DMAengine updates for v4.19-rc1

This round brings couple of framework changes, a new driver and usual driver
 updates:
  - New managed helper for dmaengine framework registration
  - Split dmaengine pause capability to pause and resume and allow drivers to
    report that individually
  - Update dma_request_chan_by_mask() to handle deferred probing
  - Move imx-sdma to use virt-dma
  - New driver for Actions Semi Owl family S900 controller
  - Minor updates to intel, renesas, mv_xor, pl330 etc
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Merge tag 'dmaengine-4.19-rc1' of git://git.infradead.org/users/vkoul/slave-dma

Pull DMAengine updates from Vinod Koul:
 "This round brings couple of framework changes, a new driver and usual
  driver updates:

   - new managed helper for dmaengine framework registration

   - split dmaengine pause capability to pause and resume and allow
     drivers to report that individually

   - update dma_request_chan_by_mask() to handle deferred probing

   - move imx-sdma to use virt-dma

   - new driver for Actions Semi Owl family S900 controller

   - minor updates to intel, renesas, mv_xor, pl330 etc"

* tag 'dmaengine-4.19-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (46 commits)
  dmaengine: Add Actions Semi Owl family S900 DMA driver
  dt-bindings: dmaengine: Add binding for Actions Semi Owl SoCs
  dmaengine: sh: rcar-dmac: Should not stop the DMAC by rcar_dmac_sync_tcr()
  dmaengine: mic_x100_dma: use the new helper to simplify the code
  dmaengine: add a new helper dmaenginem_async_device_register
  dmaengine: imx-sdma: add memcpy interface
  dmaengine: imx-sdma: add SDMA_BD_MAX_CNT to replace '0xffff'
  dmaengine: dma_request_chan_by_mask() to handle deferred probing
  dmaengine: pl330: fix irq race with terminate_all
  dmaengine: Revert "dmaengine: mv_xor_v2: enable COMPILE_TEST"
  dmaengine: mv_xor_v2: use {lower,upper}_32_bits to configure HW descriptor address
  dmaengine: mv_xor_v2: enable COMPILE_TEST
  dmaengine: mv_xor_v2: move unmap to before callback
  dmaengine: mv_xor_v2: convert callback to helper function
  dmaengine: mv_xor_v2: kill the tasklets upon exit
  dmaengine: mv_xor_v2: explicitly freeup irq
  dmaengine: sh: rcar-dmac: Add dma_pause operation
  dmaengine: sh: rcar-dmac: add a new function to clear CHCR.DE with barrier
  dmaengine: idma64: Support dmaengine_terminate_sync()
  dmaengine: hsu: Support dmaengine_terminate_sync()
  ...
This commit is contained in:
Linus Torvalds 2018-08-18 15:55:59 -07:00
commit 13bf2cf9e2
26 changed files with 1600 additions and 307 deletions

View file

@ -0,0 +1,47 @@
* Actions Semi Owl SoCs DMA controller
This binding follows the generic DMA bindings defined in dma.txt.
Required properties:
- compatible: Should be "actions,s900-dma".
- reg: Should contain DMA registers location and length.
- interrupts: Should contain 4 interrupts shared by all channel.
- #dma-cells: Must be <1>. Used to represent the number of integer
cells in the dmas property of client device.
- dma-channels: Physical channels supported.
- dma-requests: Number of DMA request signals supported by the controller.
Refer to Documentation/devicetree/bindings/dma/dma.txt
- clocks: Phandle and Specifier of the clock feeding the DMA controller.
Example:
Controller:
dma: dma-controller@e0260000 {
compatible = "actions,s900-dma";
reg = <0x0 0xe0260000 0x0 0x1000>;
interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
#dma-cells = <1>;
dma-channels = <12>;
dma-requests = <46>;
clocks = <&clock CLK_DMAC>;
};
Client:
DMA clients connected to the Actions Semi Owl SoCs DMA controller must
use the format described in the dma.txt file, using a two-cell specifier
for each channel.
The two cells in order are:
1. A phandle pointing to the DMA controller.
2. The channel id.
uart5: serial@e012a000 {
...
dma-names = "tx", "rx";
dmas = <&dma 26>, <&dma 27>;
...
};

View file

@ -29,6 +29,7 @@ Required Properties:
- "renesas,dmac-r8a77965" (R-Car M3-N)
- "renesas,dmac-r8a77970" (R-Car V3M)
- "renesas,dmac-r8a77980" (R-Car V3H)
- "renesas,dmac-r8a77990" (R-Car E3)
- "renesas,dmac-r8a77995" (R-Car D3)
- reg: base address and length of the registers block for the DMAC

View file

@ -66,6 +66,8 @@ Optional child node properties:
Optional child node properties for VDMA:
- xlnx,genlock-mode: Tells Genlock synchronization is
enabled/disabled in hardware.
- xlnx,enable-vert-flip: Tells vertical flip is
enabled/disabled in hardware(S2MM path).
Optional child node properties for AXI DMA:
-dma-channels: Number of dma channels in child node.