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(parent: 8b4fc24) | patch
i2c: at91: use dma safe buffers
authorMichael Walle <michael@walle.cc>
Thu, 7 Apr 2022 15:08:28 +0000 (17:08 +0200)
committerWolfram Sang <wsa@kernel.org>
Wed, 4 May 2022 20:24:14 +0000 (22:24 +0200)
commit03fbb903c8bf7e53e101e8d9a7b261264317c411
treedfc321d3e180fda445ca08076119e12a2b9a6a1btree | snapshot
parent8b4fc246c3fffde96835b2f6d5d0e2a56c70d8f9commit | diff
i2c: at91: use dma safe buffers

The supplied buffer might be on the stack and we get the following error
message:
[    3.312058] at91_i2c e0070600.i2c: rejecting DMA map of vmalloc memory

Use i2c_{get,put}_dma_safe_msg_buf() to get a DMA-able memory region if
necessary.

Fixes: 60937b2cdbf9 ("i2c: at91: add dma support")
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
drivers/i2c/busses/i2c-at91-master.c diff | blob | history
Domain: System / Kernel;