static inline struct mpc_dma *dma_chan_to_mpc_dma(struct dma_chan *c)
{
struct mpc_dma_chan *mchan = dma_chan_to_mpc_dma_chan(c);
+
return container_of(mchan, struct mpc_dma, channels[c->chan_id]);
}
* Execute all queued DMA descriptors.
*
* Following requirements must be met while calling mpc_dma_execute():
- * a) mchan->lock is acquired,
- * b) mchan->active list is empty,
- * c) mchan->queued list contains at least one entry.
+ * a) mchan->lock is acquired,
+ * b) mchan->active list is empty,
+ * c) mchan->queued list contains at least one entry.
*/
static void mpc_dma_execute(struct mpc_dma_chan *mchan)
{
if (es & MPC_DMA_DMAES_SAE)
dev_err(mdma->dma.dev, "- Source Address Error\n");
if (es & MPC_DMA_DMAES_SOE)
- dev_err(mdma->dma.dev, "- Source Offset"
- " Configuration Error\n");
+ dev_err(mdma->dma.dev, "- Source Offset Configuration Error\n");
if (es & MPC_DMA_DMAES_DAE)
- dev_err(mdma->dma.dev, "- Destination Address"
- " Error\n");
+ dev_err(mdma->dma.dev, "- Destination Address Error\n");
if (es & MPC_DMA_DMAES_DOE)
- dev_err(mdma->dma.dev, "- Destination Offset"
- " Configuration Error\n");
+ dev_err(mdma->dma.dev, "- Destination Offset Configuration Error\n");
if (es & MPC_DMA_DMAES_NCE)
- dev_err(mdma->dma.dev, "- NBytes/Citter"
- " Configuration Error\n");
+ dev_err(mdma->dma.dev, "- NBytes/Citter Configuration Error\n");
if (es & MPC_DMA_DMAES_SGE)
- dev_err(mdma->dma.dev, "- Scatter/Gather"
- " Configuration Error\n");
+ dev_err(mdma->dma.dev, "- Scatter/Gather Configuration Error\n");
if (es & MPC_DMA_DMAES_SBE)
dev_err(mdma->dma.dev, "- Source Bus Error\n");
if (es & MPC_DMA_DMAES_DBE)
for (i = 0; i < MPC_DMA_DESCRIPTORS; i++) {
mdesc = kzalloc(sizeof(struct mpc_dma_desc), GFP_KERNEL);
if (!mdesc) {
- dev_notice(mdma->dma.dev, "Memory allocation error. "
- "Allocated only %u descriptors\n", i);
+ dev_notice(mdma->dma.dev,
+ "Memory allocation error. Allocated only %u descriptors\n", i);
break;
}
mdma = devm_kzalloc(dev, sizeof(struct mpc_dma), GFP_KERNEL);
if (!mdma) {
- dev_err(dev, "Memory exhausted!\n");
retval = -ENOMEM;
goto err;
}
out_be32(&mdma->regs->dmaerrl, 0xFFFF);
} else {
out_be32(&mdma->regs->dmacr, MPC_DMA_DMACR_EDCG |
- MPC_DMA_DMACR_ERGA | MPC_DMA_DMACR_ERCA);
+ MPC_DMA_DMACR_ERGA |
+ MPC_DMA_DMACR_ERCA);
/* Disable hardware DMA requests */
out_be32(&mdma->regs->dmaerqh, 0);