Unverified Commit 80808768 authored by Jon Lin's avatar Jon Lin Committed by Mark Brown
Browse files

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: default avatarJon Lin <jon.lin@rock-chips.com>
Link: https://lore.kernel.org/r/20220216014028.8123-3-jon.lin@rock-chips.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 9382df0a

drivers/spi/spi-rockchip.c

+6 −0
Original line number Diff line number Diff line
@@ -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);