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Subject: staging: media: tegra-video: add syncpts for Tegra20 to struct tegra_vi Author: Luca Ceresoli <luca.ceres...@bootlin.com> Date: Tue Apr 18 10:00:51 2023 +0200 In preparation to implement Tegra20 parallel video capture, add a variable to hold the required syncpt and document all the syncpt variables. Signed-off-by: Luca Ceresoli <luca.ceres...@bootlin.com> Reviewed-by: Dmitry Osipenko <dig...@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl> drivers/staging/media/tegra-video/vi.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) --- diff --git a/drivers/staging/media/tegra-video/vi.h b/drivers/staging/media/tegra-video/vi.h index dfb5870b1411..02f940f2e2eb 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 (On Tegra20 used for the + * OUT_1 syncpt) * @sp_incr_lock: protects cpu syncpoint increment. + * @next_out_sp_idx: next expected value for mw_ack_sp[0], i.e. OUT_1 (Tegra20) * * @kthread_start_capture: kthread to start capture of single frame when * vb buffer is available. This thread programs VI CSI hardware @@ -175,6 +177,7 @@ 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]; + u32 next_out_sp_idx; struct task_struct *kthread_start_capture; wait_queue_head_t start_wait; _______________________________________________ linuxtv-commits mailing list linuxtv-commits@linuxtv.org https://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits