diff options
Diffstat (limited to 'drivers/dma/cppi41.c')
| -rw-r--r-- | drivers/dma/cppi41.c | 39 |
1 files changed, 10 insertions, 29 deletions
diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c index b743adf56465..ceedafbd23e0 100644 --- a/drivers/dma/cppi41.c +++ b/drivers/dma/cppi41.c @@ -525,12 +525,6 @@ static struct dma_async_tx_descriptor *cppi41_dma_prep_slave_sg( return &c->txd; } -static int cpp41_cfg_chan(struct cppi41_channel *c, - struct dma_slave_config *cfg) -{ - return 0; -} - static void cppi41_compute_td_desc(struct cppi41_desc *d) { d->pd0 = DESC_TYPE_TEARD << DESC_TYPE; @@ -647,28 +641,6 @@ static int cppi41_stop_chan(struct dma_chan *chan) return 0; } -static int cppi41_dma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, - unsigned long arg) -{ - struct cppi41_channel *c = to_cpp41_chan(chan); - int ret; - - switch (cmd) { - case DMA_SLAVE_CONFIG: - ret = cpp41_cfg_chan(c, (struct dma_slave_config *) arg); - break; - - case DMA_TERMINATE_ALL: - ret = cppi41_stop_chan(chan); - break; - - default: - ret = -ENXIO; - break; - } - return ret; -} - static void cleanup_chans(struct cppi41_dd *cdd) { while (!list_empty(&cdd->ddev.channels)) { @@ -931,6 +903,11 @@ static const struct cppi_glue_infos *get_glue_info(struct device *dev) return of_id->data; } +#define CPPI41_DMA_BUSWIDTHS (BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) | \ + BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) | \ + BIT(DMA_SLAVE_BUSWIDTH_3_BYTES) | \ + BIT(DMA_SLAVE_BUSWIDTH_4_BYTES)) + static int cppi41_dma_probe(struct platform_device *pdev) { struct cppi41_dd *cdd; @@ -953,7 +930,11 @@ static int cppi41_dma_probe(struct platform_device *pdev) cdd->ddev.device_tx_status = cppi41_dma_tx_status; cdd->ddev.device_issue_pending = cppi41_dma_issue_pending; cdd->ddev.device_prep_slave_sg = cppi41_dma_prep_slave_sg; - cdd->ddev.device_control = cppi41_dma_control; + cdd->ddev.device_terminate_all = cppi41_stop_chan; + cdd->ddev.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV); + cdd->ddev.src_addr_widths = CPPI41_DMA_BUSWIDTHS; + cdd->ddev.dst_addr_widths = CPPI41_DMA_BUSWIDTHS; + cdd->ddev.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST; cdd->ddev.dev = dev; INIT_LIST_HEAD(&cdd->ddev.channels); cpp41_dma_info.dma_cap = cdd->ddev.cap_mask; |
