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| * | pl080.h: moved from arm/include/asm/hardware to include/linux/amba/Alessandro Rubini2013-01-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The header is used by drivers/dma/amba-pl08x.c, which can be compiled under x86, where PL080 exists under a PCI-to-AMBA bridge. This patche moves it where it can be accessed by other architectures, and fixes all users. Signed-off-by: Alessandro Rubini <rubini@gnudd.com> Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dma: dw_dmac: clear suspend bit during terminationHeikki Krogerus2013-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The DMA transfer could not be established if previously it was paused and terminated. In that case the channel's suspend bit remains set that prevents to transfer anything until channel is resumed. The patch adds the dwc_chan_resume() call instead of a plain flag assignment. That clears the DWC_CFGL_CH_SUSP bit as well during termination. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dw_dmac: backlink to dw_dma in dw_dma_chan is superfluousAndy Shevchenko2013-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | The same information could be extracted from the struct dma_chan. The patch introduces helper function dwc_get_data_width() as well. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dw_dmac: make usage of dw_dma_slave optionalAndy Shevchenko2013-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver requires a custom slave configuration to be present to be able to make the slave transfers. Nevertheless, in some cases we need only the request line as an additional information to the generic slave configuration. The request line is provided by slave_id parameter of the dma_slave_config structure. That's why the custom slave configuration could be optional for such cases. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dw_dmac: store direction in the custom channel structureAndy Shevchenko2013-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the direction value comes from the generic slave configuration structure and explicitly as a preparation function parameter. The first one is kinda obsoleted. Thus, we have to store the value passed to the preparation function somewhere in our structures to be able to use it later. The best candidate to provide the storage is a custom channel structure. Until now we still keep and check the direction field of the slave config structure as well. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dw_dmac: call .probe after we have a device in placeAndy Shevchenko2013-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we don't yet have the platform device for the driver when it is being loaded we fail to probe the driver. So instead of calling probe() directly we call platform_driver_register(). It will call the probe() immediately if we have the device but also makes the driver to work on platforms where the platform device is created later. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dma: ste_dma40: reuse is_slave_direction helperAndy Shevchenko2013-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | The is_slave_direction helps to check if the transfer type is slave. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dma: ipu_idmac: reuse is_slave_direction helperAndy Shevchenko2013-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | The is_slave_direction helps to check if the transfer type is slave. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dma: ep93xx_dma: reuse is_slave_direction helperAndy Shevchenko2013-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | The is_slave_direction helps to check if the transfer type is slave. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dma: dw_dmac: check direction properly in dw_dma_cyclic_prepAndy Shevchenko2013-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dma_transfer_direction is a normal enum. It means we can't usually use the values as bit fields. Let's adjust this check and move it above the usage of the direction parameter, due to the nature of the following usage of it. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dma: at_hdmac: check direction properly for cyclic transfersAndy Shevchenko2013-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dma_transfer_direction is a normal enum. It means we can't usually use the values as bit fields. Let's adjust this check and move it above the usage of the direction parameter, due to the nature of the following usage of it. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dma: dw_dmac: add dwc_chan_pause and dwc_chan_resumeAndy Shevchenko2013-01-09
| | | | | | | | | | | | | | | | | | | | | | | | We will use at least the dwc_chan_resume() later. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dw_dmac: update tx_node_active in dwc_do_single_blockAndy Shevchenko2013-01-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | The "else" keyword in the dw_dma_tasklet is removed as well. All together simplifies the logic of the code and understanding of what is happening there. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dw_dmac: remove redundant checkAndy Shevchenko2013-01-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | There is no need to check the callback_required parameter, due to we check the callback pointer to be a non-NULL. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dw_dmac: check for mapping errorsAndy Shevchenko2013-01-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Otherwise we get a warning in case of CONFIG_DMA_API_DEBUG=y [ 45.775943] WARNING: at lib/dma-debug.c:933 check_unmap+0x5d6/0x6ac() [ 45.782369] dw_dmac dw_dmac.0: DMA-API: device driver failed to check map error[device address=0x00000000356efcc0] [size=28 bytes] [mapped as single] Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dw_dmac: absence of pdata isn't critical when autocfg is setAndy Shevchenko2013-01-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch allows to probe the device when platform data is absent and hardware auto configuration is enabled. In that case the default platform data is used where the channel allocation order is set to ascending, channel priority is set to ascending, and private property is set to true. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dma: mxs-dma: Fix build warnings with W=1Fabio Estevam2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the following warnings when building with W=1 option: drivers/dma/mxs-dma.c: In function 'mxs_dma_alloc_chan_resources': drivers/dma/mxs-dma.c:368:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] drivers/dma/mxs-dma.c: In function 'mxs_dma_prep_slave_sg': drivers/dma/mxs-dma.c:481:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] drivers/dma/mxs-dma.c:494:3: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] drivers/dma/mxs-dma.c:515:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] drivers/dma/mxs-dma.c: In function 'mxs_dma_prep_dma_cyclic': drivers/dma/mxs-dma.c:563:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dma: tegra: add support for Tegra114 SoCLaxman Dewangan2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NVIDIA's Tegra114 has APB DMA controller which has 32 dma channels and support support channel wise pause control. Add support for Tegra114 which uses the channel wise pause control hardware feature. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dma: tegra: add support for channel wise pauseLaxman Dewangan2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NVIDIA's some SoCs like Tegra114 support the channel wise pause control inplace of global pause which pauses all DMA channels. When SoCs support the channel wise pause control then it uses the global pause for clock gating for register access as well as all DMA channel pause. Hence DMA registers are not accessible if DMAs are globally paused on these new SoCs. Add support for channel wise pause feature if SoCs support it. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dma: ipu: Drop unused spinlockJean Delvare2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | I was checking why this spinlock was never initialized, but it turns out it's not used anywhere, so we can drop it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Dan Williams <djbw@fb.com>
| * | ioat: remove chanerr mask setting for IOAT v3.xDave Jiang2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The existing code set a value in the PCI_CHANERRMSK_INT register for a workaround to address a pre-silicon bug on the Intel 5520 IO hub that has been fixed when the hardware was released. There is no need for this code. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Dan Williams <djbw@fb.com>
| * | ioat: Add alignment workaround for IVB platformsDave Jiang2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | The PCI IDs for IvyBridge IOAT DMA needs to go into a header file since dma_v3.c looks them up for certain hardware workarounds. Need to add to the alignment workaround for IOAT 3.2 since it wasn't fixed in IVB. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Dan Williams <djbw@fb.com>
| * | dmaengine: add cpu_relax() to busy-loop in dma_sync_wait()Bartlomiej Zolnierkiewicz2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Removal of the busy-loop from dma_sync_wait() is not a trivial task so just add cpu_relax() to the loop for now. Cc: Vinod Koul <vinod.koul@intel.com> Cc: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Dan Williams <djbw@fb.com>
| * | ioat3: add missing DMA unmap to ioat_xor_val_self_test()Bartlomiej Zolnierkiewicz2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make ioat_xor_val_self_test() do DMA unmapping itself and fix handling of failure cases. Cc: Dan Williams <djbw@fb.com> Cc: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Dan Williams <djbw@fb.com>
| * | dmaengine/dmatest: terminate transfers only in case of errorsShiraz Hashim2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dmatest erroneously terminated transfers in normal cases also leading to test failures for multiple threads over a channel. Fix this and terminate transfers only in case of errors. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * | dma: sh: Don't use ENODEV for failing slave lookupGuennadi Liakhovetski2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If dmaengine driver's .device_alloc_chan_resources() method returns -ENODEV, dma_request_channel() will decide, that the driver has been removed and will remove the device from its list. To prevent this use ENXIO if a slave lookup fails. Reported-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: stable@vger.kernel.org Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * | dmatest: Fix NULL pointer dereference on ioatJon Mason2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | device_control is an optional and not implemented in all DMA drivers. Any calls to these will result in a NULL pointer dereference. dmatest makes two of these calls when completing the kernel thread and removing the module. These are corrected by calling the dmaengine_device_control wrapper and checking for a non-existant device_control function pointer there. Signed-off-by: Jon Mason <jon.mason@intel.com> CC: Vinod Koul <vinod.koul@intel.com> CC: Dan Williams <djbw@fb.com> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * | DMA: PL330: Use devm_* functionsSachin Kamat2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | devm_* functions are device managed and make the code and error handling a bit simpler. Cc: Jassi Brar <jassisinghbrar@gmail.com> Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * | dmaengine: sirf: enable the driver support new SiRFmarco SoCBarry Song2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver supports old up SiRFprimaII SoCs, this patch makes it support the new SiRFmarco as well. SiRFmarco, as a SMP SoC, adds new DMA_INT_EN_CLR and DMA_CH_LOOP_CTRL_CLR registers, to disable IRQ/Channel, we should write 1 to the corresponding bit in the two CLEAR register. Tested on SiRFmarco using SPI driver: $ /mnt/spidev-sirftest -D /dev/spidev32766.0 spi mode: 0 bits per word: 8 max speed: 500000 Hz (500 KHz) 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 $ cat /proc/interrupts CPU0 CPU1 32: 1593 0 GIC sirfsoc_timer0 33: 0 3533 GIC sirfsoc_timer1 44: 0 0 GIC sirfsoc_dma 45: 16 0 GIC sirfsoc_dma 47: 6 0 GIC sirfsoc_spi 50: 5654 0 GIC sirfsoc-uart ... Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * | ioat: add missing DMA unmap to ioat_dma_self_test()Bartlomiej Zolnierkiewicz2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make ioat_dma_self_test() do DMA unmapping itself and fix handling of failure cases. Cc: Dan Williams <djbw@fb.com> Cc: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Dan Williams <djbw@fb.com>
| * | dma: Convert dev_printk(KERN_<LEVEL> to dev_<level>(Joe Perches2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | dev_<level> calls take less code than dev_printk(KERN_<LEVEL> and reducing object size is good. Coalesce formats for easier grep. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * | dmatest: adjust invalid module parameters for number of source buffersAkinobu Mita2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DMA Engine test module has module parameters to set the number of source buffers for xor and pq operations. We can set these values larger than the maximum number of sources that the device can support. These values are not adjusted and the unsupported number of source buffers are passed to the device. But most drivers don't check it, so unexpected results will happen. This makes an appropriate adjustment for these module parameters before use. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <djbw@fb.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * | dma: amba-pl08x: use vchan_dma_desc_free_listAkinobu Mita2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | vchan_dma_desc_free_list() iterates through each virt_dma_desc in the specified list_head and calls vchan->desc_free(). We can use it instead of repeated execution of pl08x_desc_free() for each virt_dma_desc in the list_head. Because vchan->desc_free callback is set as pl08x_desc_free() for amba-pl08x driver. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <djbw@fb.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * | dw_dmac: introduce to_dw_desc() macroAndy Shevchenko2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The to_dw_desc() macro helps to retrieve the dw_desc node from the corresponding list_head structure. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * | dw_dmac: change dev_crit to dev_WARN in dwc_handle_errorAndy Shevchenko2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case of handling a bad descriptor the dwc_handle_error() will dump a stack as well. It's a lot more verbose and more likely to get user's attention. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * | dw_dmac: don't call platform_get_drvdata twiceAndy Shevchenko2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no need to call platform_get_drvdata twice as we have it already in dw variable. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * | dw_dmac: change dev_printk() to corresponding macrosAndy Shevchenko2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | Change printk(KERN_INFO ..., dev_name(...), ...) to dev_info() as well. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * | dmaengine: dw_dmac: amend description and indentationHeikki Krogerus2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver will be used as a core part for various implementations of the DesignWare DMA device. The patch adjusts description on the top and corrects paragraph indentation in few places across the code. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * | dmaengine: dw_dmac: remove CLK dependencyHeikki Krogerus2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver could be used on different platforms. Thus, the HAVE_CLK dependency is dropped away. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * | dmaengine: dw_dmac: Enhance device tree supportViresh Kumar2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dw_dmac driver already supports device tree but it used to have its platform data passed the non-DT way. This patch does following changes: - pass platform data via DT, non-DT way still takes precedence if both are used. - create generic filter routine - Earlier slave information was made available by slave specific filter routines in chan->private field. Now, this information would be passed from within dmac DT node. Slave drivers would now be required to pass bus_id (a string) as parameter to this generic filter(), which would be compared against the slave data passed from DT, by the generic filter routine. - Update binding document Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> [Fixed __devinit usage] Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * | pch_dma: use module_pci_driver to simplify the codeWei Yongjun2013-01-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the module_pci_driver() macro to make the code simpler by eliminating module_init and module_exit calls. dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * | drivers/dma: remove CONFIG_EXPERIMENTALKees Cook2013-01-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This config item has not carried much meaning for a while now and is almost always enabled by default. As agreed during the Linux kernel summit, remove it. CC: Vinod Koul <vinod.koul@intel.com> CC: Dan Williams <djbw@fb.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * | dmaengine: add helper function to request a slave DMA channelJon Hunter2013-01-06
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently slave DMA channels are requested by calling dma_request_channel() and requires DMA clients to pass various filter parameters to obtain the appropriate channel. With device-tree being used by architectures such as arm and the addition of device-tree helper functions to extract the relevant DMA client information from device-tree, add a new function to request a slave DMA channel using device-tree. This function is currently a simple wrapper that calls the device-tree of_dma_request_slave_channel() function. Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Russell King <linux@arm.linux.org.uk> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <djbw@fb.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jon Hunter <jon-hunter@ti.com> Reviewed-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
* | Merge branch 'next' of ↵Linus Torvalds2013-02-23
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc updates from Benjamin Herrenschmidt: "So from the depth of frozen Minnesota, here's the powerpc pull request for 3.9. It has a few interesting highlights, in addition to the usual bunch of bug fixes, minor updates, embedded device tree updates and new boards: - Hand tuned asm implementation of SHA1 (by Paulus & Michael Ellerman) - Support for Doorbell interrupts on Power8 (kind of fast thread-thread IPIs) by Ian Munsie - Long overdue cleanup of the way we handle relocation of our open firmware trampoline (prom_init.c) on 64-bit by Anton Blanchard - Support for saving/restoring & context switching the PPR (Processor Priority Register) on server processors that support it. This allows the kernel to preserve thread priorities established by userspace. By Haren Myneni. - DAWR (new watchpoint facility) support on Power8 by Michael Neuling - Ability to change the DSCR (Data Stream Control Register) which controls cache prefetching on a running process via ptrace by Alexey Kardashevskiy - Support for context switching the TAR register on Power8 (new branch target register meant to be used by some new specific userspace perf event interrupt facility which is yet to be enabled) by Ian Munsie. - Improve preservation of the CFAR register (which captures the origin of a branch) on various exception conditions by Paulus. - Move the Bestcomm DMA driver from arch powerpc to drivers/dma where it belongs by Philippe De Muyter - Support for Transactional Memory on Power8 by Michael Neuling (based on original work by Matt Evans). For those curious about the feature, the patch contains a pretty good description." (See commit db8ff907027b: "powerpc: Documentation for transactional memory on powerpc" for the mentioned description added to the file Documentation/powerpc/transactional_memory.txt) * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (140 commits) powerpc/kexec: Disable hard IRQ before kexec powerpc/85xx: l2sram - Add compatible string for BSC9131 platform powerpc/85xx: bsc9131 - Correct typo in SDHC device node powerpc/e500/qemu-e500: enable coreint powerpc/mpic: allow coreint to be determined by MPIC version powerpc/fsl_pci: Store the pci ctlr device ptr in the pci ctlr struct powerpc/85xx: Board support for ppa8548 powerpc/fsl: remove extraneous DIU platform functions arch/powerpc/platforms/85xx/p1022_ds.c: adjust duplicate test powerpc: Documentation for transactional memory on powerpc powerpc: Add transactional memory to pseries and ppc64 defconfigs powerpc: Add config option for transactional memory powerpc: Add transactional memory to POWER8 cpu features powerpc: Add new transactional memory state to the signal context powerpc: Hook in new transactional memory code powerpc: Routines for FP/VSX/VMX unavailable during a transaction powerpc: Add transactional memory unavaliable execption handler powerpc: Add reclaim and recheckpoint functions for context switching transactional memory processes powerpc: Add FP/VSX and VMX register load functions for transactional memory powerpc: Add helper functions for transactional memory context switching ...
