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Message-Id: <20221109141852.729246-20-luca.ceresoli@bootlin.com>
Date: Wed, 9 Nov 2022 15:18:48 +0100
From: luca.ceresoli@...tlin.com
To: David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Thierry Reding <thierry.reding@...il.com>,
Jonathan Hunter <jonathanh@...dia.com>,
Sowjanya Komatineni <skomatineni@...dia.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Hans Verkuil <hverkuil-cisco@...all.nl>,
Dmitry Osipenko <digetx@...il.com>
Cc: Luca Ceresoli <luca.ceresoli@...tlin.com>,
linux-media@...r.kernel.org, linux-tegra@...r.kernel.org,
dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-staging@...ts.linux.dev,
Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
Richard Leitner <richard.leitner@...data.com>
Subject: [PATCH 19/23] staging: media: tegra-video: add syncpts for Tegra20 to struct tegra_vi
From: Luca Ceresoli <luca.ceresoli@...tlin.com>
In preparation to implement Tegra20 parallel video capture, add variables
to hold the required syncpt.
Signed-off-by: Luca Ceresoli <luca.ceresoli@...tlin.com>
---
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
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