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 <[email protected]> --- arch/arm/boot/dts/armada-xp-wrt1900ac.dts | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/arch/arm/boot/dts/armada-xp-wrt1900ac.dts b/arch/arm/boot/dts/armada-xp-wrt1900ac.dts index d53643ca2c0d..14a4d7cd4ff2 100644 --- a/arch/arm/boot/dts/armada-xp-wrt1900ac.dts +++ b/arch/arm/boot/dts/armada-xp-wrt1900ac.dts @@ -276,12 +276,10 @@ }; }; - 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 { -- 2.1.3 -- To unsubscribe from this list: send the line "unsubscribe linux-pwm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
