Commit Graph

72 Commits

Author SHA1 Message Date
Paul Bolle c51d41a1dd tty: serial: fix typo "SERIAL_S3C2412"
The Kconfig symbol SERIAL_S3C2412 got removed in commit
da121506eb ("serial: samsung: merge
probe() function from all SoC specific extensions"). But it also added a
last reference to that symbol. The commit and the tree make clear that
CPU_S3C2412 should have been used instead.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-12 08:53:23 -07:00
Paul Bolle 827aa0d36d tty: serial: fix typo "ARCH_S5P6450"
This could have been either ARCH_S5P64X0 or CPU_S5P6450. Looking at
commit 2555e663b3 ("ARM: S5P64X0: Add UART
serial support for S5P6450") - which added this typo - makes clear this
should be CPU_S5P6450.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-12 08:53:23 -07:00
Linus Torvalds aebb2afd54 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:

 o Add basic support for the Mediatek/Ralink Wireless SoC family.

 o The Qualcomm Atheros platform is extended by support for the new
   QCA955X SoC series as well as a bunch of patches that get the code
   ready for OF support.

 o Lantiq and BCM47XX platform have a few improvements and bug fixes.

 o MIPS has sent a few patches that get the kernel ready for the
   upcoming microMIPS support.

 o The rest of the series is made up of small bug fixes and cleanups
   that relate to various parts of the MIPS code.  The biggy in there is
   a whitespace cleanup.  After I was sent another set of whitespace
   cleanup patches I decided it was the time to clean the whitespace
   "issues" for once and and that touches many files below arch/mips/.

Fix up silly conflicts, mostly due to whitespace cleanups.

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (105 commits)
  MIPS: Quit exporting kernel internel break codes to uapi/asm/break.h
  MIPS: remove broken conditional inside vpe loader code
  MIPS: SMTC: fix implicit declaration of set_vi_handler
  MIPS: early_printk: drop __init annotations
  MIPS: Probe for and report hardware virtualization support.
  MIPS: ath79: add support for the Qualcomm Atheros AP136-010 board
  MIPS: ath79: add USB controller registration code for the QCA955X SoCs
  MIPS: ath79: add PCI controller registration code for the QCA955X SoCs
  MIPS: ath79: add WMAC registration code for the QCA955X SoCs
  MIPS: ath79: register UART for the QCA955X SoCs
  MIPS: ath79: add QCA955X specific glue to ath79_device_reset_{set, clear}
  MIPS: ath79: add GPIO setup code for the QCA955X SoCs
  MIPS: ath79: add IRQ handling code for the QCA955X SoCs
  MIPS: ath79: add clock setup code for the QCA955X SoCs
  MIPS: ath79: add SoC detection code for the QCA955X SoCs
  MIPS: ath79: add early printk support for the QCA955X SoCs
  MIPS: ath79: fix WMAC IRQ resource assignment
  mips: reserve elfcorehdr
  mips: Make sure kernel memory is in iomem
  MIPS: ath79: use dynamically allocated USB platform devices
  ...
2013-03-02 07:44:16 -08:00
Heiko Carstens f2eca58f2a drivers/serial: add GENERIC_HARDIRQS dependency
Since SERIAL_CORE needs GENERIC_HARDIRQS (see below) and most serial drivers
select it, just add a GENERIC_HARDIRQS dependency to all serial drivers.

Fixes the compile error below:

drivers/tty/serial/serial_core.c: In function ‘uart_set_info’:
drivers/tty/serial/serial_core.c:725:2: error: implicit declaration of function ‘irq_canonicalize’

Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-08 12:24:57 -08:00
Ralf Baechle e33b0451e9 MIPS: PNX8550: Remove support for SOC and JBS and STB810 boards.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-02-01 10:00:21 +01:00
Joe Millenbach 4f73bc4dd3 tty: Added a CONFIG_TTY option to allow removal of TTY
The option allows you to remove TTY and compile without errors. This
saves space on systems that won't support TTY interfaces anyway.
bloat-o-meter output is below.

