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Subject[GIT PULL] TTY/Serial driver patches for 4.9-rc1
The following changes since commit c6935931c1894ff857616ff8549b61236a19148f:

Linux 4.8-rc5 (2016-09-04 14:31:46 -0700)

are available in the git repository at:

git:// tags/tty-4.9-rc1

for you to fetch changes up to 08bf21590041550e5ffd4d33e6a58548d0d09142:

Revert "serial: pl011: add console matching function" (2016-09-30 07:46:35 +0200)

TTY/Serial patches for 4.9-rc1

Here is the big TTY and Serial patch set for 4.9-rc1.

It also includes some drivers/dma/ changes, as those were needed by some
serial drivers, and they were all acked by the DMA maintainer. Also in
here is the long-suffering ACPI SPCR patchset, which was passed around
from maintainer to maintainer like a hot-potato. Seems I was the
sucker^Wlucky one. All of those patches have been acked by the various
subsystem maintainers as well.

All of this has been in linux-next with no reported issues.

Signed-off-by: Greg Kroah-Hartman <>

Adam Borowski (5):
vt: Fix a read-past-array in vc_t416_color().
vt: Make a comparison <= for readability.
vt: Drop a no longer true comment.
vt: Support \e[90-97m (bright foreground colors).
vt: Emulate \e[100-107m (bright background colors).

Aleksey Makarov (3):
ACPI: parse SPCR and enable matching console
serial: pl011: add console matching function

Alexander Sverdlin (2):
serial: earlycon: Extend earlycon command line option to support 64-bit addresses
serial: core: Fix handling of options after MMIO address

Alexandre TORGUE (10):
serial: stm32: adding support for stm32f7
DOCUMENTATION: dt-bindings: Document the STM32 USART bindings
serial: stm32: header file creation
serial: stm32: disable tx and rx during shutdown
serial: stm32: correct flow control property spelling
serial: stm32: clock disabling management
dt-bindings: Add DMA bindings for STM32 USART
serial: stm32: adding dma support
serial: stm32: fix spin_lock management
serial: stm32: fix uart enable management

Alexey Starikovskiy (1):
tty/serial: atmel: fix fractional baud rate computation

Andy Shevchenko (15):
dmaengine: dw: keep copy of custom slave config in dwc
dmaengine: dw: set polarity of handshake interface
dmaengine: dw: override LLP support if asked in platform data
dmaengine: dw: provide probe(), remove() stubs for users
serial: 8250_dma: switch to new dmaengine_terminate_* API
serial: 8250_dma: adjust DMA address of the UART
serial: 8250: enable AFE on ports where FIFO is 16 bytes
serial: 8250_lpss: split LPSS driver to separate module
serial: 8250_lpss: move Quark code from PCI driver
serial: 8250_lpss: enable MSI for Intel Quark
serial: 8250_lpss: enable DMA on Intel Quark UART
serial: 8250_port: fix runtime PM use in __do_stop_tx_rs485()
serial: 8250_port: unify check of em485 variable
dmaengine: hsu: refactor hsu_dma_do_irq() to return int
serial: core: fix potential NULL pointer dereference

Anirudha Sarangi (2):
serial: xuartps: Do not enable parity error interrupt
serial: xuartps: Rewrite the interrupt handling logic

Arnd Bergmann (1):
serial: stm32: use mapbase instead of membase for DMA

Baoyou Xie (2):
tty/serial: mark __init early_smh_setup() static
serial: stm32: mark symbols static where possible

Bhuvanchandra DV (5):
tty: serial: fsl_lpuart: Fix broken 8m/s1 support
tty: serial: fsl_lpuart: Use cyclic DMA for Rx
tty: serial: fsl_lpuart: Use scatter/gather DMA for Tx
tty: serial: fsl_lpuart: Update suspend/resume for DMA mode
tty: serial: fsl_lpuart: Add support for RS-485

Christophe JAILLET (1):
serial: vt8500_serial: Fix a parameter of find_first_zero_bit.

Eddie Huang (1):
serial: 8250_mtk: support big baud rate.

