[PATCH v2 17/21] staging: media: tegra-video: add syncpts for Tegra20 to struct tegra_vi

Luca Ceresoli
2022-11-28T15:28:10Z

In preparation to implement Tegra20 parallel video capture, add variables
to hold the required syncpt.

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>

---

No changes in v2
---
drivers/staging/media/tegra-video/vi.h | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/tegra-video/vi.h b/drivers/staging/media/tegra-video/vi.h
index 8fadca33bcc9..ba563cd17296 100644
--- a/drivers/staging/media/tegra-video/vi.h
+++ b/drivers/staging/media/tegra-video/vi.h
@@ -117,11 +117,13 @@ struct tegra_vi {
* @vi: Tegra video input device structure
* @frame_start_sp: host1x syncpoint pointer to synchronize programmed capture
* start condition with hardware frame start events through host1x
- * syncpoint counters.
+ * syncpoint counters. (Tegra210)
* @mw_ack_sp: host1x syncpoint pointer to synchronize programmed memory write
* ack trigger condition with hardware memory write done at end of
- * frame through host1x syncpoint counters.
+ * frame through host1x syncpoint counters. (Tegra210)
* @sp_incr_lock: protects cpu syncpoint increment.
+ * @out_sp: host1x syncpoint pointer for frame sync (Tegra20)
+ * @next_out_sp_idx: next expected value for @out_sp (Tegra20)
*
* @kthread_start_capture: kthread to start capture of single frame when
* vb buffer is available. This thread programs VI CSI hardware
@@ -173,6 +175,8 @@ struct tegra_vi_channel {
struct host1x_syncpt *mw_ack_sp[GANG_PORTS_MAX];
/* protects the cpu syncpoint increment */
spinlock_t sp_incr_lock[GANG_PORTS_MAX];
+ struct host1x_syncpt *out_sp;
+ u32 next_out_sp_idx;

struct task_struct *kthread_start_capture;
wait_queue_head_t start_wait;
--
2.34.1