diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 51b24cab51ff..0b9c33a000f9 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -36,6 +36,7 @@ #include <asm/byteorder.h> #include <drm/display/drm_dp_helper.h> +#include <drm/display/drm_dp_tunnel.h> #include <drm/display/drm_dsc_helper.h> #include <drm/display/drm_hdmi_helper.h> #include <drm/drm_atomic_helper.h> @@ -3313,18 +3314,21 @@ void intel_dp_sync_state(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct intel_dp *intel_dp = enc_to_intel_dp(encoder); - - if (!crtc_state) - return; + bool dpcd_updated = false; /* * Don't clobber DPCD if it's been already read out during output * setup (eDP) or detect. */ - if (intel_dp->dpcd[DP_DPCD_REV] == 0) + if (crtc_state && intel_dp->dpcd[DP_DPCD_REV] == 0) { intel_dp_get_dpcd(intel_dp); + dpcd_updated = true; + } - intel_dp_reset_max_link_params(intel_dp); + intel_dp_tunnel_resume(intel_dp, crtc_state, dpcd_updated); + + if (crtc_state) + intel_dp_reset_max_link_params(intel_dp); } bool intel_dp_initial_fastset_check(struct intel_encoder *encoder, @@ -5950,6 +5954,8 @@ void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder) struct intel_dp *intel_dp = enc_to_intel_dp(intel_encoder); intel_pps_vdd_off_sync(intel_dp); + + intel_dp_tunnel_suspend(intel_dp); } void intel_dp_encoder_shutdown(struct intel_encoder *intel_encoder) |