From: Robert Jarzmik <robert.jarz...@free.fr> Date: Sat, 12 Sep 2015 13:45:22 +0200
> Instead of using directly the OS timer through direct register access, > use the standard sched_clock(), which will end up in OSCR reading > anyway. > > This is a first step for direct access register removal and machine > specific code removal from this driver. > > Signed-off-by: Robert Jarzmik <robert.jarz...@free.fr> What is the granularity of the OSCR register? If it is not nanoseconds, then you need to adjust calculations such as this one: > @@ -549,7 +548,7 @@ static int pxa_irda_hard_xmit(struct sk_buff *skb, struct > net_device *dev) > skb_copy_from_linear_data(skb, si->dma_tx_buff, skb->len); > > if (mtt) > - while ((unsigned)(readl_relaxed(OSCR) - > si->last_oscr)/4 < mtt) > + while ((sched_clock() - si->last_clk) / 4 < mtt) > cpu_relax(); -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
