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From: Nishanth Menon <nm@ti.com>
To: "Tony Lindgren" <tony@atomide.com>,
	"Benoît Cousson" <bcousson@baylibre.com>
Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
	linux-omap@vger.kernel.org, sre@kernel.org,
	Nishanth Menon <nm@ti.com>
Subject: [PATCH V4] ARM: dts: am57xx-beagle-x15: Add GPIO controlled fan node
Date: Mon, 5 Jan 2015 10:32:29 -0600	[thread overview]
Message-ID: <1420475549-28492-1-git-send-email-nm@ti.com> (raw)

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 <nm@ti.com>
---
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


WARNING: multiple messages have this Message-ID (diff)
From: nm@ti.com (Nishanth Menon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH V4] ARM: dts: am57xx-beagle-x15: Add GPIO controlled fan node
Date: Mon, 5 Jan 2015 10:32:29 -0600	[thread overview]
Message-ID: <1420475549-28492-1-git-send-email-nm@ti.com> (raw)

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 <nm@ti.com>
---
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 at 48 {
-- 
1.7.9.5

             reply	other threads:[~2015-01-05 16:32 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-05 16:32 Nishanth Menon [this message]
2015-01-05 16:32 ` [PATCH V4] ARM: dts: am57xx-beagle-x15: Add GPIO controlled fan node Nishanth Menon
2015-01-05 17:27 ` Felipe Balbi
2015-01-05 17:27   ` Felipe Balbi
2015-01-08  0:20   ` Tony Lindgren
2015-01-08  0:20     ` Tony Lindgren
2015-01-05 17:27 ` Felipe Balbi
2015-01-05 17:27   ` Felipe Balbi
2015-01-05 17:33   ` Nishanth Menon
2015-01-05 17:33     ` Nishanth Menon
2015-01-05 17:45     ` Felipe Balbi
2015-01-05 17:45       ` Felipe Balbi

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