From: Sean Paul <seanpaul@xxxxxxxxxxxx> HDCP signalling should not be left on, WARN if it is Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Cc: Daniel Vetter <daniel.vetter@xxxxxxxx> Reviewed-by: Ramalingam C <ramalingam.c@xxxxxxxxx> Signed-off-by: Sean Paul <seanpaul@xxxxxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20191212190230.188505-4-sean@xxxxxxxxxx #v2 Link: https://patchwork.freedesktop.org/patch/msgid/20200117193103.156821-4-sean@xxxxxxxxxx #v3 Changes in v2: -Added to the set in lieu of just clearing the bit Changes in v3: -None Changes in v4: -None --- drivers/gpu/drm/i915/display/intel_ddi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index a1fd8fd67c855..fc84cd7c724fb 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -2013,6 +2013,8 @@ void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state val = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder)); val &= ~TRANS_DDI_FUNC_ENABLE; + WARN_ON(val & TRANS_DDI_HDCP_SIGNALLING); + if (INTEL_GEN(dev_priv) >= 12) { if (!intel_dp_mst_is_master_trans(crtc_state)) { val &= ~(TGL_TRANS_DDI_PORT_MASK | -- Sean Paul, Software Engineer, Google / Chromium OS _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
