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2019-11-06dmaengine: xilinx_dma: Remove axidma multichannel mode supportRadhey Shyam Pandey1-147/+8
The AXI DMA multichannel support is deprecated in the IP and it is no longer actively supported. For multichannel support, refer to the AXI multichannel direct memory access IP product guide(PG228) and MCDMA driver. So inline with it remove axidma multichannel support from from the driver. Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Link: https://lore.kernel.org/r/1571763622-29281-5-git-send-email-radhey.shyam.pandey@xilinx.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-11-06dt-bindings: dmaengine: xilinx_dma: Add binding for Xilinx MCDMA IPRadhey Shyam Pandey1-4/+11
Add devicetree binding for Xilinx AXI Multichannel Direct Memory Access (AXI MCDMA) IP. The AXI MCDMA provides high-bandwidth direct memory access between memory and AXI4-Stream target peripherals. The AXI MCDMA core provides a scatter-gather interface with multiple channel support with independent configuration. Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/1571763622-29281-4-git-send-email-radhey.shyam.pandey@xilinx.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-11-06dt-bindings: dmaengine: xilinx_dma: Fix formatting and styleRadhey Shyam Pandey1-3/+5
Trivial formatting(keep compatible string one per line, caps change etc). It doesn't modify the content of the binding. Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/1571763622-29281-3-git-send-email-radhey.shyam.pandey@xilinx.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-11-06dt-bindings: dmaengine: xilinx_dma: Remove axidma multichannel supportRadhey Shyam Pandey1-3/+0
The AXI DMA multichannel support is deprecated in the IP and it is no longer actively supported. For multichannel support, refer to the AXI multichannel direct memory access IP product guide(PG228) and MCDMA driver(added in the subsequent commits). Inline with it remove axidma multichannel optional properties i.e xlnx,mcdma and dma-channels from the binding description. Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/1571763622-29281-2-git-send-email-radhey.shyam.pandey@xilinx.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-11-05dmaengine: ti: edma: Add support for handling reserved channelsPeter Ujfalusi1-6/+53
Like paRAM slots, channels could be used by other cores and in this case we need to make sure that the driver do not alter these channels. Handle the generic dma-channel-mask property to mark channels in a bitmap which can not be used by Linux and convert the legacy rsv_chans if it is provided by platform_data. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Link: https://lore.kernel.org/r/20191025073056.25450-4-peter.ujfalusi@ti.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-11-05dt-bindings: dma: ti-edma: Document dma-channel-mask for EDMAPeter Ujfalusi1-0/+8
Similarly to paRAM slots, channels can be used by other cores. The common dma-channel-mask property can be used for specifying the available channels. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20191025073056.25450-3-peter.ujfalusi@ti.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-11-05dt-bindings: dmaengine: dma-common: Change dma-channel-mask to uint32-arrayPeter Ujfalusi1-1/+8
Make the dma-channel-mask to be usable for controllers with more than 32 channels. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20191025073056.25450-2-peter.ujfalusi@ti.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-11-02dmaengine: fsl-dpaa2-qdma: Remove unnecessary local variables in ↵Nathan Chancellor1-3/+1
