[igt-dev] [PATCH v4 08/13] chamelium: Use preferred mode when testing a single mode

[Maxime Ripard]

The current code is testing the first mode in the connector list when it's
testing a single mode. While this is arbitrarily chosen, it makes more
sense to use the preferred mode reported by the display.

Signed-off-by: Maxime Ripard <maxime.ripard at bootlin.com>
---
 tests/kms_chamelium.c | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/tests/kms_chamelium.c b/tests/kms_chamelium.c
index 490bacc6f5fe..5d7fb83fb74f 100644
--- a/tests/kms_chamelium.c
+++ b/tests/kms_chamelium.c
@@ -534,6 +534,20 @@ static void do_test_display_crc(data_t *data, struct chamelium_port *port,
 	igt_remove_fb(data->drm_fd, &fb);
 }
 
+static drmModeModeInfo *find_preferred_mode(drmModeConnector *connector)
+{
+	int i;
+
+	for (i = 0; i < connector->count_modes; i++) {
+		drmModeModeInfo *mode = &connector->modes[i];
+
+		if (mode->type & DRM_MODE_TYPE_PREFERRED)
+			return mode;
+	}
+
+	return NULL;
+}
+
 static void test_display_crc_one_mode(data_t *data, struct chamelium_port *port,
 				      int count)
 {
@@ -549,7 +563,10 @@ static void test_display_crc_one_mode(data_t *data, struct chamelium_port *port,
 	primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY);
 	igt_assert(primary);
 
-	do_test_display_crc(data, port, output, &connector->modes[0], count);
+	mode = find_preferred_mode(connector);
+	igt_assert(mode);
+
+	do_test_display_crc(data, port, output, mode, count);
 
 	drmModeFreeConnector(connector);
 }
-- 
git-series 0.9.1