[igt-dev] [PATCH] [i-g-t] lib/igt_amd: add delay waiting for hotplug complete

[Hersen Wu]

when run amd tests, amd_hotplug, amd_link_setings, in patch,
amd_link_settings be skipped. debugfs_hpd_trigger requests
kernel to generate hot plug event, but not wait for process
finish.it takes time for kernel and user mode components to
complete process for hot plug.

Signed-off-by: Hersen Wu <hersenxs.wu at amd.com>
---
 lib/igt_amd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/igt_amd.c b/lib/igt_amd.c
index bef9c193..09923101 100644
--- a/lib/igt_amd.c
+++ b/lib/igt_amd.c
@@ -799,6 +799,8 @@ int igt_amd_trigger_hotplug(int drm_fd, char *connector_name)
         wr_len = write(hpd_fd, enable_hpd, strlen(enable_hpd));
         close(hpd_fd);
         igt_assert_eq(wr_len, strlen(enable_hpd));
+	/* wait for hotplug process complete by kernel and user mode components */
+	sleep(30);
 
         return 0;
 }
-- 
2.25.1