On Mon, Jan 13, 2025 at 08:30:30AM +0100, Andre Werner wrote: > Fall back to polling mode if no interrupt is configured because there > is no possibility to connect the interrupt pin. > If "interrupts" property is missing in devicetree the driver > uses a delayed worker to pull the state of interrupt status registers. pull ? Hmm... ... > V6: > - Use polling mode for IRQ numbers <= 0 which encounter no valid IRQ > were found/defined. Thanks, this part looks better now. ... > +static void sc16is7xx_poll_proc(struct kthread_work *ws) > +{ > + struct sc16is7xx_port *s = container_of(ws, struct sc16is7xx_port, poll_work.work); > + > + /* Reuse standard IRQ handler. Interrupt ID is unused in this context. */ Period. > + sc16is7xx_irq(0, s); > + > + /* Setup delay based on SC16IS7XX_POLL_PERIOD_MS */ No period. > + kthread_queue_delayed_work(&s->kworker, &s->poll_work, > + msecs_to_jiffies(SC16IS7XX_POLL_PERIOD_MS)); > +} Please, go through the comments you added in the patch and use the style that is mostly used in the driver for the similar (one-line comment) situations. ... > + /* Initialize kernel thread for polling */ Again, no period. -- With Best Regards, Andy Shevchenko