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* Merge tag 'pci-v5.20-changes' of ↵Linus Torvalds2022-08-057-168/+158
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull pci updates from Bjorn Helgaas: "Enumeration: - Consolidate duplicated 'next function' scanning and extend to allow 'isolated functions' on s390, similar to existing hypervisors (Niklas Schnelle) Resource management: - Implement pci_iobar_pfn() for sparc, which allows us to remove the sparc-specific pci_mmap_page_range() and pci_mmap_resource_range(). This removes the ability to map the entire PCI I/O space using /proc/bus/pci, but we believe that's already been broken since v2.6.28 (Arnd Bergmann) - Move common PCI definitions to asm-generic/pci.h and rework others to be be more specific and more encapsulated in arches that need them (Stafford Horne) Power management: - Convert drivers to new *_PM_OPS macros to avoid need for '#ifdef CONFIG_PM_SLEEP' or '__maybe_unused' (Bjorn Helgaas) Virtualization: - Add ACS quirk for Broadcom BCM5750x multifunction NICs that isolate the functions but don't advertise an ACS capability (Pavan Chebbi) Error handling: - Clear PCI Status register during enumeration in case firmware left errors logged (Kai-Heng Feng) - When we have native control of AER, enable error reporting for all devices that support AER. Previously only a few drivers enabled this (Stefan Roese) - Keep AER error reporting enabled for switches. Previously we enabled this during enumeration but immediately disabled it (Stefan Roese) - Iterate over error counters instead of error strings to avoid printing junk in AER sysfs counters (Mohamed Khalfella) ASPM: - Remove pcie_aspm_pm_state_change() so ASPM config changes, e.g., via sysfs, are not lost across power state changes (Kai-Heng Feng) Endpoint framework: - Don't stop an EPC when unbinding an EPF from it (Shunsuke Mie) Endpoint embedded DMA controller driver: - Simplify and clean up support for the DesignWare embedded DMA (eDMA) controller (Frank Li, Serge Semin) Broadcom STB PCIe controller driver: - Avoid config space accesses when link is down because we can't recover from the CPU aborts these cause (Jim Quinlan) - Look for power regulators described under Root Ports in DT and enable them before scanning the secondary bus (Jim Quinlan) - Disable/enable regulators in suspend/resume (Jim Quinlan) Freescale i.MX6 PCIe controller driver: - Simplify and clean up clock and PHY management (Richard Zhu) - Disable/enable regulators in suspend/resume (Richard Zhu) - Set PCIE_DBI_RO_WR_EN before writing DBI registers (Richard Zhu) - Allow speeds faster than Gen2 (Richard Zhu) - Make link being down a non-fatal error so controller probe doesn't fail if there are no Endpoints connected (Richard Zhu) Loongson PCIe controller driver: - Add ACPI and MCFG support for Loongson LS7A (Huacai Chen) - Avoid config reads to non-existent LS2K/LS7A devices because a hardware defect causes machine hangs (Huacai Chen) - Work around LS7A integrated devices that report incorrect Interrupt Pin values (Jianmin Lv) Marvell Aardvark PCIe controller driver: - Add support for AER and Slot capability on emulated bridge (Pali Rohár) MediaTek PCIe controller driver: - Add Airoha EN7532 to DT binding (John Crispin) - Allow building of driver for ARCH_AIROHA (Felix Fietkau) MediaTek PCIe Gen3 controller driver: - Print decoded LTSSM state when the link doesn't come up (Jianjun Wang) NVIDIA Tegra194 PCIe controller driver: - Convert DT binding to json-schema (Vidya Sagar) - Add DT bindings and driver support for Tegra234 Root Port and Endpoint mode (Vidya Sagar) - Fix some Root Port interrupt handling issues (Vidya Sagar) - Set default Max Payload Size to 256 bytes (Vidya Sagar) - Fix Data Link Feature capability programming (Vidya Sagar) - Extend Endpoint mode support to devices beyond Controller-5 (Vidya Sagar) Qualcomm PCIe controller driver: - Rework clock, reset, PHY power-on ordering to avoid hangs and improve consistency (Robert Marko, Christian Marangi) - Move pipe_clk handling to PHY drivers (Dmitry Baryshkov) - Add IPQ60xx support (Selvam Sathappan Periakaruppan) - Allow ASPM L1 and substates for 2.7.0 (Krishna chaitanya chundru) - Add support for more than 32 MSI interrupts (Dmitry Baryshkov) Renesas R-Car PCIe controller driver: - Convert DT binding to json-schema (Herve Codina) - Add Renesas RZ/N1D (R9A06G032) to rcar-gen2 DT binding and driver (Herve Codina) Samsung Exynos PCIe controller driver: - Fix phy-exynos-pcie driver so it follows the 'phy_init() before phy_power_on()' PHY programming model (Marek Szyprowski) Synopsys DesignWare PCIe controller driver: - Simplify and clean up the DWC core extensively (Serge Semin) - Fix an issue with programming the ATU for regions that cross a 4GB boundary (Serge Semin) - Enable the CDM check if 'snps,enable-cdm-check' exists; previously we skipped it if 'num-lanes' was absent (Serge Semin) - Allocate a 32-bit DMA-able page to be MSI target instead of using a driver data structure that may not be addressable with 32-bit address (Will McVicker) - Add DWC core support for more than 32 MSI interrupts (Dmitry Baryshkov) Xilinx Versal CPM PCIe controller driver: - Add DT binding and driver support for Versal CPM5 Gen5 Root Port (Bharat Kumar Gogada)" * tag 'pci-v5.