DPDMAI_CMD_CREATE macro Clang warns: drivers/dma/fsl-dpaa2-qdma/dpdmai.c:148:25: warning: variable 'cfg' is uninitialized when used within its own initialization [-Wuninitialized] DPDMAI_CMD_CREATE(cmd, cfg); ~~~~~~~~~~~~~~~~~~~~~~~^~~~ drivers/dma/fsl-dpaa2-qdma/dpdmai.c:42:24: note: expanded from macro 'DPDMAI_CMD_CREATE' typeof(_cfg) (cfg) = (_cfg); \ ~~~ ^~~~ 1 warning generated. Looking at the preprocessed source, we can see that this is true. int dpdmai_create(struct fsl_mc_io *mc_io, u32 cmd_flags, const struct dpdmai_cfg *cfg, u16 *token) { struct fsl_mc_command cmd = { 0 }; int err; cmd.header = mc_encode_cmd_header((((0x90E) << 4) | 0), cmd_flags, 0); do { typeof(cmd)(cmd) = (cmd); typeof(cfg)(cfg) = (cfg); ((cmd).params[0] |= mc_enc((8), (8), (cfg)->priorities[0])); ((cmd).params[0] |= mc_enc((16), (8), (cfg)->priorities[1])); } while (0); I cannot see a good reason to create another version of cfg when the parameter one will work perfectly fine and cmd can just be used as is. Remove them to fix this warning. Fixes: f2835adf8afb ("dmaengine: fsl-dpaa2-qdma: Add the DPDMAI(Data Path DMA Interface) support") Link: https://github.com/ClangBuiltLinux/linux/issues/746 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Link: https://lore.kernel.org/r/20191022171648.37732-1-natechancellor@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-11-02dmaengine: fsl-qdma: Handle invalid qdma-queue0 IRQKrzysztof Kozlowski1-0/+3
platform_get_irq_byname() might return -errno which later would be cast to an unsigned int and used in IRQ handling code leading to usage of wrong ID and errors about wrong irq_base. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Peng Ma <peng.ma@nxp.com> Tested-by: Peng Ma <peng.ma@nxp.com> Link: https://lore.kernel.org/r/20191004150826.6656-1-krzk@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-23dmaengine: fsl-dpaa2-qdma: export the symbolsPeng Ma1-0/+12
The symbols were not exported leading to error: WARNING: modpost: missing MODULE_LICENSE() in drivers/dma/fsl-dpaa2-qdma/dpdmai.o see include/linux/module.h for more information GZIP arch/arm64/boot/Image.gz ERROR: "dpdmai_enable" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined! ERROR: "dpdmai_set_rx_queue" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined! ERROR: "dpdmai_get_tx_queue" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined! ERROR: "dpdmai_get_rx_queue" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined! ERROR: "dpdmai_get_attributes" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined! ERROR: "dpdmai_open" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined! ERROR: "dpdmai_close" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined! ERROR: "dpdmai_disable" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined! ERROR: "dpdmai_reset" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined! WARNING: "HYPERVISOR_platform_op" [vmlinux] is a static EXPORT_SYMBOL_GPL make[2]: *** [__modpost] Error 1 make[1]: *** [modules] Error 2 make[1]: *** Waiting for unfinished jobs.... make: *** [sub-make] Error 2 So export it. Signed-off-by: Peng Ma <peng.ma@nxp.com> Reported-by: Anders Roxell <anders.roxell@linaro.org> Link: https://lore.kernel.org/r/20191023045617.22764-1-peng.ma@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-20dmaengine: xilinx_dma: Clear desc_pendingcount in xilinx_dma_resetNicholas Graumann1-0/+1
Whenever we reset the channel, we need to clear desc_pendingcount along with desc_submitcount. Otherwise when a new transaction is submitted, the irq coalesce level could be programmed to an incorrect value in the axidma case. This behavior can be observed when terminating pending transactions with xilinx_dma_terminate_all() and then submitting new transactions without releasing and requesting the channel. Signed-off-by: Nicholas Graumann <nick.graumann@gmail.com> Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Link: https://lore.kernel.org/r/1571150904-3988-8-git-send-email-radhey.shyam.pandey@xilinx.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-20dmaengine: xilinx_dma: Print debug message when no free tx segmentsNicholas Graumann1-0/+3
The driver should not run out of tx segments in normal operation. But, if the user attempts to prepare a transaction with a large sg list, the driver may not have enough free segments to accommodate the request. Log a message at the debug level to inform the user in case they are experiencing issues. Signed-off-by: Nicholas Graumann <nick.graumann@gmail.com> Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Link: https://lore.kernel.org/r/1571150904-3988-7-git-send-email-radhey.shyam.pandey@xilinx.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-20dmaengine: xilinx_dma: Add callback_result supportNicholas Graumann1-1/+25
