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authorFelix Fietkau <nbd@nbd.name>2017-02-06 11:46:48 +0100
committerFelix Fietkau <nbd@nbd.name>2017-02-16 17:17:15 +0100
commit2bf9ea6a31736db059aa97addce3a34b933dacc1 (patch)
treeecfe628aabaf38e6bd40ca841443d19079105a83 /target/linux/mvebu/patches-4.9/204-mvebu_wrt1900ac_use_pwm-fan_rather_than_gpio-fan.patch
parent237454991618e0e8b7ceb8a8a2a43fca12c1a454 (diff)
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mvebu: add linux 4.9 support
Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Diffstat (limited to 'target/linux/mvebu/patches-4.9/204-mvebu_wrt1900ac_use_pwm-fan_rather_than_gpio-fan.patch')
-rw-r--r--target/linux/mvebu/patches-4.9/204-mvebu_wrt1900ac_use_pwm-fan_rather_than_gpio-fan.patch28
1 files changed, 28 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-4.9/204-mvebu_wrt1900ac_use_pwm-fan_rather_than_gpio-fan.patch b/target/linux/mvebu/patches-4.9/204-mvebu_wrt1900ac_use_pwm-fan_rather_than_gpio-fan.patch
new file mode 100644
index 0000000000..b46697b727
--- /dev/null
+++ b/target/linux/mvebu/patches-4.9/204-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-linksys-mamba.dts
++++ b/arch/arm/boot/dts/armada-xp-linksys-mamba.dts
+@@ -416,13 +416,11 @@
+ };
+ };
+
+- 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@0 {