From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nishanth Menon Subject: [PATCH V4] ARM: dts: am57xx-beagle-x15: Add GPIO controlled fan node Date: Mon, 5 Jan 2015 10:32:29 -0600 Message-ID: <1420475549-28492-1-git-send-email-nm@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Sender: linux-omap-owner@vger.kernel.org To: Tony Lindgren , =?UTF-8?q?Beno=C3=AEt=20Cousson?= Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-omap@vger.kernel.org, sre@kernel.org, Nishanth Menon List-Id: devicetree@vger.kernel.org TPS gpio now controls a 5v 500mA TL5209 regulator which may be supply a fan (such as AFB02505HHB) over J1 connector for various purposes. Provide device tree node to enable the same. Signed-off-by: Nishanth Menon --- V4: Change format of the speed-map used. V3: https://patchwork.kernel.org/patch/5562121/ V2: https://patchwork.kernel.org/patch/5445111/ V1: https://patchwork.kernel.org/patch/5444911/ Enable and disable can be controlled by (post the RPM, it finds closest match - even a 1 will do) echo '13000' > /sys/class/hwmon/hwmon0/fan1_target and echo '0' > /sys/class/hwmon/hwmon0/fan1_target Test log: http://slexy.org/view/s2T0ajh46z requires CONFIG_GPIO_PALMAS and CONFIG_SENSORS_GPIO_FAN to be operational Applies on v3.19-rc1 arch/arm/boot/dts/am57xx-beagle-x15.dts | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts index 6c2e8e4..c5d4cea 100644 --- a/arch/arm/boot/dts/am57xx-beagle-x15.dts +++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts @@ -80,6 +80,14 @@ default-state = "off"; }; }; + + gpio_fan: gpio_fan { + /* Based on 5v 500mA AFB02505HHB */ + compatible = "gpio-fan"; + gpios = <&tps659038_gpio 1 GPIO_ACTIVE_HIGH>; + gpio-fan,speed-map = <0 0>, + <13000 1>; + }; }; &dra7_pmx_core { @@ -394,6 +402,12 @@ wakeup-source; ti,palmas-long-press-seconds = <12>; }; + + tps659038_gpio: tps659038_gpio { + compatible = "ti,palmas-gpio"; + gpio-controller; + #gpio-cells = <2>; + }; }; tmp102: tmp102@48 { -- 1.7.9.5