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| author | Imre Kaloz <kaloz@openwrt.org> | 2015-01-25 15:36:47 +0000 |
|---|---|---|
| committer | Imre Kaloz <kaloz@openwrt.org> | 2015-01-25 15:36:47 +0000 |
| commit | 7652dc8164f3a6b1c9a100516d7a6bfd91d0d176 (patch) | |
| tree | 105df3bcd0f83db6a1aff4480cb65df532dc7415 /target/linux/mvebu/patches-3.18/206-mvebu_wrt1900ac_use_pwm-fan_rather_than_gpio-fan.patch | |
| parent | e52f6cb655d1d70b73051170231e4e190bee2765 (diff) | |
| download | master-187ad058-7652dc8164f3a6b1c9a100516d7a6bfd91d0d176.tar.gz master-187ad058-7652dc8164f3a6b1c9a100516d7a6bfd91d0d176.tar.bz2 master-187ad058-7652dc8164f3a6b1c9a100516d7a6bfd91d0d176.zip | |
mvebu: gpio based pwm support
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44129 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/mvebu/patches-3.18/206-mvebu_wrt1900ac_use_pwm-fan_rather_than_gpio-fan.patch')
| -rw-r--r-- | target/linux/mvebu/patches-3.18/206-mvebu_wrt1900ac_use_pwm-fan_rather_than_gpio-fan.patch | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-3.18/206-mvebu_wrt1900ac_use_pwm-fan_rather_than_gpio-fan.patch b/target/linux/mvebu/patches-3.18/206-mvebu_wrt1900ac_use_pwm-fan_rather_than_gpio-fan.patch new file mode 100644 index 0000000000..8af5eba5b0 --- /dev/null +++ b/target/linux/mvebu/patches-3.18/206-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 <andrew@lunn.ch> +--- + arch/arm/boot/dts/armada-xp-wrt1900ac.dts | 8 +++----- + 1 file changed, 3 insertions(+), 5 deletions(-) + +--- a/arch/arm/boot/dts/armada-xp-mamba.dts ++++ b/arch/arm/boot/dts/armada-xp-mamba.dts +@@ -302,13 +302,11 @@ + }; + }; + +- 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 { |