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authorRobin Reckmann <robin.reckmann@googlemail.com>2022-08-07 17:04:54 +0300
committerWolfram Sang <wsa@kernel.org>2022-08-11 15:13:51 +0300
commit8689b80b22dbf1f5e993233370fe57f08731b14d (patch)
tree6b15552697e09f845124b65585c403d19f6016f9 /Documentation/devicetree
parentffcf9c5700e49c0aee42dcba9a12ba21338e8136 (diff)
downloadlinux-8689b80b22dbf1f5e993233370fe57f08731b14d.tar.xz
i2c: qcom-geni: Fix GPI DMA buffer sync-back
Fix i2c transfers using GPI DMA mode for all message types that do not set the I2C_M_DMA_SAFE flag (e.g. SMBus "read byte"). In this case a bounce buffer is returned by i2c_get_dma_safe_msg_buf(), and it has to synced back to the message after the transfer is done. Add missing assignment of dma buffer in geni_i2c_gpi(). Set xferred in i2c_put_dma_safe_msg_buf() to true in case of no error to ensure the sync-back of this dma buffer to the message. Fixes: d8703554f4de ("i2c: qcom-geni: Add support for GPI DMA") Signed-off-by: Robin Reckmann <robin.reckmann@gmail.com> Tested-by: Luca Weiss <luca.weiss@fairphone.com> Tested-by: Caleb Connolly <caleb@connolly.tech> Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org> Signed-off-by: Wolfram Sang <wsa@kernel.org>
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