brcm2708: rename target to bcm27xx

This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Despite, since subtargets range from bcm2708 to bcm2711, it seems
appropriate to use bcm27xx instead of bcm2708 (again, as already done
for BOARDNAME).

This also renames the packages brcm2708-userland and brcm2708-gpu-fw.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 38 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-4.19/950-0222-staging-bcm2835-camera-Ensure-timestamps-never-go-ba.patch b/target/linux/bcm27xx/patches-4.19/950-0222-staging-bcm2835-camera-Ensure-timestamps-never-go-ba.patch
new file mode 100644
index 0000000000..802ff8b33f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-4.19/950-0222-staging-bcm2835-camera-Ensure-timestamps-never-go-ba.patch
@@ -0,0 +1,38 @@
+From 0d0b7a58ab065f72ffa55fbc7ab5436628694919 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Tue, 24 Jul 2018 12:08:29 +0100
+Subject: [PATCH] staging: bcm2835-camera: Ensure timestamps never go
+ backwards.
+
+There is an awkward situation with H264 header bytes. Currently
+they are returned with a PTS of 0 because they aren't associated
+with a timestamped frame to encode. These are handled by either
+returning the timestamp of the last buffer to have been received,
+or in the case of the first buffer the timestamp taken at
+start_streaming.
+This results in a race where the current frame may have started
+before we take the start time, which results in the first encoded
+frame having an earlier timestamp than the header bytes.
+
+Ensure that we never return a negative delta to the user by checking
+against the previous timestamp.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ .../staging/vc04_services/bcm2835-camera/bcm2835-camera.c    | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
++++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
+@@ -393,6 +393,11 @@ static void buffer_cb(struct vchiq_mmal_
+ 			 ktime_to_ns(dev->capture.kernel_start_ts),
+ 			 dev->capture.vc_start_timestamp, pts,
+ 			 ktime_to_ns(timestamp));
++		if (timestamp < dev->capture.last_timestamp) {
++			v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
++				 "Negative delta - using last time\n");
++			timestamp = dev->capture.last_timestamp;
++		}
+ 		buf->vb.vb2_buf.timestamp = ktime_to_ns(timestamp);
+ 	} else {
+ 		if (dev->capture.last_timestamp) {