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| author | Wolfram Sang <wsa@the-dreams.de> | 2020-04-27 10:48:22 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2020-04-28 13:31:16 +0200 |
| commit | deb821ffe293b12288b2bf20a75adb50f710273f (patch) | |
| tree | 8dba434a71afca1112eff8a98a7b7b9401cd3c3b /drivers | |
| parent | 068143a8195fb0fdeea1f3ca430b3db0f6d04a53 (diff) | |
| download | linux-deb821ffe293b12288b2bf20a75adb50f710273f.tar.bz2 | |
Revert "i2c: tegra: Synchronize DMA before termination"
This reverts commit 8814044fe0fa182abc9ff818d3da562de98bc9a7 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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/i2c/busses/i2c-tegra.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 8280ac7cc1b7..a795b4e278b1 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -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); |