Eric W. Biederman (6):
devpts: Move parse_mount_options into fill_super
devpts: Move the creation of /dev/pts/ptmx into fill_super
devpts: Simplify devpts_mount by using mount_nodev
devpts: Make devpts_kill_sb safe if fsi is NULL
devpts: Remove sync_filesystems
devpts: Change the owner of /dev/pts/ptmx to the mounter of /dev/pts

Fabien Lahoudere (1):
serial: imx: Replace dmaengine old API

Fabio Estevam (1):
serial: mxs-auart: Disable clock on error path

Florian Vallee (1):
sc16is7xx: make sure device is in suspend once probed

Greg Kroah-Hartman (3):
Merge 4.8-rc5 into tty-next
Revert "drivers/tty: Explicitly pass current to show_stack"
Revert "serial: pl011: add console matching function"

Jan Kiszka (1):
serial: 8250_pci: Use symbolic constants for EXAR's MPIO registers

Jiri Olsa (1):
tty/serial/8250: Touch NMI watchdog in wait_for_xmitr

Julia Lawall (10):
tty/serial: at91: use of_property_read_bool
serial/arc: constify uart_ops structures
serial: st-asc: constify uart_ops structures
tty/serial: at91: constify uart_ops structures
serial: altera: constify uart_ops structures
serial/bcm63xx_uart: constify uart_ops structures
tty: serial: jsm_tty: constify uart_ops structures
tty: serial: constify uart_ops structures
tty: xuartps: constify uart_ops structures
serial-uartlite: constify uart_ops structures

Kees Cook (1):
pty: make ptmx file ops read-only after init

Kefeng Wang (4):
serial: 8250_dw: Check the data->pclk when get apb_pclk
serial: 8250_dw: Use an unified new dev variable in probe
serial: 8250_dw: add ACPI support for uart on Hisilicon Hip05 SoC
tty: amba-pl011: Don't complain on -EPROBE_DEFER when no irq

Krzysztof Kozlowski (1):
serial: samsung: Register cpufreq notifier only on S3C24xx

Leif Lindholm (1):
of/serial: move earlycon early_param handling to serial

Liu Xiang (1):
serial: max310x: Set IRQF_TRIGGER_FALLING flag when dev.of_node is not NULL

Ludovic Desroches (1):
tty/serial: atmel: add fractional baud rate support

Mark Rutland (1):
drivers/tty: Explicitly pass current to show_stack

Martyn Welch (1):
Allowing UART DMA to be configured on i.MX53

Nandor Han (4):
dmaengine: imx-sdma - reduce transfer latency for DMA cyclic clients
dmaengine: imx-sdma - update the residue calculation for cyclic channels
serial: imx-serial - update UART IMX driver to use cyclic DMA
serial: imx-serial - update RX error counters when DMA is used

Nava kishore Manne (3):
serial: xuartps: Adds RXBS register support for zynqmp
tty: serial: xuartps: Wait for rx and tx reset done status
serial: xuartps: Removed unwanted checks while reading the error conditions

Nicolas Ferre (1):
MAINTAINERS: update entry for atmel_serial driver

Richard Genoud (1):
BUG: atmel_serial: Interrupts not disabled on close

Rob Herring (3):
tty: serial_core: convert uart_open to use tty_port_open
tty: serial_core: convert uart_close to use tty_port_close
tty: serial_core: add tty NULL check to uart_tx_stopped

Sascha Hauer (1):
serial: imx: Fix DCD reading

Scott Telford (1):
serial: xuartps: Add some register initialisation to cdns_early_console_setup()

Shawn Guo (4):
tty: amba-pl011: define flag register bits for ZTE device
tty: amba-pl011: add .get_fifosize for ZTE device
tty: amba-pl011: probe ZTE device from AMBA bus with a pseudo-ID
tty: amba-pl011: uart_amba_port is not available with earlycon function

Stefan Agner (3):
tty: serial: fsl_lpuart: consider TX FIFO too in tx_empty
tty: serial: fsl_lpuart: support suspend/resume
tty: serial: fsl_lpuart: fix clearing of receive flag

Thor Thayer (4):
Documentation: dt: serial: Add TX FIFO threshold parameter
serial: 8250: of: Load TX FIFO Threshold from DT
serial: 8250: Set Altera 16550 TX FIFO Threshold
nios2: dts: 10m50: Add tx-threshold parameter

Uwe Kleine-König (1):
serial: imx: add error messages when .probe fails

Wei Yongjun (3):
serial: mxs-auart: Use PTR_ERR_OR_ZERO() to simplify the code
tty: serial: fsl_lpuart: use GFP_ATOMIC under spin lock
serial: mxs-auart: Fix missing clk_disable_unprepare() on error in mxs_get_clks()

