target/linux/mvebu/patches-4.4/206-mvebu_wrt1900ac_use_pwm-fan_rather_than_gpio-fan.patch

   1 The mvebu gpio driver can also perform PWM on some pins. Us the
   2 pwm-fan driver to control the fan of the WRT1900AC, giving us fine
   3 grain control over its speed and hence noise.
   4
   5 Signed-off-by: Andrew Lunn <andrew@lunn.ch>
   6 ---
   7  arch/arm/boot/dts/armada-xp-wrt1900ac.dts | 8 +++-----
   8  1 file changed, 3 insertions(+), 5 deletions(-)
   9
  10 --- a/arch/arm/boot/dts/armada-xp-linksys-mamba.dts
  11 +++ b/arch/arm/boot/dts/armada-xp-linksys-mamba.dts
  12 @@ -428,13 +428,11 @@
  13                 };
  14         };
  15
  16 -       gpio_fan {
  17 +       pwm_fan {
  18                 /* SUNON HA4010V4-0000-C99 */
  19 -               compatible = "gpio-fan";
  20 -               gpios = <&gpio0 24 0>;
  21
  22 -               gpio-fan,speed-map = <0    0
  23 -                                     4500 1>;
  24 +               compatible = "pwm-fan";
  25 +               pwms = <&gpio0 24 4000 0>;
  26         };
  27
  28         dsa@0 {