- 05 7月, 2013 34 次提交
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由 Guennadi Liakhovetski 提交于
This patch adds Device Tree support to the shdma driver. No special DT properties are used, only standard DMA DT bindings are implemented. Since shdma controllers reside on SoCs, their configuration is SoC-specific and shall be passed to the driver from the SoC platform data, using the auxdata procedure. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Guennadi Liakhovetski 提交于
Use an existing pointer instead of retrieving it again. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Boris BREZILLON 提交于
Replace clk_enable/disable with clk_prepare_enable/disable_unprepare to avoid common clk framework warnings. Signed-off-by: NBoris BREZILLON <b.brezillon@overkiz.com> [nicolas.ferre@atmel.com: remove return code checking in at_dma_resume_noirq()] Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
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由 Nicolas Ferre 提交于
Correct coding style following the patch: 7c407d3e54dcc0c79119553c8d5ef176c1d5bc3a (DMA: AT91: Get residual bytes in dma buffer). Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
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由 Nicolas Ferre 提交于
Since patch 7c407d3e54dcc0c79119553c8d5ef176c1d5bc3a (DMA: AT91: Get residual bytes in dma buffer), the function atc_cleanup_descriptors() is not used anymore. We remove it to prevent warnings. Reported-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> Acked-by: NArnd Bergmann <arnd@arndb.de>
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由 Ludovic Desroches 提交于
For most devices the FIFO configuration is the same i.e. when half FIFO size is available/filled, a source/destination request is serviced. But USART devices have to do it when there is enough space/data available to perform a single AHB access so the ASAP configuration. Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: NLudovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
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由 Lars-Peter Clausen 提交于
Now that all users of the custom jz4740 DMA API have been converted to use the dmaengine API instead we can remove the custom API and move all the code talking to the hardware to the dmaengine driver. Signed-off-by: NLars-Peter Clausen <lars@metafoo.de> Acked-by: NRalf Baechle <ralf@linux-mips.org> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Lars-Peter Clausen 提交于
This patch adds dmaengine support for the JZ4740 DMA controller. For now the driver will be a wrapper around the custom JZ4740 DMA API. Once all users of the custom JZ4740 DMA API have been converted to the dmaengine API the custom API will be removed and direct hardware access will be added to the dmaengine driver. Signed-off-by: NLars-Peter Clausen <lars@metafoo.de> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Qiao Zhou 提交于
mask dma irq when disabling dma channel, so that interrupt status will not be set and interrupt won't come again. Signed-off-by: NQiao Zhou <zhouqiao@marvell.com> Acked-by: NZhangfei Gao <zhangfei.gao@gmail.com> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Mark Brown 提交于
As pointed out by Arnd Bergmann there is a get_signal macro definied in linux/signal.h which can conflict with the platform data callback function of the same name leading to confusing errors from the compiler (especially if signal.h manages to get pulled into the driver itself due to header dependencies). Avoid such errors by renaming get_signal and put_signal in the platform data to get_xfer_signal and put_xfer_signal. Signed-off-by: NMark Brown <broonie@linaro.org> Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Vinod Koul 提交于
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Andy Shevchenko 提交于
This is the PCI part of the DesignWare DMAC driver. The controller is usually used in the Intel hardware such as Intel Medfield. Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NViresh Kumar <viresh.kumar@linaro.org> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Andy Shevchenko 提交于
To simplify the driver development let's split driver to library and platform code parts. It helps us to add PCI driver in future. Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NViresh Kumar <viresh.kumar@linaro.org> [Fixed compile error and few checkpatch issues] Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Andy Shevchenko 提交于
The dw_dmac driver is going to be split into multiple files. To make this more convenient move it to an own directory. Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: NViresh Kumar <viresh.kumar@linaro.org> Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Andy Shevchenko 提交于
devm_ioremap_resource does sanity checks on the given resource. No need to duplicate this in the driver. Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: NViresh Kumar <viresh.kumar@linaro.org> Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Will Deacon 提交于
The microcode bus address (pl330_dmac.mcode_bus) is currently a u32, which fails to compile when building on a system with 64-bit bus addresses. This patch uses dma_addr_t to represent the address instead. Cc: Jassi Brar <jaswinder.singh@linaro.org> Cc: Vinod Koul <vinod.koul@intel.com> Signed-off-by: NWill Deacon <will.deacon@arm.com> Acked-by: NJassi Brar <jaswinder.singh@linaro.org> Acked-by: NGrant Likely <grant.likely@linaro.org> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Will Deacon 提交于
