brcm2708: rename all patches from raspberrypi git tree to use 950 prefix

Right now all brcm2708 patches are extracted from the non-mainline
raspberrypi/linux git tree. Many of them are hacks and/or are unneeded
in LEDE. Raspberry Pi is getting better and better mainline support so
it would be nice to finally start maintaining patches in a cleaner way:
1) Backport patches accepted in upstream tree
2) Start using upstream drivers
3) Pick only these patches that are needed for more complete support

Handling above tasks requires grouping patches - ideally using the same
prefixes as generic ones. It means we should rename existing patches to
use some high prefix. This will allow e.g. use 0xx for backported code.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Stijn Tintel <stijn@linux-ipv6.be>

1 files changed, 87 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.9/950-0196-BCM2835-V4L2-Ensure-H264-header-bytes-get-a-sensible.patch b/target/linux/brcm2708/patches-4.9/950-0196-BCM2835-V4L2-Ensure-H264-header-bytes-get-a-sensible.patch
new file mode 100644
index 0000000000..df8d4b4a4f
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.9/950-0196-BCM2835-V4L2-Ensure-H264-header-bytes-get-a-sensible.patch
@@ -0,0 +1,87 @@
+From 02ceda02182f6cb538be397b8d8f34b64a254559 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Mon, 13 Feb 2017 11:10:50 +0000
+Subject: [PATCH] BCM2835-V4L2: Ensure H264 header bytes get a sensible
+ timestamp
+
+H264 header come off VC with 0 timestamps, which means they get a
+strange timestamp when processed with VC/kernel start times,
+particularly if used with the inline header option.
+Remember the last frame timestamp and use that if set, or otherwise
+use the kernel start time.
+
+https://github.com/raspberrypi/linux/issues/1836
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/media/platform/bcm2835/bcm2835-camera.c | 30 ++++++++++++++++++++++---
+ drivers/media/platform/bcm2835/bcm2835-camera.h |  2 ++
+ 2 files changed, 29 insertions(+), 3 deletions(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-camera.c
++++ b/drivers/media/platform/bcm2835/bcm2835-camera.c
+@@ -356,8 +356,13 @@ static void buffer_cb(struct vchiq_mmal_
+ 		}
+ 	} else {
+ 		if (dev->capture.frame_count) {
+-			if (dev->capture.vc_start_timestamp != -1 &&
+-			    pts != 0) {
++			if (dev->capture.vc_start_timestamp == -1) {
++				buf->vb.vb2_buf.timestamp = ktime_get_ns();
++				v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
++				 "Buffer time set as current time - %lld",
++				 buf->vb.vb2_buf.timestamp);
++
++			} else if(pts != 0) {
+ 				struct timeval timestamp;
+ 				s64 runtime_us = pts -
+ 				    dev->capture.vc_start_timestamp;
+@@ -390,10 +395,27 @@ static void buffer_cb(struct vchiq_mmal_
+ 				buf->vb.vb2_buf.timestamp = timestamp.tv_sec * 1000000000ULL +
+ 					timestamp.tv_usec * 1000ULL;
+ 			} else {
+-				buf->vb.vb2_buf.timestamp = ktime_get_ns();
++				if (dev->capture.last_timestamp) {
++					buf->vb.vb2_buf.timestamp = dev->capture.last_timestamp;
++					v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
++					 "Buffer time set as last timestamp - %lld",
++					 buf->vb.vb2_buf.timestamp);
++				}
++				else {
++					buf->vb.vb2_buf.timestamp =
++					dev->capture.kernel_start_ts.tv_sec  * 1000000000ULL +
++					dev->capture.kernel_start_ts.tv_usec * 1000ULL;
++					v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
++					 "Buffer time set as start timestamp - %lld",
++					 buf->vb.vb2_buf.timestamp);
++				}
+ 			}
++			dev->capture.last_timestamp = buf->vb.vb2_buf.timestamp;
+ 
+ 			vb2_set_plane_payload(&buf->vb.vb2_buf, 0, length);
++			v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
++				"Buffer has ts %llu",
++				dev->capture.last_timestamp);
+ 			vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
+ 
+ 			if (mmal_flags & MMAL_BUFFER_HEADER_FLAG_EOS &&
+@@ -559,6 +581,8 @@ static int start_streaming(struct vb2_qu
+ 			 "Start time %lld size %d\n",
+ 			 dev->capture.vc_start_timestamp, parameter_size);
+ 
++	dev->capture.last_timestamp = 0;
++
+ 	v4l2_get_timestamp(&dev->capture.kernel_start_ts);
+ 
+ 	/* enable the camera port */
+--- a/drivers/media/platform/bcm2835/bcm2835-camera.h
++++ b/drivers/media/platform/bcm2835/bcm2835-camera.h
+@@ -93,6 +93,8 @@ struct bm2835_mmal_dev {
+ 		s64         vc_start_timestamp;
+ 		/* Kernel start timestamp for streaming */
+ 		struct timeval kernel_start_ts;
++		/* Timestamp of last frame */
++		u64 		last_timestamp;
+ 
+ 		struct vchiq_mmal_port  *port; /* port being used for capture */
+ 		/* camera port being used for capture */