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SCIF modules which have SCSPTR can output the break signal. Now that we
have a way of determining port features/capabilities, add trivial break
control via SCSPTR support. Tested on sh7757lcr.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull TTY updates from Greg Kroah-Hartman:
"Here's the big TTY/serial driver pull request for the 3.5-rc1 merge
window.
Nothing major in here, just lots of incremental changes from Alan and
Jiri reworking some tty core things to behave better and to get a more
solid grasp on some of the nasty tty locking issues.
There are a few tty and serial driver updates in here as well.
All of this has been in the linux-next releases for a while with no
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'tty-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (115 commits)
serial: bfin_uart: Make MMR access compatible with 32 bits bf609 style controller.
serial: bfin_uart: RTS and CTS MMRs can be either 16-bit width or 32-bit width.
serial: bfin_uart: narrow the reboot condition in DMA tx interrupt
serial: bfin_uart: Adapt bf5xx serial driver to bf60x serial4 controller.
Revert "serial_core: Update buffer overrun statistics."
tty: hvc_xen: NULL dereference on allocation failure
tty: Fix LED error return
tty: Allow uart_register/unregister/register
tty: move global ldisc idle waitqueue to the individual ldisc
serial8250-em: Add DT support
serial8250-em: clk_get() IS_ERR() error handling fix
serial_core: Update buffer overrun statistics.
tty: drop the pty lock during hangup
cris: fix missing tty arg in wait_event_interruptible_tty call
tty/amiserial: Add missing argument for tty_unlock()
tty_lock: Localise the lock
pty: Lock the devpts bits privately
tty_lock: undo the old tty_lock use on the ctty
serial8250-em: Emma Mobile UART driver V2
Add missing call to uart_update_timeout()
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controller.
Simplify serial data width calculation and adapt to bf609 LCR bit mask.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Change hardware flow control code to adapt to both bf5xx and bf60x.
Disabled serial device before set termios for bf60x.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Check if xmit buffer pointers are set to zero.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The serial4 controller on bf60x is an enhanced version of serial controller
on bf5xx. MMR size is 32 bits other than 16 bits. MMR GCTL, MCR and LCR are
combined into one control MMR. MSR and LSR are combined into one status MMR.
This patch adapts current bf5xx serial driver to serial4 controller on bf60x.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit 642180871bc91afebb6ccf40d1615a7dd33699a3.
Buffer overruns are for hardware reported overruns, not software ones,
which will only happen if we run out of memory and you will get lots of
-ENOMEM errors at the same time.
Thanks to Alan Cox for catching this.
Reported-by: Alan Cox <alan@linux.intel.com>
Cc: Corbin Atkinson <corbinat@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This is legitimate but because we don't clear the drv->state pointer in the
unregister code causes a bogus BUG().
Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=42880
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Update the 8250_em driver to support DT.
Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Update the 8250_em driver to correctly handle the case
where no clock is associated with the device.
The return value of clk_get() needs to be checked with
IS_ERR() to avoid NULL pointer referencing.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently, serial drivers don't report buffer overruns. When a buffer overrun
occurs, tty_insert_flip_char returns 0, and no attempt is made to insert that
same character again (i.e. it is lost). This patch reports buffer overruns via
the buf_overrun field in the port's icount structure.
Signed-off-by: Corbin Atkinson <corbin.atkinson@ni.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commit d29f3ef39be4eec0362b985305fc526d9be318cf
"tty_lock: Localise the lock"
added a tty arg to wait_event_interruptible_tty() but it missed
this arch specific instance for cris, causing a compile failure.
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In each remaining case the tty_lock is associated with a specific tty. This
means we can now lock on a per tty basis. We do need tty_lock_pair() for
the pty case. Uglier but still a step in the right direction.
[fixed up calls in 3 missing drivers - gregkh]
Signed-off-by: Alan Cox <alan@linux.intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This is V2 of the Emma Mobile 8250 platform driver.
The hardware itself has according to the data sheet
up to 64 byte FIFOs but at this point we only make
use of the 16550 compatible mode.
