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, 46 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-4.19/950-0649-staging-bcm2835-codec-implement-V4L2_CID_MIN_BUFFERS.patch b/target/linux/bcm27xx/patches-4.19/950-0649-staging-bcm2835-codec-implement-V4L2_CID_MIN_BUFFERS.patch
new file mode 100644
index 0000000000..cd19bc2573
--- /dev/null
+++ b/target/linux/bcm27xx/patches-4.19/950-0649-staging-bcm2835-codec-implement-V4L2_CID_MIN_BUFFERS.patch
@@ -0,0 +1,46 @@
+From 1f524b04b040978e2d96380ff40c3e80feba49a5 Mon Sep 17 00:00:00 2001
+From: Chen-Yu Tsai <wens@csie.org>
+Date: Mon, 22 Jul 2019 22:13:30 +0800
+Subject: [PATCH] staging: bcm2835-codec: implement
+ V4L2_CID_MIN_BUFFERS_FOR_CAPTURE
+
+The stateful decoder specification shows an optional step for retrieving
+the miminum number of capture buffers required for the decoder to
+proceed. While not a required parameter, having it makes some
+applications happy.
+
+bcm2835-codec is a little different from other decoder implementations
+in that there is an intermediate format conversion between the hardware
+and V4L2 buffers. The number of capture buffers required is therefore
+independent of the stream and DPB etc.
+
+There are plans to remove the conversion, but it requires a fair amount
+of rework within the firmware. Until that is done, simply return a value
+of 1.
+
+Signed-off-by: Chen-Yu Tsai <wens@csie.org>
+---
+ .../vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c | 12 ++++++++++++
+ 1 file changed, 12 insertions(+)
+
+--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+@@ -2357,6 +2357,18 @@ static int bcm2835_codec_open(struct fil
+ 		}
+ 		ctx->fh.ctrl_handler = hdl;
+ 		v4l2_ctrl_handler_setup(hdl);
++	} else if (dev->role == DECODE) {
++		v4l2_ctrl_handler_init(hdl, 1);
++
++		v4l2_ctrl_new_std(hdl, &bcm2835_codec_ctrl_ops,
++				  V4L2_CID_MIN_BUFFERS_FOR_CAPTURE,
++				  1, 1, 1, 1);
++		if (hdl->error) {
++			rc = hdl->error;
++			goto free_ctrl_handler;
++		}
++		ctx->fh.ctrl_handler = hdl;
++		v4l2_ctrl_handler_setup(hdl);
+ 	}
+ 
+ 	ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init);