Add Qualcomm ADM dmaengine driver
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- v6 Latest2 patches 4 repliesIn review
- v52 patches 0 repliesSuperseded
- v42 patches 4 repliesSuperseded
Earlier versions · 4
| Version | Posted | Patches | Replies | Status |
|---|---|---|---|---|
| v3 | 2 patches | 2 replies | Superseded | |
| v2 | 2 patches | 7 replies | Superseded | |
| v1 posting 2/2 | 2 patches | 4 replies | Applied | |
| v1 posting 1/2 | 2 patches | 0 replies | Superseded |
Changes in v6 from the cover letter
- Fix erroneous adm_get_blksize for values of 192 and 256.
Patches in v6 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | dt/bindings: qcom_adm: Fix channel specifiersDocumentation/ | +6 | 0 replies | |
| 2/2 | dmaengine: Add ADM driverdrivers/ drivers/ drivers/ | +911 | 3 replies |
Reviews trailers per patch
1 of 2 patches has a Reviewed-by or Acked-by.
| Patch | sricharan |
|---|---|
| 1/2 | |
| 2/2 | R-b |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [Patch v6 0/2] Add Qualcomm ADM dmaengine driver
This patch set introduces the dmaengine driver for the Qualcomm Application Data Mover (ADM) DMA controller present on MSM8x60, APQ8064, and IPQ8064 devices.
The initial version of this driver will only support slave DMA operations between system memory and peripherals. Flow control via the CRCI (client rate control interface) is supported and can be configured via device tree configuration. Flow control usage is required for some peripheral devices.
Changes from v5:
- Fix erroneous adm_get_blksize for values of 192 and 256.
Changes from v4:
- Fixed copyright date
- Fixed error in EE offsets and usage
- Changed namespace for registers and fields to ADM specific naming
- Removed alloc_chan function
- Removed control function and fixed up terminate_all and slave_config
- Reworked descriptor processing code to make it more clean
- Moved to use of_dma_xlate_by_chan_id
- Fixed other small review comments
Changes from v3:
- Remove .owner field
Changes from v2:
- Removed extraneous achan variable from xlate function
- Reworked crci check in slave_sg function
- Added mux field to async_desc structure.
- Reworked dma start function to use crci and mux values directly from structure.
- Added disable of clocks in probe error paths.
- Changed to use #define for fixed number of channels.
Changes since v1:
- Fixed various review comments
- Fixed some descriptor programming issues.
- Added single descriptors to support sub burst length transactions. Selection of single or box descriptors depends on the sg length and burst size.
- Removed use of crci in the dmas property. CRCI is now designated via the slave_config structure and will be stored in slave_id.
Andy Gross (2):
dt/bindings: qcom_adm: Fix channel specifiers
dmaengine: Add ADM driver
Documentation/devicetree/bindings/dma/qcom_adm.txt | 16 +- drivers/dma/Kconfig | 10 + drivers/dma/Makefile | 1 + drivers/dma/qcom_adm.c | 900 ++++++++++++++++++++ 4 files changed, 917 insertions(+), 10 deletions(-) create mode 100644 drivers/dma/qcom_adm.c
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