[PATCH i-g-t, v5 2/4] lib/igt_hdr: Add helpers to enable and disable HDR on an output

[Swati Sharma <swati2.sharma@intel.com>]

Add convenience helpers to explicitly enable and disable HDR on an
output connector.

v2: -rebase

Co-developed-by: Claude Opus 4.6
Signed-off-by: Swati Sharma <swati2.sharma@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
---
 lib/igt_hdr.c | 16 ++++++++++++++++
 lib/igt_hdr.h |  3 +++
 2 files changed, 19 insertions(+)

diff --git a/lib/igt_hdr.c b/lib/igt_hdr.c
index 25658ab9e..c0ed9e843 100644
--- a/lib/igt_hdr.c
+++ b/lib/igt_hdr.c
@@ -222,3 +222,19 @@ bool igt_output_supports_hdr(igt_output_t *output)
 {
 	return igt_output_has_prop(output, IGT_CONNECTOR_HDR_OUTPUT_METADATA);
 }
+
+void igt_hdr_disable(igt_output_t *output)
+{
+	igt_hdr_set_metadata(output, NULL);
+	igt_output_set_prop_value(output, IGT_CONNECTOR_MAX_BPC, 8);
+}
+
+void igt_hdr_enable(igt_output_t *output)
+{
+	struct hdr_output_metadata meta;
+
+	/* Fill HDR metadata and enable it on the output */
+	igt_hdr_fill_st2084(&meta);
+	igt_hdr_set_metadata(output, &meta);
+	igt_output_set_prop_value(output, IGT_CONNECTOR_MAX_BPC, 10);
+}
diff --git a/lib/igt_hdr.h b/lib/igt_hdr.h
index 09243f915..15ce5f117 100644
--- a/lib/igt_hdr.h
+++ b/lib/igt_hdr.h
@@ -25,4 +25,7 @@ void igt_hdr_set_metadata(igt_output_t *output,
 
 bool igt_output_supports_hdr(igt_output_t *output);
 
+void igt_hdr_disable(igt_output_t *output);
+void igt_hdr_enable(igt_output_t *output);
+
 #endif /* IGT_HDR_H */
-- 
2.25.1