tacho_div 505 drivers/hwmon/aspeed-pwm-tacho.c u8 clk_unit, div_h, div_l, tacho_div; tacho_div 518 drivers/hwmon/aspeed-pwm-tacho.c tacho_div = priv->type_fan_tach_clock_division[type]; tacho_div 520 drivers/hwmon/aspeed-pwm-tacho.c tacho_div = 0x4 << (tacho_div * 2); tacho_div 521 drivers/hwmon/aspeed-pwm-tacho.c return clk / (clk_unit * div_h * div_l * tacho_div * tacho_unit);