On Thu, 2025-06-26 at 11:20 +0300, Imre Deak wrote: > From: Imre Deak <imre.d...@gmail.com> > > An AUX access failure during HPD IRQ handling should be handled by > falling back to a full connector detection, ensure that if the failure > happens while reading/acking a link service IRQ. > > Signed-off-by: Imre Deak <imre.d...@gmail.com> > --- > drivers/gpu/drm/i915/display/intel_dp.c | 7 +++++-- > 1 file changed, 5 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_dp.c > b/drivers/gpu/drm/i915/display/intel_dp.c > index 7eb208d2c321b..66db426b4aca1 100644 > --- a/drivers/gpu/drm/i915/display/intel_dp.c > +++ b/drivers/gpu/drm/i915/display/intel_dp.c > @@ -5430,12 +5430,15 @@ static bool intel_dp_check_link_service_irq(struct > intel_dp *intel_dp) > return false; > > if (drm_dp_dpcd_readb(&intel_dp->aux, > - DP_LINK_SERVICE_IRQ_VECTOR_ESI0, &val) != 1 || > !val) > + DP_LINK_SERVICE_IRQ_VECTOR_ESI0, &val) != 1) > + return true; > + > + if (!val) > return false; > > if (drm_dp_dpcd_writeb(&intel_dp->aux, > DP_LINK_SERVICE_IRQ_VECTOR_ESI0, val) != 1) > - return false; > + return true; > > if (val & RX_CAP_CHANGED) > reprobe_needed = true;
Reviewed-by: Luca Coelho <luciano.coe...@intel.com> -- Cheers, Luca.
