Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Marek Behún <kabel@...nel.org>
Cc: linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/2] [RFT] dt-bindings: leds: Add cznic,turris1x-leds.yaml binding
Add device-tree bindings documentation for Turris 1.x RGB LEDs.
Signed-off-by: Pali Rohár <pali@...nel.org>
---
Changes in v2:
* Fix schema errors
---
.../bindings/leds/cznic,turris1x-leds.yaml | 118 ++++++++++++++++++
1 file changed, 118 insertions(+)
create mode 100644 Documentation/devicetree/bindings/leds/cznic,turris1x-leds.yaml
diff --git a/Documentation/devicetree/bindings/leds/cznic,turris1x-leds.yaml b/Documentation/devicetree/bindings/leds/cznic,turris1x-leds.yaml
new file mode 100644
index 000000000000..bcaab5b03128
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/cznic,turris1x-leds.yaml
@@ -0,0 +1,118 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/cznic,turris1x-leds.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: CZ.NIC's Turris 1.x LEDs driver
+
+maintainers:
+ - Pali Rohár <pali@...nel.org>
+
+description:
+ This module adds support for the RGB LEDs found on the front panel of the
+ Turris 1.x routers. There are 8 RGB LEDs that are controlled by CZ.NIC CPLD
+ firmware running on Lattice FPGA. Firmware is open source and available at
+ https://gitlab.nic.cz/turris/hw/turris_cpld/-/blob/master/CZ_NIC_Router_CPLD.v
+
+properties:
+ compatible:
+ const: cznic,turris1x-leds
+
+ reg:
+ description: CPLD address range where LED registers are mapped
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+patternProperties:
+ "^multi-led@[0-7]$":
+ type: object
+ $ref: leds-class-multicolor.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ reg:
+ minimum: 0
+ maximum: 7
+
+ required:
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/leds/common.h>
+
+ cpld@3,0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x3 0x0 0x00020000>;
+
+ led-controller@13 {
+ compatible = "cznic,turris1x-leds";
+ reg = <0x13 0x1d>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ multi-led@0 {
+ reg = <0x0>;
+ color = <LED_COLOR_ID_RGB>;
+ function = LED_FUNCTION_WAN;
+ };
+
+ multi-led@1 {
+ reg = <0x1>;
+ color = <LED_COLOR_ID_RGB>;
+ function = LED_FUNCTION_LAN;
+ function-enumerator = <5>;
+ };
+
+ multi-led@2 {
+ reg = <0x2>;
+ color = <LED_COLOR_ID_RGB>;
+ function = LED_FUNCTION_LAN;
+ function-enumerator = <4>;
+ };
+
+ multi-led@3 {
+ reg = <0x3>;
+ color = <LED_COLOR_ID_RGB>;
+ function = LED_FUNCTION_LAN;
+ function-enumerator = <3>;
+ };
+
+ multi-led@4 {
+ reg = <0x4>;
+ color = <LED_COLOR_ID_RGB>;
+ function = LED_FUNCTION_LAN;
+ function-enumerator = <2>;
+ };
+
+ multi-led@5 {
+ reg = <0x5>;
+ color = <LED_COLOR_ID_RGB>;
+ function = LED_FUNCTION_LAN;
+ function-enumerator = <1>;
+ };
+
+ multi-led@6 {
+ reg = <0x6>;
+ color = <LED_COLOR_ID_RGB>;
+ function = LED_FUNCTION_WLAN;
+ };
+
+ multi-led@7 {
+ reg = <0x7>;
+ color = <LED_COLOR_ID_RGB>;
+ function = LED_FUNCTION_POWER;
+ };
+ };
+ };
+
+...
--
2.20.1
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