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2014-01-08GFS2: Add hints to directory leaf blocksSteven Whitehouse
This patch adds four new fields to directory leaf blocks. The intent is not to use them in the kernel itself, although perhaps we may be able to use them as hints at some later date, but instead to provide more information for debug/fsck use. One new field adds a pointer to the inode to which the leaf belongs. This can be useful if the pointer to the leaf block has become corrupt, as it will allow us to know which inode this block should be associated with. This field is set when the leaf is created and never changed over its lifetime. The second field is a "distance from the hash table" field. The meaning is as follows: 0 = An old leaf in which this value has not been set 1 = This leaf is pointed to directly from the hash table 2+ = This leaf is part of a chain, pointed to by another leaf block, the value gives the position in the chain. The third and fourth fields combine to give a time stamp of the most recent directory insertion or deletion from this leaf block. The time stamp is not updated when a new leaf block is chained from the current one. The code is currently written such that the timestamp on the dir inode will match that of the leaf block for the most recent insertion/deletion. For backwards compatibility, any of these new fields which is zero should be considered to be "unknown". Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2014-01-08ASoC: adau1701: Fix ADAU1701_SEROCTL_WORD_LEN_16 constantLars-Peter Clausen
The driver defines ADAU1701_SEROCTL_WORD_LEN_16 as 0x10 while it should be b10, so 0x2. This patch fixes it. Reported-by: Magnus Reftel <magnus.reftel@lockless.no> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@linaro.org> Cc: stable@vger.kernel.org
2014-01-08ASoC: sapm: Automatically connect DAI link widgets in DAPM graph.Liam Girdwood
Connect the DAPM graph through each BE DAI link to the componnent(s) on the other side of the BE DAI link. This allows the graph to be walked on both sides of the link when graph changes are made. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-08ASoC: utils: Add internal call to determine if DAI is dummy.Liam Girdwood
Provide a quick way to tell if a DAI is a dummy DAI or a regular DAI. This is for internal DAPM usage only and is used to determine whether to insert a DAI link connection into the DAPM graph. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-08ARM: s3c24xx: fix build errorLinus Walleij
When enabling device tree on the S3C an additional build bug appears in the Osiris DVS board file: CC arch/arm/mach-s3c24xx/mach-osiris-dvs.o archh/arm/mach-s3c24xx/mach-osiris-dvs.c: In function ‘osiris_dvs_notify’: arch/arm/mach-s3c24xx/mach-osiris-dvs.c:77:4: error: implicit declaration of function ‘S3C2410_GPB’ [-Werror=implicit-function-declaration] gpio_set_value(OSIRIS_GPIO_DVS, 1); ^ Fix this by explicitly including <linux/platform_data/gpio-samsung-s3c24xx.h> Reported-by: Arnd Bergmann <arnd@arndb.de> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Sylwester Nawrocki <sylvester.nawrocki@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: linux-samsung-soc@vger.kernel.org Acked-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-08mfd: twl-core: Enable regcache for audio registersPeter Ujfalusi
Enable regmap's regcache for the audio registers: i2c address 0x49, register range 0x01 - 0x49 Mark all other registers as volatile to avoid any side effect for the non audio functions behind 0x49 i2c address. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-01-08mfd: twl-core: API to set the regcache bypass for a given regmap in twlPeter Ujfalusi
If the regcache is enabled on the regmap module drivers might need to access to HW register(s) in certain cases in cache bypass mode. As an example of this is the audio block's ANAMICL register. In normal operation the content can be cached but during initialization one bit from the register need to be monitored. With the twl_set_regcache_bypass() the client driver can switch regcache bypass on and off when it is needed so we can utilize the regcache for more registers. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-01-08mfd: twl-core: Simplify IO wrapper functions by moving common code outPeter Ujfalusi
The new twl_get_regmap() function will return a pointer to the regmap needed for the given module. Since both read and write function were using the same code to do the lookup we can reuse this in both places to simplify the code. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-01-08GFS2: For exhash conversion, only one block is neededSteven Whitehouse
