From patchwork Sat Mar 18 15:43:04 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ralph Sennhauser X-Patchwork-Id: 740623 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3vlmvQ3pM7z9s3l for ; Sun, 19 Mar 2017 02:53:06 +1100 (AEDT) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="IYRAsf4K"; dkim-atps=neutral Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751107AbdCRPxF (ORCPT ); Sat, 18 Mar 2017 11:53:05 -0400 Received: from mail-wr0-f195.google.com ([209.85.128.195]:35985 "EHLO mail-wr0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751164AbdCRPxC (ORCPT ); Sat, 18 Mar 2017 11:53:02 -0400 Received: by mail-wr0-f195.google.com with SMTP id l37so12856323wrc.3; Sat, 18 Mar 2017 08:52:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=UiEeP/ohTjfZJScaanot+5NLgabBuzoL/KMnn5QK4D0=; b=IYRAsf4KXxjOT1lipKlsAlZl7dUAOCCTqCTalMgFhINkevf1gbhEes70kMtw4m56t1 Qf3kHBgmN24mKgCUwfqLbTZ44kt8ZY7HoPVxyAY0Vd0UElsizqNqqrVm3keKGpMCBR6M 89lG9yO43n9gS6qo7h3TliAS0Y4pGPnWesHfPRjuVxmn4n9P9hAVNf/SCiMVtvbqvjsw Wau49SgOY0JzgDf6O1XFtgvhCDUNijFRO3+qCK83PdXkitLtta85rDkuN1QJbqRi9wKm DgGoV8r2CG+AsaUgXgppfpMZ77/MTRpIgVALDfGO+AgkBFy3O3McUJW4TCd5l8BcoOvD W/Vw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=UiEeP/ohTjfZJScaanot+5NLgabBuzoL/KMnn5QK4D0=; b=tZ9QLm8If4Bq80DXaJjMvNMAQvdO0jyfM/fxm/QKOhAQ2YyJqfQtGjOD5i6vTvSKko U3dXV7aShOlTSLEYMAZIE0E2j1IId/CN9aUxntoVSoKDbRa0Oq1BDuwGv/nkNSWdyF4g pYL9HluQAVwCmlJbFOJNJeTJcKMX47x3CqmwlVfNf/sJW1CqBDDh1q26mCAI3RVPG8NG sghlJuLDomWdIli0ZBfRG2mexpphgESyrQWaJNHgl4vKgi6uD842tMCWjOmOGmLJb29Z aBOkI+lty/Yx1ntDvCvJN7f+fv9CPZIZ1Mdkav9qOO7P1FmO5llfuqFPsw75vj1tO7Bj Jndw== X-Gm-Message-State: AFeK/H2M+QdL3McJ1+m390PPd6CwB9/iQ0lIpJsUVDVasOqAxyF4kX7izJGHYd0V9Q7yBA== X-Received: by 10.223.164.150 with SMTP id g22mr19488327wrb.92.1489851821630; Sat, 18 Mar 2017 08:43:41 -0700 (PDT) Received: from localhost.lan ([37.209.189.139]) by smtp.googlemail.com with ESMTPSA id b199sm6649709wmb.13.2017.03.18.08.43.40 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sat, 18 Mar 2017 08:43:40 -0700 (PDT) From: Ralph Sennhauser To: linux-gpio@vger.kernel.org Cc: Andrew Lunn , Imre Kaloz , Ralph Sennhauser , Jason Cooper , Gregory Clement , Sebastian Hesselbarth , Rob Herring , Mark Rutland , Russell King , Thierry Reding , Linus Walleij , Alexandre Courbot , linux-arm-kernel@lists.infradead.org (moderated list:ARM/Marvell Kirkwood and Armada 370, 375, 38x,...), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list), linux-pwm@vger.kernel.org (open list:PWM SUBSYSTEM) Subject: [PATCH v2 4/4] mvebu: wrt1900ac: Use pwm-fan rather than gpio-fan Date: Sat, 18 Mar 2017 16:43:04 +0100 Message-Id: <20170318154305.28348-5-ralph.sennhauser@gmail.com> X-Mailer: git-send-email 2.10.2 In-Reply-To: <20170318154305.28348-1-ralph.sennhauser@gmail.com> References: <20170318154305.28348-1-ralph.sennhauser@gmail.com> Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org From: Andrew Lunn The mvebu gpio driver can also perform PWM on some pins. Us the pwm-fan driver to control the fan of the WRT1900AC, giving us finer grained control over its speed and hence noise. Signed-off-by: Andrew Lunn URL: https://patchwork.ozlabs.org/patch/427291/ Signed-off-by: Ralph Sennhauser --- arch/arm/boot/dts/armada-xp-linksys-mamba.dts | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/arch/arm/boot/dts/armada-xp-linksys-mamba.dts b/arch/arm/boot/dts/armada-xp-linksys-mamba.dts index 3744ba3..836b275e 100644 --- a/arch/arm/boot/dts/armada-xp-linksys-mamba.dts +++ b/arch/arm/boot/dts/armada-xp-linksys-mamba.dts @@ -293,13 +293,11 @@ }; }; - gpio_fan { + pwm_fan { /* SUNON HA4010V4-0000-C99 */ - compatible = "gpio-fan"; - gpios = <&gpio0 24 0>; - gpio-fan,speed-map = <0 0 - 4500 1>; + compatible = "pwm-fan"; + pwms = <&gpio0 24 4000 0>; }; dsa {