The bulk of this patch consists of Kconfig changes adding "depends on
TTY" to various serial devices and similar drivers that require the TTY
layer.  Ideally, these dependencies would occur on a common intermediate
symbol such as SERIO, but most drivers "select SERIO" rather than
"depends on SERIO", and "select" does not respect dependencies.

bloat-o-meter output comparing our previous minimal to new minimal by
removing TTY.  The list is filtered to not show removed entries with awk
'$3 != "-"' as the list was very long.

add/remove: 0/226 grow/shrink: 2/14 up/down: 6/-35356 (-35350)
function                                     old     new   delta
chr_dev_init                                 166     170      +4
allow_signal                                  80      82      +2
static.__warned                              143     142      -1
disallow_signal                               63      62      -1
__set_special_pids                            95      94      -1
unregister_console                           126     121      -5
start_kernel                                 546     541      -5
register_console                             593     588      -5
copy_from_user                                45      40      -5
sys_setsid                                   128     120      -8
sys_vhangup                                   32      19     -13
do_exit                                     1543    1526     -17
bitmap_zero                                   60      40     -20
arch_local_irq_save                          137     117     -20
release_task                                 674     652     -22
static.spin_unlock_irqrestore                308     260     -48

Signed-off-by: Joe Millenbach <jmillenbach@gmail.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-18 16:15:27 -08:00
Kevin Cernekee 7d9f49afa4 serial: rp2: New driver for Comtrol RocketPort 2 cards
This driver supports the RocketPort EXPRESS and RocketPort INFINITY
families of PCI/PCIe multiport serial adapters.  These adapters use a
"RocketPort 2" ASIC that is not compatible with the original RocketPort
driver (CONFIG_ROCKETPORT).

Tested with the RocketPort EXPRESS Octa DB9 and Quad DB9.  Also added an
old RocketPort 8J PCI card to the same system to verify that rocket.c and
rp2.c coexist peacefully.

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-17 17:28:39 -08:00
Laxman Dewangan e9ea096dd2 serial: tegra: add serial driver
NVIDIA's Tegra has multiple UART controller which supports:
- APB DMA based controller fifo read/write.
- End Of Data interrupt in incoming data to know whether end
  of frame achieve or not.
- HW controlled RTS and CTS flow control to reduce SW overhead.

Add serial driver to use all above feature.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-15 22:15:17 -08:00
Alexander Shiyan 18e0749aa8 serial: Unneeded ARCH dependencies are removed
This patch performs a small cleanup tty/Serial/Kconfig file by removing
unneeded ARCH dependencies. This dependencies already included in
board/type symbols.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-15 17:11:42 -08:00
Josh Cartwright 4bb535d2b6 serial: xilinx_uartps: kill CONFIG_OF conditional
The Zynq platform requires the use of CONFIG_OF.  Remove the #ifdef
conditionals in the uartps driver.  Make dependency explicit in Kconfig.

Signed-off-by: Josh Cartwright <josh.cartwright@ni.com>
Tested-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-15 16:58:19 -08:00
Vineet Gupta 2ac4ad2a14 serial/arc-uart: Add new driver
Driver for non-standard on-chip UART, instantiated in the ARC (Synopsys)
FPGA Boards such as ARCAngel4/ML50x

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-30 14:06:52 -07:00
Alexander Shiyan 725dd00a99 serial: sccnxp: Allows the driver to be compiled as a module
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-05 09:26:02 -07:00
Anton Vorontsov 0c57dfcc6c tty/serial: Add kgdb_nmi driver
This special driver makes it possible to temporary use NMI debugger port
as a normal console by issuing 'nmi_console' command (assuming that the
port is attached to KGDB).

Unlike KDB's disable_nmi command, with this driver you are always able
to go back to the debugger using KGDB escape sequence ($3#33).  This is
because this console driver processes the input in NMI context, and thus
is able to intercept the magic sequence.

Note that since the console interprets input and uses polling
communication methods, for things like PPP it is still better to fully
detach debugger port from the KGDB NMI (i.e. disable_nmi), and use raw
console.

Usually, to enter the debugger one have to type the magic sequence, so
initially the kernel will print the following prompt on the NMI debugger
console:

	Type $3#33 to enter the debugger>

For convenience, there is a kgdb_fiq.knock kernel command line option,
when set to 0, this turns the special command to just a return key
press, so the kernel will be printing this:

	Hit <return> to enter the debugger>

This is more convenient for long debugging sessions, although it makes
nmi_console feature somewhat useless.

And for the cases when NMI connected to a dedicated button, the knocking
can be disabled altogether by setting kgdb_fiq.knock to -1.

Suggested-by: Colin Cross <ccross@android.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Acked-by: Alan Cox <alan@linux.intel.com>
Acked-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-26 13:52:36 -07:00
Greg Kroah-Hartman 5de69349ed tty/serial: put (EXPERIMENTAL) marking back on N_GSM and SERIAL_IFX6X60
Alan says these are not production ready, and users should be told this,
so put the "(EXPERIMENTAL)" marking back in the Kconfig entry string.

Reported-by: Alan Cox <alan@linux.intel.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-18 17:17:56 +01:00
Greg Kroah-Hartman 8b77562b4f tty/serial: remove CONFIG_EXPERIMENTAL dependencies
As discussed at the kernel summit this year, CONFIG_EXPERIMENTAL means
nothing, so let's get rid of it.

Cc: Kees Cook <keescook@chromium.org>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-18 16:19:27 +01:00
Alexander Shiyan 1d65c0b126 serial: New serial driver SCCNXP
This driver is a replacement for a SC26XX driver with a lot of
improvements and new features.
The main differences from the SC26XX driver:
- Removed dependency on MIPS. Driver can be used on any platform.
- Added support for SCC2681, SCC2691, SCC2692, SC28L91, SC28L92,
  SC28L202, SCC68681 and SCC68692 ICs.
- Using devm_-related functions.
- Improved error handling of serial port, improved FIFO handling.
- Ability to load multiple instances of drivers.

To avoid the possibility of regression, driver SC26XX left in the
system to confirm the stability of the driver on platforms where
it is being used.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-05 13:21:46 -07:00
Greg Kroah-Hartman e372dc6c62 Merge 3.6-rc3 into tty-next
This picks up all of the different fixes in Linus's tree that we also need here.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-27 07:13:33 -07:00
Alexander Shiyan f65444187a serial: New serial driver MAX310X
This driver is a replacement for a MAX3107 driver with a lot of
improvements and new features.
The main differences from the old version:
- Using the regmap.
- Using devm_XXX-related functions.
- The use of threaded IRQ with IRQF_ONESHOT flag allows the driver to
  the hardware that supports only level IRQ.
- Improved error handling of serial port, improved FIFO handling,
  improved hardware & software flow control.
- Advanced flags allows turn on RS-485 mode (Auto direction control).
- Ability to load multiple instances of drivers.
- Added support for MAX3108.
- GPIO support.
- Driver is quite ready for adding I2C support and support other ICs
  with compatible registers set (MAX3109, MAX14830).

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-16 12:12:25 -07:00
Alexander Shiyan b53cc0fade serial: Change Kconfig entry for CLPS711X-target
This trivial patch adds a short description for SERIAL_CLPS711X Kconfig
entry, removes excess dependence on the ARM-platform (this is done
globally for the platform), allows the driver to be compiled by default
and removes unnecessary description about GRUB and LILO, because these
bootloaders do not supported this platform.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-10 13:19:31 -07:00
Roland Stigge 596f93f50e serial: Add driver for LPC32xx High Speed UARTs
This patch adds a driver for the 3 High Speed UARTs of the LPC32xx SoC that
support up to 921600bps. These UARTs are different from the 4 "Standard" UARTs
of the LPC32xx.

Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-12 15:48:01 -07:00
Arnd Bergmann d8c4019b41 tty/serial/omap: console can only be built-in
When the omap serial driver is built as a module, we must
not allow the console driver to be selected, because consoles
can not be loadable modules.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Govindraj.R <govindraj.raja@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-09 10:34:16 -07:00
Linus Torvalds 5375871d43 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc merge from Benjamin Herrenschmidt:
 "Here's the powerpc batch for this merge window.  It is going to be a
  bit more nasty than usual as in touching things outside of
  arch/powerpc mostly due to the big iSeriesectomy :-) We finally got
  rid of the bugger (legacy iSeries support) which was a PITA to
  maintain and that nobody really used anymore.

  Here are some of the highlights:

   - Legacy iSeries is gone.  Thanks Stephen ! There's still some bits
     and pieces remaining if you do a grep -ir series arch/powerpc but
     they are harmless and will be removed in the next few weeks
     hopefully.

   - The 'fadump' functionality (Firmware Assisted Dump) replaces the
     previous (equivalent) "pHyp assisted dump"...  it's a rewrite of a
     mechanism to get the hypervisor to do crash dumps on pSeries, the
     new implementation hopefully being much more reliable.  Thanks
     Mahesh Salgaonkar.

   - The "EEH" code (pSeries PCI error handling & recovery) got a big
     spring cleaning, motivated by the need to be able to implement a
     new backend for it on top of some new different type of firwmare.

     The work isn't complete yet, but a good chunk of the cleanups is
     there.  Note that this adds a field to struct device_node which is
     not very nice and which Grant objects to.  I will have a patch soon
     that moves that to a powerpc private data structure (hopefully
     before rc1) and we'll improve things further later on (hopefully
     getting rid of the need for that pointer completely).  Thanks Gavin
     Shan.

   - I dug into our exception & interrupt handling code to improve the
     way we do lazy interrupt handling (and make it work properly with
     "edge" triggered interrupt sources), and while at it found & fixed
     a wagon of issues in those areas, including adding support for page
     fault retry & fatal signals on page faults.

   - Your usual random batch of small fixes & updates, including a bunch
     of new embedded boards, both Freescale and APM based ones, etc..."

I fixed up some conflicts with the generalized irq-domain changes from
Grant Likely, hopefully correctly.

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (141 commits)
  powerpc/ps3: Do not adjust the wrapper load address
  powerpc: Remove the rest of the legacy iSeries include files
  powerpc: Remove the remaining CONFIG_PPC_ISERIES pieces
  init: Remove CONFIG_PPC_ISERIES
  powerpc: Remove FW_FEATURE ISERIES from arch code
  tty/hvc_vio: FW_FEATURE_ISERIES is no longer selectable
  powerpc/spufs: Fix double unlocks
  powerpc/5200: convert mpc5200 to use of_platform_populate()
  powerpc/mpc5200: add options to mpc5200_defconfig
  powerpc/mpc52xx: add a4m072 board support
  powerpc/mpc5200: update mpc5200_defconfig to fit for charon board
  Documentation/powerpc/mpc52xx.txt: Checkpatch cleanup
  powerpc/44x: Add additional device support for APM821xx SoC and Bluestone board
  powerpc/44x: Add support PCI-E for APM821xx SoC and Bluestone board
  MAINTAINERS: Update PowerPC 4xx tree
  powerpc/44x: The bug fixed support for APM821xx SoC and Bluestone board
  powerpc: document the FSL MPIC message register binding
  powerpc: add support for MPIC message register API
  powerpc/fsl: Added aliased MSIIR register address to MSI node in dts
  powerpc/85xx: mpc8548cds - add 36-bit dts
  ...
2012-03-21 18:55:10 -07:00
Stephen Rothwell c17a9d4c84 tty: powerpc: remove SERIAL_ICOM dependency on PPC_ISERIES
The PowerPC legacy iSeries platform is being removed so this is no
longer selectable.

Cc: Alan Cox <alan@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-serial@vger.kernel.org
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-03-09 10:35:19 +11:00
Greg Kroah-Hartman 5a22e30def Merge tag 'tty-3.3-rc3' tty-next
This is needed to handle the 8250 file merge mess properly for future
patches.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-10 10:25:27 -08:00
Uwe Kleine-König 3afbd89c96 serial/efm32: add new driver
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-26 11:29:47 -08:00
Alan Cox 523b82e373 serial: Kill off Moorestown code
All production devices operate in the Oaktrail configuration with legacy PC
elements present and an ACPI BIOS. Continue stripping out the Moorestown
elements from the tree leaving Medfield.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-26 11:19:46 -08:00
Paul Gortmaker 9bef3d4197 serial: group all the 8250 related code together
The drivers/tty/serial dir is already getting rather busy.
Relocate the 8250 related drivers to their own subdir to
reduce the clutter.

