From patchwork Mon Dec 7 19:38:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Clemens Gruber X-Patchwork-Id: 1412188 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-pwm-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=pqgruber.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=pqgruber.com header.i=@pqgruber.com header.a=rsa-sha256 header.s=mail header.b=Qcqki5qC; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4CqYXs3H4tz9sTX for ; Tue, 8 Dec 2020 06:39:25 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725915AbgLGTjJ (ORCPT ); Mon, 7 Dec 2020 14:39:09 -0500 Received: from mail.pqgruber.com ([52.59.78.55]:35246 "EHLO mail.pqgruber.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725853AbgLGTjJ (ORCPT ); Mon, 7 Dec 2020 14:39:09 -0500 Received: from workstation.tuxnet (213-47-165-233.cable.dynamic.surfer.at [213.47.165.233]) by mail.pqgruber.com (Postfix) with ESMTPSA id 15614C89267; Mon, 7 Dec 2020 20:38:27 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=pqgruber.com; s=mail; t=1607369907; bh=Xyh8Wni+Ue0ny3rZRboSXRdZfKHzl+fSzSIiwkbye9I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Qcqki5qCyt/3MvhYyz2CoN0t4Sxs6mIMbI1swceOl7TACVxFV+udkmffJrjLck0wj szTX29sumpitTmRvjMXD2bbvcMz9pTiICpeK2Wg+25brVaB0eix34sN5zTyhnCPprH qvwkG7EzCd7bKv2GuUt0yv2jvoHSj+NO7a727JHU= From: Clemens Gruber To: linux-pwm@vger.kernel.org Cc: Thierry Reding , u.kleine-koenig@pengutronix.de, Lee Jones , linux-kernel@vger.kernel.org, Clemens Gruber Subject: [PATCH v4 4/4] dt-bindings: pwm: pca9685: Add nxp,staggered-outputs property Date: Mon, 7 Dec 2020 20:38:10 +0100 Message-Id: <20201207193810.493299-1-clemens.gruber@pqgruber.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201207193629.493241-1-clemens.gruber@pqgruber.com> References: <20201207193629.493241-1-clemens.gruber@pqgruber.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pwm@vger.kernel.org The pca9685 driver supports a new nxp,staggered-outputs property for reduced current surges and EMI. This adds documentation for the new DT property. Signed-off-by: Clemens Gruber --- Changes since v1: - Added vendor prefix 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..fafe954369dc 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 + - nxp,staggered-outputs (bool): boolean to enable staggered output ON times to + minimize current surges and EMI Example: