From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ralph Sennhauser Subject: [PATCH v3 4/4] mvebu: wrt1900ac: Use pwm-fan rather than gpio-fan Date: Fri, 24 Mar 2017 15:18:14 +0100 Message-ID: <20170324141815.7252-5-ralph.sennhauser@gmail.com> References: <20170324141815.7252-1-ralph.sennhauser@gmail.com> Return-path: In-Reply-To: <20170324141815.7252-1-ralph.sennhauser@gmail.com> Sender: linux-gpio-owner@vger.kernel.org To: linux-gpio@vger.kernel.org Cc: Imre Kaloz , 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 List-Id: devicetree@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/ 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