From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C4CCBC43441 for ; Wed, 21 Nov 2018 11:25:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 92E7B2146F for ; Wed, 21 Nov 2018 11:25:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 92E7B2146F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730250AbeKUV7e (ORCPT ); Wed, 21 Nov 2018 16:59:34 -0500 Received: from mail.bootlin.com ([62.4.15.54]:45082 "EHLO mail.bootlin.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727874AbeKUV7e (ORCPT ); Wed, 21 Nov 2018 16:59:34 -0500 Received: by mail.bootlin.com (Postfix, from userid 110) id 654B0207AB; Wed, 21 Nov 2018 12:25:31 +0100 (CET) Received: from localhost (242.171.71.37.rev.sfr.net [37.71.171.242]) by mail.bootlin.com (Postfix) with ESMTPSA id 31F3220736; Wed, 21 Nov 2018 12:25:21 +0100 (CET) Date: Wed, 21 Nov 2018 12:25:21 +0100 From: Alexandre Belloni To: Peter Rosin Cc: "linux-kernel@vger.kernel.org" , Nicolas Ferre , Rob Herring , Mark Rutland , "linux-arm-kernel@lists.infradead.org" , "devicetree@vger.kernel.org" Subject: Re: [PATCH] ARM: dts: at91: nattis: initialize the BLON pin as output-low early Message-ID: <20181121112521.GL8367@piout.net> References: <20181120212036.22497-1-peda@axentia.se> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181120212036.22497-1-peda@axentia.se> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 20/11/2018 21:20:43+0000, Peter Rosin wrote: > The pwm-backlight driver initializes BLON (the enable gpio) to > output-high if the gpio is input on probe. Initializing the gpio > to output-low before the driver probes prevents this action by > the pwm-backlight driver and gets rid of a nasty blink of full > backlight with an uninitialized panel. > > Signed-off-by: Peter Rosin > --- > arch/arm/boot/dts/at91-nattis-2-natte-2.dts | 8 ++++++++ > 1 file changed, 8 insertions(+) > Applied, thanks. -- Alexandre Belloni, Bootlin Embedded Linux and Kernel engineering https://bootlin.com