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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-4.14/950-0123-amba-pl011-Report-AUTOCTS-capability-to-framework.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-4.14/950-0123-amba-pl011-Report-AUTOCTS-capability-to-framework.patch')
-rw-r--r-- | target/linux/brcm2708/patches-4.14/950-0123-amba-pl011-Report-AUTOCTS-capability-to-framework.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0123-amba-pl011-Report-AUTOCTS-capability-to-framework.patch b/target/linux/brcm2708/patches-4.14/950-0123-amba-pl011-Report-AUTOCTS-capability-to-framework.patch new file mode 100644 index 0000000000..f491df2b8a --- /dev/null +++ b/target/linux/brcm2708/patches-4.14/950-0123-amba-pl011-Report-AUTOCTS-capability-to-framework.patch @@ -0,0 +1,43 @@ +From fc4fafeed9a7cc89b4779681f046a8cc0f506dd9 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Wed, 11 Oct 2017 13:48:04 +0100 +Subject: [PATCH 123/454] amba-pl011: Report AUTOCTS capability to framework + +The PL011 has full hardware RTS/CTS support which is enabled by +the driver when flow control is requested. However, it doesn't +notify the UART framework of the fact, causing the software CTS +support to be enabled at the same time. + +Software CTS triggers the sending of another batch of characters +when CTS becomes asserted. The pl011 interrupt handler processes +the CTIS bit before TXIS, which can cause some characters to be +sent between the time that the TXIS bit first becomes asserted +and the time it is handled by a call to px011_tx_chars. This +would be fine were it not for the optimisation in pl011_tx_char +that assumes the FIFO is half-empty if called from the interrupt +handler and skips the checking of the FIFO status register before +sending each character, leading to data loss if the FIFO is more +than half-full. + +Prevent the data loss and improve efficiency by indicating the +AUTOCTS support. + +Signed-off-by: Phil Elwell <phil@raspberrypi.org> +--- + drivers/tty/serial/amba-pl011.c | 2 ++ + 1 file changed, 2 insertions(+) + +--- a/drivers/tty/serial/amba-pl011.c ++++ b/drivers/tty/serial/amba-pl011.c +@@ -2063,9 +2063,11 @@ pl011_set_termios(struct uart_port *port + + old_cr |= UART011_CR_CTSEN; + uap->autorts = true; ++ port->status |= UPSTAT_AUTOCTS; + } else { + old_cr &= ~(UART011_CR_CTSEN | UART011_CR_RTSEN); + uap->autorts = false; ++ port->status &= ~UPSTAT_AUTOCTS; + } + + if (uap->vendor->oversampling) { |