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    Subject[PATCH 07/10] arm64: tegra: Add PWM based Tachometer support on Tegra186
    Date
    Add PWM based Tachometer support on Tegra186 to measure
    number of rotations of a Fan per minute by using PWM
    capture interface

    Signed-off-by: Rajkumar Rampelli <rrajk@nvidia.com>
    ---
    arch/arm64/boot/dts/nvidia/tegra186.dtsi | 6 ++++++
    1 file changed, 6 insertions(+)

    diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
    index 8f2d598..37149e9 100644
    --- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
    +++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
    @@ -1042,4 +1042,10 @@
    reset-names = "tachometer";
    status = "disabled";
    };
    +
    + generic_pwm_tachometer {
    + compatible = "generic-pwm-tachometer";
    + pwms = <&tegra_tachometer 0 1000000>;
    + status = "disabled";
    + };
    };
    --
    2.1.4
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