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path: root/drivers/serial
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2010-08-04Merge branch 'master' into for-nextJiri Kosina
2010-07-31Merge branch 'misc' into develRussell King
Conflicts: arch/arm/mm/init.c
2010-07-27ARM: Fix section build warnings for AMBA driversRussell King
Found in the Versatile build: WARNING: drivers/built-in.o(.data+0x14c): Section mismatch in reference from the variable pl061_gpio_driver to the (unknown reference) .init.data:(unknown) The variable pl061_gpio_driver references the (unknown reference) __initdata (unknown) WARNING: drivers/built-in.o(.data+0x40f8): Section mismatch in reference from the variable pl011_driver to the (unknown reference) .init.data:(unknown) The variable pl011_driver references the (unknown reference) __initdata (unknown) WARNING: drivers/built-in.o(.data+0x5ab4): Section mismatch in reference from the variable pl031_driver to the (unknown reference) .init.data:(unknown) The variable pl031_driver references the (unknown reference) __initdata (unknown) Basically, amba_id structures must not be __initdata. Also fix: WARNING: drivers/built-in.o(.data+0x138): Section mismatch in reference from the variable pl061_gpio_driver to the function .init.text:pl061_probe() The variable pl061_gpio_driver references the function __init pl061_probe() which is an incorrectly annotated probe function. Fix it to reflect the other AMBA bus probe functions by removing the __init attributation. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-27ARM: 6158/2: PL011 baudrate extension for ST-Ericssons derivativeLinus Walleij
Implementation of the ST-Ericsson baudrate extension in the PL011 block. In this modified variant it is possible to change the sampling factor from 16 to 8, and thanks to this we can get higher baudrates while still using the same peripheral clock. Also replace the simple division to determine the baud divisor with DIV_ROUND_CLOSEST() rather than a simple integer division. Cc: Alessandro Rubini <rubini@unipv.it> Cc: Jerzy Kasenberg <jerzy.kasenberg@tieto.com> Signed-off-by: Marcin Mielczarczyk <marcin.mielczarczyk@tieto.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-27ARM: 6157/2: PL011 TX/RX split of LCR for ST-Ericssons derivativeLinus Walleij
In the ST-Ericsson version of the PL011 the TX and RX have different control registers. Cc: Alessandro Rubini <rubini@unipv.it> Signed-off-by: Marcin Mielczarczyk <marcin.mielczarczyk@tieto.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-26serial: fix rs485 for atmel_serial on avr32Peter Huewe
This patch fixes a build failure [1-4] in the atmel_serial code introduced by patch the patch ARM: 6092/1: atmel_serial: support for RS485 communications (e8faff7330a3501eafc9bfe5f4f15af444be29f5) The build failure was caused by missing struct field and missing defines for the avr32 board - the patch fixes this. [1] http://kisskb.ellerman.id.au/kisskb/buildresult/2575242/ - first failure in linux-next, may 11th [2] http://kisskb.ellerman.id.au/kisskb/buildresult/2816418/ - still exists as of today [3] http://kisskb.ellerman.id.au/kisskb/buildresult/2617511/ - first failure in Linus' tree - May 20th - did really no one notice this?! [4] http://kisskb.ellerman.id.au/kisskb/buildresult/2813956/ - still exists in Linus' tree as of today Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-07-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: math-emu: correct test for downshifting fraction in _FP_FROM_INT() perf: Add DWARF register lookup for sparc MAINTAINERS: Add SBUS driver path to sparc entry. drivers/sbus: Remove unnecessary casts of private_data sparc: remove homegrown L1_CACHE_ALIGN macro sparc64: fix the build error due to smp_kgdb_capture_client() sparc64: Fix maybe_change_configuration() PCR setting. arch/sparc/kernel: Eliminate what looks like a NULL pointer dereference sparc64: Update defconfig. sunsu: Fix use after free in su_remove(). sunserial: Don't call add_preferred_console() when console= is specified. sparc32: Kill none_mask, it's bogus.
