kernel.git/Documentation/devicetree/bindings/dma, branch linux-6.15.y

Merge tag 'dmaengine-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine

2025-04-01T19:57:14Z

Pull dmaengine updates from Vinod Koul: "The dmaengine subsystem updates for this cycle consist of a new driver (Microchip) along with couple of yaml binding conversions, core api updates and bunch of driver updates etc. New HW support: - Microchip sama7d65 dma controller - Yaml conversion of atmel dma binding and Freescale Elo DMA Controller binding Core: - Remove device_prep_dma_imm_data() API as users are removed - Reduce scope of some less frequently used DMA request channel APIs with aim to cleanup these in future Updates: - Drop Fenghua Yu from idxd maintainers, as he changed jobs - AMD ptdma support for multiqueue and ae4dma deprecated PCI IDs removal" * tag 'dmaengine-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (29 commits) dmaengine: ptdma: Utilize the AE4DMA engine's multi-queue functionality dmaengine: ae4dma: Use the MSI count and its corresponding IRQ number dmaengine: ae4dma: Remove deprecated PCI IDs dmaengine: Remove device_prep_dma_imm_data from struct dma_device dmaengine: ti: edma: support sw triggered chans in of_edma_xlate() dmaengine: ti: k3-udma: Enable second resource range for BCDMA and PKTDMA dmaengine: fsl-edma: free irq correctly in remove path dmaengine: fsl-edma: cleanup chan after dma_async_device_unregister dt-bindings: dma: snps,dw-axi-dmac: Allow devices to be marked as noncoherent dmaengine: dmatest: Fix dmatest waiting less when interrupted dt-bindings: dma: Convert fsl,elo*-dma to YAML dt-bindings: dma: fsl-mxs-dma: Add compatible string for i.MX8 chips dmaengine: Fix typo in comment dmaengine: ti: k3-udma-glue: Drop skip_fdq argument from k3_udma_glue_reset_rx_chn dmaengine: bcm2835-dma: fix warning when CONFIG_PM=n dt-bindings: dma: fsl,edma: Add i.MX94 support dt-bindings: dma: atmel: add microchip,sama7d65-dma dmaengine: img-mdc: remove incorrect of_match_ptr annotation dmaengine: idxd: Delete unnecessary NULL check dmaengine: pxa: Enable compile test ...

dt-bindings: dma: snps,dw-axi-dmac: Allow devices to be marked as noncoherent

2025-03-10T20:51:44Z

A RISC-V platform can have both DMA coherent/noncoherent devices. Since the RISC-V architecture is marked coherent, devices should be marked as noncoherent when coherent devices exist. Add dma-noncoherent property for snps,dw-axi-dmac device. It will be used on SG2044, and it has other coherent devices. Signed-off-by: Inochi Amaoto Acked-by: Conor Dooley Link: https://lore.kernel.org/r/20250303065649.937233-1-inochiama@gmail.com Signed-off-by: Vinod Koul

dt-bindings: dma: Convert fsl,elo*-dma to YAML

2025-03-10T20:34:15Z

The devicetree bindings for Freescale DMA engines have so far existed as a text file. This patch converts them to YAML, and specifies all the compatible strings currently in use in arch/powerpc/boot/dts. Signed-off-by: J. Neuschäfer Reviewed-by: Rob Herring (Arm) Link: https://lore.kernel.org/r/20250308-ppcyaml-dma-v4-1-20392ea81ec6@posteo.net Signed-off-by: Vinod Koul

dt-bindings: dma: fsl-mxs-dma: Add compatible string for i.MX8 chips

2025-03-10T20:32:46Z

Add compatible string for all i.MX8 chips, which is backward compatible with i.MX28. Set it to fall back to "fsl,imx28-dma-apbh". Signed-off-by: Frank Li Acked-by: Conor Dooley Link: https://lore.kernel.org/r/20250307215100.3257649-1-Frank.Li@nxp.com Signed-off-by: Vinod Koul