Take advantage of dmaengine_desc_get_callback_invoke which allows either a callback or callback_result to be specified. This can be useful when using the AXI DMA transfer unknown quantities of data where the residue contained in the result can be used to calculate the number of bytes transferred. Signed-off-by: Nicholas Graumann <nick.graumann@gmail.com> Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Link: https://lore.kernel.org/r/1571150904-3988-6-git-send-email-radhey.shyam.pandey@xilinx.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-20dmaengine: xilinx_dma: Introduce xilinx_dma_get_residueNicholas Graumann1-17/+54
Introduce a function that can calculate residues for IPs that support it: AXI DMA and CDMA. Signed-off-by: Nicholas Graumann <nick.graumann@gmail.com> Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Link: https://lore.kernel.org/r/1571150904-3988-5-git-send-email-radhey.shyam.pandey@xilinx.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-20dmaengine: xilinx_dma: Remove residue from channel dataRadhey Shyam Pandey1-4/+1
There is no use of storing channel data residue field. So clean it up. In tx_status simply pass calculated residue to dma_set_residue. Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Link: https://lore.kernel.org/r/1571150904-3988-4-git-send-email-radhey.shyam.pandey@xilinx.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-20dmaengine: xilinx_dma: Merge get_callback and _invokeNicholas Graumann1-4/+1
The dma api provides a single interface to get the appropriate callback and invoke it directly. Prefer using it. Signed-off-by: Nicholas Graumann <nick.graumann@gmail.com> Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Link: https://lore.kernel.org/r/1571150904-3988-3-git-send-email-radhey.shyam.pandey@xilinx.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-20dmaengine: xilinx_dma: Remove desc_callback_valid checkRadhey Shyam Pandey1-5/+3
In descriptor cleanup the call to desc_callback_valid can be safely removed as both callback pointers i.e callback_result and callback are anyway checked in invoke(). There is no much benefit in having redundant checks. Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Signed-off-by: Nicholas Graumann <nick.graumann@gmail.com> Reviewed-by: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com> Link: https://lore.kernel.org/r/1571150904-3988-2-git-send-email-radhey.shyam.pandey@xilinx.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-18dmaengine: milbeaut-xdmac: Add XDMAC driver for Milbeaut platformsJassi Brar3-0/+429
Driver for Socionext Milbeaut XDMAC controller. The controller only supports Mem-To-Mem transfers over upto 8 configurable channels. Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> Link: https://lore.kernel.org/r/20191015033219.14713-1-jassisinghbrar@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-18dt-bindings: milbeaut-m10v-xdmac: Add Socionext Milbeaut XDMAC bindingsJassi Brar1-0/+24
Document the devicetree bindings for Socionext Milbeaut XDMAC controller. Controller only supports Mem->Mem transfers. Number of physical channels are determined by the number of irqs registered. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> Link: https://lore.kernel.org/r/20191015033157.14656-1-jassisinghbrar@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-18dmaengine: milbeaut-hdmac: Add HDMAC driver for Milbeaut platformsJassi Brar3-0/+592
Driver for Socionext Milbeaut HDMAC controller. The controller has upto 8 floating channels, that need a predefined slave-id to work from a set of slaves. Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> Link: https://lore.kernel.org/r/20191015033359.14925-1-jassisinghbrar@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-18dt-bindings: milbeaut-m10v-hdmac: Add Socionext Milbeaut HDMAC bindingsJassi Brar1-0/+32
Document the devicetree bindings for Socionext Milbeaut HDMAC controller. Controller has upto 8 floating channels, that need a predefined slave-id to work from a set of slaves. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> Link: https://lore.kernel.org/r/20191015033350.14866-1-jassisinghbrar@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-17dmaengine: fsl-dpaa2-qdma: Add NXP dpaa2 qDMA controller driver for ↵Peng Ma6-0/+993