2010-07-19comment typo fixes: charater => characterThomas Weber
Fix typo in comments. Replace charater with character. Characteristics too. Signed-off-by: Thomas Weber <weber@corscience.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-07-12fix comnment/printk typos concerning "empty"Uwe Kleine-König
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-06-30serial: cpm_uart: implement the cpm_uart_early_write() function for console pollDongdong Deng
The cpm_uart_early_write() function which was used for console poll isn't implemented in the cpm uart driver. Implementing this function both fixes the build when CONFIG_CONSOLE_POLL is set and allows kgdboc to work via the cpm uart. Signed-off-by: Dongdong Deng <dongdong.deng@windriver.com> Reviewed-by: Bruce Ashfield <bruce.ashfield@windriver.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (52 commits) phylib: Add autoload support for the LXT973 phy. ISDN: hysdn, fix potential NULL dereference vxge: fix memory leak in vxge_alloc_msix() error path isdn/gigaset: correct CAPI connection state storage isdn/gigaset: encode HLC and BC together isdn/gigaset: correct CAPI DATA_B3 Delivery Confirmation isdn/gigaset: correct CAPI voice connection encoding isdn/gigaset: honor CAPI application's buffer size request cpmac: do not leak struct net_device on phy_connect errors smc91c92_cs: fix the problem that lan & modem does not work simultaneously ipv6: fix NULL reference in proxy neighbor discovery Bluetooth: Bring back var 'i' increment xfrm: check bundle policy existance before dereferencing it sky2: enable rx/tx in sky2_phy_reinit() cnic: Disable statistics initialization for eth clients that do not support statistics net: add dependency on fw class module to qlcnic and netxen_nic snmp: fix SNMP_ADD_STATS() hso: remove setting of low_latency flag udp: Fix bogus UFO packet generation lasi82596: fix netdev_mc_count conversion ...
2010-06-26Merge branch 'master' of /home/davem/src/GIT/linux-2.6/David S. Miller
2010-06-16pcnet_cs: add new id (TOSHIBA Modem/LAN Card)Ken Kawasaki
pcnet_cs: serial_cs: add new id (TOSHIBA Modem/LAN Card) Signed-off-by: Ken Kawasaki <ken_kawasaki@spring.nifty.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-16Merge branch 'master' into for-nextJiri Kosina
2010-06-16fix typos concerning "initiali[zs]e"Uwe Kleine-König
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-06-04serial: add support for various Titan PCI cardsYegor Yefremov
serial: add support for various Titan PCI cards Models: 200I, 400I, 800I, 400EH, 800EH, 800EHB, 100E, 200E, 400E, 800E, 200EI, 200EISI Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04serial: altera_uart: Proper section for altera_uart_removeTobias Klauser
altera_uart_remove should be in .devexit.text Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04altera_uart: Simplify altera_uart_console_putcTobias Klauser
The check for the TRDY flag after writing the character is not needed. Also do a cpu_relax() inside the loop. Pass a struct uart_port to altera_uart_console_putc, so we do not need to get it (and dereference pointers) for every character. Cc: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04altera_uart: Don't take spinlock in already protected functionsTobias Klauser
Don't take the port spinlock in uart functions where the serial core already takes care of locking/unlocking them. The code would actually lock up on architectures where spinlocks are implemented (not the case on nios2 where this driver is primarily used for now, thus this bug didn't trigger). Also protect calling altera_uart_rx_chars/altera_uart_tx_chars in the interrupt handler by the port spinlock. Thanks to Ian Abbott for pointing these issues out. Cc: Ian Abbott <abbotti@mev.co.uk> Cc: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04serial: bfin_5xx: fix typo in IER checkSonic Zhang
This most likely won't cause problems on systems as people don't typically enable GPIO RTS/CTS if they don't actually use it. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04serial: bfin_5xx: IRDA is not affected by anomaly 05000230Graf Yang
Anomaly 05000230 (over sampling of the UART STOP bit) applies only when the peripheral is operating in UART mode. So drop the anomaly handling when the UART is in IRDA mode. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04serial_cs: add and sort IDs for serial and modem cardsAlexander Kurz
Signed-off-by: Alexander Kurz <linux@kbdbabel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04msm_serial: fix serial on troutAbhijeet Dharmapurikar
Set the mnd counter based on uartclk. This fixes a problem on 7x30 where the uartclk is 19.2Mhz rather than the usual 4.8Mhz. Trout incorrectly reports uartclk to be running at 19.2Mhz It is actually running at 4.8Mhz. For trout force mnd counter values as if uartclk was fed by tcxo/4. Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org> [dwalker@codeaurora.org: inlined, moved into header, added comments.] Signed-off-by: Daniel Walker <dwalker@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-02powerpc/macio: Fix probing of macio devices by using the right of match tableBenjamin Herrenschmidt
