linux.git/drivers/dma/Kconfig, branch v5.8

treewide: replace '---help---' in Kconfig files with 'help'

2020-06-13T16:57:21+00:00

Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over
'---help---'"), the number of '---help---' has been gradually
decreasing, but there are still more than 2400 instances.

This commit finishes the conversion. While I touched the lines,
I also fixed the indentation.

There are a variety of indentation styles found.

  a) 4 spaces + '---help---'
  b) 7 spaces + '---help---'
  c) 8 spaces + '---help---'
  d) 1 space + 1 tab + '---help---'
  e) 1 tab + '---help---'    (correct indentation)
  f) 1 tab + 1 space + '---help---'
  g) 1 tab + 2 spaces + '---help---'

In order to convert all of them to 1 tab + 'help', I ran the
following commend:

  $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/'

Signed-off-by: Masahiro Yamada

Merge tag 'dmaengine-5.8-rc1' of git://git.infradead.org/users/vkoul/slave-dma

2020-06-10T18:03:04+00:00

Pull dmaengine updates from Vinod Koul:
 "A fairly small dmaengine update which includes mostly driver updates
  (dmatest, dw-edma, ioat, mmp-tdma and k3-udma) along with Renesas
  binding update to json-schema"

* tag 'dmaengine-5.8-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (39 commits)
  dmaengine: imx-sdma: initialize all script addresses
  dmaengine: ti: k3-udma: Use proper return code in alloc_chan_resources
  dmaengine: ti: k3-udma: Remove udma_chan.in_ring_cnt
  dmaengine: ti: k3-udma: Add missing dma_sync call for rx flush descriptor
  dmaengine: at_xdmac: Replace zero-length array with flexible-array
  dmaengine: at_hdmac: Replace zero-length array with flexible-array
  dmaengine: qcom: bam_dma: Replace zero-length array with flexible-array
  dmaengine: ti: k3-udma: Use PTR_ERR_OR_ZERO() to simplify code
  dmaengine: moxart-dma: Drop pointless static qualifier in moxart_probe()
  dmaengine: sf-pdma: Simplify the error handling path in 'sf_pdma_probe()'
  dmaengine: qcom_hidma: use true,false for bool variable
  dmaengine: dw-edma: support local dma device transfer semantics
  dmaengine: Fix doc strings to satisfy validation script
  dmaengine: Include dmaengine.h into dmaengine.c
  dmaengine: dmatest: Describe members of struct dmatest_info
  dmaengine: dmatest: Describe members of struct dmatest_params
  dmaengine: dmatest: Allow negative timeout value to specify infinite wait
  Revert "dmaengine: dmatest: timeout value of -1 should specify infinite wait"
  dmaengine: stm32-dma: direct mode support through device tree
  dt-bindings: dma: add direct mode support through device tree in stm32-dma
  ...

dmaengine: mmp_tdma: Remove the MMP_SRAM dependency

2020-04-23T07:16:44+00:00

A generic SRAM will driver for Device Tree enabled platforms will do as
well.

The non-DT drivers that use mmp_tdma to transfer audio samples to and from
the audio SRAM should depend on MMP_SRAM themselves.

Signed-off-by: Lubomir Rintel 
Link: https://lore.kernel.org/r/20200419164912.670973-8-lkundrak@v3.sk
Signed-off-by: Vinod Koul

dmaengine: Fix misspelling of "Analog Devices"

2020-04-17T11:55:33+00:00

According to https://www.analog.com/, the company name is spelled
"Analog Devices".

