By adding this function, slave device can query quirks from pl330 if they need special settings for dmaengine.
Signed-off-by: Shawn Lin shawn.lin@rock-chips.com ---
Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None Changes in v1: None
drivers/dma/pl330.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 3b9b426..bf01d24 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -2156,6 +2156,14 @@ static int pl330_config(struct dma_chan *chan, return 0; }
+static int pl330_quirks(struct dma_chan *chan) +{ + struct dma_pl330_chan *pch = to_pchan(chan); + struct pl330_dmac *pl330 = pch->dmac; + + return pl330->quirks; +} + static int pl330_terminate_all(struct dma_chan *chan) { struct dma_pl330_chan *pch = to_pchan(chan); @@ -2928,6 +2936,7 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id) pd->device_tx_status = pl330_tx_status; pd->device_prep_slave_sg = pl330_prep_slave_sg; pd->device_config = pl330_config; + pd->device_get_quirks = pl330_quirks; pd->device_pause = pl330_pause; pd->device_terminate_all = pl330_terminate_all; pd->device_issue_pending = pl330_issue_pending;