On Wed, Aug 02, 2023 at 11:53:59PM +0100, Conor Dooley wrote: > On Thu, Aug 03, 2023 at 12:57:44AM +0300, Andy Shevchenko wrote: > > On Wed, Aug 02, 2023 at 04:43:48PM +0100, Conor Dooley wrote: > > > On Wed, Aug 02, 2023 at 11:05:44PM +0800, Jisheng Zhang wrote: > > > > The driver fall back to poll style when there's no irq. "poll" still > > > > looks better than no support. > > > > > > What is the user for this where the interrupt is not actually wired up > > > in the hardware? > > > > FYI: kernel console doesn't use interrupts, so for example it might be > > the debug port. Note, I have no idea of the Zhang's case, just my assumption. > > I'm less interested in what the software is doing, it's what the device > that has not connected the interrupt is that I am curious about. As I said. The hw may be purely for debugging purposes (and yes, I have heard about such a hardware). -- With Best Regards, Andy Shevchenko