linux-kernel - [PATCH] dt-bindings: pwm: pca9685: Add staggered-outputs property

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Message-Id: <20201118174515.278067-1-clemens.gruber@pqgruber.com>
Date:   Wed, 18 Nov 2020 18:45:15 +0100
From:   Clemens Gruber <clemens.gruber@...ruber.com>
To:     linux-pwm@...r.kernel.org, devicetree@...r.kernel.org
Cc:     Rob Herring <robh+dt@...nel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        u.kleine-koenig@...gutronix.de, Lee Jones <lee.jones@...aro.org>,
        linux-kernel@...r.kernel.org,
        Clemens Gruber <clemens.gruber@...ruber.com>
Subject: [PATCH] dt-bindings: pwm: pca9685: Add staggered-outputs property

The pca9685 driver supports a new staggered-outputs property for reduced
current surges and EMI. This adds documentation for the new DT property.

Signed-off-by: Clemens Gruber <clemens.gruber@...ruber.com>
---
 Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt b/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt
index f21b55c95738..911bbb65984e 100644
--- a/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt
+++ b/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt
@@ -12,6 +12,8 @@ Optional properties:
   - invert (bool): boolean to enable inverted logic
   - open-drain (bool): boolean to configure outputs with open-drain structure;
 		       if omitted use totem-pole structure
+  - staggered-outputs (bool): boolean to enable staggered output ON times to
+			      minimize current surges and EMI
 
 Example:
 
-- 
2.29.2