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (150 commits) PCI: imx6: Support more than Gen2 speed link mode PCI: imx6: Set PCIE_DBI_RO_WR_EN before writing DBI registers PCI: imx6: Reformat suspend callback to keep symmetric with resume PCI: imx6: Move the imx6_pcie_ltssm_disable() earlier PCI: imx6: Disable clocks in reverse order of enable PCI: imx6: Do not hide PHY driver callbacks and refine the error handling PCI: imx6: Reduce resume time by only starting link if it was up before suspend PCI: imx6: Mark the link down as non-fatal error PCI: imx6: Move regulator enable out of imx6_pcie_deassert_core_reset() PCI: imx6: Turn off regulator when system is in suspend mode PCI: imx6: Call host init function directly in resume PCI: imx6: Disable i.MX6QDL clock when disabling ref clocks PCI: imx6: Propagate .host_init() errors to caller PCI: imx6: Collect clock enables in imx6_pcie_clk_enable() PCI: imx6: Factor out ref clock disable to match enable PCI: imx6: Move imx6_pcie_clk_disable() earlier PCI: imx6: Move imx6_pcie_enable_ref_clk() earlier PCI: imx6: Move PHY management functions together PCI: imx6: Move imx6_pcie_grp_offset(), imx6_pcie_configure_type() earlier PCI: imx6: Convert to NOIRQ_SYSTEM_SLEEP_PM_OPS() ...
| * dmaengine: dw-edma: Add support for chip-specific flagsFrank Li2022-06-231-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a "flags" field to the "struct dw_edma_chip" so that the controller drivers can pass flags that are relevant to the platform. DW_EDMA_CHIP_LOCAL - Used by the controller drivers accessing eDMA locally. Local eDMA access doesn't require generating MSIs to the remote. Link: https://lore.kernel.org/r/20220524152159.2370739-8-Frank.Li@nxp.com Tested-by: Serge Semin <fancer.lancer@gmail.com> Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Serge Semin <fancer.lancer@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Acked-By: Vinod Koul <vkoul@kernel.org>
| * dmaengine: dw-edma: Fix eDMA Rd/Wr-channels and DMA-direction semanticsSerge Semin2022-06-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In accordance with [1, 2] the DW eDMA controller has been created to be part of the DW PCIe Root Port and DW PCIe End-point controllers and to offload the transferring of large blocks of data between application and remote PCIe domains leaving the system CPU free for other tasks. In the first case (eDMA being part of DW PCIe Root Port) the eDMA controller is always accessible via the CPU DBI interface and never over the PCIe wire. The latter case is more complex. Depending on the DW PCIe End-Point IP-core synthesize parameters it's possible to have the eDMA registers accessible not only from the application CPU side, but also via mapping the eDMA CSRs over a dedicated endpoint BAR. So based on the specifics denoted above the eDMA driver is supposed to support two types of the DMA controller setups: 1) eDMA embedded into the DW PCIe Root Port/End-point and accessible over the local CPU from the application side. 2) eDMA embedded into the DW PCIe End-point and accessible via the PCIe wire with MWr/MRd TLPs generated by the CPU PCIe host controller. Since the CPU memory resides different sides in these cases the semantics of the MEM_TO_DEV and DEV_TO_MEM operations is flipped with respect to the Tx and Rx DMA channels. So MEM_TO_DEV/DEV_TO_MEM corresponds to the Tx/Rx channels in setup 1) and to the Rx/Tx channels in case of setup 2). The DW eDMA driver has supported the case 2) since e63d79d1ffcd ("dmaengine: Add Synopsys eDMA IP core driver") in the framework of the drivers/dma/dw-edma/dw-edma-pcie.c driver. The case 1) support was added later by bd96f1b2f43a ("dmaengine: dw-edma: support local dma device transfer semantics"). Afterwards the driver was supposed to cover the both possible eDMA setups, but the latter commit turned out to be not fully correct. The problem was that the commit together with the new functionality support also changed the channel direction semantics so the eDMA Read-channel (corresponding to the DMA_DEV_TO_MEM direction for case 1) now uses the sgl/cyclic base addresses as the Source addresses of the DMA transfers and dma_slave_config.dst_addr as the Destination address of the DMA transfers. Similarly the eDMA Write-channel (corresponding to the DMA_MEM_TO_DEV direction for case 1) now uses dma_slave_config.src_addr as a source address of the DMA transfers and sgl/cyclic base address as the Destination address of the DMA transfers. This contradicts the logic of the DMA-interface, which implies that DEV side is supposed to belong to the PCIe device memory and MEM - to the CPU/Application memory. Indeed it seems irrational to have the SG-list defined in the PCIe bus space, while expecting a contiguous buffer allocated in the CPU memory. Moreover the passed SG-list and cyclic DMA buffers are supposed to be mapped in a way so to be seen by the DW eDMA Application (CPU) interface. So in order to have the correct DW eDMA interface we need to invert the eDMA Rd/Wr-channels and DMA-slave directions semantics by selecting the src/dst addresses based on the DMA transfer direction instead of using the channel direction capability. [1] DesignWare Cores PCI Express Controller Databook - DWC PCIe Root Port, v.5.40a, March 2019, p.1092 [2] DesignWare Cores PCI Express Controller Databook - DWC PCIe Endpoint, v.5.40a, March 2019, p.1189 Co-developed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Fixes: bd96f1b2f43a ("dmaengine: dw-edma: support local dma device transfer semantics") Link: https://lore.kernel.org/r/20220524152159.2370739-7-Frank.Li@nxp.com Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-By: Vinod Koul <vkoul@kernel.org>
