diff options
| author |   Ryo Kodama <ryo.kodama.vz@renesas.com> | 2015-11-09 09:42:25 +0900 |
|---|---|---|
| committer |   Thierry Reding <thierry.reding@gmail.com> | 2015-12-16 17:02:14 +0100 |
| commit | 72c16a9f98afad073b4a9c947c1c89bfb886ffcb (patch) | |
| tree | c506bf3b4970c77e0b24e3651f25f597254fdd80 /drivers/pwm | |
| parent | pwm: lpc32xx: return ERANGE, if requested period is not supported (diff) | |
| download | linux-dev-72c16a9f98afad073b4a9c947c1c89bfb886ffcb.tar.xz linux-dev-72c16a9f98afad073b4a9c947c1c89bfb886ffcb.zip | |
pwm: rcar: Improve accuracy of frequency division setting
From: Ryo Kodama <ryo.kodama.vz@renesas.com>
When period_ns is set to the same value of RCAR_PWM_MAX_CYCLE in
rcar_pwm_get_clock_division(), this function should allow such value
for improving accuracy of frequency division setting.
Signed-off-by: Ryo Kodama <ryo.kodama.vz@renesas.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-rcar.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pwm/pwm-rcar.c b/drivers/pwm/pwm-rcar.c index 6e99a63ffa29..7b8ac0678137 100644 --- a/drivers/pwm/pwm-rcar.c +++ b/drivers/pwm/pwm-rcar.c @@ -81,7 +81,7 @@ static int rcar_pwm_get_clock_division(struct rcar_pwm_chip *rp, int period_ns) max = (unsigned long long)NSEC_PER_SEC * RCAR_PWM_MAX_CYCLE * (1 << div); do_div(max, clk_rate); - if (period_ns < max) + if (period_ns <= max) break; } |