Note that sunsu.c is not included in this move -- it is
8250-like hardware, but it does not use any of the existing
infrastructure -- and does not depend on SERIAL_8250.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-24 11:23:59 -08:00
Linus Torvalds 4964e0664c Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (119 commits)
  MIPS: Delete unused function add_temporary_entry.
  MIPS: Set default pci cache line size.
  MIPS: Flush huge TLB
  MIPS: Octeon: Remove SYS_SUPPORTS_HIGHMEM.
  MIPS: Octeon: Add support for OCTEON II PCIe
  MIPS: Octeon: Update PCI Latency timer and enable more error reporting.
  MIPS: Alchemy: Update cpu-feature-overrides
  MIPS: Alchemy: db1200: Improve PB1200 detection.
  MIPS: Alchemy: merge Au1000 and Au1300-style IRQ controller code.
  MIPS: Alchemy: chain IRQ controllers to MIPS IRQ controller
  MIPS: Alchemy: irq: register pm at irq init time
  MIPS: Alchemy: Touchscreen support on DB1100
  MIPS: Alchemy: Hook up IrDA on DB1000/DB1100
  net/irda: convert au1k_ir to platform driver.
  MIPS: Alchemy: remove unused board headers
  MTD: nand: make au1550nd.c a platform_driver
  MIPS: Netlogic: Mark Netlogic chips as SMT capable
  MIPS: Netlogic: Add support for XLP 3XX cores
  MIPS: Netlogic: Merge some of XLR/XLP wakup code
  MIPS: Netlogic: Add default XLP config.
  ...

Fix up trivial conflicts in arch/mips/kernel/{perf_event_mipsxx.c,
traps.c} and drivers/tty/serial/Makefile
2012-01-14 13:05:21 -08:00
Linus Torvalds dfc1ebe766 Device tree conversions for samsung and tegra
Both platforms had some initial device tree support, but this adds
 much more to actually make it usable.
 
 This is where the really nasty conflicts in the samsung platform
 start, due to some files getting moved around and combined in the
 'restart' branch that has already gone into mainline through
 Russell's tree.
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Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Device tree conversions for samsung and tegra

Both platforms had some initial device tree support, but this adds
much more to actually make it usable.

* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (45 commits)
  ARM: dts: Add intial dts file for EXYNOS4210 SoC, SMDKV310 and ORIGEN
  ARM: EXYNOS: Add Exynos4 device tree enabled board file
  rtc: rtc-s3c: Add device tree support
  input: samsung-keypad: Add device tree support
  ARM: S5PV210: Modify platform data for pl330 driver
  ARM: S5PC100: Modify platform data for pl330 driver
  ARM: S5P64x0: Modify platform data for pl330 driver
  ARM: EXYNOS: Add a alias for pdma clocks
  ARM: EXYNOS: Limit usage of pl330 device instance to non-dt build
  ARM: SAMSUNG: Add device tree support for pl330 dma engine wrappers
  DMA: PL330: Add device tree support
  ARM: EXYNOS: Modify platform data for pl330 driver
  DMA: PL330: Infer transfer direction from transfer request instead of platform data
  DMA: PL330: move filter function into driver
  serial: samsung: Fix build for non-Exynos4210 devices
  serial: samsung: add device tree support
  serial: samsung: merge probe() function from all SoC specific extensions
  serial: samsung: merge all SoC specific port reset functions
  ARM: SAMSUNG: register uart clocks to clock lookup list
  serial: samsung: remove all uses of get_clksrc and set_clksrc
  ...

