[igt-dev] [PATCH i-g-t] lib/pm: Increase snd module probe timeout to 10s

[Chris Wilson]

5s is often not enough for the sound module to finish loading, so bump
the timeout to 10s. For fun, poll quicker over the 1s!

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Imre Deak <imre.deak at intel.linux.com>
---
 lib/igt_pm.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lib/igt_pm.c b/lib/igt_pm.c
index e86fa4a40..615463a08 100644
--- a/lib/igt_pm.c
+++ b/lib/igt_pm.c
@@ -258,12 +258,15 @@ void igt_pm_enable_audio_runtime_pm(void)
 	if (__igt_pm_audio_runtime_power_save[0])
 		return;
 
-	for (int count = 0; count < 5; count++) {
+	for (int count = 0; count < 110; count++) {
 		if (!__igt_pm_enable_audio_runtime_pm())
 			return;
 
 		/* modprobe(sna-hda-intel) acts async so poll for sysfs */
-		sleep(1);
+		if (count < 100)
+			usleep(10 * 1000); /* poll at 10ms for the first 1s */
+		else
+			sleep(1);
 	}
 
 	err = __igt_pm_enable_audio_runtime_pm();
-- 
2.19.0.rc1