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spi: atmel: Fix PDC transfer setup bug

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atmel_spi_dma_map_xfer to never be called in PDC mode. This causes the
driver to silently fail.

This patch changes the conditional to match the behaviour of the
previous commit before the refactor.

Fixes: 5fa5e6dec7 ("spi: atmel: Switch to transfer_one transfer method")
Signed-off-by: Ville Baillie <villeb@bytesnap.co.uk>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210921072132.21831-1-villeb@bytesnap.co.uk
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Ville Baillie 2021-09-21 07:21:32 +00:00 committed by Mark Brown
parent 59c4e190b1
commit 75e33c55ae
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GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 2 deletions
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4
drivers/spi/spi-atmel.c
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@ -1301,7 +1301,7 @@ static int atmel_spi_one_transfer(struct spi_master *master,
* DMA map early, for performance (empties dcache ASAP) and * DMA map early, for performance (empties dcache ASAP) and
* better fault reporting. * better fault reporting.
*/ */
if ((!master->cur_msg_mapped) if ((!master->cur_msg->is_dma_mapped)
&& as->use_pdc) { && as->use_pdc) {
if (atmel_spi_dma_map_xfer(as, xfer) < 0) if (atmel_spi_dma_map_xfer(as, xfer) < 0)
return -ENOMEM; return -ENOMEM;
@ -1381,7 +1381,7 @@ static int atmel_spi_one_transfer(struct spi_master *master,
} }
} }
if (!master->cur_msg_mapped if (!master->cur_msg->is_dma_mapped
&& as->use_pdc) && as->use_pdc)
atmel_spi_dma_unmap_xfer(master, xfer); atmel_spi_dma_unmap_xfer(master, xfer);