Layerscape SoCs DPPA2(Data Path Acceleration Architecture 2) qDMA supports virtualized channel by allowing DMA jobs to be enqueued into different work queues. Core can initiate a DMA transaction by preparing a frame descriptor(FD) for each DMA job and enqueuing this job through a hardware portal. DPAA2 components can also prepare a FD and enqueue a DMA job through a hardware portal. The qDMA prefetches DMA jobs through DPAA2 hardware portal. It then schedules and dispatches to internal DMA hardware engines, which generate read and write requests. Both qDMA source data and destination data can be either contiguous or non-contiguous using one or more scatter/gather tables. The qDMA supports global bandwidth flow control where all DMA transactions are stalled if the bandwidth threshold has been reached. Also supported are transaction based read throttling. Add NXP dppa2 qDMA to support some of Layerscape SoCs. such as: LS1088A, LS208xA, LX2, etc. Signed-off-by: Peng Ma <peng.ma@nxp.com> Link: https://lore.kernel.org/r/20190930020440.7754-2-peng.ma@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-17dmaengine: fsl-dpaa2-qdma: Add the DPDMAI(Data Path DMA Interface) supportPeng Ma2-0/+543
The MC(Management Complex) exports the DPDMAI(Data Path DMA Interface) object as an interface to operate the DPAA2(Data Path Acceleration Architecture 2) qDMA Engine. The DPDMAI enables sending frame-based requests to qDMA and receiving back confirmation response on transaction completion, utilizing the DPAA2 QBMan(Queue Manager and Buffer Manager hardware) infrastructure. DPDMAI object provides up to two priorities for processing qDMA requests. The following list summarizes the DPDMAI main features and capabilities: 1. Supports up to two scheduling priorities for processing service requests. - Each DPDMAI transmit queue is mapped to one of two service priorities, allowing further prioritization in hardware between requests from different DPDMAI objects. 2. Supports up to two receive queues for incoming transaction completion confirmations. - Each DPDMAI receive queue is mapped to one of two receive priorities, allowing further prioritization between other interfaces when associating the DPDMAI receive queues to DPIO or DPCON(Data Path Concentrator) objects. 3. Supports different scheduling options for processing received packets: - Queues can be configured either in 'parked' mode (default), or attached to a DPIO object, or attached to DPCON object. 4. Allows interaction with one or more DPIO objects for dequeueing/enqueueing frame descriptors(FD) and for acquiring/releasing buffers. 5. Supports enable, disable, and reset operations. Add dpdmai to support some platforms with dpaa2 qdma engine. Signed-off-by: Peng Ma <peng.ma@nxp.com> Link: https://lore.kernel.org/r/20190930020440.7754-1-peng.ma@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-15dt-bindings: dmaengine: rcar-dmac: Document R8A774B1 bindingsBiju Das1-0/+1
Renesas RZ/G2N (R8A774B1) SoC also has the R-Car gen2/3 compatible DMA controllers, therefore document RZ/G2N specific bindings. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/1569580629-55677-1-git-send-email-biju.das@bp.renesas.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-15dmaengine: sprd: Change to use devm_platform_ioremap_resource()Baolin Wang1-3/+1
Use the new helper that wraps the calls to platform_get_resource() and devm_ioremap_resource() together, which can simpify the code. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Link: https://lore.kernel.org/r/1af3efdac3b217203cace090c8947386854c0144.1569554639.git.baolin.wang@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-15dmaengine: xilinx_dma: Remove clk_get error message for probe deferRadhey Shyam Pandey1-5/+14
In dma probe, the driver checks for devm_clk_get return and print error message in the failing case. However for -EPROBE_DEFER this message is confusing so avoid it. Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/1569495060-18117-5-git-send-email-radhey.shyam.pandey@xilinx.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-15dmaengine: xilinx_dma: use devm_platform_ioremap_resource()Radhey Shyam Pandey1-3/+1
