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, 217 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0381-staging-vc04_services-no-need-to-check-debugfs-retur.patch b/target/linux/brcm2708/patches-4.14/950-0381-staging-vc04_services-no-need-to-check-debugfs-retur.patch
new file mode 100644
index 0000000000..1a8cfd1241
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0381-staging-vc04_services-no-need-to-check-debugfs-retur.patch
@@ -0,0 +1,217 @@
+From 5e4d56448e08a7f4bf39e1b3f4c43916ff74d337 Mon Sep 17 00:00:00 2001
+From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Date: Fri, 1 Jun 2018 13:09:59 +0200
+Subject: [PATCH 381/454] staging: vc04_services: no need to check debugfs
+ return values
+
+commit 0723103f8ba15a019bbcaf6f130d73d05337332f upstream
+
+When calling debugfs functions, there is no need to ever check the
+return value.  The function can work or not, but the code logic should
+never do something different based on this.
+
+Clean up the vchiq_arm code by not caring about the value of debugfs
+calls.  This ends up removing a number of lines of code that are not
+needed.
+
+Cc: Stefan Wahren <stefan.wahren@i2se.com>
+Cc: Kees Cook <keescook@chromium.org>
+Cc: Dan Carpenter <dan.carpenter@oracle.com>
+Cc: Arnd Bergmann <arnd@arndb.de>
+Cc: Keerthi Reddy <keerthigd4990@gmail.com>
+Cc: linux-rpi-kernel@lists.infradead.org
+Cc: linux-arm-kernel@lists.infradead.org
+Reviewed-by: Eric Anholt <eric@anholt.net>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ .../interface/vchiq_arm/vchiq_arm.c           |  8 +-
+ .../interface/vchiq_arm/vchiq_debugfs.c       | 73 +++----------------
+ .../interface/vchiq_arm/vchiq_debugfs.h       |  4 +-
+ 3 files changed, 15 insertions(+), 70 deletions(-)
+
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+@@ -1753,7 +1753,7 @@ vchiq_open(struct inode *inode, struct f
+ 		instance->state = state;
+ 		instance->pid = current->tgid;
+ 
+-		(void)vchiq_debugfs_add_instance(instance);
++		vchiq_debugfs_add_instance(instance);
+ 
+ 		sema_init(&instance->insert_event, 0);
+ 		sema_init(&instance->remove_event, 0);
+@@ -3437,9 +3437,7 @@ static int vchiq_probe(struct platform_d
+ 		goto failed_device_create;
+ 
+ 	/* create debugfs entries */
+-	err = vchiq_debugfs_init();
+-	if (err != 0)
+-		goto failed_debugfs_init;
++	vchiq_debugfs_init();
+ 
+ 	vchiq_log_info(vchiq_arm_log_level,
+ 		"vchiq: initialised - version %d (min %d), device %d.%d",
+@@ -3448,8 +3446,6 @@ static int vchiq_probe(struct platform_d
+ 
+ 	return 0;
+ 
+-failed_debugfs_init:
+-	device_destroy(vchiq_class, vchiq_devid);
+ failed_device_create:
+ 	class_destroy(vchiq_class);
+ failed_class_create:
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c
+@@ -160,15 +160,12 @@ static const struct file_operations debu
+ };
+ 
+ /* create an entry under <debugfs>/vchiq/log for each log category */
+-static int vchiq_debugfs_create_log_entries(struct dentry *top)
++static void vchiq_debugfs_create_log_entries(struct dentry *top)
+ {
+ 	struct dentry *dir;
+ 	size_t i;
+-	int ret = 0;
+ 
+ 	dir = debugfs_create_dir("log", vchiq_debugfs_top());
+-	if (!dir)
+-		return -ENOMEM;
+ 	debugfs_info.log_categories = dir;
+ 
+ 	for (i = 0; i < n_log_entries; i++) {
+@@ -179,14 +176,8 @@ static int vchiq_debugfs_create_log_entr
+ 					  debugfs_info.log_categories,
+ 					  levp,
