linux-kernel - [PATCH 1/2] dt-bindings: leds: register-bit-led: Add active-low property

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Message-Id: <20220818172528.23062-1-pali@kernel.org>
Date:   Thu, 18 Aug 2022 19:25:27 +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>,
        Linus Walleij <linus.walleij@...aro.org>,
        Marek Behún <kabel@...nel.org>
Cc:     linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] dt-bindings: leds: register-bit-led: Add active-low property

Allow to define inverted logic (0 - enable LED, 1 - disable LED) via
active-low property.

Signed-off-by: Pali Rohár <pali@...nel.org>
---
 Documentation/devicetree/bindings/leds/register-bit-led.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/leds/register-bit-led.yaml b/Documentation/devicetree/bindings/leds/register-bit-led.yaml
index 79b8fc0f9d23..5c6ef26f1a94 100644
--- a/Documentation/devicetree/bindings/leds/register-bit-led.yaml
+++ b/Documentation/devicetree/bindings/leds/register-bit-led.yaml
@@ -43,6 +43,11 @@ properties:
         0x100000, 0x200000, 0x400000, 0x800000, 0x1000000, 0x2000000, 0x4000000,
         0x8000000, 0x10000000, 0x20000000, 0x40000000, 0x80000000 ]
 
+  active-low:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      LED is ON when bit in register is not set
+
   offset:
     description:
       register offset to the register controlling this LED
-- 
2.20.1