For most cases, only a single new block is needed when we reach the point of converting from stuffed to exhash directory. The exception being when the file name is so long that it will not fit within the new leaf block. So this patch adds a simple test for that situation so that we do not need to request the full reservation size in this case. Potentially we could calculate more accurately the value to use in other cases too, but that is much more complicated to do and it is doubtful that the benefit would outweigh the extra cost in code complexity. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2014-01-08pinctrl: sirf: add pin group for USP0 with only RX or TX frame syncRongjun Ying
USP0 has multiple functions, and has RX and TX frame sync signals, for some scenarios like audio PCM, we don't need both of them. so here we add two possibilities for USP0 only holding one of TX and RX frame sync. Signed-off-by: Rongjun Ying <Rongjun.Ying@csr.com> Signed-off-by: Barry Song <Barry.Song@csr.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-08pinctrl: sirf: fix the pins of sdmmc5 connected with TriGBin Shi
sdmmc5 has only 3 pins CMD, CLK, DATA which are connected with CSR TriG RF multi-GNSS. The hardware connection is like: DATA -- GPS_SGN CLK -- GPS_RF_CLK CMD -- GPS_MAG here we drop redundant pins in sdmmc5 group. Signed-off-by: Bin Shi <Bin.Shi@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-08pinctrl: sirf: add lost usp1_uart_nostreamctrl group for atlas6Qipan Li
commit af614b2301f0e304 adds lost USP-based UART pin groups for prima2, but missed usp1_uart_nostreamctrl group for atlas6, this patch fixes it. this makes USP(Universal Serial Ports) port1 can work as uart without stream ctrl. Signed-off-by: Qipan Li <Qipan.Li@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-08pinctrl: sunxi: Add Allwinner A20 clock output pin functionsChen-Yu Tsai
This patch adds the clock output pin functions on the A20. The 2 pins can output a configurable clock to be used by external modules. This is used on the CubieTruck, to supply a 32768 Hz low power clock to the onboard Wifi+BT module. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-08pinctrl/lantiq: fix typoAntonios Vamporakis
Signed-off-by: Antonios Vamporakis <ant@area128.com> CC: John Crispin <blogic@openwrt.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-08ALSA: hda - Don't create duplicated ctls for loopback pathsTakashi Iwai
AD1986A mic pins (0x1d and 0x1f) share the same widget for controlling the loopback volume/mute, but the generic parser didn't check it. This ended up with the duplicated controls for the same effect. This patch adds the check of the duplication for avoiding it. After this fix, there will be only one control although it affects both paths; this remaining issue should be fixed later in a different patch. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=66621 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-01-08ALSA: hda - Correct AD1986A 3stack pin configsTakashi Iwai
The 3stack pin configs for AD1986A codec had incorrect values that resulted in broken mic and line-in. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=66621 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-01-08ALSA: hda - Add consistent tag names for firmware patchTakashi Iwai
Some tags used in the firmware patch file are inconsistent with hwdep sysfs file names, such as, the firmware patch takes [hint] tag while sysfs file is */hints. This makes even me referring back to the document often. Let's provide the same tag names as sysfs for reducing confusions. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-01-08ALSA: hda - firmware patch code cleanupTakashi Iwai
Just a code refactoring: the need_codec flag in hda_patch_item struct can be removed by checking the current mode instead. No functional change. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-01-08ALSA: hda - Increment default stream numbers for AMD HDMI controllersTakashi Iwai
It turned out that some AMD HDMI controllers still don't provide proper values in GCAP register (all zero), and the driver assigns only one stream in that case, although the connected codec chip supports more than one stream. In this patch, the default max number of streams for AMD HDMI controllers is increased to 8, which should suffice for most use cases. The overhead by this increase is more azx_dev struct and BDL allocations, so it's negligible. Of course, if the controller provides a proper GCAP register, the register value would be used. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-01-08ALSA: hda - Minor code optimization for patch_realtek.cTakashi Iwai
No functional change. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-01-08Merge branch 'drm-nouveau-next' of ↵Dave Airlie
git://anongit.freedesktop.org/nouveau/linux-2.6 into drm-fixes misc fixes for nouveau, one more msi rearm, regression fix for old bioses crash and leak fixes. * 'drm-nouveau-next' of git://anongit.freedesktop.org/nouveau/linux-2.6: drm/nouveau/nouveau: fix memory leak in nouveau_crtc_page_flip() drm/nouveau/bios: fix offset calculation for BMPv1 bioses drm/nouveau: return offset of allocated notifier drm/nouveau/bios: make jump conditional drm/nvce/mc: fix msi rearm on GF114 drm/nvc0/gr: fix mthd data submission drm/nouveau: populate master subdev pointer only when fully constructed
2014-01-08Merge tag 'drm-intel-fixes-2014-01-08' of ↵Dave Airlie
git://people.freedesktop.org/~danvet/drm-intel into drm-fixes Just a revert (gen4 backlight seems a lost cause) and a tlb coherency fix for bdw, plus the patch to sign up Jani for co-maintainer. Thanks to Ben for taking care of -fixes while I've enjoyed a bit of vacation. * tag 'drm-intel-fixes-2014-01-08' of git://people.freedesktop.org/~danvet/drm-intel: MAINTAINERS: Updates for drm/i915 Revert "drm/i915: assume all GM45 Acer laptops use inverted backlight PWM" drm/i915/bdw: Flush system agent on gen8 also
2014-01-08Merge branch 'master' of git://git.infradead.org/users/pcmoore/selinux into nextJames Morris
2014-01-08drm/nouveau/nouveau: fix memory leak in nouveau_crtc_page_flip()Christian Engelmayer
Fix a memory leak in the nouveau_crtc_page_flip() error handling path. Signed-off-by: Christian Engelmayer <cengelma@gmx.at> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-08drm/nouveau/bios: fix offset calculation for BMPv1 biosesIlia Mirkin
The only BIOS on record that needs the 14 offset has a bios major version 2 but BMP version 1.01. Another bunch of BIOSes that need the 18 offset have BMP version 2.01 or 5.01 or higher. So instead of looking at the bios major version, look at the BMP version. BIOSes with BMP version 0 do not contain a detectable script, so always return 0 for them. See https://bugs.freedesktop.org/show_bug.cgi?id=68835 Reported-by: Mauro Molinari <mauromol@tiscali.it> Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-07Staging: vt6656: Reduce line length of bssdb.cSimon Schuster
Long lines are split into multiple ones to reduce the line length. Additionally some alignment fixes are made that previous patches missed. Unfortunately, due to the high indentation levels present in parts of bssdb.c, this patch leaves some lines which are longer than 80 characters. Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de> Signed-off-by: Simon Schuster <linux@rationality.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07Staging: vt6656: Remove explicit comparisons against NULLSebastian Rachuj
Explicit comparisons of pointers agains NULL (like if (p != NULL) ...) are not as readable as the implicit comparison (like if (p) ...). This patch converts all these explicit comparisons to implicit ones. Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de> Signed-off-by: Simon Schuster <linux@rationality.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07Staging: vt6656: Remove bogus parentheses in conditionsSebastian Rachuj
Removes unrequired parentheses around comparisons in complex conditions. Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de> Signed-off-by: Simon Schuster <linux@rationality.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07Staging: vt6656: Combined nested conditionsSimon Schuster
This patch reduces the level of indentation in bssdb.c of the vt6656 driver by transforming nested conditions to a series of logical conjunctions. E.g. if (cond1) { if (cond2) { block(); } } is transformed to if (cond1 && cond2) { block(); } Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de> Signed-off-by: Simon Schuster <linux@rationality.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07Staging: vt6656: Correct usage of bracesSimon Schuster
Conforming to the linux coding style guidelines, a single line block of an if statement does not require curly braces unless another block of the if cascade requires them. Therefore unnecessary curly braces are removed by this patch and missing ones are added. Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de> Signed-off-by: Simon Schuster <linux@rationality.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07Staging: vt6656: Combine "else { if" to "else if"Simon Schuster
This patch combines single ifs within the block of an else to a single else if statement. Therefore code that looks like that else { if (cond) { statements; } else { other_statements; } } is converted to code that looks like that else if (cond) { statements; } else { other_statements; } Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de> Signed-off-by: Simon Schuster <linux@rationality.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07Staging: vt6656: Remove unnecessary spaces in format stringsSimon Schuster
A space in a format string is unnecessary if it is followed by a line feed. These spaces are removed by this patch. Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de> Signed-off-by: Simon Schuster <linux@rationality.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07Staging: vt6656: Remove line feeds before elseSimon Schuster
An else belongs in the same line as the closing curly brace of the previous block. Hence, this patch removes line feeds separating a curly brace from the corresponding else. Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de> Signed-off-by: Simon Schuster <linux@rationality.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07Staging: vt6656: Correct single space mistakesSimon Schuster
Adds missing spaces between an if-statement and its condition as well as between the condition and the following curly brace. At casts there is also a space added between the type and the variable. Spaces that either follow an opening parenthese or the sizeof operator or that preceed semicolons are removed as well. Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de> Signed-off-by: Simon Schuster <linux@rationality.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07Staging: vt6656: Correct operator coding styleSimon Schuster
Adds spaces around operators (like &&, ||, !=, +, ...) and removes spaces before postfix increment and decrement operators. Parentheses around return values are removed, too. Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de> Signed-off-by: Simon Schuster <linux@rationality.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07Staging: vt6656: Remove unnecessary semicolonsSimon Schuster
After some blocks in bssdb.c there are semicolons that are not required to be there. Therefore they are removed with this patch. Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de> Signed-off-by: Simon Schuster <linux@rationality.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07Staging: vt6656: Adjust comments in bssdb.cSimon Schuster
Changes C99-style comments to C89-style ones to conform to the linux coding guidelines. Additionally removes plus and minus signs from the function description comments. Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de> Signed-off-by: Simon Schuster <linux@rationality.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07Staging: vt6656: Fix indentation of bssdb.cSimon Schuster
Corrects indentation by using tabs instead of spaces. This also includes modification of the alignment of multi-line expressions and statements. Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de> Signed-off-by: Simon Schuster <linux@rationality.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07serial: 8250: enable UART_BUG_NOMSR for TegraStephen Warren
Tegra chips have 4 or 5 identical UART modules embedded. UARTs C..E have their MODEM-control signals tied off to a static state. However UARTs A and B can optionally route those signals to/from package pins, depending on the exact pinmux configuration. When these signals are not routed to package pins, false interrupts may trigger either temporarily, or permanently, all while not showing up in the IIR; it will read as NO_INT. This will eventually lead to the UART IRQ being disabled due to unhandled interrupts. When this happens, the kernel may print e.g.: irq 68: nobody cared (try booting with the "irqpoll" option) In order to prevent this, enable UART_BUG_NOMSR. This prevents UART_IER_MSI from being enabled, which prevents the false interrupts from triggering. In practice, this is not needed under any of the following conditions: * On Tegra chips after Tegra30, since the HW bug has apparently been fixed. * On UARTs C..E since their MODEM control signals are tied to the correct static state which doesn't trigger the issue. * On UARTs A..B if the MODEM control signals are routed out to package pins, since they will then carry valid signals. However, we ignore these exceptions for now, since they are only relevant if a board actually hooks up more than a 4-wire UART, and no currently supported board does this. If we ever support a board that does, we can refine the algorithm that enables UART_BUG_NOMSR to take those exceptions into account, and/or read a flag from DT/... that indicates that the board has hooked up and pinmux'd more than a 4-wire UART. Reported-by: Olof Johansson <olof@lixom.net> # autotester Cc: <stable@vger.kernel.org> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07tty/serial: at91: reset rx_ring when port is shutdownMark Deneen
When using RX DMA, the driver won't pass any data to the uart layer until the buffer is flipped. When the port is shutdown, the dma buffers are unmapped, but the head and tail of the ring buffer are not reseted. Since the serial console will keep the port open, this will only present itself when the uart is not shared. To reproduce the issue, with an unpatched driver, run a getty on /dev/ttyS0 with no serial console and exit. Getty will exit, and when the new one returns you will be unable to log in. If you hold down a key long enough to fill the DMA buffer and flip it, you can then log in. Signed-off-by: Mark Deneen <mdeneen@gmail.com> Acked-by: Leilei Zhao <leilei.zhao@atmel.com> [nicolas.ferre@atmel.com: adapt to mainline kernel, handle !DMA case] Cc: <stable@vger.kernel.org> # v3.12 Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07tty/serial: at91: fix race condition in atmel_serial_removeMarek Roszko
The _remove callback could be called when a tasklet is scheduled. tasklet_kill was called inside the function in order to free up any scheduled tasklets. However it was called after uart_remove_one_port which destroys tty references needed in the port for atmel_tasklet_func. Simply putting the tasklet_kill at the start of the function will prevent this conflict. Signed-off-by: Marek Roszko <mark.roszko@gmail.com> Acked-by: Leilei Zhao <leilei.zhao@atmel.com> Cc: <stable@vger.kernel.org> # v3.12 Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07tty/serial: at91: Handle shutdown more safelyMarek Roszko
Interrupts were being cleaned up late in the shutdown handler, it is possible that an interrupt can occur and schedule a tasklet that runs after the port is cleaned up. There is a null dereference due to this race condition with the following stacktrace: [<c02092b0>] (atmel_tasklet_func+0x514/0x814) from [<c001fd34>] (tasklet_action+0x70/0xa8) [<c001fd34>] (tasklet_action+0x70/0xa8) from [<c001f60c>] (__do_softirq+0x90/0x144) [<c001f60c>] (__do_softirq+0x90/0x144) from [<c001fa18>] (irq_exit+0x40/0x4c) [<c001fa18>] (irq_exit+0x40/0x4c) from [<c000e298>] (handle_IRQ+0x64/0x84) [<c000e298>] (handle_IRQ+0x64/0x84) from [<c000d6c0>] (__irq_svc+0x40/0x50) [<c000d6c0>] (__irq_svc+0x40/0x50) from [<c0208060>] (atmel_rx_dma_release+0x88/0xb8) [<c0208060>] (atmel_rx_dma_release+0x88/0xb8) from [<c0209740>] (atmel_shutdown+0x104/0x160) [<c0209740>] (atmel_shutdown+0x104/0x160) from [<c0205e8c>] (uart_port_shutdown+0x2c/0x38) Signed-off-by: Marek Roszko <mark.roszko@gmail.com> Acked-by: Leilei Zhao <leilei.zhao@atmel.com> Cc: <stable@vger.kernel.org> # v3.12 Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07serial: sirf: correct condition for fetching dma buffer into ttyQipan Li
In rx dma-callback it calls tasklet_schedule, if the tasklet be scheduled after all the dma-callback in the rx dma channel, current check condition in the tasklet will not do fetch dma buffer into tty because tx_issued is equal with tx_completed, so as timeout tasklet does. so we check whether we should fetch the whole dma buffer into tty according to the status of transactions in rx dma channel. Signed-off-by: Qipan Li <Qipan.Li@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07serial: sirf: provide pm entries of uart_opsQipan Li
this patch provides PM entry of uart_ops, then drop clk enable and disable because serial core will do it. the patch also fixes the issue that uart hang in resume caused by not-enabled clock. Signed-off-by: Qipan Li <Qipan.Li@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07serial: sirf: use PM macro initialize PM functionsQipan Li
use SET_SYSTEM_SLEEP_PM_OPS to initialize suspend/resume functions instead of legacy suspend and resume entries of platform_driver. this will add hibernation support automatically as suspend to disk entries are also set. Signed-off-by: Qipan Li <Qipan.Li@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07serial: clps711x: Enable driver compilation with COMPILE_TESTAlexander Shiyan
This helps increasing build testing coverage. To do this, read{write}_relaxed() functions was be replaced with simple read{write}() variants. Potential "uninitialized variable" warnings was be fixed if driver compiled without MFD_SYSCON. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07serial: clps711x: Add support for N_IRDA line disciplineAlexander Shiyan
This patch replace custom handling of IrDA feature with N_IRDA line discipline, so IrDA mode can be used with irtty driver. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07tty: synclink: avoid sleep_on raceArnd Bergmann
The four variants of the synclink driver use the same code in their open() callback to wait for a port in process of being closed, using interruptible_sleep_on, which is racy and going away soon. Making things worse, these functions hold the BTM while doing so, which means that if we ever enter this code path, we cannot actually continue since the other thread that is in process of closing the port can no longer get the BTM. This addresses both issues by using wait_event_interruptible_tty() instead. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07tty/amiserial: avoid interruptible_sleep_onArnd Bergmann
interruptible_sleep_on is generally problematic and we want to get rid of it. In case of TIOCMIWAIT, that race is actually in user space and does not get fixed since we can only detect changes after entering the ioctl handler, but it removes one more caller. This instance can not be trivially replaced with wait_event, so I chose to open-code the wait loop using prepare_to_wait/finish_wait. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07tty: delete non-required instances of include <linux/init.h>Paul Gortmaker
None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>