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, 141 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0292-net-mdiobus-add-unlocked-accessors.patch b/target/linux/brcm2708/patches-4.14/950-0292-net-mdiobus-add-unlocked-accessors.patch
new file mode 100644
index 0000000000..5aec47e604
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0292-net-mdiobus-add-unlocked-accessors.patch
@@ -0,0 +1,141 @@
+From b2b8b06f18281c637da274b18e330bc52351637e Mon Sep 17 00:00:00 2001
+From: Russell King <rmk+kernel@armlinux.org.uk>
+Date: Tue, 2 Jan 2018 10:58:27 +0000
+Subject: [PATCH 292/454] net: mdiobus: add unlocked accessors
+
+commit 34dc08e4be208539b7c4aa8154a610e1736705e8 upstream.
+
+Add unlocked versions of the bus accessors, which allows access to the
+bus with all the tracing. These accessors validate that the bus mutex
+is held, which is a basic requirement for all mii bus accesses.
+
+Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
+Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/phy/mdio_bus.c | 65 +++++++++++++++++++++++++++++++-------
+ include/linux/mdio.h       |  3 ++
+ 2 files changed, 56 insertions(+), 12 deletions(-)
+
+--- a/drivers/net/phy/mdio_bus.c
++++ b/drivers/net/phy/mdio_bus.c
+@@ -493,6 +493,55 @@ struct phy_device *mdiobus_scan(struct m
+ EXPORT_SYMBOL(mdiobus_scan);
+ 
+ /**
++ * __mdiobus_read - Unlocked version of the mdiobus_read function
++ * @bus: the mii_bus struct
++ * @addr: the phy address
++ * @regnum: register number to read
++ *
++ * Read a MDIO bus register. Caller must hold the mdio bus lock.
++ *
++ * NOTE: MUST NOT be called from interrupt context.
++ */
++int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum)
++{
++	int retval;
++
++	WARN_ON_ONCE(!mutex_is_locked(&bus->mdio_lock));
++
++	retval = bus->read(bus, addr, regnum);
++
++	trace_mdio_access(bus, 1, addr, regnum, retval, retval);
++
++	return retval;
++}
++EXPORT_SYMBOL(__mdiobus_read);
++
++/**
++ * __mdiobus_write - Unlocked version of the mdiobus_write function
++ * @bus: the mii_bus struct
++ * @addr: the phy address
++ * @regnum: register number to write
++ * @val: value to write to @regnum
++ *
++ * Write a MDIO bus register. Caller must hold the mdio bus lock.
++ *
++ * NOTE: MUST NOT be called from interrupt context.
++ */
++int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val)
++{
++	int err;
++
++	WARN_ON_ONCE(!mutex_is_locked(&bus->mdio_lock));
++
++	err = bus->write(bus, addr, regnum, val);
++
++	trace_mdio_access(bus, 0, addr, regnum, val, err);
++
++	return err;
++}
++EXPORT_SYMBOL(__mdiobus_write);
++
++/**
+  * mdiobus_read_nested - Nested version of the mdiobus_read function
+  * @bus: the mii_bus struct
+  * @addr: the phy address
+@@ -512,11 +561,9 @@ int mdiobus_read_nested(struct mii_bus *
+ 	BUG_ON(in_interrupt());
+ 
+ 	mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
+-	retval = bus->read(bus, addr, regnum);
++	retval = __mdiobus_read(bus, addr, regnum);
+ 	mutex_unlock(&bus->mdio_lock);
+ 
+-	trace_mdio_access(bus, 1, addr, regnum, retval, retval);
+-
+ 	return retval;
+ }
+ EXPORT_SYMBOL(mdiobus_read_nested);
+@@ -538,11 +585,9 @@ int mdiobus_read(struct mii_bus *bus, in
+ 	BUG_ON(in_interrupt());
+ 
+ 	mutex_lock(&bus->mdio_lock);
+-	retval = bus->read(bus, addr, regnum);
++	retval = __mdiobus_read(bus, addr, regnum);
+ 	mutex_unlock(&bus->mdio_lock);
+ 
+-	trace_mdio_access(bus, 1, addr, regnum, retval, retval);
+-
+ 	return retval;
+ }
+ EXPORT_SYMBOL(mdiobus_read);
+@@ -568,11 +613,9 @@ int mdiobus_write_nested(struct mii_bus
+ 	BUG_ON(in_interrupt());
+ 
+ 	mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
+-	err = bus->write(bus, addr, regnum, val);
++	err = __mdiobus_write(bus, addr, regnum, val);
+ 	mutex_unlock(&bus->mdio_lock);
+ 
+-	trace_mdio_access(bus, 0, addr, regnum, val, err);
+-
+ 	return err;
+ }
+ EXPORT_SYMBOL(mdiobus_write_nested);
+@@ -595,11 +638,9 @@ int mdiobus_write(struct mii_bus *bus, i
+ 	BUG_ON(in_interrupt());
+ 
+ 	mutex_lock(&bus->mdio_lock);
+-	err = bus->write(bus, addr, regnum, val);
++	err = __mdiobus_write(bus, addr, regnum, val);
+ 	mutex_unlock(&bus->mdio_lock);
+ 
+-	trace_mdio_access(bus, 0, addr, regnum, val, err);
+-
+ 	return err;
+ }
+ EXPORT_SYMBOL(mdiobus_write);
+--- a/include/linux/mdio.h
++++ b/include/linux/mdio.h
+@@ -257,6 +257,9 @@ static inline u16 ethtool_adv_to_mmd_eee
+ 	return reg;
+ }
+ 
++int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
++int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
++
+ int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
+ int mdiobus_read_nested(struct mii_bus *bus, int addr, u32 regnum);
+ int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);