Skip to content
Snippets Groups Projects
Commit 8c023c30 authored by Jon Lin's avatar Jon Lin Committed by Greg Kroah-Hartman
Browse files

spi: rockchip: terminate dma transmission when slave abort


[ Upstream commit 80808768e41324d2e23de89972b5406c1020e6e4 ]

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>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 889254f9
No related branches found
No related tags found
No related merge requests found
......@@ -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);
......
0% Loading or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment