diff options
| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2020-12-08 11:04:24 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-12-11 21:20:08 +0530 |
| commit | 426506a7e0f1902268c3edbdc7e5475624a9d18b (patch) | |
| tree | baa00623a22ee6e14644c89e8b9a342523c66292 /drivers/dma/ti/k3-udma-glue.c | |
| parent | 1609c15a20b8e0c1adc2a26ad81fd7e2b968f81a (diff) | |
dmaengine: ti: k3-udma-glue: Add function to get device pointer for DMA API
Glue layer users should use the device of the DMA for DMA mapping and
allocations as it is the DMA which accesses to descriptors and buffers,
not the clients
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Link: https://lore.kernel.org/r/20201208090440.31792-5-peter.ujfalusi@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/ti/k3-udma-glue.c')
| -rw-r--r-- | drivers/dma/ti/k3-udma-glue.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/dma/ti/k3-udma-glue.c b/drivers/dma/ti/k3-udma-glue.c index dfb65e382ab9..29d1524d1916 100644 --- a/drivers/dma/ti/k3-udma-glue.c +++ b/drivers/dma/ti/k3-udma-glue.c @@ -493,6 +493,13 @@ int k3_udma_glue_tx_get_irq(struct k3_udma_glue_tx_channel *tx_chn) } EXPORT_SYMBOL_GPL(k3_udma_glue_tx_get_irq); +struct device * + k3_udma_glue_tx_get_dma_device(struct k3_udma_glue_tx_channel *tx_chn) +{ + return xudma_get_device(tx_chn->common.udmax); +} +EXPORT_SYMBOL_GPL(k3_udma_glue_tx_get_dma_device); + static int k3_udma_glue_cfg_rx_chn(struct k3_udma_glue_rx_channel *rx_chn) { const struct udma_tisci_rm *tisci_rm = rx_chn->common.tisci_rm; @@ -1201,3 +1208,10 @@ int k3_udma_glue_rx_get_irq(struct k3_udma_glue_rx_channel *rx_chn, return flow->virq; } EXPORT_SYMBOL_GPL(k3_udma_glue_rx_get_irq); + +struct device * + k3_udma_glue_rx_get_dma_device(struct k3_udma_glue_rx_channel *rx_chn) +{ + return xudma_get_device(rx_chn->common.udmax); +} +EXPORT_SYMBOL_GPL(k3_udma_glue_rx_get_dma_device); |