From patchwork Fri Apr 14 15:40:55 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ralph Sennhauser X-Patchwork-Id: 750872 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 3w4MMx47qTz9s8C for ; Sat, 15 Apr 2017 01:41:49 +1000 (AEST) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="jPZCnMoX"; dkim-atps=neutral Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754375AbdDNPlT (ORCPT ); Fri, 14 Apr 2017 11:41:19 -0400 Received: from mail-wm0-f65.google.com ([74.125.82.65]:34048 "EHLO mail-wm0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754264AbdDNPlQ (ORCPT ); Fri, 14 Apr 2017 11:41:16 -0400 Received: by mail-wm0-f65.google.com with SMTP id x75so18337386wma.1; Fri, 14 Apr 2017 08:41:15 -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=/ZyTP0sa5RYWTLUlOugkTUOGDC2Z+0teY9PwFP5aJDY=; b=jPZCnMoXvHQ69ihLN0E0umCz4sn9x1vIJ8EBMsc2d3XCtoSQ9sLgb3NXtiLqe0kHAC soX2sWvjGiNHGV99DensQM0AISpfXP8PcVmfK6IOQRQEw0wvo6YnA1j//ZnAjMywaHoH 3X/PKQclB9MQ94uE2BOLLoAeHmPls3kUKa/X/rbD5GdT2/QMKDRk31SK6N6krSq7NmW9 j5HPdbZqc6pK7k65CvT/tUyfWnwXwTeM8n1XP7CiENY4vgJT4tZk/cNk+QLdxeihhg7t ugaBeKCe2pGwq5gmUSssov589Qqni4jSzcZ2+xpmtv+VhLnvuRJ4wGY8SvxoD1arC0qx a5Vg== 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=/ZyTP0sa5RYWTLUlOugkTUOGDC2Z+0teY9PwFP5aJDY=; b=bElZCLAcyAJMObhgl4Mbfni5C5CtXe1lCEe0gSt6un+yWZ6Q7SIQyg2xKuk5fWP0PM tcPGHFMb8v6zIxVaamE9oLqHWCsUkOY/mEq5goQ2nt4k7O9CKqPl+Klq/tq6SpO9QGiw 0j9GN9LJTcU10roGXIBClgRYylJKKNFPAdX14F+UAXubMmJflug6qcxg5A9ZEDXHSGRU Jats80abcSaG0dRUUpPKpuf6UT3SkhMTzSWrA1/JcvrpIQGKIwE4tqm/f00A3Oo5H4O0 HGh3oDVnnX5duIQ8G06mJ8YE7z91EXkXBwsgYuHLF0dEJHaTYuoyC4+bg2AAMO5XhS4I YuFg== X-Gm-Message-State: AN3rC/77qP0JBWJdcy/xK27nns4xtKq2LBQcKISVySKNILBoMs5XTPl/ 402hsce7WI6ZRA== X-Received: by 10.28.13.71 with SMTP id 68mr7237054wmn.124.1492184474537; Fri, 14 Apr 2017 08:41:14 -0700 (PDT) Received: from localhost.lan ([37.209.189.139]) by smtp.googlemail.com with ESMTPSA id c16sm2769803wrb.56.2017.04.14.08.41.13 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 14 Apr 2017 08:41:13 -0700 (PDT) From: Ralph Sennhauser To: linux-gpio@vger.kernel.org Cc: Andrew Lunn , Ralph Sennhauser , Thierry Reding , Linus Walleij , Alexandre Courbot , Rob Herring , Mark Rutland , Jason Cooper , Gregory Clement , Sebastian Hesselbarth , Russell King , linux-pwm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v6 4/4] ARM: dts: armada-xp: Use pwm-fan rather than gpio-fan Date: Fri, 14 Apr 2017 17:40:55 +0200 Message-Id: <20170414154056.32055-5-ralph.sennhauser@gmail.com> X-Mailer: git-send-email 2.10.2 In-Reply-To: <20170414154056.32055-1-ralph.sennhauser@gmail.com> References: <20170414154056.32055-1-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. Use 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/ [Ralph Sennhauser: drop flags paramter from pwms, no longer used] Signed-off-by: Ralph Sennhauser Tested-by: Andrew Lunn Acked-by: Linus Walleij --- 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 9efcf59..6d705f5 100644 --- a/arch/arm/boot/dts/armada-xp-linksys-mamba.dts +++ b/arch/arm/boot/dts/armada-xp-linksys-mamba.dts @@ -308,13 +308,11 @@ }; }; - 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>; }; dsa {