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, 88 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0014-spi-bcm2835-Remove-unused-code.patch b/target/linux/brcm2708/patches-4.14/950-0014-spi-bcm2835-Remove-unused-code.patch
new file mode 100644
index 0000000000..601de428f5
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0014-spi-bcm2835-Remove-unused-code.patch
@@ -0,0 +1,88 @@
+From 538bc2e4d22633d87f2e4689edfd1f313baf61ab Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 8 Nov 2016 21:35:38 +0000
+Subject: [PATCH 014/454] spi-bcm2835: Remove unused code
+
+---
+ drivers/spi/spi-bcm2835.c | 61 ---------------------------------------
+ 1 file changed, 61 deletions(-)
+
+--- a/drivers/spi/spi-bcm2835.c
++++ b/drivers/spi/spi-bcm2835.c
+@@ -679,17 +679,8 @@ static void bcm2835_spi_set_cs(struct sp
+ 	bcm2835_wr(bs, BCM2835_SPI_CS, cs);
+ }
+ 
+-static int chip_match_name(struct gpio_chip *chip, void *data)
+-{
+-	return !strcmp(chip->label, data);
+-}
+-
+ static int bcm2835_spi_setup(struct spi_device *spi)
+ {
+-	int err;
+-	struct gpio_chip *chip;
+-	struct device_node *pins;
+-	u32 pingroup_index;
+ 	/*
+ 	 * sanity checking the native-chipselects
+ 	 */
+@@ -707,58 +698,6 @@ static int bcm2835_spi_setup(struct spi_
+ 		return -EINVAL;
+ 	}
+ 
+-#if 0
+-	/* now translate native cs to GPIO */
+-	/* first look for chip select pins in the devices pin groups */
+-	for (pingroup_index = 0;
+-	     (pins = of_parse_phandle(spi->master->dev.of_node,
+-				     "pinctrl-0",
+-				      pingroup_index)) != 0;
+-	     pingroup_index++) {
+-		u32 pin;
+-		u32 pin_index;
+-		for (pin_index = 0;
+-		     of_property_read_u32_index(pins,
+-						"brcm,pins",
+-						pin_index,
+-						&pin) == 0;
+-		     pin_index++) {
+-			if (((spi->chip_select == 0) &&
+-			     ((pin == 8) || (pin == 36) || (pin == 46))) ||
+-			    ((spi->chip_select == 1) &&
+-			     ((pin == 7) || (pin == 35)))) {
+-				spi->cs_gpio = pin;
+-				break;
+-			}
+-		}
+-		of_node_put(pins);
+-	}
+-	/* if that fails, assume GPIOs 7-11 are used */
+-	if (!gpio_is_valid(spi->cs_gpio) ) {
+-		/* get the gpio chip for the base */
+-		chip = gpiochip_find("pinctrl-bcm2835", chip_match_name);
+-		if (!chip)
+-			return 0;
+-
+-		/* and calculate the real CS */
+-		spi->cs_gpio = chip->base + 8 - spi->chip_select;
+-	}
+-
+-	/* and set up the "mode" and level */
+-	dev_info(&spi->dev, "setting up native-CS%i as GPIO %i\n",
+-		 spi->chip_select, spi->cs_gpio);
+-
+-	/* set up GPIO as output and pull to the correct level */
+-	err = gpio_direction_output(spi->cs_gpio,
+-				    (spi->mode & SPI_CS_HIGH) ? 0 : 1);
+-	if (err) {
+-		dev_err(&spi->dev,
+-			"could not set CS%i gpio %i as output: %i",
+-			spi->chip_select, spi->cs_gpio, err);
+-		return err;
+-	}
+-#endif
+-
+ 	return 0;
+ }
+