mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-30 06:10:56 +00:00
spi: tegra114: terminate dma and reset on transfer timeout
[ Upstream commit 32bd1a9551
]
Fixes: terminate DMA and perform controller reset on transfer timeout
to clear the FIFO's and errors.
Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
parent
2c374bbef5
commit
d911ba66b8
1 changed files with 9 additions and 0 deletions
|
@ -869,7 +869,16 @@ static int tegra_spi_transfer_one_message(struct spi_master *master,
|
|||
if (WARN_ON(ret == 0)) {
|
||||
dev_err(tspi->dev,
|
||||
"spi transfer timeout, err %d\n", ret);
|
||||
if (tspi->is_curr_dma_xfer &&
|
||||
(tspi->cur_direction & DATA_DIR_TX))
|
||||
dmaengine_terminate_all(tspi->tx_dma_chan);
|
||||
if (tspi->is_curr_dma_xfer &&
|
||||
(tspi->cur_direction & DATA_DIR_RX))
|
||||
dmaengine_terminate_all(tspi->rx_dma_chan);
|
||||
ret = -EIO;
|
||||
reset_control_assert(tspi->rst);
|
||||
udelay(2);
|
||||
reset_control_deassert(tspi->rst);
|
||||
goto complete_xfer;
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in a new issue