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Date:   Wed, 30 Dec 2020 14:54:45 +0530
From:   Akash Asthana <>
To:     Roja Rani Yarubandi <>,
Subject: Re: [PATCH V7 1/2] i2c: i2c-qcom-geni: Store DMA mapping data in
 geni_i2c_dev struct

On 12/21/2020 6:08 PM, Roja Rani Yarubandi wrote:
> Store DMA mapping data in geni_i2c_dev struct to enhance DMA mapping
> data scope. For example during shutdown callback to unmap DMA mapping,
> this stored DMA mapping data can be used to call geni_se_tx_dma_unprep
> and geni_se_rx_dma_unprep functions.
> Add two helper functions geni_i2c_rx_msg_cleanup and
> geni_i2c_tx_msg_cleanup to unwrap the things after rx/tx FIFO/DMA
> transfers, so that the same can be used in geni_i2c_stop_xfer()
> function during shutdown callback.
> Signed-off-by: Roja Rani Yarubandi <>
Reviewed-by: Akash Asthana <>

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