[v4,07/10] DMA: pl330: implement dmaengine_get_quirks hook

Commit Message

Shawn Lin Sept. 6, 2015, 1:12 a.m. UTC

By adding this function, slave device can query quirks
from pl330 if they need special settings for dmaengine.

Signed-off-by: Shawn Lin <[e-mail]>
---

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(+)

Patch

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;