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spi: spi-msm-geni: Propagate missing change from 4.19 to 5.4

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Propagate following change from 4.19 to 5.4 for SPI driver.
'commit 185ecd35b11f ("spi: spi-geni-qcom: Reset the dma engine on
failure")'.

Change-Id: I3839d5bc773e7d7ea71ba6ff611f55f4869000f3
Signed-off-by: Vipin Deep Kaur <vkaur@codeaurora.org>
This commit is contained in:
Vipin Deep Kaur 2020-06-30 14:20:12 +05:30
commit ce64610d0e
1 changed files with 21 additions and 3 deletions
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24
drivers/spi/spi-msm-geni.c
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@ -1106,12 +1106,30 @@ static void handle_fifo_timeout(struct spi_geni_master *mas,
"Failed to cancel/abort m_cmd\n");
}
if (mas->cur_xfer_mode == SE_DMA) {
if (xfer->tx_buf)
if (xfer->tx_buf) {
reinit_completion(&mas->xfer_done);
writel_relaxed(1, mas->base +
SE_DMA_TX_FSM_RST);
timeout =
wait_for_completion_timeout(&mas->xfer_done, HZ);
if (!timeout)
dev_err(mas->dev,
"DMA TX RESET failed\n");
geni_se_tx_dma_unprep(mas->wrapper_dev,
xfer->tx_dma, xfer->len);
if (xfer->rx_buf)
}
if (xfer->rx_buf) {
reinit_completion(&mas->xfer_done);
writel_relaxed(1, mas->base +
SE_DMA_RX_FSM_RST);
timeout =
wait_for_completion_timeout(&mas->xfer_done, HZ);
if (!timeout)
dev_err(mas->dev,
"DMA RX RESET failed\n");
geni_se_rx_dma_unprep(mas->wrapper_dev,
xfer->rx_dma, xfer->len);
xfer->rx_dma, xfer->len);
}
}
}