To support this piece of hardware the common UART
registers need to be remapped, and the access size
differences need to be handled.
The DLL and DLM registers can due to offset collision
not be remapped easily, and because of that this
driver makes use of ->dl_read() and ->dl_write()
callbacks. This in turn requires a registration
function that takes 8250-specific paramenters.
Future potential enhancements include DT support,
early platform driver console and fine grained PM.
Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Alan Cox <alan@linux.intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes a problem reported here:
http://article.gmane.org/gmane.linux.ports.arm.kernel/155242/match=auart
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Introduce yet another 8250 registration function.
This time it is serial8250_register_8250_port() and it
allows us to register 8250 hardware instances using struct
uart_8250_port. The new function makes it possible to
register 8250 hardware that makes use of 8250 specific
callbacks such as ->dl_read() and ->dl_write().
Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Get rid of unused functions and macros now when
Alchemy and RM9K are converted over to callbacks.
Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Convert the 8250 RM9K support code to make
use of the new dl_read()/dl_write() callbacks.
Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Convert the 8250 Alchemy support code to make
use of the new dl_read()/dl_write() callbacks.
Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Convert serial_dl_read() and serial_dl_write() from macro
to 8250 specific callbacks. This change makes it easier to
support 8250 hardware with non-standard DLL and DLM register
configurations such as Alchemy, RM9K and upcoming Emma Mobile
UART hardware.
Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We noticed that we were loosing data at speed less than 2400 baud.
It turned out our (TI16750 compatible) uart with 64 byte outgoing fifo
was truncated to 16 byte (bit 5 sets fifo len) when modifying the fcr
reg.
The input code still fills the buffer with 64 bytes if I remember
correctly and thus data is lost.
Our fix was to remove whiping of the fcr content and just add the
TRIGGER_1 which we want for latency.
I can't see why this would not work on less than 2400 always, for all
uarts ...
Otherwise one would have to make sure the filling of the fifo re-checks
the current state of available fifo size (urrk).
Signed-off-by: Christian Melki <christian.melki@ericsson.se>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The rules used to make 8250_pci "ignore" the PCH uarts are lacking pci subids
entries, preventing it to match and thus is breaking serial port support for
theses systems.
This has been tested on a nanoETXexpress-TT, which has a specifici uart clock.
Tested-by: Erwan Velu <Erwan.Velu@zodiacaerospace.com>
[stable@: please apply to 3.0-stable, 3.2-stable and 3.3-stable]
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Arnaud Patard <apatard@hupstream.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This resolves the merge problem with:
drivers/tty/serial/pch_uart.c
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commit e86ff4a6 "serial/8250_pci: init-quirk msi support for kt serial
controller" introduced a regression in suspend/resume by causing msi's
to be enabled twice without an intervening disable.
00:16.3 Serial controller: Intel Corporation Patsburg KT Controller (rev 05) (prog-if 02 [16550])
Subsystem: Intel Corporation Device 7270
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 72
I/O ports at 4080 [size=8]
Memory at d1c30000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [c8] Power Management version 3
Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Kernel driver in use: serial
[ 365.250523] sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:16.3/msi_irqs'
[ 365.250525] Modules linked in: nls_utf8 ipv6 uinput sg iTCO_wdt
iTCO_vendor_support ioatdma dca i2c_i801 i2c_core wmi sd_mod ahci libahci isci
