[igt-dev] [PATCH i-g-t] lib/igt_kms: Improve connector probing in igt_display_init(), v2.

[Maarten Lankhorst]

Only do a full probe when the initial connector status is unknown, and
otherwise skip it. This should speed up kms tests ever so slightly.

Also set pipe to PIPE_NONE for igt_output_refresh(), to make the
connector info slightly more accurate.

Changes since v1:
- Instead of a force_reprobe tristate, only force reprobe from
  igt_display_init() when an unknown connection is found.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
Cc: Arkadiusz Hiler <arkadiusz.hiler at intel.com>
---
 lib/igt_kms.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index 2b81cabb05d8..19d650a8dcf8 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -1955,11 +1955,17 @@ void igt_display_init(igt_display_t *display, int drm_fd)
 		 * We don't assign each output a pipe unless
 		 * a pipe is set with igt_output_set_pipe().
 		 */
-		output->force_reprobe = true;
+		output->pending_pipe = PIPE_NONE;
 		output->id = resources->connectors[i];
 		output->display = display;
 
 		igt_output_refresh(output);
+
+		if (output->config.connector &&
+		    output->config.connector->connection == DRM_MODE_UNKNOWNCONNECTION) {
+			output->force_reprobe = true;
+			igt_output_refresh(output);
+		}
 	}
 
 	drmModeFreePlaneResources(plane_resources);
-- 
2.16.3