| * dmaengine: dw-edma: Drop dma_slave_config.direction field usageSerge Semin2022-06-231-15/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dma_slave_config.direction field usage in the DW eDMA driver was introduced by bd96f1b2f43a ("dmaengine: dw-edma: support local dma device transfer semantics"). Mainly the change introduced there was correct (indeed DEV_TO_MEM means using RD-channel and MEM_TO_DEV - WR-channel for the case of having eDMA accessed locally from CPU/Application side), but providing an additional MEM_TO_MEM/DEV_TO_DEV-based semantics was quite redundant if not to say potentially harmful (when it comes to removing the denoted field). First of all since the dma_slave_config.direction field has been marked as obsolete (see [1] and the struct dma_slave_config [2]) and will be discarded in future, using it especially in a non-standard way is discouraged. Secondly in accordance with the commit denoted above the default dw_edma_device_transfer() semantics has been changed despite what its message said. So claiming that the method was left backward compatible was wrong. Fix the problems denoted above and simplify the dw_edma_device_transfer() method by dropping the parsing of the DMA-channel direction field. Instead of having that implicit dma_slave_config.direction field semantic, use the recently added DW_EDMA_CHIP_LOCAL flag to distinguish between the local and remote DW eDMA setups thus preserving support for both cases. Add an ASCII figure to clarify the situation. [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/driver-api/dmaengine/provider.rst?id=v5.18#n478 [2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/linux/dmaengine.h?id=v5.18#n389 [bhelgaas: convert references to specific URLs] Co-developed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/20220524152159.2370739-6-Frank.Li@nxp.com Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-By: Vinod Koul <vkoul@kernel.org>
| * dmaengine: dw-edma: Rename wr(rd)_ch_cnt to ll_wr(rd)_cnt in struct dw_edma_chipFrank Li2022-06-232-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The struct dw_edma contains wr(rd)_ch_cnt fields. The EDMA driver gets write(read) channel number from register, then saves these into dw_edma. The wr(rd)_ch_cnt in dw_edma_chip actually means how many link list memory are available in ll_region_wr(rd)[EDMA_MAX_WR_CH]. Rename it to ll_wr(rd)_cnt to indicate actual usage. Link: https://lore.kernel.org/r/20220524152159.2370739-5-Frank.Li@nxp.com Tested-by: Serge Semin <fancer.lancer@gmail.com> Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Serge Semin <fancer.lancer@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Acked-By: Vinod Koul <vkoul@kernel.org>
| * dmaengine: dw-edma: Change rg_region to reg_base in struct dw_edma_chipFrank Li2022-06-233-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | struct dw_edma_region rg_region included virtual address, physical address and size information. But only the virtual address is used by EDMA driver. Change it to void __iomem *reg_base to clean up code. Link: https://lore.kernel.org/r/20220524152159.2370739-4-Frank.Li@nxp.com Tested-by: Serge Semin <fancer.lancer@gmail.com> Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Serge Semin <fancer.lancer@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Acked-By: Vinod Koul <vkoul@kernel.org>
| * dmaengine: dw-edma: Detach the private data and chip info structuresFrank Li2022-06-237-148/+117
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "struct dw_edma_chip" contains an internal structure "struct dw_edma" that is used by the eDMA core internally and should not be touched by the eDMA controller drivers themselves. But currently, the eDMA controller drivers like "dw-edma-pci" allocate and populate this internal structure before passing it on to the eDMA core. The eDMA core further populates the structure and uses it. This is wrong! Hence, move all the "struct dw_edma" specifics from controller drivers to the eDMA core. Link: https://lore.kernel.org/r/20220524152159.2370739-3-Frank.Li@nxp.com Tested-by: Serge Semin <fancer.lancer@gmail.com> Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Serge Semin <fancer.lancer@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Acked-By: Vinod Koul <vkoul@kernel.org>
| * dmaengine: dw-edma: Remove unused irq field in struct dw_edma_chipFrank Li2022-06-161-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | The "irq" field of struct dw_edma_chip was never used. Remove it. Link: https://lore.kernel.org/r/20220524152159.2370739-2-Frank.Li@nxp.com Tested-by: Serge Semin <fancer.lancer@gmail.com> Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Serge Semin <fancer.lancer@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Acked-By: Vinod Koul <vkoul@kernel.org>
