git.ipfire.org Git - thirdparty/openwrt.git/blob

   1 From da72cd31a92730881deb46a7796d3b2674345462 Mon Sep 17 00:00:00 2001
   2 From: Naushir Patuck <naush@raspberrypi.com>
   3 Date: Mon, 29 Jan 2024 09:02:03 +0000
   4 Subject: [PATCH 0858/1085] drivers: media: pisp_be: Update seqeuence numbers
   5  of the buffers
   6
   7 Add a framebuffer sequence counter and increment on every completed job.
   8 This counter is then used to update the VB2 buffer sequence count before
   9 calling vb2_buffer_done().
  10
  11 Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
  12 ---
  13  drivers/media/platform/raspberrypi/pisp_be/pisp_be.c | 5 +++++
  14  1 file changed, 5 insertions(+)
  15
  16 --- a/drivers/media/platform/raspberrypi/pisp_be/pisp_be.c
  17 +++ b/drivers/media/platform/raspberrypi/pisp_be/pisp_be.c
  18 @@ -203,6 +203,7 @@ struct pispbe_node_group {
  19         struct media_pad pad[PISPBE_NUM_NODES]; /* output pads first */
  20         struct pisp_be_tiles_config *config;
  21         dma_addr_t config_dma_addr;
  22 +       unsigned int sequence;
  23  };
  24
  25  /* Records details of the jobs currently running or queued on the h/w. */
  26 @@ -703,10 +704,13 @@ static void pispbe_isr_jobdone(struct pi
  27         for (i = 0; i < PISPBE_NUM_NODES; i++) {
  28                 if (buf[i]) {
  29                         buf[i]->vb.vb2_buf.timestamp = ts;
  30 +                       buf[i]->vb.sequence = job->node_group->sequence;
  31                         vb2_buffer_done(&buf[i]->vb.vb2_buf,
  32                                         VB2_BUF_STATE_DONE);
  33                 }
  34         }
  35 +
  36 +       job->node_group->sequence++;
  37  }
  38
  39  static irqreturn_t pispbe_isr(int irq, void *dev)
  40 @@ -962,6 +966,7 @@ static int pispbe_node_start_streaming(s
  41
  42         spin_lock_irqsave(&pispbe->hw_lock, flags);
  43         node->node_group->streaming_map |=  BIT(node->id);
  44 +       node->node_group->sequence = 0;
  45         spin_unlock_irqrestore(&pispbe->hw_lock, flags);
  46
  47         dev_dbg(pispbe->dev, "%s: for node %s (count %u)\n",