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Revert "i2c: tegra: Synchronize DMA before termination" 

This reverts commit 8814044fe0 because
regressions were showing up.

Suggested-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/dmaengine/20200319201140.17451-1-digetx@gmail.com/
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Wolfram Sang 2020-04-27 10:48:22 +02:00
parent 068143a819
commit deb821ffe2
1 changed files with 0 additions and 9 deletions
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9
drivers/i2c/busses/i2c-tegra.c
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@ -1219,15 +1219,6 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
time_left = tegra_i2c_wait_completion_timeout(
i2c_dev, &i2c_dev->dma_complete, xfer_time);
/*
* Synchronize DMA first, since dmaengine_terminate_sync()
* performs synchronization after the transfer's termination
* and we want to get a completion if transfer succeeded.
*/
dmaengine_synchronize(i2c_dev->msg_read ?
i2c_dev->rx_dma_chan :
i2c_dev->tx_dma_chan);
dmaengine_terminate_sync(i2c_dev->msg_read ?
i2c_dev->rx_dma_chan :
i2c_dev->tx_dma_chan);