Grant patches added an of mach table to struct device_driver. However, while he changed the macio device code to use that, he left the match table pointer in struct macio_driver and didn't update drivers to use the "new" one, thus breaking the probing. This completes the change by moving all drivers to setup the "new" one, removing all traces of the old one, and while at it (since it changes the exact same locations), I also remove two other duplicates from struct driver which are the name and owner fields. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-05-28ARM: S5PV210: serial: Fix section mismatch warningMarek Szyprowski
Rename the structure to avoid the following warning: WARNING: drivers/serial/built-in.o(.data+0x534): Section mismatch in reference from the variable s5p_serial_drv to the function .devexit.text:s3c24xx_serial_remove() The variable s5p_serial_drv references the function __devexit s3c24xx_serial_remove() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-26sunsu: Fix use after free in su_remove().David S. Miller
Real serial port 'up' objects are statically allocated from an array in the driver. Keyboard and mouse ports, on the other hand, are dynamically allocated. Unfortunately, we free these dynamic 'up' objects before we unmap the I/O registers. Rearrange su_remove() so that this does not happen. Noticed by Julia Lawall. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-25sunserial: Don't call add_preferred_console() when console= is specified.David S. Miller
Reported-by: Frans Pop <elendil@planet.nl> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-25Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds
* 'next-spi' of git://git.secretlab.ca/git/linux-2.6: spi/xilinx: Fix compile error spi/davinci: Fix clock prescale factor computation spi: move bitbang txrx utility functions to private header spi/mpc5121: Add SPI master driver for MPC5121 PSC powerpc/mpc5121: move PSC FIFO memory init to platform code spi/ep93xx: implemented driver for Cirrus EP93xx SPI controller Documentation/spi/* compile warning fix spi/omap2_mcspi: Check params before dereference or use spi/omap2_mcspi: add turbo mode support spi/omap2_mcspi: change default DMA_MIN_BYTES value to 160 spi/pl022: fix stop queue procedure spi/pl022: add support for the PL023 derivate spi/pl022: fix up differences between ARM and ST versions spi/spi_mpc8xxx: Do not use map_tx_dma to unmap rx_dma spi/spi_mpc8xxx: Fix QE mode Litte Endian spi/spi_mpc8xxx: fix potential memory corruption.
2010-05-25m68knommu: fix broken use of BUAD_TABLE_SIZE in 68328serial driverGreg Ungerer
Commit 8b505ca8e2600eb9e7dd2d6b2682a81717671374 ("serial: 68328serial.c: remove BAUD_TABLE_SIZE macro") misses one use of BAUD_TABLE_SIZE. So the resulting 68328serial.c does not compile: drivers/serial/68328serial.c: In function `m68328_console_setup': drivers/serial/68328serial.c:1439: error: `BAUD_TABLE_SIZE' undeclared (first use in this function) drivers/serial/68328serial.c:1439: error: (Each undeclared identifier is reported only once drivers/serial/68328serial.c:1439: error: for each function it appears in.) Fix that last use of it. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Cc: Thiago Farina <tfransosi@gmail.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>
2010-05-25Merge remote branch 'origin' into secretlab/next-spiGrant Likely
2010-05-25powerpc/mpc5121: move PSC FIFO memory init to platform codeAnatolij Gustschin
Since PSC could also be used in other modes than UART mode we move PSC FIFO memory initialization from serial driver to common platform code. The initialized FIFO memory slices may not overlap, so the most easy way would be to configure them all at once at init time for all PSC devices. This is now done by this patch. Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (25 commits) sh: fix up sh7785lcr_32bit_defconfig. arch/sh/lib/strlen.S: Checkpatch cleanup sh: fix up sh7786 dmaengine build. sh: guard cookie consistency across termination in the DMA driver sh: prevent the DMA driver from unloading, while in use sh: fix Oops in the serial SCI driver sh: allow platforms to specify SD-card supported voltages mmc: let MFD's provide supported Vdd card voltages to tmio_mmc sh: disable SD-card write-protection detection on kfr2r09 mfd: pass platform flags down to the tmio_mmc driver tmio: add a platform flag to disable card write-protection detection sh: Add SDHI DMA support to migor sh: Add SDHI DMA support to kfr2r09 sh: Add SDHI DMA support to ms7724se sh: Add SDHI DMA support to ecovec mmc: add DMA support to tmio_mmc driver, when used on SuperH sh: prepare the SDHI MFD driver to pass DMA configuration to tmio_mmc.c mmc: prepare tmio_mmc for passing of DMA configuration from the MFD cell sh: add DMA slave definitions to sh7724 sh: add DMA slaves for two SDHI controllers to sh7722 ...