| * \ Merge remote-tracking branch 'agust/next' into nextBenjamin Herrenschmidt2013-02-19
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | << Please pull mpc5xxx patches for v3.9. The bestcomm driver is moved to drivers/dma (so it will be usable for ColdFire). mpc5121 now provides common dtsi file and existing mpc5121 device trees use it. There are some minor clock init and sparse fixes and updates for various 5200 device tree files from Grant. Some fixes for bugs in the mpc5121 DIU driver are also included here (Andrew Morton suggested to push them via my mpc5xxx tree). >>
| | * | powerpc, dma: move bestcomm driver from arch/powerpc/sysdev to drivers/dmaPhilippe De Muyter2013-01-03
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bestcomm dma hardware, and some of its users like the FEC ethernet component, is used in different FreeScale parts, including non-powerpc parts like the ColdFire MCF547x & MCF548x families. Don't keep the driver hidden in arch/powerpc where it is inaccessible for other arches. .c files are moved to drivers/dma/bestcomm, while .h files are moved to include/linux/fsl/bestcomm. Makefiles, Kconfigs and #include directives are updated for the new file locations. Tested by recompiling for MPC5200 with all bestcomm users enabled. Signed-off-by: Philippe De Muyter <phdm@macqel.be> Signed-off-by: Anatolij Gustschin <agust@denx.de>
* | | Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2013-02-21
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM SoC-specific updates from Arnd Bergmann: "This is a larger set of new functionality for the existing SoC families, including: - vt8500 gains support for new CPU cores, notably the Cortex-A9 based wm8850 - prima2 gains support for the "marco" SoC family, its SMP based cousin - tegra gains support for the new Tegra4 (Tegra114) family - socfpga now supports a newer version of the hardware including SMP - i.mx31 and bcm2835 are now using DT probing for their clocks - lots of updates for sh-mobile - OMAP updates for clocks, power management and USB - i.mx6q and tegra now support cpuidle - kirkwood now supports PCIe hot plugging - tegra clock support is updated - tegra USB PHY probing gets implemented diffently" * tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (148 commits) ARM: prima2: remove duplicate v7_invalidate_l1 ARM: shmobile: r8a7779: Correct TMU clock support again ARM: prima2: fix __init section for cpu hotplug ARM: OMAP: Consolidate OMAP USB-HS platform data (part 3/3) ARM: OMAP: Consolidate OMAP USB-HS platform data (part 1/3) arm: socfpga: Add SMP support for actual socfpga harware arm: Add v7_invalidate_l1 to cache-v7.S arm: socfpga: Add entries to enable make dtbs socfpga arm: socfpga: Add new device tree source for actual socfpga HW ARM: tegra: sort Kconfig selects for Tegra114 ARM: tegra: enable ARCH_REQUIRE_GPIOLIB for Tegra114 ARM: tegra: Fix build error w/ ARCH_TEGRA_114_SOC w/o ARCH_TEGRA_3x_SOC ARM: tegra: Fix build error for gic update ARM: tegra: remove empty tegra_smp_init_cpus() ARM: shmobile: Register ARM architected timer ARM: MARCO: fix the build issue due to gic-vic-to-irqchip move ARM: shmobile: r8a7779: Correct TMU clock support ARM: mxs_defconfig: Select CONFIG_DEVTMPFS_MOUNT ARM: mxs: decrease mxs_clockevent_device.min_delta_ns to 2 clock cycles ARM: mxs: use apbx bus clock to drive the timers on timrotv2 ...
