diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 190e617f128e..a45069b6c7e5 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -533,6 +533,12 @@ intel_dp_aux_ch(struct intel_dp *intel_dp, bool has_aux_irq = HAS_AUX_IRQ(dev); bool vdd; + /* + * We will be called with VDD already enabled for dpcd/edid/oui reads. + * In such cases we want to leave VDD enabled and it's up to upper layers + * to turn it off. But for eg. i2c-dev access we need to turn it on/off + * ourselves. + */ vdd = edp_panel_vdd_on(intel_dp); /* dp aux is extremely sensitive to irq latency, hence request the |