[PATCH V2 5/9] pwm: tegra: Add PWM based Tachometer driver

PWM Tachometer driver capture the PWM signal which is output of FAN in general and provide the period of PWM signal which is converted to RPM by SW. Add Tegra Tachometer driver which implements the pwm-capture to measure period. Signed-off-by: Rajkumar Rampelli Signed-off-by:

[PATCH V2 5/9] pwm: tegra: Add PWM based Tachometer driver

PWM Tachometer driver capture the PWM signal which is output of FAN in general and provide the period of PWM signal which is converted to RPM by SW. Add Tegra Tachometer driver which implements the pwm-capture to measure period. Signed-off-by: Rajkumar Rampelli Signed-off-by: Laxman Dewangan