| * \ \ Merge tag 'tegra-for-3.9-soc-ccf' of ↵Olof Johansson2013-02-05
| |\ \ \ | | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/soc From Stephen Warren: ARM: tegra: Common Clock Framework rework Tegra already supports the common clock framework, but had issues: 1) The clock driver was located in arch/arm/mach-tegra/ rather than drivers/clk/. 2) A single "Tegra clock" type was implemented, rather than separate clock types for PLL, mux, divider, ... type in HW. 3) Clock lookups by device drivers were still driven by device name and connection ID, rather than through device tree. This pull request solves all three issues. This required some DT changes to add clocks properties, and driver changes to request clocks more "correctly". Finally, this rework allows all AUXDATA to be removed from Tegra board files, and various duplicate clock lookup entries to be removed from the driver. This pull request is based on the previous pull request, with tag tegra-for-3.9-cleanup. * tag 'tegra-for-3.9-soc-ccf' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: (31 commits) clk: tegra30: remove unused TEGRA_CLK_DUPLICATE()s clk: tegra20: remove unused TEGRA_CLK_DUPLICATE()s ARM: tegra30: remove auxdata ARM: tegra20: remove auxdata ASoC: tegra: remove auxdata staging: nvec: remove use of clk_get_sys ARM: tegra: paz00: add clock information to DT ARM: tegra: add clock properties to Tegra30 DT ARM: tegra: add clock properties to Tegra20 DT spi: tegra: do not use clock name to get clock ARM: tegra: remove legacy clock code ARM: tegra: migrate to new clock code clk: tegra: add clock support for Tegra30 clk: tegra: add clock support for Tegra20 clk: tegra: add Tegra specific clocks ARM: tegra: define Tegra30 CAR binding ARM: tegra: define Tegra20 CAR binding ARM: tegra: move tegra_cpu_car.h to linux/clk/tegra.h ARM: tegra: add function to read chipid ARM: tegra: fix compile error when disable CPU_IDLE ... Signed-off-by: Olof Johansson <olof@lixom.net> Conflicts: arch/arm/mach-tegra/board-dt-tegra20.c arch/arm/mach-tegra/board-dt-tegra30.c arch/arm/mach-tegra/common.c arch/arm/mach-tegra/platsmp.c drivers/clocksource/Makefile
| | * | ARM: tegra: migrate to new clock codePrashant Gaikwad2013-01-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Migrate Tegra clock support to drivers/clk/tegra, this involves moving: 1. definition of tegra_cpu_car_ops to clk.c 2. definition of reset functions to clk-peripheral.c 3. change parent of cpu clock. 4. Remove legacy clock initialization. 5. Initialize clocks using DT. 6. Remove all instance of mach/clk.h Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> [swarren: use to_clk_periph_gate().] Signed-off-by: Stephen Warren <swarren@nvidia.com>
* | | | Merge tag 'multiplatform' of ↵Linus Torvalds2013-02-21
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC multiplatform support from Arnd Bergmann: "Converting more ARM platforms to multiplatform support. This time, OMAP gets converted, which is a major step since this is by far the largest platform in terms of code size. The same thing happens to the vt8500 platform." * tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: net: cwdavinci_cpdma: export symbols for cpsw remoteproc: omap: depend on OMAP_MBOX_FWK [media] davinci: do not include mach/hardware.h ARM: OMAP2+: Make sure files with omap initcalls include soc.h ARM: OMAP2+: Include soc.h to drm.c to fix compiling ARM: OMAP2+: Fix warning for hwspinlock omap_postcore_initcall ARM: multi_v7_defconfig: add ARCH_ZYNQ ARM: multi_v7_defconfig: remove unnecessary CONFIG_GPIOLIB arm: vt8500: Remove remaining mach includes arm: vt8500: Convert debug-macro.S to be multiplatform friendly arm: vt8500: Remove single platform Kconfig options ARM: OMAP2+: Remove now obsolete uncompress.h and debug-macro.S ARM: OMAP2+: Add minimal support for booting vexpress ARM: OMAP2+: Enable ARCH_MULTIPLATFORM support ARM: OMAP2+: Disable code that currently does not work with multiplaform ARM: OMAP2+: Add multiplatform debug_ll support ARM: OMAP: Fix dmaengine init for multiplatform ARM: OMAP: Fix i2c cmdline initcall for multiplatform ARM: OMAP2+: Use omap initcalls ARM: OMAP2+: Limit omap initcalls to omap only on multiplatform kernels
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-07 07:22:12 -0400