libsas libata scsi_transport_sas [last unloaded: scsi_wait_scan]
[ 365.250540] Pid: 9030, comm: kworker/u:1 Tainted: G W 3.3.0-isci-3.0.213+ #1
[ 365.250542] Call Trace:
[ 365.250545] [<ffffffff8115e955>] ? sysfs_add_one+0x99/0xad
[ 365.250548] [<ffffffff8102db8b>] warn_slowpath_common+0x85/0x9e
[ 365.250551] [<ffffffff8102dc96>] warn_slowpath_fmt+0x6e/0x70
[ 365.250555] [<ffffffff8115e8fa>] ? sysfs_add_one+0x3e/0xad
[ 365.250558] [<ffffffff8115e8b4>] ? sysfs_pathname+0x3c/0x44
[ 365.250561] [<ffffffff8115e8b4>] ? sysfs_pathname+0x3c/0x44
[ 365.250564] [<ffffffff8115e8b4>] ? sysfs_pathname+0x3c/0x44
[ 365.250567] [<ffffffff8115e8b4>] ? sysfs_pathname+0x3c/0x44
[ 365.250570] [<ffffffff8115e955>] sysfs_add_one+0x99/0xad
[ 365.250573] [<ffffffff8115f031>] create_dir+0x72/0xa5
[ 365.250577] [<ffffffff8115f194>] sysfs_create_dir+0xa2/0xbe
[ 365.250581] [<ffffffff81262463>] kobject_add_internal+0x126/0x1f8
[ 365.250585] [<ffffffff8126255b>] kset_register+0x26/0x3f
[ 365.250588] [<ffffffff8126275a>] kset_create_and_add+0x62/0x7c
[ 365.250592] [<ffffffff81293619>] populate_msi_sysfs+0x34/0x103
[ 365.250595] [<ffffffff81293e1c>] pci_enable_msi_block+0x1b3/0x216
[ 365.250599] [<ffffffff81303f7c>] try_enable_msi+0x13/0x17
[ 365.250603] [<ffffffff81303fb3>] pciserial_resume_ports+0x21/0x42
[ 365.250607] [<ffffffff81304041>] pciserial_resume_one+0x50/0x57
[ 365.250610] [<ffffffff81283e1a>] pci_legacy_resume+0x38/0x47
[ 365.250613] [<ffffffff81283e7d>] pci_pm_restore+0x54/0x87
[ 365.250616] [<ffffffff81283e29>] ? pci_legacy_resume+0x47/0x47
[ 365.250619] [<ffffffff8131e9e8>] dpm_run_callback+0x48/0x7b
[ 365.250623] [<ffffffff8131f39a>] device_resume+0x342/0x394
[ 365.250626] [<ffffffff8131f5b7>] async_resume+0x21/0x49
That patch has since been reverted, but by inspection it seems that
pciserial_suspend_ports() should be invoking .exit() quirks to release
resources acquired during .init().
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When using Serial Over Lan (SOL) over the virtual serial port in a Intel
management engine (ME) device, on device reset the serial FIFOs need to
be cleared to keep the FIFO indexes in-sync between the host and the
engine.
On a reset the serial device assertes BI, so using that as a cue FIFOs
are cleared. So for this purpose a new handle_break callback has been
added. One other problem is that the serial registers might temporarily
go to 0 on reset of this device. So instead of using the IER register
read, if 0 returned use the ier value in uart_8250_port. This is hidden
under a custom serial_in.
Cc: Nhan H Mai <nhan.h.mai@intel.com>
Signed-off-by: Sudhakar Mamillapalli <sudhakar@fb.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This allows us to pick up some changes needed for other serial patches.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The "KT" serial port has another use case for a "received break" quirk,
so before adding another special case to the 8250 core take this
opportunity to push such quirks out of the core and into a uart_port op.
Stephen says:
"If the callback function is to no longer live in 8250.c itself,
arch/arm/mach-tegra/devices.c isn't logically a good place to put it,
and that file will be going away once we get rid of all the board files
and move solely to device tree."
...so since 8250_pci.c houses all the quirks for pci serial devices this
quirk is similarly housed in of_serial.c. Once the open firmware
conversion completes the infrastructure details
(include/linux/of_serial.h, and the export) can all be removed to make
this self contained to of_serial.c.
Cc: Nhan H Mai <nhan.h.mai@intel.com>
Cc: Colin Cross <ccross@android.com>
Cc: Olof Johansson <olof@lixom.net>
[stephen: kill CONFIG_SERIAL_TEGRA in favor just using CONFIG_ARCH_TEGRA]
Cc: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sudhakar Mamillapalli <sudhakar@fb.com>
Reported-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently the errata is populated based on cpu checks this can
be removed and replaced with module version check of uart ip block.
