[PATCH 19/23] staging: media: tegra-video: add syncpts for Tegra20 to struct tegra_vi

[luca . ceresoli]

From: Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx>

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

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