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, 78 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0285-Reduce-log-spam-when-mailbox-call-not-implemented.patch b/target/linux/brcm2708/patches-4.14/950-0285-Reduce-log-spam-when-mailbox-call-not-implemented.patch
new file mode 100644
index 0000000000..0377aac2da
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0285-Reduce-log-spam-when-mailbox-call-not-implemented.patch
@@ -0,0 +1,78 @@
+From 785c44fa278b7dd7a4b96c64321dc43fa2220f7d Mon Sep 17 00:00:00 2001
+From: James Hughes <james.hughes@raspberrypi.org>
+Date: Fri, 27 Apr 2018 10:13:35 +0100
+Subject: [PATCH 285/454] Reduce log spam when mailbox call not implemented
+
+This changes the logging message when a mailbox call
+fails to the dev_dbg level. In addition, it fixes the
+low voltage detection logging code so that if the
+mailbox call doies fails, it logs at error level
+and flags so the call is no longer attempted.
+
+Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
+---
+ drivers/firmware/raspberrypi.c | 23 ++++++++++++++++++-----
+ 1 file changed, 18 insertions(+), 5 deletions(-)
+
+--- a/drivers/firmware/raspberrypi.c
++++ b/drivers/firmware/raspberrypi.c
+@@ -151,7 +151,7 @@ int rpi_firmware_property_list(struct rp
+ 		 * error, if there were multiple tags in the request.
+ 		 * But single-tag is the most common, so go with it.
+ 		 */
+-		dev_err(fw->cl.dev, "Request 0x%08x returned status 0x%08x\n",
++		dev_dbg(fw->cl.dev, "Request 0x%08x returned status 0x%08x\n",
+ 			buf[2], buf[1]);
+ 		ret = -EINVAL;
+ 	}
+@@ -204,6 +204,7 @@ EXPORT_SYMBOL_GPL(rpi_firmware_property)
+ 
+ static int rpi_firmware_get_throttled(struct rpi_firmware *fw, u32 *value)
+ {
++	static int old_firmware;
+ 	static ktime_t old_timestamp;
+ 	static u32 old_value;
+ 	u32 new_sticky, old_sticky, new_uv, old_uv;
+@@ -214,6 +215,9 @@ static int rpi_firmware_get_throttled(st
+ 	if (!fw)
+ 		return -EBUSY;
+ 
++	if (old_firmware)
++		return -EINVAL;
++
+ 	/*
+ 	 * We can't run faster than the sticky shift (100ms) since we get
+ 	 * flipping in the sticky bits that are cleared.
+@@ -232,8 +236,17 @@ static int rpi_firmware_get_throttled(st
+ 
+ 	ret = rpi_firmware_property(fw, RPI_FIRMWARE_GET_THROTTLED,
+ 				    value, sizeof(*value));
+-	if (ret)
++
++	if (ret) {
++		/* If the mailbox call fails once, then it will continue to
++		 * fail in the future, so no point in continuing to call it
++		 * Usual failure reason is older firmware
++		 */
++		old_firmware = 1;
++		dev_err(fw->cl.dev, "Get Throttled mailbox call failed");
++
+ 		return ret;
++	}
+ 
+ 	new_sticky = *value >> 16;
+ 	old_sticky = old_value >> 16;
+@@ -270,10 +283,10 @@ static void get_throttled_poll(struct wo
+ 	int ret;
+ 
+ 	ret = rpi_firmware_get_throttled(fw, &dummy);
+-	if (ret)
+-		pr_debug("%s: Failed to read value (%d)", __func__, ret);
+ 
+-	schedule_delayed_work(&fw->get_throttled_poll_work, 2 * HZ);
++	/* Only reschedule if we are getting valid responses */
++	if (!ret)
++		schedule_delayed_work(&fw->get_throttled_poll_work, 2 * HZ);
+ }
+ 
+ static ssize_t get_throttled_show(struct device *dev,