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2010-05-20Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (250 commits) ALSA: hda: Storage class should be before const qualifier ASoC: tpa6130a2: Remove CPVSS and HPVdd supplies ASoC: tpa6130a2: Define output pins with SND_SOC_DAPM_OUTPUT ASoC: sdp4430 - add sdp4430 pcm ops to DAI. ASoC: TWL6040: Enable earphone path in codec ASoC: SDP4430: Add support for Earphone speaker ASoC: SDP4430: Add sdp4430 machine driver ASoC: tlv320dac33: Avoid powering off while in BIAS_OFF ASoC: tlv320dac33: Use dev_dbg in dac33_hard_power function ALSA: sound/pci/asihpi: Use kzalloc ALSA: hdmi - dont fail on extra nodes ALSA: intelhdmi - add id for the CougarPoint chipset ALSA: intelhdmi - user friendly codec name ALSA: intelhdmi - add dependency on SND_DYNAMIC_MINORS ALSA: asihpi: incorrect range check ALSA: asihpi: testing the wrong variable ALSA: es1688: add pedantic range checks ARM: McBSP: Add support for omap4 in McBSP driver ARM: McBSP: Fix request for irq in OMAP4 OMAP: McBSP: Add 32-bit mode support ...
2010-05-20Merge branch 'for-linus/i2c-2635' of git://git.fluff.org/bjdooks/linuxLinus Torvalds
* 'for-linus/i2c-2635' of git://git.fluff.org/bjdooks/linux: (21 commits) i2c-highlander: remover superflous variable i2c-ibm-iic: drop NO_IRQ i2c-cpm: drop NO_IRQ i2c-mpc: drop NO_IRQ MAINTAINERS: add i2c tree for embedded platforms i2c-pxa: only define 'blue_murder'-function if DEBUG is #defined i2c-pxa: remove unused macro i2c-nomadik: fix operator precedence warning i2c-nomadik: release region when removed OMAP3: I2C: Clean up Errata 1p153 handling OMAP2/3: I2C: Errata ID i207: Clear wrong RDR interrupt omap: i2c: add a timeout to the busy waiting omap: i2c: make errata 1.153 workaround a separate function i2c-omap: add mpu wake up latency constraint in i2c omap: i2c: Add i2c support on omap4 platform i2c-bfin-twi: return completion in interrupt for smbus quick transfers i2c-bfin-twi: remove redundant retry i2c-bfin-twi: fix lost interrupts at high speeds i2c-bfin-twi: add debug output for error status i2c-bfin-twi: integrate timeout timer with completion interface ...
2010-05-20Merge branch 'v4l_for_2.6.35' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 * 'v4l_for_2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (534 commits) V4L/DVB (13554a): v4l: Use the video_drvdata function in drivers V4L/DVB: vivi and mem2mem_testdev need slab.h to build V4L/DVB: tm6000: bugfix image position V4L/DVB: IR/imon: remove dead IMON_KEY_RELEASE_OFFSET V4L/DVB: tm6000: README - add vbi V4L/DVB: Fix unlock logic at medusa_video_init V4L/DVB: fix dvb frontend lockup V4L/DVB: s2255drv: remove dead code V4L/DVB: s2255drv: return if vdev not found V4L/DVB: ov511: cleanup: remove unneeded null check V4L/DVB: media/mem2mem: dereferencing free memory V4L/DVB: media/IR: Add missing include file to rc-map.c V4L/DVB: dvb/stv6110x: cleanup error handling V4L/DVB: ngene: Add lgdt3303 and mt2131 deps to Kconfig V4L/DVB: ngene: start separating out DVB functions into separate file V4L/DVB: ngene: split out card specific code into a separate file V4L/DVB: ngene: split out i2c code into a separate file V4L/DVB: ngene: add initial support for digital side of Avermedia m780 V4L/DVB: ngene: properly support boards where channel 0 isn't a TS input V4L-DVB: ngene: make sure that tuner headers are included ...
2010-05-20Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (49 commits) libata-sff: separate out BMDMA qc_issue libata-sff: prd is BMDMA specific libata-sff: ata_sff_[dumb_]qc_prep are BMDMA specific libata-sff: separate out BMDMA EH libata-sff: port_task is SFF specific libata-sff: ap->[last_]ctl are SFF specific libata-sff: rename ap->ops->drain_fifo() to sff_drain_fifo() libata-sff: introduce ata_sff_init/exit() and ata_sff_port_init() libata-sff: clean up BMDMA initialization libata-sff: clean up inheritance in several drivers libata-sff: reorder SFF/BMDMA functions sata_inic162x: kill PORT_PRD_ADDR initialization libata: kill ATA_FLAG_DISABLED libata-sff: kill unused prototype and make ata_dev_select() static libata-sff: update bmdma host bus error handling sata_mv: remove unnecessary initialization sata_inic162x: inic162x is not dependent on CONFIG_ATA_SFF pata_sch: use ata_pci_sff_init_one() pata_sil680: Do our own exec_command posting libata: Remove excess delay in the tf_load path ...
2010-05-20Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (44 commits) vlynq: make whole Kconfig-menu dependant on architecture add descriptive comment for TIF_MEMDIE task flag declaration. EEPROM: max6875: Header file cleanup EEPROM: 93cx6: Header file cleanup EEPROM: Header file cleanup agp: use NULL instead of 0 when pointer is needed rtc-v3020: make bitfield unsigned PCI: make bitfield unsigned jbd2: use NULL instead of 0 when pointer is needed cciss: fix shadows sparse warning doc: inode uses a mutex instead of a semaphore. uml: i386: Avoid redefinition of NR_syscalls fix "seperate" typos in comments cocbalt_lcdfb: correct sections doc: Change urls for sparse Powerpc: wii: Fix typo in comment i2o: cleanup some exit paths Documentation/: it's -> its where appropriate UML: Fix compiler warning due to missing task_struct declaration UML: add kernel.h include to signal.c ...
2010-05-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: (29 commits) pcmcia: disable PCMCIA ioctl also for ARM drivers/staging/comedi: dev_node removal (quatech_daqp_cs) drivers/staging/comedi: dev_node removal (ni_mio_cs) drivers/staging/comedi: dev_node removal (ni_labpc_cs) drivers/staging/comedi: dev_node removal (ni_daq_dio24) drivers/staging/comedi: dev_node removal (ni_daq_700) drivers/staging/comedi: dev_node removal (das08_cs) drivers/staging/comedi: dev_node removal (cb_das16_cs) pata_pcmcia: get rid of extra indirection pcmcia: remove suspend-related comment from yenta_socket.c pcmcia: call pcmcia_{read,write}_cis_mem with ops_mutex held pcmcia: remove pcmcia_add_device_lock pcmcia: update gfp/slab.h includes pcmcia: remove unused mem_op.h pcmcia: do not autoadd root PCI bus resources pcmcia: clarify alloc_io_space, move it to resource handlers pcmcia: move all pcmcia_resource_ops providers into one module pcmcia: move high level CIS access code to separate file pcmcia: dev_node removal (core) pcmcia: dev_node removal (remaining drivers) ...
2010-05-20Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: PM: PM QOS update fix Freezer / cgroup freezer: Update stale locking comments PM / platform_bus: Allow runtime PM by default i2c: Fix bus-level power management callbacks PM QOS update PM / Hibernate: Fix block_io.c printk warning PM / Hibernate: Group swap ops PM / Hibernate: Move the first_sector out of swsusp_write PM / Hibernate: Separate block_io PM / Hibernate: Snapshot cleanup FS / libfs: Implement simple_write_to_buffer PM / Hibernate: document open(/dev/snapshot) side effects PM / Runtime: Add sysfs debug files PM: Improve device power management document PM: Update device power management document PM: Allow runtime_suspend methods to call pm_schedule_suspend() PM: pm_wakeup - switch to using bool
2010-05-20Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: IB/core: Use kmemdup() instead of kmalloc()+memcpy() IB/iser: Fix error flow in iser_create_ib_conn_res() IB/iser: Enhance disconnection logic for multi-pathing IB/iser: Remove buggy back-pointer setting IB/iser: Add asynchronous event handler MAINTAINERS: Add cxgb4 and iw_cxgb4 entries RDMA/cxgb3: Shrink .text with compile-time init of handlers arrays IPoIB: Allow disabling/enabling TSO on the fly through ethtool IB/mlx4: Add support for masked atomic operations IB/core: Add support for masked atomic operations RDMA/cma: Randomize local port allocation RDMA/nes: Make unnecessarily global functions static RDMA/nes: Make nesadapter->phy_lock usage consistent RDMA/cxgb4: Add driver for Chelsio T4 RNIC IB/mthca: Use the dma state API instead of pci equivalents RDMA/amso1100: Use the dma state API instead of pci equivalents RDMA/cxgb3: Don't free skbs on NET_XMIT_* indications from LLD RDMA/cxgb3: Use the dma state API instead of pci equivalents IB: Explicitly rule out llseek to avoid BKL in default_llseek()
2010-05-20Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: (61 commits) KEYS: Return more accurate error codes LSM: Add __init to fixup function. TOMOYO: Add pathname grouping support. ima: remove ACPI dependency TPM: ACPI/PNP dependency removal security/selinux/ss: Use kstrdup TOMOYO: Use stack memory for pending entry. Revert "ima: remove ACPI dependency" Revert "TPM: ACPI/PNP dependency removal" KEYS: Do preallocation for __key_link() TOMOYO: Use mutex_lock_interruptible. KEYS: Better handling of errors from construct_alloc_key() KEYS: keyring_serialise_link_sem is only needed for keyring->keyring links TOMOYO: Use GFP_NOFS rather than GFP_KERNEL. ima: remove ACPI dependency TPM: ACPI/PNP dependency removal selinux: generalize disabling of execmem for plt-in-heap archs LSM Audit: rename LSM_AUDIT_NO_AUDIT to LSM_AUDIT_DATA_NONE CRED: Holding a spinlock does not imply the holding of RCU read lock SMACK: Don't #include Ext2 headers ...
2010-05-20Merge branch 'topic/asoc' into for-linusTakashi Iwai
Conflicts: sound/soc/codecs/ad1938.c
2010-05-19Merge branch 'bkl/procfs' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing * 'bkl/procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing: sunrpc: Include missing smp_lock.h procfs: Kill the bkl in ioctl procfs: Push down the bkl from ioctl procfs: Use generic_file_llseek in /proc/vmcore procfs: Use generic_file_llseek in /proc/kmsg procfs: Use generic_file_llseek in /proc/kcore procfs: Kill BKL in llseek on proc base
2010-05-19Merge branch 'timers-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: cs5535-clockevt: Free timer in IRQ setup error path
2010-05-20i2c-highlander: remover superflous variableWolfram Sang
When cppcheck found this flaw [./i2c/busses/i2c-highlander.c:284]: (style) Warning - using char variable in bit operation it was noted that the 'read'-variable could be simply removed as read_write can only be 0 or 1 anyhow. So, we remove the flaw and simplify the code. Reported-by: d binderman <dcb314@hotmail.com> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Jean Delvare <khali@linux-fr.org> Cc: Ben Dooks <ben-linux@fluff.org>
2010-05-20i2c-ibm-iic: drop NO_IRQWolfram Sang
Drop NO_IRQ as 0 is the preferred way to describe 'no irq' (http://lkml.org/lkml/2005/11/21/221). This change is safe, as the driver is only used on powerpc, where NO_IRQ is 0 anyhow. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Sean MacLennan <smaclennan@pikatech.com> Cc: Ben Dooks <ben-linux@fluff.org>
2010-05-20i2c-cpm: drop NO_IRQWolfram Sang
Drop NO_IRQ as 0 is the preferred way to describe 'no irq' (http://lkml.org/lkml/2005/11/21/221). This change is safe, as the driver is only used on powerpc, where NO_IRQ is 0 anyhow. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Jochen Friedrich <jochen@scram.de> Cc: Ben Dooks <ben-linux@fluff.org>
2010-05-20i2c-mpc: drop NO_IRQWolfram Sang
Drop NO_IRQ as 0 is the preferred way to describe 'no irq' (http://lkml.org/lkml/2005/11/21/221). This change is safe, as the driver is only used on powerpc, where NO_IRQ is 0 anyhow. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Grant Likely <grant.likely@secretlab.ca> Cc: Ben Dooks <ben-linux@fluff.org>
2010-05-20i2c-pxa: only define 'blue_murder'-function if DEBUG is #definedWolfram Sang
This talkative function is also called on timeouts. As timeouts can happen on regular writes to EEPROMs (no error case), this creates false positives. Giving lots of details is interesting only for developers anyhow, so just use the function if DEBUG is #defined. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Eric Miao <eric.y.miao@gmail.com> Cc: Roel Kluin <roel.kluin@gmail.com> Cc: Pavel Machek <pavel@ucw.cz>
2010-05-20i2c-pxa: remove unused macroUwe Kleine-König
Commit beea494 ([ARM] Remove EEPROM slave emulation from i2c-pxa driver.) removed all uses of eedbg, so the definition can go, too. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Roel Kluin <roel.kluin@gmail.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2010-05-20i2c-nomadik: fix operator precedence warningRabin Vincent
Fix this warning: i2c-nomadik.c:707: warning: suggest parentheses around operand of '!' or change '&' to '&&' or '!' to '~' Acked-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-20i2c-nomadik: release region when removedRabin Vincent
So that the module can be loaded again after an unload. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-20OMAP3: I2C: Clean up Errata 1p153 handlingmanjugk manjugk
Clean up existing Errata 1p153 handling to use generic errata handling mechanism through dev flag. Signed-off-by: Manjunatha GK <manjugk@ti.com> Cc: Nishanth Menon <nm@ti.com> Cc: Alexander Shishkin <virtuoso@slind.org> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-20OMAP2/3: I2C: Errata ID i207: Clear wrong RDR interruptmanjugk manjugk
Under certain rare conditions, I2C_STAT[13].RDR bit may be set and the corresponding interrupt fire, even there is no data in the receive FIFO, or the I2C data transfer is still ongoing. These spurious RDR events must be ignored by the software. This patch handles and ignores RDR spurious interrupts. The below sequence is required in interrupt handler for handling this errata: 1. If RDR is set to 1, clear RDR 2. Read I2C status register and check for BusBusy bit. If BusBusy bit is set, skip remaining steps. 3. If BusBusy bit is not set, perform read operation on I2C status register. 4. If RDR is set, clear the same. Check RDR again and clear if it sets RDR bit again. 5. Perform I2C Data Read operation N number of times(where N is value read from the register BUFSTAT-RXSTAT bit fields). Note: This errata is not applicable for omap2420 and omap4. It is applicable for: 1. omap2430 2. omap34xx(including omap3630). Signed-off-by: Manjunatha GK <manjugk@ti.com> Cc: Hema Kalliguddi <hemahk@ti.com> Cc: Nishanth Menon <nm@ti.com> Cc: Aaro Koskinen <Aaro.Koskinen@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-20omap: i2c: add a timeout to the busy waitingAlexander Shishkin
The errata 1.153 workaround is busy waiting on XUDF bit in interrupt context, which may lead to kernel hangs. The problem can be reproduced by running the bus with wrong (too high) speed. Signed-off-by: Alexander Shishkin <virtuoso@slind.org> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-20omap: i2c: make errata 1.153 workaround a separate functionAlexander Shishkin
This is to avoid insanely long lines and levels of indentation. Signed-off-by: Alexander Shishkin <virtuoso@slind.org> Cc: Nishant Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-20i2c-omap: add mpu wake up latency constraint in i2cKalle Jokiniemi
While waiting for completion of the i2c transfer, the MPU could hit OFF mode and cause several msecs of delay that made i2c transfers fail more often. The extra delays and subsequent re-trys cause i2c clocks to be active more often. This has also an negative effect on power consumption. Created a mechanism for passing and using the constraint setting function in driver code. The used mpu wake up latency constraints are now set individually per bus, and they are calculated based on clock rate and fifo size. Thanks to Jarkko Nikula, Moiz Sonasath, Paul Walmsley, and Nishanth Menon for tuning out the details of this patch. Updates by Kevin as requested by Tony: - Remove omap_set_i2c_constraint_func() in favor of conditionally adding the flag in omap_i2c_add_bus() in order to keep all the OMAP conditional checking in a single location. - Update set_mpu_wkup_lat prototypes to match OMAP PM layer so OMAP PM function can be used directly in pdata. Cc: Moiz Sonasath <m-sonasath@ti.com> Cc: Jarkko Nikula <jhnikula@gmail.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Nishanth Menon <nm@ti.com> Signed-off-by: Kalle Jokiniemi <kalle.jokiniemi@digia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-20omap: i2c: Add i2c support on omap4 platformSantosh Shilimkar
This patch is rebased version of earlier post to add I2C driver support to OMAP4 platform. On OMAP4, all I2C register address offsets are changed from OMAP1/2/3 I2C. In order to not have #ifdef's at various places in code, as well as to support multi-OMAP build, an array is created to hold the register addresses with it's offset. This patch was submitted, reviewed and acked on mailing list already. For more details refer below link http://www.mail-archive.com/linux-i2c@vger.kernel.org/msg02281.html This updated verion has a depedancy on "Add support for 16-bit registers" posted on linux-omap. Below is the patch-works link for the same http://patchwork.kernel.org/patch/72295/ Signed-off-by: Syed Rafiuddin <rafiuddin.syed@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Reviewed-by: Paul Walmsley <paul@pwsan.com> Cc: Cory Maccarrone <darkstar6262@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-20i2c-bfin-twi: return completion in interrupt for smbus quick transfersSonic Zhang
A smbus quick transfer has no data after the address byte. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-20i2c-bfin-twi: remove redundant retrySonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-20i2c-bfin-twi: fix lost interrupts at high speedsSonic Zhang
i2c event of next read/write byte may trigger before current int state is cleared in the interrupt handler. So, this should be done at the beginning of interrupt handler to avoid losing new i2c events. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-20i2c-bfin-twi: add debug output for error statusMichael Hennerich
Add some debug() code to decode the error register. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-20i2c-bfin-twi: integrate timeout timer with completion interfaceSonic Zhang
There isn't much point in managing our own custom timeout timer when the completion interface already includes support for it. This makes the resulting code much simpler and robust. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-20i2c-s3c2410: Remove unconditional 1ms delay on each transferMark Brown
The S3C I2C controller indicates completion of I2C transfers before the bus has a stop condition on it. In order to ensure that we do not attempt to start a new transfer before the bus is idle the driver currently inserts a 1ms delay. This is vastly larger than is generally required and has a visible effect on performance under load, such as when bringing up audio CODECs or reading back status information with non-bulk I2C reads. Replace the sleep with a spin on the IIC status register for up to 1ms. This will busy wait but testing on my SMDK6410 system indicates that the overwhelming majority of transactions complete on the first spin, with maximum latencies of less than 10 spins so the absolute overhead of busy waiting should be at worst comprable to msleep(), and the overall system performance is dramatically improved. The main risk is poor interaction with multimaster systems where we may miss the bus going idle before the next transaction. Defend against this by falling back to the original 1ms delay after 20 spins. The overall effect in my testing is an approximately 20% improvement in kernel startup time. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-19Merge 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: sparc: Define ARCH_SLAB_MINALIGN drivers/sbus/char/flash.c: flash_read should update ppos instead of file->f_pos sparc64: Fix stack dumping and tracing when function graph is enabled. sparc64: Show stack backtrace from show_regs() just like other platforms.
2010-05-19Merge branch 'davinci-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci * 'davinci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci: (48 commits) Revert "rtc: omap: let device wakeup capability be configured from chip init logic" DM365: Added more PINMUX configurations for AEMIF DM365: Make CLKOUTx available DM365: Added PINMUX definitions for GPIO30..32 Davinci: iotable based ioremap() interception Davinci: pinmux - use ioremap() Davinci: aintc/cpintc - use ioremap() Davinci: psc - use ioremap() Davinci: timer - use ioremap() Davinci: jtag_id - use ioremap() Davinci: da8xx: rtc - use ioremap Davinci: gpio - use ioremap() davinci: edma: fix coding style issue related to breaking lines davinci: edma: use BIT() wherever possible davinci: edma: fix coding style issue related to usage of braces davinci: edma: use a more intuitive name for edma_info Davinci: serial - conditional reset via pwremu Davinci: serial - use ioremap() Davinci: serial - remove unnecessary define Davinci: watchdog reset separation across socs ... Fix up trivial conflict in arch/arm/Kconfig due to removal of "select GENERIC_TIME"
2010-05-19Merge branch 'for-linus/samsung4' of git://git.fluff.org/bjdooks/linuxLinus Torvalds
* 'for-linus/samsung4' of git://git.fluff.org/bjdooks/linux: (98 commits) Input: s3c24xx_ts - depend on SAMSUNG_DEV_TS and update menu entry Input: s3c24xx_ts - Add FEAT for Samsung touchscreen support Input: s3c24xx_ts - Implement generic GPIO configuration callback ARM: SAMSUNG: Move s3c64xx dev-ts.c to plat-samsung and rename configuration ARM: SAMSUNG: Implements cfg_gpio function for Samsung touchscreen ARM: S3C64XX: Add touchscreen platform device definition ARM: SAMSUNG: Move mach/ts.h to plat/ts.h ARM: S5PC100: Move i2c helpers from plat-s5pc1xx to mach-s5pc100 ARM: S5PC100: Move frame buffer helpers from plat-s5pc1xx to mach-s5pc100 ARM: S5PC100: gpio.h cleanup ARM: S5PC100: Move gpio support from plat-s5pc1xx to mach-s5pc100 ARM: S5PC100: Use common functions for gpiolib implementation drivers: serial: S5PC100 serial driver cleanup ARM: S5PC100: Pre-requisite clock patch for plat-s5pc1xx to plat-s5p move ARM: SAMSUNG: Copy common I2C0 device helpers to machine directories ARM: SAMSUNG: move driver strength gpio configuration helper to common dir ARM: S5PV210: Add GPIOlib support ARM: SAMSUNGy: fix broken timer irq base ARM: SMDK6440: Add audio devices on board ARM: S5P6440: Add audio platform devices ...
2010-05-19Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (224 commits) ARM: remove 'select GENERIC_TIME' ARM: 6136/1: ARCH_REQUIRE_GPIOLIB selects GENERIC_GPIO ARM: 6074/1: oprofile: convert from sysdev to platform device ARM: 6073/1: oprofile: remove old files and update KConfig ARM: 6072/1: oprofile: use perf-events framework as backend ARM: 6071/1: perf-events: allow modules to query the number of hardware counters ARM: 6070/1: perf-events: add support for xscale PMUs ARM: 6069/1: perf-events: use numeric ID to identify PMU ARM: 6064/1: pmu: register IRQs at runtime ARM: Optionally allow ARMv6 to use 'normal, bufferable' memory for DMA ARM: 6134/1: Handle instruction cache maintenance fault properly ARM: nwfpe: allow debugging output to be configured at runtime ARM: rename mach_cpu_disable() to platform_cpu_disable() ARM: 6132/1: PL330: Add common core driver ARM: 6094/1: Extend cache-l2x0 to support the 16-way PL310 ARM: Move memory mapping into mmu.c ARM: Ensure meminfo is sorted prior to sanity_check_meminfo ARM: Remove useless linux/bootmem.h includes ARM: convert /proc/cpu/aligment to seq_file arm: use asm-generic/scatterlist.h ...
2010-05-19Revert "rtc: omap: let device wakeup capability be configured from chip init ↵Kevin Hilman
logic" This reverts commit 9c0a342c45b2d98209ac473ea7a429ddd5c1b473 because it was included without proper signoffs from RTC maintainers.
2010-05-19Merge 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: (127 commits) sh: update defconfigs. sh: Fix up the NUMA build for recent LMB changes. sh64: provide a stub per_cpu_trap_init() definition. sh: fix up CONFIG_KEXEC=n build. sh: fixup the docbook paths for clock framework shuffling. driver core: Early dev_name() depends on slab_is_available(). sh: simplify WARN usage in SH clock driver sh: Check return value of clk_get on ms7724 sh: Check return value of clk_get on ecovec24 sh: move sh clock-cpg.c contents to drivers/sh/clk-cpg.c sh: move sh clock.c contents to drivers/sh/clk. sh: move sh asm/clock.h contents to linux/sh_clk.h V2 sh: remove unused clock lookup sh: switch boards to clkdev sh: switch sh4-202 to clkdev sh: switch shx3 to clkdev sh: switch sh7757 to clkdev sh: switch sh7763 to clkdev sh: switch sh7780 to clkdev sh: switch sh7786 to clkdev ...
2010-05-19Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (24 commits) [S390] drivers/s390/char: Use kmemdup [S390] drivers/s390/char: Use kstrdup [S390] debug: enable exception-trace debug facility [S390] s390_hypfs: Add new attributes [S390] qdio: remove API wrappers [S390] qdio: set correct bit in dsci [S390] qdio: dont convert timestamps to microseconds [S390] qdio: remove memset hack [S390] qdio: prevent starvation on PCI devices [S390] qdio: count number of qdio interrupts [S390] user space fault: report fault before calling do_exit [S390] topology: expose core identifier [S390] dasd: remove uid from devmap [S390] dasd: add dynamic pav toleration [S390] vdso: add missing vdso_install target [S390] vdso: remove redundant check for CONFIG_64BIT [S390] avoid default_llseek in s390 drivers [S390] vmcp: disallow modular build [S390] add breaking event address for user space [S390] virtualization aware cpu measurement ...
2010-05-19libata-sff: separate out BMDMA qc_issueTejun Heo
Separate out ata_bmdma_qc_issue() from ata_sff_qc_issue() such that ata_sff_qc_issue() only deals with non-BMDMA SFF protocols (PIO and nodata) while ata_bmdma_qc_issue() deals with the BMDMA protocols and uses ata_sff_qc_issue() for non-DMA commands. All the users are updated accordingly. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-05-19libata-sff: prd is BMDMA specificTejun Heo
struct ata_prd and ap->prd are BMDMA specific. Add bmdma_ prefix to them and move them inside CONFIG_ATA_SFF. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-05-19libata-sff: ata_sff_[dumb_]qc_prep are BMDMA specificTejun Heo
Both qc_prep functions deal only with BMDMA PRD setup and PIO only SFF drivers don't need them. Rename to ata_bmdma_[dumb_]qc_prep() and relocate. All usages are renamed except for pdc_adma and sata_qstor. Those two drivers are not BMDMA drivers and don't need to call BMDMA qc_prep functions. Calls to ata_sff_qc_prep() in the two drivers are removed. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-05-19libata-sff: separate out BMDMA EHTejun Heo
Some of error handling logic in ata_sff_error_handler() and all of ata_sff_post_internal_cmd() are for BMDMA. Create ata_bmdma_error_handler() and ata_bmdma_post_internal_cmd() and move BMDMA part into those. While at it, change DMA protocol check to ata_is_dma(), fix post_internal_cmd to call ap->ops->bmdma_stop instead of directly calling ata_bmdma_stop() and open code hardreset selection so that ata_std_error_handler() doesn't have to know about sff hardreset. As these two functions are BMDMA specific, there's no reason to check for bmdma_addr before calling bmdma methods if the protocol of the failed command is DMA. sata_mv and pata_mpc52xx now don't need to set .post_internal_cmd to ATA_OP_NULL and pata_icside and sata_qstor don't need to set it to their bmdma_stop routines. ata_sff_post_internal_cmd() becomes noop and is removed. This fixes p3 described in clean-up-BMDMA-initialization patch. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-05-19libata-sff: port_task is SFF specificTejun Heo
port_task is tightly bound to the standard SFF PIO HSM implementation. Using it for any other purpose would be error-prone and there's no such user and if some drivers need such feature, it would be much better off using its own. Move it inside CONFIG_ATA_SFF and rename it to sff_pio_task. The only function which is exposed to the core layer is ata_sff_flush_pio_task() which is renamed from ata_port_flush_task() and now also takes care of resetting hsm_task_state to HSM_ST_IDLE, which is possible as it's now specific to PIO HSM. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-05-19libata-sff: ap->[last_]ctl are SFF specificTejun Heo
ap->[last_]ctl are specific to SFF controllers. Put them inside CONFIG_ATA_SFF and move initialization into ata_sff_port_init(). Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-05-19libata-sff: rename ap->ops->drain_fifo() to sff_drain_fifo()Tejun Heo
->drain_fifo() is SFF specific. Rename and relocate it. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-05-19libata-sff: introduce ata_sff_init/exit() and ata_sff_port_init()Tejun Heo
In preparation of proper SFF/BMDMA separation, introduce ata_sff_init/exit() and ata_sff_port_init(). These functions currently don't do anything. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-05-19libata-sff: clean up BMDMA initializationTejun Heo
When BMDMA initialization failed or BMDMA was not available for whatever reason, bmdma_addr was left at zero and used as an indication that BMDMA shouldn't be used. This leads to the following problems. p1. For BMDMA drivers which don't use traditional BMDMA register, ata_bmdma_mode_filter() incorrectly inhibits DMA modes. Those drivers either have to inherit from ata_sff_port_ops or clear ->mode_filter explicitly. p2. non-BMDMA drivers call into BMDMA PRD table allocation. It doesn't actually allocate PRD table if bmdma_addr is not initialized but is still confusing. p3. For BMDMA drivers which don't use traditional BMDMA register, some methods might not be invoked as expected (e.g. bmdma_stop from ata_sff_post_internal_cmd()). p4. SFF drivers w/ custom DMA interface implement noop BMDMA ops worrying libata core might call into one of them. These problems are caused by the muddy line between SFF and BMDMA and the assumption that all BMDMA controllers initialize bmdma_addr. This patch fixes p1 and p2 by removing the bmdma_addr assumption and moving prd allocation to BMDMA port start. Later patches will fix the remaining issues. This patch improves BMDMA initialization such that * When BMDMA register initialization fails, falls back to PIO instead of failing. ata_pci_bmdma_init() never fails now. * When ata_pci_bmdma_init() falls back to PIO, it clears ap->mwdma_mask and udma_mask instead of depending on ata_bmdma_mode_filter(). This makes ata_bmdma_mode_filter() unnecessary thus resolving p1. * ata_port_start() which actually is BMDMA specific is moved to ata_bmdma_port_start(). ata_port_start() and ata_sff_port_start() are killed. * ata_sff_port_start32() is moved and renamed to ata_bmdma_port_start32(). Drivers which no longer call into PRD table allocation are... pdc_adma, sata_inic162x, sata_qstor, sata_sx4, pata_cmd640 and all drivers which inherit from ata_sff_port_ops. pata_icside sets ->port_start to ATA_OP_NULL as it doesn't need PRD but is a BMDMA controller and doesn't have custom port_start like other such controllers. Note that with the previous patch which makes all and only BMDMA drivers inherit from ata_bmdma_port_ops, this change doesn't break drivers which need PRD table. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-05-19libata-sff: clean up inheritance in several driversTejun Heo
1. pata_cmd640 is PIO only. Inherit from sff. 2. pata_macio is BMDMA. Inherit from bmdma and drop explicit bmdma_mode_filter() setting. 3. In sata_mv, unlike mv5, mv6 is BMDMA. Inherit from bmdma and don't clear ->post_internal_cmd(). 4. bf54x and icside are quasi-BMDMA controllers which don't use the standard BMDMA registers so they don't initialize bmdma_addr and inherit from sff to avoid the default mode_filter which disables DMA modes if bmdma_addr is not initialized. For 2 and 3, this patch makes the drivers explicitly specify ->mode_filter to ATA_OP_NULL while inheriting from ata_bmdma_port_ops. These will be removed by the next patch. This patch makes all and only BMDMA drivers inherit from ata_bmdma_port_ops to ease further SFF/BMDMA separation. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-05-19V4L/DVB (13554a): v4l: Use the video_drvdata function in driversMauro Carvalho Chehab
Fix all device drivers to use the video_drvdata function instead of maintaining a local list of minor to private data mappings. Call video_set_drvdata to register the driver private pointer when not already done. Where applicable, the local list of mappings is completely removed when it becomes unused. [mchehab.redhat.com: patch broke into two. This one changes just tm6000] Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>