drm/i915: Provide the quantization range in the AVI infoframe

[linux-imx.git] / drivers / gpu / drm / i915 / intel_sdvo.c

diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 3e34a3592e324ed24ee24ab5c4af2bd229fd3a3b..f01063a2323ab64874f7f94b970dcd569ad68554 100644 (file)
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -126,6 +126,7 @@ struct intel_sdvo {
        bool is_hdmi;
        bool has_hdmi_monitor;
        bool has_hdmi_audio;
+       bool rgb_quant_range_selectable;
 
        /**
         * This is set if we detect output of sdvo device as LVDS and
@@ -947,7 +948,8 @@ static bool intel_sdvo_write_infoframe(struct intel_sdvo *intel_sdvo,
                                    &tx_rate, 1);
 }
 
-static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo)
+static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo,
+                                        const struct drm_display_mode *adjusted_mode)
 {
        struct dip_infoframe avi_if = {
                .type = DIP_TYPE_AVI,
@@ -956,6 +958,13 @@ static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo)
        };
        uint8_t sdvo_data[4 + sizeof(avi_if.body.avi)];
 
+       if (intel_sdvo->rgb_quant_range_selectable) {
+               if (adjusted_mode->private_flags & INTEL_MODE_LIMITED_COLOR_RANGE)
+                       avi_if.body.avi.ITC_EC_Q_SC |= DIP_AVI_RGB_QUANT_RANGE_LIMITED;
+               else
+                       avi_if.body.avi.ITC_EC_Q_SC |= DIP_AVI_RGB_QUANT_RANGE_FULL;
+       }
+
        intel_dip_infoframe_csum(&avi_if);
 
        /* sdvo spec says that the ecc is handled by the hw, and it looks like
@@ -1134,7 +1143,7 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
                intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_HDMI);
                intel_sdvo_set_colorimetry(intel_sdvo,
                                           SDVO_COLORIMETRY_RGB256);
-               intel_sdvo_set_avi_infoframe(intel_sdvo);
+               intel_sdvo_set_avi_infoframe(intel_sdvo, adjusted_mode);
        } else
                intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_DVI);
 
@@ -1526,6 +1535,8 @@ intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
                        if (intel_sdvo->is_hdmi) {
                                intel_sdvo->has_hdmi_monitor = drm_detect_hdmi_monitor(edid);
                                intel_sdvo->has_hdmi_audio = drm_detect_monitor_audio(edid);
+                               intel_sdvo->rgb_quant_range_selectable =
+                                       drm_rgb_quant_range_selectable(edid);
                        }
                } else
                        status = connector_status_disconnected;
@@ -1577,6 +1588,7 @@ intel_sdvo_detect(struct drm_connector *connector, bool force)
 
        intel_sdvo->has_hdmi_monitor = false;
        intel_sdvo->has_hdmi_audio = false;
+       intel_sdvo->rgb_quant_range_selectable = false;
 
        if ((intel_sdvo_connector->output_flag & response) == 0)
                ret = connector_status_disconnected;