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, 50 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0254-Fix-for-Pisound-s-MIDI-Input-getting-blocked-for-a-w.patch b/target/linux/brcm2708/patches-4.14/950-0254-Fix-for-Pisound-s-MIDI-Input-getting-blocked-for-a-w.patch
new file mode 100644
index 0000000000..9d77f45a93
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0254-Fix-for-Pisound-s-MIDI-Input-getting-blocked-for-a-w.patch
@@ -0,0 +1,50 @@
+From a845f23bddcb2b0e48e8158bb06b0990c4760e7e Mon Sep 17 00:00:00 2001
+From: Giedrius <giedrius@blokas.io>
+Date: Fri, 16 Mar 2018 18:14:31 +0200
+Subject: [PATCH 254/454] Fix for Pisound's MIDI Input getting blocked for a
+ while in rare cases.
+
+There was a possible race condition which could lead to Input's FIFO queue
+to be underflown, causing high amount of processing in the worker thread for
+some period of time.
+
+Signed-off-by: Giedrius Trainavicius <giedrius@blokas.io>
+---
+ sound/soc/bcm/pisound.c | 12 +++++++-----
+ 1 file changed, 7 insertions(+), 5 deletions(-)
+
+--- a/sound/soc/bcm/pisound.c
++++ b/sound/soc/bcm/pisound.c
+@@ -56,6 +56,12 @@ static const char *pisnd_spi_get_version
+ static int pisnd_midi_init(struct snd_card *card);
+ static void pisnd_midi_uninit(void);
+ 
++enum task_e {
++	TASK_PROCESS = 0,
++};
++
++static void pisnd_schedule_process(enum task_e task);
++
+ #define PISOUND_LOG_PREFIX "pisound: "
+ 
+ #ifdef PISOUND_DEBUG
+@@ -129,7 +135,7 @@ static void pisnd_input_trigger(struct s
+ {
+ 	if (up) {
+ 		pisnd_spi_set_callback(pisnd_midi_recv_callback, substream);
+-		pisnd_midi_recv_callback(substream);
++		pisnd_schedule_process(TASK_PROCESS);
+ 	} else {
+ 		pisnd_spi_set_callback(NULL, NULL);
+ 	}
+@@ -258,10 +264,6 @@ static bool pisnd_spi_has_more(void)
+ 	return gpiod_get_value(data_available);
+ }
+ 
+-enum task_e {
+-	TASK_PROCESS = 0,
+-};
+-
+ static void pisnd_schedule_process(enum task_e task)
+ {
+ 	if (pisnd_spi_device != NULL &&