2010-05-22sh: fix Oops in the serial SCI driverGuennadi Liakhovetski
Fix an Oops, triggering, if the DMA buffer allocation for the Rx channel in sh-sci.c fails. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-22Merge remote branch 'origin' into secretlab/next-devicetreeGrant Likely
Merging in current state of Linus' tree to deal with merge conflicts and build failures in vio.c after merge. Conflicts: drivers/i2c/busses/i2c-cpm.c drivers/i2c/busses/i2c-mpc.c drivers/net/gianfar.c Also fixed up one line in arch/powerpc/kernel/vio.c to use the correct node pointer. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-22of: Remove duplicate fields from of_platform_driverGrant Likely
.name, .match_table and .owner are duplicated in both of_platform_driver and device_driver. This patch is a removes the extra copies from struct of_platform_driver and converts all users to the device_driver members. This patch is a pretty mechanical change. The usage model doesn't change and if any drivers have been missed, or if anything has been fixed up incorrectly, then it will fail with a compile time error, and the fixup will be trivial. This patch looks big and scary because it touches so many files, but it should be pretty safe. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Sean MacLennan <smaclennan@pikatech.com>
2010-05-21Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: DMAENGINE: extend the control command to include an arg async_tx: trim dma_async_tx_descriptor in 'no channel switch' case DMAENGINE: DMA40 fix for allocation of logical channel 0 DMAENGINE: DMA40 support paused channel status dmaengine: mpc512x: Use resource_size DMA ENGINE: Do not reset 'private' of channel ioat: Remove duplicated devm_kzalloc() calls for ioatdma_device ioat3: disable cacheline-unaligned transfers for raid operations ioat2,3: convert to producer/consumer locking ioat: convert to circ_buf DMAENGINE: Support for ST-Ericssons DMA40 block v3 async_tx: use of kzalloc/kfree requires the include of slab.h dmaengine: provide helper for setting txstate DMAENGINE: generic channel status v2 DMAENGINE: generic slave control v2 dma: timb-dma: Update comment and fix compiler warning dma: Add timb-dma DMAENGINE: COH 901 318 fix bytesleft DMAENGINE: COH 901 318 rename confusing vars
2010-05-21Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (92 commits) powerpc: Remove unused 'protect4gb' boot parameter powerpc: Build-in e1000e for pseries & ppc64_defconfig powerpc/pseries: Make request_ras_irqs() available to other pseries code powerpc/numa: Use ibm,architecture-vec-5 to detect form 1 affinity powerpc/numa: Set a smaller value for RECLAIM_DISTANCE to enable zone reclaim powerpc: Use smt_snooze_delay=-1 to always busy loop powerpc: Remove check of ibm,smt-snooze-delay OF property powerpc/kdump: Fix race in kdump shutdown powerpc/kexec: Fix race in kexec shutdown powerpc/kexec: Speedup kexec hash PTE tear down powerpc/pseries: Add hcall to read 4 ptes at a time in real mode powerpc: Use more accurate limit for first segment memory allocations powerpc/kdump: Use chip->shutdown to disable IRQs powerpc/kdump: CPUs assume the context of the oopsing CPU powerpc/crashdump: Do not fail on NULL pointer dereferencing powerpc/eeh: Fix oops when probing in early boot powerpc/pci: Check devices status property when scanning OF tree powerpc/vio: Switch VIO Bus PM to use generic helpers powerpc: Avoid bad relocations in iSeries code powerpc: Use common cpu_die (fixes SMP+SUSPEND build) ...
