diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-06-10 05:30:17 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-06-10 05:30:17 -0300 |
| commit | d635711daa98be86d4c7fd01499c34f566b54ccb (patch) | |
| tree | aa5cc3760a27c3d57146498cb82fa549547de06c /drivers/pwm/pwm-omap-dmtimer.c | |
| parent | c91265cd0efb83778f015b4d4b1129bd2cfd075e (diff) | |
Linux-libre 4.6.2-gnu
Diffstat (limited to 'drivers/pwm/pwm-omap-dmtimer.c')
| -rw-r--r-- | drivers/pwm/pwm-omap-dmtimer.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/pwm/pwm-omap-dmtimer.c b/drivers/pwm/pwm-omap-dmtimer.c index e0679eb39..b7e6ecba7 100644 --- a/drivers/pwm/pwm-omap-dmtimer.c +++ b/drivers/pwm/pwm-omap-dmtimer.c @@ -102,7 +102,8 @@ static int pwm_omap_dmtimer_config(struct pwm_chip *chip, unsigned long clk_rate; bool timer_active; - dev_dbg(chip->dev, "duty cycle: %d, period %d\n", duty_ns, period_ns); + dev_dbg(chip->dev, "requested duty cycle: %d ns, period: %d ns\n", + duty_ns, period_ns); mutex_lock(&omap->mutex); if (duty_ns == pwm_get_duty_cycle(pwm) && @@ -166,6 +167,12 @@ static int pwm_omap_dmtimer_config(struct pwm_chip *chip, duty_cycles = period_cycles - 1; } + dev_dbg(chip->dev, "effective duty cycle: %lld ns, period: %lld ns\n", + DIV_ROUND_CLOSEST_ULL((u64)NSEC_PER_SEC * duty_cycles, + clk_rate), + DIV_ROUND_CLOSEST_ULL((u64)NSEC_PER_SEC * period_cycles, + clk_rate)); + load_value = (DM_TIMER_MAX - period_cycles) + 1; match_value = load_value + duty_cycles - 1; |