Quoting khsieh@xxxxxxxxxxxxxx (2021-01-13 09:44:24) > On 2021-01-11 11:55, Stephen Boyd wrote: > > Quoting Kuogee Hsieh (2021-01-07 12:30:24) > >> irq_hpd event can only be executed at connected state. Therefore > >> irq_hpd event should be postponed if it happened at connection > >> pending state. This patch also make sure both link rate and lane > > > > Why does it happen at connection pending state? > plug in need two state to complete it. > advance to connection pending state once link training completed and > sent uevent notification to frame work. > transition to connected state after frame work provided resolution > timing and start transmit video panel. > Therefore irq_hpd should not be handled if it occurred before connected > state. Sure that's what's going on in the patch but you didn't answer my question. Why does irq_hpd happen before connected state?
