From: Misael Lopez Cruz Date: Wed, 22 Jul 2015 08:48:09 +0000 (+0300) Subject: dmaengine: ti-dma-crossbar: Make idr xbar instance-specific X-Git-Tag: v4.13~4580^2~14^2~2 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=be559daabfaac74a7acd8cb56fae86fca7349f10;p=mirror_ubuntu-bionic-kernel.git dmaengine: ti-dma-crossbar: Make idr xbar instance-specific In preparation for supporting multiple DMA crossbar instances, make the idr xbar instance specific. Signed-off-by: Misael Lopez Cruz Signed-off-by: Peter Ujfalusi Signed-off-by: Vinod Koul --- diff --git a/drivers/dma/ti-dma-crossbar.c b/drivers/dma/ti-dma-crossbar.c index 24f5ca2356bf..1fd3fb73d6e8 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");