diff options
author | Robin Reckmann <robin.reckmann@googlemail.com> | 2022-08-07 17:04:54 +0300 |
---|---|---|
committer | Wolfram Sang <wsa@kernel.org> | 2022-08-11 15:13:51 +0300 |
commit | 8689b80b22dbf1f5e993233370fe57f08731b14d (patch) | |
tree | 6b15552697e09f845124b65585c403d19f6016f9 /Documentation/devicetree | |
parent | ffcf9c5700e49c0aee42dcba9a12ba21338e8136 (diff) | |
download | linux-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>
Diffstat (limited to 'Documentation/devicetree')
0 files changed, 0 insertions, 0 deletions