video: tegra: dc: Tune timestamp wait slack

Reduce the DC driver slack for waiting for timestamps.  This allows
us to wake up more consistently on timestamps smoothing the actual
present cadence of frames.

Bug 1684016

Change-Id: I0a4f7ce29880645a12791a38bb407ae5fa26c60a

Change-Id: Ie36b31eaa626661917577d4c77001d6a61b0f5af
Reviewed-on: http://git-master/r/795999
Signed-off-by: Jonathan McCaffrey <jmccaffrey@nvidia.com>
Reviewed-on: http://git-master/r/806154
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Mitch Luban <mluban@nvidia.com>

diff --git a/drivers/video/tegra/dc/ext/dev.c b/drivers/video/tegra/dc/ext/dev.c
index e7e801ee013020da6c57f9e3eeb42045abc59647..6360baa278edc8ed89bfadf03213e440e9923cb9 100644 (file)
--- a/drivers/video/tegra/dc/ext/dev.c
+++ b/drivers/video/tegra/dc/ext/dev.c
@@ -46,7 +46,7 @@
 #endif
 
 #define TEGRA_DC_TS_MAX_DELAY_US 1000000
-#define TEGRA_DC_TS_SLACK_US 2000
+#define TEGRA_DC_TS_SLACK_US 100
 
 #ifdef CONFIG_COMPAT
 /* compat versions that happen to be the same size as the uapi version. */