[Intel-gfx] [PATCH 5/6] drm/i915/dp_mst: Clear the ACT sent flag during encoder disabling too

[Ville Syrjälä]

On Tue, Jun 16, 2020 at 05:18:54PM +0300, Imre Deak wrote:
> During encoder enabling we clear the flag before starting the ACT
> sequence and wait for the flag, but the clearing is missing during
> encoder disabling, add it there too. Since nothing cleared the flag
> automatically we could've run subsequent disabling steps too early.
> 
> Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
> Signed-off-by: Imre Deak <imre.deak at intel.com>

Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

> ---
>  drivers/gpu/drm/i915/display/intel_dp_mst.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> index b66b56a070e5..9308b5920780 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> @@ -389,6 +389,8 @@ static void intel_mst_post_disable_dp(struct intel_atomic_state *state,
>  
>  	drm_dp_update_payload_part2(&intel_dp->mst_mgr);
>  
> +	clear_act_sent(intel_dp);
> +
>  	val = intel_de_read(dev_priv,
>  			    TRANS_DDI_FUNC_CTL(old_crtc_state->cpu_transcoder));
>  	val &= ~TRANS_DDI_DP_VC_PAYLOAD_ALLOC;
> -- 
> 2.23.1

-- 
Ville Syrjälä
Intel