* | Merge tag 'dmaengine-6.0-rc1' of ↵Linus Torvalds2022-08-0532-216/+1035
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine Pull dmaengine updates from Vinod Koul: "New support / Core: - Remove DMA_MEMCPY_SG for lack of users - Tegra 234 dmaengine support - Mediatek MT8365 dma support - Apple ADMAC driver Updates: - Yaml conversion for ST-Ericsson DMA40 binding and Freescale edma - rz-dmac updates and device_synchronize support - Bunch of typo in comments fixes in drivers - multithread support in sf-pdma driver" * tag 'dmaengine-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (50 commits) dmaengine: mediatek: mtk-hsdma: Fix typo 'the the' in comment dmaengine: axi-dmac: check cache coherency register dmaengine: sh: rz-dmac: Add device_synchronize callback dmaengine: sprd: Cleanup in .remove() after pm_runtime_get_sync() failed dmaengine: tegra: Add terminate() for Tegra234 dt-bindings: dmaengine: Add compatible for Tegra234 dmaengine: xilinx: use strscpy to replace strlcpy dmaengine: imx-sdma: Add FIFO stride support for multi FIFO script dmaengine: idxd: Correct IAX operation code names dmaengine: imx-dma: Cast of_device_get_match_data() with (uintptr_t) dmaengine: dw-axi-dmac: ignore interrupt if no descriptor dmaengine: dw-axi-dmac: do not print NULL LLI during error dmaengine: altera-msgdma: Fixed some inconsistent function name descriptions dmaengine: imx-sdma: Add missing struct documentation dmaengine: sf-pdma: Add multithread support for a DMA channel dt-bindings: dma: dw-axi-dmac: extend the number of interrupts dmaengine: dmatest: use strscpy to replace strlcpy dmaengine: ste_dma40: fix typo in comment dmaengine: jz4780: fix typo in comment dmaengine: s3c24xx: fix typo in comment ...
| * | dmaengine: mediatek: mtk-hsdma: Fix typo 'the the' in commentSlark Xiao2022-07-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Replace 'the the' with 'the' in the comment. Signed-off-by: Slark Xiao <slark_xiao@163.com> Link: https://lore.kernel.org/r/20220721055647.46085-1-slark_xiao@163.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: axi-dmac: check cache coherency registerMathias Tausen2022-07-261-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Marking the DMA as cache coherent (dma-coherent in devicetree) is only safe with versions of axi_dmac that have this feature enabled. Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Vinod Koul <vkoul@kernel.org> Acked-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Mathias Tausen <mta@satlab.com> Link: https://lore.kernel.org/r/20220726140213.786939-1-mta@satlab.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: sh: rz-dmac: Add device_synchronize callbackBiju Das2022-07-261-0/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some on-chip peripheral modules(for eg:- rspi) on RZ/G2L SoC use the same signal for both interrupt and DMA transfer requests. The signal works as a DMA transfer request signal by setting DMARS, and subsequent interrupt requests to the interrupt controller are masked. We can re-enable the interrupt by clearing the DMARS. This patch adds device_synchronize callback for clearing DMARS and thereby allowing DMA consumers to switch to interrupt mode. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20220722084430.969333-1-biju.das.jz@bp.renesas.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: sprd: Cleanup in .remove() after pm_runtime_get_sync() failedUwe Kleine-König2022-07-261-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's not allowed to quit remove early without cleaning up completely. Otherwise this results in resource leaks that probably yield graver problems later. Here for example some tasklets might survive the lifetime of the sprd-dma device and access sdev which is freed after .remove() returns. As none of the device freeing requires an active device, just ignore the return value of pm_runtime_get_sync(). Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Baolin Wang <baolin.wang7@gmail.com> Link: https://lore.kernel.org/r/20220721204054.323602-1-u.kleine-koenig@pengutronix.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: tegra: Add terminate() for Tegra234Akhil R2022-07-261-2/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In certain cases where the DMA client bus gets corrupted or if the end device ceases to send/receive data, DMA can wait indefinitely for the data to be received/sent. Attempting to terminate the transfer will put the DMA in pause flush mode and it remains there. The channel is irrecoverable once this pause times out in Tegra194 and earlier chips. Whereas, from Tegra234, it can be recovered by disabling the channel and reprograming it. Hence add a new terminate() function that ignores the outcome of dma_pause() so that terminate_all() can proceed to disable the channel. Signed-off-by: Akhil R <akhilrajeev@nvidia.com> Reviewed-by: Jon Hunter <jonathanh@nvidia.com> Link: https://lore.kernel.org/r/20220720104045.16099-3-akhilrajeev@nvidia.