From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ralph Sennhauser 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> References: <20170316064218.9169-1-ralph.sennhauser@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20170316064218.9169-1-ralph.sennhauser@gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: linux-gpio@vger.kernel.org Cc: Mark Rutland , Andrew Lunn , Jason Cooper , Alexandre Courbot , Linus Walleij , Russell King , "open list:PWM SUBSYSTEM" , open list , Gregory Clement , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Rob Herring , Thierry Reding , Ralph Sennhauser , Imre Kaloz , "moderated list:ARM/Marvell Kirkwood and Armada 370, 375, 38x, ..." , Sebastian Hesselbarth List-Id: devicetree@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 { -- 2.10.2