The PL330 driver probes the peripheral and primecell IDs of the device to make sure that it is indeed an AMBA PL330. However, it does this by making byte accesses to a device mapping of the word-aligned ID registers, which is either UNPREDICTABLE or generates an alignment fault (depending on the presence of the virtualisation extensions). Rather than fix this code, we can actually rip most of it out and let the AMBA bus driver correctly do the probing for us. Cc: Jassi Brar <jaswinder.singh@linaro.org> Cc: Vinod Koul <vinod.koul@intel.com> Signed-off-by: NWill Deacon <will.deacon@arm.com> Acked-by: NJassi Brar <jaswinder.singh@linaro.org> Acked-by: NGrant Likely <grant.likely@linaro.org> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Shawn Guo 提交于
Update imx-sdma driver to adopt generic DMA device tree bindings. It calls of_dma_controller_register() with imx-sdma specific of_dma_xlate to get the generic DMA device tree helper support. The #dma-cells for imx-sdma must be 3, which includes request ID, peripheral type and priority. The existing way of requesting channel, clients directly call dma_request_channel(), still work there, and will be removed after all imx-sdma clients get converted to generic DMA device tree helper. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Signed-off-by: NVinod Koul <vinod.koul@intel.com> Acked-by: NArnd Bergmann <arnd@arndb.de>
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由 Rongjun Ying 提交于
read SIRFSOC_DMA_CH_ADDR register to get current dma transfer position, then update dma residue so that things like ALSA drivers work as ALSA drivers need the right residue value. Signed-off-by: NRongjun Ying <Rongjun.Ying@csr.com> Signed-off-by: NBarry Song <Baohua.Song@csr.com> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Dmitry Osipenko 提交于
Lock scenario: Channel 1 was allocated and prepared as slave_sg, used and freed. Now preparation of cyclic dma on channel 1 will fail with err "DMA configuration conflict" because tdc->isr_handler still setted to handle_once_dma_done. This happens because tegra_dma_abort_all() won't be called on channel freeing if pending list is empty and channel not busy. We need to clear isr_handler on channel freeing to avoid locking. Signed-off-by: NDmitry Osipenko <digetx@gmail.com> Acked-by: NStephen Warren <swarren@nvidia.com> Acked-by: NLaxman Dewangan <ldewangan@nvidia.com> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Dmitry Osipenko 提交于
Fixed err msg params order on irq request fail. Signed-off-by: NDmitry Osipenko <digetx@gmail.com> Acked-by: NStephen Warren <swarren@nvidia.com> Acked-by: NLaxman Dewangan <ldewangan@nvidia.com> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Denis Efremov 提交于
EXPORT_SYMBOL and inline directives are contradictory to each other. The patch fixes this inconsistency. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: NDenis Efremov <yefremov.denis@gmail.com> Acked-by: NViresh Kumar <viresh.kumar@linaro.org> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Jingoo Han 提交于
The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d063 (device-core: Ensure drvdata = NULL when no driver is bound). Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: NJingoo Han <jg1.han@samsung.com> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Jingoo Han 提交于
The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d063 (device-core: Ensure drvdata = NULL when no driver is bound). Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: NJingoo Han <jg1.han@samsung.com> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Fabio Estevam 提交于
Fix the following sparse warning: drivers/dma/mxs-dma.c:696:17: warning: symbol 'mxs_dma_xlate' was not declared. Should it be static? Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com> Acked-by: NShawn Guo <shawn.guo@linaro.org> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Jingoo Han 提交于
Use the wrapper functions for getting and setting the driver data using platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev, so we can directly pass a struct platform_device. Also, unnecessary dev_set_drvdata() is removed, because the driver core clears the driver data to NULL after device_release or on probe failure. Signed-off-by: NJingoo Han <jg1.han@samsung.com> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Elen Song 提交于
Add support for returning the residue for current transfer cookie by reading the transfered buffer size(BTSIZE) in CTRLA register. For a single buffer cookie, the descriptor length minus BTSIZE can get the residue. For a lli cookie, remain_desc will record remain descriptor length when last descriptor finish, the remain_desc minus BTSIZE can get the current residue. If the cookie has completed successfully, the residue will be zero. If the cookie is in progress, it will be the number of bytes yet to be transferred. If get residue error, the cookie will be turn into error status. Check dma fifo to see if data remain, let issue pending finish remain work if there is. Signed-off-by: NElen Song <elen.song@atmel.com> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Elen Song 提交于
In one dma transfer, the data transfer width can be configured and it is limited by source or destination peripheral width, tx_width will save the transfer width, but for memcpy, either source or destination transfer width is taken as tx_width. Signed-off-by: NElen Song <elen.song@atmel.com> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Nicolas Ferre 提交于
No modification in CFG register configuration, just rearrange bits directives to group logically and make it more readable. Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Nicolas Ferre 提交于
