[PATCH] i2c: qcom-geni: Fix GPI DMA buffer sync-back

[Wolfram Sang]

On Sun, Aug 07, 2022 at 11:04:54PM +0900, Robin Reckmann wrote:
> 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.
> 
> Signed-off-by: Robin Reckmann <robin.reckmann at gmail.com>

Thank you! What would be a Fixes tag for this?

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