[igt-dev] [PATCH i-g-t v2 7/9] lib/igt_chamelium: set EDID serial

Simon Ser simon.ser at intel.com
Wed Jun 19 15:55:16 UTC 2019


Set a different EDID serial string for each Chamelium port, so that we can
easily tell which DRM connector maps to a Chamelium port.

Signed-off-by: Simon Ser <simon.ser at intel.com>
---
 lib/igt_chamelium.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/lib/igt_chamelium.c b/lib/igt_chamelium.c
index 467f1a458516..dcc59e9f0b04 100644
--- a/lib/igt_chamelium.c
+++ b/lib/igt_chamelium.c
@@ -587,6 +587,17 @@ struct chamelium_edid *chamelium_new_edid(struct chamelium *chamelium,
 const struct edid *chamelium_edid_get_raw(struct chamelium_edid *edid,
 					  struct chamelium_port *port)
 {
+	uint32_t *serial;
+
+	/* Product code: Chamelium */
+	edid->raw->prod_code[0] = 'C';
+	edid->raw->prod_code[1] = 'H';
+
+	/* Serial: Chamelium port ID */
+	serial = (uint32_t *) &edid->raw->serial;
+	*serial = port->id;
+
+	edid_update_checksum(edid->raw);
 	return edid->raw;
 }
 
-- 
2.22.0



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