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, 104 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0157-add-gpio-key-overlay-2329.patch b/target/linux/brcm2708/patches-4.14/950-0157-add-gpio-key-overlay-2329.patch
new file mode 100644
index 0000000000..f486ece958
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0157-add-gpio-key-overlay-2329.patch
@@ -0,0 +1,104 @@
+From e8a650fc27bf1e7d858c997fddd9944e6c222260 Mon Sep 17 00:00:00 2001
+From: Aaron Shaw <shawaj@gmail.com>
+Date: Thu, 4 Jan 2018 15:02:16 +0000
+Subject: [PATCH 157/454] add gpio-key overlay (#2329)
+
+An overlay that allows a Linux key to be bound to a GPIO.
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ arch/arm/boot/dts/overlays/README             | 21 ++++++++
+ .../boot/dts/overlays/gpio-key-overlay.dts    | 48 +++++++++++++++++++
+ 3 files changed, 70 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/gpio-key-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -31,6 +31,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	googlevoicehat-soundcard.dtbo \
+ 	gpio-ir.dtbo \
+ 	gpio-ir-tx.dtbo \
++	gpio-key.dtbo \
+ 	gpio-poweroff.dtbo \
+ 	gpio-shutdown.dtbo \
+ 	hifiberry-amp.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -515,6 +515,27 @@ Params: gpio_pin                Output G
+                                 Default is "0" (active-high).
+ 
+ 
++Name:   gpio-key
++Info:   This is a generic overlay for activating GPIO keypresses using
++        the gpio-keys library and this dtoverlay. Multiple keys can be
++        set up using multiple calls to the overlay for configuring
++        additional buttons or joysticks. You can see available keycodes
++        at https://github.com/torvalds/linux/blob/v4.12/include/uapi/
++        linux/input-event-codes.h#L64
++Load:   dtoverlay=gpio-key,<param>=<val>
++Params: gpio                    GPIO pin to trigger on (default 3)
++        active_low              When this is 1 (active low), a falling
++                                edge generates a key down event and a
++                                rising edge generates a key up event.
++                                When this is 0 (active high), this is
++                                reversed. The default is 1 (active low)
++        gpio_pull               Desired pull-up/down state (off, down, up)
++                                Default is "up". Note that the default pin
++                                (GPIO3) has an external pullup
++        label                   Set a label for the key
++        keycode                 Set the key code for the button
++
++
+ Name:   gpio-poweroff
+ Info:   Drives a GPIO high or low on poweroff (including halt). Enabling this
+         overlay will prevent the ability to boot by driving GPIO3 low.
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/gpio-key-overlay.dts
+@@ -0,0 +1,48 @@
++// Definitions for gpio-key module
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2708";
++
++	fragment@0 {
++		// Configure the gpio pin controller
++		target = <&gpio>;
++		__overlay__ {
++			pin_state: button_pins@0 {
++				brcm,pins = <3>; // gpio number
++				brcm,function = <0>; // 0 = input, 1 = output
++				brcm,pull = <2>; // 0 = none, 1 = pull down, 2 = pull up
++			};
++		};
++	};
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			button: button@0 {
++				compatible = "gpio-keys";
++				pinctrl-names = "default";
++				pinctrl-0 = <&pin_state>;
++				status = "okay";
++
++				key: key {
++					linux,code = <116>;
++					gpios = <&gpio 3 1>;
++					label = "KEY_POWER";
++				};
++			};
++		};
++	};
++
++	__overrides__ {
++		gpio =       <&key>,"gpios:4",
++		             <&button>,"reg:0",
++		             <&pin_state>,"brcm,pins:0",
++		             <&pin_state>,"reg:0";
++		label =      <&key>,"label";
++		keycode =    <&key>,"linux,code:0";
++		gpio_pull =  <&pin_state>,"brcm,pull:0";
++		active_low = <&key>,"gpios:8";
++	};
++
++};