MVR reg is provided within the uart reg map use the same
to populate the errata and thus now errata population and handling
can be managed within the driver itself.
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Reviewed-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Problem Observed:
- interrupt status is set by rising or falling edge on CTS line
- interrupt status is cleared on a .0. to .1. transition of the
interrupt-clear register bit 1.
- interrupt-clear register is reset by hardware once the interrupt
status is .0..
Remark: It seems not possible to read this register back by the
CPU though, but internally this register exists.
- when simultaneous set and reset event on the interrupt status
happens, then the set-event has priority and the status remains
.1.. As a result the interrupt-clear register is not reset to
.0., and no new .0. to .1. transition can be detected on it when
writing a .1. to it.
This implies race condition, the clear must be performed at least
one UARTCLK the riding edge of CTS RIS interrupt.
Fix:
Instead of resetting UART as done in commit
c16d51a32bbb61ac8fd96f78b5ce2fccfe0fb4c3
"amba pl011: workaround for uart registers lockup" do the
following:
write .0. and then .1. to the interrupt-clear register to make
sure that this transition is detected. According to the datasheet
writing a .0. does not have any effect, but actually it allows to
reset the internal interrupt-clear register.
Take into account:
The .0. needs to last at least for one clk_uart clock period
(~ 38 MHz, 26.08ns)
This way we can do away with the tasklet and keep only a tiny
fix triggered by the variant flag introduced in this patch.
Signed-off-by: Guillaume Jaunet <guillaume.jaunet@stericsson.com>
Signed-off-by: Christophe Arnal <christophe.arnal@stericsson.com>
Signed-off-by: Matthias Locher <Matthias.Locher@stericsson.com>
Signed-off-by: Rajanikanth H.V <rajanikanth.hv@stericsson.com>
Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add initialize variable to prevent duplicate free memory.
Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently, occurring line status interrupt,
returned value is not set in interrupt handler function.
As a result, 0 can be returned.
This patch adds setting returned value.
Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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%02x format is easier to understand better than %d.
Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Target uart register access size is 8bit.
However, 32bit is used at 2 points.
This patch modifies type "unsigned int" to "unsigned char".
Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Since the code is identical, use the tty_port_block_til_ready helper
instead of re-implemented variant.
The code does not perform rtsdts handling, hence we do not need to
provide tty port hooks for them. The default ones will be used
instead. The only necessary thing is to provide tty_port_operations.
It is empty, but has to be there...
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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And refcount that properly.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We need tty at some places, but info->tty might be NULL at those. Let
us propagate tty from callers where we know we have a valid tty. This
will make a switch to tty refcounting simpler.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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And use count and blocked_count from that.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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All the needed stuff is moved to 68328serial.c now.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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flags passed to local_irq_save/restore should be ulong. Switch tehem
to that. Otherwise we get compilation warnings:
.../68328serial.c:248:9: warning: comparison of distinct pointer types lacks a cast [enabled by default]
.../68328serial.c:257:9: warning: comparison of distinct pointer types lacks a cast [enabled by default]
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- empty functions
- unused global variables
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Not everything from struct m68k_serial is really used. So remove
unused or only-set members of that structure. Next step is to move it
to 68328serial.c and remove 68328serial.h completely.
This change also takes status_handle and batten_down_hatches away
since they use break_abort but do nothing.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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serial_state in 68328serial.h is a duplicated structure. One is
defined in linux/serial.h. So let us use that instead. And since the
serial flags are identical, use ones from there too.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Cc: linux-m68k@lists.linux-m68k.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The tty_port used in the driver is left uninitialized. Add the
initialization there.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Mikael Starvik <starvik@axis.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: linux-cris-kernel@axis.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This used to be a helper buffer for generic_serial. generic_serial is
gone, tmp_buf shall be removed.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Mikael Starvik <starvik@axis.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: linux-cris-kernel@axis.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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