From: Jonas Rebmann <jre@pengutronix.de>
To: Lee Jones <lee@kernel.org>, Pavel Machek <pavel@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Jacek Anaszewski <jacek.anaszewski@gmail.com>,
Sven Schwermer <sven.schwermer@disruptive-technologies.com>
Cc: Pavel Machek <pavel@ucw.cz>,
linux-leds@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, kernel@pengutronix.de,
Jonas Rebmann <jre@pengutronix.de>
Subject: [PATCH v2 0/2] leds: pwm-multicolor: Fix default-trigger by allowing default-intensity
Date: Fri, 05 Jun 2026 09:27:46 +0200 [thread overview]
Message-ID: <20260605-multicolor-default-v2-0-ed07271df6b0@pengutronix.de> (raw)
Typically using linux,default-trigger allows turning LEDs on on initialization
or triggering on e.g. a kernel panic regardless of how early.
While supported in pwm-multicolor, this was not usable because the
individual color components multiplication factor (intensity), defaulted
all to 0 (black) and the LED remains off regardless of its overall
"brightness" value.
Allow setting defaults for each component's intensity to make the other
"default-" properties actually usable here.
Update binding documentation accordingly.
Signed-off-by: Jonas Rebmann <jre@pengutronix.de>
---
Changes in v2:
- dt-bindings: Use correct property name in example
- dt-bindings: Add missing word in property description
- Link to v1: https://patch.msgid.link/20260604-multicolor-default-v1-0-b07bff431537@pengutronix.de
To: Lee Jones <lee@kernel.org>
To: Pavel Machek <pavel@kernel.org>
To: Rob Herring <robh@kernel.org>
To: Krzysztof Kozlowski <krzk+dt@kernel.org>
To: Conor Dooley <conor+dt@kernel.org>
To: Jacek Anaszewski <jacek.anaszewski@gmail.com>
To: Sven Schwermer <sven.schwermer@disruptive-technologies.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: linux-leds@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
Jonas Rebmann (2):
dt-bindings: leds: Add default-intensity property
leds: pwm-multicolor: Introduce default-intensity property
Documentation/devicetree/bindings/leds/common.yaml | 11 +++++++++++
.../devicetree/bindings/leds/leds-pwm-multicolor.yaml | 4 ++++
drivers/leds/rgb/leds-pwm-multicolor.c | 2 ++
3 files changed, 17 insertions(+)
---
base-commit: ba3e43a9e601636f5edb54e259a74f96ca3b8fd8
change-id: 20260604-multicolor-default-11e3becde05a
Best regards,
--
Jonas Rebmann <jre@pengutronix.de>
next reply other threads:[~2026-06-05 7:28 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-05 7:27 Jonas Rebmann [this message]
2026-06-05 7:27 ` [PATCH v2 1/2] dt-bindings: leds: Add default-intensity property Jonas Rebmann
2026-06-05 7:38 ` sashiko-bot
2026-06-05 8:45 ` Jonas Rebmann
2026-06-05 10:29 ` Conor Dooley
2026-06-05 10:52 ` Conor Dooley
2026-06-05 7:27 ` [PATCH v2 2/2] leds: pwm-multicolor: Introduce " Jonas Rebmann
2026-06-17 14:47 ` (subset) " Lee Jones
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