diff options
Diffstat (limited to 'sound/pci/es1968.c')
| -rw-r--r-- | sound/pci/es1968.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c index a9956a7c567..6039700f857 100644 --- a/sound/pci/es1968.c +++ b/sound/pci/es1968.c @@ -1710,7 +1710,8 @@ static void es1968_measure_clock(struct es1968 *chip) int i, apu; unsigned int pa, offset, t; struct esm_memory *memory; - struct timeval start_time, stop_time; + ktime_t start_time, stop_time; + ktime_t diff; if (chip->clock == 0) chip->clock = 48000; /* default clock value */ @@ -1761,12 +1762,12 @@ static void es1968_measure_clock(struct es1968 *chip) snd_es1968_bob_inc(chip, ESM_BOB_FREQ); __apu_set_register(chip, apu, 5, pa & 0xffff); snd_es1968_trigger_apu(chip, apu, ESM_APU_16BITLINEAR); - do_gettimeofday(&start_time); + start_time = ktime_get(); spin_unlock_irq(&chip->reg_lock); msleep(50); spin_lock_irq(&chip->reg_lock); offset = __apu_get_register(chip, apu, 5); - do_gettimeofday(&stop_time); + stop_time = ktime_get(); snd_es1968_trigger_apu(chip, apu, 0); /* stop */ snd_es1968_bob_dec(chip); chip->in_measurement = 0; @@ -1777,12 +1778,8 @@ static void es1968_measure_clock(struct es1968 *chip) offset &= 0xfffe; offset += chip->measure_count * (CLOCK_MEASURE_BUFSIZE/2); - t = stop_time.tv_sec - start_time.tv_sec; - t *= 1000000; - if (stop_time.tv_usec < start_time.tv_usec) - t -= start_time.tv_usec - stop_time.tv_usec; - else - t += stop_time.tv_usec - start_time.tv_usec; + diff = ktime_sub(stop_time, start_time); + t = ktime_to_us(diff); if (t == 0) { dev_err(chip->card->dev, "?? calculation error..\n"); } else { |