linux-stable.git/drivers/dma/sh, branch v4.9

Merge tag 'dmaengine-4.9-rc1' of git://git.infradead.org/users/vkoul/slave-dma

2016-10-07T00:13:54+00:00

Pull dmaengine updates from Vinod Koul:
 "This is bit large pile of code which bring in some nice additions:

   - Error reporting: we have added a new mechanism for users of
     dmaenegine to register a callback_result which tells them the
     result of the dma transaction. Right now only one user (ntb) is
     using it.

   - As we discussed on KS mailing list and pointed out NO_IRQ has no
     place in kernel, this also remove NO_IRQ from dmaengine subsystem
     (both arm and ppc users)

   - Support for IOMMU slave transfers and its implementation for arm.

   - To get better build coverage, enable COMPILE_TEST for bunch of
     driver, and fix the warning and sparse complaints on these.

   - Apart from above, usual updates spread across drivers"

* tag 'dmaengine-4.9-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (169 commits)
  async_pq_val: fix DMA memory leak
  dmaengine: virt-dma: move function declarations
  dmaengine: omap-dma: Enable burst and data pack for SG
  DT: dmaengine: rcar-dmac: document R8A7743/5 support
  dmaengine: fsldma: Unmap region obtained by of_iomap
  dmaengine: jz4780: fix resource leaks on error exit return
  dma-debug: fix ia64 build, use PHYS_PFN
  dmaengine: coh901318: fix integer overflow when shifting more than 32 places
  dmaengine: edma: avoid uninitialized variable use
  dma-mapping: fix m32r build warning
  dma-mapping: fix ia64 build, use PHYS_PFN
  dmaengine: ti-dma-crossbar: enable COMPILE_TEST
  dmaengine: omap-dma: enable COMPILE_TEST
  dmaengine: edma: enable COMPILE_TEST
  dmaengine: ti-dma-crossbar: Fix of_device_id data parameter usage
  dmaengine: ti-dma-crossbar: Correct type for of_find_property() third parameter
  dmaengine/ARM: omap-dma: Fix the DMAengine compile test on non OMAP configs
  dmaengine: edma: Rename set_bits and remove unused clear_bits helper
  dmaengine: edma: Use correct type for of_find_property() third parameter
  dmaengine: edma: Fix of_device_id data parameter usage (legacy vs TPCC)
  ...

Merge branch 'topic/iommu' into for-linus

2016-10-03T03:48:06+00:00

dmaengine: rcar-dmac: add iommu support for slave transfers

2016-09-26T16:46:41+00:00

Enable slave transfers to a device behind a IPMMU by mapping the slave
addresses using the dma-mapping API.

Signed-off-by: Niklas Söderlund 
Acked-by: Arnd Bergmann 
Signed-off-by: Vinod Koul

dmaengine: rcar-dmac: group slave configuration

2016-09-26T16:46:41+00:00

Group slave address and transfer size in own structs for source and
destination. This is in preparation for hooking up the dma-mapping API
to the slave addresses.

Signed-off-by: Niklas Söderlund 
Reviewed-by: Laurent Pinchart 
Acked-by: Arnd Bergmann 
Signed-off-by: Vinod Koul

dmaengine: usb-dmac: check CHCR.DE bit in usb_dmac_isr_channel()

2016-08-08T08:12:06+00:00

The USB-DMAC's interruption happens even if the CHCR.DE is not set to 1
because CHCR.NULLE is set to 1. So, this driver should call
usb_dmac_isr_transfer_end() if the DE bit is set to 1 only. Otherwise,
the desc is possible to be NULL in the usb_dmac_isr_transfer_end().

Fixes: 0c1c8ff32fa2 ("dmaengine: usb-dmac: Add Renesas USB DMA Controller (USB-DMAC) driver)
Cc:  # v4.1+
Signed-off-by: Yoshihiro Shimoda 
Signed-off-by: Vinod Koul

dmaengine: sh_shdma-base: convert callback to helper function

2016-08-08T02:41:43+00:00

This is in preperation of moving to a callback that provides results to the
callback for the transaction. The conversion will maintain current behavior
and the driver must convert to new callback mechanism at a later time in
order to receive results.

Signed-off-by: Dave Jiang 
Signed-off-by: Vinod Koul

dmaengine: sh_rcar-dmac: convert callback to helper function

2016-08-08T02:41:41+00:00

This is in preperation of moving to a callback that provides results to the
callback for the transaction. The conversion will maintain current behavior
and the driver must convert to new callback mechanism at a later time in
order to receive results.

Signed-off-by: Dave Jiang 
Reviewed-by: Lars-Peter Clausen 
Signed-off-by: Vinod Koul

Merge branch 'topic/sh' into for-linus

2016-07-16T14:40:17+00:00

dmaengine: rcar-dmac: Fix residue reporting for pending descriptors

2016-07-08T05:39:10+00:00

Cookies corresponding to pending transfers have a residue value equal to
the full size of the corresponding descriptor. The driver miscomputes
that and uses the size of the active descriptor instead. Fix it.

Reported-by: Geert Uytterhoeven 
Signed-off-by: Laurent Pinchart 
[geert: Also check desc.active list]
Signed-off-by: Geert Uytterhoeven 
Signed-off-by: Niklas Söderlund 
Signed-off-by: Vinod Koul

dmaengine: rcar-dmac: Fixed active descriptor initializing

2016-07-08T05:39:10+00:00

Running descriptor pointer is set to NULL upon freeing resources. Other-
wise, rcar_dmac_issue_pending might not start new transfers

Signed-off-by: Muhammad Hamza Farooq 
Signed-off-by: Geert Uytterhoeven 
Signed-off-by: Niklas Söderlund 
Acked-by: Laurent Pinchart 
Signed-off-by: Vinod Koul