[PATCH 2/4] DMA: PL330: Register the DMA controller with the generic DMA helpers

[Padmavathi Venna]

This patch registers the pl330 dma controller driver with the generic
device tree dma helper functions.

Signed-off-by: Padmavathi Venna <padma.v at samsung.com>
---
 drivers/dma/pl330.c |   20 ++++++++++++++++++++
 1 files changed, 20 insertions(+), 0 deletions(-)

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index b0a9080..b80ef97 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2874,6 +2874,7 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 	struct dma_pl330_platdata *pdat;
 	struct dma_pl330_dmac *pdmac;
 	struct dma_pl330_chan *pch;
+	struct of_dma_filter_info *pfi;
 	struct pl330_info *pi;
 	struct dma_device *pd;
 	struct resource *res;
@@ -2990,6 +2991,23 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 		pi->pcfg.data_bus_width / 8, pi->pcfg.num_chan,
 		pi->pcfg.num_peri, pi->pcfg.num_events);
 
+	pfi = devm_kzalloc(&adev->dev, sizeof(*pfi), GFP_KERNEL);
+	if (!pfi) {
+		dev_err(&adev->dev, "unable to allocate mem\n");
+		return -ENOMEM;
+	}
+
+	pfi->dma_cap = pd->cap_mask;
+	pfi->filter_fn = pl330_filter;
+
+	ret = of_dma_controller_register(adev->dev.of_node,
+					 of_dma_pl330_xlate, pfi);
+	if (ret) {
+		dev_err(&adev->dev, "unable to register DMA to the\
+					generic DT DMA helpers\n");
+		goto probe_err2;
+	}
+
 	return 0;
 
 probe_err4:
@@ -3016,6 +3034,8 @@ static int pl330_remove(struct amba_device *adev)
 	if (!pdmac)
 		return 0;
 
+	of_dma_controller_free(adev->dev.of_node);
+
 	amba_set_drvdata(adev, NULL);
 
 	/* Idle the DMAC */
-- 
1.7.4.4