[PATCH 07/10] arm64: tegra: Add PWM based Tachometer support on Tegra186

[Rajkumar Rampelli]

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 <rr...@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