Re: [PATCH v4] pwm: tiehrpwm: Enable pwmchip's parent device before setting configuration

[Gokul Praveen]

Hello Uwe,

On 21/01/26 15:48, Uwe Kleine-König wrote:
> Hello Gokul,
>
> On Wed, Jan 21, 2026 at 11:41:34AM +0530, Gokul Praveen wrote:
> > The period and duty cycle configurations on J7200 and J784S4 SoCs
> > does not get reflected after setting them using sysfs nodes.
> > This is because at the end of ehrpwm_pwm_config function,
> > the put_sync function is called which resets the hardware.
> >
> > Hold the PWM controller out of low-power mode during .apply() to
> > make sure it accepts the writes to its registers.
> >
> > This renders the calls to pm_runtime_get_sync() and
> > pm_runtime_put_sync() in ehrpwm_pwm_config() into no-ops, so
> > these can be dropped.
> >
> > Fixes: 5f027d9b83db("pwm: tiehrpwm: Implement .apply() callback")
> > Signed-off-by: Gokul Praveen <g-praveen@xxxxxx>
>
> I applied this patch to
>
> 	https://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux.git pwm/for-next
>
> and will send it during the next merge window. The problem is old
> (v5.18-rc1~54^2~29 from 2021) and it's late in the development cycle, so
> I won't bother Linus with it for 6.19.

Thank you for your continued support on this issue as well as for 
accepting the patch.

Best Regards
Gokul Praveen
> Best regards
> Uwe