[PATCH i-g-t v3 1/3] tests/chamelium: Update connector state without reprobe when possible

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This renames the reprobe_connector function to update_connector and
ensures that full reprobe of the connector is only done when really
necessary (e.g. when changing the EDID).

A full reprobe takes time and is not required for updating the connector
state. Thus, this allows executing tests faster.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@xxxxxxxxxxxxxxx>
---
 tests/chamelium.c | 34 ++++++++++++++++++----------------
 1 file changed, 18 insertions(+), 16 deletions(-)

diff --git a/tests/chamelium.c b/tests/chamelium.c
index b412c6a7..346018a5 100644
--- a/tests/chamelium.c
+++ b/tests/chamelium.c
@@ -103,13 +103,14 @@ require_connector_present(data_t *data, unsigned int type)
 }
 
 static drmModeConnection
-reprobe_connector(data_t *data, struct chamelium_port *port)
+update_connector(data_t *data, struct chamelium_port *port, bool reprobe)
 {
 	drmModeConnector *connector;
 	drmModeConnection status;
 
-	igt_debug("Reprobing %s...\n", chamelium_port_get_name(port));
-	connector = chamelium_port_get_connector(data->chamelium, port, true);
+	igt_debug("Updating %s...\n", chamelium_port_get_name(port));
+	connector = chamelium_port_get_connector(data->chamelium, port,
+						 reprobe);
 	igt_assert(connector);
 	status = connector->connection;
 
@@ -119,7 +120,7 @@ reprobe_connector(data_t *data, struct chamelium_port *port)
 
 static void
 wait_for_connector(data_t *data, struct chamelium_port *port,
-		   drmModeConnection status)
+		   drmModeConnection status, bool reprobe)
 {
 	bool finished = false;
 
@@ -132,7 +133,7 @@ wait_for_connector(data_t *data, struct chamelium_port *port,
 	 * that hpd events work in the event that hpd doesn't work on the system
 	 */
 	igt_until_timeout(HOTPLUG_TIMEOUT) {
-		if (reprobe_connector(data, port) == status) {
+		if (update_connector(data, port, reprobe) == status) {
 			finished = true;
 			return;
 		}
@@ -151,11 +152,12 @@ reset_state(data_t *data, struct chamelium_port *port)
 	chamelium_reset(data->chamelium);
 
 	if (port) {
-		wait_for_connector(data, port, DRM_MODE_DISCONNECTED);
+		wait_for_connector(data, port, DRM_MODE_DISCONNECTED, false);
 	} else {
 		for (p = 0; p < data->port_count; p++) {
 			port = data->ports[p];
-			wait_for_connector(data, port, DRM_MODE_DISCONNECTED);
+			wait_for_connector(data, port, DRM_MODE_DISCONNECTED,
+					   false);
 		}
 	}
 }
@@ -175,7 +177,7 @@ test_basic_hotplug(data_t *data, struct chamelium_port *port, int toggle_count)
 		/* Check if we get a sysfs hotplug event */
 		chamelium_plug(data->chamelium, port);
 		igt_assert(igt_hotplug_detected(mon, HOTPLUG_TIMEOUT));
-		igt_assert_eq(reprobe_connector(data, port),
+		igt_assert_eq(update_connector(data, port, false),
 			      DRM_MODE_CONNECTED);
 
 		igt_flush_hotplugs(mon);
@@ -183,7 +185,7 @@ test_basic_hotplug(data_t *data, struct chamelium_port *port, int toggle_count)
 		/* Now check if we get a hotplug from disconnection */
 		chamelium_unplug(data->chamelium, port);
 		igt_assert(igt_hotplug_detected(mon, HOTPLUG_TIMEOUT));
-		igt_assert_eq(reprobe_connector(data, port),
+		igt_assert_eq(update_connector(data, port, false),
 			      DRM_MODE_DISCONNECTED);
 	}
 
@@ -204,7 +206,7 @@ test_edid_read(data_t *data, struct chamelium_port *port,
 
 	chamelium_port_set_edid(data->chamelium, port, edid_id);
 	chamelium_plug(data->chamelium, port);
-	wait_for_connector(data, port, DRM_MODE_CONNECTED);
+	wait_for_connector(data, port, DRM_MODE_CONNECTED, true);
 
 	igt_assert(kmstest_get_property(data->drm_fd, connector->connector_id,
 					DRM_MODE_OBJECT_CONNECTOR, "EDID", NULL,
@@ -247,13 +249,13 @@ try_suspend_resume_hpd(data_t *data, struct chamelium_port *port,
 
 	igt_assert(igt_hotplug_detected(mon, HOTPLUG_TIMEOUT));
 	if (port) {
-		igt_assert_eq(reprobe_connector(data, port), connected ?
+		igt_assert_eq(update_connector(data, port, false), connected ?
 			      DRM_MODE_DISCONNECTED : DRM_MODE_CONNECTED);
 	} else {
 		for (p = 0; p < data->port_count; p++) {
 			port = data->ports[p];
-			igt_assert_eq(reprobe_connector(data, port), connected ?
-				      DRM_MODE_DISCONNECTED :
+			igt_assert_eq(update_connector(data, port, false),
+				      connected ? DRM_MODE_DISCONNECTED :
 				      DRM_MODE_CONNECTED);
 		}
 
@@ -317,7 +319,7 @@ test_suspend_resume_edid_change(data_t *data, struct chamelium_port *port,
 	/* First plug in the port */
 	chamelium_port_set_edid(data->chamelium, port, edid_id);
 	chamelium_plug(data->chamelium, port);
-	wait_for_connector(data, port, DRM_MODE_CONNECTED);
+	wait_for_connector(data, port, DRM_MODE_CONNECTED, true);
 
 	igt_flush_hotplugs(mon);
 
@@ -352,7 +354,7 @@ prepare_output(data_t *data,
 	chamelium_port_set_edid(data->chamelium, port, data->edid_id);
 
 	chamelium_plug(data->chamelium, port);
-	wait_for_connector(data, port, DRM_MODE_CONNECTED);
+	wait_for_connector(data, port, DRM_MODE_CONNECTED, true);
 
 	igt_display_init(display, data->drm_fd);
 	output = igt_output_from_connector(display, connector);
@@ -590,7 +592,7 @@ test_hpd_without_ddc(data_t *data, struct chamelium_port *port)
 	chamelium_plug(data->chamelium, port);
 
 	igt_assert(igt_hotplug_detected(mon, HOTPLUG_TIMEOUT));
-	igt_assert_eq(reprobe_connector(data, port), DRM_MODE_CONNECTED);
+	igt_assert_eq(update_connector(data, port, false), DRM_MODE_CONNECTED);
 
 	igt_cleanup_hotplug(mon);
 }
-- 
2.13.2

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