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| author | José Roberto de Souza <jose.souza@intel.com> | 2021-07-26 21:15:59 +0300 |
|---|---|---|
| committer | José Roberto de Souza <jose.souza@intel.com> | 2021-07-27 23:35:02 +0300 |
| commit | 84030adb9e27d202a66022488bf0349a8bd45213 (patch) | |
| tree | 8c89007decb9c6afb36c742ea1c9f900d9f982b3 /drivers/gpu/drm/i915/display/intel_dp_mst.c | |
| parent | 192fbfb7674481c605dc49ead3ada9a4ee2420e1 (diff) | |
| download | linux-84030adb9e27d202a66022488bf0349a8bd45213.tar.xz | |
drm/i915/display: Disable audio, DRRS and PSR before planes
HDMI and DisplayPort sequences states that audio and PSR should be
disabled before planes are disabled.
Not following it did not caused any problems up to Alderlake-P but
for this platform it causes underruns during the PSR2 disable
sequence.
Specification don't mention that DRRS should be disabled before planes
but it looks safer to switch back to the default refresh rate before
following with the rest of the pipe disable sequence.
BSpec: 49191
BSpec: 49190
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210726181559.80855-1-jose.souza@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp_mst.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_mst.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index e2eb46337369..8d13d7b26a25 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -348,6 +348,16 @@ static void wait_for_act_sent(struct intel_encoder *encoder, drm_dp_check_act_status(&intel_dp->mst_mgr); } +static void intel_mst_pre_disable_dp(struct intel_atomic_state *state, + struct intel_encoder *encoder, + const struct intel_crtc_state *old_crtc_state, + const struct drm_connector_state *old_conn_state) +{ + if (old_crtc_state->has_audio) + intel_audio_codec_disable(encoder, old_crtc_state, + old_conn_state); +} + static void intel_mst_disable_dp(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *old_crtc_state, @@ -372,9 +382,6 @@ static void intel_mst_disable_dp(struct intel_atomic_state *state, if (ret) { drm_dbg_kms(&i915->drm, "failed to update payload %d\n", ret); } - if (old_crtc_state->has_audio) - intel_audio_codec_disable(encoder, - old_crtc_state, old_conn_state); } static void intel_mst_post_disable_dp(struct intel_atomic_state *state, @@ -903,6 +910,7 @@ intel_dp_create_fake_mst_encoder(struct intel_digital_port *dig_port, enum pipe intel_encoder->compute_config = intel_dp_mst_compute_config; intel_encoder->compute_config_late = intel_dp_mst_compute_config_late; + intel_encoder->pre_disable = intel_mst_pre_disable_dp; intel_encoder->disable = intel_mst_disable_dp; intel_encoder->post_disable = intel_mst_post_disable_dp; intel_encoder->update_pipe = intel_ddi_update_pipe; |