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* cpm1: don't send break on TX_STOP, don't interrupt RX/TX when adjusting ↵Nye Liu2008-07-24
| | | | | | | | | | | | | | | | | | | termios parameters Before setting STOP_TX, set _brkcr to 0 so the SMC does not send a break character. The driver appears to properly re-initialize _brkcr when the SMC is restarted. Do not interrupt RX/TX when the termios is being adjusted; it results in corrupted characters appearing on the line. Cc: Vitaly Bordug <vbordug@ru.mvista.com> Cc: Scott Wood <scottwood@freescale.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* serial: DZ11: avoid a hang at console switch-overMaciej W. Rozycki2008-07-24
| | | | | | | | | | | | | | | | | | | | | | Changes to the generic console support code that happened a while ago introduced a scenario where the initial console is used in parallel with the final console during a brief period when switching between the two is in progress. During that time a message about the switch-over is printed. With some combinations of chips, firmware and drivers, such as the DEC DZ11 clone used with the DECstation, a hang may happen because the firmware used for the initial console may not expect the state of the chip after it has been initialised by the driver. This is a workaround for the DZ11 which reuses the power-management callback to keep the transmitter of the line associated with the console enabled. It reflects the consensus reached in a discussion a while ago. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: Jiri Slaby <jirislaby@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* serial: Z85C30: avoid a hang at console switch-overMaciej W. Rozycki2008-07-24
| | | | | | | | | | | | | | | | | | | | | | | Changes to the generic console support code that happened a while ago introduced a scenario where the initial console is used in parallel with the final console during a brief period when switching between the two is in progress. During that time a message about the switch-over is printed. With some combinations of chips, firmware and drivers, such as the Zilog Z85C30 SCC used with the DECstation, a hang may happen because the firmware used for the initial console may not expect the state of the chip after it has been initialised by the driver. This is not a bug in the firmware, as some registers it would have to examine are write-only. This is a workaround for the Z85C30 which reuses the power-management callback to keep the transmitter of the line associated with the console enabled. It reflects the consensus reached in a discussion a while ago. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: Jiri Slaby <jirislaby@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* serial: add support for a no-name 4 ports multiserial cardCatalin(ux) M BOIE2008-07-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is a no-name PCI card. I found no reference to a producer so I used "UNKNOWN_0x1584" as the name. Full lspci: 01:07.0 0780: 10b5:9050 (rev 01) Subsystem: 10b5:1584 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- \ ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- \ DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Interrupt: pin A routed to IRQ 10 Region 1: I/O ports at ec00 [size=128] Region 2: I/O ports at e480 [size=32] Region 3: I/O ports at e400 [size=8] Capabilities: [40] Power Management version 1 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA \ PME(D0+,D1-,D2-,D3hot+,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [48] #06 [0080] Capabilities: [4c] Vital Product Data After: 0000:01:07.0: ttyS4 at I/O 0xe480 (irq = 10) is a 16550A 0000:01:07.0: ttyS5 at I/O 0xe488 (irq = 10) is a 16550A 0000:01:07.0: ttyS6 at I/O 0xe490 (irq = 10) is a 16550A 0000:01:07.0: ttyS7 at I/O 0xe498 (irq = 10) is a 16550A Signed-off-by: Catalin(ux) M BOIE <catab@embedromix.ro> Acked-by: Alan Cox <alan@redhat.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 8250: fix break handling for Intel 82571Aristeu Rozanski2008-07-24
| | | | | | | | | | | | Intel 82571 has a "Serial Over LAN" feature that doesn't properly implements the receiving of break characters. When a break is received, it doesn't set UART_LSR_DR and unless another character is received, the break won't be received by the application. Signed-off-by: Aristeu Rozanski <arozansk@redhat.com> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* serial/8250_gsc.c: add MODULE_LICENSEAdrian Bunk2008-07-24
| | | | | | | | | This patch adds the missing MODULE_LICENSE("GPL"). Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* remove the v850 portAdrian Bunk2008-07-24
| | | | | | | | | | | | | | | | | | | Trying to compile the v850 port brings many compile errors, one of them exists since at least kernel 2.6.19. There also seems to be noone willing to bring this port back into a usable state. This patch therefore removes the v850 port. If anyone ever decides to revive the v850 port the code will still be available from older kernels, and it wouldn't be impossible for the port to reenter the kernel if it would become actively maintained again. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* kgdb: kgdboc console poll hooks for mpsc uartJason Wessel2008-07-23
| | | | | | | Add in console polling hooks for the mpsc uart for use with kgdb and kgdboc. Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
* kgdb: kgdboc console poll hooks for cpm uartJason Wessel2008-07-23
| | | | | | | | Add in console polling hooks for the cpm uart for use with kgdb and kgdboc. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> CC: galak@kernel.crashing.org
* port_fixups: Fix ups for tty port changesAlan Cox2008-07-22
| | | | | | | | I missed the cpm_uart one. Thanks to Kumar Gala for reporting it. A double check found samsung also needed fixing up. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* serial: 8250: fix shared interrupts issues with SMP and RT kernelsAnton Vorontsov2008-07-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With SMP kernels _irqsave spinlock disables only local interrupts, while the shared serial interrupt could be assigned to the CPU that is not currently starting up the serial port. This might cause issues because serial8250_startup() routine issues IRQ-triggering operations before registering the port in the IRQ chain (though, this is fine to do and done explicitly because we don't want to process any interrupts on the port startup). With RT kernels and preemptable hardirqs, _irqsave spinlock does not disable local hardirqs, and the bug could be reproduced much easily: $ cat /dev/ttyS0 & $ cat /dev/ttyS1 irq 42: nobody cared (try booting with the "irqpoll" option) Call Trace: [C0475EB0] [C0008A98] show_stack+0x4c/0x1ac (unreliable) [C0475EF0] [C004BBD4] __report_bad_irq+0x34/0xb8 [C0475F10] [C004BD38] note_interrupt+0xe0/0x308 [C0475F50] [C004B09C] thread_simple_irq+0xdc/0x104 [C0475F70] [C004B3FC] do_irqd+0x338/0x3c8 [C0475FC0] [C00398E0] kthread+0xf8/0x100 [C0475FF0] [C0011FE0] original_kernel_thread+0x44/0x60 handlers: [<c02112c4>] (serial8250_interrupt+0x0/0x138) Disabling IRQ #42 After this, all serial ports on the given IRQ are non-functional. To fix the issue we should explicitly disable shared IRQ before issuing any IRQ-triggering operations. I also changed spin_lock_irqsave to the ordinary spin_lock, since it seems to be safe: chain does not contain new port (yet), thus nobody will interfere us from the ISRs. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* tty: rework break handlingAlan Cox2008-07-22
| | | | | | | | | Some hardware needs to do break handling itself and may have partial support only. Make break_ctl return an error code. Add a tty driver flag so you can indicate driver hardware side break support. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ttydev: Fix up compile failures in the PPC buildAlan Cox2008-07-22
| | | | | | | Fix up a couple of reported merge problems Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* atmel_serial: Fix tty_port breakageHaavard Skinnemoen2008-07-20
| | | | | | | | | | | | | | | | | | The tty pointer has been moved into a tty_port field, so we need to use ->info->port.tty instead of just ->info->tty. Fixes these build errors: David Brownell <david-b@pacbell.net> wrote: > drivers/serial/atmel_serial.c: In function 'atmel_rx_from_ring': > drivers/serial/atmel_serial.c:665: error: 'struct uart_info' has no member named 'tty' > drivers/serial/atmel_serial.c: In function 'atmel_rx_from_dma': > drivers/serial/atmel_serial.c:672: error: 'struct uart_info' has no member named 'tty' > drivers/serial/atmel_serial.c: In function 'atmel_startup': > drivers/serial/atmel_serial.c:797: error: 'struct uart_info' has no member named 'tty' > make[2]: *** [drivers/serial/atmel_serial.o] Error 1 Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Fix compile errors in SGI console drivers (linux-next tree)Takashi Iwai2008-07-20
| | | | | | | | | | The below is the patch to replace blindly all possible places, including Jack's fixes. Signed-off-by: Takashi Iwai <tiwai@suse.de> (Reviewed and checked rather than blindly added) Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* - Fix compile errors in SGI console drivers (linux-next tree)Jack Steiner2008-07-20
| | | | | | | | | Fix compile errors in SGI console drivers caused by changes to the tty_port structures in the linux-next tree. Signed-off-by: Jack Steiner <steiner@sgi.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ttydev: fix pamc_zilog for tty pointer moveStephen Rothwell2008-07-20
