diff options
Diffstat (limited to 'arch/arm/common/edma.c')
| -rw-r--r-- | arch/arm/common/edma.c | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/arch/arm/common/edma.c b/arch/arm/common/edma.c index 0b37f7734d0f..25fa735abc6c 100644 --- a/arch/arm/common/edma.c +++ b/arch/arm/common/edma.c @@ -994,29 +994,23 @@ void edma_set_dest(unsigned slot, dma_addr_t dest_port, EXPORT_SYMBOL(edma_set_dest); /** - * edma_get_position - returns the current transfer points + * edma_get_position - returns the current transfer point * @slot: parameter RAM slot being examined - * @src: pointer to source port position - * @dst: pointer to destination port position + * @dst: true selects the dest position, false the source * - * Returns current source and destination addresses for a particular - * parameter RAM slot. Its channel should not be active when this is called. + * Returns the position of the current active slot */ -void edma_get_position(unsigned slot, dma_addr_t *src, dma_addr_t *dst) +dma_addr_t edma_get_position(unsigned slot, bool dst) { - struct edmacc_param temp; - unsigned ctlr; + u32 offs, ctlr = EDMA_CTLR(slot); - ctlr = EDMA_CTLR(slot); slot = EDMA_CHAN_SLOT(slot); - edma_read_slot(EDMA_CTLR_CHAN(ctlr, slot), &temp); - if (src != NULL) - *src = temp.src; - if (dst != NULL) - *dst = temp.dst; + offs = PARM_OFFSET(slot); + offs += dst ? PARM_DST : PARM_SRC; + + return edma_read(ctlr, offs); } -EXPORT_SYMBOL(edma_get_position); /** * edma_set_src_index - configure DMA source address indexing |