From: José Roberto de Souza Date: Mon, 2 Dec 2019 22:25:12 +0000 (-0800) Subject: drm/i915/dp: Power down sink before disable pipe/transcoder clock X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=50a7efb280a8f13a4cfdfd5f921f53925a09a09a;p=linux.git drm/i915/dp: Power down sink before disable pipe/transcoder clock Disabling pipe/transcoder clock before power down sink could cause sink lost signal, causing it to trigger a hotplug to notify source that link signal was lost. Cc: Lucas De Marchi Reviewed-by: Ville Syrjälä Signed-off-by: José Roberto de Souza Link: https://patchwork.freedesktop.org/patch/msgid/20191202222513.337777-2-jose.souza@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index a976606d21c79..0ce06a94a27ef 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -3802,12 +3802,12 @@ static void intel_ddi_post_disable_dp(struct intel_encoder *encoder, enum phy phy = intel_port_to_phy(dev_priv, encoder->port); if (!is_mst) { - intel_ddi_disable_pipe_clock(old_crtc_state); /* * Power down sink before disabling the port, otherwise we end * up getting interrupts from the sink on detecting link loss. */ intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF); + intel_ddi_disable_pipe_clock(old_crtc_state); } intel_disable_ddi_buf(encoder, old_crtc_state);