Replace the chain of platform_get_resource() and devm_ioremap_resource() with devm_platform_ioremap_resource(). It simplifies the flow and there is no functional change. Fixes below cocinelle warning- WARNING: Use devm_platform_ioremap_resource for xdev -> regs Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Link: https://lore.kernel.org/r/1569495060-18117-4-git-send-email-radhey.shyam.pandey@xilinx.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-14dmaengine: iop-adma: make array 'handler' static const, makes object smallerColin Ian King1-3/+5
Don't populate the array 'handler' on the stack but instead make it static const. Makes the object code smaller by 80 bytes. Before: text data bss dec hex filename 38225 9084 64 47373 b90d drivers/dma/iop-adma.o After: text data bss dec hex filename 38081 9148 64 47293 b8bd drivers/dma/iop-adma.o (gcc version 9.2.1, amd64) Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20190905163726.19690-1-colin.king@canonical.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-14dmaengine: dw: platform: Mark 'hclk' clock optionalAndy Shevchenko1-1/+1
On some platforms the clock can be fixed rate, always running one and there is no need to do anything with it. In order to support those platforms, switch to use optional clock. Fixes: f8d9ddbc2851 ("dmaengine: dw: platform: Enable iDMA 32-bit on Intel Elkhart Lake") Depends-on: 60b8f0ddf1a9 ("clk: Add (devm_)clk_get_optional() functions") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Link: https://lore.kernel.org/r/20190924085116.83683-1-andriy.shevchenko@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-14dmaengine: zx: Use devm_platform_ioremap_resource() in zx_dma_probe()Markus Elfring1-6/+1
Simplify this function implementation by using a known wrapper function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Acked-by: Shawn Guo <shawnguo@kernel.org> Link: https://lore.kernel.org/r/85de79fa-1ca5-a1e5-0296-9e8a2066f134@web.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-14dmaengine: owl: Use devm_platform_ioremap_resource() in owl_dma_probe()Markus Elfring1-6/+1
Simplify this function implementation by using a known wrapper function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Link: https://lore.kernel.org/r/d36b6a6c-2e3d-8d68-6ddc-969a377ca3b2@web.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-14dmaengine: mediatek: Use devm_platform_ioremap_resource() in ↵Markus Elfring1-8/+1
mtk_uart_apdma_probe() Simplify this function implementation by using a known wrapper function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Link: https://lore.kernel.org/r/366e776c-8760-eeb7-c248-7380c9f4fd34@web.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-14dmaengine: mediatek: Use devm_platform_ioremap_resource() in mtk_cqdma_probe()Markus Elfring1-9/+1
Simplify this function implementation a bit by using a known wrapper function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Link: https://lore.kernel.org/r/c7e3bbae-44fa-9019-18ee-c6cdfd7c2a14@web.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-14dmaengine: k3dma: Use devm_platform_ioremap_resource() in k3_dma_probe()Markus Elfring1-6/+1
Simplify this function implementation by using a known wrapper function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Link: https://lore.kernel.org/r/aaed7862-49bb-e368-3e7b-5cc2c3d915b1@web.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-14dmaengine: jz4780: Use devm_platform_ioremap_resource() in jz4780_dma_probe()Markus Elfring1-7/+1
Simplify this function implementation a bit by using a known wrapper function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Link: https://lore.kernel.org/r/5dd19f28-349a-4957-ea3a-6aebbd7c97e2@web.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-14dmaengine: at_xdmac: Use devm_platform_ioremap_resource() in at_xdmac_probe()Markus Elfring1-6/+1
Simplify this function implementation by using a known wrapper function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com> Link: https://lore.kernel.org/r/377247f3-b53a-a9d9-66c7-4b8515de3809@web.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-14dmaengine: rcar-dmac: Add dma-channel-mask property supportYoshihiro Shimoda1-1/+9