| | | | | | | | | | | | | | | | | | Today's linux-next build (powerpc allyesconfig) failed like this: drivers/serial/pmac_zilog.c: In function 'pmz_receive_chars': drivers/serial/pmac_zilog.c:245: error: 'struct uart_info' has no member named 'tty' drivers/serial/pmac_zilog.c:250: error: 'struct uart_info' has no member named 'tty' I applied the patch below (which builds but may, or may not, be correct). -- Cheers, Stephen Rothwell sfr@canb.auug.org.au http://www.canb.auug.org.au/~sfr/ Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ttydev: fix pamc_zilog for tty pointer moveStephen Rothwell2008-07-20
| | | | | | | | | | | | | | | | | Today's linux-next build (sparc64 defconfig) failed like this: drivers/serial/sunhv.c: In function `receive_chars': drivers/serial/sunhv.c:188: error: structure has no member named `tty' drivers/serial/sunsu.c: In function `receive_chars': drivers/serial/sunsu.c:314: error: structure has no member named `tty' drivers/serial/sunsab.c: In function `receive_chars': drivers/serial/sunsab.c:121: error: structure has no member named `tty' I applied the following patch (which, again, may not be correct). Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* serial: use tty_portAlan Cox2008-07-20
| | | | | | | | | Switch the serial_core based drivers to use the new tty_port structure. We can't quite use all of it yet because of the dynamically allocated extras in the serial_core layer. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/serial/: remove CVS keywordsAdrian Bunk2008-07-20
| | | | | | | | | | | | | This patch removes CVS keywords that weren't updated for a long time in comments, printk's and MODULE_DESCRIPTION's (no printk's or MODULE_DESCRIPTION's are completely removed). While doing this I also found and fixed a missing \n in a printk in m32r_sio.c Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Subject: [PATCH 2/2] atmel_serial: Implement flush_buffer() hookHaavard Skinnemoen2008-07-20
| | | | | | | | | Avoid dumping garbage to the serial port when the tty is flushed. This tends to happen when rebooting from a serial console. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Subject: [PATCH 1/2] serial: Add flush_buffer() operation to uart_opsHaavard Skinnemoen2008-07-20
| | | | | | | | | | | | | | | | | Serial drivers using DMA (like the atmel_serial driver) tend to get very confused when the xmit buffer is flushed and nobody told them. They also tend to spew a lot of garbage since the DMA engine keeps running after the buffer is flushed and possibly refilled with unrelated data. This patch adds a new flush_buffer operation to the uart_ops struct, along with a call to it from uart_flush_buffer() right after the xmit buffer has been cleared. The driver can implement this in order to syncronize its internal DMA state with the xmit buffer when the buffer is flushed. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PNP: add pnp_possible_config() -- can a device could be configured this way?Bjorn Helgaas2008-07-16
| | | | | | | | | | | | | | | | As part of a heuristic to identify modem devices, 8250_pnp.c checks to see whether a device can be configured at any of the legacy COM port addresses. This patch moves the code that traverses the PNP "possible resource options" from 8250_pnp.c to the PNP subsystem. This encapsulation is important because a future patch will change the implementation of those resource options. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
* Merge commit '85082fd7cbe3173198aac0eb5e85ab1edcc6352c' into test-buildBenjamin Herrenschmidt2008-07-15
|\ | | | | | | | | Manual fixup of: arch/powerpc/Kconfig
| * Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2008-07-14
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (241 commits) [ARM] 5171/1: ep93xx: fix compilation of modules using clocks [ARM] 5133/2: at91sam9g20 defconfig file [ARM] 5130/4: Support for the at91sam9g20 [ARM] 5160/1: IOP3XX: gpio/gpiolib support [ARM] at91: Fix NAND FLASH timings for at91sam9x evaluation kits. [ARM] 5084/1: zylonite: Register AC97 device [ARM] 5085/2: PXA: Move AC97 over to the new central device declaration model [ARM] 5120/1: pxa: correct platform driver names for PXA25x and PXA27x UDC drivers [ARM] 5147/1: pxaficp_ir: drop pxa_gpio_mode calls, as pin setting [ARM] 5145/1: PXA2xx: provide api to control IrDA pins state [ARM] 5144/1: pxaficp_ir: cleanup includes [ARM] pxa: remove pxa_set_cken() [ARM] pxa: allow clk aliases [ARM] Feroceon: don't disable BPU on boot [ARM] Orion: LED support for HP mv2120 [ARM] Orion: add RD88F5181L-FXO support [ARM] Orion: add RD88F5181L-GE support [ARM] Orion: add Netgear WNR854T support [ARM] s3c2410_defconfig: update for current build [ARM] Acer n30: Minor style and indentation fixes. ...
