On Intel Elkhart Lake the DMA controllers can be provided by Intel® PSE
(Programmable Services Engine) and exposed either as PCI or ACPI devices.
To support both schemes here is a patch series.
First two patches fixes minor issues in DMA ACPI layer, patches 3-5 enables
Intel Elkhart Lake DMA controllers that exposed as ACPI devices, patch 6 is
clean up, patch 7 is fix for possible race on ->remove() stage, patch 8 is
follow up clean up and patches 9-10 is a split for better maintenance.
Changelog v2:
- spell correctly Intel® PSE in the code and commit messages (Jarkko)
- drop couple of not needed right now patches against DMA ACPI layer
Andy Shevchenko (10):
dmaengine: acpi: Set up DMA mask based on CSRT
dmaengine: acpi: Add kernel doc parameter descriptions
dmaengine: dw: Export struct dw_dma_chip_pdata for wider use
dmaengine: dw: platform: Use struct dw_dma_chip_pdata
dmaengine: dw: platform: Enable iDMA 32-bit on Intel Elkhart Lake
dmaengine: dw: platform: Use devm_platform_ioremap_resource()
dmaengine: dw: platform: Switch to acpi_dma_controller_register()
dmaengine: dw: platform: Move handle check to
dw_dma_acpi_controller_register()
dmaengine: dw: platform: Split ACPI helpers to separate module
dmaengine: dw: platform: Split OF helpers to separate module
drivers/dma/acpi-dma.c | 12 ++-
drivers/dma/dw/Makefile | 4 +-
drivers/dma/dw/acpi.c | 53 +++++++++
drivers/dma/dw/internal.h | 51 +++++++++
drivers/dma/dw/of.c | 131 ++++++++++++++++++++++
drivers/dma/dw/pci.c | 60 +++--------
drivers/dma/dw/platform.c | 221 +++++++++-----------------------------
7 files changed, 312 insertions(+), 220 deletions(-)
create mode 100644 drivers/dma/dw/acpi.c
create mode 100644 drivers/dma/dw/of.c
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2.23.0.rc1
