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, 44 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0179-drm-vc4-Reject-HDMI-modes-with-too-high-of-clocks.patch b/target/linux/brcm2708/patches-4.14/950-0179-drm-vc4-Reject-HDMI-modes-with-too-high-of-clocks.patch
new file mode 100644
index 0000000000..bef2811458
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0179-drm-vc4-Reject-HDMI-modes-with-too-high-of-clocks.patch
@@ -0,0 +1,44 @@
+From ee3cf448adf29e8948c40d251f87d87a9817515c Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Wed, 20 Sep 2017 15:59:34 -0700
+Subject: [PATCH 179/454] drm/vc4: Reject HDMI modes with too high of clocks.
+
+Peter Robinson reported issues on Fedora with 4k monitors not having
+their modes filtered down to 1920x1080 on Raspberry Pi.
+
+v2: Fix vc5 typo in place of vc4.
+
+Cc: Peter Robinson <pbrobinson@redhat.com>
+Signed-off-by: Eric Anholt <eric@anholt.net>
+Link: https://patchwork.freedesktop.org/patch/msgid/20170920225935.14566-1-eric@anholt.net
+Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v1)
+(cherry picked from commit 32e823c63e90f7535ea1cc5311d25c0233e1456d)
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 15 +++++++++++++++
+ 1 file changed, 15 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -695,7 +695,22 @@ static void vc4_hdmi_encoder_enable(stru
+ 	}
+ }
+ 
++static enum drm_mode_status
++vc4_hdmi_encoder_mode_valid(struct drm_encoder *crtc,
++			    const struct drm_display_mode *mode)
++{
++	/* HSM clock must be 108% of the pixel clock.  Additionally,
++	 * the AXI clock needs to be at least 25% of pixel clock, but
++	 * HSM ends up being the limiting factor.
++	 */
++	if (mode->clock > HSM_CLOCK_FREQ / (1000 * 108 / 100))
++		return MODE_CLOCK_HIGH;
++
++	return MODE_OK;
++}
++
+ static const struct drm_encoder_helper_funcs vc4_hdmi_encoder_helper_funcs = {
++	.mode_valid = vc4_hdmi_encoder_mode_valid,
+ 	.disable = vc4_hdmi_encoder_disable,
+ 	.enable = vc4_hdmi_encoder_enable,
+ };