This patch adds dma-channel-mask property support not to reserve some DMA channels for some reasons. (for example: a heterogeneous CPU uses it.) Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/1568010892-17606-5-git-send-email-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-14dmaengine: rcar-dmac: Use devm_platform_ioremap_resource()Yoshihiro Shimoda1-3/+1
This patch uses devm_platform_ioremap_resource() instead of using platform_get_resource() and devm_ioremap_resource() together to simplify. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Link: https://lore.kernel.org/r/1568010892-17606-4-git-send-email-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-14dmaengine: rcar-dmac: Use of_data values instead of a macroYoshihiro Shimoda1-5/+28
Since we will have changed memory mapping of the DMAC in the future, this patch uses of_data values instead of a macro to calculate each channel's base offset. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Link: https://lore.kernel.org/r/1568010892-17606-3-git-send-email-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-11dmaengine: ti: edma: remove unused codeYueHaibing1-11/+1
drivers/dma/ti/edma.c: In function edma_probe: drivers/dma/ti/edma.c:2252:11: warning: variable off set but not used [-Wunused-but-set-variable] 'off' is not used now, so remove it. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Link: https://lore.kernel.org/r/20190905060249.23928-1-yuehaibing@huawei.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-11dmaengine: uniphier-mdmac: use devm_platform_ioremap_resource()Masahiro Yamada1-3/+1
Replace the chain of platform_get_resource() and devm_ioremap_resource() with devm_platform_ioremap_resource(). This allows to remove the local variable for (struct resource *), and have one function call less. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Link: https://lore.kernel.org/r/20190905034133.29514-1-yamada.masahiro@socionext.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-09-30Linux 5.4-rc1v5.4-rc1Linus Torvalds1-2/+2
2019-09-30Merge tag 'for-5.4-rc1-tag' of ↵Linus Torvalds5-18/+58
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux Pull btrfs fixes from David Sterba: "A bunch of fixes that accumulated in recent weeks, mostly material for stable. Summary: - fix for regression from 5.3 that prevents to use balance convert with single profile - qgroup fixes: rescan race, accounting leak with multiple writers, potential leak after io failure recovery - fix for use after free in relocation (reported by KASAN) - other error handling fixups" * tag 'for-5.4-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: qgroup: Fix reserved data space leak if we have multiple reserve calls btrfs: qgroup: Fix the wrong target io_tree when freeing reserved data space btrfs: Fix a regression which we can't convert to SINGLE profile btrfs: relocation: fix use-after-free on dead relocation roots Btrfs: fix race setting up and completing qgroup rescan workers Btrfs: fix missing error return if writeback for extent buffer never started btrfs: adjust dirty_metadata_bytes after writeback failure of extent buffer Btrfs: fix selftests failure due to uninitialized i_mode in test inodes
2019-09-30Merge tag 'csky-for-linus-5.4-rc1' of git://github.com/c-sky/csky-linuxLinus Torvalds17-212/+291
Pull csky updates from Guo Ren: "This round of csky subsystem just some fixups: - Fix mb() synchronization problem - Fix dma_alloc_coherent with PAGE_SO attribute - Fix cache_op failed when cross memory ZONEs - Optimize arch_sync_dma_for_cpu/device with dma_inv_range - Fix ioremap function losing - Fix arch_get_unmapped_area() implementation - Fix defer cache flush for 610 - Support kernel non-aligned access - Fix 610 vipt cache flush mechanism - Fix add zero_fp fixup perf backtrace panic - Move static keyword to the front of declaration - Fix csky_pmu.max_period assignment - Use generic free_initrd_mem() - entry: Remove unneeded need_resched() loop" * tag 'csky-for-linus-5.4-rc1' of git://github.com/c-sky/csky-linux: csky: Move static keyword to the front of declaration csky: entry: Remove unneeded need_resched() loop csky: Fixup csky_pmu.max_period assignment csky: Fixup add zero_fp fixup perf backtrace panic csky: Use generic free_initrd_mem() csky: Fixup 610 vipt cache flush mechanism csky: Support kernel non-aligned access csky: Fixup defer cache flush for 610 csky: Fixup arch_get_unmapped_area() implementation csky: Fixup ioremap function losing csky: Optimize arch_sync_dma_for_cpu/device with dma_inv_range csky/dma: Fixup cache_op failed when cross memory ZONEs csky: Fixup dma_alloc_coherent with PAGE_SO attribute csky: Fixup mb() synchronization problem