Fix up fairly trivial conflicts in arch/arm/mach-s3c2440/clock.c and
drivers/tty/serial/Kconfig both due to just adding code close to
changes.
2012-01-09 14:28:38 -08:00
Linus Torvalds 5983faf942 Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
* 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (65 commits)
  tty: serial: imx: move del_timer_sync() to avoid potential deadlock
  imx: add polled io uart methods
  imx: Add save/restore functions for UART control regs
  serial/imx: let probing fail for the dt case without a valid alias
  serial/imx: propagate error from of_alias_get_id instead of using -ENODEV
  tty: serial: imx: Allow UART to be a source for wakeup
  serial: driver for m32 arch should not have DEC alpha errata
  serial/documentation: fix documented name of DCD cpp symbol
  atmel_serial: fix spinlock lockup in RS485 code
  tty: Fix memory leak in virtual console when enable unicode translation
  serial: use DIV_ROUND_CLOSEST instead of open coding it
  serial: add support for 400 and 800 v3 series Titan cards
  serial: bfin-uart: Remove ASYNC_CTS_FLOW flag for hardware automatic CTS.
  serial: bfin-uart: Enable hardware automatic CTS only when CTS pin is available.
  serial: make FSL errata depend on 8250_CONSOLE, not just 8250
  serial: add irq handler for Freescale 16550 errata.
  serial: manually inline serial8250_handle_port
  serial: make 8250 timeout use the specified IRQ handler
  serial: export the key functions for an 8250 IRQ handler
  serial: clean up parameter passing for 8250 Rx IRQ handling
  ...
2012-01-09 12:09:24 -08:00
Linus Torvalds 98793265b4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (53 commits)
  Kconfig: acpi: Fix typo in comment.
  misc latin1 to utf8 conversions
  devres: Fix a typo in devm_kfree comment
  btrfs: free-space-cache.c: remove extra semicolon.
  fat: Spelling s/obsolate/obsolete/g
  SCSI, pmcraid: Fix spelling error in a pmcraid_err() call
  tools/power turbostat: update fields in manpage
  mac80211: drop spelling fix
  types.h: fix comment spelling for 'architectures'
  typo fixes: aera -> area, exntension -> extension
  devices.txt: Fix typo of 'VMware'.
  sis900: Fix enum typo 'sis900_rx_bufer_status'
  decompress_bunzip2: remove invalid vi modeline
  treewide: Fix comment and string typo 'bufer'
  hyper-v: Update MAINTAINERS
  treewide: Fix typos in various parts of the kernel, and fix some comments.
  clockevents: drop unknown Kconfig symbol GENERIC_CLOCKEVENTS_MIGR
  gpio: Kconfig: drop unknown symbol 'CS5535_GPIO'
  leds: Kconfig: Fix typo 'D2NET_V2'
  sound: Kconfig: drop unknown symbol ARCH_CLPS7500
  ...

Fix up trivial conflicts in arch/powerpc/platforms/40x/Kconfig (some new
kconfig additions, close to removed commented-out old ones)
2012-01-08 13:21:22 -08:00
Thomas Abraham da121506eb serial: samsung: merge probe() function from all SoC specific extensions
With reset port, set clock and get clock functions in SoC specific extentions
being removed, only the driver probe is left over in these extensions. The
probe function itself can be merged into one and moved into the samsung common
serial driver. With driver probe also moved, all the SoC specific extentions
are no longer required and they are deleted.

Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23 10:07:00 +09:00
Paul Gortmaker 5c2f37dddd serial: make FSL errata depend on 8250_CONSOLE, not just 8250
The recent commit "serial: add irq handler for Freescale 16550 errata"
would allow Kconfig choices that had 8250 support as a module and
yet still try and build in the errata fix non-modular, resulting
in build failures for some non-embedded PPC targets.

Since we hook in the errata fix from legacy_serial.c, which is
built only for PPC_UDBG_16550, and since the errata is only really
relevant for SysRQ on serial console, tighten up the dependencies
to be exactly that.

We'll get coverage on the relevant Freescale boards because the
Kconfig for their CPU types all select the PPC_UDBG_16550 option,
and the defconfigs also all select the 8250_CONSOLE option.  Also,
the 8250_CONSOLE option has a strict dependency on "SERIAL_8250=y"
which resolves the reported problem for non Freescale targets.

Reported-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Tested-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-13 09:50:13 -08:00
Paul Gortmaker 9deaa53ac7 serial: add irq handler for Freescale 16550 errata.
Sending a break on the SOC UARTs found in some MPC83xx/85xx/86xx
chips seems to cause a short lived IRQ storm (/proc/interrupts
typically shows somewhere between 300 and 1500 events).  Unfortunately
this renders SysRQ over the serial console completely inoperable.