dt-bindings: dma: fsl,edma: Add i.MX94 support

2025-02-27T07:06:43Z

Add support for the i.MX94 DMA controllers. The SoC includes two DMA controllers: one compatible with i.MX93 eDMA3 and another compatible with i.MX95 eDMA5. Add compatible string "fsl,imx94-edma3" with fallback to "fsl,imx93-edma3". Add compatible string "fsl,imx94-edma5" with fallback to "fsl,imx95-edma5". Signed-off-by: Frank Li Acked-by: Rob Herring (Arm) Link: https://lore.kernel.org/r/20250221222153.405285-1-Frank.Li@nxp.com Signed-off-by: Vinod Koul

dt-bindings: dma: atmel: add microchip,sama7d65-dma

2025-02-27T07:05:46Z

Add microchip,sama7d65-dma compatible string to DT bindings documentation. Signed-off-by: Ryan Wanner Acked-by: Rob Herring (Arm) Link: https://lore.kernel.org/r/8b69f0c6d8955790edcdbe5d1e205b43dedb99ff.1739555984.git.Ryan.Wanner@microchip.com Signed-off-by: Vinod Koul

dt-bindings: xilinx: Deprecate header with firmware constants

2025-02-21T06:58:35Z

Firmware contants do not fit the purpose of bindings because they are not independent IDs for abstractions. They are more or less just contants which better to wire via header with DT which is using it. That's why add deprecated message to dt binding header and also update existing dt bindings not to use macros from the header and replace them by it's value. Actually value is not relevant because it is only example. The similar changes have been done by commit 9d9292576810 ("dt-bindings: pinctrl: samsung: deprecate header with register constants"). Acked-by: Jonathan Cameron Acked-by: Vinod Koul Acked-by: Conor Dooley Signed-off-by: Michal Simek Link: https://lore.kernel.org/r/2a6f0229522327939e6893565e540b75f854a37b.1738600745.git.michal.simek@amd.com

dt-bindings: dma: convert atmel-dma.txt to YAML

2025-02-10T13:41:59Z

Add a description, required properties, appropriate compatibles and missing properties like clocks and clock-names which are not defined in the text binding for all the SoCs that are supported by microchip. Update the text binding name `atmel-dma.txt` to `atmel,at91sam9g45-dma.yaml` for the files which reference to `atmel-dma.txt`. Drop Tudor name from maintainers. Signed-off-by: Durai Manickam KR Signed-off-by: Charan Pedumuru Reviewed-by: Rob Herring (Arm) Link: https://lore.kernel.org/r/20250203-test-v4-1-a9ec3eded1c7@microchip.com Signed-off-by: Vinod Koul

dt-bindings: dma: atmel: Convert to json schema

2024-12-24T10:37:00Z

Convert old text based binding to json schema. Changes during conversion: - Add the required properties `clock` and `clock-names`, which were missing in the original binding. - Add a fallback for `microchip,sam9x7-dma` and `microchip,sam9x60-dma` as they are compatible with the dma IP core on `atmel,sama5d4-dma`. - Update examples and include appropriate file directives to resolve errors identified by `dt_binding_check` and `dtbs_check`. Signed-off-by: Charan Pedumuru Acked-by: Conor Dooley Link: https://lore.kernel.org/r/20241205-xdma-v1-1-76a4a44670b5@microchip.com Signed-off-by: Vinod Koul

dt-bindings: dma: st-stm32-dmamux: Add description for dma-cell values

2024-12-24T10:36:23Z

The dma-cell values for the stm32-dmamux are used to craft the DMA spec for the actual controller. These values are currently undocumented leaving the user to reverse engineer the driver in order to determine their meaning. Add a basic description, while avoiding duplicating information by pointing the user to the associated DMA docs that describe the fields in depth. Signed-off-by: Ken Sloat Acked-by: Conor Dooley Reviewed-by: Amelie Delaunay Link: https://lore.kernel.org/r/20241206115018.1155149-1-ksloat@cornersoftsolutions.com Signed-off-by: Vinod Koul