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: xilinx: use strscpy to replace strlcpyXueBing Chen2022-07-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The strlcpy should not be used because it doesn't limit the source length. Preferred is strscpy. Signed-off-by: XueBing Chen <chenxuebing@jari.cn> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://lore.kernel.org/r/39aa840f.e31.181ed9461c2.Coremail.chenxuebing@jari.cn Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: imx-sdma: Add FIFO stride support for multi FIFO scriptShengjiu Wang2022-07-211-2/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The peripheral may have several FIFOs, but some case just select some FIFOs from them for data transfer, which means FIFO0 and FIFO2 may be selected. So add FIFO address stride support, 0 means all FIFOs are continuous, 1 means 1 word stride between FIFOs. All stride between FIFOs should be same. Another option words_per_fifo means how many audio channel data copied to one FIFO one time, 1 means one channel per FIFO, 2 means 2 channels per FIFO. If 'n_fifos_src = 4' and 'words_per_fifo = 2', it means the first two words(channels) fetch from FIFO0 and then jump to FIFO1 for next two words, and so on after the last FIFO3 fetched, roll back to FIFO0. Signed-off-by: Joy Zou <joy.zou@nxp.com> Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> Link: https://lore.kernel.org/r/1657162829-9273-1-git-send-email-shengjiu.wang@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: imx-dma: Cast of_device_get_match_data() with (uintptr_t)Fabio Estevam2022-07-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the of_device_get_match_data() cast to (uintptr_t) to silence the following clang warning: drivers/dma/imx-dma.c:1048:20: warning: cast to smaller integer type 'enum imx_dma_type' from 'const void *' [-Wvoid-pointer-to-enum-cast] Reported-by: kernel test robot <lkp@intel.com> Fixes: 0ab785c894e6 ("dmaengine: imx-dma: Remove unused .id_table") Signed-off-by: Fabio Estevam <festevam@denx.de> Link: https://lore.kernel.org/r/20220706111327.940764-1-festevam@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: dw-axi-dmac: ignore interrupt if no descriptorBen Dooks2022-07-211-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the channel has no descriptor and the interrupt is raised then the kernel will OOPS. Check the result of vchan_next_desc() in the handler axi_chan_block_xfer_complete() to avoid the error happening. Signed-off-by: Ben Dooks <ben.dooks@sifive.com> Link: https://lore.kernel.org/r/20220708170153.269991-4-ben.dooks@sifive.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: dw-axi-dmac: do not print NULL LLI during errorBen Dooks2022-07-211-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During debugging we have seen an issue where axi_chan_dump_lli() is passed a NULL LLI pointer which ends up causing an OOPS due to trying to get fields from it. Simply print NULL LLI and exit to avoid this. Signed-off-by: Ben Dooks <ben.dooks@sifive.com> Link: https://lore.kernel.org/r/20220708170153.269991-3-ben.dooks@sifive.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: altera-msgdma: Fixed some inconsistent function name descriptionsJiapeng Chong2022-07-061-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Inconsistent function names describing msgdma_chan_remove() and msgdma_dma_remove are modified to msgdma_dev_remove() and msgdma_remove(). Remove some warnings found by running scripts/kernel-doc, which is caused by using 'make W=1'. drivers/dma/altera-msgdma.c:927: warning: expecting prototype for msgdma_dma_remove(). Prototype was for msgdma_remove() instead. drivers/dma/altera-msgdma.c:758: warning: expecting prototype for msgdma_chan_remove(). Prototype was for msgdma_dev_remove() instead. Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Reviewed-by: Stefan Roese <sr@denx.de> Link: https://lore.kernel.org/r/20220706082605.114907-1-jiapeng.chong@linux.alibaba.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: imx-sdma: Add missing struct documentationShengjiu Wang2022-07-061-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix compile warning that 'Function parameter or member not described' with 'W=1' option: Add missing description for struct sdma_desc There is not any description for struct sdma_script_start_addrs, so use /* instead of /** Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> Link: https://lore.kernel.org/r/1657086309-7964-1-git-send-email-shengjiu.wang@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: sf-pdma: Add multithread support for a DMA channelViacheslav Mitrofanov2022-07-061-14/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we get a DMA channel and try to use it in multiple threads it will cause oops and hanging the system. % echo 64 > /sys/module/dmatest/parameters/threads_per_chan % echo 10000 > /sys/module/dmatest/parameters/iterations % echo 1 > /sys/module/dmatest/parameters/run [ 89.480664] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a0 [ 89.488725] Oops [#1] [ 89.494708] CPU: 2 PID: 1008 Comm: dma0chan0-copy0 Not tainted 5.17.0-rc5 [ 89.509385] epc : vchan_find_desc+0x32/0x46 [ 89.513553] ra : sf_pdma_tx_status+0xca/0xd6 This happens because of data race. Each thread rewrite channels's descriptor as soon as device_prep_dma_memcpy() is called. It leads to the situation when the driver thinks that it uses right descriptor that actually is freed or substituted for other one. With current fixes a descriptor changes its value only when it has been used. A new descriptor is acquired from vc->desc_issued queue that is already filled with descriptors that are ready to be sent. Threads have no direct access to DMA channel descriptor. Now it is just possible to queue a descriptor for further processing. Fixes: 6973886ad58e ("dmaengine: sf-pdma: add platform DMA support for HiFive Unleashed A00") Signed-off-by: Viacheslav Mitrofanov <v.v.mitrofanov@yadro.com> Link: https://lore.kernel.org/r/20220701082942.12835-1-v.v.mitrofanov@yadro.