diff options
Diffstat (limited to 'drivers/dma/imx-sdma.c')
| -rw-r--r-- | drivers/dma/imx-sdma.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 91774039ae5d..4f8d8f5e1132 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -335,7 +335,7 @@ struct sdma_desc { * @sdma: pointer to the SDMA engine for this channel * @channel: the channel number, matches dmaengine chan_id + 1 * @direction: transfer type. Needed for setting SDMA script - * @slave_config Slave configuration + * @slave_config: Slave configuration * @peripheral_type: Peripheral type. Needed for setting SDMA script * @event_id0: aka dma request line * @event_id1: for channels that use 2 events @@ -354,8 +354,10 @@ struct sdma_desc { * @shp_addr: value for gReg[6] * @per_addr: value for gReg[2] * @status: status of dma channel + * @context_loaded: ensure context is only loaded once * @data: specific sdma interface structure * @bd_pool: dma_pool for bd + * @terminate_worker: used to call back into terminate work function */ struct sdma_channel { struct virt_dma_chan vc; @@ -1331,8 +1333,7 @@ static void sdma_free_chan_resources(struct dma_chan *chan) sdma_channel_synchronize(chan); - if (sdmac->event_id0 >= 0) - sdma_event_disable(sdmac, sdmac->event_id0); + sdma_event_disable(sdmac, sdmac->event_id0); if (sdmac->event_id1) sdma_event_disable(sdmac, sdmac->event_id1); @@ -1632,11 +1633,9 @@ static int sdma_config(struct dma_chan *chan, memcpy(&sdmac->slave_config, dmaengine_cfg, sizeof(*dmaengine_cfg)); /* Set ENBLn earlier to make sure dma request triggered after that */ - if (sdmac->event_id0 >= 0) { - if (sdmac->event_id0 >= sdmac->sdma->drvdata->num_events) - return -EINVAL; - sdma_event_enable(sdmac, sdmac->event_id0); - } + if (sdmac->event_id0 >= sdmac->sdma->drvdata->num_events) + return -EINVAL; + sdma_event_enable(sdmac, sdmac->event_id0); if (sdmac->event_id1) { if (sdmac->event_id1 >= sdmac->sdma->drvdata->num_events) |