On Fri, Mar 09, 2018 at 08:24:21PM +0900, Yoshihiro Shimoda wrote:
> From: Ryo Kodama <ryo.kodama.vz@xxxxxxxxxxx>
>
> This patch fixes an issue that is possible to set mismatch value
> to duty for R-Car PWM if we input the following commands:
>
> # cd /sys/class/pwm/<pwmchip>/
> # echo 0 > export
> # cd pwm0
> # echo 30 > period
> # echo 30 > duty_cycle
> # echo 0 > duty_cycle
> # cat duty_cycle
> 0
> # echo 1 > enable
> --> Then, the actual duty_cycle is 30, not 0.
>
> So, this patch adds a condition into rcar_pwm_config() to fix
> this issue.
>
> Signed-off-by: Ryo Kodama <ryo.kodama.vz@xxxxxxxxxxx>
> [shimoda: revise the commit log and add Fixes and Cc tags]
> Fixes: ed6c1476bf7f ("pwm: Add support for R-Car PWM Timer")
> Cc: Cc: <stable@xxxxxxxxxxxxxxx> # v4.4+
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
> ---
> drivers/pwm/pwm-rcar.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
Applied, thanks.
Thierry
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