From: Misael Lopez Cruz <misael.lopez@xxxxxx>
In preparation for supporting multiple DMA crossbar instances,
make the idr xbar instance specific.
Signed-off-by: Misael Lopez Cruz <misael.lopez@xxxxxx>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
---
drivers/dma/ti-dma-crossbar.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/dma/ti-dma-crossbar.c b/drivers/dma/ti-dma-crossbar.c
index 73ecd0a1e312..887cfe676b6d 100644
--- a/drivers/dma/ti-dma-crossbar.c
+++ b/drivers/dma/ti-dma-crossbar.c
@@ -20,12 +20,11 @@
#define TI_XBAR_OUTPUTS 127
#define TI_XBAR_INPUTS 256
-static DEFINE_IDR(map_idr);
-
struct ti_dma_xbar_data {
void __iomem *iomem;
struct dma_router dmarouter;
+ struct idr map_idr;
u16 safe_val; /* Value to rest the crossbar lines */
u32 xbar_requests; /* number of DMA requests connected to XBAR */
@@ -51,7 +50,7 @@ static void ti_dma_xbar_free(struct device *dev, void *route_data)
map->xbar_in, map->xbar_out);
ti_dma_xbar_write(xbar->iomem, map->xbar_out, xbar->safe_val);
- idr_remove(&map_idr, map->xbar_out);
+ idr_remove(&xbar->map_idr, map->xbar_out);
kfree(map);
}
@@ -81,7 +80,7 @@ static void *ti_dma_xbar_route_allocate(struct of_phandle_args *dma_spec,
return ERR_PTR(-ENOMEM);
}
- map->xbar_out = idr_alloc(&map_idr, NULL, 0, xbar->dma_requests,
+ map->xbar_out = idr_alloc(&xbar->map_idr, NULL, 0, xbar->dma_requests,
GFP_KERNEL);
map->xbar_in = (u16)dma_spec->args[0];
@@ -113,6 +112,8 @@ static int ti_dma_xbar_probe(struct platform_device *pdev)
if (!xbar)
return -ENOMEM;
+ idr_init(&xbar->map_idr);
+
dma_node = of_parse_phandle(node, "dma-masters", 0);
if (!dma_node) {
dev_err(&pdev->dev, "Can't get DMA master node\n");
--
2.4.2
--
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