This patch enables modeset whenever HDR metadata
needs to be updated to sink.
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
Signed-off-by: Uma Shankar <uma.shan...@intel.com>
---
drivers/gpu/drm/i915/intel_atomic.c | 15 ++++++++++++++-
drivers/gpu/drm/i915/intel_hdmi.c | 4 ++++
2 files changed, 18 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_atomic.c
b/drivers/gpu/drm/i915/intel_atomic.c
index b844e88..4ff6042 100644
--- a/drivers/gpu/drm/i915/intel_atomic.c
+++ b/drivers/gpu/drm/i915/intel_atomic.c
@@ -102,6 +102,16 @@ int intel_digital_connector_atomic_set_property(struct
drm_connector *connector,
return -EINVAL;
}
+static bool blob_equal(const struct drm_property_blob *a,
+ const struct drm_property_blob *b)
+{
+ if (a && b)
+ return a->length == b->length &&
+ !memcmp(a->data, b->data, a->length);
+
+ return !a == !b;
+}
+
int intel_digital_connector_atomic_check(struct drm_connector *conn,
struct drm_connector_state *new_state)
{
@@ -129,7 +139,10 @@ int intel_digital_connector_atomic_check(struct
drm_connector *conn,
new_conn_state->base.colorspace != old_conn_state->base.colorspace
||
new_conn_state->base.picture_aspect_ratio !=
old_conn_state->base.picture_aspect_ratio ||
new_conn_state->base.content_type !=
old_conn_state->base.content_type ||
- new_conn_state->base.scaling_mode !=
old_conn_state->base.scaling_mode)
+ new_conn_state->base.scaling_mode !=
+ old_conn_state->base.scaling_mode ||
+ !blob_equal(new_conn_state->base.hdr_output_metadata_blob_ptr,
+ old_conn_state->base.hdr_output_metadata_blob_ptr))
crtc_state->mode_changed = true;
return 0;
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c
b/drivers/gpu/drm/i915/intel_hdmi.c
index 8decafd..4d06734 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -792,6 +792,10 @@ void intel_read_infoframe(struct intel_encoder *encoder,
struct hdr_static_metadata *hdr_metadata;
int ret;
+ if (!conn_state->hdr_output_metadata_blob_ptr ||
+ conn_state->hdr_output_metadata_blob_ptr->length == 0)
+ return true;
+
hdr_metadata = (struct hdr_static_metadata *)
conn_state->hdr_output_metadata_blob_ptr->data;
--
1.9.1
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