From 716ca530e1c4515d8683c9d5be3d56b301758b66 Mon Sep 17 00:00:00 2001 From: James <> Date: Wed, 4 Nov 2015 11:49:21 +0000 Subject: trunk-47381 --- ...rt1900ac_use_pwm-fan_rather_than_gpio-fan.patch | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 target/linux/mvebu/patches-4.0/206-mvebu_wrt1900ac_use_pwm-fan_rather_than_gpio-fan.patch (limited to 'target/linux/mvebu/patches-4.0/206-mvebu_wrt1900ac_use_pwm-fan_rather_than_gpio-fan.patch') diff --git a/target/linux/mvebu/patches-4.0/206-mvebu_wrt1900ac_use_pwm-fan_rather_than_gpio-fan.patch b/target/linux/mvebu/patches-4.0/206-mvebu_wrt1900ac_use_pwm-fan_rather_than_gpio-fan.patch new file mode 100644 index 0000000..dddd67a --- /dev/null +++ b/target/linux/mvebu/patches-4.0/206-mvebu_wrt1900ac_use_pwm-fan_rather_than_gpio-fan.patch @@ -0,0 +1,28 @@ +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 fine +grain control over its speed and hence noise. + +Signed-off-by: Andrew Lunn +--- + arch/arm/boot/dts/armada-xp-wrt1900ac.dts | 8 +++----- + 1 file changed, 3 insertions(+), 5 deletions(-) + +--- a/arch/arm/boot/dts/armada-xp-linksys-mamba.dts ++++ b/arch/arm/boot/dts/armada-xp-linksys-mamba.dts +@@ -407,13 +407,11 @@ + }; + }; + +- 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>; + }; + + mvsw61xx { -- cgit v1.2.3