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author | Stijn Tintel <stijn@linux-ipv6.be> | 2018-11-10 13:03:18 +0200 |
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committer | Stijn Tintel <stijn@linux-ipv6.be> | 2018-12-18 23:19:21 +0200 |
commit | f5919b65d4c671fd5083838c7a445f319f9a13c8 (patch) | |
tree | 2c791d2a5dea5bbbb0b85f86f74afce2647c0726 /target/linux/brcm2708/patches-4.14/950-0122-amba_pl011-Add-cts-event-workaround-DT-property.patch | |
parent | 822b4c3b250a254e74407056ccfd5c6aa38da162 (diff) | |
download | upstream-f5919b65d4c671fd5083838c7a445f319f9a13c8.tar.gz upstream-f5919b65d4c671fd5083838c7a445f319f9a13c8.tar.bz2 upstream-f5919b65d4c671fd5083838c7a445f319f9a13c8.zip |
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>
Diffstat (limited to 'target/linux/brcm2708/patches-4.14/950-0122-amba_pl011-Add-cts-event-workaround-DT-property.patch')
-rw-r--r-- | target/linux/brcm2708/patches-4.14/950-0122-amba_pl011-Add-cts-event-workaround-DT-property.patch | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0122-amba_pl011-Add-cts-event-workaround-DT-property.patch b/target/linux/brcm2708/patches-4.14/950-0122-amba_pl011-Add-cts-event-workaround-DT-property.patch new file mode 100644 index 0000000000..2e994e3743 --- /dev/null +++ b/target/linux/brcm2708/patches-4.14/950-0122-amba_pl011-Add-cts-event-workaround-DT-property.patch @@ -0,0 +1,47 @@ +From ca1ca821f735ad6284fa0c6228f27415e90f7a8f Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Fri, 29 Sep 2017 10:32:19 +0100 +Subject: [PATCH 122/454] amba_pl011: Add cts-event-workaround DT property + +The BCM2835 PL011 implementation seems to have a bug that can lead to a +transmission lockup if CTS changes frequently. A workaround was added to +the driver with a vendor-specific flag to enable it, but this flag is +currently not set for ARM implementations. + +Add a "cts-event-workaround" property to Pi DTBs and use the presence +of that property to force the flag to be enabled in the driver. + +See: https://github.com/raspberrypi/linux/issues/1280 + +Signed-off-by: Phil Elwell <phil@raspberrypi.org> +--- + Documentation/devicetree/bindings/serial/pl011.txt | 3 +++ + drivers/tty/serial/amba-pl011.c | 5 +++++ + 2 files changed, 8 insertions(+) + +--- a/Documentation/devicetree/bindings/serial/pl011.txt ++++ b/Documentation/devicetree/bindings/serial/pl011.txt +@@ -35,6 +35,9 @@ Optional properties: + - poll-timeout-ms: + Poll timeout when auto-poll is set, default + 3000ms. ++- cts-event-workaround: ++ Enables the (otherwise vendor-specific) workaround for the ++ CTS-induced TX lockup. + + See also bindings/arm/primecell.txt + +--- a/drivers/tty/serial/amba-pl011.c ++++ b/drivers/tty/serial/amba-pl011.c +@@ -2681,6 +2681,11 @@ static int pl011_probe(struct amba_devic + if (IS_ERR(uap->clk)) + return PTR_ERR(uap->clk); + ++ if (of_property_read_bool(dev->dev.of_node, "cts-event-workaround")) { ++ vendor->cts_event_workaround = true; ++ dev_info(&dev->dev, "cts_event_workaround enabled\n"); ++ } ++ + uap->reg_offset = vendor->reg_offset; + uap->vendor = vendor; + uap->fifosize = vendor->get_fifosize(dev); |