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: dmatest: use strscpy to replace strlcpyXueBing Chen2022-07-061-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | The strlcpy should not be used because it doesn't limit the source length. Preferred is strscpy. Signed-off-by: XueBing Chen <chenxuebing@jari.cn> Link: https://lore.kernel.org/r/12e4cf06.a35.180fa748c29.Coremail.chenxuebing@jari.cn Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: ste_dma40: fix typo in commentJulia Lawall2022-07-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Spelling mistake (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20220521111145.81697-17-Julia.Lawall@inria.fr Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: jz4780: fix typo in commentJulia Lawall2022-07-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Spelling mistake (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Acked-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20220521111145.81697-20-Julia.Lawall@inria.fr Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: s3c24xx: fix typo in commentJulia Lawall2022-07-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Spelling mistake (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20220521111145.81697-46-Julia.Lawall@inria.fr Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: owl: fix typo in commentJulia Lawall2022-07-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Spelling mistake (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Link: https://lore.kernel.org/r/20220521111145.81697-7-Julia.Lawall@inria.fr Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: mediatek-cqdma: fix typo in commentJulia Lawall2022-07-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Spelling mistake (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Link: https://lore.kernel.org/r/20220521111145.81697-61-Julia.Lawall@inria.fr Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: fix typos in commentsJulia Lawall2022-07-062-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Spelling mistakes (triple letters) in comments. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Link: https://lore.kernel.org/r/20220521111145.81697-51-Julia.Lawall@inria.fr Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: xilinx_dpdma: Omit superfluous error message in xilinx_dpdma_probe()Tang Bin2022-07-061-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the function xilinx_dpdma_probe(), when get irq failed, the function platform_get_irq() logs an error message, so remove redundant message here. Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com> Link: https://lore.kernel.org/r/20220519130855.7664-1-tangbin@cmss.chinamobile.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: sun4i: Set the maximum segment sizeSamuel Holland2022-07-051-5/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The sun4i DMA engine supports transfer sizes up to 128k for normal DMA and 16M for dedicated DMA, as documented in the A10 and A20 manuals. Since this is larger than the default segment size limit (64k), exposing the real limit reduces the number of transfers needed for a transaction. However, because the device can only report one segment size limit, we have to expose the smaller limit from normal DMA. One complication is that the driver combines pairs of periodic transfers to reduce programming overhead. This only works when the period size is at most half of the maximum transfer size. With the default 64k segment size limit, this was always the case, but for normal DMA it is no longer guaranteed. Skip the optimization if the period is too long; even without it, the overhead is less than before. Signed-off-by: Samuel Holland <samuel@sholland.org> Link: https://lore.kernel.org/r/20220621031350.36187-1-samuel@sholland.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: fsl-edma: remove redundant assignment to pointer last_sgColin Ian King2022-07-011-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The pointer last_sg is being assigned a value at the start of a loop however it is never read and is being re-assigned later on in both brances of an if-statement. The assignment is redundant and can be removed. Cleans up clang scan-build warning: drivers/dma/fsl-edma-common.c:563:3: warning: Value stored to 'last_sg' is never read [deadcode.DeadStores] Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Link: https://lore.kernel.org/r/20220614184759.164379-1-colin.i.king@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: mediatek: mtk-hsdma: Fix typo in commentXiang wangx2022-07-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Delete the redundant word 'be'. Signed-off-by: Xiang wangx <wangxiang@cdjrlc.com> Link: https://lore.kernel.org/r/20220618130120.9783-1-wangxiang@cdjrlc.