* [PATCH] pwm: rcar: Improve accuracy of frequency division setting
@ 2015-11-09 0:42 Yoshihiro Shimoda
2015-12-16 16:03 ` Thierry Reding
0 siblings, 1 reply; 2+ messages in thread
From: Yoshihiro Shimoda @ 2015-11-09 0:42 UTC (permalink / raw)
To: thierry.reding; +Cc: ryo.kodama.vz, linux-pwm, linux-sh, Yoshihiro Shimoda
From: Ryo Kodama <ryo.kodama.vz@renesas.com>
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>
---
drivers/pwm/pwm-rcar.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pwm/pwm-rcar.c b/drivers/pwm/pwm-rcar.c
index 6e99a63..7b8ac06 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;
}
--
1.9.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] pwm: rcar: Improve accuracy of frequency division setting
2015-11-09 0:42 [PATCH] pwm: rcar: Improve accuracy of frequency division setting Yoshihiro Shimoda
@ 2015-12-16 16:03 ` Thierry Reding
0 siblings, 0 replies; 2+ messages in thread
From: Thierry Reding @ 2015-12-16 16:03 UTC (permalink / raw)
To: Yoshihiro Shimoda; +Cc: ryo.kodama.vz, linux-pwm, linux-sh
[-- Attachment #1: Type: text/plain, Size: 623 bytes --]
On Mon, Nov 09, 2015 at 09:42:25AM +0900, Yoshihiro Shimoda wrote:
> From: Ryo Kodama <ryo.kodama.vz@renesas.com>
>
> 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>
> ---
> drivers/pwm/pwm-rcar.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Applied, thanks.
Thierry
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 819 bytes --]
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2015-12-16 16:03 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2015-11-09 0:42 [PATCH] pwm: rcar: Improve accuracy of frequency division setting Yoshihiro Shimoda
2015-12-16 16:03 ` Thierry Reding
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).