drm/i915: Add state readout for DRM infoframe

Added state readout for DRM infoframe and enabled
state validation for DRM infoframe.

v2: Addressed Ville's review comments and dropped the
unused drm infoframe read at intel_hdmi_init.

v3: Removed a redundant platform check as per Ville's
comment.

Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1558015817-12025-13-git-send-email-uma.shankar@intel.com

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index df06e5b..350eaf5 100644 (file)
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -3844,6 +3844,9 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
        intel_read_infoframe(encoder, pipe_config,
                             HDMI_INFOFRAME_TYPE_VENDOR,
                             &pipe_config->infoframes.hdmi);
+       intel_read_infoframe(encoder, pipe_config,
+                            HDMI_INFOFRAME_TYPE_DRM,
+                            &pipe_config->infoframes.drm);
 }
 
 static enum intel_output_type

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 909171d..6a063d3 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -12569,6 +12569,7 @@ intel_pipe_config_compare(struct drm_i915_private *dev_priv,
        PIPE_CONF_CHECK_INFOFRAME(avi);
        PIPE_CONF_CHECK_INFOFRAME(spd);
        PIPE_CONF_CHECK_INFOFRAME(hdmi);
+       PIPE_CONF_CHECK_INFOFRAME(drm);
 
 #undef PIPE_CONF_CHECK_X
 #undef PIPE_CONF_CHECK_I