diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/dma/ste_dma40.c | 107 | ||||
| -rw-r--r-- | drivers/dma/ste_dma40_ll.c | 2 | ||||
| -rw-r--r-- | drivers/dma/ste_dma40_ll.h | 11 |
3 files changed, 10 insertions, 110 deletions
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index bd72269dac08..0a20179349b0 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -1863,108 +1863,19 @@ static struct dma_async_tx_descriptor *d40_prep_memcpy(struct dma_chan *chan, size_t size, unsigned long dma_flags) { - struct d40_desc *d40d; - struct d40_chan *d40c = container_of(chan, struct d40_chan, - chan); - unsigned long flags; - - if (d40c->phy_chan == NULL) { - chan_err(d40c, "Channel is not allocated.\n"); - return ERR_PTR(-EINVAL); - } - - spin_lock_irqsave(&d40c->lock, flags); - d40d = d40_desc_get(d40c); - - if (d40d == NULL) { - chan_err(d40c, "Descriptor is NULL\n"); - goto err; - } - - d40d->txd.flags = dma_flags; - d40d->lli_len = d40_size_2_dmalen(size, - d40c->dma_cfg.src_info.data_width, - d40c->dma_cfg.dst_info.data_width); - if (d40d->lli_len < 0) { - chan_err(d40c, "Unaligned size\n"); - goto err; - } - - - dma_async_tx_descriptor_init(&d40d->txd, chan); - - d40d->txd.tx_submit = d40_tx_submit; - - if (chan_is_logical(d40c)) { - - if (d40_pool_lli_alloc(d40c,d40d, d40d->lli_len, true) < 0) { - chan_err(d40c, "Out of memory\n"); - goto err; - } - d40d->lli_current = 0; - - if (d40_log_buf_to_lli(d40d->lli_log.src, - src, - size, - d40c->log_def.lcsp1, - d40c->dma_cfg.src_info.data_width, - d40c->dma_cfg.dst_info.data_width, - true) == NULL) - goto err; - - if (d40_log_buf_to_lli(d40d->lli_log.dst, - dst, - size, - d40c->log_def.lcsp3, - d40c->dma_cfg.dst_info.data_width, - d40c->dma_cfg.src_info.data_width, - true) == NULL) - goto err; - - } else { - - if (d40_pool_lli_alloc(d40c, d40d, d40d->lli_len, false) < 0) { - chan_err(d40c, "Out of memory\n"); - goto err; - } - - if (d40_phy_buf_to_lli(d40d->lli_phy.src, - src, - size, - d40c->dma_cfg.src_info.psize, - 0, - d40c->src_def_cfg, - true, - d40c->dma_cfg.src_info.data_width, - d40c->dma_cfg.dst_info.data_width, - false) == NULL) - goto err; + struct scatterlist dst_sg; + struct scatterlist src_sg; - if (d40_phy_buf_to_lli(d40d->lli_phy.dst, - dst, - size, - d40c->dma_cfg.dst_info.psize, - 0, - d40c->dst_def_cfg, - true, - d40c->dma_cfg.dst_info.data_width, - d40c->dma_cfg.src_info.data_width, - false) == NULL) - goto err; + sg_init_table(&dst_sg, 1); + sg_init_table(&src_sg, 1); - dma_sync_single_for_device(d40c->base->dev, - d40d->lli_pool.dma_addr, - d40d->lli_pool.size, DMA_TO_DEVICE); - } + sg_dma_address(&dst_sg) = dst; + sg_dma_address(&src_sg) = src; - spin_unlock_irqrestore(&d40c->lock, flags); - return &d40d->txd; + sg_dma_len(&dst_sg) = size; + sg_dma_len(&src_sg) = size; -err: - if (d40d) - d40_desc_free(d40c, d40d); - spin_unlock_irqrestore(&d40c->lock, flags); - return NULL; + return stedma40_memcpy_sg(chan, &dst_sg, &src_sg, 1, dma_flags); } static struct dma_async_tx_descriptor * diff --git a/drivers/dma/ste_dma40_ll.c b/drivers/dma/ste_dma40_ll.c index 6f03f580c492..552c5972c75e 100644 --- a/drivers/dma/ste_dma40_ll.c +++ b/drivers/dma/ste_dma40_ll.c @@ -198,7 +198,7 @@ static int d40_seg_size(int size, int data_width1, int data_width2) return seg_max; } -struct d40_phy_lli *d40_phy_buf_to_lli(struct d40_phy_lli *lli, +static struct d40_phy_lli *d40_phy_buf_to_lli(struct d40_phy_lli *lli, dma_addr_t addr, u32 size, int psize, diff --git a/drivers/dma/ste_dma40_ll.h b/drivers/dma/ste_dma40_ll.h index e93f394187a3..a5d71714ebf7 100644 --- a/drivers/dma/ste_dma40_ll.h +++ b/drivers/dma/ste_dma40_ll.h @@ -312,17 +312,6 @@ int d40_phy_sg_to_lli(struct scatterlist *sg, u32 data_width2, int psize); -struct d40_phy_lli *d40_phy_buf_to_lli(struct d40_phy_lli *lli, - dma_addr_t data, - u32 data_size, - int psize, - dma_addr_t next_lli, - u32 reg_cfg, - bool term_int, - u32 data_width1, - u32 data_width2, - bool is_device); - void d40_phy_lli_write(void __iomem *virtbase, u32 phy_chan_num, struct d40_phy_lli *lli_dst, |