| | * Merge branch 'imx' into develRussell King2008-07-10
| | |\ | | | | | | | | | | | | | | | | | | | | Conflicts: arch/arm/mm/Kconfig
| | | * MX2 add support for mx2 in i.MX serial driverSascha Hauer2008-07-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | add support for mx2 in i.MX serial driver Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| | | * mxc: add MX3 support for i.MX internal UART driverSascha Hauer2008-07-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds MX3 support for the i.MX internal uart driver. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| | | * IMX: introduce clock APISascha Hauer2008-07-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch introduces the clock API for i.MX and converts all in-Kernel drivers to use it. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| | | * IMX UART: remove statically initialized tablesSascha Hauer2008-07-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the statically initialized tables from the i.MX serial driver and makes the driver fully dependent on the information provided by the platform_device. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| | | * IMX UART: Add board specific init/exit functionsSascha Hauer2008-07-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add platform specific init functions. Also rename the struct platform_device dev into pdev. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| | | * IMX UART: do not assume 16MHz reference frequencySascha Hauer2008-07-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We assumed a 16MHz reference frequency for the UART. While this is true for i.MX1 most of the time it is not true for MX27/MX31. Also, add handling for the ONEMS register which is present on newer versions of the chip and pass a sane minimum baudrate to uart_get_baud_rate(). Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| | * | [ARM] S3C24XX: Split serial driver into core and per-cpu driversBen Dooks2008-07-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The S3C2410 serial driver in drivers/serial/s3c2410.c has been growing bigger with the addition of more variants of this hardware with the growing Samsung SoCs range. As such, it would be easier to split this code up into a core and per-cpu drivers to make driver addition easier, and the core smaller. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | * | [ARM] S3C2410: Add sysfs attribute for serial driver clock sourceBen Dooks2008-07-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add attribute to show the current clock source for the serial driver and remove old and annoying debug output. Note, this only currently shows the current source with a "* " prefix to indicate that it is the current source. Future code will list all the clock sources, with the non-selected one with " " prefix. Signed-off-by: Ben Dooks <ben-linux@fluff.org> PATCH FOLLOWS KernelVersion: 2.6.26-rc3
| | * | [ARM] 5054/1: S3C2410: Add GPLv2 license to the s3c2410 serial driverBen Dooks2008-07-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The original driver had an MODULE_LICENSE statement for GPL, but no explict license in the header of the file. To make this more explicit, and since I am the original authour, we will add a GPLv2 header. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 5050/1: S3C2410: Cleanup header on S3C2410 serial driverBen Dooks2008-07-03
| | |/ | | | | | | | | | | | | | | | | | | | | | Remove the changelog which should really be found in the version control system. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | Merge git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6Linus Torvalds2008-07-14
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: (31 commits) avr32: Fix typo of IFSR in a comment in the PIO header file avr32: Power Management support ("standby" and "mem" modes) avr32: Add system device for the internal interrupt controller (intc) avr32: Add simple SRAM allocator avr32: Enable SDRAMC clock at startup rtc-at32ap700x: Enable wakeup macb: Basic suspend/resume support atmel_serial: Drain console TX shifter before suspending atmel_serial: Fix build on avr32 with CONFIG_PM enabled avr32: Use a quicklist for PTE allocation as well avr32: Use a quicklist for PGD allocation avr32: Cover the kernel page tables in the user PGDs avr32: Store virtual addresses in the PGD avr32: Remove useless zeroing of swapper_pg_dir at startup avr32: Clean up and optimize the TLB operations avr32: Rename at32ap.c -> pdc.c avr32: Move setup_platform() into chip-specific file avr32: Kill special exception handler sections avr32: Kill unneeded #include <asm/pgalloc.h> from asm/mmu_context.h avr32: Clean up time.c #includes ...
