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spi: rockchip: terminate dma transmission when slave abort

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[ Upstream commit 80808768e4 ]

After slave abort, all DMA should be stopped, or it will affect the
next transmission and maybe abort again.

Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
Link: https://lore.kernel.org/r/20220216014028.8123-3-jon.lin@rock-chips.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jon Lin
2022-02-16 09:40:24 +08:00
committed by Greg Kroah-Hartman
parent 889254f98e
commit 8c023c3039
1 changed files with 6 additions and 0 deletions
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6
drivers/spi/spi-rockchip.c
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@@ -567,6 +567,12 @@ static int rockchip_spi_slave_abort(struct spi_controller *ctlr)
{
struct rockchip_spi *rs = spi_controller_get_devdata(ctlr);
if (atomic_read(&rs->state) & RXDMA)
dmaengine_terminate_sync(ctlr->dma_rx);
if (atomic_read(&rs->state) & TXDMA)
dmaengine_terminate_sync(ctlr->dma_tx);
atomic_set(&rs->state, 0);
spi_enable_chip(rs, false);
rs->slave_abort = true;
complete(&ctlr->xfer_completion);