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| author | Jon Lin <jon.lin@rock-chips.com> | 2022-02-16 09:40:24 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-02-17 15:33:18 +0000 |
| commit | 80808768e41324d2e23de89972b5406c1020e6e4 (patch) | |
| tree | 46f3ccdaf55871127bd376ca61e77fdc3adea4d3 /drivers/spi | |
| parent | 9382df0a98aad5bbcd4d634790305a1d786ad224 (diff) | |
| download | linux-80808768e41324d2e23de89972b5406c1020e6e4.tar.gz linux-80808768e41324d2e23de89972b5406c1020e6e4.tar.bz2 linux-80808768e41324d2e23de89972b5406c1020e6e4.zip | |
spi: rockchip: terminate dma transmission when slave abort
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>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-rockchip.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c index 4f65ba3dd19c..c6a1bb09be05 100644 --- a/drivers/spi/spi-rockchip.c +++ b/drivers/spi/spi-rockchip.c @@ -585,6 +585,12 @@ 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; spi_finalize_current_transfer(ctlr); |