usb: musb: add musb_ida for multi instance support

Added musb_ida in musb_core.c to manage the multi core ids.

Signed-off-by: Ravi Babu <ravibabu@ti.com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Santhapuri, Damodar <damodar.santhapuri@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 20 insertions, 6 deletions

diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index 54f1b98b74de..26cc8b7823b7 100644
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
@@ -454,6 +454,7 @@ static int __devinit bfin_probe(struct platform_device *pdev)
 	struct bfin_glue		*glue;
 
 	int				ret = -ENOMEM;
+	int				musbid;
 
 	glue = kzalloc(sizeof(*glue), GFP_KERNEL);
 	if (!glue) {
@@ -461,12 +462,21 @@ static int __devinit bfin_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
-	musb = platform_device_alloc("musb-hdrc", -1);
+	/* get the musb id */
+	musbid = musb_get_id(&pdev->dev, GFP_KERNEL);
+	if (musbid < 0) {
+		dev_err(&pdev->dev, "failed to allocate musb id\n");
+		ret = -ENOMEM;
+		goto err1;
+	}
+
+	musb = platform_device_alloc("musb-hdrc", musbid);
 	if (!musb) {
 		dev_err(&pdev->dev, "failed to allocate musb device\n");
-		goto err1;
+		goto err2;
 	}
 
+	musb->id			= musbid;
 	musb->dev.parent		= &pdev->dev;
 	musb->dev.dma_mask		= &bfin_dmamask;
 	musb->dev.coherent_dma_mask	= bfin_dmamask;
@@ -482,26 +492,29 @@ static int __devinit bfin_probe(struct platform_device *pdev)
 			pdev->num_resources);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add resources\n");
-		goto err2;
+		goto err3;
 	}
 
 	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add platform_data\n");
-		goto err2;
+		goto err3;
 	}
 
 	ret = platform_device_add(musb);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register musb device\n");
-		goto err2;
+		goto err3;
 	}
 
 	return 0;
 
-err2:
+err3:
 	platform_device_put(musb);
 
+err2:
+	musb_put_id(&pdev->dev, musbid);
+
 err1:
 	kfree(glue);
 
@@ -513,6 +526,7 @@ static int __devexit bfin_remove(struct platform_device *pdev)
 {
 	struct bfin_glue		*glue = platform_get_drvdata(pdev);
 
+	musb_put_id(&pdev->dev, glue->musb->id);
 	platform_device_del(glue->musb);
 	platform_device_put(glue->musb);
 	kfree(glue);