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drm/i915/dp_mst: Clear only the ACT sent flag from DP_TP_STATUS

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It's not clear if the DP_TP_STATUS flags other than the ACT sent flag
have some side-effect, so don't clear those; we don't depend on the
state of these flags anyway.

Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200616141855.746-4-imre.deak@intel.com
This commit is contained in:
Imre Deak 2020-06-16 17:18:53 +03:00
parent e60b867252
commit 3d289d2578
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/display/intel_dp_mst.c
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@ -323,7 +323,7 @@ static void clear_act_sent(struct intel_dp *intel_dp)
struct drm_i915_private *i915 = dp_to_i915(intel_dp);
intel_de_write(i915, intel_dp->regs.dp_tp_status,
intel_de_read(i915, intel_dp->regs.dp_tp_status));
DP_TP_STATUS_ACT_SENT);
}
static void wait_for_act_sent(struct intel_dp *intel_dp)