| | * | atmel_serial: Drain console TX shifter before suspendingHaavard Skinnemoen2008-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Funny things may happen if we stop the USART clock before the shifter is empty. Prevent this from happening by waiting until the shifter is completely drained before allowing suspend to continue. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Cc: Andrew Victor <linux@maxim.org.za>
| | * | atmel_serial: Fix build on avr32 with CONFIG_PM enabledHaavard Skinnemoen2008-07-02
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | AVR32 doesn't have at91_suspend_entering_slow_clock(). Just assume the clock will keep running for now. David has a better solution for this, but this works for now. Leaving the USART clock running won't prevent the PM code from entering deep power-down modes anyway. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: David Brownell <david-b@pacbell.net> Cc: Andrew Victor <linux@maxim.org.za>
* | | cpm_uart: Support uart_wait_until_sent()Laurent Pinchart2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Set port->fifosize to the software FIFO size, and update the port timeout when the baud rate is modified. SCC ports have an optional 32 byte hardware FIFO which is currently not taken into account, as there is no documented way to check when the FIFO becomes empty. Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | | cpm_uart: Fix cpm uart corruption with PREEMPT_RTRune Torgersen2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | Fix CPM serial port corruption when running with CONFIG_PREEMPT_RT. Userland usage of console, and kernel printf's were stepping on each others toes. Also only take lock if not in an oops. Signed-off-by: Rune Torgersen <runet@innovsys.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | | Merge commit 'origin/HEAD' into test-mergeBenjamin Herrenschmidt2008-07-14
|\| | | | | | | | Manual fixup of include/asm-powerpc/pgtable-ppc64.h
| * | serial8250: sanity check nr_uarts on all paths.Eric W. Biederman2008-07-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I had 8250.nr_uarts=16 in the boot line of a test kernel and I had a weird mysterious crash in sysfs. After taking an in-depth look I realized that CONFIG_SERIAL_8250_NR_UARTS was set to 4 and I was walking off the end of the serial8250_ports array. Ouch!!! Don't let this happen to someone else. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Alan Cox <alan@redhat.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | serial: fix serial_match_port() for dynamic major tty-device numbersGuennadi Liakhovetski2008-07-04
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As reported by Vipul Gandhi, the current serial_match_port() doesn't work for tty-devices using dynamic major number allocation. Fix it. It oopses if you suspend a serial port with _dynamic_ major number. ATM, I think, there's only the drivers/serial/jsm/jsm_driver.c driver, that does it in-tree. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Tested-by: Vipul Gandhi <vcgandhi1@aol.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'linux-2.6'Paul Mackerras2008-06-29
|\|
| * Blackfin Serial Driver: Use timer to poll CTS PIN instead of workqueue.Sonic Zhang2008-06-19
| | | | | | | | | | | | | | | | | | This allows other threads to run when the serial driver polls the CTS PIN in a loop. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin serial driver: fix up tty core set_ldisc API change breakage bugGraf Yang2008-06-07
| | | | | | | | | | | | | | | | | | This is the patch that follows Linus's modification about set_ldisc. Graf has built and tested it on BF537 using Linus's git Tree. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin Serial Driver: Clean up BF54x macro in blackfin UART driver.Sonic Zhang2008-06-03
| | | | | | | | | | | | | | | | Hide difference in head file. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* | cpm_uart: Remove !CONFIG_PPC_CPM_NEW_BINDING codeKumar Gala2008-06-26
| | | | | | | | | | | | | | Now that arch/ppc is gone we always define CONFIG_PPC_CPM_NEW_BINDING so we can remove all the code associated with !CONFIG_PPC_CPM_NEW_BINDING. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | cpm_uart: fix whitespace issuesKumar Gala2008-06-26
| | | | | | | | Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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