[PATCH v6 0/4] Add DMA driver for StarFive JH7110 SoC

Walker Chen
2023-03-22T09:49:39Z

Hello,

This patch series adds dma support for the StarFive JH7110 RISC-V
SoC. The first patch adds device tree binding. The second patch includes
dma driver. The last patch adds device node of dma to JH7110 dts.

The series has been tested on the VisionFive 2 board which equip with
JH7110 SoC and works normally.

The last patch should be applied after the following patchset:
https://lore.kernel.org/all/20230314124404.117592-1-xingyu.wu@starfivetech.com/

Changes since v5:
- Modified polling time to DMA transmission completion status. Submit a
separate patch for this change.

Changes since v4:
- Rebased on Linux 6.3-rc1.
- Added description for reset items in the dt-binding.
- Simplified the usage of match data.

Changes since v3:
- Constrain the minItems of resets to 2 for jh7110 dma in the
dt-binding.
- Replaced all uses of of_device_is_compatible with of_device_get_match_data.
- Moved the definition of struct axi_dma_chip_config to dw-axi-dmac-platform.c

Changes since v2:
- Added minItems with value 1 and changed the maxItems' value to 2 about
resets properties in the dt-binding.
- Added match data for jh7110-axi-dma and executed reset call to match
data.
- Dropped reset-names from dma node of device tree.

Changes since v1:
- Rebased on Linux 6.2.
- Changed the compatible string to SoC specific and dropped '-rst' from
reset-names in the dt-binding.
- Dropped 'snps,num-hs-if' in the dt-binding.
- Use different configuration on CH_CFG registers according to the compatible string.

---
v5: https://lore.kernel.org/all/20230314083537.22571-1-walker.chen@starfivetech.com/
v4: https://lore.kernel.org/all/20230306140430.28951-1-walker.chen@starfivetech.com/
v3: https://lore.kernel.org/all/20230227131042.16125-1-walker.chen@starfivetech.com/
v2: https://lore.kernel.org/all/20230221140424.719-1-walker.chen@starfivetech.com/
v1: https://lore.kernel.org/all/20230206113811.23133-1-walker.chen@starfivetech.com/

Walker Chen (4):
dt-bindings: dma: snps,dw-axi-dmac: constrain the items of resets for
JH7110 dma
dmaengine: dw-axi-dmac: Add support for StarFive JH7110 DMA
dmaengine: dw-axi-dmac: Increase polling time to DMA transmission
completion status
riscv: dts: starfive: add dma controller node

.../bindings/dma/snps,dw-axi-dmac.yaml | 23 ++++++++++-
arch/riscv/boot/dts/starfive/jh7110.dtsi | 18 +++++++++
.../dma/dw-axi-dmac/dw-axi-dmac-platform.c | 40 ++++++++++++++++---
drivers/dma/dw-axi-dmac/dw-axi-dmac.h | 1 +
4 files changed, 75 insertions(+), 7 deletions(-)

base-commit: fe15c26ee26efa11741a7b632e9f23b01aca4cc6
prerequisite-patch-id: c3a6b87df79b338fc97766406d010fedb79ab428
prerequisite-patch-id: b49509523cf7c098f684647bdc4fdaece48b61bc
prerequisite-patch-id: 46cc850aa0e9e03ccf5ed23d8458babfca3d71af
prerequisite-patch-id: a6975e61ee5803fbd74b1c21ab925fd81c3c0eab
prerequisite-patch-id: ac150a8c622e858e088df8121093d448df49c245
prerequisite-patch-id: 044263ef2fb9f1e5a586edbf85d5f67814a28430
prerequisite-patch-id: 89f049f951e5acf75aab92541992f816fd0acc0d
prerequisite-patch-id: 9f3dbc9073eee89134e68977e941e457593c2757
prerequisite-patch-id: 8600b156a235be2b3db53be3f834e7a370e2cfb9
prerequisite-patch-id: 1b2d0982b18da060c82134f05bf3ce16425bac8d
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prerequisite-patch-id: 2d9e4f185631549094b6136cf8717a507b68c5bb
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prerequisite-patch-id: 584c256c9acb52ee2773d0c81c3f4977fc18155a
prerequisite-patch-id: 2bc43b375b470f7e8bbe937b78678ba3856e3b8f
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2.17.1