2019-09-30Merge tag 'armsoc-fixes' of ↵Linus Torvalds9-81/+66
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC fixes from Olof Johansson: "A few fixes that have trickled in through the merge window: - Video fixes for OMAP due to panel-dpi driver removal - Clock fixes for OMAP that broke no-idle quirks + nfsroot on DRA7 - Fixing arch version on ASpeed ast2500 - Two fixes for reset handling on ARM SCMI" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: ARM: aspeed: ast2500 is ARMv6K reset: reset-scmi: add missing handle initialisation firmware: arm_scmi: reset: fix reset_state assignment in scmi_domain_reset bus: ti-sysc: Remove unpaired sysc_clkdm_deny_idle() ARM: dts: logicpd-som-lv: Fix i2c2 and i2c3 Pin mux ARM: dts: am3517-evm: Fix missing video ARM: dts: logicpd-torpedo-baseboard: Fix missing video ARM: omap2plus_defconfig: Fix missing video bus: ti-sysc: Fix handling of invalid clocks bus: ti-sysc: Fix clock handling for no-idle quirks
2019-09-30Merge tag 'trace-v5.4-3' of ↵Linus Torvalds5-11/+30
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: "A few more tracing fixes: - Fix a buffer overflow by checking nr_args correctly in probes - Fix a warning that is reported by clang - Fix a possible memory leak in error path of filter processing - Fix the selftest that checks for failures, but wasn't failing - Minor clean up on call site output of a memory trace event" * tag 'trace-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: selftests/ftrace: Fix same probe error test mm, tracing: Print symbol name for call_site in trace events tracing: Have error path in predicate_parse() free its allocated memory tracing: Fix clang -Wint-in-bool-context warnings in IF_ASSIGN macro tracing/probe: Fix to check the difference of nr_args before adding probe
2019-09-30Merge tag 'mmc-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmcLinus Torvalds9-35/+410
Pull more MMC updates from Ulf Hansson: "A couple more updates/fixes for MMC: - sdhci-pci: Add Genesys Logic GL975x support - sdhci-tegra: Recover loss in throughput for DMA - sdhci-of-esdhc: Fix DMA bug" * tag 'mmc-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: host: sdhci-pci: Add Genesys Logic GL975x support mmc: tegra: Implement ->set_dma_mask() mmc: sdhci: Let drivers define their DMA mask mmc: sdhci-of-esdhc: set DMA snooping based on DMA coherence mmc: sdhci: improve ADMA error reporting
2019-09-30csky: Move static keyword to the front of declarationKrzysztof Wilczynski1-1/+1
Move the static keyword to the front of declaration of csky_pmu_of_device_ids, and resolve the following compiler warning that can be seen when building with warnings enabled (W=1): arch/csky/kernel/perf_event.c:1340:1: warning: ‘static’ is not at beginning of declaration [-Wold-style-declaration] Signed-off-by: Krzysztof Wilczynski <kw@linux.com> Signed-off-by: Guo Ren <guoren@kernel.org>
2019-09-30csky: entry: Remove unneeded need_resched() loopValentin Schneider1-4/+0
Since the enabling and disabling of IRQs within preempt_schedule_irq() is contained in a need_resched() loop, we don't need the outer arch code loop. Signed-off-by: Valentin Schneider <valentin.schneider@arm.com> Signed-off-by: Guo Ren <guoren@kernel.org>
2019-09-29Merge tag 'char-misc-5.4-rc1' of ↵Linus Torvalds1-8/+34
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull Documentation/process update from Greg KH: "Here are two small Documentation/process/embargoed-hardware-issues.rst file updates that missed my previous char/misc pull request. The first one adds an Intel representative for the process, and the second one cleans up the text a bit more when it comes to how the disclosure rules work, as it was a bit confusing to some companies" * tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: Documentation/process: Clarify disclosure rules Documentation/process: Volunteer as the ambassador for Intel
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