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: at_xdmac: Fix typo in commentXiang wangx2022-07-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Delete the redundant word 'the'. Signed-off-by: Xiang wangx <wangxiang@cdjrlc.com> Link: https://lore.kernel.org/r/20220618130349.11507-1-wangxiang@cdjrlc.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: ep93xx: Fix typo in commentsJiang Jian2022-07-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Remove the repeated word 'and' from comments Signed-off-by: Jiang Jian <jiangjian@cdjrlc.com> Link: https://lore.kernel.org/r/20220622143158.15091-1-jiangjian@cdjrlc.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: imx-sdma: Improve the SDMA irq nameFabio Estevam2022-07-011-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On SoCs with several SDMA instances, such as i.MX8M for example, all the SDMA related interrupts appear with the same "sdma" name. Improve the SDMA irq name by associating it with the SDMA instance via dev_name(), so that the SDMA irq names can be unique. Signed-off-by: Fabio Estevam <festevam@denx.de> Link: https://lore.kernel.org/r/20220623123353.2570410-1-festevam@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: ti: k3-psil-j721s2: Add psil threads for sa2ulJayesh Choudhary2022-07-011-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add endpoint configuration for the four ingress and two egress threads for main domain crypto accelerator. Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com> Link: https://lore.kernel.org/r/20220628050232.331956-1-j-choudhary@ti.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: remove DMA_MEMCPY_SG once againChristoph Hellwig2022-06-272-129/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This was removed before due to the complete lack of users, but 3218910fd585 ("dmaengine: Add core function and capability check for DMA_MEMCPY_SG") and 29cf37fa6dd9 ("dmaengine: Add consumer for the new DMA_MEMCPY_SG API function.") added it back despite still not having any users whatsoever. Fixes: 3218910fd585 ("dmaengine: Add core function and capability check for DMA_MEMCPY_SG") Fixes: 29cf37fa6dd9 ("dmaengine: Add consumer for the new DMA_MEMCPY_SG API function.") Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/20220606074733.622616-1-hch@lst.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: stm32-mdma: Remove dead code in stm32_mdma_irq_handler()Alexey Khoroshilov2022-06-161-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Local variable chan is initialized by an address of element of chan array that is part of stm32_mdma_device struct, so it does not make sense to compare chan with NULL. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Fixes: a4ffb13c8946 ("dmaengine: Add STM32 MDMA driver") Reviewed-by: Amelie Delaunay <amelie.delaunay@foss.st.com> Link: https://lore.kernel.org/r/1655072638-9103-1-git-send-email-khoroshilov@ispras.ru Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: apple-admac: Use {low,upp}er_32_bits() to split 64-bit addressGeert Uytterhoeven2022-06-161-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If CONFIG_PHYS_ADDR_T_64BIT is not set: drivers/dma/apple-admac.c: In function ‘admac_cyclic_write_one_desc’: drivers/dma/apple-admac.c:213:22: error: right shift count >= width of type [-Werror=shift-count-overflow] 213 | writel_relaxed(addr >> 32, ad->base + REG_DESC_WRITE(channo)); | ^~ Fix this by using the {low,upp}er_32_bits() helper macros to obtain the address parts. Reported-by: noreply@ellerman.id.au Fixes: b127315d9a78c011 ("dmaengine: apple-admac: Add Apple ADMAC driver") Acked-by: Martin Povišer <povik+lin@cutebit.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/20220616141312.1953819-1-geert@linux-m68k.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: dw-edma: remove a macro conditional with similar branchesVladimir Zapolskiy2022-06-101-8/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After adding commit 8fc5133d6d4d ("dmaengine: dw-edma: Fix unaligned 64bit access") two branches under macro conditional become identical, thus the code can be simplified without any functional change. Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org> Acked-by: Herve Codina <herve.codina@bootlin.com> Link: https://lore.kernel.org/r/20220610100700.2295522-1-vladimir.zapolskiy@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: dw: dmamux: Fix build without CONFIG_OFMiquel Raynal2022-06-101-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When built without OF support, of_match_node() expands to NULL, which produces the following output: >> drivers/dma/dw/rzn1-dmamux.c:105:34: warning: unused variable 'rzn1_dmac_match' [-Wunused-const-variable] static const struct of_device_id rzn1_dmac_match[] = { One way to silence the warning is to enclose the structure definition with an #ifdef CONFIG_OF/#endif block. Fixes: 134d9c52fca2 ("dmaengine: dw: dmamux: Introduce RZN1 DMA router support") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220609141455.300879-2-miquel.raynal@bootlin.