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drm/i915/mst: use intel_de_rmw() to simplify VC payload alloc set/clear 

Less is more, fewer lines to wonder about.

Cc: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210813115610.20010-1-jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2021-08-13 14:56:10 +03:00
parent f6864b27d6
commit 5918241f60
1 changed files with 2 additions and 7 deletions
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9
drivers/gpu/drm/i915/display/intel_dp_mst.c
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@ -396,7 +396,6 @@ static void intel_mst_post_disable_dp(struct intel_atomic_state *state,
to_intel_connector(old_conn_state->connector);
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
bool last_mst_stream;
u32 val;
intel_dp->active_mst_links--;
last_mst_stream = intel_dp->active_mst_links == 0;
@ -412,12 +411,8 @@ static void intel_mst_post_disable_dp(struct intel_atomic_state *state,
clear_act_sent(encoder, old_crtc_state);
val = intel_de_read(dev_priv,
TRANS_DDI_FUNC_CTL(old_crtc_state->cpu_transcoder));
val &= ~TRANS_DDI_DP_VC_PAYLOAD_ALLOC;
intel_de_write(dev_priv,
TRANS_DDI_FUNC_CTL(old_crtc_state->cpu_transcoder),
val);
intel_de_rmw(dev_priv, TRANS_DDI_FUNC_CTL(old_crtc_state->cpu_transcoder),
TRANS_DDI_DP_VC_PAYLOAD_ALLOC, 0);
wait_for_act_sent(encoder, old_crtc_state);