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, 42 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0298-Add-ability-to-export-gpio-used-by-gpio-poweroff.patch b/target/linux/brcm2708/patches-4.14/950-0298-Add-ability-to-export-gpio-used-by-gpio-poweroff.patch
new file mode 100644
index 0000000000..87cad9a300
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0298-Add-ability-to-export-gpio-used-by-gpio-poweroff.patch
@@ -0,0 +1,42 @@
+From 62712a1a87724194500e1786a65578964838f4d8 Mon Sep 17 00:00:00 2001
+From: Nick Bulleid <nedbulleid@fastmail.com>
+Date: Thu, 10 May 2018 21:57:02 +0100
+Subject: [PATCH 298/454] Add ability to export gpio used by gpio-poweroff
+
+Signed-off-by: Nick Bulleid <nedbulleid@fastmail.com>
+---
+ drivers/power/reset/gpio-poweroff.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+--- a/drivers/power/reset/gpio-poweroff.c
++++ b/drivers/power/reset/gpio-poweroff.c
+@@ -50,6 +50,7 @@ static int gpio_poweroff_probe(struct pl
+ 	bool input = false;
+ 	enum gpiod_flags flags;
+ 	bool force = false;
++	bool export = false;
+ 
+ 	/* If a pm_power_off function has already been added, leave it alone */
+ 	force = of_property_read_bool(pdev->dev.of_node, "force");
+@@ -70,6 +71,12 @@ static int gpio_poweroff_probe(struct pl
+ 	if (IS_ERR(reset_gpio))
+ 		return PTR_ERR(reset_gpio);
+ 
++	export = of_property_read_bool(pdev->dev.of_node, "export");
++	if (export) {
++		gpiod_export(reset_gpio, false);
++		gpiod_export_link(&pdev->dev, "poweroff-gpio", reset_gpio);
++	}
++
+ 	pm_power_off = &gpio_poweroff_do_poweroff;
+ 	return 0;
+ }
+@@ -79,6 +86,8 @@ static int gpio_poweroff_remove(struct p
+ 	if (pm_power_off == &gpio_poweroff_do_poweroff)
+ 		pm_power_off = NULL;
+ 
++	gpiod_unexport(reset_gpio);
++
+ 	return 0;
+ }
+