[PATCH v3 0/3] Fix STM32 I2C dma operations
From: Clément Le Goffic
Date: Mon Jun 30 2025 - 08:58:49 EST
This patch series aims to fix some issues inside the driver's DMA
handling.
It also uses newer I2C DMA API.
Signed-off-by: Clément Le Goffic <clement.legoffic@xxxxxxxxxxx>
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Changes in v3:
- Add Alain Volmat's "Acked-by" on patch 1 and 2
- Link to v2: https://lore.kernel.org/r/20250627-i2c-upstream-v2-0-8c14523481dc@xxxxxxxxxxx
Changes in v2:
- Fix the dev used in dma_unmap also in the error path of
`stm32_i2c_prep_dma_xfer`
- Add a dma_unmap_single also in the ITs error handler
- Add Alain Volmat's "Acked-by" on patch 3
- Link to v1: https://lore.kernel.org/r/20250616-i2c-upstream-v1-0-42d3d5374e65@xxxxxxxxxxx
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Clément Le Goffic (3):
i2c: stm32: fix the device used for the DMA map
i2c: stm32f7: unmap DMA mapped buffer
i2c: stm32f7: support i2c_*_dma_safe_msg_buf APIs
drivers/i2c/busses/i2c-stm32.c | 4 ++--
drivers/i2c/busses/i2c-stm32f7.c | 42 +++++++++++++++++++++++++++++-----------
2 files changed, 33 insertions(+), 13 deletions(-)
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base-commit: d0b3b7b22dfa1f4b515fd3a295b3fd958f9e81af
change-id: 20250527-i2c-upstream-e5b69501359a
Best regards,
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Clément Le Goffic <clement.legoffic@xxxxxxxxxxx>