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usb: musb: add musb_ida for multi instance support

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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>
This commit is contained in:
B, Ravi
2012-08-31 11:09:49 +00:00
committed by Felipe Balbi
parent 00a0b1d58a
commit 65b3d52d02
10 changed files with 215 additions and 74 deletions
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42
drivers/usb/musb/am35x.c
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@@ -458,6 +458,7 @@ static int __devinit am35x_probe(struct platform_device *pdev)
struct clk *clk;
int ret = -ENOMEM;
int musbid;
glue = kzalloc(sizeof(*glue), GFP_KERNEL);
if (!glue) {
@@ -465,38 +466,47 @@ static int __devinit am35x_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;
}
phy_clk = clk_get(&pdev->dev, "fck");
if (IS_ERR(phy_clk)) {
dev_err(&pdev->dev, "failed to get PHY clock\n");
ret = PTR_ERR(phy_clk);
goto err2;
goto err3;
}
clk = clk_get(&pdev->dev, "ick");
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "failed to get clock\n");
ret = PTR_ERR(clk);
goto err3;
goto err4;
}
ret = clk_enable(phy_clk);
if (ret) {
dev_err(&pdev->dev, "failed to enable PHY clock\n");
goto err4;
goto err5;
}
ret = clk_enable(clk);
if (ret) {
dev_err(&pdev->dev, "failed to enable clock\n");
goto err5;
goto err6;
}
musb->id = musbid;
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = &am35x_dmamask;
musb->dev.coherent_dma_mask = am35x_dmamask;
@@ -514,38 +524,41 @@ static int __devinit am35x_probe(struct platform_device *pdev)
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
goto err6;
goto err7;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
goto err6;
goto err7;
}
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
goto err6;
goto err7;
}
return 0;
err6:
err7:
clk_disable(clk);
err5:
err6:
clk_disable(phy_clk);
err4:
err5:
clk_put(clk);
err3:
err4:
clk_put(phy_clk);
err2:
err3:
platform_device_put(musb);
err2:
musb_put_id(&pdev->dev, musbid);
err1:
kfree(glue);
@@ -557,6 +570,7 @@ static int __devexit am35x_remove(struct platform_device *pdev)
{
struct am35x_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);