target/linux/bcm27xx/patches-5.4/950-0975-staging-bcm2835-codec-Use-a-define-the-completion-ti.patch

   1 From 7ad713e695d67b78b3cb69927d099a29593444b1 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Wed, 30 Sep 2020 12:12:32 +0100
   4 Subject: [PATCH] staging: bcm2835-codec: Use a define the completion
   5  timeout
   6
   7 Hiding a use of "HZ" as a timeout is a little nasty.
   8
   9 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  10 ---
  11  .../vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c        | 6 +++++-
  12  1 file changed, 5 insertions(+), 1 deletion(-)
  13
  14 --- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
  15 +++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
  16 @@ -89,6 +89,9 @@ static const char * const components[] =
  17         "ril.isp",
  18  };
  19
  20 +/* Timeout for stop_streaming to allow all buffers to return */
  21 +#define COMPLETE_TIMEOUT (2 * HZ)
  22 +
  23  #define MIN_W          32
  24  #define MIN_H          32
  25  #define MAX_W          1920
  26 @@ -2366,7 +2369,8 @@ static void bcm2835_codec_stop_streaming
  27         while (atomic_read(&port->buffers_with_vpu)) {
  28                 v4l2_dbg(1, debug, &ctx->dev->v4l2_dev, "%s: Waiting for buffers to be returned - %d outstanding\n",
  29                          __func__, atomic_read(&port->buffers_with_vpu));
  30 -               ret = wait_for_completion_timeout(&ctx->frame_cmplt, HZ);
  31 +               ret = wait_for_completion_timeout(&ctx->frame_cmplt,
  32 +                                                 COMPLETE_TIMEOUT);
  33                 if (ret <= 0) {
  34                         v4l2_err(&ctx->dev->v4l2_dev, "%s: Timeout waiting for buffers to be returned - %d outstanding\n",
  35                                  __func__,