clock_unit 95 drivers/pwm/pwm-imx-tpm.c u32 rate, prescale, period_count, clock_unit; clock_unit 100 drivers/pwm/pwm-imx-tpm.c clock_unit = DIV_ROUND_CLOSEST_ULL(tmp, NSEC_PER_SEC); clock_unit 101 drivers/pwm/pwm-imx-tpm.c if (clock_unit <= PWM_IMX_TPM_MOD_MOD) clock_unit 104 drivers/pwm/pwm-imx-tpm.c prescale = ilog2(clock_unit) + 1 - PWM_IMX_TPM_MOD_WIDTH; clock_unit 110 drivers/pwm/pwm-imx-tpm.c period_count = (clock_unit + ((1 << prescale) >> 1)) >> prescale;