* Reizer, Eyal <eyalr@xxxxxx> [171014 23:55]: > > From: Tony Lindgren [mailto:tony@xxxxxxxxxxx] > > > > On omaps, if the wlcore interrupt is configured as level instead of edge, > > L4PER will stop doing hardware based idling after ifconfig wlan0 down is > > done and the WL_EN line is pulled down. > > > Do we understand why omap is doing this? Is it a bug or a normal behavior? > > AFAIK way back edge interrupts have been used. On some omaps based boards. > They have used level interrupts instead due to occasional interrupts being missed > By the omap interrupts controller when using edge based interrupts which caused > Issues. This was the reason many boards are set to using level based interrupts which > Seemed much more robust. No idea yet why exactly the gpio modules won't idle after that. But for making edge interrupts behave, I suspect that Grygorii's patch "[RESEND PATCH] gpio: omap: Fix lost edge interrupts" fixes those issues. Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
