diff mbox series

[v2,10/34] staging: mmal-vchiq: Make timeout a defined parameter

Message ID 20200504092611.9798-11-laurent.pinchart@ideasonboard.com
State New
Headers show
Series Drivers for the BCM283x CSI-2/CCP2 receiver and ISP | expand

Commit Message

Laurent Pinchart May 4, 2020, 9:25 a.m. UTC 
From: Dave Stevenson <dave.stevenson@raspberrypi.org>

The timeout period for VPU communications is a useful thing
to extend when debugging.
Set it via a define, rather than a magic number buried in the code.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
---
 drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
index 1ac27755df51..12c2f86b02ad 100644
--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
@@ -38,6 +38,12 @@ 
  */
 #define VCHIQ_MMAL_MAX_COMPONENTS 64
 
+/*
+ * Timeout for synchronous msg responses in seconds.
+ * Helpful to increase this if stopping in the VPU debugger.
+ */
+#define SYNC_MSG_TIMEOUT       3
+
 /*#define FULL_MSG_DUMP 1*/
 
 #ifdef DEBUG
@@ -686,7 +692,7 @@  static int send_synchronous_mmal_msg(struct vchiq_mmal_instance *instance,
 	}
 
 	timeout = wait_for_completion_timeout(&msg_context->u.sync.cmplt,
-					      3 * HZ);
+					      SYNC_MSG_TIMEOUT * HZ);
 	if (timeout == 0) {
 		pr_err("timed out waiting for sync completion\n");
 		ret = -ETIME;