diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/spi-dw-mid.c | 13 | ||||
| -rw-r--r-- | drivers/spi/spi-dw.c | 3 | ||||
| -rw-r--r-- | drivers/spi/spi-dw.h | 1 |
3 files changed, 17 insertions, 0 deletions
diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c index 3729cdd84e94..e614190daef6 100644 --- a/drivers/spi/spi-dw-mid.c +++ b/drivers/spi/spi-dw-mid.c @@ -270,11 +270,24 @@ static int mid_spi_dma_transfer(struct dw_spi *dws) return 0; } +static void mid_spi_dma_stop(struct dw_spi *dws) +{ + if (test_bit(TX_BUSY, &dws->dma_chan_busy)) { + dmaengine_terminate_all(dws->txchan); + clear_bit(TX_BUSY, &dws->dma_chan_busy); + } + if (test_bit(RX_BUSY, &dws->dma_chan_busy)) { + dmaengine_terminate_all(dws->rxchan); + clear_bit(RX_BUSY, &dws->dma_chan_busy); + } +} + static struct dw_spi_dma_ops mid_dma_ops = { .dma_init = mid_spi_dma_init, .dma_exit = mid_spi_dma_exit, .dma_setup = mid_spi_dma_setup, .dma_transfer = mid_spi_dma_transfer, + .dma_stop = mid_spi_dma_stop, }; #endif diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c index c7c2fcc2b58e..d53cffe7ff22 100644 --- a/drivers/spi/spi-dw.c +++ b/drivers/spi/spi-dw.c @@ -432,6 +432,9 @@ static void dw_spi_handle_err(struct spi_master *master, { struct dw_spi *dws = spi_master_get_devdata(master); + if (dws->dma_mapped) + dws->dma_ops->dma_stop(dws); + spi_reset_chip(dws); } diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h index 7351692494ec..7f130bd8f37a 100644 --- a/drivers/spi/spi-dw.h +++ b/drivers/spi/spi-dw.h @@ -93,6 +93,7 @@ struct dw_spi_dma_ops { void (*dma_exit)(struct dw_spi *dws); int (*dma_setup)(struct dw_spi *dws); int (*dma_transfer)(struct dw_spi *dws); + void (*dma_stop)(struct dw_spi *dws); }; struct dw_spi { |