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* move async raid6 test to lib/Kconfig.debugDan Williams2010-10-07
| | | | | | | | | | | The prompt for "Self test for hardware accelerated raid6 recovery" does not belong in the top level configuration menu. All the options in crypto/async_tx/Kconfig are selected and do not depend on CRYPTO. Kconfig.debug seems like a reasonable fit. Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
*-----. Merge branches 'dma40', 'pl08x', 'fsldma', 'imx' and 'intel-mid' into dmaengineDan Williams2010-10-07
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| | | | * intel_mid_dma: change the slave interfaceKoul, Vinod2010-10-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In 2.6.36 kernel, dma slave control command was introduced, this patch changes the intel-mid-dma driver to this new kernel slave interface Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| | | | * intel_mid_dma: fix the WARN_ONsKoul, Vinod2010-10-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Moved the WARN_ON to BUG_ON, as WARN_ON if hit, can cause null pointer derefrences Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| | | | * intel_mid_dma: Add sg list support to DMA driverRamesh Babu K V2010-10-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For a very high speed DMA various periphral devices need scatter-gather list support. The DMA hardware support link list items. This list can be circular also (adding new flag DMA_PREP_CIRCULAR_LIST) Right now this flag is in driver header and should be moved to dmaengine header file eventually Signed-off-by: Ramesh Babu K V <ramesh.b.k.v@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| | | | * intel_mid_dma: Allow DMAC2 to share interruptYong Wang2010-10-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow DMAC2 to share interrupt since exclusive interrupt line for mrst DMAC2 is not provided on other platforms. Signed-off-by: Yong Wang <yong.y.wang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| | | | * intel_mid_dma: Allow IRQ sharingYong Wang2010-10-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | intel_mid_dma driver allows interrupt sharing. Thus it needs to check whether IRQ source is the DMA controller and return the appropriate IRQ return. Signed-off-by: Yong Wang <yong.y.wang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| | | | * intel_mid_dma: Add runtime PM supportKoul, Vinod2010-10-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds runtime PM support in this dma driver for 4 PCI Controllers Whenever the driver is idle (no channels grabbed), it can go to low power state It also adds the PCI suspend and resume support Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| | | * | dmaengine: Add Freescale i.MX1/21/27 DMA driverSascha Hauer2010-10-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver is currently implemented as a user to the old i.MX DMA API. This allows us to convert each user of the old API to the dmaengine API one by one. Once this is done the old DMA driver can be merged into the i.MX dmaengine driver. V2: remove some debug leftovers and unused variables Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| | | * | dmaengine: Add Freescale i.MX SDMA supportSascha Hauer2010-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for the Freescale i.MX SDMA engine. The SDMA engine is a scatter/gather DMA engine which is implemented as a seperate coprocessor. SDMA needs its own firmware which is requested using the standard request_firmware mechanism. The firmware has different entry points for each peripheral type, so drivers have to pass the peripheral type to the DMA engine which in turn picks the correct firmware entry point from a table contained in the firmware image itself. The original Freescale code also supports support for transfering data to the internal SRAM which needs different entry points to the firmware. Support for this is currently not implemented. Also, support for the ASRC (asymmetric sample rate converter) is skipped. I took a very simple approach to implement dmaengine support. Only a single descriptor is statically assigned to a each channel. This means that transfers can't be queued up but only a single transfer is in progress. This simplifies implementation a lot and is sufficient for the usual device/memory transfers. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Linus Walleij <linus.ml.walleij@gmail.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| | | * | dmaengine: add wrapper functions for device control functionsSascha Hauer2010-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add wrapper functions around the dma_device->device_control function to bring back type safety. Also, add a wrapper function around dma_async_tx_descriptor->tx_submit. This is named dmaengine_submit instead of dmaengine_tx_submit to get rid of the confusing 'tx' in the function name Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| | | * | dmaengine: add possibility for cyclic transfersSascha Hauer2010-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cyclic transfers are useful for audio where a single buffer divided in periods has to be transfered endlessly until stopped. After being prepared the transfer is started using the dma_async_descriptor->tx_submit function. dma_async_descriptor->callback is called after each period. The transfer is stopped using the DMA_TERMINATE_ALL callback. While being used for cyclic transfers the channel cannot be used for other transfer types. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Cc: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| | * | | ste_dma40: implement support for scatterlist to scatterlist copyIra Snyder2010-10-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the DMAEngine API has support for scatterlist to scatterlist copy, implement support for the STE DMA40 DMA controller. Cc: Linus Walleij <linus.ml.walleij@gmail.com> Acked-by: Per Fridén <per.friden@stericsson.com> Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| | * | | fsldma: improved DMA_SLAVE supportIra Snyder2010-10-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the generic DMAEngine API has support for scatterlist to scatterlist copying, the device_prep_slave_sg() portion of the DMA_SLAVE API is no longer necessary and has been removed. However, the device_control() portion of the DMA_SLAVE API is still useful to control device specific parameters, such as externally controlled DMA transfers and maximum burst length. A special dma_ctrl_cmd has been added to enable externally controlled DMA transfers. This is currently specific to the Freescale DMA controller, but can easily be made generic when another user is found. Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| | * | | fsldma: implement support for scatterlist to scatterlist copyIra Snyder2010-10-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the DMAEngine API has support for scatterlist to scatterlist copy, implement support for the Freescale DMA controller. Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| | * | | dma: add support for scatterlist to scatterlist copyIra Snyder2010-10-07
| | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds support for scatterlist to scatterlist DMA transfers. A similar interface is exposed by the fsldma driver (through the DMA_SLAVE API) and by the ste_dma40 driver (through an exported function). This patch paves the way for making this type of copy operation a part of the generic DMAEngine API. Futher patches will add support in individual drivers. Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| | * | dmaengine: fix interrupt clearing for mv_xorSimon Guinot2010-09-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When using simultaneously the two DMA channels on a same engine, some transfers are never completed. For example, an endless lock can occur while writing heavily on a RAID5 array (with async-tx offload support enabled). Note that this issue can also be reproduced by using the DMA test client. On a same engine, the interrupt cause register is shared between two DMA channels. This patch make sure that the cause bit is only cleared for the requested channel. Signed-off-by: Simon Guinot <sguinot@lacie.com> Tested-by: Luc Saillard <luc@saillard.org> Acked-by: saeed bishara <saeed.bishara@gmail.com> Cc: <stable@kernel.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| | * | missing inline keyword for static function in linux/dmaengine.hMathieu Lacage2010-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a missing inline keyword for static function in linux/dmaengine.h to avoid duplicate symbol definitions. Signed-off-by: Mathieu Lacage <mathieu.lacage@sophia.inria.fr> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| | * | dma/shdma: move dereference below the NULL checkDan Carpenter2010-09-22
| | |/ | | | | | | | | | | | | | | | | | | "param" can be NULL here, so only dereference it after the check. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| * / dmaengine: driver for the ARM PL080/PL081 PrimeCells v5Linus Walleij2010-09-29
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This creates a DMAengine driver for the ARM PL080/PL081 PrimeCells based on the implementation earlier submitted by Peter Pearse. This is working like a charm for memcpy and slave DMA to the PL011 PrimeCell on the PB11MPCore. This DMA controller is used in mostly unmodified form in the ARM RealView and Versatile platforms, in the ST-Ericsson Nomadik, and in the ST SPEAr platform. It has been converted to use the header from the Samsung PL080 derivate instead of its own defintions. The Samsungs have a custom driver in their mach-* folders though, atleast we can share the register definitions. Cc: Peter Pearse <peter.pearse@arm.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Alessandro Rubini <rubini@unipv.it> Acked-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> [GFP_KERNEL to GFP_NOWAIT in pl08x_prep_dma_memcpy] Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: define a dummy filter function for ste_dma40Linus Walleij2010-10-07
| | | | | | | | | | | | | | | | | | All platform data has to be made conditional on CONFIG_STEDMA40 or we can provide a simple dummy filter functions as to avoid cluttering the code with other #ifdef:s. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: Remove stedma40_set_psize and pre_transfer hook in ste_dma40Per Forlin2010-10-07
| | | | | | | | | | | | | | | | | | | | | | Remove obsolete pre_transfer hook in stedma40_chan_cfg. The intent of this hook is merely to handle burst size compensation for ux500 variant MMCI. Remove obsolete stedma40_set_psize since it is only called from pre_transfer. DMAEngine device_control replaces the functionality of stedma40_set_psize. Signed-off-by: Per Forlin <per.forlin@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: Set burst size for phy and log chans in ste_dma40 dev_controlPer Forlin2010-10-07
| | | | | | | | | | | | | | | | | | | | Set burst for physical or logical channels respectively. Convert the values in dma_cfg to dma reg bits for physical or logical channels. Signed-off-by: Per Forlin <per.forlin@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: ste_dma40: fix resource leaks in error paths.Rabin Vincent2010-10-07
| | | | | | | | | | | | | | | | | | Fix some leaks of allocated descriptors in error paths. Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: ste_dma40: fix desc_getRabin Vincent2010-10-07
| | | | | | | | | | | | | | | | | | | | | | Fix desc_get to alloc a descriptor from the cache if the ones in the list are waiting for the ack. Also, memzero the descriptor when allocated from the list to ensure all fields are cleared. Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: ste_dma40: fix clk_get failure pathRabin Vincent2010-10-07
| | | | | | | | | | | | | | | | | | clk_get returns an ERR_PTR. Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: ste_dma40: fix disabled channels listRabin Vincent2010-10-07
| | | | | | | | | | | | | | | | | | | | The value in the array, not the index, specifies the channel to be disabled. Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: ste_dma40: added kernel doc for structJonas Aaberg2010-09-22
| | | | | | | | | | | | | | | | The half-channel struct was undocumented. Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: ste_dma40: don't pause/resume non-executing channelsJonas Aaberg2010-09-22
| | | | | | | | | | | | | | | | There is no point in pausing what isn't running. Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: ste_dma40: removed non-used variable from structJonas Aaberg2010-09-22
| | | | | | | | | | | | | | | | The reqrite of the LCLA code rendered this variable unused. Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: ste_dma40: rewrote LCLA entries allocation codeJonas Aaberg2010-09-22
| | | | | | | | | | | | | | | | | | | | | | | | LLI allocation is now done on job level instead of channel level. Previously the maximum length of a linked job in hw on a logical channel was 8, since the LLIs where evenly divided. Now only executing jobs have allocated LLIs which increase the length to a maximum of 64 links in HW. Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: ste_dma40: fix possible use of uninitialized variableJonas Aaberg2010-09-22
| | | | | | | | | | | | Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: ste_dma40: corrected is_paused behaviorJonas Aaberg2010-09-22
| | | | | | | | | | | | | | | | The handling of pause detection was slightly incorrect. Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: ste_dma40: code clean-upJonas Aaberg2010-09-22
| | | | | | | | | | | | | | | | | | This patch includes non functional code clean up changes, file header updates and a few magic numbers got defined. Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: ste_dma40: added support for link jobs in hwJonas Aaberg2010-09-22
| | | | | | | | | | | | | | | | | | | | If a new job is added on a physical channel that already has a job, the new job is linked in hw to the old job instead of queueing up the jobs. Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: ste_dma40: removed a few magic numbersJonas Aaberg2010-09-22
| | | | | | | | | | | | | | | | | | Make sure to extract the revision field explicitly and document what bits are being accessed here without magic numbers. Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: ste_dma40: fix bug related to callback handlingJonas Aaberg2010-09-22
| | | | | | | | | | | | | | | | | | The callback got called even when it was not supposed to. Also removed some not needed interrupt trigger on/off code. Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: ste_dma40: Code clean-up and removed an unneeded suspend requestJonas Aaberg2010-09-22
| | | | | | | | | | | | | | | | | | This patch cleans up some code and removes a suspend request that was pointless since the hw was never configured nor running when it was called. Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: ste_dma40: No need reading, masking and setting a set registerJonas Aaberg2010-09-22
| | | | | | | | | | | | | | | | Removes an unnecessary register read and a few lines of code. Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: ste_dma40: Fix failed to restart logical channel bugJonas Aaberg2010-09-22
| | | | | | | | | | | | | | | | | | A transfer that runs in the different direction on the same channel will now be resumed when the other is suspend/stopped. Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | DMAENGINE: ste_dma40: config checksLinus Walleij2010-09-22
|/ | | | | | | | Added various configuration checks. Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* Linux 2.6.36-rc5v2.6.36-rc5Linus Torvalds2010-09-20
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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6Linus Torvalds2010-09-20
|\ | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: Staging: vt6655: fix buffer overflow Revert: "Staging: batman-adv: Adding netfilter-bridge hooks"
| * Staging: vt6655: fix buffer overflowDan Carpenter2010-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "param->u.wpa_associate.wpa_ie_len" comes from the user. We should check it so that the copy_from_user() doesn't overflow the buffer. Also further down in the function, we assume that if "param->u.wpa_associate.wpa_ie_len" is set then "abyWPAIE[0]" is initialized. To make that work, I changed the test here to say that if "wpa_ie_len" is set then "wpa_ie" has to be a valid pointer or we return -EINVAL. Oddly, we only use the first element of the abyWPAIE[] array. So I suspect there may be some other issues in this function. Signed-off-by: Dan Carpenter <error27@gmail.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Revert: "Staging: batman-adv: Adding netfilter-bridge hooks"Sven Eckelmann2010-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 96d592ed599434d2d5f339a1d282871bc6377d2c. The netfilter hook seems to be misused and may leak skbs in situations when NF_HOOK returns NF_STOLEN. It may not filter everything as expected. Also the ethernet bridge tables are not yet capable to understand batman-adv packet correctly. It was only added for testing purposes and can be removed again. Reported-by: Vasiliy Kulikov <segooon@gmail.com> Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds2010-09-20
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: USB: musb: MAINTAINERS: Fix my mail address USB: serial/mos*: prevent reading uninitialized stack memory USB: otg: twl4030: fix phy initialization(v1) USB: EHCI: Disable langwell/penwell LPM capability usb: musb_debugfs: don't use the struct file private_data field with seq_files
| * | USB: musb: MAINTAINERS: Fix my mail addressFelipe Balbi2010-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | If we don't, contributors to musb and any USB OMAP code will be sending mails to an unexistent inbox. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: serial/mos*: prevent reading uninitialized stack memoryDan Rosenberg2010-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The TIOCGICOUNT device ioctl in both mos7720.c and mos7840.c allows unprivileged users to read uninitialized stack memory, because the "reserved" member of the serial_icounter_struct struct declared on the stack is not altered or zeroed before being copied back to the user. This patch takes care of it. Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: otg: twl4030: fix phy initialization(v1)Ming Lei2010-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 461c317705eca5cac09a360f488715927fd0a927(into 2.6.36-v3) is put forward to power down phy if no usb cable is connected, but does introduce the two issues below: 1), phy is not into work state if usb cable is connected with PC during poweron, so musb device mode is not usable in such case, follows the reasons: -twl4030_phy_resume is not called, so regulators are not enabled i2c access are not enabled usb mode not configurated 2), The kernel warings[1] of regulators 'unbalanced disables' is caused if poweron without usb cable connected with PC or b-device. This patch fixes the two issues above: -power down phy only if no usb cable is connected with PC and b-device -do phy initialization(via __twl4030_phy_resume) if usb cable is connected with PC(vbus event) or another b-device(ID event) in twl4030_usb_probe. This patch also doesn't put VUSB3V1 LDO into active mode in twl4030_usb_ldo_init until VBUS/ID change detected, so we can save more power consumption than before. This patch is verified OK on Beagle board either connected with usb cable or not when poweron. [1]. warnings of 'unbalanced disables' of regulators. [root@OMAP3EVM /]# dmesg ------------[ cut here ]------------ WARNING: at drivers/regulator/core.c:1357 _regulator_disable+0x38/0x128() unbalanced disables for VUSB1V8 Modules linked in: Backtrace: [<c0030c48>] (dump_backtrace+0x0/0x110) from [<c034f5a8>] (dump_stack+0x18/0x1c) r7:c78179d8 r6:c01ed6b8 r5:c0410822 r4:0000054d [<c034f590>] (dump_stack+0x0/0x1c) from [<c0057da8>] (warn_slowpath_common+0x54/0x6c) [<c0057d54>] (warn_slowpath_common+0x0/0x6c) from [<c0057e64>] (warn_slowpath_fmt+0x38/0x40) r9:00000000 r8:00000000 r7:c78e6608 r6:00000000 r5:fffffffb r4:c78e6c00 [<c0057e2c>] (warn_slowpath_fmt+0x0/0x40) from [<c01ed6b8>] (_regulator_disable+0x38/0x128) r3:c0410e53 r2:c0410ad5 [<c01ed680>] (_regulator_disable+0x0/0x128) from [<c01ed87c>] (regulator_disable+0x24/0x38) r7:c78e6608 r6:00000000 r5:c78e6c40 r4:c78e6c00 [<c01ed858>] (regulator_disable+0x0/0x38) from [<c02382dc>] (twl4030_phy_power+0x15c/0x17c) r5:c78595c0 r4:00000000 [<c0238180>] (twl4030_phy_power+0x0/0x17c) from [<c023831c>] (twl4030_phy_suspend+0x20/0x2c) r6:00000000 r5:c78595c0 r4:c78595c0 [<c02382fc>] (twl4030_phy_suspend+0x0/0x2c) from [<c0238638>] (twl4030_usb_irq+0x11c/0x16c) r5:c78595c0 r4:00000040 [<c023851c>] (twl4030_usb_irq+0x0/0x16c) from [<c034ec18>] (twl4030_usb_probe+0x2c4/0x32c) r6:00000000 r5:00000000 r4:c78595c0 [<c034e954>] (twl4030_usb_probe+0x0/0x32c) from [<c02152a0>] (platform_drv_probe+0x20/0x24) r7:00000000 r6:c047d49c r5:c78e6608 r4:c047d49c [<c0215280>] (platform_drv_probe+0x0/0x24) from [<c0214244>] (driver_probe_device+0xd0/0x190) [<c0214174>] (driver_probe_device+0x0/0x190) from [<c02143d4>] (__device_attach+0x44/0x48) r7:00000000 r6:c78e6608 r5:c78e6608 r4:c047d49c [<c0214390>] (__device_attach+0x0/0x48) from [<c0213694>] (bus_for_each_drv+0x50/0x90) r5:c0214390 r4:00000000 [<c0213644>] (bus_for_each_drv+0x0/0x90) from [<c0214474>] (device_attach+0x70/0x94) r6:c78e663c r5:c78e6608 r4:c78e6608 [<c0214404>] (device_attach+0x0/0x94) from [<c02134fc>] (bus_probe_device+0x2c/0x48) r7:00000000 r6:00000002 r5:c78e6608 r4:c78e6600 [<c02134d0>] (bus_probe_device+0x0/0x48) from [<c0211e48>] (device_add+0x340/0x4b4) [<c0211b08>] (device_add+0x0/0x4b4) from [<c021597c>] (platform_device_add+0x110/0x16c) [<c021586c>] (platform_device_add+0x0/0x16c) from [<c0220cb0>] (add_numbered_child+0xd8/0x118) r7:00000000 r6:c045f15c r5:c78e6600 r4:00000000 [<c0220bd8>] (add_numbered_child+0x0/0x118) from [<c001c618>] (twl_probe+0x3a4/0x72c) [<c001c274>] (twl_probe+0x0/0x72c) from [<c02601ac>] (i2c_device_probe+0x7c/0xa4) [<c0260130>] (i2c_device_probe+0x0/0xa4) from [<c0214244>] (driver_probe_device+0xd0/0x190) r5:c7856e20 r4:c047c860 [<c0214174>] (driver_probe_device+0x0/0x190) from [<c02143d4>] (__device_attach+0x44/0x48) r7:c7856e04 r6:c7856e20 r5:c7856e20 r4:c047c860 [<c0214390>] (__device_attach+0x0/0x48) from [<c0213694>] (bus_for_each_drv+0x50/0x90) r5:c0214390 r4:00000000 [<c0213644>] (bus_for_each_drv+0x0/0x90) from [<c0214474>] (device_attach+0x70/0x94) r6:c7856e54 r5:c7856e20 r4:c7856e20 [<c0214404>] (device_attach+0x0/0x94) from [<c02134fc>] (bus_probe_device+0x2c/0x48) r7:c7856e04 r6:c78fd048 r5:c7856e20 r4:c7856e20 [<c02134d0>] (bus_probe_device+0x0/0x48) from [<c0211e48>] (device_add+0x340/0x4b4) [<c0211b08>] (device_add+0x0/0x4b4) from [<c0211fd8>] (device_register+0x1c/0x20) [<c0211fbc>] (device_register+0x0/0x20) from [<c0260aa8>] (i2c_new_device+0xec/0x150) r5:c7856e00 r4:c7856e20 [<c02609bc>] (i2c_new_device+0x0/0x150) from [<c0260dc0>] (i2c_register_adapter+0xa0/0x1c4) r7:00000000 r6:c78fd078 r5:c78fd048 r4:c781d5c0 [<c0260d20>] (i2c_register_adapter+0x0/0x1c4) from [<c0260f80>] (i2c_add_numbered_adapter+0x9c/0xb4) r7:00000a28 r6:c04600a8 r5:c78fd048 r4:00000000 [<c0260ee4>] (i2c_add_numbered_adapter+0x0/0xb4) from [<c034efa4>] (omap_i2c_probe+0x324/0x3e8) r5:00000000 r4:c78fd000 [<c034ec80>] (omap_i2c_probe+0x0/0x3e8) from [<c02152a0>] (platform_drv_probe+0x20/0x24) [<c0215280>] (platform_drv_probe+0x0/0x24) from [<c0214244>] (driver_probe_device+0xd0/0x190) [<c0214174>] (driver_probe_device+0x0/0x190) from [<c021436c>] (__driver_attach+0x68/0x8c) r7:c78b2140 r6:c047e214 r5:c04600e4 r4:c04600b0 [<c0214304>] (__driver_attach+0x0/0x8c) from [<c021399c>] (bus_for_each_dev+0x50/0x84) r7:c78b2140 r6:c047e214 r5:c0214304 r4:00000000 [<c021394c>] (bus_for_each_dev+0x0/0x84) from [<c0214068>] (driver_attach+0x20/0x28) r6:c047e214 r5:c047e214 r4:c00270d0 [<c0214048>] (driver_attach+0x0/0x28) from [<c0213274>] (bus_add_driver+0xa8/0x228) [<c02131cc>] (bus_add_driver+0x0/0x228) from [<c02146a4>] (driver_register+0xb0/0x13c) [<c02145f4>] (driver_register+0x0/0x13c) from [<c0215744>] (platform_driver_register+0x4c/0x60) r9:00000000 r8:c001f688 r7:00000013 r6:c005b6fc r5:c00083dc r4:c00270d0 [<c02156f8>] (platform_driver_register+0x0/0x60) from [<c001f69c>] (omap_i2c_init_driver+0x14/0x1c) [<c001f688>] (omap_i2c_init_driver+0x0/0x1c) from [<c002c460>] (do_one_initcall+0xd0/0x1a4) [<c002c390>] (do_one_initcall+0x0/0x1a4) from [<c0008478>] (kernel_init+0x9c/0x154) [<c00083dc>] (kernel_init+0x0/0x154) from [<c005b6fc>] (do_exit+0x0/0x688) r5:c00083dc r4:00000000 ---[ end trace 1b75b31a2719ed1d ]--- Signed-off-by: Ming Lei <tom.leiming@gmail.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Felipe Balbi <me@felipebalbi.com> Cc: Anand Gadiyar <gadiyar@ti.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: EHCI: Disable langwell/penwell LPM capabilityAlek Du2010-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have to do so due to HW limitation. Signed-off-by: Alek Du <alek.du@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-07 07:45:33 -0500