| Message ID | 1519196339-9377-7-git-send-email-rrajk@nvidia.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
diff --git a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts index bd5305a..13c3e59 100644 --- a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts +++ b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts @@ -172,4 +172,9 @@ vin-supply = <&vdd_5v0_sys>; }; }; + + tachometer@39c0000 { + nvidia,pulse-per-rev = <2>; + nvidia,capture-window-len = <2>; + }; }; diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi index b762227..8f2d598 100644 --- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi @@ -1031,4 +1031,15 @@ (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>; interrupt-parent = <&gic>; }; + + tegra_tachometer: tachometer@39c0000 { + compatible = "nvidia,tegra186-pwm-tachometer"; + reg = <0x0 0x039c0000 0x0 0x10>; + #pwm-cells = <2>; + clocks = <&bpmp TEGRA186_CLK_TACH>; + clock-names = "tachometer"; + resets = <&bpmp TEGRA186_RESET_TACH>; + reset-names = "tachometer"; + status = "disabled"; + }; };
The NVIDIA Tegra186 SoC has a Tachometer Controller that analyzes the PWM signal of a Fan and reports the period value through pwm interface. Signed-off-by: Rajkumar Rampelli <rrajk@nvidia.com> --- arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts | 5 +++++ arch/arm64/boot/dts/nvidia/tegra186.dtsi | 11 +++++++++++ 2 files changed, 16 insertions(+)