target/linux/brcm2708/patches-4.19/950-0270-staging-mmal-vchiq-Make-timeout-a-defined-parameter.patch

   1 From 11937ca9b223ffa394f04940b245b3689172537f Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.org>
   3 Date: Mon, 24 Sep 2018 16:57:09 +0100
   4 Subject: [PATCH 270/703] staging: mmal-vchiq: Make timeout a defined parameter
   5
   6 The timeout period for VPU communications is a useful thing
   7 to extend when debugging.
   8 Set it via a define, rather than a magic number buried in the code.
   9
  10 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
  11 ---
  12  drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c | 8 +++++++-
  13  1 file changed, 7 insertions(+), 1 deletion(-)
  14
  15 --- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
  16 +++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
  17 @@ -44,6 +44,12 @@ MODULE_VERSION("0.0.1");
  18   */
  19  #define VCHIQ_MMAL_MAX_COMPONENTS 64
  20
  21 +/*
  22 + * Timeout for synchronous msg responses in seconds.
  23 + * Helpful to increase this if stopping in the VPU debugger.
  24 + */
  25 +#define SYNC_MSG_TIMEOUT       3
  26 +
  27  /*#define FULL_MSG_DUMP 1*/
  28
  29  #ifdef DEBUG
  30 @@ -691,7 +697,7 @@ static int send_synchronous_mmal_msg(str
  31         }
  32
  33         timeout = wait_for_completion_timeout(&msg_context->u.sync.cmplt,
  34 -                                             3 * HZ);
  35 +                                             SYNC_MSG_TIMEOUT * HZ);
  36         if (timeout == 0) {
  37                 pr_err("timed out waiting for sync completion\n");
  38                 ret = -ETIME;