On Mon, 12 Jun 2017 13:05:30 +0800 Jisheng Zhang wrote: > On Fri, 9 Jun 2017 11:26:19 +0200 Linus Walleij wrote: > > > > > On Fri, Jun 2, 2017 at 1:27 AM, <xgchenshy@xxxxxxxxx> wrote: > > > From: Xiaoguang Chen <xgchenshy@xxxxxxxxx> > > > > > > dwapb_irq_set_type overwrites polarity register value for > > > IRQ_TYPE_EDGE_BOTH case. If the polarity of one gpio is 0 > > > by default, then it will set falling edge irq trigger. > > > and the gpio may requires rising edge irq for the first time, > > > and it will be missed. > > > > > > Do not overwrite polarity register for IRQ_TYPE_EDGE_BOTH case > > > can solve this issue. > > I think this is a correct fix. > > > > > > > Signed-off-by: Xiaoguang Chen <xgchenshy@xxxxxxxxx> > > Tested-by: Jisheng Zhang <jszhang@xxxxxxxxxxx> Per my test, this patch fixes the following bug: make use of CD-GPIO mechanism. Cold boot with sdcard inserted, hot-unplug the sdcard, sometimes, kernel won't get the remove interrupt. Thanks -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html