bcm27xx: update 5.4 patches from RPi foundation

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 69 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0501-media-v4l2-mem2mem-add-new_frame-detection.patch b/target/linux/bcm27xx/patches-5.4/950-0501-media-v4l2-mem2mem-add-new_frame-detection.patch
new file mode 100644
index 0000000000..3c777922f1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0501-media-v4l2-mem2mem-add-new_frame-detection.patch
@@ -0,0 +1,69 @@
+From 1d55acac432983ad8301f5430c42ac549b4b4c6f Mon Sep 17 00:00:00 2001
+From: Hans Verkuil <hverkuil-cisco@xs4all.nl>
+Date: Fri, 11 Oct 2019 06:32:44 -0300
+Subject: [PATCH] media: v4l2-mem2mem: add new_frame detection
+
+Commit f07602ac388723233e9e3c5a05b54baf34e0a3e9 upstream.
+
+Drivers that support VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF
+typically want to know if a new frame is started (i.e. the first
+slice is about to be processed). Add a new_frame bool to v4l2_m2m_ctx
+and set it accordingly.
+
+Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
+Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
+---
+ drivers/media/v4l2-core/v4l2-mem2mem.c | 11 +++++++++--
+ include/media/v4l2-mem2mem.h           |  7 +++++++
+ 2 files changed, 16 insertions(+), 2 deletions(-)
+
+--- a/drivers/media/v4l2-core/v4l2-mem2mem.c
++++ b/drivers/media/v4l2-core/v4l2-mem2mem.c
+@@ -319,8 +319,10 @@ static void __v4l2_m2m_try_queue(struct
+ 		goto job_unlock;
+ 	}
+ 
+-	if (src && dst &&
+-	    dst->is_held && dst->vb2_buf.copied_timestamp &&
++	m2m_ctx->new_frame = true;
++
++	if (src && dst && dst->is_held &&
++	    dst->vb2_buf.copied_timestamp &&
+ 	    dst->vb2_buf.timestamp != src->vb2_buf.timestamp) {
+ 		dst->is_held = false;
+ 		v4l2_m2m_dst_buf_remove(m2m_ctx);
+@@ -333,6 +335,11 @@ static void __v4l2_m2m_try_queue(struct
+ 		}
+ 	}
+ 
++	if (src && dst && (m2m_ctx->cap_q_ctx.q.subsystem_flags &
++			   VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF))
++		m2m_ctx->new_frame = !dst->vb2_buf.copied_timestamp ||
++			dst->vb2_buf.timestamp != src->vb2_buf.timestamp;
++
+ 	if (m2m_dev->m2m_ops->job_ready
+ 		&& (!m2m_dev->m2m_ops->job_ready(m2m_ctx->priv))) {
+ 		dprintk("Driver not ready\n");
+--- a/include/media/v4l2-mem2mem.h
++++ b/include/media/v4l2-mem2mem.h
+@@ -75,6 +75,11 @@ struct v4l2_m2m_queue_ctx {
+  * struct v4l2_m2m_ctx - Memory to memory context structure
+  *
+  * @q_lock: struct &mutex lock
++ * @new_frame: valid in the device_run callback: if true, then this
++ *		starts a new frame; if false, then this is a new slice
++ *		for an existing frame. This is always true unless
++ *		V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF is set, which
++ *		indicates slicing support.
+  * @m2m_dev: opaque pointer to the internal data to handle M2M context
+  * @cap_q_ctx: Capture (output to memory) queue context
+  * @out_q_ctx: Output (input from memory) queue context
+@@ -91,6 +96,8 @@ struct v4l2_m2m_ctx {
+ 	/* optional cap/out vb2 queues lock */
+ 	struct mutex			*q_lock;
+ 
++	bool				new_frame;
++
+ 	/* internal use only */
+ 	struct v4l2_m2m_dev		*m2m_dev;
+