Merge tag 'musb-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

usb: musb: patches for v3.7 merge window

Here we have a bunch of miscellaneous cleanups and fixes
to the musb driver. It fixes a bunch of mistakes errors
which nobody has triggered before, so I'm not Ccing stable
tree.

We are finally improving OMAP's VBUS/ID Mailbox usage so
that we can introduce our PHY drivers properly. Also, we're
adding support for multiple instances of the MUSB IP in
the same SoC, as seen on some platforms from TI which
have 2 MUSB instances.

Other than that, we have some small fixes like not kicking
DMA for a zero byte transfer, or properly handling NAK timeout
on MUSB's host side, and the enabling of DMA Mode1 for any
transfers which are aligned to wMaxPacketSize.

All patches have been pending on mailing list for a long time
and I don't expect any big surprises with this pull request.

1 files changed, 23 insertions, 10 deletions

diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c
index a8c0fadce1b..d62a91fedc2 100644
--- a/drivers/usb/musb/ux500.c
+++ b/drivers/usb/musb/ux500.c
@@ -74,25 +74,34 @@ static int __devinit ux500_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;
 	}
 
 	clk = clk_get(&pdev->dev, "usb");
 	if (IS_ERR(clk)) {
 		dev_err(&pdev->dev, "failed to get clock\n");
 		ret = PTR_ERR(clk);
-		goto err2;
+		goto err3;
 	}
 
 	ret = clk_enable(clk);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to enable clock\n");
-		goto err3;
+		goto err4;
 	}
 
+	musb->id			= musbid;
 	musb->dev.parent		= &pdev->dev;
 	musb->dev.dma_mask		= pdev->dev.dma_mask;
 	musb->dev.coherent_dma_mask	= pdev->dev.coherent_dma_mask;
@@ -109,32 +118,35 @@ static int __devinit ux500_probe(struct platform_device *pdev)
 			pdev->num_resources);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add resources\n");
-		goto err4;
+		goto err5;
 	}
 
 	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add platform_data\n");
-		goto err4;
+		goto err5;
 	}
 
 	ret = platform_device_add(musb);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register musb device\n");
-		goto err4;
+		goto err5;
 	}
 
 	return 0;
 
-err4:
+err5:
 	clk_disable(clk);
 
-err3:
+err4:
 	clk_put(clk);
 
-err2:
+err3:
 	platform_device_put(musb);
 
+err2:
+	musb_put_id(&pdev->dev, musbid);
+
 err1:
 	kfree(glue);
 
@@ -146,6 +158,7 @@ static int __devexit ux500_remove(struct platform_device *pdev)
 {
 	struct ux500_glue	*glue = platform_get_drvdata(pdev);
 
+	musb_put_id(&pdev->dev, glue->musb->id);
 	platform_device_del(glue->musb);
 	platform_device_put(glue->musb);
 	clk_disable(glue->clk);