dmaengine: ti-dma-crossbar: Fix of_device_id data parameter usage

Use pointers to static constant variables for crossbar type and for DMA
offset configuration.

Fixes compiler warnings on 64bit architectures:

drivers/dma/ti-dma-crossbar.c: In function ‘ti_dra7_xbar_probe’:
drivers/dma/ti-dma-crossbar.c:398:21: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  xbar->dma_offset = (u32)match->data;
                     ^
drivers/dma/ti-dma-crossbar.c: In function ‘ti_dma_xbar_probe’:
drivers/dma/ti-dma-crossbar.c:431:10: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  switch ((u32)match->data) {
          ^

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/ti-dma-crossbar.c b/drivers/dma/ti-dma-crossbar.c
index e4f3bd1..3f24aeb 100644 (file)
--- a/drivers/dma/ti-dma-crossbar.c
+++ b/drivers/dma/ti-dma-crossbar.c
@@ -18,15 +18,19 @@
 
 #define TI_XBAR_DRA7           0
 #define TI_XBAR_AM335X         1
+static const u32 ti_xbar_type[] = {
+       [TI_XBAR_DRA7] = TI_XBAR_DRA7,
+       [TI_XBAR_AM335X] = TI_XBAR_AM335X,
+};
 
 static const struct of_device_id ti_dma_xbar_match[] = {
        {
                .compatible = "ti,dra7-dma-crossbar",
-               .data = (void *)TI_XBAR_DRA7,
+               .data = &ti_xbar_type[TI_XBAR_DRA7],
        },
        {
                .compatible = "ti,am335x-edma-crossbar",
-               .data = (void *)TI_XBAR_AM335X,
+               .data = &ti_xbar_type[TI_XBAR_AM335X],
        },
        {},
 };
@@ -190,9 +194,6 @@ static int ti_am335x_xbar_probe(struct platform_device *pdev)
 #define TI_DRA7_XBAR_OUTPUTS   127
 #define TI_DRA7_XBAR_INPUTS    256
 
-#define TI_XBAR_EDMA_OFFSET    0
-#define TI_XBAR_SDMA_OFFSET    1
-
 struct ti_dra7_xbar_data {
        void __iomem *iomem;
 
@@ -280,18 +281,25 @@ static void *ti_dra7_xbar_route_allocate(struct of_phandle_args *dma_spec,
        return map;
 }
 
+#define TI_XBAR_EDMA_OFFSET    0
+#define TI_XBAR_SDMA_OFFSET    1
+static const u32 ti_dma_offset[] = {
+       [TI_XBAR_EDMA_OFFSET] = 0,
+       [TI_XBAR_SDMA_OFFSET] = 1,
+};
+
 static const struct of_device_id ti_dra7_master_match[] = {
        {
                .compatible = "ti,omap4430-sdma",
-               .data = (void *)TI_XBAR_SDMA_OFFSET,
+               .data = &ti_dma_offset[TI_XBAR_SDMA_OFFSET],
        },
        {
                .compatible = "ti,edma3",
-               .data = (void *)TI_XBAR_EDMA_OFFSET,
+               .data = &ti_dma_offset[TI_XBAR_EDMA_OFFSET],
        },
        {
                .compatible = "ti,edma3-tpcc",
-               .data = (void *)TI_XBAR_EDMA_OFFSET,
+               .data = &ti_dma_offset[TI_XBAR_EDMA_OFFSET],
        },
        {},
 };
@@ -395,7 +403,7 @@ static int ti_dra7_xbar_probe(struct platform_device *pdev)
 
        xbar->dmarouter.dev = &pdev->dev;
        xbar->dmarouter.route_free = ti_dra7_xbar_free;
-       xbar->dma_offset = (u32)match->data;
+       xbar->dma_offset = *(u32 *)match->data;
 
        mutex_init(&xbar->mutex);
        platform_set_drvdata(pdev, xbar);
@@ -428,7 +436,7 @@ static int ti_dma_xbar_probe(struct platform_device *pdev)
        if (unlikely(!match))
                return -EINVAL;
 
-       switch ((u32)match->data) {
+       switch (*(u32 *)match->data) {
        case TI_XBAR_DRA7:
                ret = ti_dra7_xbar_probe(pdev);
                break;