Reviewed-by: Alexandre Mergnat <amergnat@xxxxxxxxxxxx> On 17/07/2023 16:14, AngeloGioacchino Del Regno wrote:
The interrupt handler for HPD is useful only if a display is actually supposed to be hotpluggable, as that manages the machinery to perform cable (un)plug detection, debouncing and setup for re-training. Since eDP panels are not supposed to be hotpluggable we can avoid using the HPD interrupts altogether and rely on HPD polling only for the suspend/resume case, saving us some spinlocking action and the overhead of interrupts firing at every suspend/resume cycle, achieving a faster (even if just slightly) display resume.
-- Regards, Alexandre
