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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
@@ -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 {
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