diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2019-08-24 17:37:05 +0200 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2019-09-21 01:48:55 +0200 |
| commit | deb9c462f4e539cc7f8389b9855eb7a507c78e7e (patch) | |
| tree | c91692f7ff04b4a10b46b0d348016588e6ac6b28 /drivers/pwm/pwm-sun4i.c | |
| parent | 797a5ebc26daee5552e668ee4622bc3f47c1f743 (diff) | |
pwm: sun4i: Don't update the state for the caller of pwm_apply_state()
The pwm-sun4i driver is one of only three PWM drivers which updates the
state for the caller of pwm_apply_state(). This might have surprising
results if the caller reuses the values expecting them to still
represent the same state.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm/pwm-sun4i.c')
| -rw-r--r-- | drivers/pwm/pwm-sun4i.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c index de78c824bbfd..39007a7c0d83 100644 --- a/drivers/pwm/pwm-sun4i.c +++ b/drivers/pwm/pwm-sun4i.c @@ -192,12 +192,6 @@ static int sun4i_pwm_calculate(struct sun4i_pwm_chip *sun4i_pwm, *dty = div; *prsclr = prescaler; - div = (u64)pval * NSEC_PER_SEC * *prd; - state->period = DIV_ROUND_CLOSEST_ULL(div, clk_rate); - - div = (u64)pval * NSEC_PER_SEC * *dty; - state->duty_cycle = DIV_ROUND_CLOSEST_ULL(div, clk_rate); - return 0; } |