brcm2708: add kernel 4.14 support

Patch generation process:
- rebase rpi/rpi-4.14.y on v4.14.89 from linux-stable
- git format-patch v4.14.89

Patches skipped during rebase:
- lan78xx: Read MAC address from DT if present
- lan78xx: Enable LEDs and auto-negotiation
- Revert "softirq: Let ksoftirqd do its job"
- sc16is7xx: Fix for multi-channel stall
- lan78xx: Ignore DT MAC address if already valid
- lan78xx: Simple patch to prevent some crashes
- tcp_write_queue_purge clears all the SKBs in the write queue
- Revert "lan78xx: Simple patch to prevent some crashes"
- lan78xx: Connect phy early
- Arm: mm: ftrace: Only set text back to ro after kernel has been marked ro
- Revert "Revert "softirq: Let ksoftirqd do its job""
- ASoC: cs4265: SOC_SINGLE register value error fix
- Revert "ASoC: cs4265: SOC_SINGLE register value error fix"
- Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends"
- Revert "Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends""

Patches dropped after rebase:
- net: Add non-mainline source for rtl8192cu wlan
- net: Fix rtl8192cu build errors on other platforms
- brcm: adds support for BCM43341 wifi
- brcmfmac: Mute expected startup 'errors'
- ARM64: Fix build break for RTL8187/RTL8192CU wifi
- ARM64: Enable RTL8187/RTL8192CU wifi in build config
- This is the driver for Sony CXD2880 DVB-T2/T tuner + demodulator
- brcmfmac: add CLM download support
- brcmfmac: request_firmware_direct is quieter
- Sets the BCDC priority to constant 0
- brcmfmac: Disable ARP offloading when promiscuous
- brcmfmac: Avoid possible out-of-bounds read
- brcmfmac: Delete redundant length check
- net: rtl8192cu: Normalize indentation
- net: rtl8192cu: Fix implicit fallthrough warnings
- Revert "Sets the BCDC priority to constant 0"
- media: cxd2880: Bump to match 4.18.y version
- media: cxd2880-spi: Bump to match 4.18.y version
- Revert "mm: alloc_contig: re-allow CMA to compact FS pages"
- Revert "Revert "mm: alloc_contig: re-allow CMA to compact FS pages""
- cxd2880: CXD2880_SPI_DRV should select DVB_CXD2880 with
  MEDIA_SUBDRV_AUTOSELECT
- 950-0421-HID-hid-bigbenff-driver-for-BigBen-Interactive-PS3OF.patch
- 950-0453-Add-hid-bigbenff-to-list-of-have_special_driver-for-.patch

Make I2C built-in instead of modular as in upstream defconfig; also the
easiest way to get MFD_ARIZONA enabled, which is required by
kmod-sound-soc-rpi-cirrus.
Add missing compatible strings from
4.9/960-add-rasbperrypi-compatible.patch, using upstream names for
compute modules.
Add extra patch to enable the LEDs on lan78xx.

Compile-tested: bcm2708, bcm2709, bcm2710 (with CONFIG_ALL_KMODS=y)
Runtime-tested: bcm2708, bcm2710

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

1 files changed, 82 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0404-staging-bcm2835_camera-Ensure-all-buffers-are-return.patch b/target/linux/brcm2708/patches-4.14/950-0404-staging-bcm2835_camera-Ensure-all-buffers-are-return.patch
new file mode 100644
index 0000000000..b2d7b8608a
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0404-staging-bcm2835_camera-Ensure-all-buffers-are-return.patch
@@ -0,0 +1,82 @@
+From 13e015450812772f21c874dd310abe3379b87bb5 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Thu, 28 Jun 2018 15:57:25 +0100
+Subject: [PATCH 404/454] staging: bcm2835_camera: Ensure all buffers are
+ returned on disable
+
+With the recent change to match MMAL and V4L2 buffers there
+is a need to wait for all MMAL buffers to be returned during
+stop_streaming.
+
+Fixes: 9384167 "staging: bcm2835-camera: Remove V4L2/MMAL buffer remapping"
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ .../bcm2835-camera/bcm2835-camera.c              | 16 ++++++++++++++++
+ .../vc04_services/bcm2835-camera/mmal-vchiq.c    |  4 ++++
+ .../vc04_services/bcm2835-camera/mmal-vchiq.h    |  3 +++
+ 3 files changed, 23 insertions(+)
+
+--- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
++++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
+@@ -615,6 +615,7 @@ static void stop_streaming(struct vb2_qu
+ 	int ret;
+ 	unsigned long timeout;
+ 	struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vq);
++	struct vchiq_mmal_port *port = dev->capture.port;
+ 
+ 	v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, "%s: dev:%p\n",
+ 		 __func__, dev);
+@@ -658,6 +659,21 @@ static void stop_streaming(struct vb2_qu
+ 			 ret);
+ 	}
+ 
++	/* wait for all buffers to be returned */
++	while (atomic_read(&port->buffers_with_vpu)) {
++		v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
++			 "%s: Waiting for buffers to be returned - %d outstanding\n",
++			 __func__, atomic_read(&port->buffers_with_vpu));
++		ret = wait_for_completion_timeout(&dev->capture.frame_cmplt,
++						  HZ);
++		if (ret <= 0) {
++			v4l2_err(&dev->v4l2_dev, "%s: Timeout waiting for buffers to be returned - %d outstanding\n",
++				 __func__,
++				 atomic_read(&port->buffers_with_vpu));
++			break;
++		}
++	}
++
+ 	if (disable_camera(dev) < 0)
+ 		v4l2_err(&dev->v4l2_dev, "Failed to disable camera\n");
+ }
+--- a/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c
++++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c
+@@ -318,6 +318,8 @@ static void buffer_work_cb(struct work_s
+ 	struct mmal_msg_context *msg_context =
+ 		container_of(work, struct mmal_msg_context, u.bulk.work);
+ 
++	atomic_dec(&msg_context->u.bulk.port->buffers_with_vpu);
++
+ 	msg_context->u.bulk.port->buffer_cb(msg_context->u.bulk.instance,
+ 					    msg_context->u.bulk.port,
+ 					    msg_context->u.bulk.status,
+@@ -461,6 +463,8 @@ buffer_from_host(struct vchiq_mmal_insta
+ 	INIT_WORK(&msg_context->u.bulk.buffer_to_host_work,
+ 		  buffer_to_host_work_cb);
+ 
++	atomic_inc(&port->buffers_with_vpu);
++
+ 	/* prep the buffer from host message */
+ 	memset(&m, 0xbc, sizeof(m));	/* just to make debug clearer */
+ 
+--- a/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h
++++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h
+@@ -75,6 +75,9 @@ struct vchiq_mmal_port {
+ 	struct list_head buffers;
+ 	/* lock to serialise adding and removing buffers from list */
+ 	spinlock_t slock;
++
++	/* Count of buffers the VPU has yet to return */
++	atomic_t buffers_with_vpu;
+ 	/* callback on buffer completion */
+ 	vchiq_mmal_buffer_cb buffer_cb;
+ 	/* callback context */