Peripheral handshaking identification numbers can be bigger than 15, so new fields have been created in the CFG register. Add macros to take this modification into account and use them in at_dma_xlate() function. Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Nicolas Ferre 提交于
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Markus Pargmann 提交于
imxdma->dev is used for dev_warn before it was set. Signed-off-by: NMarkus Pargmann <mpa@pengutronix.de> Reviewed-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NSascha Hauer <s.hauer@pengutronix.de> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Markus Pargmann 提交于
Adding devicetree support for imx-dma driver. Use driver name for function 'imx_dma_is_general_purpose' because the devicename for devicetree initialized devices is different. Signed-off-by: NMarkus Pargmann <mpa@pengutronix.de> Reviewed-by: NArnd Bergmann <arnd@arndb.de> Reviewed-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NSascha Hauer <s.hauer@pengutronix.de> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Ferruh Yigit 提交于
If probe() fails after cd->xfer_buf allocated, it will not freed. Added kfree(cd->xfer_buf) with and error label. Signed-off-by: NFerruh Yigit <fery@cypress.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 04 7月, 2013 6 次提交
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由 Benjamin Herrenschmidt 提交于
Commit: e38c0a1f of/address: Handle #address-cells > 2 specially broke real time clock access on Bimini, js2x, and similar powerpc machines using the "maple" platform. That code was indirectly relying on the old (broken) behaviour of the translation for the hypertransport to ISA bridge. This fixes it by treating hypertransport as a PCI bus Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: NRob Herring <rob.herring@calxeda.com> Signed-off-by: NGrant Likely <grant.likely@linaro.org>
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由 Przemo Firszt 提交于
Intuos4 WL is separately reporting power supply and battery charging status - now hid-wacom is using that information. Previously hid-wacom was wrongly treating "battery charging" bit as "power supply connected". Now it should report battery charging, battery discharging, battery full and power supply status. Intuos4 WL sends reports when is in use (obvious) and when unplugging power supply. If means that if the device is being charged, but it's not being used it will never report "battery full". The same problem happens after the device has been connected, but it's not in use - the battery/ac status will be incorrect. Currently there is no mechanism to ask the device to send a report containing battery/ac status. Signed-off-by: NPrzemo Firszt <przemo@firszt.eu> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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由 Andrew Duggan 提交于
The current i2c hid driver does not support sending HID output reports using the output register for devices which support receiving reports through this method. This patch determines which method to use to send output reports based on the value of wMaxOutputLength in the device's HID descriptor. Signed-off-by: NAndrew Duggan <aduggan@synaptics.com> Reviewed-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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由 NeilBrown 提交于
The recent comment: commit 7e83ccbe md/raid10: Allow skipping recovery when clean arrays are assembled Causes raid10 to skip a recovery in certain cases where it is safe to do so. Unfortunately it also causes a reshape to be skipped which is never safe. The result is that an attempt to reshape a RAID10 will appear to complete instantly, but no data will have been moves so the array will now contain garbage. (If nothing is written, you can recovery by simple performing the reverse reshape which will also complete instantly). Bug was introduced in 3.10, so this is suitable for 3.10-stable. Cc: stable@vger.kernel.org (3.10) Cc: Martin Wilck <mwilck@arcor.de> Signed-off-by: NNeilBrown <neilb@suse.de>
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由 NeilBrown 提交于
There is a bug in 'check_reshape' for raid5.c To checks that the new minimum number of devices is large enough (which is good), but it does so also after the reshape has started (bad). This is bad because - the calculation is now wrong as mddev->raid_disks has changed already, and - it is pointless because it is now too late to stop. So only perform that test when reshape has not been committed to. Signed-off-by: NNeilBrown <neilb@suse.de>
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由 Jean-Francois Dagenais 提交于
Power-up timing The DS2408 is sensitive to the power-on slew rate and can inadvertently power up with a test mode feature enabled. When this occurs, the P0 port does not respond to the Channel Access Write command. For most reliable operation, it is recommended to disable the test mode after every power-on reset using the Disable Test Mode sequence shown below. The 64-bit ROM code must be transmitted in the same bit sequence as with the Match ROM command, i.e., least significant bit first. This precaution is recommended in parasite power mode (VCC pin connected to GND) as well as with VCC power. Disable Test Mode: RST,PD,96h,<64-bit DS2408 ROM Code>,3Ch,RST,PD [akpm@linux-foundation.org: don't use kerenldoc token to introduce a non-kerneldoc comment, tweak whitespace] Signed-off-by: NJean-Francois Dagenais <jeff.dagenais@gmail.com> Cc: Evgeniy Polyakov <zbr@ioremap.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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