+ 					  &debugfs_log_fops);
+-		if (!dir) {
+-			ret = -ENOMEM;
+-			break;
+-		}
+-
+ 		vchiq_debugfs_log_entries[i].dir = dir;
+ 	}
+-	return ret;
+ }
+ 
+ static int debugfs_usecount_show(struct seq_file *f, void *offset)
+@@ -270,43 +261,22 @@ static const struct file_operations debu
+ };
+ 
+ /* add an instance (process) to the debugfs entries */
+-int vchiq_debugfs_add_instance(VCHIQ_INSTANCE_T instance)
++void vchiq_debugfs_add_instance(VCHIQ_INSTANCE_T instance)
+ {
+ 	char pidstr[16];
+-	struct dentry *top, *use_count, *trace;
++	struct dentry *top;
+ 	struct dentry *clients = vchiq_clients_top();
+ 
+ 	snprintf(pidstr, sizeof(pidstr), "%d",
+ 		 vchiq_instance_get_pid(instance));
+ 
+ 	top = debugfs_create_dir(pidstr, clients);
+-	if (!top)
+-		goto fail_top;
+ 
+-	use_count = debugfs_create_file("use_count",
+-					0444, top,
+-					instance,
+-					&debugfs_usecount_fops);
+-	if (!use_count)
+-		goto fail_use_count;
+-
+-	trace = debugfs_create_file("trace",
+-				    0644, top,
+-				    instance,
+-				    &debugfs_trace_fops);
+-	if (!trace)
+-		goto fail_trace;
++	debugfs_create_file("use_count", 0444, top, instance,
++			    &debugfs_usecount_fops);
++	debugfs_create_file("trace", 0644, top, instance, &debugfs_trace_fops);
+ 
+ 	vchiq_instance_get_debugfs_node(instance)->dentry = top;
+-
+-	return 0;
+-
+-fail_trace:
+-	debugfs_remove(use_count);
+-fail_use_count:
+-	debugfs_remove(top);
+-fail_top:
+-	return -ENOMEM;
+ }
+ 
+ void vchiq_debugfs_remove_instance(VCHIQ_INSTANCE_T instance)
+@@ -316,32 +286,13 @@ void vchiq_debugfs_remove_instance(VCHIQ
+ 	debugfs_remove_recursive(node->dentry);
+ }
+ 
+-
+-int vchiq_debugfs_init(void)
++void vchiq_debugfs_init(void)
+ {
+-	BUG_ON(debugfs_info.vchiq_cfg_dir != NULL);
+-
+ 	debugfs_info.vchiq_cfg_dir = debugfs_create_dir("vchiq", NULL);
+-	if (debugfs_info.vchiq_cfg_dir == NULL)
+-		goto fail;
+-
+ 	debugfs_info.clients = debugfs_create_dir("clients",
+ 				vchiq_debugfs_top());
+-	if (!debugfs_info.clients)
+-		goto fail;
+ 
+-	if (vchiq_debugfs_create_log_entries(vchiq_debugfs_top()) != 0)
+-		goto fail;
+-
+-	return 0;
+-
+-fail:
+-	vchiq_debugfs_deinit();
+-	vchiq_log_error(vchiq_arm_log_level,
+-		"%s: failed to create debugfs directory",
+-		__func__);
+-
+-	return -ENOMEM;
++	vchiq_debugfs_create_log_entries(vchiq_debugfs_top());
+ }
+ 
+ /* remove all the debugfs entries */
+@@ -363,18 +314,16 @@ static struct dentry *vchiq_debugfs_top(
+ 
+ #else /* CONFIG_DEBUG_FS */
+ 
+-int vchiq_debugfs_init(void)
++void vchiq_debugfs_init(void)
+ {
+-	return 0;
+ }
+ 
+ void vchiq_debugfs_deinit(void)
+ {
+ }
+ 
+-int vchiq_debugfs_add_instance(VCHIQ_INSTANCE_T instance)
++void vchiq_debugfs_add_instance(VCHIQ_INSTANCE_T instance)
+ {
+-	return 0;
+ }
+ 
+ void vchiq_debugfs_remove_instance(VCHIQ_INSTANCE_T instance)
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.h
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.h
+@@ -40,11 +40,11 @@ typedef struct vchiq_debugfs_node_struct
+     struct dentry *dentry;
+ } VCHIQ_DEBUGFS_NODE_T;
+ 
+-int vchiq_debugfs_init(void);
++void vchiq_debugfs_init(void);
+ 
+ void vchiq_debugfs_deinit(void);
+ 
+-int vchiq_debugfs_add_instance(VCHIQ_INSTANCE_T instance);
++void vchiq_debugfs_add_instance(VCHIQ_INSTANCE_T instance);
+ 
+ void vchiq_debugfs_remove_instance(VCHIQ_INSTANCE_T instance);
+