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: dw: dmamux: Export the module device tableMiquel Raynal2022-06-101-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a tristate driver that can be built as a module, as a result, the OF match table should be exported with MODULE_DEVICE_TABLE(). Fixes: 134d9c52fca2 ("dmaengine: dw: dmamux: Introduce RZN1 DMA router support") Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220609141455.300879-1-miquel.raynal@bootlin.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: apple-admac: Fix print formatVinod Koul2022-06-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We get a warning (treated as error now) drivers/dma/apple-admac.c: In function 'admac_cyclic_write_one_desc': drivers/dma/apple-admac.c:209:26: error: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'long unsigned int' [-Werror=format=] 209 | dev_dbg(ad->dev, "ch%d descriptor: addr=0x%pad len=0x%zx flags=0x%x\n", Use %lx for priniting the flag Fixes: b127315d9a78 ("dmaengine: apple-admac: Add Apple ADMAC driver") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Vinod Koul <vkoul@kernel.org> Link: https://lore.kernel.org/r/20220610043117.39337-1-vkoul@kernel.org Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: apple-admac: Add Apple ADMAC driverMartin Povišer2022-06-093-0/+827
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add driver for Audio DMA Controller present on Apple SoCs from the "Apple Silicon" family. Signed-off-by: Martin Povišer <povik+lin@cutebit.org> Link: https://lore.kernel.org/r/20220531213615.7822-3-povik+lin@cutebit.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: dmatest: Replace symbolic permissions by octal permissionsGeert Uytterhoeven2022-06-091-15/+14
| | | | | | | | | | | | | | | | | | | | | | | | Octal permissions are easier to read. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/a745b883288f95e999b71fac677bbc2daa13c22d.1654702928.git.geert+renesas@glider.be Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * | dmaengine: dmatest: Remove spaces before tabsGeert Uytterhoeven2022-06-091-2/+2
| |/ | | | | | | | | | | | | | | Scripts/checkpath.pl says "please, no space before tabs". Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/d863916120d043e3f9dd2f2670238c34f68f7d5f.1654702886.git.geert+renesas@glider.be Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2022-08-051-3/+0
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32 Pull AVR32 updates from Hans-Christian Noren Egtvedt: "Mostly changes to documentation and comments" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32: video:backlight: remove reference to AVR32 architecture in ltv350qv video: remove support for non-existing atmel,at32ap-lcdc in atmel_lcdfb usb:udc: remove reference to AVR32 architecture in Atmel USBA Kconfig sound:spi: remove reference to AVR32 in Atmel AT73C213 DAC driver net: remove cdns,at32ap7000-macb device tree entry misc: update maintainer email address and description for atmel-ssc mfd: remove reference to AVR32 architecture in atmel-smc.c dma:dw: remove reference to AVR32 architecture in core.c
| * | dma:dw: remove reference to AVR32 architecture in core.cHans-Christian Noren Egtvedt2022-08-031-3/+0
| | | | | | | | | | | | | | | | | | | | | The AVR32 architecture does no longer exist in the Linux kernel, hence remove a reference to it in comments to avoid confusion. Signed-off-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
* | | Merge tag 'spdx-6.0-rc1' of ↵Linus Torvalds2022-08-0410-61/+11
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx Pull SPDX updates from Greg KH: "Here is the set of SPDX comment updates for 6.0-rc1. Nothing huge here, just a number of updated SPDX license tags and cleanups based on the review of a number of common patterns in GPLv2 boilerplate text. Also included in here are a few other minor updates, two USB files, and one Documentation file update to get the SPDX lines correct. All of these have been in the linux-next tree for a very long time" * tag 'spdx-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: (28 commits) Documentation: samsung-s3c24xx: Add blank line after SPDX directive x86/crypto: Remove stray comment terminator treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_406.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_398.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_391.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_390.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_385.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_320.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_319.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_318.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_298.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_292.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_179.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_168.RULE (part 2) treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_168.RULE (part 1) treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_160.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_152.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_149.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_147.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_133.RULE ...
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