Documentation/devicetree/bindings/serial/8250.txt | 2 +
.../devicetree/bindings/serial/st,stm32-usart.txt | 46 ++
Documentation/kernel-parameters.txt | 11 +-
arch/arm64/Kconfig | 1 +
arch/arm64/kernel/acpi.c | 11 +-
arch/nios2/boot/dts/10m50_devboard.dts | 1 +
drivers/acpi/Kconfig | 3 +
drivers/acpi/Makefile | 1 +
drivers/acpi/spcr.c | 111 +++
drivers/dma/dw/core.c | 39 +-
drivers/dma/dw/regs.h | 5 +-
drivers/dma/hsu/hsu.c | 9 +-
drivers/dma/hsu/pci.c | 6 +-
drivers/dma/imx-sdma.c | 56 +-
drivers/of/fdt.c | 11 +-
drivers/tty/pty.c | 2 +-
drivers/tty/serial/8250/8250.h | 5 +
drivers/tty/serial/8250/8250_core.c | 2 +-
drivers/tty/serial/8250/8250_dma.c | 14 +-
drivers/tty/serial/8250/8250_dw.c | 48 +-
drivers/tty/serial/8250/8250_lpss.c | 378 ++++++++++
drivers/tty/serial/8250/8250_mid.c | 8 +-
drivers/tty/serial/8250/8250_mtk.c | 6 +-
drivers/tty/serial/8250/8250_of.c | 7 +
drivers/tty/serial/8250/8250_pci.c | 312 ++------
drivers/tty/serial/8250/8250_port.c | 81 +-
drivers/tty/serial/8250/Kconfig | 16 +-
drivers/tty/serial/8250/Makefile | 1 +
drivers/tty/serial/altera_jtaguart.c | 2 +-
drivers/tty/serial/altera_uart.c | 2 +-
drivers/tty/serial/amba-pl011.c | 57 +-
drivers/tty/serial/arc_uart.c | 2 +-
drivers/tty/serial/atmel_serial.c | 58 +-
drivers/tty/serial/bcm63xx_uart.c | 2 +-
drivers/tty/serial/earlycon-arm-semihost.c | 3 +-
drivers/tty/serial/earlycon.c | 26 +-
drivers/tty/serial/fsl_lpuart.c | 814 ++++++++++++---------
drivers/tty/serial/imx.c | 213 ++++--
drivers/tty/serial/jsm/jsm_tty.c | 2 +-
drivers/tty/serial/max3100.c | 2 +-
drivers/tty/serial/max310x.c | 2 +-
drivers/tty/serial/men_z135_uart.c | 2 +-
drivers/tty/serial/mxs-auart.c | 15 +-
drivers/tty/serial/pch_uart.c | 2 +-
drivers/tty/serial/samsung.c | 2 +-
drivers/tty/serial/samsung.h | 2 +-
drivers/tty/serial/sc16is7xx.c | 20 +
drivers/tty/serial/serial_core.c | 136 ++--
drivers/tty/serial/sh-sci.c | 2 +-
drivers/tty/serial/st-asc.c | 2 +-
drivers/tty/serial/stm32-usart.c | 613 ++++++++++++----
drivers/tty/serial/stm32-usart.h | 229 ++++++
drivers/tty/serial/timbuart.c | 2 +-
drivers/tty/serial/uartlite.c | 2 +-
drivers/tty/serial/vt8500_serial.c | 8 +-
drivers/tty/serial/xilinx_uartps.c | 304 +++++---
drivers/tty/vt/vt.c | 13 +-
fs/devpts/inode.c | 71 +-
include/linux/acpi.h | 6 +
include/linux/amba/bus.h | 6 +
include/linux/amba/serial.h | 9 +
include/linux/atmel_serial.h | 2 +
include/linux/dma/dw.h | 5 +
include/linux/dma/hsu.h | 9 +-
include/linux/of_fdt.h | 3 +
include/linux/platform_data/dma-dw.h | 4 +
include/linux/serial_core.h | 13 +-
include/uapi/linux/serial_reg.h | 8 +
69 files changed, 2610 insertions(+), 1269 deletions(-)
create mode 100644 Documentation/devicetree/bindings/serial/st,stm32-usart.txt
create mode 100644 drivers/acpi/spcr.c
create mode 100644 drivers/tty/serial/8250/8250_lpss.c
create mode 100644 drivers/tty/serial/stm32-usart.h

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