2010-05-21Merge branch 'dbg-early-merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb * 'dbg-early-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: echi-dbgp: Add kernel debugger support for the usb debug port earlyprintk,vga,kdb: Fix \b and \r for earlyprintk=vga with kdb kgdboc: Add ekgdboc for early use of the kernel debugger x86,early dr regs,kgdb: Allow kernel debugger early dr register access x86,kgdb: Implement early hardware breakpoint debugging x86, kgdb, init: Add early and late debug states x86, kgdb: early trap init for early debug
2010-05-21Merge branch 'kdb-merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb * 'kdb-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: (25 commits) kdb,debug_core: Allow the debug core to receive a panic notification MAINTAINERS: update kgdb, kdb, and debug_core info debug_core,kdb: Allow the debug core to process a recursive debug entry printk,kdb: capture printk() when in kdb shell kgdboc,kdb: Allow kdb to work on a non open console port kgdb: Add the ability to schedule a breakpoint via a tasklet mips,kgdb: kdb low level trap catch and stack trace powerpc,kgdb: Introduce low level trap catching x86,kgdb: Add low level debug hook kgdb: remove post_primary_code references kgdb,docs: Update the kgdb docs to include kdb kgdboc,keyboard: Keyboard driver for kdb with kgdb kgdb: gdb "monitor" -> kdb passthrough sparc,sunzilog: Add console polling support for sunzilog serial driver sh,sh-sci: Use NO_POLL_CHAR in the SCIF polled console code kgdb,8250,pl011: Return immediately from console poll kgdb: core changes to support kdb kdb: core for kgdb back end (2 of 2) kdb: core for kgdb back end (1 of 2) kgdb,blackfin: Add in kgdb_arch_set_pc for blackfin ...
2010-05-21serial: bfin_sport_uart: Use resource size to fix off-by-one errorTobias Klauser
Use the resource_size function instead of manually calculating the resource size. This actually fixes an off-by-one error. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-21serial: Add driver for the Altera UARTTobias Klauser
Add an UART driver for the UART component available as a SOPC (System on Programmable Chip) component for Altera FPGAs. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-21serial: Add driver for the Altera JTAG UARTTobias Klauser
Add an UART driver for the JTAG UART component available as a SOPC (System on Programmable Chip) component for Altera FPGAs. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-21serial: timbuart: make sure last byte is sent when port is closedRichard Röjfors
Fix a problem in early versions of the FPGA IP. In certain situations the IP reports that the FIFO is empty, but a byte is still clocked out. If a flush is done at that point the currently clocked byte is canceled. This causes incompatibilities with the upper layers when a port is closed, it waits until the FIFO is empty and then closes the port. During close the FIFO is flushed -> the last byte is not sent properly. Now the FIFO is only flushed if it is reported to be non-empty. Which makes the currently clocked out byte to finish. [akpm@linux-foundation.org: fix build] Signed-off-by: Richard Röjfors <richard.rojfors@pelagicore.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-21serial: two branches the same in timbuart_set_mctrl()Roel Kluin
CTS is a read only bit and we are to stop signal RTS if modem line TIOCM_RTS is not set. Thanks for suggestions by Richard Röjfors. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Richard Röjfors <richard.rojfors@pelagicore.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>
2010-05-21serial: uartlite: move from byte accesses to word accessesJohn Linn
Byte accesses for I/O devices in Xilinx IP is going to be less desired in the future such that the driver is being changed to use 32 bit accesses. This change facilitates using the uartlite IP over a PCIe bus which only allows 32 bit accesses. Signed-off-by: John Linn <john.linn@xilinx.com> Tested-by: Michal Simek <monstr@monstr.eu> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-21serial: bfin_sport_uart: drop redundant cpu dependsMike Frysinger
The BF54xM procs imply the related BF54x define, so no need to check both. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-21serial: bfin_sport_uart: drop the experimental markingsMike Frysinger
Should be stable now ... Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-21serial: bfin_sport_uart: pull in bfin_sport.h for SPORT definesMike Frysinger
Now that the SPORT MMR defines have been unified, switch over to it. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-21serial: bfin_sport_uart: only enable SPORT TX if data is to be sentSonic Zhang
Rather than always turn on the SPORT TX interrupt, only do it when we've actually queued up data for transmission. This avoids useless interrupt processing. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-21serial: bfin_sport_uart: drop useless status masksMike Frysinger
These were all copied over from the Blackfin UART driver, but they don't make sense here because these bits are all specific to the Blackfin UART. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>