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drm/i915/mst: Clear ACT just before triggering payload allocation 

Follow the bspec sequence more closely and clear ACT sent just
before triggering the allocation. Can't see why we'd want to
deviate from the spec sequence here.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231018154123.5479-4-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
pull/477/merge
Ville Syrjälä 2023-10-18 18:41:22 +03:00
parent d068fa5373
commit 817cb16e14
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/i915/display/intel_dp_mst.c
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@ -791,8 +791,6 @@ static void intel_mst_enable_dp(struct intel_atomic_state *state,
drm_WARN_ON(&dev_priv->drm, pipe_config->has_pch_encoder);
clear_act_sent(encoder, pipe_config);
if (intel_dp_is_uhbr(pipe_config)) {
const struct drm_display_mode *adjusted_mode =
&pipe_config->hw.adjusted_mode;
@ -806,6 +804,8 @@ static void intel_mst_enable_dp(struct intel_atomic_state *state,
intel_ddi_enable_transcoder_func(encoder, pipe_config);
clear_act_sent(encoder, pipe_config);
intel_de_rmw(dev_priv, TRANS_DDI_FUNC_CTL(trans), 0,
TRANS_DDI_DP_VC_PAYLOAD_ALLOC);