diff mbox series

[03/11] drm/i915/mst: Read out FEC state

Message ID 20230502143906.2401-4-ville.syrjala@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915: MST+DSC nukage and state stuff | expand

Commit Message

Ville Syrjala May 2, 2023, 2:38 p.m. UTC 
From: Ville Syrjälä <ville.syrjala@linux.intel.com>

The MST codepath is missing FEC readout. Add it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_ddi.c | 5 +++++
 1 file changed, 5 insertions(+)

Comments

Luca Coelho May 25, 2023, 7:56 a.m. UTC | #1 
On Tue, 2023-05-02 at 17:38 +0300, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> 
> The MST codepath is missing FEC readout. Add it.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_ddi.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> index 55f36d9d509c..41cfa28166e4 100644
> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> @@ -3763,6 +3763,11 @@ static void intel_ddi_read_func_ctl(struct intel_encoder *encoder,
>  		intel_cpu_transcoder_get_m1_n1(crtc, cpu_transcoder,
>  					       &pipe_config->dp_m_n);
>  
> +		if (DISPLAY_VER(dev_priv) >= 11)
> +			pipe_config->fec_enable =
> +				intel_de_read(dev_priv,
> +					      dp_tp_ctl_reg(encoder, pipe_config)) & DP_TP_CTL_FEC_ENABLE;
> +
>  		pipe_config->infoframes.enable |=
>  			intel_hdmi_infoframes_enabled(encoder, pipe_config);
>  		break;

LGTM.

Reviewed-by: Luca Coelho <luciano.coelho@intel.com>

--
Cheers,
Luca.
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 55f36d9d509c..41cfa28166e4 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3763,6 +3763,11 @@  static void intel_ddi_read_func_ctl(struct intel_encoder *encoder,
 		intel_cpu_transcoder_get_m1_n1(crtc, cpu_transcoder,
 					       &pipe_config->dp_m_n);
 
+		if (DISPLAY_VER(dev_priv) >= 11)
+			pipe_config->fec_enable =
+				intel_de_read(dev_priv,
+					      dp_tp_ctl_reg(encoder, pipe_config)) & DP_TP_CTL_FEC_ENABLE;
+
 		pipe_config->infoframes.enable |=
 			intel_hdmi_infoframes_enabled(encoder, pipe_config);
 		break;