The suggested workaround in the errata is to read the Rx register,
wait one character period, and then read the Rx register again.
We achieve this by tracking the old LSR value, and on the subsequent
interrupt event after a break, we don't read LSR, instead we just
read the RBR again and return immediately.

The "fsl,ns16550" is used in the compatible field of the serial
device to mark UARTs known to have this issue.

Thanks to Scott Wood for providing the errata data which led to
a much cleaner fix.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-09 19:14:13 -08:00
Gabor Juhos d57f341ba0 SERIAL: AR933X: Add driver for the built-in UART of the SoC
This patch adds the driver for the built-in UART of the
Atheros AR933X SoCs.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: Kathy Giori <kgiori@qca.qualcomm.com>
Cc: "Luis R.  Rodriguez" <rodrigue@qca.qualcomm.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: linux-serial@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2526/
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-12-07 22:02:46 +00:00
Greg Kroah-Hartman dd7c7c3f69 Merge 3.2-rc3 into tty-next to handle merge conflict in tty_ldisc.c
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26 20:07:25 -08:00
Paul Bolle 521b8ce615 serial: Kconfig: drop unknown symbol 'ARCH_IMX'
Commit 8c8fdbc9bd ("[ARM] Remove arch-imx from build system") dropped
ARCH_IMX. So this last reference to ARCH_IMX has been an
(inconsequential) nop since v2.6.31. And because ARCH_MXC practically
implies ARM we can also drop the reference to the latter symbol.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-11-22 18:15:04 +01:00
Rong Wang 161e773cbd UART: add CSR SiRFprimaII SoC on-chip uart drivers
SiRFprimaII is the latest generation application processor from CSR’s
multi-function SoC product family.
The SoC support codes are in arch/arm/mach-prima2 from Linux mainline
3.0.

There are three dedicated UARTs in system. This patch adds basic driver
support for them.

It has used the newest pinmux subsystem from Linus Walleij.

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Rong Wang <Rong.Wang@csr.com>
Signed-off-by: Bin Shi <Bin.Shi@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-17 11:46:04 -08:00
Shubhrajyoti D f370626619 serial: OMAP2+: UART: Make the SERIAL_OMAP depend on ARCH_OMAP2PLUS
Making  SERIAL_OMAP depend on ARCH_OMAP2PLUS instead of
oring with ARCH2/3/4.

Acked-by: Felipe Balbi <balbi@ti.com>
Suggested-by: Sricharan R <r.sricharan@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 15:56:31 -08:00
Alexander Stein e30f867d40 drivers/tty/serial/pch_uart.c: add console support
Add console support to pch_uart.  To enable append e.g.
console=ttyPCH0,115200 to your kernel command line.

This is not expected work on CM-iTC boards due to their having a different
clock.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 15:50:31 -08:00
Tomoya MORINAGA 8249f743f7 pch_uart: Support new device LAPIS Semiconductor ML7831 IOH
ML7831 is companion chip for Intel Atom E6xx series.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.lapis-semi.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 12:04:12 -08:00
Jiri Slaby 3a0db7215c TTY: serial, move 68360 driver to staging
This driver has been broken at least since 2008. At that time,
a88487c79b (Fix compile errors in SGI console drivers) broke this
driver completely.

And since nobody noticed for the past 3 years, move it into staging. I
think this will rot there and we will throw it away completely after
some time. Or maybe someone will volunteer to fix it ;).

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-09-22 16:00:20 -07:00
Jamie Iles 7d4008ebb1 tty: add a DesignWare 8250 driver
The Synopsys DesignWare 8250 is an 8250 that has an extra interrupt that
gets raised when writing to the LCR when busy.  To handle this we need
special serial_out, serial_in and handle_irq methods.  Add a new
platform driver that uses these accessors.

Cc: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-26 11:38:46 -07:00
Kukjin Kim a16913a9b3 tty: Add support serial for EXYNOS4212 SoC
According to add support EXYNOS4212 SoC, we need to enable
SERIAL_S5PV210 on EXYNOS4212.

Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-24 15:28:00 -07:00
Greg Kroah-Hartman 9a234349de Revert "tty: serial8250: add helpers for the DesignWare 8250"
This reverts commit 6b1a98d1c4.