Signed-off-by: Geert Uytterhoeven 
Reviewed-by: Alexandru Ardelean 
Link: https://lore.kernel.org/r/20200416103058.15269-3-geert+renesas@glider.be
[vkoul: make subsystem name dmaengine]
Signed-off-by: Vinod Koul

dmaengine: hisilicon: Fix build error without PCI_MSI

2020-04-15T15:48:57+00:00

If PCI_MSI is not set, building fais:

drivers/dma/hisi_dma.c: In function ‘hisi_dma_free_irq_vectors’:
drivers/dma/hisi_dma.c:138:2: error: implicit declaration of function ‘pci_free_irq_vectors’;
 did you mean ‘pci_alloc_irq_vectors’? [-Werror=implicit-function-declaration]
  pci_free_irq_vectors(data);
  ^~~~~~~~~~~~~~~~~~~~

Make HISI_DMA depends on PCI_MSI to fix this.

Fixes: e9f08b65250d ("dmaengine: hisilicon: Add Kunpeng DMA engine support")
Signed-off-by: YueHaibing 
Link: https://lore.kernel.org/r/20200328114133.17560-1-yuehaibing@huawei.com
Signed-off-by: Vinod Koul

dmaengine: uniphier-xdmac: Add UniPhier external DMA controller driver

2020-03-02T09:24:34+00:00

This adds external DMA controller driver implemented in Socionext
UniPhier SoCs. This driver supports DMA_MEMCPY and DMA_SLAVE modes.

Since this driver does not support the the way to transfer size
unaligned to burst width, 'src_maxburst' or 'dst_maxburst' of
dma_slave_config must be 1 to transfer arbitrary size. If transfer
size is unaligned to burst size, the transfer isn't started and
the driver displays an error message.

Signed-off-by: Kunihiko Hayashi 
Link: https://lore.kernel.org/r/1582271550-3403-3-git-send-email-hayashi.kunihiko@socionext.com
Signed-off-by: Vinod Koul

dmaengine: tegra-apb: Support COMPILE_TEST

2020-02-25T06:27:34+00:00

There is nothing arch-specific in the driver's code, so let's enable
compile-testing for the driver.

Signed-off-by: Dmitry Osipenko 
Acked-by: Jon Hunter 
Link: https://lore.kernel.org/r/20200209163356.6439-18-digetx@gmail.com
Signed-off-by: Vinod Koul

dmaengine: tegra-apb: Allow to compile as a loadable kernel module

2020-02-25T06:27:34+00:00

The driver's removal was fixed by a recent commit and module load/unload
is working well now, tested on Tegra30.

Signed-off-by: Dmitry Osipenko 
Acked-by: Jon Hunter 
Link: https://lore.kernel.org/r/20200209163356.6439-16-digetx@gmail.com
Signed-off-by: Vinod Koul

dmaengine: hisilicon: Add Kunpeng DMA engine support

2020-01-24T05:48:45+00:00

This patch adds a driver for HiSilicon Kunpeng DMA engine. This DMA engine
which is an PCIe iEP offers 30 channels, each channel has a send queue, a
complete queue and an interrupt to help to do tasks. This DMA engine can do
memory copy between memory blocks or between memory and device buffer.

Signed-off-by: Zhou Wang 
Signed-off-by: Zhenfa Qiu 
Link: https://lore.kernel.org/r/1579155057-80523-1-git-send-email-wangzhou1@hisilicon.com
Signed-off-by: Vinod Koul

dmaengine: idxd: Init and probe for Intel data accelerators

2020-01-24T05:48:45+00:00

The idxd driver introduces the Intel Data Stream Accelerator [1] that will
be available on future Intel Xeon CPUs. One of the kernel access
point for the driver is through the dmaengine subsystem. It will initially
provide the DMA copy service to the kernel.

Some of the main functionality introduced with this accelerator
are: shared virtual memory (SVM) support, and descriptor submission using
Intel CPU instructions movdir64b and enqcmds. There will be additional
accelerator devices that share the same driver with variations to
capabilities.

This commit introduces the probe and initialization component of the
driver.

[1]: https://software.intel.com/en-us/download/intel-data-streaming-accelerator-preliminary-architecture-specification

Signed-off-by: Dave Jiang 
Link: https://lore.kernel.org/r/157965023991.73301.6186843973135311580.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul