[PATCH v8 1/1] pwm: imx27: workaround of the pwm output bug when decrease the duty cycle

[Frank Li]

On Wed, Oct 09, 2024 at 03:55:35AM +0200, Marek Vasut wrote:
> On 10/8/24 9:41 PM, Frank Li wrote:
>
> [...]
>
> > +	c = clkrate * 1500;
> > +	do_div(c, NSEC_PER_SEC);
> > +
> > +	local_irq_save(flags);
> > +	val = FIELD_GET(MX3_PWMSR_FIFOAV, readl_relaxed(imx->mmio_base + MX3_PWMSR));
> > +
> > +	if (duty_cycles < imx->duty_cycle && (cr & MX3_PWMCR_EN)) {
>
> I think you can use state->enabled instead of (cr & MX3_PWMCR_EN).

state->enabled is new state. Need check old state here. If old state is
disable, needn't this workaround at all.

Frank