It causes a build error that needs to be resolved differently.

Cc: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-24 15:25:49 -07:00
Jamie Iles 6b1a98d1c4 tty: serial8250: add helpers for the DesignWare 8250
The Synopsys DesignWare 8250 is an 8250 that has an extra interrupt that
gets raised when writing to the LCR when busy.  To handle this we need
special serial_out, serial_in and handle_irq methods.  Add a new
function serial8250_use_designware_io() that configures a uart_port with
these accessors.

Cc: Alan Cox <alan@linux.intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 10:54:19 -07:00
Sonic Zhang 0c6967b5a0 serial:blackfin: rename Blackfin serial driver to bfin_uart.c
bfin_5xx.c is not a general name for all Blackfin chips.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 10:47:05 -07:00
Linus Torvalds e10b87d2b5 Merge branch 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x
* 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x: (39 commits)
  SH: static should be at beginning of declaration
  sh: move CLKDEV_xxx_ID macro to sh_clk.h
  sh: clock-shx3: add CLKDEV_ICK_ID for cleanup
  sh: clock-sh7786: add CLKDEV_ICK_ID for cleanup
  sh: clock-sh7785: add CLKDEV_ICK_ID for cleanup
  sh: clock-sh7757: add CLKDEV_ICK_ID for cleanup
  sh: clock-sh7366: add CLKDEV_ICK_ID for cleanup
  sh: clock-sh7343: add CLKDEV_ICK_ID for cleanup
  sh: clock-sh7722: add CLKDEV_ICK_ID for cleanup
  sh: clock-sh7724: add CLKDEV_ICK_ID for cleanup
  sh: clock-sh7366: modify I2C clock settings
  sh: clock-sh7343: modify I2C clock settings
  sh: clock-sh7723: modify I2C clock settings
  sh: clock-sh7722: modify I2C clock settings
  sh: clock-sh7724: modify I2C clock settings
  serial: sh-sci: Fix up pretty name printing for port IRQs.
  serial: sh-sci: Kill off per-port enable/disable callbacks.
  serial: sh-sci: Add missing module description/author bits.
  serial: sh-sci: Regtype probing doesn't need to be fatal.
  sh: Tidy up pre-clkdev clk_get() error handling.
  ...
2011-08-01 06:10:16 -10:00
Linus Torvalds d5ef642355 Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (26 commits)
  amba pl011: workaround for uart registers lockup
  n_gsm: fix the wrong FCS handling
  pch_uart: add missing comment about OKI ML7223
  pch_uart: Add MSI support
  tty: fix "IRQ45: nobody cared"
  PTI feature to allow user to name and mark masterchannel request.
  0 for o PTI Makefile bug.
  tty: serial: samsung.c remove legacy PM code.
  SERIAL: SC26xx: Fix link error.
  serial: mrst_max3110: initialize waitqueue earlier
  mrst_max3110: Change max missing message priority.
  tty: s5pv210: Add delay loop on fifo reset function for UART
  tty/serial: Fix XSCALE serial ports, e.g. ce4100
  serial: bfin_5xx: fix off-by-one with resource size
  drivers/tty: use printk_ratelimited() instead of printk_ratelimit()
  tty: n_gsm: Added refcount usage to gsm_mux and gsm_dlci structs
  tty: n_gsm: Add raw-ip support
  tty: n_gsm: expose gsmtty device nodes at ldisc open time
  pch_phub: Fix register miss-setting issue
  serial: 8250, increase PASS_LIMIT
  ...
2011-07-25 23:09:27 -07:00
Nicolas Pitre 632b7cf6c0 ARM: mach-s3c2400: delete
On Tue, 28 Jun 2011, Ben Dooks wrote:

> On Tue, Jun 28, 2011 at 11:22:57PM +0200, Arnd Bergmann wrote:
>
> > On a related note, what about mach-s3c2400? It seems to be even more
> > incomplete.
>
> Probably the same fate awaits that. It is so old that there's little
> incentive to do anything with it.

So out it goes as well.

The PORT_S3C2400 definition in include/linux/serial_core.h is left there
to prevent a reuse of the same number for another port type.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2011-07-18 10:59:26 -04:00