Re: [PATCH v2] drm/msm/dp: do not complete dp_aux_cmd_fifo_tx() if irq is not for aux transfer

From: Stephen Boyd
Date: Thu Dec 15 2022 - 15:10:17 EST


Quoting Dmitry Baryshkov (2022-12-15 10:46:42)
> On 15/12/2022 20:32, Kuogee Hsieh wrote:
> > if (!aux->cmd_busy)
> > return;
> >
> > if (aux->native)
> > - dp_aux_native_handler(aux, isr);
> > + ret = dp_aux_native_handler(aux, isr);
> > else
> > - dp_aux_i2c_handler(aux, isr);
> > + ret = dp_aux_i2c_handler(aux, isr);
> >
> > - complete(&aux->comp);
> > + if (ret == IRQ_HANDLED)
> > + complete(&aux->comp);
>
> Can you just move the complete() into the individual handling functions?
> Then you won't have to return the error code from dp_aux_*_handler() at
> all. You can check `isr' in that function and call complete if there was
> any error.

I'd prefer we apply my patch and pass the irqreturn_t variable to the
caller of this function so spurious irqs are shutdown. Should I send it
as a proper patch?