From patchwork Thu Mar 16 06:42:18 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ralph Sennhauser X-Patchwork-Id: 739590 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 3vkJqX2PPwz9s03 for ; Thu, 16 Mar 2017 17:44:40 +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="EA2N/xuT"; dkim-atps=neutral Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751386AbdCPGoO (ORCPT ); Thu, 16 Mar 2017 02:44:14 -0400 Received: from mail-wm0-f68.google.com ([74.125.82.68]:34627 "EHLO mail-wm0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751130AbdCPGnT (ORCPT ); Thu, 16 Mar 2017 02:43:19 -0400 Received: by mail-wm0-f68.google.com with SMTP id u132so7980855wmg.1; Wed, 15 Mar 2017 23:43:07 -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=EA2N/xuTkU64kcETFZXp7vMwRp9JH3qGwKxK7k+m7Nui3bEhzjmifPMAMcOsEC2OrD q9wdV+YirDk0sf5dONK3CPtB55QCpdHeydpNfCp6lPh+/tcXqkiZ1xZ7qabxhjMEEGBB T9n3JGd7ghoGi+v3oRivpLxALJwLiadAcwpihW1avV17Sekbsro0y0QjI3pZ42OJFybT DRIWLyhmi2QZ5ovD+HaNxtJWZ56opOc8rJm27QSql0gaa6afIqxJJHDwmQBqRt+byd4K DwV/hyXe13hfvRVGREzAjAA+BBKuVxhfUWiymLsgR6CUBpfsWItEOS/xAAXOgGmWTbFt S2+A== 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=T3uKpakwfQXBPxANlCPfOxNxapQzMQVg8JbykaNi2N1rTqy7fFsLpo6coDVro/HmoG k9cYHq0PBp8iEg7TkWPb0lmc8Ze94m09P5GeWWNHJCx+nTlsgGYvkfWTvxufYAEkZQXW h+L6ZMrbpPovgX6vascfG5FxljVbbHlCe1ccyQX0U6FyaVF0HxhiWswQFvwFfBcgLTZM b7xOlKVuNffO84nOtxBXEspiN9qHG1g35tYvaAB9xX4Ab1IrXkGLEKG+2ygWUvdO0Lpw sPpah9oCZXs3yiqtF/81I2NCL8gJgKWDOrSWb+MlkubwakxR51dZOfhQ1gTieciPmZFc hNVA== X-Gm-Message-State: AFeK/H2iP/gCHw4yQYJWH0VZoW2avctzPkgr6XSiKvMCJQ8aAyOkLmQgBfHKhJIhdyZePA== X-Received: by 10.28.60.66 with SMTP id j63mr7669189wma.74.1489646586790; Wed, 15 Mar 2017 23:43:06 -0700 (PDT) Received: from localhost.lan ([37.209.189.139]) by smtp.googlemail.com with ESMTPSA id o63sm3039825wmo.30.2017.03.15.23.43.05 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 15 Mar 2017 23:43:05 -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 4/4] mvebu: wrt1900ac: Use pwm-fan rather than gpio-fan Date: Thu, 16 Mar 2017 07:42:18 +0100 Message-Id: <20170316064218.9169-5-ralph.sennhauser@gmail.com> X-Mailer: git-send-email 2.10.2 In-Reply-To: <20170316064218.9169-1-ralph.sennhauser@gmail.com> References: <20170316064218.9169-1-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 {