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, 75 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0158-add-additional-overrides-to-rotary-encoder-overlay-2.patch b/target/linux/brcm2708/patches-4.14/950-0158-add-additional-overrides-to-rotary-encoder-overlay-2.patch
new file mode 100644
index 0000000000..003af7d932
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0158-add-additional-overrides-to-rotary-encoder-overlay-2.patch
@@ -0,0 +1,75 @@
+From 8cf805e57fa5cf4c872883968def037cd7c903cc Mon Sep 17 00:00:00 2001
+From: Aaron Shaw <shawaj@gmail.com>
+Date: Fri, 5 Jan 2018 15:08:37 +0000
+Subject: [PATCH 158/454] add additional overrides to rotary-encoder overlay
+ (#2334)
+
+---
+ arch/arm/boot/dts/overlays/README             | 23 +++++++++++++++++++
+ .../dts/overlays/rotary-encoder-overlay.dts   | 18 +++++++++++----
+ 2 files changed, 36 insertions(+), 5 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1331,6 +1331,29 @@ Params: rotary0_pin_a           GPIO con
+                                 (default 4).
+         rotary0_pin_b           GPIO connected to rotary encoder channel B
+                                 (default 17).
++        relative_axis           register a relative axis rather than an
++                                absolute one. Relative axis will only
++                                generate +1/-1 events on the input device,
++                                hence no steps need to be passed.
++        linux_axis              the input subsystem axis to map to this
++                                rotary encoder. Defaults to 0 (ABS_X / REL_X)
++        rollover                Automatic rollover when the rotary value
++                                becomes greater than the specified steps or
++                                smaller than 0. For absolute axis only.
++        steps-per-period        Number of steps (stable states) per period.
++                                The values have the following meaning:
++                                1: Full-period mode (default)
++                                2: Half-period mode
++                                4: Quarter-period mode
++        steps                   Number of steps in a full turnaround of the
++                                encoder. Only relevant for absolute axis.
++                                Defaults to 24 which is a typical value for
++                                such devices.
++        wakeup                  Boolean, rotary encoder can wake up the
++                                system.
++        encoding                String, the method used to encode steps.
++                                Supported are "gray" (the default and more
++                                common) and "binary".
+ 
+ 
+ Name:   rpi-backlight
+--- a/arch/arm/boot/dts/overlays/rotary-encoder-overlay.dts
++++ b/arch/arm/boot/dts/overlays/rotary-encoder-overlay.dts
+@@ -28,16 +28,24 @@
+ 					gpios = <&gpio 4 0>, <&gpio 17 0>;
+ 					linux,axis = <0>; /* REL_X */
+ 					rotary-encoder,encoding = "gray";
+-					rotary-encoder,relative-axis;
++					rotary-encoder,steps = <24>; /* 24 default */
++					rotary-encoder,steps-per-period = <1>; /* corresponds to full period mode. See README */
+ 			};
+ 		};
+ 
+ 	};  
+ 
+ 	__overrides__ {
+-		rotary0_pin_a = <&rotary0>,"gpios:4",
+-				<&rotary0_pins>,"brcm,pins:0";
+-		rotary0_pin_b = <&rotary0>,"gpios:16",
+-				<&rotary0_pins>,"brcm,pins:4";
++		rotary0_pin_a =     <&rotary0>,"gpios:4",
++		                    <&rotary0_pins>,"brcm,pins:0";
++		rotary0_pin_b =     <&rotary0>,"gpios:16",
++		                    <&rotary0_pins>,"brcm,pins:4";
++		relative_axis =     <&rotary0>,"rotary-encoder,relative-axis?";
++		linux_axis =        <&rotary0>,"linux,axis:0";
++		rollover =          <&rotary0>,"rotary-encoder,rollover?";
++		steps-per-period =  <&rotary0>,"rotary-encoder,steps-per-period:0";
++		steps =             <&rotary0>,"rotary-encoder,steps:0";
++		wakeup =            <&rotary0>,"wakeup-source?";
++		encoding =          <&rotary0>,"rotary-encoder,encoding";
+ 	};  
+ };